diff --git a/.get_maintainer.ignore b/.get_maintainer.ignore
index cca6d87..a64d219 100644
--- a/.get_maintainer.ignore
+++ b/.get_maintainer.ignore
@@ -1 +1,2 @@
 Christoph Hellwig <hch@lst.de>
+Marc Gonzalez <marc.w.gonzalez@free.fr>
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index 4bf1b4d..99dee23 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -25,6 +25,7 @@
     o "atmel,at91sam9n12"
     o "atmel,at91sam9rl"
     o "atmel,at91sam9xe"
+    o "microchip,sam9x60"
  * "atmel,sama5" for SoCs using a Cortex-A5, shall be extended with the specific
    SoC family:
     o "atmel,sama5d2" shall be extended with the specific SoC compatible:
diff --git a/Documentation/devicetree/bindings/arm/keystone/ti,sci.txt b/Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
index b56a02c..6f0cd31 100644
--- a/Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
+++ b/Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
@@ -24,7 +24,8 @@
 
 Required properties:
 -------------------
-- compatible: should be "ti,k2g-sci"
+- compatible:	should be "ti,k2g-sci" for TI 66AK2G SoC
+		should be "ti,am654-sci" for for TI AM654 SoC
 - mbox-names:
 	"rx" - Mailbox corresponding to receive path
 	"tx" - Mailbox corresponding to transmit path
diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.txt b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.txt
new file mode 100644
index 0000000..7841cb0
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.txt
@@ -0,0 +1,66 @@
+Texas Instruments K3 Interrupt Aggregator
+=========================================
+
+The Interrupt Aggregator (INTA) provides a centralized machine
+which handles the termination of system events to that they can
+be coherently processed by the host(s) in the system. A maximum
+of 64 events can be mapped to a single interrupt.
+
+
+                              Interrupt Aggregator
+                     +-----------------------------------------+
+                     |      Intmap            VINT             |
+                     | +--------------+  +------------+        |
+            m ------>| | vint  | bit  |  | 0 |.....|63| vint0  |
+               .     | +--------------+  +------------+        |       +------+
+               .     |         .               .               |       | HOST |
+Globalevents  ------>|         .               .               |------>| IRQ  |
+               .     |         .               .               |       | CTRL |
+               .     |         .               .               |       +------+
+            n ------>| +--------------+  +------------+        |
+                     | | vint  | bit  |  | 0 |.....|63| vintx  |
+                     | +--------------+  +------------+        |
+                     |                                         |
+                     +-----------------------------------------+
+
+Configuration of these Intmap registers that maps global events to vint is done
+by a system controller (like the Device Memory and Security Controller on K3
+AM654 SoC). Driver should request the system controller to get the range
+of global events and vints assigned to the requesting host. Management
+of these requested resources should be handled by driver and requests
+system controller to map specific global event to vint, bit pair.
+
+Communication between the host processor running an OS and the system
+controller happens through a protocol called TI System Control Interface
+(TISCI protocol). For more details refer:
+Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
+
+TISCI Interrupt Aggregator Node:
+-------------------------------
+- compatible:		Must be "ti,sci-inta".
+- reg:			Should contain registers location and length.
+- interrupt-controller:	Identifies the node as an interrupt controller
+- msi-controller:	Identifies the node as an MSI controller.
+- interrupt-parent:	phandle of irq parent.
+- ti,sci:		Phandle to TI-SCI compatible System controller node.
+- ti,sci-dev-id:	TISCI device ID of the Interrupt Aggregator.
+- ti,sci-rm-range-vint:	Array of TISCI subtype ids representing vints(inta
+			outputs) range within this INTA, assigned to the
+			requesting host context.
+- ti,sci-rm-range-global-event:	Array of TISCI subtype ids representing the
+			global events range reaching this IA and are assigned
+			to the requesting host context.
+
+Example:
+--------
+main_udmass_inta: interrupt-controller@33d00000 {
+	compatible = "ti,sci-inta";
+	reg = <0x0 0x33d00000 0x0 0x100000>;
+	interrupt-controller;
+	msi-controller;
+	interrupt-parent = <&main_navss_intr>;
+	ti,sci = <&dmsc>;
+	ti,sci-dev-id = <179>;
+	ti,sci-rm-range-vint = <0x0>;
+	ti,sci-rm-range-global-event = <0x1>;
+};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt
new file mode 100644
index 0000000..1a8718f
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt
@@ -0,0 +1,82 @@
+Texas Instruments K3 Interrupt Router
+=====================================
+
+The Interrupt Router (INTR) module provides a mechanism to mux M
+interrupt inputs to N interrupt outputs, where all M inputs are selectable
+to be driven per N output. An Interrupt Router can either handle edge triggered
+or level triggered interrupts and that is fixed in hardware.
+
+                                 Interrupt Router
+                             +----------------------+
+                             |  Inputs     Outputs  |
+        +-------+            | +------+    +-----+  |
+        | GPIO  |----------->| | irq0 |    |  0  |  |       Host IRQ
+        +-------+            | +------+    +-----+  |      controller
+                             |    .           .     |      +-------+
+        +-------+            |    .           .     |----->|  IRQ  |
+        | INTA  |----------->|    .           .     |      +-------+
+        +-------+            |    .        +-----+  |
+                             | +------+    |  N  |  |
+                             | | irqM |    +-----+  |
+                             | +------+             |
+                             |                      |
+                             +----------------------+
+
+There is one register per output (MUXCNTL_N) that controls the selection.
+Configuration of these MUXCNTL_N registers is done by a system controller
+(like the Device Memory and Security Controller on K3 AM654 SoC). System
+controller will keep track of the used and unused registers within the Router.
+Driver should request the system controller to get the range of GIC IRQs
+assigned to the requesting hosts. It is the drivers responsibility to keep
+track of Host IRQs.
+
+Communication between the host processor running an OS and the system
+controller happens through a protocol called TI System Control Interface
+(TISCI protocol). For more details refer:
+Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
+
+TISCI Interrupt Router Node:
+----------------------------
+Required Properties:
+- compatible:		Must be "ti,sci-intr".
+- ti,intr-trigger-type:	Should be one of the following:
+			1: If intr supports edge triggered interrupts.
+			4: If intr supports level triggered interrupts.
+- interrupt-controller:	Identifies the node as an interrupt controller
+- #interrupt-cells:	Specifies the number of cells needed to encode an
+			interrupt source. The value should be 2.
+			First cell should contain the TISCI device ID of source
+			Second cell should contain the interrupt source offset
+			within the device.
+- ti,sci:		Phandle to TI-SCI compatible System controller node.
+- ti,sci-dst-id:	TISCI device ID of the destination IRQ controller.
+- ti,sci-rm-range-girq:	Array of TISCI subtype ids representing the host irqs
+			assigned to this interrupt router. Each subtype id
+			corresponds to a range of host irqs.
+
+For more details on TISCI IRQ resource management refer:
+http://downloads.ti.com/tisci/esd/latest/2_tisci_msgs/rm/rm_irq.html
+
+Example:
+--------
+The following example demonstrates both interrupt router node and the consumer
+node(main gpio) on the AM654 SoC:
+
+main_intr: interrupt-controller0 {
+	compatible = "ti,sci-intr";
+	ti,intr-trigger-type = <1>;
+	interrupt-controller;
+	interrupt-parent = <&gic500>;
+	#interrupt-cells = <2>;
+	ti,sci = <&dmsc>;
+	ti,sci-dst-id = <56>;
+	ti,sci-rm-range-girq = <0x1>;
+};
+
+main_gpio0: gpio@600000 {
+	...
+	interrupt-parent = <&main_intr>;
+	interrupts = <57 256>, <57 257>, <57 258>,
+		     <57 259>, <57 260>, <57 261>;
+	...
+};
diff --git a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
new file mode 100644
index 0000000..73d8f19
--- /dev/null
+++ b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
@@ -0,0 +1,51 @@
+SiFive L2 Cache Controller
+--------------------------
+The SiFive Level 2 Cache Controller is used to provide access to fast copies
+of memory for masters in a Core Complex. The Level 2 Cache Controller also
+acts as directory-based coherency manager.
+All the properties in ePAPR/DeviceTree specification applies for this platform
+
+Required Properties:
+--------------------
+- compatible: Should be "sifive,fu540-c000-ccache" and "cache"
+
+- cache-block-size: Specifies the block size in bytes of the cache.
+  Should be 64
+
+- cache-level: Should be set to 2 for a level 2 cache
+
+- cache-sets: Specifies the number of associativity sets of the cache.
+  Should be 1024
+
+- cache-size: Specifies the size in bytes of the cache. Should be 2097152
+
+- cache-unified: Specifies the cache is a unified cache
+
+- interrupts: Must contain 3 entries (DirError, DataError and DataFail signals)
+
+- reg: Physical base address and size of L2 cache controller registers map
+
+Optional Properties:
+--------------------
+- next-level-cache: phandle to the next level cache if present.
+
+- memory-region: reference to the reserved-memory for the L2 Loosely Integrated
+  Memory region. The reserved memory node should be defined as per the bindings
+  in reserved-memory.txt
+
+
+Example:
+
+	cache-controller@2010000 {
+		compatible = "sifive,fu540-c000-ccache", "cache";
+		cache-block-size = <64>;
+		cache-level = <2>;
+		cache-sets = <1024>;
+		cache-size = <2097152>;
+		cache-unified;
+		interrupt-parent = <&plic0>;
+		interrupts = <1 2 3>;
+		reg = <0x0 0x2010000 0x0 0x1000>;
+		next-level-cache = <&L25 &L40 &L36>;
+		memory-region = <&l2_lim>;
+	};
diff --git a/Documentation/devicetree/bindings/timer/allwinner,sun4i-timer.txt b/Documentation/devicetree/bindings/timer/allwinner,sun4i-timer.txt
index 5c2e235..3da9d51 100644
--- a/Documentation/devicetree/bindings/timer/allwinner,sun4i-timer.txt
+++ b/Documentation/devicetree/bindings/timer/allwinner,sun4i-timer.txt
@@ -2,7 +2,9 @@
 
 Required properties:
 
-- compatible : should be "allwinner,sun4i-a10-timer"
+- compatible : should be one of the following:
+              "allwinner,sun4i-a10-timer"
+              "allwinner,suniv-f1c100s-timer"
 - reg : Specifies base physical address and size of the registers.
 - interrupts : The interrupt of the first timer
 - clocks: phandle to the source clock (usually a 24 MHz fixed clock)
diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt
index 99994a46..69c7fa7 100644
--- a/Documentation/driver-model/devres.txt
+++ b/Documentation/driver-model/devres.txt
@@ -271,6 +271,9 @@
   devm_gpio_request_one()
   devm_gpio_free()
 
+I2C
+  devm_i2c_new_dummy_device()
+
 IIO
   devm_iio_device_alloc()
   devm_iio_device_free()
diff --git a/MAINTAINERS b/MAINTAINERS
index 1aa19b9..5cfbea4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15548,6 +15548,12 @@
 F:	Documentation/devicetree/bindings/clock/ti,sci-clk.txt
 F:	drivers/clk/keystone/sci-clk.c
 F:	drivers/reset/reset-ti-sci.c
+F:	Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.txt
+F:	Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.txt
+F:	drivers/irqchip/irq-ti-sci-intr.c
+F:	drivers/irqchip/irq-ti-sci-inta.c
+F:	include/linux/soc/ti/ti_sci_inta_msi.h
+F:	drivers/soc/ti/ti_sci_inta_msi.c
 
 Texas Instruments ASoC drivers
 M:	Peter Ujfalusi <peter.ujfalusi@ti.com>
diff --git a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi
index 4990ed9..3e39b9a 100644
--- a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi
+++ b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi
@@ -153,7 +153,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc1_pins>;
 	wp-gpios = <&gpio4 30 GPIO_ACTIVE_HIGH>;		/* gpio_126 */
-	cd-gpios = <&gpio4 14 IRQ_TYPE_LEVEL_LOW>;		/* gpio_110 */
+	cd-gpios = <&gpio4 14 GPIO_ACTIVE_LOW>;			/* gpio_110 */
 	vmmc-supply = <&vmmc1>;
 	bus-width = <4>;
 	cap-power-off-card;
diff --git a/arch/arm/configs/sama5_defconfig b/arch/arm/configs/sama5_defconfig
index 515cb37..d5341b0 100644
--- a/arch/arm/configs/sama5_defconfig
+++ b/arch/arm/configs/sama5_defconfig
@@ -150,7 +150,7 @@
 CONFIG_V4L_PLATFORM_DRIVERS=y
 CONFIG_SOC_CAMERA=y
 CONFIG_VIDEO_ATMEL_ISI=y
-CONFIG_SOC_CAMERA_OV2640=y
+CONFIG_SOC_CAMERA_OV2640=m
 CONFIG_DRM=y
 CONFIG_DRM_ATMEL_HLCDC=y
 CONFIG_DRM_PANEL_SIMPLE=y
diff --git a/arch/arm/configs/socfpga_defconfig b/arch/arm/configs/socfpga_defconfig
index 9d42cfe..6701a97 100644
--- a/arch/arm/configs/socfpga_defconfig
+++ b/arch/arm/configs/socfpga_defconfig
@@ -21,7 +21,6 @@
 CONFIG_OPROFILE=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
-# CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_NET=y
 CONFIG_PACKET=y
@@ -128,6 +127,8 @@
 CONFIG_DMADEVICES=y
 CONFIG_PL330_DMA=y
 CONFIG_DMATEST=m
+CONFIG_IIO=y
+CONFIG_LTC2497=y
 CONFIG_FPGA=y
 CONFIG_FPGA_MGR_SOCFPGA=y
 CONFIG_FPGA_MGR_SOCFPGA_A10=y
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 903f23c..a2220e5 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -21,7 +21,6 @@
 	depends on ARCH_MULTI_V7
 	select SOC_SAMA5
 	select CACHE_L2X0
-	select HAVE_FB_ATMEL
 	select HAVE_AT91_UTMI
 	select HAVE_AT91_USB_CLK
 	select HAVE_AT91_H32MX
@@ -36,7 +35,6 @@
 	bool "SAMA5D3 family"
 	depends on ARCH_MULTI_V7
 	select SOC_SAMA5
-	select HAVE_FB_ATMEL
 	select HAVE_AT91_UTMI
 	select HAVE_AT91_SMD
 	select HAVE_AT91_USB_CLK
@@ -50,7 +48,6 @@
 	depends on ARCH_MULTI_V7
 	select SOC_SAMA5
 	select CACHE_L2X0
-	select HAVE_FB_ATMEL
 	select HAVE_AT91_UTMI
 	select HAVE_AT91_SMD
 	select HAVE_AT91_USB_CLK
@@ -107,6 +104,29 @@
 	    AT91SAM9X35
 	    AT91SAM9XE
 
+comment "Clocksource driver selection"
+
+config ATMEL_CLOCKSOURCE_PIT
+	bool "Periodic Interval Timer (PIT) support"
+	depends on SOC_AT91SAM9 || SOC_SAMA5
+	default SOC_AT91SAM9 || SOC_SAMA5
+	select ATMEL_PIT
+	help
+	  Select this to get a clocksource based on the Atmel Periodic Interval
+	  Timer. It has a relatively low resolution and the TC Block clocksource
+	  should be preferred.
+
+config ATMEL_CLOCKSOURCE_TCB
+	bool "Timer Counter Blocks (TCB) support"
+	default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAMA5
+	select ATMEL_TCB_CLKSRC
+	help
+	  Select this to get a high precision clocksource based on a
+	  TC block with a 5+ MHz base clock rate.
+	  On platforms with 16-bit counters, two timer channels are combined
+	  to make a single 32-bit timer.
+	  It can also be used as a clock event device supporting oneshot mode.
+
 config HAVE_AT91_UTMI
 	bool
 
diff --git a/arch/arm/mach-at91/at91sam9.c b/arch/arm/mach-at91/at91sam9.c
index 3dbdef4..c12563b 100644
--- a/arch/arm/mach-at91/at91sam9.c
+++ b/arch/arm/mach-at91/at91sam9.c
@@ -32,3 +32,21 @@
 	.init_machine	= at91sam9_init,
 	.dt_compat	= at91_dt_board_compat,
 MACHINE_END
+
+static void __init sam9x60_init(void)
+{
+	of_platform_default_populate(NULL, NULL, NULL);
+
+	sam9x60_pm_init();
+}
+
+static const char *const sam9x60_dt_board_compat[] __initconst = {
+	"microchip,sam9x60",
+	NULL
+};
+
+DT_MACHINE_START(sam9x60_dt, "Microchip SAM9X60")
+	/* Maintainer: Microchip */
+	.init_machine	= sam9x60_init,
+	.dt_compat	= sam9x60_dt_board_compat,
+MACHINE_END
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index e2bd172..72b45ac 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -14,11 +14,13 @@
 #ifdef CONFIG_PM
 extern void __init at91rm9200_pm_init(void);
 extern void __init at91sam9_pm_init(void);
+extern void __init sam9x60_pm_init(void);
 extern void __init sama5_pm_init(void);
 extern void __init sama5d2_pm_init(void);
 #else
 static inline void __init at91rm9200_pm_init(void) { }
 static inline void __init at91sam9_pm_init(void) { }
+static inline void __init sam9x60_pm_init(void) { }
 static inline void __init sama5_pm_init(void) { }
 static inline void __init sama5d2_pm_init(void) { }
 #endif
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 2a757dc..6c81475 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -39,6 +39,20 @@
 extern void at91_pinctrl_gpio_resume(void);
 #endif
 
+struct at91_soc_pm {
+	int (*config_shdwc_ws)(void __iomem *shdwc, u32 *mode, u32 *polarity);
+	int (*config_pmc_ws)(void __iomem *pmc, u32 mode, u32 polarity);
+	const struct of_device_id *ws_ids;
+	struct at91_pm_data data;
+};
+
+static struct at91_soc_pm soc_pm = {
+	.data = {
+		.standby_mode = AT91_PM_STANDBY,
+		.suspend_mode = AT91_PM_ULP0,
+	},
+};
+
 static const match_table_t pm_modes __initconst = {
 	{ AT91_PM_STANDBY, "standby" },
 	{ AT91_PM_ULP0, "ulp0" },
@@ -47,16 +61,11 @@
 	{ -1, NULL },
 };
 
-static struct at91_pm_data pm_data = {
-	.standby_mode = AT91_PM_STANDBY,
-	.suspend_mode = AT91_PM_ULP0,
-};
-
 #define at91_ramc_read(id, field) \
-	__raw_readl(pm_data.ramc[id] + field)
+	__raw_readl(soc_pm.data.ramc[id] + field)
 
 #define at91_ramc_write(id, field, value) \
-	__raw_writel(value, pm_data.ramc[id] + field)
+	__raw_writel(value, soc_pm.data.ramc[id] + field)
 
 static int at91_pm_valid_state(suspend_state_t state)
 {
@@ -91,6 +100,8 @@
 	{ .pmc_fsmr_bit = AT91_PMC_RTCAL,	.shdwc_mr_bit = BIT(17) },
 	{ .pmc_fsmr_bit = AT91_PMC_USBAL },
 	{ .pmc_fsmr_bit = AT91_PMC_SDMMC_CD },
+	{ .pmc_fsmr_bit = AT91_PMC_RTTAL },
+	{ .pmc_fsmr_bit = AT91_PMC_RXLP_MCE },
 };
 
 static const struct of_device_id sama5d2_ws_ids[] = {
@@ -105,6 +116,17 @@
 	{ /* sentinel */ }
 };
 
+static const struct of_device_id sam9x60_ws_ids[] = {
+	{ .compatible = "atmel,at91sam9x5-rtc",		.data = &ws_info[1] },
+	{ .compatible = "atmel,at91rm9200-ohci",	.data = &ws_info[2] },
+	{ .compatible = "usb-ohci",			.data = &ws_info[2] },
+	{ .compatible = "atmel,at91sam9g45-ehci",	.data = &ws_info[2] },
+	{ .compatible = "usb-ehci",			.data = &ws_info[2] },
+	{ .compatible = "atmel,at91sam9260-rtt",	.data = &ws_info[4] },
+	{ .compatible = "cdns,sam9x60-macb",		.data = &ws_info[5] },
+	{ /* sentinel */ }
+};
+
 static int at91_pm_config_ws(unsigned int pm_mode, bool set)
 {
 	const struct wakeup_source_info *wsi;
@@ -116,24 +138,22 @@
 	if (pm_mode != AT91_PM_ULP1)
 		return 0;
 
-	if (!pm_data.pmc || !pm_data.shdwc)
+	if (!soc_pm.data.pmc || !soc_pm.data.shdwc || !soc_pm.ws_ids)
 		return -EPERM;
 
 	if (!set) {
-		writel(mode, pm_data.pmc + AT91_PMC_FSMR);
+		writel(mode, soc_pm.data.pmc + AT91_PMC_FSMR);
 		return 0;
 	}
 
-	/* SHDWC.WUIR */
-	val = readl(pm_data.shdwc + 0x0c);
-	mode |= (val & 0x3ff);
-	polarity |= ((val >> 16) & 0x3ff);
+	if (soc_pm.config_shdwc_ws)
+		soc_pm.config_shdwc_ws(soc_pm.data.shdwc, &mode, &polarity);
 
 	/* SHDWC.MR */
-	val = readl(pm_data.shdwc + 0x04);
+	val = readl(soc_pm.data.shdwc + 0x04);
 
 	/* Loop through defined wakeup sources. */
-	for_each_matching_node_and_match(np, sama5d2_ws_ids, &match) {
+	for_each_matching_node_and_match(np, soc_pm.ws_ids, &match) {
 		pdev = of_find_device_by_node(np);
 		if (!pdev)
 			continue;
@@ -155,8 +175,8 @@
 	}
 
 	if (mode) {
-		writel(mode, pm_data.pmc + AT91_PMC_FSMR);
-		writel(polarity, pm_data.pmc + AT91_PMC_FSPR);
+		if (soc_pm.config_pmc_ws)
+			soc_pm.config_pmc_ws(soc_pm.data.pmc, mode, polarity);
 	} else {
 		pr_err("AT91: PM: no ULP1 wakeup sources found!");
 	}
@@ -164,6 +184,34 @@
 	return mode ? 0 : -EPERM;
 }
 
+static int at91_sama5d2_config_shdwc_ws(void __iomem *shdwc, u32 *mode,
+					u32 *polarity)
+{
+	u32 val;
+
+	/* SHDWC.WUIR */
+	val = readl(shdwc + 0x0c);
+	*mode |= (val & 0x3ff);
+	*polarity |= ((val >> 16) & 0x3ff);
+
+	return 0;
+}
+
+static int at91_sama5d2_config_pmc_ws(void __iomem *pmc, u32 mode, u32 polarity)
+{
+	writel(mode, pmc + AT91_PMC_FSMR);
+	writel(polarity, pmc + AT91_PMC_FSPR);
+
+	return 0;
+}
+
+static int at91_sam9x60_config_pmc_ws(void __iomem *pmc, u32 mode, u32 polarity)
+{
+	writel(mode, pmc + AT91_PMC_FSMR);
+
+	return 0;
+}
+
 /*
  * Called after processes are frozen, but before we shutdown devices.
  */
@@ -171,18 +219,18 @@
 {
 	switch (state) {
 	case PM_SUSPEND_MEM:
-		pm_data.mode = pm_data.suspend_mode;
+		soc_pm.data.mode = soc_pm.data.suspend_mode;
 		break;
 
 	case PM_SUSPEND_STANDBY:
-		pm_data.mode = pm_data.standby_mode;
+		soc_pm.data.mode = soc_pm.data.standby_mode;
 		break;
 
 	default:
-		pm_data.mode = -1;
+		soc_pm.data.mode = -1;
 	}
 
-	return at91_pm_config_ws(pm_data.mode, true);
+	return at91_pm_config_ws(soc_pm.data.mode, true);
 }
 
 /*
@@ -194,10 +242,10 @@
 	unsigned long scsr;
 	int i;
 
-	scsr = readl(pm_data.pmc + AT91_PMC_SCSR);
+	scsr = readl(soc_pm.data.pmc + AT91_PMC_SCSR);
 
 	/* USB must not be using PLLB */
-	if ((scsr & pm_data.uhp_udp_mask) != 0) {
+	if ((scsr & soc_pm.data.uhp_udp_mask) != 0) {
 		pr_err("AT91: PM - Suspend-to-RAM with USB still active\n");
 		return 0;
 	}
@@ -208,7 +256,7 @@
 
 		if ((scsr & (AT91_PMC_PCK0 << i)) == 0)
 			continue;
-		css = readl(pm_data.pmc + AT91_PMC_PCKR(i)) & AT91_PMC_CSS;
+		css = readl(soc_pm.data.pmc + AT91_PMC_PCKR(i)) & AT91_PMC_CSS;
 		if (css != AT91_PMC_CSS_SLOW) {
 			pr_err("AT91: PM - Suspend-to-RAM with PCK%d src %d\n", i, css);
 			return 0;
@@ -230,7 +278,7 @@
  */
 int at91_suspend_entering_slow_clock(void)
 {
-	return (pm_data.mode >= AT91_PM_ULP0);
+	return (soc_pm.data.mode >= AT91_PM_ULP0);
 }
 EXPORT_SYMBOL(at91_suspend_entering_slow_clock);
 
@@ -243,14 +291,14 @@
 	flush_cache_all();
 	outer_disable();
 
-	at91_suspend_sram_fn(&pm_data);
+	at91_suspend_sram_fn(&soc_pm.data);
 
 	return 0;
 }
 
 static void at91_pm_suspend(suspend_state_t state)
 {
-	if (pm_data.mode == AT91_PM_BACKUP) {
+	if (soc_pm.data.mode == AT91_PM_BACKUP) {
 		pm_bu->suspended = 1;
 
 		cpu_suspend(0, at91_suspend_finish);
@@ -289,7 +337,7 @@
 		/*
 		 * Ensure that clocks are in a valid state.
 		 */
-		if (pm_data.mode >= AT91_PM_ULP0 &&
+		if (soc_pm.data.mode >= AT91_PM_ULP0 &&
 		    !at91_pm_verify_clocks())
 			goto error;
 
@@ -318,7 +366,7 @@
  */
 static void at91_pm_end(void)
 {
-	at91_pm_config_ws(pm_data.mode, false);
+	at91_pm_config_ws(soc_pm.data.mode, false);
 }
 
 
@@ -351,7 +399,7 @@
 		"    str    %2, [%1, %3]\n\t"
 		"    mcr    p15, 0, %0, c7, c0, 4\n\t"
 		:
-		: "r" (0), "r" (pm_data.ramc[0]),
+		: "r" (0), "r" (soc_pm.data.ramc[0]),
 		  "r" (1), "r" (AT91_MC_SDRAMC_SRR));
 }
 
@@ -374,7 +422,7 @@
 		at91_ramc_write(0, AT91_DDRSDRC_MDR, mdr);
 	}
 
-	if (pm_data.ramc[1]) {
+	if (soc_pm.data.ramc[1]) {
 		saved_lpr1 = at91_ramc_read(1, AT91_DDRSDRC_LPR);
 		lpr1 = saved_lpr1 & ~AT91_DDRSDRC_LPCB;
 		lpr1 |= AT91_DDRSDRC_LPCB_SELF_REFRESH;
@@ -392,14 +440,14 @@
 
 	/* self-refresh mode now */
 	at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0);
-	if (pm_data.ramc[1])
+	if (soc_pm.data.ramc[1])
 		at91_ramc_write(1, AT91_DDRSDRC_LPR, lpr1);
 
 	cpu_do_idle();
 
 	at91_ramc_write(0, AT91_DDRSDRC_MDR, saved_mdr0);
 	at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0);
-	if (pm_data.ramc[1]) {
+	if (soc_pm.data.ramc[1]) {
 		at91_ramc_write(0, AT91_DDRSDRC_MDR, saved_mdr1);
 		at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);
 	}
@@ -429,7 +477,7 @@
 	u32 lpr0, lpr1 = 0;
 	u32 saved_lpr0, saved_lpr1 = 0;
 
-	if (pm_data.ramc[1]) {
+	if (soc_pm.data.ramc[1]) {
 		saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR);
 		lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB;
 		lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH;
@@ -441,13 +489,13 @@
 
 	/* self-refresh mode now */
 	at91_ramc_write(0, AT91_SDRAMC_LPR, lpr0);
-	if (pm_data.ramc[1])
+	if (soc_pm.data.ramc[1])
 		at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1);
 
 	cpu_do_idle();
 
 	at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr0);
-	if (pm_data.ramc[1])
+	if (soc_pm.data.ramc[1])
 		at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1);
 }
 
@@ -480,14 +528,14 @@
 	const struct ramc_info *ramc;
 
 	for_each_matching_node_and_match(np, ramc_ids, &of_id) {
-		pm_data.ramc[idx] = of_iomap(np, 0);
-		if (!pm_data.ramc[idx])
+		soc_pm.data.ramc[idx] = of_iomap(np, 0);
+		if (!soc_pm.data.ramc[idx])
 			panic(pr_fmt("unable to map ramc[%d] cpu registers\n"), idx);
 
 		ramc = of_id->data;
 		if (!standby)
 			standby = ramc->idle;
-		pm_data.memctrl = ramc->memctrl;
+		soc_pm.data.memctrl = ramc->memctrl;
 
 		idx++;
 	}
@@ -509,12 +557,17 @@
 	 * Disable the processor clock.  The processor will be automatically
 	 * re-enabled by an interrupt or by a reset.
 	 */
-	writel(AT91_PMC_PCK, pm_data.pmc + AT91_PMC_SCDR);
+	writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR);
+}
+
+static void at91sam9x60_idle(void)
+{
+	cpu_do_idle();
 }
 
 static void at91sam9_idle(void)
 {
-	writel(AT91_PMC_PCK, pm_data.pmc + AT91_PMC_SCDR);
+	writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR);
 	cpu_do_idle();
 }
 
@@ -566,8 +619,8 @@
 
 static bool __init at91_is_pm_mode_active(int pm_mode)
 {
-	return (pm_data.standby_mode == pm_mode ||
-		pm_data.suspend_mode == pm_mode);
+	return (soc_pm.data.standby_mode == pm_mode ||
+		soc_pm.data.suspend_mode == pm_mode);
 }
 
 static int __init at91_pm_backup_init(void)
@@ -577,6 +630,9 @@
 	struct platform_device *pdev = NULL;
 	int ret = -ENODEV;
 
+	if (!IS_ENABLED(CONFIG_SOC_SAMA5D2))
+		return -EPERM;
+
 	if (!at91_is_pm_mode_active(AT91_PM_BACKUP))
 		return 0;
 
@@ -586,7 +642,7 @@
 		return ret;
 	}
 
-	pm_data.sfrbu = of_iomap(np, 0);
+	soc_pm.data.sfrbu = of_iomap(np, 0);
 	of_node_put(np);
 
 	np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-securam");
@@ -622,8 +678,8 @@
 securam_fail:
 	put_device(&pdev->dev);
 securam_fail_no_ref_dev:
-	iounmap(pm_data.sfrbu);
-	pm_data.sfrbu = NULL;
+	iounmap(soc_pm.data.sfrbu);
+	soc_pm.data.sfrbu = NULL;
 	return ret;
 }
 
@@ -632,10 +688,10 @@
 	if (pm_mode != AT91_PM_ULP1 && pm_mode != AT91_PM_BACKUP)
 		return;
 
-	if (pm_data.standby_mode == pm_mode)
-		pm_data.standby_mode = AT91_PM_ULP0;
-	if (pm_data.suspend_mode == pm_mode)
-		pm_data.suspend_mode = AT91_PM_ULP0;
+	if (soc_pm.data.standby_mode == pm_mode)
+		soc_pm.data.standby_mode = AT91_PM_ULP0;
+	if (soc_pm.data.suspend_mode == pm_mode)
+		soc_pm.data.suspend_mode = AT91_PM_ULP0;
 }
 
 static void __init at91_pm_modes_init(void)
@@ -653,7 +709,7 @@
 		goto ulp1_default;
 	}
 
-	pm_data.shdwc = of_iomap(np, 0);
+	soc_pm.data.shdwc = of_iomap(np, 0);
 	of_node_put(np);
 
 	ret = at91_pm_backup_init();
@@ -667,8 +723,8 @@
 	return;
 
 unmap:
-	iounmap(pm_data.shdwc);
-	pm_data.shdwc = NULL;
+	iounmap(soc_pm.data.shdwc);
+	soc_pm.data.shdwc = NULL;
 ulp1_default:
 	at91_pm_use_default_mode(AT91_PM_ULP1);
 backup_default:
@@ -711,14 +767,14 @@
 		platform_device_register(&at91_cpuidle_device);
 
 	pmc_np = of_find_matching_node_and_match(NULL, atmel_pmc_ids, &of_id);
-	pm_data.pmc = of_iomap(pmc_np, 0);
-	if (!pm_data.pmc) {
+	soc_pm.data.pmc = of_iomap(pmc_np, 0);
+	if (!soc_pm.data.pmc) {
 		pr_err("AT91: PM not supported, PMC not found\n");
 		return;
 	}
 
 	pmc = of_id->data;
-	pm_data.uhp_udp_mask = pmc->uhp_udp_mask;
+	soc_pm.data.uhp_udp_mask = pmc->uhp_udp_mask;
 
 	if (pm_idle)
 		arm_pm_idle = pm_idle;
@@ -728,8 +784,8 @@
 	if (at91_suspend_sram_fn) {
 		suspend_set_ops(&at91_pm_ops);
 		pr_info("AT91: PM: standby: %s, suspend: %s\n",
-			pm_modes[pm_data.standby_mode].pattern,
-			pm_modes[pm_data.suspend_mode].pattern);
+			pm_modes[soc_pm.data.standby_mode].pattern,
+			pm_modes[soc_pm.data.suspend_mode].pattern);
 	} else {
 		pr_info("AT91: PM not supported, due to no SRAM allocated\n");
 	}
@@ -750,6 +806,19 @@
 	at91_pm_init(at91rm9200_idle);
 }
 
+void __init sam9x60_pm_init(void)
+{
+	if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))
+		return;
+
+	at91_pm_modes_init();
+	at91_dt_ramc();
+	at91_pm_init(at91sam9x60_idle);
+
+	soc_pm.ws_ids = sam9x60_ws_ids;
+	soc_pm.config_pmc_ws = at91_sam9x60_config_pmc_ws;
+}
+
 void __init at91sam9_pm_init(void)
 {
 	if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))
@@ -775,6 +844,10 @@
 
 	at91_pm_modes_init();
 	sama5_pm_init();
+
+	soc_pm.ws_ids = sama5d2_ws_ids;
+	soc_pm.config_shdwc_ws = at91_sama5d2_config_shdwc_ws;
+	soc_pm.config_pmc_ws = at91_sama5d2_config_pmc_ws;
 }
 
 static int __init at91_pm_modes_select(char *str)
@@ -795,8 +868,8 @@
 	if (suspend < 0)
 		return 0;
 
-	pm_data.standby_mode = standby;
-	pm_data.suspend_mode = suspend;
+	soc_pm.data.standby_mode = standby;
+	soc_pm.data.suspend_mode = suspend;
 
 	return 0;
 }
diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S
index bfe1c4d..77e2930 100644
--- a/arch/arm/mach-at91/pm_suspend.S
+++ b/arch/arm/mach-at91/pm_suspend.S
@@ -51,15 +51,6 @@
 	.endm
 
 /*
- * Wait until PLLA has locked.
- */
-	.macro wait_pllalock
-1:	ldr	tmp1, [pmc, #AT91_PMC_SR]
-	tst	tmp1, #AT91_PMC_LOCKA
-	beq	1b
-	.endm
-
-/*
  * Put the processor to enter the idle state
  */
 	.macro at91_cpu_idle
@@ -178,11 +169,46 @@
 	orr	tmp1, tmp1, #AT91_PMC_KEY
 	str	tmp1, [pmc, #AT91_CKGR_MOR]
 
+	/* Save RC oscillator state */
+	ldr	tmp1, [pmc, #AT91_PMC_SR]
+	str	tmp1, .saved_osc_status
+	tst	tmp1, #AT91_PMC_MOSCRCS
+	bne	1f
+
+	/* Turn off RC oscillator */
+	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
+	bic	tmp1, tmp1, #AT91_PMC_MOSCRCEN
+	bic	tmp1, tmp1, #AT91_PMC_KEY_MASK
+	orr	tmp1, tmp1, #AT91_PMC_KEY
+	str	tmp1, [pmc, #AT91_CKGR_MOR]
+
+	/* Wait main RC disabled done */
+2:	ldr	tmp1, [pmc, #AT91_PMC_SR]
+	tst	tmp1, #AT91_PMC_MOSCRCS
+	bne	2b
+
 	/* Wait for interrupt */
-	at91_cpu_idle
+1:	at91_cpu_idle
+
+	/* Restore RC oscillator state */
+	ldr	tmp1, .saved_osc_status
+	tst	tmp1, #AT91_PMC_MOSCRCS
+	beq	4f
+
+	/* Turn on RC oscillator */
+	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
+	orr	tmp1, tmp1, #AT91_PMC_MOSCRCEN
+	bic	tmp1, tmp1, #AT91_PMC_KEY_MASK
+	orr	tmp1, tmp1, #AT91_PMC_KEY
+	str	tmp1, [pmc, #AT91_CKGR_MOR]
+
+	/* Wait main RC stabilization */
+3:	ldr	tmp1, [pmc, #AT91_PMC_SR]
+	tst	tmp1, #AT91_PMC_MOSCRCS
+	beq	3b
 
 	/* Turn on the crystal oscillator */
-	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
+4:	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
 	orr	tmp1, tmp1, #AT91_PMC_MOSCEN
 	orr	tmp1, tmp1, #AT91_PMC_KEY
 	str	tmp1, [pmc, #AT91_CKGR_MOR]
@@ -197,8 +223,26 @@
 .macro at91_pm_ulp1_mode
 	ldr	pmc, .pmc_base
 
-	/* Switch the main clock source to 12-MHz RC oscillator */
+	/* Save RC oscillator state and check if it is enabled. */
+	ldr	tmp1, [pmc, #AT91_PMC_SR]
+	str	tmp1, .saved_osc_status
+	tst	tmp1, #AT91_PMC_MOSCRCS
+	bne	2f
+
+	/* Enable RC oscillator */
 	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
+	orr	tmp1, tmp1, #AT91_PMC_MOSCRCEN
+	bic	tmp1, tmp1, #AT91_PMC_KEY_MASK
+	orr	tmp1, tmp1, #AT91_PMC_KEY
+	str	tmp1, [pmc, #AT91_CKGR_MOR]
+
+	/* Wait main RC stabilization */
+1:	ldr	tmp1, [pmc, #AT91_PMC_SR]
+	tst	tmp1, #AT91_PMC_MOSCRCS
+	beq	1b
+
+	/* Switch the main clock source to 12-MHz RC oscillator */
+2:	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
 	bic	tmp1, tmp1, #AT91_PMC_MOSCSEL
 	bic	tmp1, tmp1, #AT91_PMC_KEY_MASK
 	orr	tmp1, tmp1, #AT91_PMC_KEY
@@ -262,6 +306,25 @@
 	str	tmp1, [pmc, #AT91_PMC_MCKR]
 
 	wait_mckrdy
+
+	/* Restore RC oscillator state */
+	ldr	tmp1, .saved_osc_status
+	tst	tmp1, #AT91_PMC_MOSCRCS
+	bne	3f
+
+	/* Disable RC oscillator */
+	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
+	bic	tmp1, tmp1, #AT91_PMC_MOSCRCEN
+	bic	tmp1, tmp1, #AT91_PMC_KEY_MASK
+	orr	tmp1, tmp1, #AT91_PMC_KEY
+	str	tmp1, [pmc, #AT91_CKGR_MOR]
+
+	/* Wait RC oscillator disable done */
+4:	ldr	tmp1, [pmc, #AT91_PMC_SR]
+	tst	tmp1, #AT91_PMC_MOSCRCS
+	bne	4b
+
+3:
 .endm
 
 ENTRY(at91_ulp_mode)
@@ -279,14 +342,6 @@
 
 	wait_mckrdy
 
-	/* Save PLLA setting and disable it */
-	ldr	tmp1, [pmc, #AT91_CKGR_PLLAR]
-	str	tmp1, .saved_pllar
-
-	mov	tmp1, #AT91_PMC_PLLCOUNT
-	orr	tmp1, tmp1, #(1 << 29)		/* bit 29 always set */
-	str	tmp1, [pmc, #AT91_CKGR_PLLAR]
-
 	ldr	r0, .pm_mode
 	cmp	r0, #AT91_PM_ULP1
 	beq	ulp1_mode
@@ -301,18 +356,6 @@
 ulp_exit:
 	ldr	pmc, .pmc_base
 
-	/* Restore PLLA setting */
-	ldr	tmp1, .saved_pllar
-	str	tmp1, [pmc, #AT91_CKGR_PLLAR]
-
-	tst	tmp1, #(AT91_PMC_MUL &  0xff0000)
-	bne	3f
-	tst	tmp1, #(AT91_PMC_MUL & ~0xff0000)
-	beq	4f
-3:
-	wait_pllalock
-4:
-
 	/*
 	 * Restore master clock setting
 	 */
@@ -465,8 +508,6 @@
 	.word 0
 .saved_mckr:
 	.word 0
-.saved_pllar:
-	.word 0
 .saved_sam9_lpr:
 	.word 0
 .saved_sam9_lpr1:
@@ -475,6 +516,8 @@
 	.word 0
 .saved_sam9_mdr1:
 	.word 0
+.saved_osc_status:
+	.word 0
 
 ENTRY(at91_pm_suspend_in_sram_sz)
 	.word .-at91_pm_suspend_in_sram
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index cc5f156..381f452 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -27,7 +27,6 @@
 #include <linux/cpu.h>
 #include <linux/pci.h>
 #include <linux/sched_clock.h>
-#include <linux/bitops.h>
 #include <linux/irqchip/irq-ixp4xx.h>
 #include <linux/platform_data/timer-ixp4xx.h>
 #include <mach/udc.h>
diff --git a/arch/arm/mach-mvebu/board-v7.c b/arch/arm/mach-mvebu/board-v7.c
index 0b10acd..d2df5ef 100644
--- a/arch/arm/mach-mvebu/board-v7.c
+++ b/arch/arm/mach-mvebu/board-v7.c
@@ -136,7 +136,6 @@
 
 		of_update_property(np, new_compat);
 	}
-	return;
 }
 
 static void __init mvebu_dt_init(void)
diff --git a/arch/arm/mach-mvebu/coherency_ll.S b/arch/arm/mach-mvebu/coherency_ll.S
index 8b2fbc8..2d962fe 100644
--- a/arch/arm/mach-mvebu/coherency_ll.S
+++ b/arch/arm/mach-mvebu/coherency_ll.S
@@ -66,7 +66,7 @@
  * fabric registers
  */
 ENTRY(ll_get_coherency_cpumask)
-	mrc	15, 0, r3, cr0, cr0, 5
+	mrc	p15, 0, r3, cr0, cr0, 5
 	and	r3, r3, #15
 	mov	r2, #(1 << 24)
 	lsl	r3, r2, r3
diff --git a/arch/arm/mach-mvebu/kirkwood.c b/arch/arm/mach-mvebu/kirkwood.c
index 9b5f4d6..ceaad6d 100644
--- a/arch/arm/mach-mvebu/kirkwood.c
+++ b/arch/arm/mach-mvebu/kirkwood.c
@@ -108,8 +108,6 @@
 		clk_prepare_enable(clk);
 
 		/* store MAC address register contents in local-mac-address */
-		pr_err(FW_INFO "%pOF: local-mac-address is not set\n", np);
-
 		pmac = kzalloc(sizeof(*pmac) + 6, GFP_KERNEL);
 		if (!pmac)
 			goto eth_fixup_no_mem;
diff --git a/arch/arm/mach-mvebu/pm-board.c b/arch/arm/mach-mvebu/pm-board.c
index db17121..0705525 100644
--- a/arch/arm/mach-mvebu/pm-board.c
+++ b/arch/arm/mach-mvebu/pm-board.c
@@ -79,7 +79,7 @@
 static int __init mvebu_armada_pm_init(void)
 {
 	struct device_node *np;
-	struct device_node *gpio_ctrl_np;
+	struct device_node *gpio_ctrl_np = NULL;
 	int ret = 0, i;
 
 	if (!of_machine_is_compatible("marvell,axp-gp"))
@@ -126,18 +126,23 @@
 			goto out;
 		}
 
+		if (gpio_ctrl_np)
+			of_node_put(gpio_ctrl_np);
 		gpio_ctrl_np = args.np;
 		pic_raw_gpios[i] = args.args[0];
 	}
 
 	gpio_ctrl = of_iomap(gpio_ctrl_np, 0);
-	if (!gpio_ctrl)
-		return -ENOMEM;
+	if (!gpio_ctrl) {
+		ret = -ENOMEM;
+		goto out;
+	}
 
 	mvebu_pm_suspend_init(mvebu_armada_pm_enter);
 
 out:
 	of_node_put(np);
+	of_node_put(gpio_ctrl_np);
 	return ret;
 }
 
diff --git a/arch/arm/mach-mvebu/pmsu_ll.S b/arch/arm/mach-mvebu/pmsu_ll.S
index 8865122..7aae9a2 100644
--- a/arch/arm/mach-mvebu/pmsu_ll.S
+++ b/arch/arm/mach-mvebu/pmsu_ll.S
@@ -16,7 +16,7 @@
 ENTRY(armada_38x_scu_power_up)
 	mrc     p15, 4, r1, c15, c0	@ get SCU base address
 	orr	r1, r1, #0x8		@ SCU CPU Power Status Register
-	mrc	15, 0, r0, cr0, cr0, 5	@ get the CPU ID
+	mrc	p15, 0, r0, cr0, cr0, 5	@ get the CPU ID
 	and	r0, r0, #15
 	add	r1, r1, r0
 	mov	r0, #0x0
@@ -56,7 +56,6 @@
 
 /* The following code will be executed from SRAM */
 ENTRY(mvebu_boot_wa_start)
-mvebu_boot_wa_start:
 ARM_BE8(setend	be)
 	adr	r0, 1f
 	ldr	r0, [r0]		@ load the address of the
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
index 1b15d59..b6e8141 100644
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -749,7 +749,7 @@
 				ARRAY_SIZE(ams_delta_gpio_tables));
 
 	leds_pdev = gpio_led_register_device(PLATFORM_DEVID_NONE, &leds_pdata);
-	if (!IS_ERR(leds_pdev)) {
+	if (!IS_ERR_OR_NULL(leds_pdev)) {
 		leds_gpio_table.dev_id = dev_name(&leds_pdev->dev);
 		gpiod_add_lookup_table(&leds_gpio_table);
 	}
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 0f4d918..42eca65 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -87,6 +87,11 @@
 config ARCH_K3
 	bool "Texas Instruments Inc. K3 multicore SoC architecture"
 	select PM_GENERIC_DOMAINS if PM
+	select MAILBOX
+	select TI_MESSAGE_MANAGER
+	select TI_SCI_PROTOCOL
+	select TI_SCI_INTR_IRQCHIP
+	select TI_SCI_INTA_IRQCHIP
 	help
 	  This enables support for Texas Instruments' K3 multicore SoC
 	  architecture.
@@ -215,6 +220,7 @@
 config ARCH_TEGRA
 	bool "NVIDIA Tegra SoC Family"
 	select ARCH_HAS_RESET_CONTROLLER
+	select ARM_GIC_PM
 	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select TIMER_OF
diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
index 75ee6cf..14d7fea 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
@@ -59,7 +59,7 @@
 	};
 
 	padctl@3520000 {
-		status = "okay";
+		status = "disabled";
 
 		avdd-pll-erefeut-supply = <&vdd_1v8_pll>;
 		avdd-usb-supply = <&vdd_3v3_sys>;
@@ -137,7 +137,7 @@
 	};
 
 	usb@3530000 {
-		status = "okay";
+		status = "disabled";
 
 		phys = <&{/padctl@3520000/pads/usb2/lanes/usb2-0}>,
 		       <&{/padctl@3520000/pads/usb2/lanes/usb2-1}>,
diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index f0bb6ce..426ac0b 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -60,6 +60,7 @@
 		clock-names = "master_bus", "slave_bus", "rx", "tx", "ptp_ref";
 		resets = <&bpmp TEGRA186_RESET_EQOS>;
 		reset-names = "eqos";
+		iommus = <&smmu TEGRA186_SID_EQOS>;
 		status = "disabled";
 
 		snps,write-requests = <1>;
@@ -338,6 +339,7 @@
 			 <&bpmp TEGRA186_RESET_HDA2CODEC_2X>;
 		reset-names = "hda", "hda2hdmi", "hda2codec_2x";
 		power-domains = <&bpmp TEGRA186_POWER_DOMAIN_DISP>;
+		iommus = <&smmu TEGRA186_SID_HDA>;
 		status = "disabled";
 	};
 
@@ -671,6 +673,10 @@
 			 <&bpmp TEGRA186_RESET_PCIEXCLK>;
 		reset-names = "afi", "pex", "pcie_x";
 
+		iommus = <&smmu TEGRA186_SID_AFI>;
+		iommu-map = <0x0 &smmu TEGRA186_SID_AFI 0x1000>;
+		iommu-map-mask = <0x0>;
+
 		status = "disabled";
 
 		pci@1,0 {
@@ -1158,6 +1164,7 @@
 
 	bpmp: bpmp {
 		compatible = "nvidia,tegra186-bpmp";
+		iommus = <&smmu TEGRA186_SID_BPMP>;
 		mboxes = <&hsp_top0 TEGRA_HSP_MBOX_TYPE_DB
 				    TEGRA_HSP_DB_MASTER_BPMP>;
 		shmem = <&cpu_bpmp_tx &cpu_bpmp_rx>;
diff --git a/arch/arm64/boot/dts/sprd/whale2.dtsi b/arch/arm64/boot/dts/sprd/whale2.dtsi
index eb6be56..4bb862c 100644
--- a/arch/arm64/boot/dts/sprd/whale2.dtsi
+++ b/arch/arm64/boot/dts/sprd/whale2.dtsi
@@ -75,7 +75,9 @@
 					     "sprd,sc9836-uart";
 				reg = <0x0 0x100>;
 				interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&ext_26m>;
+				clock-names = "enable", "uart", "source";
+				clocks = <&apapb_gate CLK_UART0_EB>,
+				       <&ap_clk CLK_UART0>, <&ext_26m>;
 				status = "disabled";
 			};
 
@@ -84,7 +86,9 @@
 					     "sprd,sc9836-uart";
 				reg = <0x100000 0x100>;
 				interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&ext_26m>;
+				clock-names = "enable", "uart", "source";
+				clocks = <&apapb_gate CLK_UART1_EB>,
+				       <&ap_clk CLK_UART1>, <&ext_26m>;
 				status = "disabled";
 			};
 
@@ -93,7 +97,9 @@
 					     "sprd,sc9836-uart";
 				reg = <0x200000 0x100>;
 				interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&ext_26m>;
+				clock-names = "enable", "uart", "source";
+				clocks = <&apapb_gate CLK_UART2_EB>,
+				       <&ap_clk CLK_UART2>, <&ext_26m>;
 				status = "disabled";
 			};
 
@@ -102,7 +108,9 @@
 					     "sprd,sc9836-uart";
 				reg = <0x300000 0x100>;
 				interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&ext_26m>;
+				clock-names = "enable", "uart", "source";
+				clocks = <&apapb_gate CLK_UART3_EB>,
+				       <&ap_clk CLK_UART3>, <&ext_26m>;
 				status = "disabled";
 			};
 		};
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 677e5bf..70d3200 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -674,7 +674,10 @@
 	select SYS_HAS_EARLY_PRINTK
 	select HAVE_PCI
 	select IRQ_MIPS_CPU
+	select IRQ_DOMAIN_HIERARCHY
 	select NR_CPUS_DEFAULT_64
+	select PCI_DRIVERS_GENERIC
+	select PCI_XTALK_BRIDGE
 	select SYS_HAS_CPU_R10000
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -1241,6 +1244,9 @@
 config PCI_GT64XXX_PCI0
 	bool
 
+config PCI_XTALK_BRIDGE
+	bool
+
 config NO_EXCEPT_FILL
 	bool
 
diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index 1454d9f..b8f3397 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -131,9 +131,7 @@
 }
 
 
-/* The dmamask must be set for OHCI/EHCI to work */
-static u64 alchemy_ohci_dmamask = DMA_BIT_MASK(32);
-static u64 __maybe_unused alchemy_ehci_dmamask = DMA_BIT_MASK(32);
+static u64 alchemy_all_dmamask = DMA_BIT_MASK(32);
 
 /* Power on callback for the ehci platform driver */
 static int alchemy_ehci_power_on(struct platform_device *pdev)
@@ -231,7 +229,7 @@
 	res[1].flags = IORESOURCE_IRQ;
 	pdev->name = "ohci-platform";
 	pdev->id = 0;
-	pdev->dev.dma_mask = &alchemy_ohci_dmamask;
+	pdev->dev.dma_mask = &alchemy_all_dmamask;
 	pdev->dev.platform_data = &alchemy_ohci_pdata;
 
 	if (platform_device_register(pdev))
@@ -251,7 +249,7 @@
 		res[1].flags = IORESOURCE_IRQ;
 		pdev->name = "ehci-platform";
 		pdev->id = 0;
-		pdev->dev.dma_mask = &alchemy_ehci_dmamask;
+		pdev->dev.dma_mask = &alchemy_all_dmamask;
 		pdev->dev.platform_data = &alchemy_ehci_pdata;
 
 		if (platform_device_register(pdev))
@@ -271,7 +269,7 @@
 		res[1].flags = IORESOURCE_IRQ;
 		pdev->name = "ohci-platform";
 		pdev->id = 1;
-		pdev->dev.dma_mask = &alchemy_ohci_dmamask;
+		pdev->dev.dma_mask = &alchemy_all_dmamask;
 		pdev->dev.platform_data = &alchemy_ohci_pdata;
 
 		if (platform_device_register(pdev))
@@ -338,7 +336,11 @@
 	.name		= "au1000-eth",
 	.id		= 0,
 	.num_resources	= MAC_RES_COUNT,
-	.dev.platform_data = &au1xxx_eth0_platform_data,
+	.dev = {
+		.dma_mask               = &alchemy_all_dmamask,
+		.coherent_dma_mask      = DMA_BIT_MASK(32),
+		.platform_data          = &au1xxx_eth0_platform_data,
+	},
 };
 
 static struct resource au1xxx_eth1_resources[][MAC_RES_COUNT] __initdata = {
@@ -370,7 +372,11 @@
 	.name		= "au1000-eth",
 	.id		= 1,
 	.num_resources	= MAC_RES_COUNT,
-	.dev.platform_data = &au1xxx_eth1_platform_data,
+	.dev = {
+		.dma_mask               = &alchemy_all_dmamask,
+		.coherent_dma_mask      = DMA_BIT_MASK(32),
+		.platform_data          = &au1xxx_eth1_platform_data,
+	},
 };
 
 void __init au1xxx_override_eth_cfg(unsigned int port,
diff --git a/arch/mips/generic/init.c b/arch/mips/generic/init.c
index a106f81..a84475f 100644
--- a/arch/mips/generic/init.c
+++ b/arch/mips/generic/init.c
@@ -43,14 +43,14 @@
 		/* Already set up */
 		return (void *)fdt;
 
-	if ((fw_arg0 == -2) && !fdt_check_header((void *)fw_arg1)) {
+	if ((fw_arg0 == -2) && !fdt_check_header((void *)fw_passed_dtb)) {
 		/*
 		 * We booted using the UHI boot protocol, so we have been
 		 * provided with the appropriate device tree for the board.
 		 * Make use of it & search for any machine struct based upon
 		 * the root compatible string.
 		 */
-		fdt = (void *)fw_arg1;
+		fdt = (void *)fw_passed_dtb;
 
 		for_each_mips_machine(check_mach) {
 			match = mips_machine_is_compatible(check_mach, fdt);
diff --git a/arch/mips/include/asm/mach-ip27/topology.h b/arch/mips/include/asm/mach-ip27/topology.h
index 42ea131..965f079 100644
--- a/arch/mips/include/asm/mach-ip27/topology.h
+++ b/arch/mips/include/asm/mach-ip27/topology.h
@@ -7,18 +7,9 @@
 #include <asm/mmzone.h>
 
 struct cpuinfo_ip27 {
-//	cpuid_t		p_cpuid;	/* PROM assigned cpuid */
 	cnodeid_t	p_nodeid;	/* my node ID in compact-id-space */
 	nasid_t		p_nasid;	/* my node ID in numa-as-id-space */
 	unsigned char	p_slice;	/* Physical position on node board */
-#if 0
-	unsigned long		loops_per_sec;
-	unsigned long		ipi_count;
-	unsigned long		irq_attempt[NR_IRQS];
-	unsigned long		smp_local_irq_count;
-	unsigned long		prof_multiplier;
-	unsigned long		prof_counter;
-#endif
 };
 
 extern struct cpuinfo_ip27 sn_cpu_info[NR_CPUS];
@@ -30,7 +21,7 @@
 struct pci_bus;
 extern int pcibus_to_node(struct pci_bus *);
 
-#define cpumask_of_pcibus(bus)	(cpu_online_mask)
+#define cpumask_of_pcibus(bus)	(cpumask_of_node(pcibus_to_node(bus)))
 
 extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES];
 
diff --git a/arch/mips/include/asm/pci/bridge.h b/arch/mips/include/asm/pci/bridge.h
index 23574c2..a92cd30 100644
--- a/arch/mips/include/asm/pci/bridge.h
+++ b/arch/mips/include/asm/pci/bridge.h
@@ -801,15 +801,13 @@
 #define PCI64_ATTR_RMF_SHFT	48
 
 struct bridge_controller {
-	struct pci_controller	pc;
-	struct resource		mem;
-	struct resource		io;
 	struct resource		busn;
 	struct bridge_regs	*base;
-	nasid_t			nasid;
-	unsigned int		widget_id;
-	u64			baddr;
+	unsigned long		baddr;
+	unsigned long		intr_addr;
+	struct irq_domain	*domain;
 	unsigned int		pci_int[8];
+	nasid_t			nasid;
 };
 
 #define BRIDGE_CONTROLLER(bus) \
@@ -822,8 +820,4 @@
 #define bridge_clr(bc, reg, val)	\
 	__raw_writel(__raw_readl(&bc->base->reg) & ~(val), &bc->base->reg)
 
-extern int request_bridge_irq(struct bridge_controller *bc, int pin);
-
-extern struct pci_ops bridge_pci_ops;
-
 #endif /* _ASM_PCI_BRIDGE_H */
diff --git a/arch/mips/include/asm/sn/irq_alloc.h b/arch/mips/include/asm/sn/irq_alloc.h
new file mode 100644
index 0000000..09b89ce
--- /dev/null
+++ b/arch/mips/include/asm/sn/irq_alloc.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_SN_IRQ_ALLOC_H
+#define __ASM_SN_IRQ_ALLOC_H
+
+struct irq_alloc_info {
+	void *ctrl;
+	nasid_t nasid;
+	int pin;
+};
+
+#endif /* __ASM_SN_IRQ_ALLOC_H */
diff --git a/arch/mips/include/asm/xtalk/xtalk.h b/arch/mips/include/asm/xtalk/xtalk.h
index 26d2ed1..680e7ef 100644
--- a/arch/mips/include/asm/xtalk/xtalk.h
+++ b/arch/mips/include/asm/xtalk/xtalk.h
@@ -47,15 +47,6 @@
 #define XIO_PORT(x)	((xwidgetnum_t)(((x)&XIO_PORT_BITS) >> XIO_PORT_SHIFT))
 #define XIO_PACK(p, o)	((((uint64_t)(p))<<XIO_PORT_SHIFT) | ((o)&XIO_ADDR_BITS))
 
-#ifdef CONFIG_PCI
-extern int bridge_probe(nasid_t nasid, int widget, int masterwid);
-#else
-static inline int bridge_probe(nasid_t nasid, int widget, int masterwid)
-{
-	return 0;
-}
-#endif
-
 #endif /* !__ASSEMBLY__ */
 
 #endif /* _ASM_XTALK_XTALK_H */
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index d5e335e..6126b77 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1973,6 +1973,14 @@
 		panic("Unknown Ingenic Processor ID!");
 		break;
 	}
+
+	/*
+	 * The config0 register in the Xburst CPUs with a processor ID of
+	 * PRID_COMP_INGENIC_D0 report themselves as MIPS32r2 compatible,
+	 * but they don't actually support this ISA.
+	 */
+	if ((c->processor_id & PRID_COMP_MASK) == PRID_COMP_INGENIC_D0)
+		c->isa_level &= ~MIPS_CPU_ISA_M32R2;
 }
 
 static inline void cpu_probe_netlogic(struct cpuinfo_mips *c, int cpu)
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index 4138635..d67fb64 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -64,17 +64,11 @@
 	#define CNTR_EVEN	0x55555555
 	#define CNTR_ODD	0xaaaaaaaa
 	#define CNTR_ALL	0xffffffff
-#ifdef CONFIG_MIPS_MT_SMP
 	enum {
 		T  = 0,
 		V  = 1,
 		P  = 2,
 	} range;
-#else
-	#define T
-	#define V
-	#define P
-#endif
 };
 
 static struct mips_perf_event raw_event;
@@ -325,9 +319,7 @@
 {
 	struct perf_event *event = container_of(evt, struct perf_event, hw);
 	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
-#ifdef CONFIG_MIPS_MT_SMP
 	unsigned int range = evt->event_base >> 24;
-#endif /* CONFIG_MIPS_MT_SMP */
 
 	WARN_ON(idx < 0 || idx >= mipspmu.num_counters);
 
@@ -336,21 +328,15 @@
 		/* Make sure interrupt enabled. */
 		MIPS_PERFCTRL_IE;
 
-#ifdef CONFIG_CPU_BMIPS5000
-	{
+	if (IS_ENABLED(CONFIG_CPU_BMIPS5000)) {
 		/* enable the counter for the calling thread */
 		cpuc->saved_ctrl[idx] |=
 			(1 << (12 + vpe_id())) | BRCM_PERFCTRL_TC;
-	}
-#else
-#ifdef CONFIG_MIPS_MT_SMP
-	if (range > V) {
+	} else if (IS_ENABLED(CONFIG_MIPS_MT_SMP) && range > V) {
 		/* The counter is processor wide. Set it up to count all TCs. */
 		pr_debug("Enabling perf counter for all TCs\n");
 		cpuc->saved_ctrl[idx] |= M_TC_EN_ALL;
-	} else
-#endif /* CONFIG_MIPS_MT_SMP */
-	{
+	} else {
 		unsigned int cpu, ctrl;
 
 		/*
@@ -365,7 +351,6 @@
 		cpuc->saved_ctrl[idx] |= ctrl;
 		pr_debug("Enabling perf counter for CPU%d\n", cpu);
 	}
-#endif /* CONFIG_CPU_BMIPS5000 */
 	/*
 	 * We do not actually let the counter run. Leave it until start().
 	 */
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile
index c4f97659..d6de4cb 100644
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -26,6 +26,7 @@
 obj-$(CONFIG_SOC_AR71XX)	+= pci-ar71xx.o
 obj-$(CONFIG_PCI_AR724X)	+= pci-ar724x.o
 obj-$(CONFIG_MIPS_PCI_VIRTIO)	+= pci-virtio-guest.o
+obj-$(CONFIG_PCI_XTALK_BRIDGE)	+= pci-xtalk-bridge.o
 #
 # These are still pretty much in the old state, watch, go blind.
 #
@@ -39,7 +40,7 @@
 obj-$(CONFIG_PMC_MSP7120_GW)	+= fixup-pmcmsp.o ops-pmcmsp.o
 obj-$(CONFIG_PMC_MSP7120_EVAL)	+= fixup-pmcmsp.o ops-pmcmsp.o
 obj-$(CONFIG_PMC_MSP7120_FPGA)	+= fixup-pmcmsp.o ops-pmcmsp.o
-obj-$(CONFIG_SGI_IP27)		+= ops-bridge.o pci-ip27.o
+obj-$(CONFIG_SGI_IP27)		+= pci-ip27.o
 obj-$(CONFIG_SGI_IP32)		+= fixup-ip32.o ops-mace.o pci-ip32.o
 obj-$(CONFIG_SIBYTE_SB1250)	+= fixup-sb1250.o pci-sb1250.o
 obj-$(CONFIG_SIBYTE_BCM112X)	+= fixup-sb1250.o pci-sb1250.o
diff --git a/arch/mips/pci/ops-bridge.c b/arch/mips/pci/ops-bridge.c
deleted file mode 100644
index df95b0d..0000000
--- a/arch/mips/pci/ops-bridge.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1999, 2000, 04, 06 Ralf Baechle (ralf@linux-mips.org)
- * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
- */
-#include <linux/pci.h>
-#include <asm/paccess.h>
-#include <asm/pci/bridge.h>
-#include <asm/sn/arch.h>
-#include <asm/sn/intr.h>
-#include <asm/sn/sn0/hub.h>
-
-/*
- * Most of the IOC3 PCI config register aren't present
- * we emulate what is needed for a normal PCI enumeration
- */
-static u32 emulate_ioc3_cfg(int where, int size)
-{
-	if (size == 1 && where == 0x3d)
-		return 0x01;
-	else if (size == 2 && where == 0x3c)
-		return 0x0100;
-	else if (size == 4 && where == 0x3c)
-		return 0x00000100;
-
-	return 0;
-}
-
-/*
- * The Bridge ASIC supports both type 0 and type 1 access.  Type 1 is
- * not really documented, so right now I can't write code which uses it.
- * Therefore we use type 0 accesses for now even though they won't work
- * correctly for PCI-to-PCI bridges.
- *
- * The function is complicated by the ultimate brokenness of the IOC3 chip
- * which is used in SGI systems.  The IOC3 can only handle 32-bit PCI
- * accesses and does only decode parts of it's address space.
- */
-
-static int pci_conf0_read_config(struct pci_bus *bus, unsigned int devfn,
-				 int where, int size, u32 * value)
-{
-	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
-	struct bridge_regs *bridge = bc->base;
-	int slot = PCI_SLOT(devfn);
-	int fn = PCI_FUNC(devfn);
-	volatile void *addr;
-	u32 cf, shift, mask;
-	int res;
-
-	addr = &bridge->b_type0_cfg_dev[slot].f[fn].c[PCI_VENDOR_ID];
-	if (get_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	/*
-	 * IOC3 is broken beyond belief ...  Don't even give the
-	 * generic PCI code a chance to look at it for real ...
-	 */
-	if (cf == (PCI_VENDOR_ID_SGI | (PCI_DEVICE_ID_SGI_IOC3 << 16)))
-		goto is_ioc3;
-
-	addr = &bridge->b_type0_cfg_dev[slot].f[fn].c[where ^ (4 - size)];
-
-	if (size == 1)
-		res = get_dbe(*value, (u8 *) addr);
-	else if (size == 2)
-		res = get_dbe(*value, (u16 *) addr);
-	else
-		res = get_dbe(*value, (u32 *) addr);
-
-	return res ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
-
-is_ioc3:
-
-	/*
-	 * IOC3 special handling
-	 */
-	if ((where >= 0x14 && where < 0x40) || (where >= 0x48)) {
-		*value = emulate_ioc3_cfg(where, size);
-		return PCIBIOS_SUCCESSFUL;
-	}
-
-	addr = &bridge->b_type0_cfg_dev[slot].f[fn].l[where >> 2];
-
-	if (get_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	shift = ((where & 3) << 3);
-	mask = (0xffffffffU >> ((4 - size) << 3));
-	*value = (cf >> shift) & mask;
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_conf1_read_config(struct pci_bus *bus, unsigned int devfn,
-				 int where, int size, u32 * value)
-{
-	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
-	struct bridge_regs *bridge = bc->base;
-	int busno = bus->number;
-	int slot = PCI_SLOT(devfn);
-	int fn = PCI_FUNC(devfn);
-	volatile void *addr;
-	u32 cf, shift, mask;
-	int res;
-
-	bridge_write(bc, b_pci_cfg, (busno << 16) | (slot << 11));
-	addr = &bridge->b_type1_cfg.c[(fn << 8) | PCI_VENDOR_ID];
-	if (get_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	/*
-	 * IOC3 is broken beyond belief ...  Don't even give the
-	 * generic PCI code a chance to look at it for real ...
-	 */
-	if (cf == (PCI_VENDOR_ID_SGI | (PCI_DEVICE_ID_SGI_IOC3 << 16)))
-		goto is_ioc3;
-
-	bridge_write(bc, b_pci_cfg, (busno << 16) | (slot << 11));
-	addr = &bridge->b_type1_cfg.c[(fn << 8) | (where ^ (4 - size))];
-
-	if (size == 1)
-		res = get_dbe(*value, (u8 *) addr);
-	else if (size == 2)
-		res = get_dbe(*value, (u16 *) addr);
-	else
-		res = get_dbe(*value, (u32 *) addr);
-
-	return res ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
-
-is_ioc3:
-
-	/*
-	 * IOC3 special handling
-	 */
-	if ((where >= 0x14 && where < 0x40) || (where >= 0x48)) {
-		*value = emulate_ioc3_cfg(where, size);
-		return PCIBIOS_SUCCESSFUL;
-	}
-
-	bridge_write(bc, b_pci_cfg, (busno << 16) | (slot << 11));
-	addr = &bridge->b_type1_cfg.c[(fn << 8) | where];
-
-	if (get_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	shift = ((where & 3) << 3);
-	mask = (0xffffffffU >> ((4 - size) << 3));
-	*value = (cf >> shift) & mask;
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_read_config(struct pci_bus *bus, unsigned int devfn,
-			   int where, int size, u32 * value)
-{
-	if (!pci_is_root_bus(bus))
-		return pci_conf1_read_config(bus, devfn, where, size, value);
-
-	return pci_conf0_read_config(bus, devfn, where, size, value);
-}
-
-static int pci_conf0_write_config(struct pci_bus *bus, unsigned int devfn,
-				  int where, int size, u32 value)
-{
-	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
-	struct bridge_regs *bridge = bc->base;
-	int slot = PCI_SLOT(devfn);
-	int fn = PCI_FUNC(devfn);
-	volatile void *addr;
-	u32 cf, shift, mask, smask;
-	int res;
-
-	addr = &bridge->b_type0_cfg_dev[slot].f[fn].c[PCI_VENDOR_ID];
-	if (get_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	/*
-	 * IOC3 is broken beyond belief ...  Don't even give the
-	 * generic PCI code a chance to look at it for real ...
-	 */
-	if (cf == (PCI_VENDOR_ID_SGI | (PCI_DEVICE_ID_SGI_IOC3 << 16)))
-		goto is_ioc3;
-
-	addr = &bridge->b_type0_cfg_dev[slot].f[fn].c[where ^ (4 - size)];
-
-	if (size == 1) {
-		res = put_dbe(value, (u8 *) addr);
-	} else if (size == 2) {
-		res = put_dbe(value, (u16 *) addr);
-	} else {
-		res = put_dbe(value, (u32 *) addr);
-	}
-
-	if (res)
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	return PCIBIOS_SUCCESSFUL;
-
-is_ioc3:
-
-	/*
-	 * IOC3 special handling
-	 */
-	if ((where >= 0x14 && where < 0x40) || (where >= 0x48))
-		return PCIBIOS_SUCCESSFUL;
-
-	addr = &bridge->b_type0_cfg_dev[slot].f[fn].l[where >> 2];
-
-	if (get_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	shift = ((where & 3) << 3);
-	mask = (0xffffffffU >> ((4 - size) << 3));
-	smask = mask << shift;
-
-	cf = (cf & ~smask) | ((value & mask) << shift);
-	if (put_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_conf1_write_config(struct pci_bus *bus, unsigned int devfn,
-				  int where, int size, u32 value)
-{
-	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
-	struct bridge_regs *bridge = bc->base;
-	int slot = PCI_SLOT(devfn);
-	int fn = PCI_FUNC(devfn);
-	int busno = bus->number;
-	volatile void *addr;
-	u32 cf, shift, mask, smask;
-	int res;
-
-	bridge_write(bc, b_pci_cfg, (busno << 16) | (slot << 11));
-	addr = &bridge->b_type1_cfg.c[(fn << 8) | PCI_VENDOR_ID];
-	if (get_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	/*
-	 * IOC3 is broken beyond belief ...  Don't even give the
-	 * generic PCI code a chance to look at it for real ...
-	 */
-	if (cf == (PCI_VENDOR_ID_SGI | (PCI_DEVICE_ID_SGI_IOC3 << 16)))
-		goto is_ioc3;
-
-	addr = &bridge->b_type1_cfg.c[(fn << 8) | (where ^ (4 - size))];
-
-	if (size == 1) {
-		res = put_dbe(value, (u8 *) addr);
-	} else if (size == 2) {
-		res = put_dbe(value, (u16 *) addr);
-	} else {
-		res = put_dbe(value, (u32 *) addr);
-	}
-
-	if (res)
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	return PCIBIOS_SUCCESSFUL;
-
-is_ioc3:
-
-	/*
-	 * IOC3 special handling
-	 */
-	if ((where >= 0x14 && where < 0x40) || (where >= 0x48))
-		return PCIBIOS_SUCCESSFUL;
-
-	addr = &bridge->b_type0_cfg_dev[slot].f[fn].l[where >> 2];
-
-	if (get_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	shift = ((where & 3) << 3);
-	mask = (0xffffffffU >> ((4 - size) << 3));
-	smask = mask << shift;
-
-	cf = (cf & ~smask) | ((value & mask) << shift);
-	if (put_dbe(cf, (u32 *) addr))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_write_config(struct pci_bus *bus, unsigned int devfn,
-	int where, int size, u32 value)
-{
-	if (!pci_is_root_bus(bus))
-		return pci_conf1_write_config(bus, devfn, where, size, value);
-
-	return pci_conf0_write_config(bus, devfn, where, size, value);
-}
-
-struct pci_ops bridge_pci_ops = {
-	.read	= pci_read_config,
-	.write	= pci_write_config,
-};
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c
index 3c177b4..441eb93 100644
--- a/arch/mips/pci/pci-ip27.c
+++ b/arch/mips/pci/pci-ip27.c
@@ -7,162 +7,7 @@
  * Copyright (C) 1999, 2000, 04 Ralf Baechle (ralf@linux-mips.org)
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  */
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/pci.h>
-#include <linux/smp.h>
-#include <linux/dma-direct.h>
-#include <asm/sn/arch.h>
 #include <asm/pci/bridge.h>
-#include <asm/paccess.h>
-#include <asm/sn/intr.h>
-#include <asm/sn/sn0/hub.h>
-
-/*
- * Max #PCI busses we can handle; ie, max #PCI bridges.
- */
-#define MAX_PCI_BUSSES		40
-
-/*
- * XXX: No kmalloc available when we do our crosstalk scan,
- *	we should try to move it later in the boot process.
- */
-static struct bridge_controller bridges[MAX_PCI_BUSSES];
-
-extern struct pci_ops bridge_pci_ops;
-
-int bridge_probe(nasid_t nasid, int widget_id, int masterwid)
-{
-	unsigned long offset = NODE_OFFSET(nasid);
-	struct bridge_controller *bc;
-	static int num_bridges = 0;
-	int slot;
-
-	pci_set_flags(PCI_PROBE_ONLY);
-
-	printk("a bridge\n");
-
-	/* XXX: kludge alert.. */
-	if (!num_bridges)
-		ioport_resource.end = ~0UL;
-
-	bc = &bridges[num_bridges];
-
-	bc->pc.pci_ops		= &bridge_pci_ops;
-	bc->pc.mem_resource	= &bc->mem;
-	bc->pc.io_resource	= &bc->io;
-
-	bc->pc.index		= num_bridges;
-
-	bc->mem.name		= "Bridge PCI MEM";
-	bc->pc.mem_offset	= offset;
-	bc->mem.start		= 0;
-	bc->mem.end		= ~0UL;
-	bc->mem.flags		= IORESOURCE_MEM;
-
-	bc->io.name		= "Bridge IO MEM";
-	bc->pc.io_offset	= offset;
-	bc->io.start		= 0UL;
-	bc->io.end		= ~0UL;
-	bc->io.flags		= IORESOURCE_IO;
-
-	bc->widget_id = widget_id;
-	bc->nasid = nasid;
-
-	bc->baddr = (u64)masterwid << 60 | PCI64_ATTR_BAR;
-
-	/*
-	 * point to this bridge
-	 */
-	bc->base = (struct bridge_regs *)RAW_NODE_SWIN_BASE(nasid, widget_id);
-
-	/*
-	 * Clear all pending interrupts.
-	 */
-	bridge_write(bc, b_int_rst_stat, BRIDGE_IRR_ALL_CLR);
-
-	/*
-	 * Until otherwise set up, assume all interrupts are from slot 0
-	 */
-	bridge_write(bc, b_int_device, 0x0);
-
-	/*
-	 * swap pio's to pci mem and io space (big windows)
-	 */
-	bridge_set(bc, b_wid_control, BRIDGE_CTRL_IO_SWAP |
-				      BRIDGE_CTRL_MEM_SWAP);
-#ifdef CONFIG_PAGE_SIZE_4KB
-	bridge_clr(bc, b_wid_control, BRIDGE_CTRL_PAGE_SIZE);
-#else /* 16kB or larger */
-	bridge_set(bc, b_wid_control, BRIDGE_CTRL_PAGE_SIZE);
-#endif
-
-	/*
-	 * Hmm...  IRIX sets additional bits in the address which
-	 * are documented as reserved in the bridge docs.
-	 */
-	bridge_write(bc, b_wid_int_upper, 0x8000 | (masterwid << 16));
-	bridge_write(bc, b_wid_int_lower, 0x01800090); /* PI_INT_PEND_MOD off*/
-	bridge_write(bc, b_dir_map, (masterwid << 20));	/* DMA */
-	bridge_write(bc, b_int_enable, 0);
-
-	for (slot = 0; slot < 8; slot ++) {
-		bridge_set(bc, b_device[slot].reg, BRIDGE_DEV_SWAP_DIR);
-		bc->pci_int[slot] = -1;
-	}
-	bridge_read(bc, b_wid_tflush);	  /* wait until Bridge PIO complete */
-
-	register_pci_controller(&bc->pc);
-
-	num_bridges++;
-
-	return 0;
-}
-
-/*
- * All observed requests have pin == 1. We could have a global here, that
- * gets incremented and returned every time - unfortunately, pci_map_irq
- * may be called on the same device over and over, and need to return the
- * same value. On O2000, pin can be 0 or 1, and PCI slots can be [0..7].
- *
- * A given PCI device, in general, should be able to intr any of the cpus
- * on any one of the hubs connected to its xbow.
- */
-int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-	return 0;
-}
-
-static inline struct pci_dev *bridge_root_dev(struct pci_dev *dev)
-{
-	while (dev->bus->parent) {
-		/* Move up the chain of bridges. */
-		dev = dev->bus->self;
-	}
-
-	return dev;
-}
-
-/* Do platform specific device initialization at pci_enable_device() time */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
-	struct bridge_controller *bc = BRIDGE_CONTROLLER(dev->bus);
-	struct pci_dev *rdev = bridge_root_dev(dev);
-	int slot = PCI_SLOT(rdev->devfn);
-	int irq;
-
-	irq = bc->pci_int[slot];
-	if (irq == -1) {
-		irq = request_bridge_irq(bc, slot);
-		if (irq < 0)
-			return irq;
-
-		bc->pci_int[slot] = irq;
-	}
-	dev->irq = irq;
-
-	return 0;
-}
 
 dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
@@ -177,29 +22,6 @@
 	return dma_addr & ~(0xffUL << 56);
 }
 
-/*
- * Device might live on a subordinate PCI bus.	XXX Walk up the chain of buses
- * to find the slot number in sense of the bridge device register.
- * XXX This also means multiple devices might rely on conflicting bridge
- * settings.
- */
-
-static inline void pci_disable_swapping(struct pci_dev *dev)
-{
-	struct bridge_controller *bc = BRIDGE_CONTROLLER(dev->bus);
-	struct bridge_regs *bridge = bc->base;
-	int slot = PCI_SLOT(dev->devfn);
-
-	/* Turn off byte swapping */
-	bridge->b_device[slot].reg &= ~BRIDGE_DEV_SWAP_DIR;
-	bridge->b_widget.w_tflush;	/* Flush */
-}
-
-static void pci_fixup_ioc3(struct pci_dev *d)
-{
-	pci_disable_swapping(d);
-}
-
 #ifdef CONFIG_NUMA
 int pcibus_to_node(struct pci_bus *bus)
 {
@@ -209,6 +31,3 @@
 }
 EXPORT_SYMBOL(pcibus_to_node);
 #endif /* CONFIG_NUMA */
-
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SGI, PCI_DEVICE_ID_SGI_IOC3,
-	pci_fixup_ioc3);
diff --git a/arch/mips/pci/pci-xtalk-bridge.c b/arch/mips/pci/pci-xtalk-bridge.c
new file mode 100644
index 0000000..bcf7f55
--- /dev/null
+++ b/arch/mips/pci/pci-xtalk-bridge.c
@@ -0,0 +1,610 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2003 Christoph Hellwig (hch@lst.de)
+ * Copyright (C) 1999, 2000, 04 Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ */
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/pci.h>
+#include <linux/smp.h>
+#include <linux/dma-direct.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/xtalk-bridge.h>
+
+#include <asm/pci/bridge.h>
+#include <asm/paccess.h>
+#include <asm/sn/irq_alloc.h>
+
+/*
+ * Most of the IOC3 PCI config register aren't present
+ * we emulate what is needed for a normal PCI enumeration
+ */
+static u32 emulate_ioc3_cfg(int where, int size)
+{
+	if (size == 1 && where == 0x3d)
+		return 0x01;
+	else if (size == 2 && where == 0x3c)
+		return 0x0100;
+	else if (size == 4 && where == 0x3c)
+		return 0x00000100;
+
+	return 0;
+}
+
+static void bridge_disable_swapping(struct pci_dev *dev)
+{
+	struct bridge_controller *bc = BRIDGE_CONTROLLER(dev->bus);
+	int slot = PCI_SLOT(dev->devfn);
+
+	/* Turn off byte swapping */
+	bridge_clr(bc, b_device[slot].reg, BRIDGE_DEV_SWAP_DIR);
+	bridge_read(bc, b_widget.w_tflush);	/* Flush */
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SGI, PCI_DEVICE_ID_SGI_IOC3,
+	bridge_disable_swapping);
+
+
+/*
+ * The Bridge ASIC supports both type 0 and type 1 access.  Type 1 is
+ * not really documented, so right now I can't write code which uses it.
+ * Therefore we use type 0 accesses for now even though they won't work
+ * correctly for PCI-to-PCI bridges.
+ *
+ * The function is complicated by the ultimate brokenness of the IOC3 chip
+ * which is used in SGI systems.  The IOC3 can only handle 32-bit PCI
+ * accesses and does only decode parts of it's address space.
+ */
+static int pci_conf0_read_config(struct pci_bus *bus, unsigned int devfn,
+				 int where, int size, u32 *value)
+{
+	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
+	struct bridge_regs *bridge = bc->base;
+	int slot = PCI_SLOT(devfn);
+	int fn = PCI_FUNC(devfn);
+	void *addr;
+	u32 cf, shift, mask;
+	int res;
+
+	addr = &bridge->b_type0_cfg_dev[slot].f[fn].c[PCI_VENDOR_ID];
+	if (get_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	/*
+	 * IOC3 is broken beyond belief ...  Don't even give the
+	 * generic PCI code a chance to look at it for real ...
+	 */
+	if (cf == (PCI_VENDOR_ID_SGI | (PCI_DEVICE_ID_SGI_IOC3 << 16)))
+		goto is_ioc3;
+
+	addr = &bridge->b_type0_cfg_dev[slot].f[fn].c[where ^ (4 - size)];
+
+	if (size == 1)
+		res = get_dbe(*value, (u8 *)addr);
+	else if (size == 2)
+		res = get_dbe(*value, (u16 *)addr);
+	else
+		res = get_dbe(*value, (u32 *)addr);
+
+	return res ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+
+is_ioc3:
+
+	/*
+	 * IOC3 special handling
+	 */
+	if ((where >= 0x14 && where < 0x40) || (where >= 0x48)) {
+		*value = emulate_ioc3_cfg(where, size);
+		return PCIBIOS_SUCCESSFUL;
+	}
+
+	addr = &bridge->b_type0_cfg_dev[slot].f[fn].l[where >> 2];
+	if (get_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	shift = ((where & 3) << 3);
+	mask = (0xffffffffU >> ((4 - size) << 3));
+	*value = (cf >> shift) & mask;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int pci_conf1_read_config(struct pci_bus *bus, unsigned int devfn,
+				 int where, int size, u32 *value)
+{
+	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
+	struct bridge_regs *bridge = bc->base;
+	int busno = bus->number;
+	int slot = PCI_SLOT(devfn);
+	int fn = PCI_FUNC(devfn);
+	void *addr;
+	u32 cf, shift, mask;
+	int res;
+
+	bridge_write(bc, b_pci_cfg, (busno << 16) | (slot << 11));
+	addr = &bridge->b_type1_cfg.c[(fn << 8) | PCI_VENDOR_ID];
+	if (get_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	/*
+	 * IOC3 is broken beyond belief ...  Don't even give the
+	 * generic PCI code a chance to look at it for real ...
+	 */
+	if (cf == (PCI_VENDOR_ID_SGI | (PCI_DEVICE_ID_SGI_IOC3 << 16)))
+		goto is_ioc3;
+
+	addr = &bridge->b_type1_cfg.c[(fn << 8) | (where ^ (4 - size))];
+
+	if (size == 1)
+		res = get_dbe(*value, (u8 *)addr);
+	else if (size == 2)
+		res = get_dbe(*value, (u16 *)addr);
+	else
+		res = get_dbe(*value, (u32 *)addr);
+
+	return res ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+
+is_ioc3:
+
+	/*
+	 * IOC3 special handling
+	 */
+	if ((where >= 0x14 && where < 0x40) || (where >= 0x48)) {
+		*value = emulate_ioc3_cfg(where, size);
+		return PCIBIOS_SUCCESSFUL;
+	}
+
+	addr = &bridge->b_type1_cfg.c[(fn << 8) | where];
+	if (get_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	shift = ((where & 3) << 3);
+	mask = (0xffffffffU >> ((4 - size) << 3));
+	*value = (cf >> shift) & mask;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int pci_read_config(struct pci_bus *bus, unsigned int devfn,
+			   int where, int size, u32 *value)
+{
+	if (!pci_is_root_bus(bus))
+		return pci_conf1_read_config(bus, devfn, where, size, value);
+
+	return pci_conf0_read_config(bus, devfn, where, size, value);
+}
+
+static int pci_conf0_write_config(struct pci_bus *bus, unsigned int devfn,
+				  int where, int size, u32 value)
+{
+	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
+	struct bridge_regs *bridge = bc->base;
+	int slot = PCI_SLOT(devfn);
+	int fn = PCI_FUNC(devfn);
+	void *addr;
+	u32 cf, shift, mask, smask;
+	int res;
+
+	addr = &bridge->b_type0_cfg_dev[slot].f[fn].c[PCI_VENDOR_ID];
+	if (get_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	/*
+	 * IOC3 is broken beyond belief ...  Don't even give the
+	 * generic PCI code a chance to look at it for real ...
+	 */
+	if (cf == (PCI_VENDOR_ID_SGI | (PCI_DEVICE_ID_SGI_IOC3 << 16)))
+		goto is_ioc3;
+
+	addr = &bridge->b_type0_cfg_dev[slot].f[fn].c[where ^ (4 - size)];
+
+	if (size == 1)
+		res = put_dbe(value, (u8 *)addr);
+	else if (size == 2)
+		res = put_dbe(value, (u16 *)addr);
+	else
+		res = put_dbe(value, (u32 *)addr);
+
+	if (res)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	return PCIBIOS_SUCCESSFUL;
+
+is_ioc3:
+
+	/*
+	 * IOC3 special handling
+	 */
+	if ((where >= 0x14 && where < 0x40) || (where >= 0x48))
+		return PCIBIOS_SUCCESSFUL;
+
+	addr = &bridge->b_type0_cfg_dev[slot].f[fn].l[where >> 2];
+
+	if (get_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	shift = ((where & 3) << 3);
+	mask = (0xffffffffU >> ((4 - size) << 3));
+	smask = mask << shift;
+
+	cf = (cf & ~smask) | ((value & mask) << shift);
+	if (put_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int pci_conf1_write_config(struct pci_bus *bus, unsigned int devfn,
+				  int where, int size, u32 value)
+{
+	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
+	struct bridge_regs *bridge = bc->base;
+	int slot = PCI_SLOT(devfn);
+	int fn = PCI_FUNC(devfn);
+	int busno = bus->number;
+	void *addr;
+	u32 cf, shift, mask, smask;
+	int res;
+
+	bridge_write(bc, b_pci_cfg, (busno << 16) | (slot << 11));
+	addr = &bridge->b_type1_cfg.c[(fn << 8) | PCI_VENDOR_ID];
+	if (get_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	/*
+	 * IOC3 is broken beyond belief ...  Don't even give the
+	 * generic PCI code a chance to look at it for real ...
+	 */
+	if (cf == (PCI_VENDOR_ID_SGI | (PCI_DEVICE_ID_SGI_IOC3 << 16)))
+		goto is_ioc3;
+
+	addr = &bridge->b_type1_cfg.c[(fn << 8) | (where ^ (4 - size))];
+
+	if (size == 1)
+		res = put_dbe(value, (u8 *)addr);
+	else if (size == 2)
+		res = put_dbe(value, (u16 *)addr);
+	else
+		res = put_dbe(value, (u32 *)addr);
+
+	if (res)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	return PCIBIOS_SUCCESSFUL;
+
+is_ioc3:
+
+	/*
+	 * IOC3 special handling
+	 */
+	if ((where >= 0x14 && where < 0x40) || (where >= 0x48))
+		return PCIBIOS_SUCCESSFUL;
+
+	addr = &bridge->b_type0_cfg_dev[slot].f[fn].l[where >> 2];
+	if (get_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	shift = ((where & 3) << 3);
+	mask = (0xffffffffU >> ((4 - size) << 3));
+	smask = mask << shift;
+
+	cf = (cf & ~smask) | ((value & mask) << shift);
+	if (put_dbe(cf, (u32 *)addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int pci_write_config(struct pci_bus *bus, unsigned int devfn,
+	int where, int size, u32 value)
+{
+	if (!pci_is_root_bus(bus))
+		return pci_conf1_write_config(bus, devfn, where, size, value);
+
+	return pci_conf0_write_config(bus, devfn, where, size, value);
+}
+
+static struct pci_ops bridge_pci_ops = {
+	.read	 = pci_read_config,
+	.write	 = pci_write_config,
+};
+
+struct bridge_irq_chip_data {
+	struct bridge_controller *bc;
+	nasid_t nasid;
+};
+
+static int bridge_set_affinity(struct irq_data *d, const struct cpumask *mask,
+			       bool force)
+{
+#ifdef CONFIG_NUMA
+	struct bridge_irq_chip_data *data = d->chip_data;
+	int bit = d->parent_data->hwirq;
+	int pin = d->hwirq;
+	nasid_t nasid;
+	int ret, cpu;
+
+	ret = irq_chip_set_affinity_parent(d, mask, force);
+	if (ret >= 0) {
+		cpu = cpumask_first_and(mask, cpu_online_mask);
+		nasid = COMPACT_TO_NASID_NODEID(cpu_to_node(cpu));
+		bridge_write(data->bc, b_int_addr[pin].addr,
+			     (((data->bc->intr_addr >> 30) & 0x30000) |
+			      bit | (nasid << 8)));
+		bridge_read(data->bc, b_wid_tflush);
+	}
+	return ret;
+#else
+	return irq_chip_set_affinity_parent(d, mask, force);
+#endif
+}
+
+struct irq_chip bridge_irq_chip = {
+	.name             = "BRIDGE",
+	.irq_mask         = irq_chip_mask_parent,
+	.irq_unmask       = irq_chip_unmask_parent,
+	.irq_set_affinity = bridge_set_affinity
+};
+
+static int bridge_domain_alloc(struct irq_domain *domain, unsigned int virq,
+			       unsigned int nr_irqs, void *arg)
+{
+	struct bridge_irq_chip_data *data;
+	struct irq_alloc_info *info = arg;
+	int ret;
+
+	if (nr_irqs > 1 || !info)
+		return -EINVAL;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	ret = irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, arg);
+	if (ret >= 0) {
+		data->bc = info->ctrl;
+		data->nasid = info->nasid;
+		irq_domain_set_info(domain, virq, info->pin, &bridge_irq_chip,
+				    data, handle_level_irq, NULL, NULL);
+	} else {
+		kfree(data);
+	}
+
+	return ret;
+}
+
+static void bridge_domain_free(struct irq_domain *domain, unsigned int virq,
+			       unsigned int nr_irqs)
+{
+	struct irq_data *irqd = irq_domain_get_irq_data(domain, virq);
+
+	if (nr_irqs)
+		return;
+
+	kfree(irqd->chip_data);
+	irq_domain_free_irqs_top(domain, virq, nr_irqs);
+}
+
+static int bridge_domain_activate(struct irq_domain *domain,
+				  struct irq_data *irqd, bool reserve)
+{
+	struct bridge_irq_chip_data *data = irqd->chip_data;
+	struct bridge_controller *bc = data->bc;
+	int bit = irqd->parent_data->hwirq;
+	int pin = irqd->hwirq;
+	u32 device;
+
+	bridge_write(bc, b_int_addr[pin].addr,
+		     (((bc->intr_addr >> 30) & 0x30000) |
+		      bit | (data->nasid << 8)));
+	bridge_set(bc, b_int_enable, (1 << pin));
+	bridge_set(bc, b_int_enable, 0x7ffffe00); /* more stuff in int_enable */
+
+	/*
+	 * Enable sending of an interrupt clear packt to the hub on a high to
+	 * low transition of the interrupt pin.
+	 *
+	 * IRIX sets additional bits in the address which are documented as
+	 * reserved in the bridge docs.
+	 */
+	bridge_set(bc, b_int_mode, (1UL << pin));
+
+	/*
+	 * We assume the bridge to have a 1:1 mapping between devices
+	 * (slots) and intr pins.
+	 */
+	device = bridge_read(bc, b_int_device);
+	device &= ~(7 << (pin*3));
+	device |= (pin << (pin*3));
+	bridge_write(bc, b_int_device, device);
+
+	bridge_read(bc, b_wid_tflush);
+	return 0;
+}
+
+static void bridge_domain_deactivate(struct irq_domain *domain,
+				     struct irq_data *irqd)
+{
+	struct bridge_irq_chip_data *data = irqd->chip_data;
+
+	bridge_clr(data->bc, b_int_enable, (1 << irqd->hwirq));
+	bridge_read(data->bc, b_wid_tflush);
+}
+
+static const struct irq_domain_ops bridge_domain_ops = {
+	.alloc      = bridge_domain_alloc,
+	.free       = bridge_domain_free,
+	.activate   = bridge_domain_activate,
+	.deactivate = bridge_domain_deactivate
+};
+
+/*
+ * All observed requests have pin == 1. We could have a global here, that
+ * gets incremented and returned every time - unfortunately, pci_map_irq
+ * may be called on the same device over and over, and need to return the
+ * same value. On O2000, pin can be 0 or 1, and PCI slots can be [0..7].
+ *
+ * A given PCI device, in general, should be able to intr any of the cpus
+ * on any one of the hubs connected to its xbow.
+ */
+static int bridge_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	struct bridge_controller *bc = BRIDGE_CONTROLLER(dev->bus);
+	struct irq_alloc_info info;
+	int irq;
+
+	irq = bc->pci_int[slot];
+	if (irq == -1) {
+		info.ctrl = bc;
+		info.nasid = bc->nasid;
+		info.pin = slot;
+
+		irq = irq_domain_alloc_irqs(bc->domain, 1, bc->nasid, &info);
+		if (irq < 0)
+			return irq;
+
+		bc->pci_int[slot] = irq;
+	}
+	return irq;
+}
+
+static int bridge_probe(struct platform_device *pdev)
+{
+	struct xtalk_bridge_platform_data *bd = dev_get_platdata(&pdev->dev);
+	struct device *dev = &pdev->dev;
+	struct bridge_controller *bc;
+	struct pci_host_bridge *host;
+	struct irq_domain *domain, *parent;
+	struct fwnode_handle *fn;
+	int slot;
+	int err;
+
+	parent = irq_get_default_host();
+	if (!parent)
+		return -ENODEV;
+	fn = irq_domain_alloc_named_fwnode("BRIDGE");
+	if (!fn)
+		return -ENOMEM;
+	domain = irq_domain_create_hierarchy(parent, 0, 8, fn,
+					     &bridge_domain_ops, NULL);
+	irq_domain_free_fwnode(fn);
+	if (!domain)
+		return -ENOMEM;
+
+	pci_set_flags(PCI_PROBE_ONLY);
+
+	host = devm_pci_alloc_host_bridge(dev, sizeof(*bc));
+	if (!host) {
+		err = -ENOMEM;
+		goto err_remove_domain;
+	}
+
+	bc = pci_host_bridge_priv(host);
+
+	bc->busn.name		= "Bridge PCI busn";
+	bc->busn.start		= 0;
+	bc->busn.end		= 0xff;
+	bc->busn.flags		= IORESOURCE_BUS;
+
+	bc->domain		= domain;
+
+	pci_add_resource_offset(&host->windows, &bd->mem, bd->mem_offset);
+	pci_add_resource_offset(&host->windows, &bd->io, bd->io_offset);
+	pci_add_resource(&host->windows, &bc->busn);
+
+	err = devm_request_pci_bus_resources(dev, &host->windows);
+	if (err < 0)
+		goto err_free_resource;
+
+	bc->nasid = bd->nasid;
+
+	bc->baddr = (u64)bd->masterwid << 60 | PCI64_ATTR_BAR;
+	bc->base = (struct bridge_regs *)bd->bridge_addr;
+	bc->intr_addr = bd->intr_addr;
+
+	/*
+	 * Clear all pending interrupts.
+	 */
+	bridge_write(bc, b_int_rst_stat, BRIDGE_IRR_ALL_CLR);
+
+	/*
+	 * Until otherwise set up, assume all interrupts are from slot 0
+	 */
+	bridge_write(bc, b_int_device, 0x0);
+
+	/*
+	 * disable swapping for big windows
+	 */
+	bridge_clr(bc, b_wid_control,
+		   BRIDGE_CTRL_IO_SWAP | BRIDGE_CTRL_MEM_SWAP);
+#ifdef CONFIG_PAGE_SIZE_4KB
+	bridge_clr(bc, b_wid_control, BRIDGE_CTRL_PAGE_SIZE);
+#else /* 16kB or larger */
+	bridge_set(bc, b_wid_control, BRIDGE_CTRL_PAGE_SIZE);
+#endif
+
+	/*
+	 * Hmm...  IRIX sets additional bits in the address which
+	 * are documented as reserved in the bridge docs.
+	 */
+	bridge_write(bc, b_wid_int_upper,
+		     ((bc->intr_addr >> 32) & 0xffff) | (bd->masterwid << 16));
+	bridge_write(bc, b_wid_int_lower, bc->intr_addr & 0xffffffff);
+	bridge_write(bc, b_dir_map, (bd->masterwid << 20));	/* DMA */
+	bridge_write(bc, b_int_enable, 0);
+
+	for (slot = 0; slot < 8; slot++) {
+		bridge_set(bc, b_device[slot].reg, BRIDGE_DEV_SWAP_DIR);
+		bc->pci_int[slot] = -1;
+	}
+	bridge_read(bc, b_wid_tflush);	  /* wait until Bridge PIO complete */
+
+	host->dev.parent = dev;
+	host->sysdata = bc;
+	host->busnr = 0;
+	host->ops = &bridge_pci_ops;
+	host->map_irq = bridge_map_irq;
+	host->swizzle_irq = pci_common_swizzle;
+
+	err = pci_scan_root_bus_bridge(host);
+	if (err < 0)
+		goto err_free_resource;
+
+	pci_bus_claim_resources(host->bus);
+	pci_bus_add_devices(host->bus);
+
+	platform_set_drvdata(pdev, host->bus);
+
+	return 0;
+
+err_free_resource:
+	pci_free_resource_list(&host->windows);
+err_remove_domain:
+	irq_domain_remove(domain);
+	return err;
+}
+
+static int bridge_remove(struct platform_device *pdev)
+{
+	struct pci_bus *bus = platform_get_drvdata(pdev);
+	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
+
+	irq_domain_remove(bc->domain);
+	pci_lock_rescan_remove();
+	pci_stop_root_bus(bus);
+	pci_remove_root_bus(bus);
+	pci_unlock_rescan_remove();
+
+	return 0;
+}
+
+static struct platform_driver bridge_driver = {
+	.probe  = bridge_probe,
+	.remove = bridge_remove,
+	.driver = {
+		.name = "xtalk-bridge",
+	}
+};
+
+builtin_platform_driver(bridge_driver);
diff --git a/arch/mips/sgi-ip22/ip22-platform.c b/arch/mips/sgi-ip22/ip22-platform.c
index 37ad267..0b2002e 100644
--- a/arch/mips/sgi-ip22/ip22-platform.c
+++ b/arch/mips/sgi-ip22/ip22-platform.c
@@ -3,6 +3,7 @@
 #include <linux/if_ether.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/paccess.h>
 #include <asm/sgi/ip22.h>
@@ -25,6 +26,8 @@
 	.irq	= SGI_WD93_0_IRQ,
 };
 
+static u64 sgiwd93_0_dma_mask = DMA_BIT_MASK(32);
+
 static struct platform_device sgiwd93_0_device = {
 	.name		= "sgiwd93",
 	.id		= 0,
@@ -32,6 +35,8 @@
 	.resource	= sgiwd93_0_resources,
 	.dev = {
 		.platform_data = &sgiwd93_0_pd,
+		.dma_mask = &sgiwd93_0_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
 	},
 };
 
@@ -49,6 +54,8 @@
 	.irq	= SGI_WD93_1_IRQ,
 };
 
+static u64 sgiwd93_1_dma_mask = DMA_BIT_MASK(32);
+
 static struct platform_device sgiwd93_1_device = {
 	.name		= "sgiwd93",
 	.id		= 1,
@@ -56,6 +63,8 @@
 	.resource	= sgiwd93_1_resources,
 	.dev = {
 		.platform_data = &sgiwd93_1_pd,
+		.dma_mask = &sgiwd93_1_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
 	},
 };
 
@@ -96,6 +105,8 @@
 
 static struct sgiseeq_platform_data eth0_pd;
 
+static u64 sgiseeq_dma_mask = DMA_BIT_MASK(32);
+
 static struct platform_device eth0_device = {
 	.name		= "sgiseeq",
 	.id		= 0,
@@ -103,6 +114,8 @@
 	.resource	= sgiseeq_0_resources,
 	.dev = {
 		.platform_data = &eth0_pd,
+		.dma_mask = &sgiseeq_dma_mask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
 	},
 };
 
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index 6074efe..066b33f5 100644
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@ -184,5 +184,7 @@
 
 	ioc3_eth_init();
 
+	ioport_resource.start = 0;
+	ioport_resource.end = ~0UL;
 	set_io_port_base(IO_BASE);
 }
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index a32f843..37be049 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -12,22 +12,20 @@
 #include <linux/ioport.h>
 #include <linux/kernel.h>
 #include <linux/bitops.h>
+#include <linux/sched.h>
 
 #include <asm/io.h>
 #include <asm/irq_cpu.h>
-#include <asm/pci/bridge.h>
 #include <asm/sn/addrs.h>
 #include <asm/sn/agent.h>
 #include <asm/sn/arch.h>
 #include <asm/sn/hub.h>
 #include <asm/sn/intr.h>
+#include <asm/sn/irq_alloc.h>
 
 struct hub_irq_data {
-	struct bridge_controller *bc;
 	u64	*irq_mask[2];
 	cpuid_t	cpu;
-	int	bit;
-	int	pin;
 };
 
 static DECLARE_BITMAP(hub_irq_map, IP27_HUB_IRQ_COUNT);
@@ -54,7 +52,7 @@
 	struct hub_irq_data *hd = irq_data_get_irq_chip_data(d);
 	unsigned long *mask = per_cpu(irq_enable_mask, hd->cpu);
 
-	set_bit(hd->bit, mask);
+	set_bit(d->hwirq, mask);
 	__raw_writeq(mask[0], hd->irq_mask[0]);
 	__raw_writeq(mask[1], hd->irq_mask[1]);
 }
@@ -64,71 +62,11 @@
 	struct hub_irq_data *hd = irq_data_get_irq_chip_data(d);
 	unsigned long *mask = per_cpu(irq_enable_mask, hd->cpu);
 
-	clear_bit(hd->bit, mask);
+	clear_bit(d->hwirq, mask);
 	__raw_writeq(mask[0], hd->irq_mask[0]);
 	__raw_writeq(mask[1], hd->irq_mask[1]);
 }
 
-static unsigned int startup_bridge_irq(struct irq_data *d)
-{
-	struct hub_irq_data *hd = irq_data_get_irq_chip_data(d);
-	struct bridge_controller *bc;
-	nasid_t nasid;
-	u32 device;
-	int pin;
-
-	if (!hd)
-		return -EINVAL;
-
-	pin = hd->pin;
-	bc = hd->bc;
-
-	nasid = COMPACT_TO_NASID_NODEID(cpu_to_node(hd->cpu));
-	bridge_write(bc, b_int_addr[pin].addr,
-		     (0x20000 | hd->bit | (nasid << 8)));
-	bridge_set(bc, b_int_enable, (1 << pin));
-	bridge_set(bc, b_int_enable, 0x7ffffe00); /* more stuff in int_enable */
-
-	/*
-	 * Enable sending of an interrupt clear packt to the hub on a high to
-	 * low transition of the interrupt pin.
-	 *
-	 * IRIX sets additional bits in the address which are documented as
-	 * reserved in the bridge docs.
-	 */
-	bridge_set(bc, b_int_mode, (1UL << pin));
-
-	/*
-	 * We assume the bridge to have a 1:1 mapping between devices
-	 * (slots) and intr pins.
-	 */
-	device = bridge_read(bc, b_int_device);
-	device &= ~(7 << (pin*3));
-	device |= (pin << (pin*3));
-	bridge_write(bc, b_int_device, device);
-
-	bridge_read(bc, b_wid_tflush);
-
-	enable_hub_irq(d);
-
-	return 0;	/* Never anything pending.  */
-}
-
-static void shutdown_bridge_irq(struct irq_data *d)
-{
-	struct hub_irq_data *hd = irq_data_get_irq_chip_data(d);
-	struct bridge_controller *bc;
-
-	if (!hd)
-		return;
-
-	disable_hub_irq(d);
-
-	bc = hd->bc;
-	bridge_clr(bc, b_int_enable, (1 << hd->pin));
-	bridge_read(bc, b_wid_tflush);
-}
-
 static void setup_hub_mask(struct hub_irq_data *hd, const struct cpumask *mask)
 {
 	nasid_t nasid;
@@ -144,9 +82,6 @@
 		hd->irq_mask[0] = REMOTE_HUB_PTR(nasid, PI_INT_MASK0_B);
 		hd->irq_mask[1] = REMOTE_HUB_PTR(nasid, PI_INT_MASK1_B);
 	}
-
-	/* Make sure it's not already pending when we connect it. */
-	REMOTE_HUB_CLR_INTR(nasid, hd->bit);
 }
 
 static int set_affinity_hub_irq(struct irq_data *d, const struct cpumask *mask,
@@ -163,7 +98,7 @@
 	setup_hub_mask(hd, mask);
 
 	if (irqd_is_started(d))
-		startup_bridge_irq(d);
+		enable_hub_irq(d);
 
 	irq_data_update_effective_affinity(d, cpumask_of(hd->cpu));
 
@@ -172,20 +107,22 @@
 
 static struct irq_chip hub_irq_type = {
 	.name		  = "HUB",
-	.irq_startup	  = startup_bridge_irq,
-	.irq_shutdown	  = shutdown_bridge_irq,
 	.irq_mask	  = disable_hub_irq,
 	.irq_unmask	  = enable_hub_irq,
 	.irq_set_affinity = set_affinity_hub_irq,
 };
 
-int request_bridge_irq(struct bridge_controller *bc, int pin)
+static int hub_domain_alloc(struct irq_domain *domain, unsigned int virq,
+			    unsigned int nr_irqs, void *arg)
 {
+	struct irq_alloc_info *info = arg;
 	struct hub_irq_data *hd;
 	struct hub_data *hub;
 	struct irq_desc *desc;
 	int swlevel;
-	int irq;
+
+	if (nr_irqs > 1 || !info)
+		return -EINVAL;
 
 	hd = kzalloc(sizeof(*hd), GFP_KERNEL);
 	if (!hd)
@@ -196,46 +133,41 @@
 		kfree(hd);
 		return -EAGAIN;
 	}
-	irq = swlevel + IP27_HUB_IRQ_BASE;
-
-	hd->bc = bc;
-	hd->bit = swlevel;
-	hd->pin = pin;
-	irq_set_chip_data(irq, hd);
+	irq_domain_set_info(domain, virq, swlevel, &hub_irq_type, hd,
+			    handle_level_irq, NULL, NULL);
 
 	/* use CPU connected to nearest hub */
-	hub = hub_data(NASID_TO_COMPACT_NODEID(bc->nasid));
+	hub = hub_data(NASID_TO_COMPACT_NODEID(info->nasid));
 	setup_hub_mask(hd, &hub->h_cpus);
 
-	desc = irq_to_desc(irq);
-	desc->irq_common_data.node = bc->nasid;
+	/* Make sure it's not already pending when we connect it. */
+	REMOTE_HUB_CLR_INTR(info->nasid, swlevel);
+
+	desc = irq_to_desc(virq);
+	desc->irq_common_data.node = info->nasid;
 	cpumask_copy(desc->irq_common_data.affinity, &hub->h_cpus);
 
-	return irq;
+	return 0;
 }
 
-void ip27_hub_irq_init(void)
+static void hub_domain_free(struct irq_domain *domain,
+			    unsigned int virq, unsigned int nr_irqs)
 {
-	int i;
+	struct irq_data *irqd;
 
-	for (i = IP27_HUB_IRQ_BASE;
-	     i < (IP27_HUB_IRQ_BASE + IP27_HUB_IRQ_COUNT); i++)
-		irq_set_chip_and_handler(i, &hub_irq_type, handle_level_irq);
+	if (nr_irqs > 1)
+		return;
 
-	/*
-	 * Some interrupts are reserved by hardware or by software convention.
-	 * Mark these as reserved right away so they won't be used accidentally
-	 * later.
-	 */
-	for (i = 0; i <= BASE_PCI_IRQ; i++)
-		set_bit(i, hub_irq_map);
-
-	set_bit(IP_PEND0_6_63, hub_irq_map);
-
-	for (i = NI_BRDCAST_ERR_A; i <= MSC_PANIC_INTR; i++)
-		set_bit(i, hub_irq_map);
+	irqd = irq_domain_get_irq_data(domain, virq);
+	if (irqd && irqd->chip_data)
+		kfree(irqd->chip_data);
 }
 
+static const struct irq_domain_ops hub_domain_ops = {
+	.alloc = hub_domain_alloc,
+	.free  = hub_domain_free,
+};
+
 /*
  * This code is unnecessarily complex, because we do
  * intr enabling. Basically, once we grab the set of intrs we need
@@ -252,7 +184,9 @@
 {
 	cpuid_t cpu = smp_processor_id();
 	unsigned long *mask = per_cpu(irq_enable_mask, cpu);
+	struct irq_domain *domain;
 	u64 pend0;
+	int irq;
 
 	/* copied from Irix intpend0() */
 	pend0 = LOCAL_HUB_L(PI_INT_PEND0);
@@ -276,7 +210,14 @@
 		generic_smp_call_function_interrupt();
 	} else
 #endif
-		generic_handle_irq(__ffs(pend0) + IP27_HUB_IRQ_BASE);
+	{
+		domain = irq_desc_get_handler_data(desc);
+		irq = irq_linear_revmap(domain, __ffs(pend0));
+		if (irq)
+			generic_handle_irq(irq);
+		else
+			spurious_interrupt();
+	}
 
 	LOCAL_HUB_L(PI_INT_PEND0);
 }
@@ -285,7 +226,9 @@
 {
 	cpuid_t cpu = smp_processor_id();
 	unsigned long *mask = per_cpu(irq_enable_mask, cpu);
+	struct irq_domain *domain;
 	u64 pend1;
+	int irq;
 
 	/* copied from Irix intpend0() */
 	pend1 = LOCAL_HUB_L(PI_INT_PEND1);
@@ -294,7 +237,12 @@
 	if (!pend1)
 		return;
 
-	generic_handle_irq(__ffs(pend1) + IP27_HUB_IRQ_BASE + 64);
+	domain = irq_desc_get_handler_data(desc);
+	irq = irq_linear_revmap(domain, __ffs(pend1) + 64);
+	if (irq)
+		generic_handle_irq(irq);
+	else
+		spurious_interrupt();
 
 	LOCAL_HUB_L(PI_INT_PEND1);
 }
@@ -325,11 +273,41 @@
 
 void __init arch_init_irq(void)
 {
+	struct irq_domain *domain;
+	struct fwnode_handle *fn;
+	int i;
+
 	mips_cpu_irq_init();
-	ip27_hub_irq_init();
+
+	/*
+	 * Some interrupts are reserved by hardware or by software convention.
+	 * Mark these as reserved right away so they won't be used accidentally
+	 * later.
+	 */
+	for (i = 0; i <= BASE_PCI_IRQ; i++)
+		set_bit(i, hub_irq_map);
+
+	set_bit(IP_PEND0_6_63, hub_irq_map);
+
+	for (i = NI_BRDCAST_ERR_A; i <= MSC_PANIC_INTR; i++)
+		set_bit(i, hub_irq_map);
+
+	fn = irq_domain_alloc_named_fwnode("HUB");
+	WARN_ON(fn == NULL);
+	if (!fn)
+		return;
+	domain = irq_domain_create_linear(fn, IP27_HUB_IRQ_COUNT,
+					  &hub_domain_ops, NULL);
+	WARN_ON(domain == NULL);
+	if (!domain)
+		return;
+
+	irq_set_default_host(domain);
 
 	irq_set_percpu_devid(IP27_HUB_PEND0_IRQ);
-	irq_set_chained_handler(IP27_HUB_PEND0_IRQ, ip27_do_irq_mask0);
+	irq_set_chained_handler_and_data(IP27_HUB_PEND0_IRQ, ip27_do_irq_mask0,
+					 domain);
 	irq_set_percpu_devid(IP27_HUB_PEND1_IRQ);
-	irq_set_chained_handler(IP27_HUB_PEND1_IRQ, ip27_do_irq_mask1);
+	irq_set_chained_handler_and_data(IP27_HUB_PEND1_IRQ, ip27_do_irq_mask1,
+					 domain);
 }
diff --git a/arch/mips/sgi-ip27/ip27-xtalk.c b/arch/mips/sgi-ip27/ip27-xtalk.c
index ce06aaa..bd5cb85 100644
--- a/arch/mips/sgi-ip27/ip27-xtalk.c
+++ b/arch/mips/sgi-ip27/ip27-xtalk.c
@@ -9,6 +9,9 @@
 
 #include <linux/kernel.h>
 #include <linux/smp.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/xtalk-bridge.h>
+#include <asm/sn/addrs.h>
 #include <asm/sn/types.h>
 #include <asm/sn/klconfig.h>
 #include <asm/sn/hub.h>
@@ -20,7 +23,48 @@
 #define XXBOW_WIDGET_PART_NUM	0xd000	/* Xbow in Xbridge */
 #define BASE_XBOW_PORT		8     /* Lowest external port */
 
-extern int bridge_probe(nasid_t nasid, int widget, int masterwid);
+static void bridge_platform_create(nasid_t nasid, int widget, int masterwid)
+{
+	struct xtalk_bridge_platform_data *bd;
+	struct platform_device *pdev;
+	unsigned long offset;
+
+	bd = kzalloc(sizeof(*bd), GFP_KERNEL);
+	if (!bd)
+		goto no_mem;
+	pdev = platform_device_alloc("xtalk-bridge", PLATFORM_DEVID_AUTO);
+	if (!pdev) {
+		kfree(bd);
+		goto no_mem;
+	}
+
+	offset = NODE_OFFSET(nasid);
+
+	bd->bridge_addr = RAW_NODE_SWIN_BASE(nasid, widget);
+	bd->intr_addr	= BIT_ULL(47) + 0x01800000 + PI_INT_PEND_MOD;
+	bd->nasid	= nasid;
+	bd->masterwid	= masterwid;
+
+	bd->mem.name	= "Bridge PCI MEM";
+	bd->mem.start	= offset + (widget << SWIN_SIZE_BITS);
+	bd->mem.end	= bd->mem.start + SWIN_SIZE - 1;
+	bd->mem.flags	= IORESOURCE_MEM;
+	bd->mem_offset	= offset;
+
+	bd->io.name	= "Bridge PCI IO";
+	bd->io.start	= offset + (widget << SWIN_SIZE_BITS);
+	bd->io.end	= bd->io.start + SWIN_SIZE - 1;
+	bd->io.flags	= IORESOURCE_IO;
+	bd->io_offset	= offset;
+
+	platform_device_add_data(pdev, bd, sizeof(*bd));
+	platform_device_add(pdev);
+	pr_info("xtalk:n%d/%x bridge widget\n", nasid, widget);
+	return;
+
+no_mem:
+	pr_warn("xtalk:n%d/%x bridge create out of memory\n", nasid, widget);
+}
 
 static int probe_one_port(nasid_t nasid, int widget, int masterwid)
 {
@@ -31,13 +75,10 @@
 		(RAW_NODE_SWIN_BASE(nasid, widget) + WIDGET_ID);
 	partnum = XWIDGET_PART_NUM(widget_id);
 
-	printk(KERN_INFO "Cpu %d, Nasid 0x%x, widget 0x%x (partnum 0x%x) is ",
-			smp_processor_id(), nasid, widget, partnum);
-
 	switch (partnum) {
 	case BRIDGE_WIDGET_PART_NUM:
 	case XBRIDGE_WIDGET_PART_NUM:
-		bridge_probe(nasid, widget, masterwid);
+		bridge_platform_create(nasid, widget, masterwid);
 		break;
 	default:
 		break;
@@ -52,8 +93,6 @@
 	klxbow_t *xbow_p;
 	unsigned masterwid, i;
 
-	printk("is xbow\n");
-
 	/*
 	 * found xbow, so may have multiple bridges
 	 * need to probe xbow
@@ -117,19 +156,17 @@
 		       (RAW_NODE_SWIN_BASE(nasid, 0x0) + WIDGET_ID);
 	partnum = XWIDGET_PART_NUM(widget_id);
 
-	printk(KERN_INFO "Cpu %d, Nasid 0x%x: partnum 0x%x is ",
-			smp_processor_id(), nasid, partnum);
-
 	switch (partnum) {
 	case BRIDGE_WIDGET_PART_NUM:
-		bridge_probe(nasid, 0x8, 0xa);
+		bridge_platform_create(nasid, 0x8, 0xa);
 		break;
 	case XBOW_WIDGET_PART_NUM:
 	case XXBOW_WIDGET_PART_NUM:
+		pr_info("xtalk:n%d/0 xbow widget\n", nasid);
 		xbow_probe(nasid);
 		break;
 	default:
-		printk(" unknown widget??\n");
+		pr_info("xtalk:n%d/0 unknown widget (0x%x)\n", nasid, partnum);
 		break;
 	}
 }
diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index 1d11830..2781ebf 100644
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -93,6 +93,7 @@
 #define VMALLOC_REGION_ID	NON_LINEAR_REGION_ID(H_VMALLOC_START)
 #define IO_REGION_ID		NON_LINEAR_REGION_ID(H_KERN_IO_START)
 #define VMEMMAP_REGION_ID	NON_LINEAR_REGION_ID(H_VMEMMAP_START)
+#define INVALID_REGION_ID	(VMEMMAP_REGION_ID + 1)
 
 /*
  * Defines the address of the vmemap area, in its own region on
@@ -119,14 +120,15 @@
 	if (id == 0)
 		return USER_REGION_ID;
 
+	if (id != (PAGE_OFFSET >> 60))
+		return INVALID_REGION_ID;
+
 	if (ea < H_KERN_VIRT_START)
 		return LINEAR_MAP_REGION_ID;
 
-	VM_BUG_ON(id != 0xc);
 	BUILD_BUG_ON(NON_LINEAR_REGION_ID(H_VMALLOC_START) != 2);
 
 	region_id = NON_LINEAR_REGION_ID(ea);
-	VM_BUG_ON(region_id > VMEMMAP_REGION_ID);
 	return region_id;
 }
 
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h
index 611204e..58efca9 100644
--- a/arch/powerpc/include/asm/mmu_context.h
+++ b/arch/powerpc/include/asm/mmu_context.h
@@ -232,7 +232,6 @@
 extern void arch_exit_mmap(struct mm_struct *mm);
 
 static inline void arch_unmap(struct mm_struct *mm,
-			      struct vm_area_struct *vma,
 			      unsigned long start, unsigned long end)
 {
 	if (start <= mm->context.vdso_base && mm->context.vdso_base < end)
diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c
index f2ed3ef..862e289 100644
--- a/arch/powerpc/kernel/cacheinfo.c
+++ b/arch/powerpc/kernel/cacheinfo.c
@@ -767,7 +767,6 @@
 				  cache_dir->kobj, "index%d", index);
 	if (rc) {
 		kobject_put(&index_dir->kobj);
-		kfree(index_dir);
 		return;
 	}
 
diff --git a/arch/powerpc/mm/book3s32/hash_low.S b/arch/powerpc/mm/book3s32/hash_low.S
index e27792d..8366c2a 100644
--- a/arch/powerpc/mm/book3s32/hash_low.S
+++ b/arch/powerpc/mm/book3s32/hash_low.S
@@ -539,7 +539,8 @@
 #ifdef CONFIG_SMP
 	lis	r9, (mmu_hash_lock - PAGE_OFFSET)@ha
 	addi	r9, r9, (mmu_hash_lock - PAGE_OFFSET)@l
-	lwz	r8,TASK_CPU(r2)
+	tophys	(r8, r2)
+	lwz	r8, TASK_CPU(r8)
 	oris	r8,r8,9
 10:	lwarx	r0,0,r9
 	cmpi	0,r0,0
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index c5c9ff2..b5d92dc 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -556,7 +556,7 @@
 	if (size <= PAGE_SIZE || !is_power_of_2(size))
 		return -EINVAL;
 
-	mmu_psize = check_and_get_huge_psize(size);
+	mmu_psize = check_and_get_huge_psize(shift);
 	if (mmu_psize < 0)
 		return -EINVAL;
 
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index e66745d..ee32c66 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -27,7 +27,7 @@
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A
+	select GENERIC_ATOMIC64 if !64BIT
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_DMA_CONTIGUOUS
@@ -35,7 +35,6 @@
 	select HAVE_PERF_EVENTS
 	select HAVE_SYSCALL_TRACEPOINTS
 	select IRQ_DOMAIN
-	select RISCV_ISA_A if SMP
 	select SPARSE_IRQ
 	select SYSCTL_EXCEPTION_TRACE
 	select HAVE_ARCH_TRACEHOOK
@@ -195,9 +194,6 @@
 
 	   If you don't know what to do here, say Y.
 
-config RISCV_ISA_A
-	def_bool y
-
 menu "supported PMU type"
 	depends on PERF_EVENTS
 
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index c6342e6..6b0741c 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -39,9 +39,8 @@
 KBUILD_CFLAGS += -Wall
 
 # ISA string setting
-riscv-march-$(CONFIG_ARCH_RV32I)	:= rv32im
-riscv-march-$(CONFIG_ARCH_RV64I)	:= rv64im
-riscv-march-$(CONFIG_RISCV_ISA_A)	:= $(riscv-march-y)a
+riscv-march-$(CONFIG_ARCH_RV32I)	:= rv32ima
+riscv-march-$(CONFIG_ARCH_RV64I)	:= rv64ima
 riscv-march-$(CONFIG_FPU)		:= $(riscv-march-y)fd
 riscv-march-$(CONFIG_RISCV_ISA_C)	:= $(riscv-march-y)c
 KBUILD_CFLAGS += -march=$(subst fd,,$(riscv-march-y))
diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index f86d68d..3d019e0 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -3,6 +3,7 @@
 generic-y += compat.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += extable.h
 generic-y += dma.h
 generic-y += dma-contiguous.h
 generic-y += dma-mapping.h
diff --git a/arch/riscv/include/asm/bug.h b/arch/riscv/include/asm/bug.h
index bfc7f09..52a1fbd 100644
--- a/arch/riscv/include/asm/bug.h
+++ b/arch/riscv/include/asm/bug.h
@@ -21,7 +21,12 @@
 #include <asm/asm.h>
 
 #ifdef CONFIG_GENERIC_BUG
-#define __BUG_INSN	_AC(0x00100073, UL) /* ebreak */
+#define __INSN_LENGTH_MASK  _UL(0x3)
+#define __INSN_LENGTH_32    _UL(0x3)
+#define __COMPRESSED_INSN_MASK	_UL(0xffff)
+
+#define __BUG_INSN_32	_UL(0x00100073) /* ebreak */
+#define __BUG_INSN_16	_UL(0x9002) /* c.ebreak */
 
 #ifndef __ASSEMBLY__
 typedef u32 bug_insn_t;
@@ -38,38 +43,46 @@
 #define __BUG_ENTRY			\
 	__BUG_ENTRY_ADDR "\n\t"		\
 	__BUG_ENTRY_FILE "\n\t"		\
-	RISCV_SHORT " %1"
+	RISCV_SHORT " %1\n\t"		\
+	RISCV_SHORT " %2"
 #else
 #define __BUG_ENTRY			\
-	__BUG_ENTRY_ADDR
+	__BUG_ENTRY_ADDR "\n\t"		\
+	RISCV_SHORT " %2"
 #endif
 
-#define BUG()							\
+#define __BUG_FLAGS(flags)					\
 do {								\
 	__asm__ __volatile__ (					\
 		"1:\n\t"					\
 			"ebreak\n"				\
-			".pushsection __bug_table,\"a\"\n\t"	\
+			".pushsection __bug_table,\"aw\"\n\t"	\
 		"2:\n\t"					\
 			__BUG_ENTRY "\n\t"			\
-			".org 2b + %2\n\t"			\
+			".org 2b + %3\n\t"                      \
 			".popsection"				\
 		:						\
 		: "i" (__FILE__), "i" (__LINE__),		\
-		  "i" (sizeof(struct bug_entry)));		\
-	unreachable();						\
+		  "i" (flags),					\
+		  "i" (sizeof(struct bug_entry)));              \
 } while (0)
+
 #endif /* !__ASSEMBLY__ */
 #else /* CONFIG_GENERIC_BUG */
 #ifndef __ASSEMBLY__
-#define BUG()							\
-do {								\
+#define __BUG_FLAGS(flags) do {					\
 	__asm__ __volatile__ ("ebreak\n");			\
-	unreachable();						\
 } while (0)
 #endif /* !__ASSEMBLY__ */
 #endif /* CONFIG_GENERIC_BUG */
 
+#define BUG() do {						\
+	__BUG_FLAGS(0);						\
+	unreachable();						\
+} while (0)
+
+#define __WARN_FLAGS(flags) __BUG_FLAGS(BUGFLAG_WARNING|(flags))
+
 #define HAVE_ARCH_BUG
 
 #include <asm-generic/bug.h>
diff --git a/arch/riscv/include/asm/cacheflush.h b/arch/riscv/include/asm/cacheflush.h
index 8f13074..1f4ba68 100644
--- a/arch/riscv/include/asm/cacheflush.h
+++ b/arch/riscv/include/asm/cacheflush.h
@@ -47,7 +47,7 @@
 
 #else /* CONFIG_SMP */
 
-#define flush_icache_all() sbi_remote_fence_i(NULL)
+void flush_icache_all(void);
 void flush_icache_mm(struct mm_struct *mm, bool local);
 
 #endif /* CONFIG_SMP */
diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
index 28a0d1c..3c3c26c 100644
--- a/arch/riscv/include/asm/csr.h
+++ b/arch/riscv/include/asm/csr.h
@@ -14,64 +14,95 @@
 #ifndef _ASM_RISCV_CSR_H
 #define _ASM_RISCV_CSR_H
 
+#include <asm/asm.h>
 #include <linux/const.h>
 
 /* Status register flags */
-#define SR_SIE	_AC(0x00000002, UL) /* Supervisor Interrupt Enable */
-#define SR_SPIE	_AC(0x00000020, UL) /* Previous Supervisor IE */
-#define SR_SPP	_AC(0x00000100, UL) /* Previously Supervisor */
-#define SR_SUM	_AC(0x00040000, UL) /* Supervisor may access User Memory */
+#define SR_SIE		_AC(0x00000002, UL) /* Supervisor Interrupt Enable */
+#define SR_SPIE		_AC(0x00000020, UL) /* Previous Supervisor IE */
+#define SR_SPP		_AC(0x00000100, UL) /* Previously Supervisor */
+#define SR_SUM		_AC(0x00040000, UL) /* Supervisor User Memory Access */
 
-#define SR_FS           _AC(0x00006000, UL) /* Floating-point Status */
-#define SR_FS_OFF       _AC(0x00000000, UL)
-#define SR_FS_INITIAL   _AC(0x00002000, UL)
-#define SR_FS_CLEAN     _AC(0x00004000, UL)
-#define SR_FS_DIRTY     _AC(0x00006000, UL)
+#define SR_FS		_AC(0x00006000, UL) /* Floating-point Status */
+#define SR_FS_OFF	_AC(0x00000000, UL)
+#define SR_FS_INITIAL	_AC(0x00002000, UL)
+#define SR_FS_CLEAN	_AC(0x00004000, UL)
+#define SR_FS_DIRTY	_AC(0x00006000, UL)
 
-#define SR_XS           _AC(0x00018000, UL) /* Extension Status */
-#define SR_XS_OFF       _AC(0x00000000, UL)
-#define SR_XS_INITIAL   _AC(0x00008000, UL)
-#define SR_XS_CLEAN     _AC(0x00010000, UL)
-#define SR_XS_DIRTY     _AC(0x00018000, UL)
+#define SR_XS		_AC(0x00018000, UL) /* Extension Status */
+#define SR_XS_OFF	_AC(0x00000000, UL)
+#define SR_XS_INITIAL	_AC(0x00008000, UL)
+#define SR_XS_CLEAN	_AC(0x00010000, UL)
+#define SR_XS_DIRTY	_AC(0x00018000, UL)
 
 #ifndef CONFIG_64BIT
-#define SR_SD   _AC(0x80000000, UL) /* FS/XS dirty */
+#define SR_SD		_AC(0x80000000, UL) /* FS/XS dirty */
 #else
-#define SR_SD   _AC(0x8000000000000000, UL) /* FS/XS dirty */
+#define SR_SD		_AC(0x8000000000000000, UL) /* FS/XS dirty */
 #endif
 
 /* SATP flags */
-#if __riscv_xlen == 32
-#define SATP_PPN     _AC(0x003FFFFF, UL)
-#define SATP_MODE_32 _AC(0x80000000, UL)
-#define SATP_MODE    SATP_MODE_32
+#ifndef CONFIG_64BIT
+#define SATP_PPN	_AC(0x003FFFFF, UL)
+#define SATP_MODE_32	_AC(0x80000000, UL)
+#define SATP_MODE	SATP_MODE_32
 #else
-#define SATP_PPN     _AC(0x00000FFFFFFFFFFF, UL)
-#define SATP_MODE_39 _AC(0x8000000000000000, UL)
-#define SATP_MODE    SATP_MODE_39
+#define SATP_PPN	_AC(0x00000FFFFFFFFFFF, UL)
+#define SATP_MODE_39	_AC(0x8000000000000000, UL)
+#define SATP_MODE	SATP_MODE_39
 #endif
 
-/* Interrupt Enable and Interrupt Pending flags */
-#define SIE_SSIE _AC(0x00000002, UL) /* Software Interrupt Enable */
-#define SIE_STIE _AC(0x00000020, UL) /* Timer Interrupt Enable */
-#define SIE_SEIE _AC(0x00000200, UL) /* External Interrupt Enable */
+/* SCAUSE */
+#define SCAUSE_IRQ_FLAG		(_AC(1, UL) << (__riscv_xlen - 1))
 
-#define EXC_INST_MISALIGNED     0
-#define EXC_INST_ACCESS         1
-#define EXC_BREAKPOINT          3
-#define EXC_LOAD_ACCESS         5
-#define EXC_STORE_ACCESS        7
-#define EXC_SYSCALL             8
-#define EXC_INST_PAGE_FAULT     12
-#define EXC_LOAD_PAGE_FAULT     13
-#define EXC_STORE_PAGE_FAULT    15
+#define IRQ_U_SOFT		0
+#define IRQ_S_SOFT		1
+#define IRQ_M_SOFT		3
+#define IRQ_U_TIMER		4
+#define IRQ_S_TIMER		5
+#define IRQ_M_TIMER		7
+#define IRQ_U_EXT		8
+#define IRQ_S_EXT		9
+#define IRQ_M_EXT		11
+
+#define EXC_INST_MISALIGNED	0
+#define EXC_INST_ACCESS		1
+#define EXC_BREAKPOINT		3
+#define EXC_LOAD_ACCESS		5
+#define EXC_STORE_ACCESS	7
+#define EXC_SYSCALL		8
+#define EXC_INST_PAGE_FAULT	12
+#define EXC_LOAD_PAGE_FAULT	13
+#define EXC_STORE_PAGE_FAULT	15
+
+/* SIE (Interrupt Enable) and SIP (Interrupt Pending) flags */
+#define SIE_SSIE		(_AC(0x1, UL) << IRQ_S_SOFT)
+#define SIE_STIE		(_AC(0x1, UL) << IRQ_S_TIMER)
+#define SIE_SEIE		(_AC(0x1, UL) << IRQ_S_EXT)
+
+#define CSR_CYCLE		0xc00
+#define CSR_TIME		0xc01
+#define CSR_INSTRET		0xc02
+#define CSR_SSTATUS		0x100
+#define CSR_SIE			0x104
+#define CSR_STVEC		0x105
+#define CSR_SCOUNTEREN		0x106
+#define CSR_SSCRATCH		0x140
+#define CSR_SEPC		0x141
+#define CSR_SCAUSE		0x142
+#define CSR_STVAL		0x143
+#define CSR_SIP			0x144
+#define CSR_SATP		0x180
+#define CSR_CYCLEH		0xc80
+#define CSR_TIMEH		0xc81
+#define CSR_INSTRETH		0xc82
 
 #ifndef __ASSEMBLY__
 
 #define csr_swap(csr, val)					\
 ({								\
 	unsigned long __v = (unsigned long)(val);		\
-	__asm__ __volatile__ ("csrrw %0, " #csr ", %1"		\
+	__asm__ __volatile__ ("csrrw %0, " __ASM_STR(csr) ", %1"\
 			      : "=r" (__v) : "rK" (__v)		\
 			      : "memory");			\
 	__v;							\
@@ -80,7 +111,7 @@
 #define csr_read(csr)						\
 ({								\
 	register unsigned long __v;				\
-	__asm__ __volatile__ ("csrr %0, " #csr			\
+	__asm__ __volatile__ ("csrr %0, " __ASM_STR(csr)	\
 			      : "=r" (__v) :			\
 			      : "memory");			\
 	__v;							\
@@ -89,7 +120,7 @@
 #define csr_write(csr, val)					\
 ({								\
 	unsigned long __v = (unsigned long)(val);		\
-	__asm__ __volatile__ ("csrw " #csr ", %0"		\
+	__asm__ __volatile__ ("csrw " __ASM_STR(csr) ", %0"	\
 			      : : "rK" (__v)			\
 			      : "memory");			\
 })
@@ -97,7 +128,7 @@
 #define csr_read_set(csr, val)					\
 ({								\
 	unsigned long __v = (unsigned long)(val);		\
-	__asm__ __volatile__ ("csrrs %0, " #csr ", %1"		\
+	__asm__ __volatile__ ("csrrs %0, " __ASM_STR(csr) ", %1"\
 			      : "=r" (__v) : "rK" (__v)		\
 			      : "memory");			\
 	__v;							\
@@ -106,7 +137,7 @@
 #define csr_set(csr, val)					\
 ({								\
 	unsigned long __v = (unsigned long)(val);		\
-	__asm__ __volatile__ ("csrs " #csr ", %0"		\
+	__asm__ __volatile__ ("csrs " __ASM_STR(csr) ", %0"	\
 			      : : "rK" (__v)			\
 			      : "memory");			\
 })
@@ -114,7 +145,7 @@
 #define csr_read_clear(csr, val)				\
 ({								\
 	unsigned long __v = (unsigned long)(val);		\
-	__asm__ __volatile__ ("csrrc %0, " #csr ", %1"		\
+	__asm__ __volatile__ ("csrrc %0, " __ASM_STR(csr) ", %1"\
 			      : "=r" (__v) : "rK" (__v)		\
 			      : "memory");			\
 	__v;							\
@@ -123,7 +154,7 @@
 #define csr_clear(csr, val)					\
 ({								\
 	unsigned long __v = (unsigned long)(val);		\
-	__asm__ __volatile__ ("csrc " #csr ", %0"		\
+	__asm__ __volatile__ ("csrc " __ASM_STR(csr) ", %0"	\
 			      : : "rK" (__v)			\
 			      : "memory");			\
 })
diff --git a/arch/riscv/include/asm/elf.h b/arch/riscv/include/asm/elf.h
index 697fc23..ce0cd7d 100644
--- a/arch/riscv/include/asm/elf.h
+++ b/arch/riscv/include/asm/elf.h
@@ -27,13 +27,7 @@
 #define ELF_CLASS	ELFCLASS32
 #endif
 
-#if defined(__LITTLE_ENDIAN)
 #define ELF_DATA	ELFDATA2LSB
-#elif defined(__BIG_ENDIAN)
-#define ELF_DATA	ELFDATA2MSB
-#else
-#error "Unknown endianness"
-#endif
 
 /*
  * This is used to ensure we don't load something for the wrong architecture.
diff --git a/arch/riscv/include/asm/futex.h b/arch/riscv/include/asm/futex.h
index 6664162..4ad6409 100644
--- a/arch/riscv/include/asm/futex.h
+++ b/arch/riscv/include/asm/futex.h
@@ -7,18 +7,6 @@
 #ifndef _ASM_FUTEX_H
 #define _ASM_FUTEX_H
 
-#ifndef CONFIG_RISCV_ISA_A
-/*
- * Use the generic interrupt disabling versions if the A extension
- * is not supported.
- */
-#ifdef CONFIG_SMP
-#error "Can't support generic futex calls without A extension on SMP"
-#endif
-#include <asm-generic/futex.h>
-
-#else /* CONFIG_RISCV_ISA_A */
-
 #include <linux/futex.h>
 #include <linux/uaccess.h>
 #include <linux/errno.h>
@@ -124,5 +112,4 @@
 	return ret;
 }
 
-#endif /* CONFIG_RISCV_ISA_A */
 #endif /* _ASM_FUTEX_H */
diff --git a/arch/riscv/include/asm/irqflags.h b/arch/riscv/include/asm/irqflags.h
index 07a3c6d..1a69b3b 100644
--- a/arch/riscv/include/asm/irqflags.h
+++ b/arch/riscv/include/asm/irqflags.h
@@ -21,25 +21,25 @@
 /* read interrupt enabled status */
 static inline unsigned long arch_local_save_flags(void)
 {
-	return csr_read(sstatus);
+	return csr_read(CSR_SSTATUS);
 }
 
 /* unconditionally enable interrupts */
 static inline void arch_local_irq_enable(void)
 {
-	csr_set(sstatus, SR_SIE);
+	csr_set(CSR_SSTATUS, SR_SIE);
 }
 
 /* unconditionally disable interrupts */
 static inline void arch_local_irq_disable(void)
 {
-	csr_clear(sstatus, SR_SIE);
+	csr_clear(CSR_SSTATUS, SR_SIE);
 }
 
 /* get status and disable interrupts */
 static inline unsigned long arch_local_irq_save(void)
 {
-	return csr_read_clear(sstatus, SR_SIE);
+	return csr_read_clear(CSR_SSTATUS, SR_SIE);
 }
 
 /* test flags */
@@ -57,7 +57,7 @@
 /* set interrupt enabled status */
 static inline void arch_local_irq_restore(unsigned long flags)
 {
-	csr_set(sstatus, flags & SR_SIE);
+	csr_set(CSR_SSTATUS, flags & SR_SIE);
 }
 
 #endif /* _ASM_RISCV_IRQFLAGS_H */
diff --git a/arch/riscv/include/asm/mmu_context.h b/arch/riscv/include/asm/mmu_context.h
index 336d60e..bf4f097 100644
--- a/arch/riscv/include/asm/mmu_context.h
+++ b/arch/riscv/include/asm/mmu_context.h
@@ -20,8 +20,6 @@
 
 #include <linux/mm.h>
 #include <linux/sched.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
 
 static inline void enter_lazy_tlb(struct mm_struct *mm,
 	struct task_struct *task)
@@ -39,61 +37,8 @@
 {
 }
 
-/*
- * When necessary, performs a deferred icache flush for the given MM context,
- * on the local CPU.  RISC-V has no direct mechanism for instruction cache
- * shoot downs, so instead we send an IPI that informs the remote harts they
- * need to flush their local instruction caches.  To avoid pathologically slow
- * behavior in a common case (a bunch of single-hart processes on a many-hart
- * machine, ie 'make -j') we avoid the IPIs for harts that are not currently
- * executing a MM context and instead schedule a deferred local instruction
- * cache flush to be performed before execution resumes on each hart.  This
- * actually performs that local instruction cache flush, which implicitly only
- * refers to the current hart.
- */
-static inline void flush_icache_deferred(struct mm_struct *mm)
-{
-#ifdef CONFIG_SMP
-	unsigned int cpu = smp_processor_id();
-	cpumask_t *mask = &mm->context.icache_stale_mask;
-
-	if (cpumask_test_cpu(cpu, mask)) {
-		cpumask_clear_cpu(cpu, mask);
-		/*
-		 * Ensure the remote hart's writes are visible to this hart.
-		 * This pairs with a barrier in flush_icache_mm.
-		 */
-		smp_mb();
-		local_flush_icache_all();
-	}
-#endif
-}
-
-static inline void switch_mm(struct mm_struct *prev,
-	struct mm_struct *next, struct task_struct *task)
-{
-	if (likely(prev != next)) {
-		/*
-		 * Mark the current MM context as inactive, and the next as
-		 * active.  This is at least used by the icache flushing
-		 * routines in order to determine who should
-		 */
-		unsigned int cpu = smp_processor_id();
-
-		cpumask_clear_cpu(cpu, mm_cpumask(prev));
-		cpumask_set_cpu(cpu, mm_cpumask(next));
-
-		/*
-		 * Use the old spbtr name instead of using the current satp
-		 * name to support binutils 2.29 which doesn't know about the
-		 * privileged ISA 1.10 yet.
-		 */
-		csr_write(sptbr, virt_to_pfn(next->pgd) | SATP_MODE);
-		local_flush_tlb_all();
-
-		flush_icache_deferred(next);
-	}
-}
+void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+	struct task_struct *task);
 
 static inline void activate_mm(struct mm_struct *prev,
 			       struct mm_struct *next)
diff --git a/arch/riscv/include/asm/ptrace.h b/arch/riscv/include/asm/ptrace.h
index d35ec2f..9c867a4 100644
--- a/arch/riscv/include/asm/ptrace.h
+++ b/arch/riscv/include/asm/ptrace.h
@@ -70,47 +70,38 @@
 
 
 /* Helpers for working with the instruction pointer */
-#define GET_IP(regs) ((regs)->sepc)
-#define SET_IP(regs, val) (GET_IP(regs) = (val))
-
 static inline unsigned long instruction_pointer(struct pt_regs *regs)
 {
-	return GET_IP(regs);
+	return regs->sepc;
 }
 static inline void instruction_pointer_set(struct pt_regs *regs,
 					   unsigned long val)
 {
-	SET_IP(regs, val);
+	regs->sepc = val;
 }
 
 #define profile_pc(regs) instruction_pointer(regs)
 
 /* Helpers for working with the user stack pointer */
-#define GET_USP(regs) ((regs)->sp)
-#define SET_USP(regs, val) (GET_USP(regs) = (val))
-
 static inline unsigned long user_stack_pointer(struct pt_regs *regs)
 {
-	return GET_USP(regs);
+	return regs->sp;
 }
 static inline void user_stack_pointer_set(struct pt_regs *regs,
 					  unsigned long val)
 {
-	SET_USP(regs, val);
+	regs->sp =  val;
 }
 
 /* Helpers for working with the frame pointer */
-#define GET_FP(regs) ((regs)->s0)
-#define SET_FP(regs, val) (GET_FP(regs) = (val))
-
 static inline unsigned long frame_pointer(struct pt_regs *regs)
 {
-	return GET_FP(regs);
+	return regs->s0;
 }
 static inline void frame_pointer_set(struct pt_regs *regs,
 				     unsigned long val)
 {
-	SET_FP(regs, val);
+	regs->s0 = val;
 }
 
 static inline unsigned long regs_return_value(struct pt_regs *regs)
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index b6bb10b..19f2316 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -26,22 +26,27 @@
 #define SBI_REMOTE_SFENCE_VMA_ASID 7
 #define SBI_SHUTDOWN 8
 
-#define SBI_CALL(which, arg0, arg1, arg2) ({			\
+#define SBI_CALL(which, arg0, arg1, arg2, arg3) ({		\
 	register uintptr_t a0 asm ("a0") = (uintptr_t)(arg0);	\
 	register uintptr_t a1 asm ("a1") = (uintptr_t)(arg1);	\
 	register uintptr_t a2 asm ("a2") = (uintptr_t)(arg2);	\
+	register uintptr_t a3 asm ("a3") = (uintptr_t)(arg3);	\
 	register uintptr_t a7 asm ("a7") = (uintptr_t)(which);	\
 	asm volatile ("ecall"					\
 		      : "+r" (a0)				\
-		      : "r" (a1), "r" (a2), "r" (a7)		\
+		      : "r" (a1), "r" (a2), "r" (a3), "r" (a7)	\
 		      : "memory");				\
 	a0;							\
 })
 
 /* Lazy implementations until SBI is finalized */
-#define SBI_CALL_0(which) SBI_CALL(which, 0, 0, 0)
-#define SBI_CALL_1(which, arg0) SBI_CALL(which, arg0, 0, 0)
-#define SBI_CALL_2(which, arg0, arg1) SBI_CALL(which, arg0, arg1, 0)
+#define SBI_CALL_0(which) SBI_CALL(which, 0, 0, 0, 0)
+#define SBI_CALL_1(which, arg0) SBI_CALL(which, arg0, 0, 0, 0)
+#define SBI_CALL_2(which, arg0, arg1) SBI_CALL(which, arg0, arg1, 0, 0)
+#define SBI_CALL_3(which, arg0, arg1, arg2) \
+		SBI_CALL(which, arg0, arg1, arg2, 0)
+#define SBI_CALL_4(which, arg0, arg1, arg2, arg3) \
+		SBI_CALL(which, arg0, arg1, arg2, arg3)
 
 static inline void sbi_console_putchar(int ch)
 {
@@ -86,7 +91,7 @@
 					 unsigned long start,
 					 unsigned long size)
 {
-	SBI_CALL_1(SBI_REMOTE_SFENCE_VMA, hart_mask);
+	SBI_CALL_3(SBI_REMOTE_SFENCE_VMA, hart_mask, start, size);
 }
 
 static inline void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask,
@@ -94,7 +99,7 @@
 					      unsigned long size,
 					      unsigned long asid)
 {
-	SBI_CALL_1(SBI_REMOTE_SFENCE_VMA_ASID, hart_mask);
+	SBI_CALL_4(SBI_REMOTE_SFENCE_VMA_ASID, hart_mask, start, size, asid);
 }
 
 #endif
diff --git a/arch/riscv/include/asm/sifive_l2_cache.h b/arch/riscv/include/asm/sifive_l2_cache.h
new file mode 100644
index 0000000..04f6748
--- /dev/null
+++ b/arch/riscv/include/asm/sifive_l2_cache.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * SiFive L2 Cache Controller header file
+ *
+ */
+
+#ifndef _ASM_RISCV_SIFIVE_L2_CACHE_H
+#define _ASM_RISCV_SIFIVE_L2_CACHE_H
+
+extern int register_sifive_l2_error_notifier(struct notifier_block *nb);
+extern int unregister_sifive_l2_error_notifier(struct notifier_block *nb);
+
+#define SIFIVE_L2_ERR_TYPE_CE 0
+#define SIFIVE_L2_ERR_TYPE_UE 1
+
+#endif /* _ASM_RISCV_SIFIVE_L2_CACHE_H */
diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
index 1c9cc83..9c03987 100644
--- a/arch/riscv/include/asm/thread_info.h
+++ b/arch/riscv/include/asm/thread_info.h
@@ -28,7 +28,9 @@
 #include <asm/processor.h>
 #include <asm/csr.h>
 
-typedef unsigned long mm_segment_t;
+typedef struct {
+	unsigned long seg;
+} mm_segment_t;
 
 /*
  * low level task data that entry.S needs immediate access to
diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h
index fb53a80..b26f407 100644
--- a/arch/riscv/include/asm/uaccess.h
+++ b/arch/riscv/include/asm/uaccess.h
@@ -23,6 +23,7 @@
 #include <linux/compiler.h>
 #include <linux/thread_info.h>
 #include <asm/byteorder.h>
+#include <asm/extable.h>
 #include <asm/asm.h>
 
 #define __enable_user_access()							\
@@ -38,8 +39,10 @@
  * For historical reasons, these macros are grossly misnamed.
  */
 
-#define KERNEL_DS	(~0UL)
-#define USER_DS		(TASK_SIZE)
+#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })
+
+#define KERNEL_DS	MAKE_MM_SEG(~0UL)
+#define USER_DS		MAKE_MM_SEG(TASK_SIZE)
 
 #define get_fs()	(current_thread_info()->addr_limit)
 
@@ -48,9 +51,9 @@
 	current_thread_info()->addr_limit = fs;
 }
 
-#define segment_eq(a, b) ((a) == (b))
+#define segment_eq(a, b) ((a).seg == (b).seg)
 
-#define user_addr_max()	(get_fs())
+#define user_addr_max()	(get_fs().seg)
 
 
 /**
@@ -82,7 +85,7 @@
 {
 	const mm_segment_t fs = get_fs();
 
-	return (size <= fs) && (addr <= (fs - size));
+	return size <= fs.seg && addr <= fs.seg - size;
 }
 
 /*
@@ -98,21 +101,8 @@
  * on our cache or tlb entries.
  */
 
-struct exception_table_entry {
-	unsigned long insn, fixup;
-};
-
-extern int fixup_exception(struct pt_regs *state);
-
-#if defined(__LITTLE_ENDIAN)
-#define __MSW	1
 #define __LSW	0
-#elif defined(__BIG_ENDIAN)
-#define __MSW	0
-#define	__LSW	1
-#else
-#error "Unknown endianness"
-#endif
+#define __MSW	1
 
 /*
  * The "__xxx" versions of the user access functions do not verify the address
diff --git a/arch/riscv/kernel/asm-offsets.c b/arch/riscv/kernel/asm-offsets.c
index dac9834..578bb5e 100644
--- a/arch/riscv/kernel/asm-offsets.c
+++ b/arch/riscv/kernel/asm-offsets.c
@@ -312,9 +312,6 @@
 		- offsetof(struct task_struct, thread.fstate.f[0])
 	);
 
-	/* The assembler needs access to THREAD_SIZE as well. */
-	DEFINE(ASM_THREAD_SIZE, THREAD_SIZE);
-
 	/*
 	 * We allocate a pt_regs on the stack when entering the kernel.  This
 	 * ensures the alignment is sane.
diff --git a/arch/riscv/kernel/cpu.c b/arch/riscv/kernel/cpu.c
index cf2fca1..c8d2a32 100644
--- a/arch/riscv/kernel/cpu.c
+++ b/arch/riscv/kernel/cpu.c
@@ -136,8 +136,7 @@
 static int c_show(struct seq_file *m, void *v)
 {
 	unsigned long cpu_id = (unsigned long)v - 1;
-	struct device_node *node = of_get_cpu_node(cpuid_to_hartid_map(cpu_id),
-						   NULL);
+	struct device_node *node = of_get_cpu_node(cpu_id, NULL);
 	const char *compat, *isa, *mmu;
 
 	seq_printf(m, "processor\t: %lu\n", cpu_id);
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index fd9b57c..1c1ecc2 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -37,11 +37,11 @@
 	 * the kernel thread pointer.  If we came from the kernel, sscratch
 	 * will contain 0, and we should continue on the current TP.
 	 */
-	csrrw tp, sscratch, tp
+	csrrw tp, CSR_SSCRATCH, tp
 	bnez tp, _save_context
 
 _restore_kernel_tpsp:
-	csrr tp, sscratch
+	csrr tp, CSR_SSCRATCH
 	REG_S sp, TASK_TI_KERNEL_SP(tp)
 _save_context:
 	REG_S sp, TASK_TI_USER_SP(tp)
@@ -87,11 +87,11 @@
 	li t0, SR_SUM | SR_FS
 
 	REG_L s0, TASK_TI_USER_SP(tp)
-	csrrc s1, sstatus, t0
-	csrr s2, sepc
-	csrr s3, sbadaddr
-	csrr s4, scause
-	csrr s5, sscratch
+	csrrc s1, CSR_SSTATUS, t0
+	csrr s2, CSR_SEPC
+	csrr s3, CSR_STVAL
+	csrr s4, CSR_SCAUSE
+	csrr s5, CSR_SSCRATCH
 	REG_S s0, PT_SP(sp)
 	REG_S s1, PT_SSTATUS(sp)
 	REG_S s2, PT_SEPC(sp)
@@ -107,8 +107,8 @@
 	.macro RESTORE_ALL
 	REG_L a0, PT_SSTATUS(sp)
 	REG_L a2, PT_SEPC(sp)
-	csrw sstatus, a0
-	csrw sepc, a2
+	csrw CSR_SSTATUS, a0
+	csrw CSR_SEPC, a2
 
 	REG_L x1,  PT_RA(sp)
 	REG_L x3,  PT_GP(sp)
@@ -155,7 +155,7 @@
 	 * Set sscratch register to 0, so that if a recursive exception
 	 * occurs, the exception vector knows it came from the kernel
 	 */
-	csrw sscratch, x0
+	csrw CSR_SSCRATCH, x0
 
 	/* Load the global pointer */
 .option push
@@ -248,7 +248,7 @@
 	 * Save TP into sscratch, so we can find the kernel data structures
 	 * again.
 	 */
-	csrw sscratch, tp
+	csrw CSR_SSCRATCH, tp
 
 restore_all:
 	RESTORE_ALL
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index fe884cd..370c66c 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -23,7 +23,8 @@
 __INIT
 ENTRY(_start)
 	/* Mask all interrupts */
-	csrw sie, zero
+	csrw CSR_SIE, zero
+	csrw CSR_SIP, zero
 
 	/* Load the global pointer */
 .option push
@@ -68,14 +69,10 @@
 	/* Restore C environment */
 	la tp, init_task
 	sw zero, TASK_TI_CPU(tp)
-
-	la sp, init_thread_union
-	li a0, ASM_THREAD_SIZE
-	add sp, sp, a0
+	la sp, init_thread_union + THREAD_SIZE
 
 	/* Start the kernel */
-	mv a0, s0
-	mv a1, s1
+	mv a0, s1
 	call parse_dtb
 	tail start_kernel
 
@@ -89,7 +86,7 @@
 	/* Point stvec to virtual address of intruction after satp write */
 	la a0, 1f
 	add a0, a0, a1
-	csrw stvec, a0
+	csrw CSR_STVEC, a0
 
 	/* Compute satp for kernel page tables, but don't load it yet */
 	la a2, swapper_pg_dir
@@ -99,18 +96,20 @@
 
 	/*
 	 * Load trampoline page directory, which will cause us to trap to
-	 * stvec if VA != PA, or simply fall through if VA == PA
+	 * stvec if VA != PA, or simply fall through if VA == PA.  We need a
+	 * full fence here because setup_vm() just wrote these PTEs and we need
+	 * to ensure the new translations are in use.
 	 */
 	la a0, trampoline_pg_dir
 	srl a0, a0, PAGE_SHIFT
 	or a0, a0, a1
 	sfence.vma
-	csrw sptbr, a0
+	csrw CSR_SATP, a0
 .align 2
 1:
 	/* Set trap vector to spin forever to help debug */
 	la a0, .Lsecondary_park
-	csrw stvec, a0
+	csrw CSR_STVEC, a0
 
 	/* Reload the global pointer */
 .option push
@@ -118,8 +117,14 @@
 	la gp, __global_pointer$
 .option pop
 
-	/* Switch to kernel page tables */
-	csrw sptbr, a2
+	/*
+	 * Switch to kernel page tables.  A full fence is necessary in order to
+	 * avoid using the trampoline translations, which are only correct for
+	 * the first superpage.  Fetching the fence is guarnteed to work
+	 * because that first superpage is translated the same way.
+	 */
+	csrw CSR_SATP, a2
+	sfence.vma
 
 	ret
 
@@ -130,7 +135,7 @@
 
 	/* Set trap vector to spin forever to help debug */
 	la a3, .Lsecondary_park
-	csrw stvec, a3
+	csrw CSR_STVEC, a3
 
 	slli a3, a0, LGREG
 	la a1, __cpu_up_stack_pointer
diff --git a/arch/riscv/kernel/irq.c b/arch/riscv/kernel/irq.c
index 48e6b7d..6d86593 100644
--- a/arch/riscv/kernel/irq.c
+++ b/arch/riscv/kernel/irq.c
@@ -14,17 +14,9 @@
 /*
  * Possible interrupt causes:
  */
-#define INTERRUPT_CAUSE_SOFTWARE    1
-#define INTERRUPT_CAUSE_TIMER       5
-#define INTERRUPT_CAUSE_EXTERNAL    9
-
-/*
- * The high order bit of the trap cause register is always set for
- * interrupts, which allows us to differentiate them from exceptions
- * quickly.  The INTERRUPT_CAUSE_* macros don't contain that bit, so we
- * need to mask it off.
- */
-#define INTERRUPT_CAUSE_FLAG	(1UL << (__riscv_xlen - 1))
+#define INTERRUPT_CAUSE_SOFTWARE	IRQ_S_SOFT
+#define INTERRUPT_CAUSE_TIMER		IRQ_S_TIMER
+#define INTERRUPT_CAUSE_EXTERNAL	IRQ_S_EXT
 
 int arch_show_interrupts(struct seq_file *p, int prec)
 {
@@ -37,7 +29,7 @@
 	struct pt_regs *old_regs = set_irq_regs(regs);
 
 	irq_enter();
-	switch (regs->scause & ~INTERRUPT_CAUSE_FLAG) {
+	switch (regs->scause & ~SCAUSE_IRQ_FLAG) {
 	case INTERRUPT_CAUSE_TIMER:
 		riscv_timer_interrupt();
 		break;
@@ -54,7 +46,8 @@
 		handle_arch_irq(regs);
 		break;
 	default:
-		panic("unexpected interrupt cause");
+		pr_alert("unexpected interrupt cause 0x%lx", regs->scause);
+		BUG();
 	}
 	irq_exit();
 
diff --git a/arch/riscv/kernel/perf_event.c b/arch/riscv/kernel/perf_event.c
index 667ee70..91626d9 100644
--- a/arch/riscv/kernel/perf_event.c
+++ b/arch/riscv/kernel/perf_event.c
@@ -185,10 +185,10 @@
 
 	switch (idx) {
 	case RISCV_PMU_CYCLE:
-		val = csr_read(cycle);
+		val = csr_read(CSR_CYCLE);
 		break;
 	case RISCV_PMU_INSTRET:
-		val = csr_read(instret);
+		val = csr_read(CSR_INSTRET);
 		break;
 	default:
 		WARN_ON_ONCE(idx < 0 ||	idx > RISCV_MAX_COUNTERS);
diff --git a/arch/riscv/kernel/reset.c b/arch/riscv/kernel/reset.c
index 2a53d26..ed637aee 100644
--- a/arch/riscv/kernel/reset.c
+++ b/arch/riscv/kernel/reset.c
@@ -12,11 +12,15 @@
  */
 
 #include <linux/reboot.h>
-#include <linux/export.h>
 #include <asm/sbi.h>
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
+static void default_power_off(void)
+{
+	sbi_shutdown();
+	while (1);
+}
+
+void (*pm_power_off)(void) = default_power_off;
 
 void machine_restart(char *cmd)
 {
@@ -26,11 +30,10 @@
 
 void machine_halt(void)
 {
-	machine_power_off();
+	pm_power_off();
 }
 
 void machine_power_off(void)
 {
-	sbi_shutdown();
-	while (1);
+	pm_power_off();
 }
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index 540a331..d93bcce 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -52,9 +52,11 @@
 atomic_t hart_lottery;
 unsigned long boot_cpu_hartid;
 
-void __init parse_dtb(unsigned int hartid, void *dtb)
+void __init parse_dtb(phys_addr_t dtb_phys)
 {
-	if (early_init_dt_scan(__va(dtb)))
+	void *dtb = __va(dtb_phys);
+
+	if (early_init_dt_scan(dtb))
 		return;
 
 	pr_err("No DTB passed to the kernel\n");
diff --git a/arch/riscv/kernel/signal.c b/arch/riscv/kernel/signal.c
index 837e164..804d6ee 100644
--- a/arch/riscv/kernel/signal.c
+++ b/arch/riscv/kernel/signal.c
@@ -234,6 +234,9 @@
 
 	/* Are we from a system call? */
 	if (regs->scause == EXC_SYSCALL) {
+		/* Avoid additional syscall restarting via ret_from_exception */
+		regs->scause = -1UL;
+
 		/* If so, check system call restarting.. */
 		switch (regs->a0) {
 		case -ERESTART_RESTARTBLOCK:
@@ -272,6 +275,9 @@
 
 	/* Did we come from a system call? */
 	if (regs->scause == EXC_SYSCALL) {
+		/* Avoid additional syscall restarting via ret_from_exception */
+		regs->scause = -1UL;
+
 		/* Restart the system call - no handlers present */
 		switch (regs->a0) {
 		case -ERESTARTNOHAND:
diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c
index 0c41d07..b2537ff 100644
--- a/arch/riscv/kernel/smp.c
+++ b/arch/riscv/kernel/smp.c
@@ -42,7 +42,7 @@
 
 void __init smp_setup_processor_id(void)
 {
-       cpuid_to_hartid_map(0) = boot_cpu_hartid;
+	cpuid_to_hartid_map(0) = boot_cpu_hartid;
 }
 
 /* A collection of single bit ipi messages.  */
@@ -53,7 +53,7 @@
 
 int riscv_hartid_to_cpuid(int hartid)
 {
-	int i = -1;
+	int i;
 
 	for (i = 0; i < NR_CPUS; i++)
 		if (cpuid_to_hartid_map(i) == hartid)
@@ -70,6 +70,12 @@
 	for_each_cpu(cpu, in)
 		cpumask_set_cpu(cpuid_to_hartid_map(cpu), out);
 }
+
+bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
+{
+	return phys_id == cpuid_to_hartid_map(cpu);
+}
+
 /* Unsupported */
 int setup_profiling_timer(unsigned int multiplier)
 {
@@ -89,7 +95,7 @@
 	unsigned long *stats = ipi_data[smp_processor_id()].stats;
 
 	/* Clear pending IPI */
-	csr_clear(sip, SIE_SSIE);
+	csr_clear(CSR_SIP, SIE_SSIE);
 
 	while (true) {
 		unsigned long ops;
@@ -199,52 +205,3 @@
 	send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE);
 }
 
-/*
- * Performs an icache flush for the given MM context.  RISC-V has no direct
- * mechanism for instruction cache shoot downs, so instead we send an IPI that
- * informs the remote harts they need to flush their local instruction caches.
- * To avoid pathologically slow behavior in a common case (a bunch of
- * single-hart processes on a many-hart machine, ie 'make -j') we avoid the
- * IPIs for harts that are not currently executing a MM context and instead
- * schedule a deferred local instruction cache flush to be performed before
- * execution resumes on each hart.
- */
-void flush_icache_mm(struct mm_struct *mm, bool local)
-{
-	unsigned int cpu;
-	cpumask_t others, hmask, *mask;
-
-	preempt_disable();
-
-	/* Mark every hart's icache as needing a flush for this MM. */
-	mask = &mm->context.icache_stale_mask;
-	cpumask_setall(mask);
-	/* Flush this hart's I$ now, and mark it as flushed. */
-	cpu = smp_processor_id();
-	cpumask_clear_cpu(cpu, mask);
-	local_flush_icache_all();
-
-	/*
-	 * Flush the I$ of other harts concurrently executing, and mark them as
-	 * flushed.
-	 */
-	cpumask_andnot(&others, mm_cpumask(mm), cpumask_of(cpu));
-	local |= cpumask_empty(&others);
-	if (mm != current->active_mm || !local) {
-		cpumask_clear(&hmask);
-		riscv_cpuid_to_hartid_mask(&others, &hmask);
-		sbi_remote_fence_i(hmask.bits);
-	} else {
-		/*
-		 * It's assumed that at least one strongly ordered operation is
-		 * performed on this hart between setting a hart's cpumask bit
-		 * and scheduling this MM context on that hart.  Sending an SBI
-		 * remote message will do this, but in the case where no
-		 * messages are sent we still need to order this hart's writes
-		 * with flush_icache_deferred().
-		 */
-		smp_mb();
-	}
-
-	preempt_enable();
-}
diff --git a/arch/riscv/kernel/smpboot.c b/arch/riscv/kernel/smpboot.c
index eb533b5..7a0b622 100644
--- a/arch/riscv/kernel/smpboot.c
+++ b/arch/riscv/kernel/smpboot.c
@@ -47,6 +47,17 @@
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
+	int cpuid;
+
+	/* This covers non-smp usecase mandated by "nosmp" option */
+	if (max_cpus == 0)
+		return;
+
+	for_each_possible_cpu(cpuid) {
+		if (cpuid == smp_processor_id())
+			continue;
+		set_cpu_present(cpuid, true);
+	}
 }
 
 void __init setup_smp(void)
@@ -73,12 +84,19 @@
 		}
 
 		cpuid_to_hartid_map(cpuid) = hart;
-		set_cpu_possible(cpuid, true);
-		set_cpu_present(cpuid, true);
 		cpuid++;
 	}
 
 	BUG_ON(!found_boot_cpu);
+
+	if (cpuid > nr_cpu_ids)
+		pr_warn("Total number of cpus [%d] is greater than nr_cpus option value [%d]\n",
+			cpuid, nr_cpu_ids);
+
+	for (cpuid = 1; cpuid < nr_cpu_ids; cpuid++) {
+		if (cpuid_to_hartid_map(cpuid) != INVALID_HARTID)
+			set_cpu_possible(cpuid, true);
+	}
 }
 
 int __cpu_up(unsigned int cpu, struct task_struct *tidle)
diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c
index 4d40327..e80a5e8 100644
--- a/arch/riscv/kernel/stacktrace.c
+++ b/arch/riscv/kernel/stacktrace.c
@@ -33,9 +33,9 @@
 	unsigned long fp, sp, pc;
 
 	if (regs) {
-		fp = GET_FP(regs);
-		sp = GET_USP(regs);
-		pc = GET_IP(regs);
+		fp = frame_pointer(regs);
+		sp = user_stack_pointer(regs);
+		pc = instruction_pointer(regs);
 	} else if (task == NULL || task == current) {
 		const register unsigned long current_sp __asm__ ("sp");
 		fp = (unsigned long)__builtin_frame_address(0);
@@ -64,12 +64,8 @@
 		frame = (struct stackframe *)fp - 1;
 		sp = fp;
 		fp = frame->fp;
-#ifdef HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
 		pc = ftrace_graph_ret_addr(current, NULL, frame->ra,
 					   (unsigned long *)(fp - 8));
-#else
-		pc = frame->ra - 0x4;
-#endif
 	}
 }
 
@@ -82,8 +78,8 @@
 	unsigned long *ksp;
 
 	if (regs) {
-		sp = GET_USP(regs);
-		pc = GET_IP(regs);
+		sp = user_stack_pointer(regs);
+		pc = instruction_pointer(regs);
 	} else if (task == NULL || task == current) {
 		const register unsigned long current_sp __asm__ ("sp");
 		sp = current_sp;
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 24a9333..3d1a651 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -70,7 +70,7 @@
 	    && printk_ratelimit()) {
 		pr_info("%s[%d]: unhandled signal %d code 0x%x at 0x" REG_FMT,
 			tsk->comm, task_pid_nr(tsk), signo, code, addr);
-		print_vma_addr(KERN_CONT " in ", GET_IP(regs));
+		print_vma_addr(KERN_CONT " in ", instruction_pointer(regs));
 		pr_cont("\n");
 		show_regs(regs);
 	}
@@ -118,6 +118,17 @@
 DO_ERROR_INFO(do_trap_ecall_m,
 	SIGILL, ILL_ILLTRP, "environment call from M-mode");
 
+#ifdef CONFIG_GENERIC_BUG
+static inline unsigned long get_break_insn_length(unsigned long pc)
+{
+	bug_insn_t insn;
+
+	if (probe_kernel_address((bug_insn_t *)pc, insn))
+		return 0;
+	return (((insn & __INSN_LENGTH_MASK) == __INSN_LENGTH_32) ? 4UL : 2UL);
+}
+#endif /* CONFIG_GENERIC_BUG */
+
 asmlinkage void do_trap_break(struct pt_regs *regs)
 {
 #ifdef CONFIG_GENERIC_BUG
@@ -129,8 +140,8 @@
 		case BUG_TRAP_TYPE_NONE:
 			break;
 		case BUG_TRAP_TYPE_WARN:
-			regs->sepc += sizeof(bug_insn_t);
-			return;
+			regs->sepc += get_break_insn_length(regs->sepc);
+			break;
 		case BUG_TRAP_TYPE_BUG:
 			die(regs, "Kernel BUG");
 		}
@@ -145,11 +156,14 @@
 {
 	bug_insn_t insn;
 
-	if (pc < PAGE_OFFSET)
+	if (pc < VMALLOC_START)
 		return 0;
 	if (probe_kernel_address((bug_insn_t *)pc, insn))
 		return 0;
-	return (insn == __BUG_INSN);
+	if ((insn & __INSN_LENGTH_MASK) == __INSN_LENGTH_32)
+		return (insn == __BUG_INSN_32);
+	else
+		return ((insn & __COMPRESSED_INSN_MASK) == __BUG_INSN_16);
 }
 #endif /* CONFIG_GENERIC_BUG */
 
@@ -159,9 +173,9 @@
 	 * Set sup0 scratch register to 0, indicating to exception vector
 	 * that we are presently executing in the kernel
 	 */
-	csr_write(sscratch, 0);
+	csr_write(CSR_SSCRATCH, 0);
 	/* Set the exception vector address */
-	csr_write(stvec, &handle_exception);
+	csr_write(CSR_STVEC, &handle_exception);
 	/* Enable all interrupts */
-	csr_write(sie, -1);
+	csr_write(CSR_SIE, -1);
 }
diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile
index fec62b2..b07b765 100644
--- a/arch/riscv/kernel/vdso/Makefile
+++ b/arch/riscv/kernel/vdso/Makefile
@@ -36,7 +36,7 @@
 # these symbols in the kernel code rather than hand-coded addresses.
 
 SYSCFLAGS_vdso.so.dbg = -shared -s -Wl,-soname=linux-vdso.so.1 \
-                            $(call cc-ldoption, -Wl$(comma)--hash-style=both)
+	-Wl,--hash-style=both
 $(obj)/vdso-dummy.o: $(src)/vdso.lds $(obj)/rt_sigreturn.o FORCE
 	$(call if_changed,vdsold)
 
diff --git a/arch/riscv/mm/Makefile b/arch/riscv/mm/Makefile
index b68aac7..8db56914 100644
--- a/arch/riscv/mm/Makefile
+++ b/arch/riscv/mm/Makefile
@@ -9,3 +9,5 @@
 obj-y += extable.o
 obj-y += ioremap.o
 obj-y += cacheflush.o
+obj-y += context.o
+obj-y += sifive_l2_cache.o
diff --git a/arch/riscv/mm/cacheflush.c b/arch/riscv/mm/cacheflush.c
index 498c0a0..497b7d07 100644
--- a/arch/riscv/mm/cacheflush.c
+++ b/arch/riscv/mm/cacheflush.c
@@ -14,6 +14,67 @@
 #include <asm/pgtable.h>
 #include <asm/cacheflush.h>
 
+#ifdef CONFIG_SMP
+
+#include <asm/sbi.h>
+
+void flush_icache_all(void)
+{
+	sbi_remote_fence_i(NULL);
+}
+
+/*
+ * Performs an icache flush for the given MM context.  RISC-V has no direct
+ * mechanism for instruction cache shoot downs, so instead we send an IPI that
+ * informs the remote harts they need to flush their local instruction caches.
+ * To avoid pathologically slow behavior in a common case (a bunch of
+ * single-hart processes on a many-hart machine, ie 'make -j') we avoid the
+ * IPIs for harts that are not currently executing a MM context and instead
+ * schedule a deferred local instruction cache flush to be performed before
+ * execution resumes on each hart.
+ */
+void flush_icache_mm(struct mm_struct *mm, bool local)
+{
+	unsigned int cpu;
+	cpumask_t others, hmask, *mask;
+
+	preempt_disable();
+
+	/* Mark every hart's icache as needing a flush for this MM. */
+	mask = &mm->context.icache_stale_mask;
+	cpumask_setall(mask);
+	/* Flush this hart's I$ now, and mark it as flushed. */
+	cpu = smp_processor_id();
+	cpumask_clear_cpu(cpu, mask);
+	local_flush_icache_all();
+
+	/*
+	 * Flush the I$ of other harts concurrently executing, and mark them as
+	 * flushed.
+	 */
+	cpumask_andnot(&others, mm_cpumask(mm), cpumask_of(cpu));
+	local |= cpumask_empty(&others);
+	if (mm != current->active_mm || !local) {
+		cpumask_clear(&hmask);
+		riscv_cpuid_to_hartid_mask(&others, &hmask);
+		sbi_remote_fence_i(hmask.bits);
+	} else {
+		/*
+		 * It's assumed that at least one strongly ordered operation is
+		 * performed on this hart between setting a hart's cpumask bit
+		 * and scheduling this MM context on that hart.  Sending an SBI
+		 * remote message will do this, but in the case where no
+		 * messages are sent we still need to order this hart's writes
+		 * with flush_icache_deferred().
+		 */
+		smp_mb();
+	}
+
+	preempt_enable();
+}
+
+#endif /* CONFIG_SMP */
+
 void flush_icache_pte(pte_t pte)
 {
 	struct page *page = pte_page(pte);
diff --git a/arch/riscv/mm/context.c b/arch/riscv/mm/context.c
new file mode 100644
index 0000000..89ceb3c
--- /dev/null
+++ b/arch/riscv/mm/context.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2012 Regents of the University of California
+ * Copyright (C) 2017 SiFive
+ */
+
+#include <linux/mm.h>
+#include <asm/tlbflush.h>
+#include <asm/cacheflush.h>
+
+/*
+ * When necessary, performs a deferred icache flush for the given MM context,
+ * on the local CPU.  RISC-V has no direct mechanism for instruction cache
+ * shoot downs, so instead we send an IPI that informs the remote harts they
+ * need to flush their local instruction caches.  To avoid pathologically slow
+ * behavior in a common case (a bunch of single-hart processes on a many-hart
+ * machine, ie 'make -j') we avoid the IPIs for harts that are not currently
+ * executing a MM context and instead schedule a deferred local instruction
+ * cache flush to be performed before execution resumes on each hart.  This
+ * actually performs that local instruction cache flush, which implicitly only
+ * refers to the current hart.
+ */
+static inline void flush_icache_deferred(struct mm_struct *mm)
+{
+#ifdef CONFIG_SMP
+	unsigned int cpu = smp_processor_id();
+	cpumask_t *mask = &mm->context.icache_stale_mask;
+
+	if (cpumask_test_cpu(cpu, mask)) {
+		cpumask_clear_cpu(cpu, mask);
+		/*
+		 * Ensure the remote hart's writes are visible to this hart.
+		 * This pairs with a barrier in flush_icache_mm.
+		 */
+		smp_mb();
+		local_flush_icache_all();
+	}
+
+#endif
+}
+
+void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+	struct task_struct *task)
+{
+	unsigned int cpu;
+
+	if (unlikely(prev == next))
+		return;
+
+	/*
+	 * Mark the current MM context as inactive, and the next as
+	 * active.  This is at least used by the icache flushing
+	 * routines in order to determine who should be flushed.
+	 */
+	cpu = smp_processor_id();
+
+	cpumask_clear_cpu(cpu, mm_cpumask(prev));
+	cpumask_set_cpu(cpu, mm_cpumask(next));
+
+	/*
+	 * Use the old spbtr name instead of using the current satp
+	 * name to support binutils 2.29 which doesn't know about the
+	 * privileged ISA 1.10 yet.
+	 */
+	csr_write(sptbr, virt_to_pfn(next->pgd) | SATP_MODE);
+	local_flush_tlb_all();
+
+	flush_icache_deferred(next);
+}
diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c
index 88401d5..cec8be9 100644
--- a/arch/riscv/mm/fault.c
+++ b/arch/riscv/mm/fault.c
@@ -229,8 +229,9 @@
 		pte_t *pte_k;
 		int index;
 
+		/* User mode accesses just cause a SIGSEGV */
 		if (user_mode(regs))
-			goto bad_area;
+			return do_trap(regs, SIGSEGV, code, addr, tsk);
 
 		/*
 		 * Synchronize this task's top level page-table
@@ -239,13 +240,9 @@
 		 * Do _not_ use "tsk->active_mm->pgd" here.
 		 * We might be inside an interrupt in the middle
 		 * of a task switch.
-		 *
-		 * Note: Use the old spbtr name instead of using the current
-		 * satp name to support binutils 2.29 which doesn't know about
-		 * the privileged ISA 1.10 yet.
 		 */
 		index = pgd_index(addr);
-		pgd = (pgd_t *)pfn_to_virt(csr_read(sptbr)) + index;
+		pgd = (pgd_t *)pfn_to_virt(csr_read(CSR_SATP)) + index;
 		pgd_k = init_mm.pgd + index;
 
 		if (!pgd_present(*pgd_k))
diff --git a/arch/riscv/mm/sifive_l2_cache.c b/arch/riscv/mm/sifive_l2_cache.c
new file mode 100644
index 0000000..4eb6461
--- /dev/null
+++ b/arch/riscv/mm/sifive_l2_cache.c
@@ -0,0 +1,175 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SiFive L2 cache controller Driver
+ *
+ * Copyright (C) 2018-2019 SiFive, Inc.
+ *
+ */
+#include <linux/debugfs.h>
+#include <linux/interrupt.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+#include <asm/sifive_l2_cache.h>
+
+#define SIFIVE_L2_DIRECCFIX_LOW 0x100
+#define SIFIVE_L2_DIRECCFIX_HIGH 0x104
+#define SIFIVE_L2_DIRECCFIX_COUNT 0x108
+
+#define SIFIVE_L2_DATECCFIX_LOW 0x140
+#define SIFIVE_L2_DATECCFIX_HIGH 0x144
+#define SIFIVE_L2_DATECCFIX_COUNT 0x148
+
+#define SIFIVE_L2_DATECCFAIL_LOW 0x160
+#define SIFIVE_L2_DATECCFAIL_HIGH 0x164
+#define SIFIVE_L2_DATECCFAIL_COUNT 0x168
+
+#define SIFIVE_L2_CONFIG 0x00
+#define SIFIVE_L2_WAYENABLE 0x08
+#define SIFIVE_L2_ECCINJECTERR 0x40
+
+#define SIFIVE_L2_MAX_ECCINTR 3
+
+static void __iomem *l2_base;
+static int g_irq[SIFIVE_L2_MAX_ECCINTR];
+
+enum {
+	DIR_CORR = 0,
+	DATA_CORR,
+	DATA_UNCORR,
+};
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *sifive_test;
+
+static ssize_t l2_write(struct file *file, const char __user *data,
+			size_t count, loff_t *ppos)
+{
+	unsigned int val;
+
+	if (kstrtouint_from_user(data, count, 0, &val))
+		return -EINVAL;
+	if ((val >= 0 && val < 0xFF) || (val >= 0x10000 && val < 0x100FF))
+		writel(val, l2_base + SIFIVE_L2_ECCINJECTERR);
+	else
+		return -EINVAL;
+	return count;
+}
+
+static const struct file_operations l2_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.write = l2_write
+};
+
+static void setup_sifive_debug(void)
+{
+	sifive_test = debugfs_create_dir("sifive_l2_cache", NULL);
+
+	debugfs_create_file("sifive_debug_inject_error", 0200,
+			    sifive_test, NULL, &l2_fops);
+}
+#endif
+
+static void l2_config_read(void)
+{
+	u32 regval, val;
+
+	regval = readl(l2_base + SIFIVE_L2_CONFIG);
+	val = regval & 0xFF;
+	pr_info("L2CACHE: No. of Banks in the cache: %d\n", val);
+	val = (regval & 0xFF00) >> 8;
+	pr_info("L2CACHE: No. of ways per bank: %d\n", val);
+	val = (regval & 0xFF0000) >> 16;
+	pr_info("L2CACHE: Sets per bank: %llu\n", (uint64_t)1 << val);
+	val = (regval & 0xFF000000) >> 24;
+	pr_info("L2CACHE: Bytes per cache block: %llu\n", (uint64_t)1 << val);
+
+	regval = readl(l2_base + SIFIVE_L2_WAYENABLE);
+	pr_info("L2CACHE: Index of the largest way enabled: %d\n", regval);
+}
+
+static const struct of_device_id sifive_l2_ids[] = {
+	{ .compatible = "sifive,fu540-c000-ccache" },
+	{ /* end of table */ },
+};
+
+static ATOMIC_NOTIFIER_HEAD(l2_err_chain);
+
+int register_sifive_l2_error_notifier(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_register(&l2_err_chain, nb);
+}
+EXPORT_SYMBOL_GPL(register_sifive_l2_error_notifier);
+
+int unregister_sifive_l2_error_notifier(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_unregister(&l2_err_chain, nb);
+}
+EXPORT_SYMBOL_GPL(unregister_sifive_l2_error_notifier);
+
+static irqreturn_t l2_int_handler(int irq, void *device)
+{
+	unsigned int regval, add_h, add_l;
+
+	if (irq == g_irq[DIR_CORR]) {
+		add_h = readl(l2_base + SIFIVE_L2_DIRECCFIX_HIGH);
+		add_l = readl(l2_base + SIFIVE_L2_DIRECCFIX_LOW);
+		pr_err("L2CACHE: DirError @ 0x%08X.%08X\n", add_h, add_l);
+		regval = readl(l2_base + SIFIVE_L2_DIRECCFIX_COUNT);
+		atomic_notifier_call_chain(&l2_err_chain, SIFIVE_L2_ERR_TYPE_CE,
+					   "DirECCFix");
+	}
+	if (irq == g_irq[DATA_CORR]) {
+		add_h = readl(l2_base + SIFIVE_L2_DATECCFIX_HIGH);
+		add_l = readl(l2_base + SIFIVE_L2_DATECCFIX_LOW);
+		pr_err("L2CACHE: DataError @ 0x%08X.%08X\n", add_h, add_l);
+		regval = readl(l2_base + SIFIVE_L2_DATECCFIX_COUNT);
+		atomic_notifier_call_chain(&l2_err_chain, SIFIVE_L2_ERR_TYPE_CE,
+					   "DatECCFix");
+	}
+	if (irq == g_irq[DATA_UNCORR]) {
+		add_h = readl(l2_base + SIFIVE_L2_DATECCFAIL_HIGH);
+		add_l = readl(l2_base + SIFIVE_L2_DATECCFAIL_LOW);
+		pr_err("L2CACHE: DataFail @ 0x%08X.%08X\n", add_h, add_l);
+		regval = readl(l2_base + SIFIVE_L2_DATECCFAIL_COUNT);
+		atomic_notifier_call_chain(&l2_err_chain, SIFIVE_L2_ERR_TYPE_UE,
+					   "DatECCFail");
+	}
+
+	return IRQ_HANDLED;
+}
+
+int __init sifive_l2_init(void)
+{
+	struct device_node *np;
+	struct resource res;
+	int i, rc;
+
+	np = of_find_matching_node(NULL, sifive_l2_ids);
+	if (!np)
+		return -ENODEV;
+
+	if (of_address_to_resource(np, 0, &res))
+		return -ENODEV;
+
+	l2_base = ioremap(res.start, resource_size(&res));
+	if (!l2_base)
+		return -ENOMEM;
+
+	for (i = 0; i < SIFIVE_L2_MAX_ECCINTR; i++) {
+		g_irq[i] = irq_of_parse_and_map(np, i);
+		rc = request_irq(g_irq[i], l2_int_handler, 0, "l2_ecc", NULL);
+		if (rc) {
+			pr_err("L2CACHE: Could not request IRQ %d\n", g_irq[i]);
+			return rc;
+		}
+	}
+
+	l2_config_read();
+
+#ifdef CONFIG_DEBUG_FS
+	setup_sifive_debug();
+#endif
+	return 0;
+}
+device_initcall(sifive_l2_init);
diff --git a/arch/um/include/asm/mmu_context.h b/arch/um/include/asm/mmu_context.h
index fca34b2..9f4b4bb 100644
--- a/arch/um/include/asm/mmu_context.h
+++ b/arch/um/include/asm/mmu_context.h
@@ -22,7 +22,6 @@
 }
 extern void arch_exit_mmap(struct mm_struct *mm);
 static inline void arch_unmap(struct mm_struct *mm,
-			struct vm_area_struct *vma,
 			unsigned long start, unsigned long end)
 {
 }
diff --git a/arch/unicore32/include/asm/mmu_context.h b/arch/unicore32/include/asm/mmu_context.h
index 5c205a9..9f06ea5 100644
--- a/arch/unicore32/include/asm/mmu_context.h
+++ b/arch/unicore32/include/asm/mmu_context.h
@@ -88,7 +88,6 @@
 }
 
 static inline void arch_unmap(struct mm_struct *mm,
-			struct vm_area_struct *vma,
 			unsigned long start, unsigned long end)
 {
 }
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 93dff19..9024236 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -278,8 +278,8 @@
 	mpx_mm_init(mm);
 }
 
-static inline void arch_unmap(struct mm_struct *mm, struct vm_area_struct *vma,
-			      unsigned long start, unsigned long end)
+static inline void arch_unmap(struct mm_struct *mm, unsigned long start,
+			      unsigned long end)
 {
 	/*
 	 * mpx_notify_unmap() goes and reads a rarely-hot
@@ -299,7 +299,7 @@
 	 * consistently wrong.
 	 */
 	if (unlikely(cpu_feature_enabled(X86_FEATURE_MPX)))
-		mpx_notify_unmap(mm, vma, start, end);
+		mpx_notify_unmap(mm, start, end);
 }
 
 /*
diff --git a/arch/x86/include/asm/mpx.h b/arch/x86/include/asm/mpx.h
index d0b1434..143a5c1 100644
--- a/arch/x86/include/asm/mpx.h
+++ b/arch/x86/include/asm/mpx.h
@@ -64,12 +64,15 @@
 };
 
 #ifdef CONFIG_X86_INTEL_MPX
-int mpx_fault_info(struct mpx_fault_info *info, struct pt_regs *regs);
-int mpx_handle_bd_fault(void);
+
+extern int mpx_fault_info(struct mpx_fault_info *info, struct pt_regs *regs);
+extern int mpx_handle_bd_fault(void);
+
 static inline int kernel_managing_mpx_tables(struct mm_struct *mm)
 {
 	return (mm->context.bd_addr != MPX_INVALID_BOUNDS_DIR);
 }
+
 static inline void mpx_mm_init(struct mm_struct *mm)
 {
 	/*
@@ -78,11 +81,10 @@
 	 */
 	mm->context.bd_addr = MPX_INVALID_BOUNDS_DIR;
 }
-void mpx_notify_unmap(struct mm_struct *mm, struct vm_area_struct *vma,
-		      unsigned long start, unsigned long end);
 
-unsigned long mpx_unmapped_area_check(unsigned long addr, unsigned long len,
-		unsigned long flags);
+extern void mpx_notify_unmap(struct mm_struct *mm, unsigned long start, unsigned long end);
+extern unsigned long mpx_unmapped_area_check(unsigned long addr, unsigned long len, unsigned long flags);
+
 #else
 static inline int mpx_fault_info(struct mpx_fault_info *info, struct pt_regs *regs)
 {
@@ -100,7 +102,6 @@
 {
 }
 static inline void mpx_notify_unmap(struct mm_struct *mm,
-				    struct vm_area_struct *vma,
 				    unsigned long start, unsigned long end)
 {
 }
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 59726aa..0d1c47c 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -881,9 +881,10 @@
  * the virtual address region start...end have already been split if
  * necessary, and the 'vma' is the first vma in this range (start -> end).
  */
-void mpx_notify_unmap(struct mm_struct *mm, struct vm_area_struct *vma,
-		unsigned long start, unsigned long end)
+void mpx_notify_unmap(struct mm_struct *mm, unsigned long start,
+		      unsigned long end)
 {
+	struct vm_area_struct *vma;
 	int ret;
 
 	/*
@@ -902,11 +903,12 @@
 	 * which should not occur normally. Being strict about it here
 	 * helps ensure that we do not have an exploitable stack overflow.
 	 */
-	do {
+	vma = find_vma(mm, start);
+	while (vma && vma->vm_start < end) {
 		if (vma->vm_flags & VM_MPX)
 			return;
 		vma = vma->vm_next;
-	} while (vma && vma->vm_start < end);
+	}
 
 	ret = mpx_unmap_tables(mm, start, end);
 	if (ret)
diff --git a/drivers/amba/tegra-ahb.c b/drivers/amba/tegra-ahb.c
index b0b688c..3751d81 100644
--- a/drivers/amba/tegra-ahb.c
+++ b/drivers/amba/tegra-ahb.c
@@ -170,8 +170,7 @@
 EXPORT_SYMBOL(tegra_ahb_enable_smmu);
 #endif
 
-#ifdef CONFIG_PM
-static int tegra_ahb_suspend(struct device *dev)
+static int __maybe_unused tegra_ahb_suspend(struct device *dev)
 {
 	int i;
 	struct tegra_ahb *ahb = dev_get_drvdata(dev);
@@ -181,7 +180,7 @@
 	return 0;
 }
 
-static int tegra_ahb_resume(struct device *dev)
+static int __maybe_unused tegra_ahb_resume(struct device *dev)
 {
 	int i;
 	struct tegra_ahb *ahb = dev_get_drvdata(dev);
@@ -190,7 +189,6 @@
 		gizmo_writel(ahb, ahb->ctx[i], tegra_ahb_gizmo[i]);
 	return 0;
 }
-#endif
 
 static UNIVERSAL_DEV_PM_OPS(tegra_ahb_pm,
 			    tegra_ahb_suspend,
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 4832148..6bcaa4e 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -387,7 +387,7 @@
 	  This options enables support for the ARM global timer unit
 
 config ARM_TIMER_SP804
-	bool "Support for Dual Timer SP804 module"
+	bool "Support for Dual Timer SP804 module" if COMPILE_TEST
 	depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select TIMER_OF if OF
@@ -407,8 +407,11 @@
 	  This options enables support for the ARMv7M system timer unit
 
 config ATMEL_PIT
+	bool "Atmel PIT support" if COMPILE_TEST
+	depends on HAS_IOMEM
 	select TIMER_OF if OF
-	def_bool SOC_AT91SAM9 || SOC_SAMA5
+	help
+	  Support for the Periodic Interval Timer found on Atmel SoCs.
 
 config ATMEL_ST
 	bool "Atmel ST timer support" if COMPILE_TEST
@@ -418,6 +421,13 @@
 	help
 	  Support for the Atmel ST timer.
 
+config ATMEL_TCB_CLKSRC
+	bool "Atmel TC Block timer driver" if COMPILE_TEST
+	depends on HAS_IOMEM
+	select TIMER_OF if OF
+	help
+	  Support for Timer Counter Blocks on Atmel SoCs.
+
 config CLKSRC_EXYNOS_MCT
 	bool "Exynos multi core timer driver" if COMPILE_TEST
 	depends on ARM || ARM64
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index dba4eff..236858f 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -3,7 +3,7 @@
 obj-$(CONFIG_TIMER_PROBE)	+= timer-probe.o
 obj-$(CONFIG_ATMEL_PIT)		+= timer-atmel-pit.o
 obj-$(CONFIG_ATMEL_ST)		+= timer-atmel-st.o
-obj-$(CONFIG_ATMEL_TCB_CLKSRC)	+= tcb_clksrc.o
+obj-$(CONFIG_ATMEL_TCB_CLKSRC)	+= timer-atmel-tcb.o
 obj-$(CONFIG_X86_PM_TIMER)	+= acpi_pm.o
 obj-$(CONFIG_SCx200HR_TIMER)	+= scx200_hrt.o
 obj-$(CONFIG_CS5535_CLOCK_EVENT_SRC)	+= timer-cs5535.o
diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/timer-atmel-tcb.c
similarity index 80%
rename from drivers/clocksource/tcb_clksrc.c
rename to drivers/clocksource/timer-atmel-tcb.c
index f987027..6ed31f9 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/timer-atmel-tcb.c
@@ -9,9 +9,11 @@
 #include <linux/err.h>
 #include <linux/ioport.h>
 #include <linux/io.h>
-#include <linux/platform_device.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/sched_clock.h>
 #include <linux/syscore_ops.h>
-#include <linux/atmel_tc.h>
+#include <soc/at91/atmel_tcb.h>
 
 
 /*
@@ -28,13 +30,6 @@
  *     source, used in either periodic or oneshot mode.  This runs
  *     at 32 KiHZ, and can handle delays of up to two seconds.
  *
- * A boot clocksource and clockevent source are also currently needed,
- * unless the relevant platforms (ARM/AT91, AVR32/AT32) are changed so
- * this code can be used when init_timers() is called, well before most
- * devices are set up.  (Some low end AT91 parts, which can run uClinux,
- * have only the timers in one TC block... they currently don't support
- * the tclib code, because of that initialization issue.)
- *
  * REVISIT behavior during system suspend states... we should disable
  * all clocks and save the power.  Easily done for clockevent devices,
  * but clocksources won't necessarily get the needed notifications.
@@ -112,7 +107,6 @@
 }
 
 static struct clocksource clksrc = {
-	.name           = "tcb_clksrc",
 	.rating         = 200,
 	.read           = tc_get_cycles,
 	.mask           = CLOCKSOURCE_MASK(32),
@@ -121,6 +115,16 @@
 	.resume		= tc_clksrc_resume,
 };
 
+static u64 notrace tc_sched_clock_read(void)
+{
+	return tc_get_cycles(&clksrc);
+}
+
+static u64 notrace tc_sched_clock_read32(void)
+{
+	return tc_get_cycles32(&clksrc);
+}
+
 #ifdef CONFIG_GENERIC_CLOCKEVENTS
 
 struct tc_clkevt_device {
@@ -214,7 +218,6 @@
 
 static struct tc_clkevt_device clkevt = {
 	.clkevt	= {
-		.name			= "tc_clkevt",
 		.features		= CLOCK_EVT_FEAT_PERIODIC |
 					  CLOCK_EVT_FEAT_ONESHOT,
 		/* Should be lower than at91rm9200's system timer */
@@ -330,39 +333,74 @@
 	writel(ATMEL_TC_SYNC, tcaddr + ATMEL_TC_BCR);
 }
 
-static int __init tcb_clksrc_init(void)
-{
-	static char bootinfo[] __initdata
-		= KERN_DEBUG "%s: tc%d at %d.%03d MHz\n";
+static const u8 atmel_tcb_divisors[5] = { 2, 8, 32, 128, 0, };
 
-	struct platform_device *pdev;
-	struct atmel_tc *tc;
+static const struct of_device_id atmel_tcb_of_match[] = {
+	{ .compatible = "atmel,at91rm9200-tcb", .data = (void *)16, },
+	{ .compatible = "atmel,at91sam9x5-tcb", .data = (void *)32, },
+	{ /* sentinel */ }
+};
+
+static int __init tcb_clksrc_init(struct device_node *node)
+{
+	struct atmel_tc tc;
 	struct clk *t0_clk;
+	const struct of_device_id *match;
+	u64 (*tc_sched_clock)(void);
 	u32 rate, divided_rate = 0;
 	int best_divisor_idx = -1;
 	int clk32k_divisor_idx = -1;
+	int bits;
 	int i;
 	int ret;
 
-	tc = atmel_tc_alloc(CONFIG_ATMEL_TCB_CLKSRC_BLOCK);
-	if (!tc) {
-		pr_debug("can't alloc TC for clocksource\n");
-		return -ENODEV;
-	}
-	tcaddr = tc->regs;
-	pdev = tc->pdev;
+	/* Protect against multiple calls */
+	if (tcaddr)
+		return 0;
 
-	t0_clk = tc->clk[0];
+	tc.regs = of_iomap(node->parent, 0);
+	if (!tc.regs)
+		return -ENXIO;
+
+	t0_clk = of_clk_get_by_name(node->parent, "t0_clk");
+	if (IS_ERR(t0_clk))
+		return PTR_ERR(t0_clk);
+
+	tc.slow_clk = of_clk_get_by_name(node->parent, "slow_clk");
+	if (IS_ERR(tc.slow_clk))
+		return PTR_ERR(tc.slow_clk);
+
+	tc.clk[0] = t0_clk;
+	tc.clk[1] = of_clk_get_by_name(node->parent, "t1_clk");
+	if (IS_ERR(tc.clk[1]))
+		tc.clk[1] = t0_clk;
+	tc.clk[2] = of_clk_get_by_name(node->parent, "t2_clk");
+	if (IS_ERR(tc.clk[2]))
+		tc.clk[2] = t0_clk;
+
+	tc.irq[2] = of_irq_get(node->parent, 2);
+	if (tc.irq[2] <= 0) {
+		tc.irq[2] = of_irq_get(node->parent, 0);
+		if (tc.irq[2] <= 0)
+			return -EINVAL;
+	}
+
+	match = of_match_node(atmel_tcb_of_match, node->parent);
+	bits = (uintptr_t)match->data;
+
+	for (i = 0; i < ARRAY_SIZE(tc.irq); i++)
+		writel(ATMEL_TC_ALL_IRQ, tc.regs + ATMEL_TC_REG(i, IDR));
+
 	ret = clk_prepare_enable(t0_clk);
 	if (ret) {
 		pr_debug("can't enable T0 clk\n");
-		goto err_free_tc;
+		return ret;
 	}
 
 	/* How fast will we be counting?  Pick something over 5 MHz.  */
 	rate = (u32) clk_get_rate(t0_clk);
-	for (i = 0; i < 5; i++) {
-		unsigned divisor = atmel_tc_divisors[i];
+	for (i = 0; i < ARRAY_SIZE(atmel_tcb_divisors); i++) {
+		unsigned divisor = atmel_tcb_divisors[i];
 		unsigned tmp;
 
 		/* remember 32 KiHz clock for later */
@@ -381,27 +419,31 @@
 		best_divisor_idx = i;
 	}
 
-
-	printk(bootinfo, clksrc.name, CONFIG_ATMEL_TCB_CLKSRC_BLOCK,
-			divided_rate / 1000000,
+	clksrc.name = kbasename(node->parent->full_name);
+	clkevt.clkevt.name = kbasename(node->parent->full_name);
+	pr_debug("%s at %d.%03d MHz\n", clksrc.name, divided_rate / 1000000,
 			((divided_rate % 1000000) + 500) / 1000);
 
-	if (tc->tcb_config && tc->tcb_config->counter_width == 32) {
+	tcaddr = tc.regs;
+
+	if (bits == 32) {
 		/* use apropriate function to read 32 bit counter */
 		clksrc.read = tc_get_cycles32;
 		/* setup ony channel 0 */
-		tcb_setup_single_chan(tc, best_divisor_idx);
+		tcb_setup_single_chan(&tc, best_divisor_idx);
+		tc_sched_clock = tc_sched_clock_read32;
 	} else {
-		/* tclib will give us three clocks no matter what the
+		/* we have three clocks no matter what the
 		 * underlying platform supports.
 		 */
-		ret = clk_prepare_enable(tc->clk[1]);
+		ret = clk_prepare_enable(tc.clk[1]);
 		if (ret) {
 			pr_debug("can't enable T1 clk\n");
 			goto err_disable_t0;
 		}
 		/* setup both channel 0 & 1 */
-		tcb_setup_dual_chan(tc, best_divisor_idx);
+		tcb_setup_dual_chan(&tc, best_divisor_idx);
+		tc_sched_clock = tc_sched_clock_read;
 	}
 
 	/* and away we go! */
@@ -410,24 +452,26 @@
 		goto err_disable_t1;
 
 	/* channel 2:  periodic and oneshot timer support */
-	ret = setup_clkevents(tc, clk32k_divisor_idx);
+	ret = setup_clkevents(&tc, clk32k_divisor_idx);
 	if (ret)
 		goto err_unregister_clksrc;
 
+	sched_clock_register(tc_sched_clock, 32, divided_rate);
+
 	return 0;
 
 err_unregister_clksrc:
 	clocksource_unregister(&clksrc);
 
 err_disable_t1:
-	if (!tc->tcb_config || tc->tcb_config->counter_width != 32)
-		clk_disable_unprepare(tc->clk[1]);
+	if (bits != 32)
+		clk_disable_unprepare(tc.clk[1]);
 
 err_disable_t0:
 	clk_disable_unprepare(t0_clk);
 
-err_free_tc:
-	atmel_tc_free(tc);
+	tcaddr = NULL;
+
 	return ret;
 }
-arch_initcall(tcb_clksrc_init);
+TIMER_OF_DECLARE(atmel_tcb_clksrc, "atmel,tcb-timer", tcb_clksrc_init);
diff --git a/drivers/clocksource/timer-milbeaut.c b/drivers/clocksource/timer-milbeaut.c
index f2019a8..fa9fb4e 100644
--- a/drivers/clocksource/timer-milbeaut.c
+++ b/drivers/clocksource/timer-milbeaut.c
@@ -26,8 +26,8 @@
 #define MLB_TMR_TMCSR_CSL_DIV2	0
 #define MLB_TMR_DIV_CNT		2
 
-#define MLB_TMR_SRC_CH  (1)
-#define MLB_TMR_EVT_CH  (0)
+#define MLB_TMR_SRC_CH		1
+#define MLB_TMR_EVT_CH		0
 
 #define MLB_TMR_SRC_CH_OFS	(MLB_TMR_REGSZPCH * MLB_TMR_SRC_CH)
 #define MLB_TMR_EVT_CH_OFS	(MLB_TMR_REGSZPCH * MLB_TMR_EVT_CH)
@@ -43,6 +43,8 @@
 #define MLB_TMR_EVT_TMRLR2_OFS	(MLB_TMR_EVT_CH_OFS + MLB_TMR_TMRLR2_OFS)
 
 #define MLB_TIMER_RATING	500
+#define MLB_TIMER_ONESHOT	0
+#define MLB_TIMER_PERIODIC	1
 
 static irqreturn_t mlb_timer_interrupt(int irq, void *dev_id)
 {
@@ -59,27 +61,53 @@
 	return IRQ_HANDLED;
 }
 
+static void mlb_evt_timer_start(struct timer_of *to, bool periodic)
+{
+	u32 val = MLB_TMR_TMCSR_CSL_DIV2;
+
+	val |= MLB_TMR_TMCSR_CNTE | MLB_TMR_TMCSR_TRG | MLB_TMR_TMCSR_INTE;
+	if (periodic)
+		val |= MLB_TMR_TMCSR_RELD;
+	writel_relaxed(val, timer_of_base(to) + MLB_TMR_EVT_TMCSR_OFS);
+}
+
+static void mlb_evt_timer_stop(struct timer_of *to)
+{
+	u32 val = readl_relaxed(timer_of_base(to) + MLB_TMR_EVT_TMCSR_OFS);
+
+	val &= ~MLB_TMR_TMCSR_CNTE;
+	writel_relaxed(val, timer_of_base(to) + MLB_TMR_EVT_TMCSR_OFS);
+}
+
+static void mlb_evt_timer_register_count(struct timer_of *to, unsigned long cnt)
+{
+	writel_relaxed(cnt, timer_of_base(to) + MLB_TMR_EVT_TMRLR1_OFS);
+}
+
 static int mlb_set_state_periodic(struct clock_event_device *clk)
 {
 	struct timer_of *to = to_timer_of(clk);
-	u32 val = MLB_TMR_TMCSR_CSL_DIV2;
 
-	writel_relaxed(val, timer_of_base(to) + MLB_TMR_EVT_TMCSR_OFS);
-
-	writel_relaxed(to->of_clk.period, timer_of_base(to) +
-				MLB_TMR_EVT_TMRLR1_OFS);
-	val |= MLB_TMR_TMCSR_RELD | MLB_TMR_TMCSR_CNTE |
-		MLB_TMR_TMCSR_TRG | MLB_TMR_TMCSR_INTE;
-	writel_relaxed(val, timer_of_base(to) + MLB_TMR_EVT_TMCSR_OFS);
+	mlb_evt_timer_stop(to);
+	mlb_evt_timer_register_count(to, to->of_clk.period);
+	mlb_evt_timer_start(to, MLB_TIMER_PERIODIC);
 	return 0;
 }
 
 static int mlb_set_state_oneshot(struct clock_event_device *clk)
 {
 	struct timer_of *to = to_timer_of(clk);
-	u32 val = MLB_TMR_TMCSR_CSL_DIV2;
 
-	writel_relaxed(val, timer_of_base(to) + MLB_TMR_EVT_TMCSR_OFS);
+	mlb_evt_timer_stop(to);
+	mlb_evt_timer_start(to, MLB_TIMER_ONESHOT);
+	return 0;
+}
+
+static int mlb_set_state_shutdown(struct clock_event_device *clk)
+{
+	struct timer_of *to = to_timer_of(clk);
+
+	mlb_evt_timer_stop(to);
 	return 0;
 }
 
@@ -88,22 +116,21 @@
 {
 	struct timer_of *to = to_timer_of(clk);
 
-	writel_relaxed(event, timer_of_base(to) + MLB_TMR_EVT_TMRLR1_OFS);
-	writel_relaxed(MLB_TMR_TMCSR_CSL_DIV2 |
-			MLB_TMR_TMCSR_CNTE | MLB_TMR_TMCSR_INTE |
-			MLB_TMR_TMCSR_TRG, timer_of_base(to) +
-			MLB_TMR_EVT_TMCSR_OFS);
+	mlb_evt_timer_stop(to);
+	mlb_evt_timer_register_count(to, event);
+	mlb_evt_timer_start(to, MLB_TIMER_ONESHOT);
 	return 0;
 }
 
 static int mlb_config_clock_source(struct timer_of *to)
 {
-	writel_relaxed(0, timer_of_base(to) + MLB_TMR_SRC_TMCSR_OFS);
-	writel_relaxed(~0, timer_of_base(to) + MLB_TMR_SRC_TMR_OFS);
+	u32 val = MLB_TMR_TMCSR_CSL_DIV2;
+
+	writel_relaxed(val, timer_of_base(to) + MLB_TMR_SRC_TMCSR_OFS);
 	writel_relaxed(~0, timer_of_base(to) + MLB_TMR_SRC_TMRLR1_OFS);
 	writel_relaxed(~0, timer_of_base(to) + MLB_TMR_SRC_TMRLR2_OFS);
-	writel_relaxed(BIT(4) | BIT(1) | BIT(0), timer_of_base(to) +
-		MLB_TMR_SRC_TMCSR_OFS);
+	val |= MLB_TMR_TMCSR_RELD | MLB_TMR_TMCSR_CNTE | MLB_TMR_TMCSR_TRG;
+	writel_relaxed(val, timer_of_base(to) + MLB_TMR_SRC_TMCSR_OFS);
 	return 0;
 }
 
@@ -123,6 +150,7 @@
 		.features = CLOCK_EVT_FEAT_DYNIRQ | CLOCK_EVT_FEAT_ONESHOT,
 		.set_state_oneshot = mlb_set_state_oneshot,
 		.set_state_periodic = mlb_set_state_periodic,
+		.set_state_shutdown = mlb_set_state_shutdown,
 		.set_next_event = mlb_clkevt_next_event,
 	},
 
diff --git a/drivers/clocksource/timer-sun4i.c b/drivers/clocksource/timer-sun4i.c
index 6e0180a..65f38f6 100644
--- a/drivers/clocksource/timer-sun4i.c
+++ b/drivers/clocksource/timer-sun4i.c
@@ -186,7 +186,8 @@
 	 */
 	if (of_machine_is_compatible("allwinner,sun4i-a10") ||
 	    of_machine_is_compatible("allwinner,sun5i-a13") ||
-	    of_machine_is_compatible("allwinner,sun5i-a10s"))
+	    of_machine_is_compatible("allwinner,sun5i-a10s") ||
+	    of_machine_is_compatible("allwinner,suniv-f1c100s"))
 		sched_clock_register(sun4i_timer_sched_read, 32,
 				     timer_of_rate(&to));
 
@@ -218,3 +219,5 @@
 }
 TIMER_OF_DECLARE(sun4i, "allwinner,sun4i-a10-timer",
 		       sun4i_timer_init);
+TIMER_OF_DECLARE(suniv, "allwinner,suniv-f1c100s-timer",
+		       sun4i_timer_init);
diff --git a/drivers/clocksource/timer-tegra20.c b/drivers/clocksource/timer-tegra20.c
index fdb3d79..919b356 100644
--- a/drivers/clocksource/timer-tegra20.c
+++ b/drivers/clocksource/timer-tegra20.c
@@ -60,9 +60,6 @@
 static u32 usec_config;
 static void __iomem *timer_reg_base;
 #ifdef CONFIG_ARM
-static void __iomem *rtc_base;
-static struct timespec64 persistent_ts;
-static u64 persistent_ms, last_persistent_ms;
 static struct delay_timer tegra_delay_timer;
 #endif
 
@@ -199,40 +196,30 @@
 	return readl(timer_reg_base + TIMERUS_CNTR_1US);
 }
 
+static struct timer_of suspend_rtc_to = {
+	.flags = TIMER_OF_BASE | TIMER_OF_CLOCK,
+};
+
 /*
  * tegra_rtc_read - Reads the Tegra RTC registers
  * Care must be taken that this funciton is not called while the
  * tegra_rtc driver could be executing to avoid race conditions
  * on the RTC shadow register
  */
-static u64 tegra_rtc_read_ms(void)
+static u64 tegra_rtc_read_ms(struct clocksource *cs)
 {
-	u32 ms = readl(rtc_base + RTC_MILLISECONDS);
-	u32 s = readl(rtc_base + RTC_SHADOW_SECONDS);
+	u32 ms = readl(timer_of_base(&suspend_rtc_to) + RTC_MILLISECONDS);
+	u32 s = readl(timer_of_base(&suspend_rtc_to) + RTC_SHADOW_SECONDS);
 	return (u64)s * MSEC_PER_SEC + ms;
 }
 
-/*
- * tegra_read_persistent_clock64 -  Return time from a persistent clock.
- *
- * Reads the time from a source which isn't disabled during PM, the
- * 32k sync timer.  Convert the cycles elapsed since last read into
- * nsecs and adds to a monotonically increasing timespec64.
- * Care must be taken that this funciton is not called while the
- * tegra_rtc driver could be executing to avoid race conditions
- * on the RTC shadow register
- */
-static void tegra_read_persistent_clock64(struct timespec64 *ts)
-{
-	u64 delta;
-
-	last_persistent_ms = persistent_ms;
-	persistent_ms = tegra_rtc_read_ms();
-	delta = persistent_ms - last_persistent_ms;
-
-	timespec64_add_ns(&persistent_ts, delta * NSEC_PER_MSEC);
-	*ts = persistent_ts;
-}
+static struct clocksource suspend_rtc_clocksource = {
+	.name	= "tegra_suspend_timer",
+	.rating	= 200,
+	.read	= tegra_rtc_read_ms,
+	.mask	= CLOCKSOURCE_MASK(32),
+	.flags	= CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_SUSPEND_NONSTOP,
+};
 #endif
 
 static int tegra_timer_common_init(struct device_node *np, struct timer_of *to)
@@ -385,25 +372,15 @@
 
 static int __init tegra20_init_rtc(struct device_node *np)
 {
-	struct clk *clk;
+	int ret;
 
-	rtc_base = of_iomap(np, 0);
-	if (!rtc_base) {
-		pr_err("Can't map RTC registers\n");
-		return -ENXIO;
-	}
+	ret = timer_of_init(np, &suspend_rtc_to);
+	if (ret)
+		return ret;
 
-	/*
-	 * rtc registers are used by read_persistent_clock, keep the rtc clock
-	 * enabled
-	 */
-	clk = of_clk_get(np, 0);
-	if (IS_ERR(clk))
-		pr_warn("Unable to get rtc-tegra clock\n");
-	else
-		clk_prepare_enable(clk);
+	clocksource_register_hz(&suspend_rtc_clocksource, 1000);
 
-	return register_persistent_clock(tegra_read_persistent_clock64);
+	return 0;
 }
 TIMER_OF_DECLARE(tegra20_rtc, "nvidia,tegra20-rtc", tegra20_init_rtc);
 #endif
diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index 3fbbb61..ef93406 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -65,18 +65,36 @@
 };
 
 /**
+ * struct ti_sci_rm_type_map - Structure representing TISCI Resource
+ *				management representation of dev_ids.
+ * @dev_id:	TISCI device ID
+ * @type:	Corresponding id as identified by TISCI RM.
+ *
+ * Note: This is used only as a work around for using RM range apis
+ *	for AM654 SoC. For future SoCs dev_id will be used as type
+ *	for RM range APIs. In order to maintain ABI backward compatibility
+ *	type is not being changed for AM654 SoC.
+ */
+struct ti_sci_rm_type_map {
+	u32 dev_id;
+	u16 type;
+};
+
+/**
  * struct ti_sci_desc - Description of SoC integration
  * @default_host_id:	Host identifier representing the compute entity
  * @max_rx_timeout_ms:	Timeout for communication with SoC (in Milliseconds)
  * @max_msgs: Maximum number of messages that can be pending
  *		  simultaneously in the system
  * @max_msg_size: Maximum size of data per message that can be handled.
+ * @rm_type_map: RM resource type mapping structure.
  */
 struct ti_sci_desc {
 	u8 default_host_id;
 	int max_rx_timeout_ms;
 	int max_msgs;
 	int max_msg_size;
+	struct ti_sci_rm_type_map *rm_type_map;
 };
 
 /**
@@ -1600,6 +1618,392 @@
 	return ret;
 }
 
+static int ti_sci_get_resource_type(struct ti_sci_info *info, u16 dev_id,
+				    u16 *type)
+{
+	struct ti_sci_rm_type_map *rm_type_map = info->desc->rm_type_map;
+	bool found = false;
+	int i;
+
+	/* If map is not provided then assume dev_id is used as type */
+	if (!rm_type_map) {
+		*type = dev_id;
+		return 0;
+	}
+
+	for (i = 0; rm_type_map[i].dev_id; i++) {
+		if (rm_type_map[i].dev_id == dev_id) {
+			*type = rm_type_map[i].type;
+			found = true;
+			break;
+		}
+	}
+
+	if (!found)
+		return -EINVAL;
+
+	return 0;
+}
+
+/**
+ * ti_sci_get_resource_range - Helper to get a range of resources assigned
+ *			       to a host. Resource is uniquely identified by
+ *			       type and subtype.
+ * @handle:		Pointer to TISCI handle.
+ * @dev_id:		TISCI device ID.
+ * @subtype:		Resource assignment subtype that is being requested
+ *			from the given device.
+ * @s_host:		Host processor ID to which the resources are allocated
+ * @range_start:	Start index of the resource range
+ * @range_num:		Number of resources in the range
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static int ti_sci_get_resource_range(const struct ti_sci_handle *handle,
+				     u32 dev_id, u8 subtype, u8 s_host,
+				     u16 *range_start, u16 *range_num)
+{
+	struct ti_sci_msg_resp_get_resource_range *resp;
+	struct ti_sci_msg_req_get_resource_range *req;
+	struct ti_sci_xfer *xfer;
+	struct ti_sci_info *info;
+	struct device *dev;
+	u16 type;
+	int ret = 0;
+
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+	if (!handle)
+		return -EINVAL;
+
+	info = handle_to_ti_sci_info(handle);
+	dev = info->dev;
+
+	xfer = ti_sci_get_one_xfer(info, TI_SCI_MSG_GET_RESOURCE_RANGE,
+				   TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
+				   sizeof(*req), sizeof(*resp));
+	if (IS_ERR(xfer)) {
+		ret = PTR_ERR(xfer);
+		dev_err(dev, "Message alloc failed(%d)\n", ret);
+		return ret;
+	}
+
+	ret = ti_sci_get_resource_type(info, dev_id, &type);
+	if (ret) {
+		dev_err(dev, "rm type lookup failed for %u\n", dev_id);
+		goto fail;
+	}
+
+	req = (struct ti_sci_msg_req_get_resource_range *)xfer->xfer_buf;
+	req->secondary_host = s_host;
+	req->type = type & MSG_RM_RESOURCE_TYPE_MASK;
+	req->subtype = subtype & MSG_RM_RESOURCE_SUBTYPE_MASK;
+
+	ret = ti_sci_do_xfer(info, xfer);
+	if (ret) {
+		dev_err(dev, "Mbox send fail %d\n", ret);
+		goto fail;
+	}
+
+	resp = (struct ti_sci_msg_resp_get_resource_range *)xfer->xfer_buf;
+
+	if (!ti_sci_is_response_ack(resp)) {
+		ret = -ENODEV;
+	} else if (!resp->range_start && !resp->range_num) {
+		ret = -ENODEV;
+	} else {
+		*range_start = resp->range_start;
+		*range_num = resp->range_num;
+	};
+
+fail:
+	ti_sci_put_one_xfer(&info->minfo, xfer);
+
+	return ret;
+}
+
+/**
+ * ti_sci_cmd_get_resource_range - Get a range of resources assigned to host
+ *				   that is same as ti sci interface host.
+ * @handle:		Pointer to TISCI handle.
+ * @dev_id:		TISCI device ID.
+ * @subtype:		Resource assignment subtype that is being requested
+ *			from the given device.
+ * @range_start:	Start index of the resource range
+ * @range_num:		Number of resources in the range
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static int ti_sci_cmd_get_resource_range(const struct ti_sci_handle *handle,
+					 u32 dev_id, u8 subtype,
+					 u16 *range_start, u16 *range_num)
+{
+	return ti_sci_get_resource_range(handle, dev_id, subtype,
+					 TI_SCI_IRQ_SECONDARY_HOST_INVALID,
+					 range_start, range_num);
+}
+
+/**
+ * ti_sci_cmd_get_resource_range_from_shost - Get a range of resources
+ *					      assigned to a specified host.
+ * @handle:		Pointer to TISCI handle.
+ * @dev_id:		TISCI device ID.
+ * @subtype:		Resource assignment subtype that is being requested
+ *			from the given device.
+ * @s_host:		Host processor ID to which the resources are allocated
+ * @range_start:	Start index of the resource range
+ * @range_num:		Number of resources in the range
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static
+int ti_sci_cmd_get_resource_range_from_shost(const struct ti_sci_handle *handle,
+					     u32 dev_id, u8 subtype, u8 s_host,
+					     u16 *range_start, u16 *range_num)
+{
+	return ti_sci_get_resource_range(handle, dev_id, subtype, s_host,
+					 range_start, range_num);
+}
+
+/**
+ * ti_sci_manage_irq() - Helper api to configure/release the irq route between
+ *			 the requested source and destination
+ * @handle:		Pointer to TISCI handle.
+ * @valid_params:	Bit fields defining the validity of certain params
+ * @src_id:		Device ID of the IRQ source
+ * @src_index:		IRQ source index within the source device
+ * @dst_id:		Device ID of the IRQ destination
+ * @dst_host_irq:	IRQ number of the destination device
+ * @ia_id:		Device ID of the IA, if the IRQ flows through this IA
+ * @vint:		Virtual interrupt to be used within the IA
+ * @global_event:	Global event number to be used for the requesting event
+ * @vint_status_bit:	Virtual interrupt status bit to be used for the event
+ * @s_host:		Secondary host ID to which the irq/event is being
+ *			requested for.
+ * @type:		Request type irq set or release.
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static int ti_sci_manage_irq(const struct ti_sci_handle *handle,
+			     u32 valid_params, u16 src_id, u16 src_index,
+			     u16 dst_id, u16 dst_host_irq, u16 ia_id, u16 vint,
+			     u16 global_event, u8 vint_status_bit, u8 s_host,
+			     u16 type)
+{
+	struct ti_sci_msg_req_manage_irq *req;
+	struct ti_sci_msg_hdr *resp;
+	struct ti_sci_xfer *xfer;
+	struct ti_sci_info *info;
+	struct device *dev;
+	int ret = 0;
+
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+	if (!handle)
+		return -EINVAL;
+
+	info = handle_to_ti_sci_info(handle);
+	dev = info->dev;
+
+	xfer = ti_sci_get_one_xfer(info, type, TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
+				   sizeof(*req), sizeof(*resp));
+	if (IS_ERR(xfer)) {
+		ret = PTR_ERR(xfer);
+		dev_err(dev, "Message alloc failed(%d)\n", ret);
+		return ret;
+	}
+	req = (struct ti_sci_msg_req_manage_irq *)xfer->xfer_buf;
+	req->valid_params = valid_params;
+	req->src_id = src_id;
+	req->src_index = src_index;
+	req->dst_id = dst_id;
+	req->dst_host_irq = dst_host_irq;
+	req->ia_id = ia_id;
+	req->vint = vint;
+	req->global_event = global_event;
+	req->vint_status_bit = vint_status_bit;
+	req->secondary_host = s_host;
+
+	ret = ti_sci_do_xfer(info, xfer);
+	if (ret) {
+		dev_err(dev, "Mbox send fail %d\n", ret);
+		goto fail;
+	}
+
+	resp = (struct ti_sci_msg_hdr *)xfer->xfer_buf;
+
+	ret = ti_sci_is_response_ack(resp) ? 0 : -ENODEV;
+
+fail:
+	ti_sci_put_one_xfer(&info->minfo, xfer);
+
+	return ret;
+}
+
+/**
+ * ti_sci_set_irq() - Helper api to configure the irq route between the
+ *		      requested source and destination
+ * @handle:		Pointer to TISCI handle.
+ * @valid_params:	Bit fields defining the validity of certain params
+ * @src_id:		Device ID of the IRQ source
+ * @src_index:		IRQ source index within the source device
+ * @dst_id:		Device ID of the IRQ destination
+ * @dst_host_irq:	IRQ number of the destination device
+ * @ia_id:		Device ID of the IA, if the IRQ flows through this IA
+ * @vint:		Virtual interrupt to be used within the IA
+ * @global_event:	Global event number to be used for the requesting event
+ * @vint_status_bit:	Virtual interrupt status bit to be used for the event
+ * @s_host:		Secondary host ID to which the irq/event is being
+ *			requested for.
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static int ti_sci_set_irq(const struct ti_sci_handle *handle, u32 valid_params,
+			  u16 src_id, u16 src_index, u16 dst_id,
+			  u16 dst_host_irq, u16 ia_id, u16 vint,
+			  u16 global_event, u8 vint_status_bit, u8 s_host)
+{
+	pr_debug("%s: IRQ set with valid_params = 0x%x from src = %d, index = %d, to dst = %d, irq = %d,via ia_id = %d, vint = %d, global event = %d,status_bit = %d\n",
+		 __func__, valid_params, src_id, src_index,
+		 dst_id, dst_host_irq, ia_id, vint, global_event,
+		 vint_status_bit);
+
+	return ti_sci_manage_irq(handle, valid_params, src_id, src_index,
+				 dst_id, dst_host_irq, ia_id, vint,
+				 global_event, vint_status_bit, s_host,
+				 TI_SCI_MSG_SET_IRQ);
+}
+
+/**
+ * ti_sci_free_irq() - Helper api to free the irq route between the
+ *			   requested source and destination
+ * @handle:		Pointer to TISCI handle.
+ * @valid_params:	Bit fields defining the validity of certain params
+ * @src_id:		Device ID of the IRQ source
+ * @src_index:		IRQ source index within the source device
+ * @dst_id:		Device ID of the IRQ destination
+ * @dst_host_irq:	IRQ number of the destination device
+ * @ia_id:		Device ID of the IA, if the IRQ flows through this IA
+ * @vint:		Virtual interrupt to be used within the IA
+ * @global_event:	Global event number to be used for the requesting event
+ * @vint_status_bit:	Virtual interrupt status bit to be used for the event
+ * @s_host:		Secondary host ID to which the irq/event is being
+ *			requested for.
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static int ti_sci_free_irq(const struct ti_sci_handle *handle, u32 valid_params,
+			   u16 src_id, u16 src_index, u16 dst_id,
+			   u16 dst_host_irq, u16 ia_id, u16 vint,
+			   u16 global_event, u8 vint_status_bit, u8 s_host)
+{
+	pr_debug("%s: IRQ release with valid_params = 0x%x from src = %d, index = %d, to dst = %d, irq = %d,via ia_id = %d, vint = %d, global event = %d,status_bit = %d\n",
+		 __func__, valid_params, src_id, src_index,
+		 dst_id, dst_host_irq, ia_id, vint, global_event,
+		 vint_status_bit);
+
+	return ti_sci_manage_irq(handle, valid_params, src_id, src_index,
+				 dst_id, dst_host_irq, ia_id, vint,
+				 global_event, vint_status_bit, s_host,
+				 TI_SCI_MSG_FREE_IRQ);
+}
+
+/**
+ * ti_sci_cmd_set_irq() - Configure a host irq route between the requested
+ *			  source and destination.
+ * @handle:		Pointer to TISCI handle.
+ * @src_id:		Device ID of the IRQ source
+ * @src_index:		IRQ source index within the source device
+ * @dst_id:		Device ID of the IRQ destination
+ * @dst_host_irq:	IRQ number of the destination device
+ * @vint_irq:		Boolean specifying if this interrupt belongs to
+ *			Interrupt Aggregator.
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static int ti_sci_cmd_set_irq(const struct ti_sci_handle *handle, u16 src_id,
+			      u16 src_index, u16 dst_id, u16 dst_host_irq)
+{
+	u32 valid_params = MSG_FLAG_DST_ID_VALID | MSG_FLAG_DST_HOST_IRQ_VALID;
+
+	return ti_sci_set_irq(handle, valid_params, src_id, src_index, dst_id,
+			      dst_host_irq, 0, 0, 0, 0, 0);
+}
+
+/**
+ * ti_sci_cmd_set_event_map() - Configure an event based irq route between the
+ *				requested source and Interrupt Aggregator.
+ * @handle:		Pointer to TISCI handle.
+ * @src_id:		Device ID of the IRQ source
+ * @src_index:		IRQ source index within the source device
+ * @ia_id:		Device ID of the IA, if the IRQ flows through this IA
+ * @vint:		Virtual interrupt to be used within the IA
+ * @global_event:	Global event number to be used for the requesting event
+ * @vint_status_bit:	Virtual interrupt status bit to be used for the event
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static int ti_sci_cmd_set_event_map(const struct ti_sci_handle *handle,
+				    u16 src_id, u16 src_index, u16 ia_id,
+				    u16 vint, u16 global_event,
+				    u8 vint_status_bit)
+{
+	u32 valid_params = MSG_FLAG_IA_ID_VALID | MSG_FLAG_VINT_VALID |
+			   MSG_FLAG_GLB_EVNT_VALID |
+			   MSG_FLAG_VINT_STS_BIT_VALID;
+
+	return ti_sci_set_irq(handle, valid_params, src_id, src_index, 0, 0,
+			      ia_id, vint, global_event, vint_status_bit, 0);
+}
+
+/**
+ * ti_sci_cmd_free_irq() - Free a host irq route between the between the
+ *			   requested source and destination.
+ * @handle:		Pointer to TISCI handle.
+ * @src_id:		Device ID of the IRQ source
+ * @src_index:		IRQ source index within the source device
+ * @dst_id:		Device ID of the IRQ destination
+ * @dst_host_irq:	IRQ number of the destination device
+ * @vint_irq:		Boolean specifying if this interrupt belongs to
+ *			Interrupt Aggregator.
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static int ti_sci_cmd_free_irq(const struct ti_sci_handle *handle, u16 src_id,
+			       u16 src_index, u16 dst_id, u16 dst_host_irq)
+{
+	u32 valid_params = MSG_FLAG_DST_ID_VALID | MSG_FLAG_DST_HOST_IRQ_VALID;
+
+	return ti_sci_free_irq(handle, valid_params, src_id, src_index, dst_id,
+			       dst_host_irq, 0, 0, 0, 0, 0);
+}
+
+/**
+ * ti_sci_cmd_free_event_map() - Free an event map between the requested source
+ *				 and Interrupt Aggregator.
+ * @handle:		Pointer to TISCI handle.
+ * @src_id:		Device ID of the IRQ source
+ * @src_index:		IRQ source index within the source device
+ * @ia_id:		Device ID of the IA, if the IRQ flows through this IA
+ * @vint:		Virtual interrupt to be used within the IA
+ * @global_event:	Global event number to be used for the requesting event
+ * @vint_status_bit:	Virtual interrupt status bit to be used for the event
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+static int ti_sci_cmd_free_event_map(const struct ti_sci_handle *handle,
+				     u16 src_id, u16 src_index, u16 ia_id,
+				     u16 vint, u16 global_event,
+				     u8 vint_status_bit)
+{
+	u32 valid_params = MSG_FLAG_IA_ID_VALID |
+			   MSG_FLAG_VINT_VALID | MSG_FLAG_GLB_EVNT_VALID |
+			   MSG_FLAG_VINT_STS_BIT_VALID;
+
+	return ti_sci_free_irq(handle, valid_params, src_id, src_index, 0, 0,
+			       ia_id, vint, global_event, vint_status_bit, 0);
+}
+
 /*
  * ti_sci_setup_ops() - Setup the operations structures
  * @info:	pointer to TISCI pointer
@@ -1610,6 +2014,8 @@
 	struct ti_sci_core_ops *core_ops = &ops->core_ops;
 	struct ti_sci_dev_ops *dops = &ops->dev_ops;
 	struct ti_sci_clk_ops *cops = &ops->clk_ops;
+	struct ti_sci_rm_core_ops *rm_core_ops = &ops->rm_core_ops;
+	struct ti_sci_rm_irq_ops *iops = &ops->rm_irq_ops;
 
 	core_ops->reboot_device = ti_sci_cmd_core_reboot;
 
@@ -1640,6 +2046,15 @@
 	cops->get_best_match_freq = ti_sci_cmd_clk_get_match_freq;
 	cops->set_freq = ti_sci_cmd_clk_set_freq;
 	cops->get_freq = ti_sci_cmd_clk_get_freq;
+
+	rm_core_ops->get_range = ti_sci_cmd_get_resource_range;
+	rm_core_ops->get_range_from_shost =
+				ti_sci_cmd_get_resource_range_from_shost;
+
+	iops->set_irq = ti_sci_cmd_set_irq;
+	iops->set_event_map = ti_sci_cmd_set_event_map;
+	iops->free_irq = ti_sci_cmd_free_irq;
+	iops->free_event_map = ti_sci_cmd_free_event_map;
 }
 
 /**
@@ -1764,6 +2179,219 @@
 }
 EXPORT_SYMBOL_GPL(devm_ti_sci_get_handle);
 
+/**
+ * ti_sci_get_by_phandle() - Get the TI SCI handle using DT phandle
+ * @np:		device node
+ * @property:	property name containing phandle on TISCI node
+ *
+ * NOTE: The function does not track individual clients of the framework
+ * and is expected to be maintained by caller of TI SCI protocol library.
+ * ti_sci_put_handle must be balanced with successful ti_sci_get_by_phandle
+ * Return: pointer to handle if successful, else:
+ * -EPROBE_DEFER if the instance is not ready
+ * -ENODEV if the required node handler is missing
+ * -EINVAL if invalid conditions are encountered.
+ */
+const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np,
+						  const char *property)
+{
+	struct ti_sci_handle *handle = NULL;
+	struct device_node *ti_sci_np;
+	struct ti_sci_info *info;
+	struct list_head *p;
+
+	if (!np) {
+		pr_err("I need a device pointer\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	ti_sci_np = of_parse_phandle(np, property, 0);
+	if (!ti_sci_np)
+		return ERR_PTR(-ENODEV);
+
+	mutex_lock(&ti_sci_list_mutex);
+	list_for_each(p, &ti_sci_list) {
+		info = list_entry(p, struct ti_sci_info, node);
+		if (ti_sci_np == info->dev->of_node) {
+			handle = &info->handle;
+			info->users++;
+			break;
+		}
+	}
+	mutex_unlock(&ti_sci_list_mutex);
+	of_node_put(ti_sci_np);
+
+	if (!handle)
+		return ERR_PTR(-EPROBE_DEFER);
+
+	return handle;
+}
+EXPORT_SYMBOL_GPL(ti_sci_get_by_phandle);
+
+/**
+ * devm_ti_sci_get_by_phandle() - Managed get handle using phandle
+ * @dev:	Device pointer requesting TISCI handle
+ * @property:	property name containing phandle on TISCI node
+ *
+ * NOTE: This releases the handle once the device resources are
+ * no longer needed. MUST NOT BE released with ti_sci_put_handle.
+ * The function does not track individual clients of the framework
+ * and is expected to be maintained by caller of TI SCI protocol library.
+ *
+ * Return: 0 if all went fine, else corresponding error.
+ */
+const struct ti_sci_handle *devm_ti_sci_get_by_phandle(struct device *dev,
+						       const char *property)
+{
+	const struct ti_sci_handle *handle;
+	const struct ti_sci_handle **ptr;
+
+	ptr = devres_alloc(devm_ti_sci_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+	handle = ti_sci_get_by_phandle(dev_of_node(dev), property);
+
+	if (!IS_ERR(handle)) {
+		*ptr = handle;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return handle;
+}
+EXPORT_SYMBOL_GPL(devm_ti_sci_get_by_phandle);
+
+/**
+ * ti_sci_get_free_resource() - Get a free resource from TISCI resource.
+ * @res:	Pointer to the TISCI resource
+ *
+ * Return: resource num if all went ok else TI_SCI_RESOURCE_NULL.
+ */
+u16 ti_sci_get_free_resource(struct ti_sci_resource *res)
+{
+	unsigned long flags;
+	u16 set, free_bit;
+
+	raw_spin_lock_irqsave(&res->lock, flags);
+	for (set = 0; set < res->sets; set++) {
+		free_bit = find_first_zero_bit(res->desc[set].res_map,
+					       res->desc[set].num);
+		if (free_bit != res->desc[set].num) {
+			set_bit(free_bit, res->desc[set].res_map);
+			raw_spin_unlock_irqrestore(&res->lock, flags);
+			return res->desc[set].start + free_bit;
+		}
+	}
+	raw_spin_unlock_irqrestore(&res->lock, flags);
+
+	return TI_SCI_RESOURCE_NULL;
+}
+EXPORT_SYMBOL_GPL(ti_sci_get_free_resource);
+
+/**
+ * ti_sci_release_resource() - Release a resource from TISCI resource.
+ * @res:	Pointer to the TISCI resource
+ * @id:		Resource id to be released.
+ */
+void ti_sci_release_resource(struct ti_sci_resource *res, u16 id)
+{
+	unsigned long flags;
+	u16 set;
+
+	raw_spin_lock_irqsave(&res->lock, flags);
+	for (set = 0; set < res->sets; set++) {
+		if (res->desc[set].start <= id &&
+		    (res->desc[set].num + res->desc[set].start) > id)
+			clear_bit(id - res->desc[set].start,
+				  res->desc[set].res_map);
+	}
+	raw_spin_unlock_irqrestore(&res->lock, flags);
+}
+EXPORT_SYMBOL_GPL(ti_sci_release_resource);
+
+/**
+ * ti_sci_get_num_resources() - Get the number of resources in TISCI resource
+ * @res:	Pointer to the TISCI resource
+ *
+ * Return: Total number of available resources.
+ */
+u32 ti_sci_get_num_resources(struct ti_sci_resource *res)
+{
+	u32 set, count = 0;
+
+	for (set = 0; set < res->sets; set++)
+		count += res->desc[set].num;
+
+	return count;
+}
+EXPORT_SYMBOL_GPL(ti_sci_get_num_resources);
+
+/**
+ * devm_ti_sci_get_of_resource() - Get a TISCI resource assigned to a device
+ * @handle:	TISCI handle
+ * @dev:	Device pointer to which the resource is assigned
+ * @dev_id:	TISCI device id to which the resource is assigned
+ * @of_prop:	property name by which the resource are represented
+ *
+ * Return: Pointer to ti_sci_resource if all went well else appropriate
+ *	   error pointer.
+ */
+struct ti_sci_resource *
+devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
+			    struct device *dev, u32 dev_id, char *of_prop)
+{
+	struct ti_sci_resource *res;
+	u32 resource_subtype;
+	int i, ret;
+
+	res = devm_kzalloc(dev, sizeof(*res), GFP_KERNEL);
+	if (!res)
+		return ERR_PTR(-ENOMEM);
+
+	res->sets = of_property_count_elems_of_size(dev_of_node(dev), of_prop,
+						    sizeof(u32));
+	if (res->sets < 0) {
+		dev_err(dev, "%s resource type ids not available\n", of_prop);
+		return ERR_PTR(res->sets);
+	}
+
+	res->desc = devm_kcalloc(dev, res->sets, sizeof(*res->desc),
+				 GFP_KERNEL);
+	if (!res->desc)
+		return ERR_PTR(-ENOMEM);
+
+	for (i = 0; i < res->sets; i++) {
+		ret = of_property_read_u32_index(dev_of_node(dev), of_prop, i,
+						 &resource_subtype);
+		if (ret)
+			return ERR_PTR(-EINVAL);
+
+		ret = handle->ops.rm_core_ops.get_range(handle, dev_id,
+							resource_subtype,
+							&res->desc[i].start,
+							&res->desc[i].num);
+		if (ret) {
+			dev_err(dev, "dev = %d subtype %d not allocated for this host\n",
+				dev_id, resource_subtype);
+			return ERR_PTR(ret);
+		}
+
+		dev_dbg(dev, "dev = %d, subtype = %d, start = %d, num = %d\n",
+			dev_id, resource_subtype, res->desc[i].start,
+			res->desc[i].num);
+
+		res->desc[i].res_map =
+			devm_kzalloc(dev, BITS_TO_LONGS(res->desc[i].num) *
+				     sizeof(*res->desc[i].res_map), GFP_KERNEL);
+		if (!res->desc[i].res_map)
+			return ERR_PTR(-ENOMEM);
+	}
+	raw_spin_lock_init(&res->lock);
+
+	return res;
+}
+
 static int tisci_reboot_handler(struct notifier_block *nb, unsigned long mode,
 				void *cmd)
 {
@@ -1784,10 +2412,33 @@
 	/* Limited by MBOX_TX_QUEUE_LEN. K2G can handle upto 128 messages! */
 	.max_msgs = 20,
 	.max_msg_size = 64,
+	.rm_type_map = NULL,
+};
+
+static struct ti_sci_rm_type_map ti_sci_am654_rm_type_map[] = {
+	{.dev_id = 56, .type = 0x00b}, /* GIC_IRQ */
+	{.dev_id = 179, .type = 0x000}, /* MAIN_NAV_UDMASS_IA0 */
+	{.dev_id = 187, .type = 0x009}, /* MAIN_NAV_RA */
+	{.dev_id = 188, .type = 0x006}, /* MAIN_NAV_UDMAP */
+	{.dev_id = 194, .type = 0x007}, /* MCU_NAV_UDMAP */
+	{.dev_id = 195, .type = 0x00a}, /* MCU_NAV_RA */
+	{.dev_id = 0, .type = 0x000}, /* end of table */
+};
+
+/* Description for AM654 */
+static const struct ti_sci_desc ti_sci_pmmc_am654_desc = {
+	.default_host_id = 12,
+	/* Conservative duration */
+	.max_rx_timeout_ms = 10000,
+	/* Limited by MBOX_TX_QUEUE_LEN. K2G can handle upto 128 messages! */
+	.max_msgs = 20,
+	.max_msg_size = 60,
+	.rm_type_map = ti_sci_am654_rm_type_map,
 };
 
 static const struct of_device_id ti_sci_of_match[] = {
 	{.compatible = "ti,k2g-sci", .data = &ti_sci_pmmc_k2g_desc},
+	{.compatible = "ti,am654-sci", .data = &ti_sci_pmmc_am654_desc},
 	{ /* Sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, ti_sci_of_match);
diff --git a/drivers/firmware/ti_sci.h b/drivers/firmware/ti_sci.h
index 12bf316..4983827 100644
--- a/drivers/firmware/ti_sci.h
+++ b/drivers/firmware/ti_sci.h
@@ -35,6 +35,13 @@
 #define TI_SCI_MSG_QUERY_CLOCK_FREQ	0x010d
 #define TI_SCI_MSG_GET_CLOCK_FREQ	0x010e
 
+/* Resource Management Requests */
+#define TI_SCI_MSG_GET_RESOURCE_RANGE	0x1500
+
+/* IRQ requests */
+#define TI_SCI_MSG_SET_IRQ		0x1000
+#define TI_SCI_MSG_FREE_IRQ		0x1001
+
 /**
  * struct ti_sci_msg_hdr - Generic Message Header for All messages and responses
  * @type:	Type of messages: One of TI_SCI_MSG* values
@@ -461,4 +468,99 @@
 	u64 freq_hz;
 } __packed;
 
+#define TI_SCI_IRQ_SECONDARY_HOST_INVALID	0xff
+
+/**
+ * struct ti_sci_msg_req_get_resource_range - Request to get a host's assigned
+ *					      range of resources.
+ * @hdr:		Generic Header
+ * @type:		Unique resource assignment type
+ * @subtype:		Resource assignment subtype within the resource type.
+ * @secondary_host:	Host processing entity to which the resources are
+ *			allocated. This is required only when the destination
+ *			host id id different from ti sci interface host id,
+ *			else TI_SCI_IRQ_SECONDARY_HOST_INVALID can be passed.
+ *
+ * Request type is TI_SCI_MSG_GET_RESOURCE_RANGE. Responded with requested
+ * resource range which is of type TI_SCI_MSG_GET_RESOURCE_RANGE.
+ */
+struct ti_sci_msg_req_get_resource_range {
+	struct ti_sci_msg_hdr hdr;
+#define MSG_RM_RESOURCE_TYPE_MASK	GENMASK(9, 0)
+#define MSG_RM_RESOURCE_SUBTYPE_MASK	GENMASK(5, 0)
+	u16 type;
+	u8 subtype;
+	u8 secondary_host;
+} __packed;
+
+/**
+ * struct ti_sci_msg_resp_get_resource_range - Response to resource get range.
+ * @hdr:		Generic Header
+ * @range_start:	Start index of the resource range.
+ * @range_num:		Number of resources in the range.
+ *
+ * Response to request TI_SCI_MSG_GET_RESOURCE_RANGE.
+ */
+struct ti_sci_msg_resp_get_resource_range {
+	struct ti_sci_msg_hdr hdr;
+	u16 range_start;
+	u16 range_num;
+} __packed;
+
+/**
+ * struct ti_sci_msg_req_manage_irq - Request to configure/release the route
+ *					between the dev and the host.
+ * @hdr:		Generic Header
+ * @valid_params:	Bit fields defining the validity of interrupt source
+ *			parameters. If a bit is not set, then corresponding
+ *			field is not valid and will not be used for route set.
+ *			Bit field definitions:
+ *			0 - Valid bit for @dst_id
+ *			1 - Valid bit for @dst_host_irq
+ *			2 - Valid bit for @ia_id
+ *			3 - Valid bit for @vint
+ *			4 - Valid bit for @global_event
+ *			5 - Valid bit for @vint_status_bit_index
+ *			31 - Valid bit for @secondary_host
+ * @src_id:		IRQ source peripheral ID.
+ * @src_index:		IRQ source index within the peripheral
+ * @dst_id:		IRQ Destination ID. Based on the architecture it can be
+ *			IRQ controller or host processor ID.
+ * @dst_host_irq:	IRQ number of the destination host IRQ controller
+ * @ia_id:		Device ID of the interrupt aggregator in which the
+ *			vint resides.
+ * @vint:		Virtual interrupt number if the interrupt route
+ *			is through an interrupt aggregator.
+ * @global_event:	Global event that is to be mapped to interrupt
+ *			aggregator virtual interrupt status bit.
+ * @vint_status_bit:	Virtual interrupt status bit if the interrupt route
+ *			utilizes an interrupt aggregator status bit.
+ * @secondary_host:	Host ID of the IRQ destination computing entity. This is
+ *			required only when destination host id is different
+ *			from ti sci interface host id.
+ *
+ * Request type is TI_SCI_MSG_SET/RELEASE_IRQ.
+ * Response is generic ACK / NACK message.
+ */
+struct ti_sci_msg_req_manage_irq {
+	struct ti_sci_msg_hdr hdr;
+#define MSG_FLAG_DST_ID_VALID			TI_SCI_MSG_FLAG(0)
+#define MSG_FLAG_DST_HOST_IRQ_VALID		TI_SCI_MSG_FLAG(1)
+#define MSG_FLAG_IA_ID_VALID			TI_SCI_MSG_FLAG(2)
+#define MSG_FLAG_VINT_VALID			TI_SCI_MSG_FLAG(3)
+#define MSG_FLAG_GLB_EVNT_VALID			TI_SCI_MSG_FLAG(4)
+#define MSG_FLAG_VINT_STS_BIT_VALID		TI_SCI_MSG_FLAG(5)
+#define MSG_FLAG_SHOST_VALID			TI_SCI_MSG_FLAG(31)
+	u32 valid_params;
+	u16 src_id;
+	u16 src_index;
+	u16 dst_id;
+	u16 dst_host_irq;
+	u16 ia_id;
+	u16 vint;
+	u16 global_event;
+	u8 vint_status_bit;
+	u8 secondary_host;
+} __packed;
+
 #endif /* __TI_SCI_H */
diff --git a/drivers/gpio/gpio-thunderx.c b/drivers/gpio/gpio-thunderx.c
index 1306722..715371b 100644
--- a/drivers/gpio/gpio-thunderx.c
+++ b/drivers/gpio/gpio-thunderx.c
@@ -363,22 +363,16 @@
 {
 	struct thunderx_line *txline = irq_data_get_irq_chip_data(data);
 	struct thunderx_gpio *txgpio = txline->txgpio;
-	struct irq_data *parent_data = data->parent_data;
 	int r;
 
 	r = gpiochip_lock_as_irq(&txgpio->chip, txline->line);
 	if (r)
 		return r;
 
-	if (parent_data && parent_data->chip->irq_request_resources) {
-		r = parent_data->chip->irq_request_resources(parent_data);
-		if (r)
-			goto error;
-	}
+	r = irq_chip_request_resources_parent(data);
+	if (r)
+		gpiochip_unlock_as_irq(&txgpio->chip, txline->line);
 
-	return 0;
-error:
-	gpiochip_unlock_as_irq(&txgpio->chip, txline->line);
 	return r;
 }
 
@@ -386,10 +380,8 @@
 {
 	struct thunderx_line *txline = irq_data_get_irq_chip_data(data);
 	struct thunderx_gpio *txgpio = txline->txgpio;
-	struct irq_data *parent_data = data->parent_data;
 
-	if (parent_data && parent_data->chip->irq_release_resources)
-		parent_data->chip->irq_release_resources(parent_data);
+	irq_chip_release_resources_parent(data);
 
 	gpiochip_unlock_as_irq(&txgpio->chip, txline->line);
 }
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 9732a81..d389d4f 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -714,7 +714,7 @@
 }
 
 /**
- * i2c_new_device - instantiate an i2c device
+ * i2c_new_client_device - instantiate an i2c device
  * @adap: the adapter managing the device
  * @info: describes one I2C device; bus_num is ignored
  * Context: can sleep
@@ -727,17 +727,17 @@
  * before any i2c_adapter could exist.
  *
  * This returns the new i2c client, which may be saved for later use with
- * i2c_unregister_device(); or NULL to indicate an error.
+ * i2c_unregister_device(); or an ERR_PTR to describe the error.
  */
-struct i2c_client *
-i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
+static struct i2c_client *
+i2c_new_client_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
 {
 	struct i2c_client	*client;
 	int			status;
 
 	client = kzalloc(sizeof *client, GFP_KERNEL);
 	if (!client)
-		return NULL;
+		return ERR_PTR(-ENOMEM);
 
 	client->adapter = adap;
 
@@ -803,7 +803,31 @@
 		client->name, client->addr, status);
 out_err_silent:
 	kfree(client);
-	return NULL;
+	return ERR_PTR(status);
+}
+EXPORT_SYMBOL_GPL(i2c_new_client_device);
+
+/**
+ * i2c_new_device - instantiate an i2c device
+ * @adap: the adapter managing the device
+ * @info: describes one I2C device; bus_num is ignored
+ * Context: can sleep
+ *
+ * This deprecated function has the same functionality as
+ * @i2c_new_client_device, it just returns NULL instead of an ERR_PTR in case of
+ * an error for compatibility with current I2C API. It will be removed once all
+ * users are converted.
+ *
+ * This returns the new i2c client, which may be saved for later use with
+ * i2c_unregister_device(); or NULL to indicate an error.
+ */
+struct i2c_client *
+i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
+{
+	struct i2c_client *ret;
+
+	ret = i2c_new_client_device(adap, info);
+	return IS_ERR(ret) ? NULL : ret;
 }
 EXPORT_SYMBOL_GPL(i2c_new_device);
 
@@ -854,7 +878,7 @@
 };
 
 /**
- * i2c_new_dummy - return a new i2c device bound to a dummy driver
+ * i2c_new_dummy_device - return a new i2c device bound to a dummy driver
  * @adapter: the adapter managing the device
  * @address: seven bit address to be used
  * Context: can sleep
@@ -869,18 +893,86 @@
  * different driver.
  *
  * This returns the new i2c client, which should be saved for later use with
- * i2c_unregister_device(); or NULL to indicate an error.
+ * i2c_unregister_device(); or an ERR_PTR to describe the error.
  */
-struct i2c_client *i2c_new_dummy(struct i2c_adapter *adapter, u16 address)
+static struct i2c_client *
+i2c_new_dummy_device(struct i2c_adapter *adapter, u16 address)
 {
 	struct i2c_board_info info = {
 		I2C_BOARD_INFO("dummy", address),
 	};
 
-	return i2c_new_device(adapter, &info);
+	return i2c_new_client_device(adapter, &info);
+}
+EXPORT_SYMBOL_GPL(i2c_new_dummy_device);
+
+/**
+ * i2c_new_dummy - return a new i2c device bound to a dummy driver
+ * @adapter: the adapter managing the device
+ * @address: seven bit address to be used
+ * Context: can sleep
+ *
+ * This deprecated function has the same functionality as @i2c_new_dummy_device,
+ * it just returns NULL instead of an ERR_PTR in case of an error for
+ * compatibility with current I2C API. It will be removed once all users are
+ * converted.
+ *
+ * This returns the new i2c client, which should be saved for later use with
+ * i2c_unregister_device(); or NULL to indicate an error.
+ */
+struct i2c_client *i2c_new_dummy(struct i2c_adapter *adapter, u16 address)
+{
+	struct i2c_client *ret;
+
+	ret = i2c_new_dummy_device(adapter, address);
+	return IS_ERR(ret) ? NULL : ret;
 }
 EXPORT_SYMBOL_GPL(i2c_new_dummy);
 
+struct i2c_dummy_devres {
+	struct i2c_client *client;
+};
+
+static void devm_i2c_release_dummy(struct device *dev, void *res)
+{
+	struct i2c_dummy_devres *this = res;
+
+	i2c_unregister_device(this->client);
+}
+
+/**
+ * devm_i2c_new_dummy_device - return a new i2c device bound to a dummy driver
+ * @dev: device the managed resource is bound to
+ * @adapter: the adapter managing the device
+ * @address: seven bit address to be used
+ * Context: can sleep
+ *
+ * This is the device-managed version of @i2c_new_dummy_device. It returns the
+ * new i2c client or an ERR_PTR in case of an error.
+ */
+struct i2c_client *devm_i2c_new_dummy_device(struct device *dev,
+					     struct i2c_adapter *adapter,
+					     u16 address)
+{
+	struct i2c_dummy_devres *dr;
+	struct i2c_client *client;
+
+	dr = devres_alloc(devm_i2c_release_dummy, sizeof(*dr), GFP_KERNEL);
+	if (!dr)
+		return ERR_PTR(-ENOMEM);
+
+	client = i2c_new_dummy_device(adapter, address);
+	if (IS_ERR(client)) {
+		devres_free(dr);
+	} else {
+		dr->client = client;
+		devres_add(dev, dr);
+	}
+
+	return client;
+}
+EXPORT_SYMBOL_GPL(devm_i2c_new_dummy_device);
+
 /**
  * i2c_new_secondary_device - Helper to get the instantiated secondary address
  * and create the associated device
@@ -1000,9 +1092,9 @@
 		info.flags |= I2C_CLIENT_SLAVE;
 	}
 
-	client = i2c_new_device(adap, &info);
-	if (!client)
-		return -EINVAL;
+	client = i2c_new_client_device(adap, &info);
+	if (IS_ERR(client))
+		return PTR_ERR(client);
 
 	/* Keep track of the added device */
 	mutex_lock(&adap->userspace_clients_lock);
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 15b8311..e559e43 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -94,6 +94,7 @@
 	bool
 	select IOMMU_API
 	select IOMMU_IOVA
+	select IRQ_MSI_IOMMU
 	select NEED_SG_DMA_LENGTH
 
 config FSL_PAMU
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 5e89804..129c4ba 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -907,17 +907,18 @@
 	return NULL;
 }
 
-void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg)
+int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr)
 {
-	struct device *dev = msi_desc_to_dev(irq_get_msi_desc(irq));
+	struct device *dev = msi_desc_to_dev(desc);
 	struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
 	struct iommu_dma_cookie *cookie;
 	struct iommu_dma_msi_page *msi_page;
-	phys_addr_t msi_addr = (u64)msg->address_hi << 32 | msg->address_lo;
 	unsigned long flags;
 
-	if (!domain || !domain->iova_cookie)
-		return;
+	if (!domain || !domain->iova_cookie) {
+		desc->iommu_cookie = NULL;
+		return 0;
+	}
 
 	cookie = domain->iova_cookie;
 
@@ -930,19 +931,26 @@
 	msi_page = iommu_dma_get_msi_page(dev, msi_addr, domain);
 	spin_unlock_irqrestore(&cookie->msi_lock, flags);
 
-	if (WARN_ON(!msi_page)) {
-		/*
-		 * We're called from a void callback, so the best we can do is
-		 * 'fail' by filling the message with obviously bogus values.
-		 * Since we got this far due to an IOMMU being present, it's
-		 * not like the existing address would have worked anyway...
-		 */
-		msg->address_hi = ~0U;
-		msg->address_lo = ~0U;
-		msg->data = ~0U;
-	} else {
-		msg->address_hi = upper_32_bits(msi_page->iova);
-		msg->address_lo &= cookie_msi_granule(cookie) - 1;
-		msg->address_lo += lower_32_bits(msi_page->iova);
-	}
+	msi_desc_set_iommu_cookie(desc, msi_page);
+
+	if (!msi_page)
+		return -ENOMEM;
+	return 0;
+}
+
+void iommu_dma_compose_msi_msg(struct msi_desc *desc,
+			       struct msi_msg *msg)
+{
+	struct device *dev = msi_desc_to_dev(desc);
+	const struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
+	const struct iommu_dma_msi_page *msi_page;
+
+	msi_page = msi_desc_get_iommu_cookie(desc);
+
+	if (!domain || !domain->iova_cookie || WARN_ON(!msi_page))
+		return;
+
+	msg->address_hi = upper_32_bits(msi_page->iova);
+	msg->address_lo &= cookie_msi_granule(domain->iova_cookie) - 1;
+	msg->address_lo += lower_32_bits(msi_page->iova);
 }
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index cf79849..1c1f3f6 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -6,7 +6,6 @@
 
 config ARM_GIC
 	bool
-	select IRQ_DOMAIN
 	select IRQ_DOMAIN_HIERARCHY
 	select GENERIC_IRQ_MULTI_HANDLER
 	select GENERIC_IRQ_EFFECTIVE_AFF_MASK
@@ -33,7 +32,6 @@
 
 config ARM_GIC_V3
 	bool
-	select IRQ_DOMAIN
 	select GENERIC_IRQ_MULTI_HANDLER
 	select IRQ_DOMAIN_HIERARCHY
 	select PARTITION_PERCPU
@@ -59,7 +57,6 @@
 
 config ARM_NVIC
 	bool
-	select IRQ_DOMAIN
 	select IRQ_DOMAIN_HIERARCHY
 	select GENERIC_IRQ_CHIP
 
@@ -358,7 +355,6 @@
 config QCOM_IRQ_COMBINER
 	bool "QCOM IRQ combiner support"
 	depends on ARCH_QCOM && ACPI
-	select IRQ_DOMAIN
 	select IRQ_DOMAIN_HIERARCHY
 	help
 	  Say yes here to add support for the IRQ combiner devices embedded
@@ -375,7 +371,6 @@
 config MESON_IRQ_GPIO
        bool "Meson GPIO Interrupt Multiplexer"
        depends on ARCH_MESON
-       select IRQ_DOMAIN
        select IRQ_DOMAIN_HIERARCHY
        help
          Support Meson SoC Family GPIO Interrupt Multiplexer
@@ -391,7 +386,6 @@
 config QCOM_PDC
 	bool "QCOM PDC"
 	depends on ARCH_QCOM
-	select IRQ_DOMAIN
 	select IRQ_DOMAIN_HIERARCHY
 	help
 	  Power Domain Controller driver to manage and configure wakeup
@@ -431,6 +425,27 @@
 	help
 	  Support for the Loongson-1 platform Interrupt Controller.
 
+config TI_SCI_INTR_IRQCHIP
+	bool
+	depends on TI_SCI_PROTOCOL
+	select IRQ_DOMAIN_HIERARCHY
+	help
+	  This enables the irqchip driver support for K3 Interrupt router
+	  over TI System Control Interface available on some new TI's SoCs.
+	  If you wish to use interrupt router irq resources managed by the
+	  TI System Controller, say Y here. Otherwise, say N.
+
+config TI_SCI_INTA_IRQCHIP
+	bool
+	depends on TI_SCI_PROTOCOL
+	select IRQ_DOMAIN_HIERARCHY
+	select TI_SCI_INTA_MSI_DOMAIN
+	help
+	  This enables the irqchip driver support for K3 Interrupt aggregator
+	  over TI System Control Interface available on some new TI's SoCs.
+	  If you wish to use interrupt aggregator irq resources managed by the
+	  TI System Controller, say Y here. Otherwise, say N.
+
 endmenu
 
 config SIFIVE_PLIC
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index f8c66e9..606a003 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -98,3 +98,5 @@
 obj-$(CONFIG_IMX_IRQSTEER)		+= irq-imx-irqsteer.o
 obj-$(CONFIG_MADERA_IRQ)		+= irq-madera.o
 obj-$(CONFIG_LS1X_IRQ)			+= irq-ls1x.o
+obj-$(CONFIG_TI_SCI_INTR_IRQCHIP)	+= irq-ti-sci-intr.o
+obj-$(CONFIG_TI_SCI_INTA_IRQCHIP)	+= irq-ti-sci-inta.o
diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index 0f6e30e..0acebac 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -343,6 +343,9 @@
 		goto out_unmap;
 	}
 
+	pr_info("registered BCM7038 L1 intc (%pOF, IRQs: %d)\n",
+		dn, IRQS_PER_WORD * intc->n_words);
+
 	return 0;
 
 out_unmap:
diff --git a/drivers/irqchip/irq-bcm7120-l2.c b/drivers/irqchip/irq-bcm7120-l2.c
index 8968e5e..541bdca 100644
--- a/drivers/irqchip/irq-bcm7120-l2.c
+++ b/drivers/irqchip/irq-bcm7120-l2.c
@@ -318,6 +318,9 @@
 		}
 	}
 
+	pr_info("registered %s intc (%pOF, parent IRQ(s): %d)\n",
+		intc_name, dn, data->num_parent_irqs);
+
 	return 0;
 
 out_free_domain:
diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c
index 5e4ca13..a0642b5 100644
--- a/drivers/irqchip/irq-brcmstb-l2.c
+++ b/drivers/irqchip/irq-brcmstb-l2.c
@@ -264,6 +264,8 @@
 		ct->chip.irq_set_wake = irq_gc_set_wake;
 	}
 
+	pr_info("registered L2 intc (%pOF, parent irq: %d)\n", np, parent_irq);
+
 	return 0;
 
 out_free_domain:
diff --git a/drivers/irqchip/irq-gic-pm.c b/drivers/irqchip/irq-gic-pm.c
index ecafd29..c4aac09 100644
--- a/drivers/irqchip/irq-gic-pm.c
+++ b/drivers/irqchip/irq-gic-pm.c
@@ -19,7 +19,6 @@
 #include <linux/of_irq.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/platform_device.h>
-#include <linux/pm_clock.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 
@@ -28,17 +27,27 @@
 	const char *const *clocks;
 };
 
+struct gic_chip_pm {
+	struct gic_chip_data *chip_data;
+	const struct gic_clk_data *clk_data;
+	struct clk_bulk_data *clks;
+};
+
 static int gic_runtime_resume(struct device *dev)
 {
-	struct gic_chip_data *gic = dev_get_drvdata(dev);
+	struct gic_chip_pm *chip_pm = dev_get_drvdata(dev);
+	struct gic_chip_data *gic = chip_pm->chip_data;
+	const struct gic_clk_data *data = chip_pm->clk_data;
 	int ret;
 
-	ret = pm_clk_resume(dev);
-	if (ret)
+	ret = clk_bulk_prepare_enable(data->num_clocks, chip_pm->clks);
+	if (ret) {
+		dev_err(dev, "clk_enable failed: %d\n", ret);
 		return ret;
+	}
 
 	/*
-	 * On the very first resume, the pointer to the driver data
+	 * On the very first resume, the pointer to chip_pm->chip_data
 	 * will be NULL and this is intentional, because we do not
 	 * want to restore the GIC on the very first resume. So if
 	 * the pointer is not valid just return.
@@ -54,35 +63,14 @@
 
 static int gic_runtime_suspend(struct device *dev)
 {
-	struct gic_chip_data *gic = dev_get_drvdata(dev);
+	struct gic_chip_pm *chip_pm = dev_get_drvdata(dev);
+	struct gic_chip_data *gic = chip_pm->chip_data;
+	const struct gic_clk_data *data = chip_pm->clk_data;
 
 	gic_dist_save(gic);
 	gic_cpu_save(gic);
 
-	return pm_clk_suspend(dev);
-}
-
-static int gic_get_clocks(struct device *dev, const struct gic_clk_data *data)
-{
-	unsigned int i;
-	int ret;
-
-	if (!dev || !data)
-		return -EINVAL;
-
-	ret = pm_clk_create(dev);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < data->num_clocks; i++) {
-		ret = of_pm_clk_add_clk(dev, data->clocks[i]);
-		if (ret) {
-			dev_err(dev, "failed to add clock %s\n",
-				data->clocks[i]);
-			pm_clk_destroy(dev);
-			return ret;
-		}
-	}
+	clk_bulk_disable_unprepare(data->num_clocks, chip_pm->clks);
 
 	return 0;
 }
@@ -91,8 +79,8 @@
 {
 	struct device *dev = &pdev->dev;
 	const struct gic_clk_data *data;
-	struct gic_chip_data *gic;
-	int ret, irq;
+	struct gic_chip_pm *chip_pm;
+	int ret, irq, i;
 
 	data = of_device_get_match_data(&pdev->dev);
 	if (!data) {
@@ -100,28 +88,41 @@
 		return -ENODEV;
 	}
 
+	chip_pm = devm_kzalloc(dev, sizeof(*chip_pm), GFP_KERNEL);
+	if (!chip_pm)
+		return -ENOMEM;
+
 	irq = irq_of_parse_and_map(dev->of_node, 0);
 	if (!irq) {
 		dev_err(dev, "no parent interrupt found!\n");
 		return -EINVAL;
 	}
 
-	ret = gic_get_clocks(dev, data);
+	chip_pm->clks = devm_kcalloc(dev, data->num_clocks,
+				     sizeof(*chip_pm->clks), GFP_KERNEL);
+	if (!chip_pm->clks)
+		return -ENOMEM;
+
+	for (i = 0; i < data->num_clocks; i++)
+		chip_pm->clks[i].id = data->clocks[i];
+
+	ret = devm_clk_bulk_get(dev, data->num_clocks, chip_pm->clks);
 	if (ret)
 		goto irq_dispose;
 
+	chip_pm->clk_data = data;
+	dev_set_drvdata(dev, chip_pm);
+
 	pm_runtime_enable(dev);
 
 	ret = pm_runtime_get_sync(dev);
 	if (ret < 0)
 		goto rpm_disable;
 
-	ret = gic_of_init_child(dev, &gic, irq);
+	ret = gic_of_init_child(dev, &chip_pm->chip_data, irq);
 	if (ret)
 		goto rpm_put;
 
-	platform_set_drvdata(pdev, gic);
-
 	pm_runtime_put(dev);
 
 	dev_info(dev, "GIC IRQ controller registered\n");
@@ -132,7 +133,6 @@
 	pm_runtime_put_sync(dev);
 rpm_disable:
 	pm_runtime_disable(dev);
-	pm_clk_destroy(dev);
 irq_dispose:
 	irq_dispose_mapping(irq);
 
@@ -142,6 +142,8 @@
 static const struct dev_pm_ops gic_pm_ops = {
 	SET_RUNTIME_PM_OPS(gic_runtime_suspend,
 			   gic_runtime_resume, NULL)
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				     pm_runtime_force_resume)
 };
 
 static const char * const gic400_clocks[] = {
diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index de14e06..3c77ab6 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -110,7 +110,7 @@
 	if (v2m->flags & GICV2M_NEEDS_SPI_OFFSET)
 		msg->data -= v2m->spi_offset;
 
-	iommu_dma_map_msi_msg(data->irq, msg);
+	iommu_dma_compose_msi_msg(irq_data_get_msi_desc(data), msg);
 }
 
 static struct irq_chip gicv2m_irq_chip = {
@@ -167,6 +167,7 @@
 static int gicv2m_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 				   unsigned int nr_irqs, void *args)
 {
+	msi_alloc_info_t *info = args;
 	struct v2m_data *v2m = NULL, *tmp;
 	int hwirq, offset, i, err = 0;
 
@@ -186,6 +187,11 @@
 
 	hwirq = v2m->spi_start + offset;
 
+	err = iommu_dma_prepare_msi(info->desc,
+				    v2m->res.start + V2M_MSI_SETSPI_NS);
+	if (err)
+		return err;
+
 	for (i = 0; i < nr_irqs; i++) {
 		err = gicv2m_irq_gic_domain_alloc(domain, virq + i, hwirq + i);
 		if (err)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 128ac89..cfb9b4e 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -26,7 +26,6 @@
 #include <linux/interrupt.h>
 #include <linux/irqdomain.h>
 #include <linux/list.h>
-#include <linux/list_sort.h>
 #include <linux/log2.h>
 #include <linux/memblock.h>
 #include <linux/mm.h>
@@ -1179,7 +1178,7 @@
 	msg->address_hi		= upper_32_bits(addr);
 	msg->data		= its_get_event_id(d);
 
-	iommu_dma_map_msi_msg(d->irq, msg);
+	iommu_dma_compose_msi_msg(irq_data_get_msi_desc(d), msg);
 }
 
 static int its_irq_set_irqchip_state(struct irq_data *d,
@@ -1465,9 +1464,8 @@
 {
 	struct lpi_range *range;
 
-	range = kzalloc(sizeof(*range), GFP_KERNEL);
+	range = kmalloc(sizeof(*range), GFP_KERNEL);
 	if (range) {
-		INIT_LIST_HEAD(&range->entry);
 		range->base_id = base;
 		range->span = span;
 	}
@@ -1475,31 +1473,6 @@
 	return range;
 }
 
-static int lpi_range_cmp(void *priv, struct list_head *a, struct list_head *b)
-{
-	struct lpi_range *ra, *rb;
-
-	ra = container_of(a, struct lpi_range, entry);
-	rb = container_of(b, struct lpi_range, entry);
-
-	return ra->base_id - rb->base_id;
-}
-
-static void merge_lpi_ranges(void)
-{
-	struct lpi_range *range, *tmp;
-
-	list_for_each_entry_safe(range, tmp, &lpi_range_list, entry) {
-		if (!list_is_last(&range->entry, &lpi_range_list) &&
-		    (tmp->base_id == (range->base_id + range->span))) {
-			tmp->base_id = range->base_id;
-			tmp->span += range->span;
-			list_del(&range->entry);
-			kfree(range);
-		}
-	}
-}
-
 static int alloc_lpi_range(u32 nr_lpis, u32 *base)
 {
 	struct lpi_range *range, *tmp;
@@ -1529,25 +1502,49 @@
 	return err;
 }
 
+static void merge_lpi_ranges(struct lpi_range *a, struct lpi_range *b)
+{
+	if (&a->entry == &lpi_range_list || &b->entry == &lpi_range_list)
+		return;
+	if (a->base_id + a->span != b->base_id)
+		return;
+	b->base_id = a->base_id;
+	b->span += a->span;
+	list_del(&a->entry);
+	kfree(a);
+}
+
 static int free_lpi_range(u32 base, u32 nr_lpis)
 {
-	struct lpi_range *new;
-	int err = 0;
+	struct lpi_range *new, *old;
+
+	new = mk_lpi_range(base, nr_lpis);
+	if (!new)
+		return -ENOMEM;
 
 	mutex_lock(&lpi_range_lock);
 
-	new = mk_lpi_range(base, nr_lpis);
-	if (!new) {
-		err = -ENOMEM;
-		goto out;
+	list_for_each_entry_reverse(old, &lpi_range_list, entry) {
+		if (old->base_id < base)
+			break;
 	}
+	/*
+	 * old is the last element with ->base_id smaller than base,
+	 * so new goes right after it. If there are no elements with
+	 * ->base_id smaller than base, &old->entry ends up pointing
+	 * at the head of the list, and inserting new it the start of
+	 * the list is the right thing to do in that case as well.
+	 */
+	list_add(&new->entry, &old->entry);
+	/*
+	 * Now check if we can merge with the preceding and/or
+	 * following ranges.
+	 */
+	merge_lpi_ranges(old, new);
+	merge_lpi_ranges(new, list_next_entry(new, entry));
 
-	list_add(&new->entry, &lpi_range_list);
-	list_sort(NULL, &lpi_range_list, lpi_range_cmp);
-	merge_lpi_ranges();
-out:
 	mutex_unlock(&lpi_range_lock);
-	return err;
+	return 0;
 }
 
 static int __init its_lpi_init(u32 id_bits)
@@ -2487,7 +2484,7 @@
 	int err = 0;
 
 	/*
-	 * We ignore "dev" entierely, and rely on the dev_id that has
+	 * We ignore "dev" entirely, and rely on the dev_id that has
 	 * been passed via the scratchpad. This limits this domain's
 	 * usefulness to upper layers that definitely know that they
 	 * are built on top of the ITS.
@@ -2566,6 +2563,7 @@
 {
 	msi_alloc_info_t *info = args;
 	struct its_device *its_dev = info->scratchpad[0].ptr;
+	struct its_node *its = its_dev->its;
 	irq_hw_number_t hwirq;
 	int err;
 	int i;
@@ -2574,6 +2572,10 @@
 	if (err)
 		return err;
 
+	err = iommu_dma_prepare_msi(info->desc, its->get_msi_base(its_dev));
+	if (err)
+		return err;
+
 	for (i = 0; i < nr_irqs; i++) {
 		err = its_irq_gic_domain_alloc(domain, virq + i, hwirq + i);
 		if (err)
diff --git a/drivers/irqchip/irq-gic-v3-mbi.c b/drivers/irqchip/irq-gic-v3-mbi.c
index fbfa7ff..563a9b3 100644
--- a/drivers/irqchip/irq-gic-v3-mbi.c
+++ b/drivers/irqchip/irq-gic-v3-mbi.c
@@ -84,6 +84,7 @@
 static int mbi_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 				   unsigned int nr_irqs, void *args)
 {
+	msi_alloc_info_t *info = args;
 	struct mbi_range *mbi = NULL;
 	int hwirq, offset, i, err = 0;
 
@@ -104,6 +105,11 @@
 
 	hwirq = mbi->spi_start + offset;
 
+	err = iommu_dma_prepare_msi(info->desc,
+				    mbi_phys_base + GICD_SETSPI_NSR);
+	if (err)
+		return err;
+
 	for (i = 0; i < nr_irqs; i++) {
 		err = mbi_irq_gic_domain_alloc(domain, virq + i, hwirq + i);
 		if (err)
@@ -142,7 +148,7 @@
 	msg[0].address_lo = lower_32_bits(mbi_phys_base + GICD_SETSPI_NSR);
 	msg[0].data = data->parent_data->hwirq;
 
-	iommu_dma_map_msi_msg(data->irq, msg);
+	iommu_dma_compose_msi_msg(irq_data_get_msi_desc(data), msg);
 }
 
 #ifdef CONFIG_PCI_MSI
@@ -202,7 +208,7 @@
 	msg[1].address_lo = lower_32_bits(mbi_phys_base + GICD_CLRSPI_NSR);
 	msg[1].data = data->parent_data->hwirq;
 
-	iommu_dma_map_msi_msg(data->irq, &msg[1]);
+	iommu_dma_compose_msi_msg(irq_data_get_msi_desc(data), &msg[1]);
 }
 
 /* Platform-MSI specific irqchip */
diff --git a/drivers/irqchip/irq-imx-irqsteer.c b/drivers/irqchip/irq-imx-irqsteer.c
index 88df3d00..290531e 100644
--- a/drivers/irqchip/irq-imx-irqsteer.c
+++ b/drivers/irqchip/irq-imx-irqsteer.c
@@ -144,7 +144,6 @@
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct irqsteer_data *data;
-	struct resource *res;
 	u32 irqs_num;
 	int i, ret;
 
@@ -152,8 +151,7 @@
 	if (!data)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	data->regs = devm_ioremap_resource(&pdev->dev, res);
+	data->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(data->regs)) {
 		dev_err(&pdev->dev, "failed to initialize reg\n");
 		return PTR_ERR(data->regs);
diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c
index c671b32..669d291 100644
--- a/drivers/irqchip/irq-ls-scfg-msi.c
+++ b/drivers/irqchip/irq-ls-scfg-msi.c
@@ -100,7 +100,7 @@
 		msg->data |= cpumask_first(mask);
 	}
 
-	iommu_dma_map_msi_msg(data->irq, msg);
+	iommu_dma_compose_msi_msg(irq_data_get_msi_desc(data), msg);
 }
 
 static int ls_scfg_msi_set_affinity(struct irq_data *irq_data,
@@ -141,6 +141,7 @@
 					unsigned int nr_irqs,
 					void *args)
 {
+	msi_alloc_info_t *info = args;
 	struct ls_scfg_msi *msi_data = domain->host_data;
 	int pos, err = 0;
 
@@ -157,6 +158,10 @@
 	if (err)
 		return err;
 
+	err = iommu_dma_prepare_msi(info->desc, msi_data->msiir_addr);
+	if (err)
+		return err;
+
 	irq_domain_set_info(domain, virq, pos,
 			    &ls_scfg_msi_parent_chip, msi_data,
 			    handle_simple_irq, NULL, NULL);
diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index 8c03952..04c05a1 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -389,10 +389,8 @@
 	int k;
 
 	p = devm_kzalloc(dev, sizeof(*p), GFP_KERNEL);
-	if (!p) {
-		dev_err(dev, "failed to allocate driver data\n");
+	if (!p)
 		return -ENOMEM;
-	}
 
 	/* deal with driver instance configuration */
 	of_property_read_u32(dev->of_node, "sense-bitfield-width",
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index 7bd1d4c..e00f2fa 100644
--- a/drivers/irqchip/irq-stm32-exti.c
+++ b/drivers/irqchip/irq-stm32-exti.c
@@ -14,8 +14,10 @@
 #include <linux/irqchip.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
+#include <linux/module.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/of_platform.h>
 #include <linux/syscore_ops.h>
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
@@ -37,12 +39,6 @@
 
 #define UNDEF_REG ~0
 
-enum stm32_exti_hwspinlock {
-	HWSPINLOCK_UNKNOWN,
-	HWSPINLOCK_NONE,
-	HWSPINLOCK_READY,
-};
-
 struct stm32_desc_irq {
 	u32 exti;
 	u32 irq_parent;
@@ -69,8 +65,6 @@
 	void __iomem *base;
 	struct stm32_exti_chip_data *chips_data;
 	const struct stm32_exti_drv_data *drv_data;
-	struct device_node *node;
-	enum stm32_exti_hwspinlock hwlock_state;
 	struct hwspinlock *hwlock;
 };
 
@@ -285,49 +279,27 @@
 
 static int stm32_exti_hwspin_lock(struct stm32_exti_chip_data *chip_data)
 {
-	struct stm32_exti_host_data *host_data = chip_data->host_data;
-	struct hwspinlock *hwlock;
-	int id, ret = 0, timeout = 0;
+	int ret, timeout = 0;
 
-	/* first time, check for hwspinlock availability */
-	if (unlikely(host_data->hwlock_state == HWSPINLOCK_UNKNOWN)) {
-		id = of_hwspin_lock_get_id(host_data->node, 0);
-		if (id >= 0) {
-			hwlock = hwspin_lock_request_specific(id);
-			if (hwlock) {
-				/* found valid hwspinlock */
-				host_data->hwlock_state = HWSPINLOCK_READY;
-				host_data->hwlock = hwlock;
-				pr_debug("%s hwspinlock = %d\n", __func__, id);
-			} else {
-				host_data->hwlock_state = HWSPINLOCK_NONE;
-			}
-		} else if (id != -EPROBE_DEFER) {
-			host_data->hwlock_state = HWSPINLOCK_NONE;
-		} else {
-			/* hwspinlock driver shall be ready at that stage */
-			ret = -EPROBE_DEFER;
-		}
-	}
+	if (!chip_data->host_data->hwlock)
+		return 0;
 
-	if (likely(host_data->hwlock_state == HWSPINLOCK_READY)) {
-		/*
-		 * Use the x_raw API since we are under spin_lock protection.
-		 * Do not use the x_timeout API because we are under irq_disable
-		 * mode (see __setup_irq())
-		 */
-		do {
-			ret = hwspin_trylock_raw(host_data->hwlock);
-			if (!ret)
-				return 0;
+	/*
+	 * Use the x_raw API since we are under spin_lock protection.
+	 * Do not use the x_timeout API because we are under irq_disable
+	 * mode (see __setup_irq())
+	 */
+	do {
+		ret = hwspin_trylock_raw(chip_data->host_data->hwlock);
+		if (!ret)
+			return 0;
 
-			udelay(HWSPNLCK_RETRY_DELAY);
-			timeout += HWSPNLCK_RETRY_DELAY;
-		} while (timeout < HWSPNLCK_TIMEOUT);
+		udelay(HWSPNLCK_RETRY_DELAY);
+		timeout += HWSPNLCK_RETRY_DELAY;
+	} while (timeout < HWSPNLCK_TIMEOUT);
 
-		if (ret == -EBUSY)
-			ret = -ETIMEDOUT;
-	}
+	if (ret == -EBUSY)
+		ret = -ETIMEDOUT;
 
 	if (ret)
 		pr_err("%s can't get hwspinlock (%d)\n", __func__, ret);
@@ -337,7 +309,7 @@
 
 static void stm32_exti_hwspin_unlock(struct stm32_exti_chip_data *chip_data)
 {
-	if (likely(chip_data->host_data->hwlock_state == HWSPINLOCK_READY))
+	if (chip_data->host_data->hwlock)
 		hwspin_unlock_raw(chip_data->host_data->hwlock);
 }
 
@@ -586,8 +558,7 @@
 	return -EINVAL;
 }
 
-#ifdef CONFIG_PM
-static int stm32_exti_h_suspend(void)
+static int __maybe_unused stm32_exti_h_suspend(void)
 {
 	struct stm32_exti_chip_data *chip_data;
 	int i;
@@ -602,7 +573,7 @@
 	return 0;
 }
 
-static void stm32_exti_h_resume(void)
+static void __maybe_unused stm32_exti_h_resume(void)
 {
 	struct stm32_exti_chip_data *chip_data;
 	int i;
@@ -616,17 +587,22 @@
 }
 
 static struct syscore_ops stm32_exti_h_syscore_ops = {
+#ifdef CONFIG_PM_SLEEP
 	.suspend	= stm32_exti_h_suspend,
 	.resume		= stm32_exti_h_resume,
+#endif
 };
 
-static void stm32_exti_h_syscore_init(void)
+static void stm32_exti_h_syscore_init(struct stm32_exti_host_data *host_data)
 {
+	stm32_host_data = host_data;
 	register_syscore_ops(&stm32_exti_h_syscore_ops);
 }
-#else
-static inline void stm32_exti_h_syscore_init(void) {}
-#endif
+
+static void stm32_exti_h_syscore_deinit(void)
+{
+	unregister_syscore_ops(&stm32_exti_h_syscore_ops);
+}
 
 static struct irq_chip stm32_exti_h_chip = {
 	.name			= "stm32-exti-h",
@@ -683,8 +659,6 @@
 		return NULL;
 
 	host_data->drv_data = dd;
-	host_data->node = node;
-	host_data->hwlock_state = HWSPINLOCK_UNKNOWN;
 	host_data->chips_data = kcalloc(dd->bank_nr,
 					sizeof(struct stm32_exti_chip_data),
 					GFP_KERNEL);
@@ -711,7 +685,8 @@
 
 static struct
 stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data,
-					   u32 bank_idx)
+					   u32 bank_idx,
+					   struct device_node *node)
 {
 	const struct stm32_exti_bank *stm32_bank;
 	struct stm32_exti_chip_data *chip_data;
@@ -731,7 +706,7 @@
 	writel_relaxed(0, base + stm32_bank->imr_ofst);
 	writel_relaxed(0, base + stm32_bank->emr_ofst);
 
-	pr_info("%pOF: bank%d\n", h_data->node, bank_idx);
+	pr_info("%pOF: bank%d\n", node, bank_idx);
 
 	return chip_data;
 }
@@ -771,7 +746,7 @@
 		struct stm32_exti_chip_data *chip_data;
 
 		stm32_bank = drv_data->exti_banks[i];
-		chip_data = stm32_exti_chip_init(host_data, i);
+		chip_data = stm32_exti_chip_init(host_data, i, node);
 
 		gc = irq_get_domain_generic_chip(domain, i * IRQS_PER_BANK);
 
@@ -815,50 +790,130 @@
 	.xlate = irq_domain_xlate_twocell,
 };
 
-static int
-__init stm32_exti_hierarchy_init(const struct stm32_exti_drv_data *drv_data,
-				 struct device_node *node,
-				 struct device_node *parent)
+static void stm32_exti_remove_irq(void *data)
 {
+	struct irq_domain *domain = data;
+
+	irq_domain_remove(domain);
+}
+
+static int stm32_exti_remove(struct platform_device *pdev)
+{
+	stm32_exti_h_syscore_deinit();
+	return 0;
+}
+
+static int stm32_exti_probe(struct platform_device *pdev)
+{
+	int ret, i;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
 	struct irq_domain *parent_domain, *domain;
 	struct stm32_exti_host_data *host_data;
-	int ret, i;
+	const struct stm32_exti_drv_data *drv_data;
+	struct resource *res;
 
-	parent_domain = irq_find_host(parent);
-	if (!parent_domain) {
-		pr_err("interrupt-parent not found\n");
-		return -EINVAL;
-	}
-
-	host_data = stm32_exti_host_init(drv_data, node);
+	host_data = devm_kzalloc(dev, sizeof(*host_data), GFP_KERNEL);
 	if (!host_data)
 		return -ENOMEM;
 
+	/* check for optional hwspinlock which may be not available yet */
+	ret = of_hwspin_lock_get_id(np, 0);
+	if (ret == -EPROBE_DEFER)
+		/* hwspinlock framework not yet ready */
+		return ret;
+
+	if (ret >= 0) {
+		host_data->hwlock = devm_hwspin_lock_request_specific(dev, ret);
+		if (!host_data->hwlock) {
+			dev_err(dev, "Failed to request hwspinlock\n");
+			return -EINVAL;
+		}
+	} else if (ret != -ENOENT) {
+		/* note: ENOENT is a valid case (means 'no hwspinlock') */
+		dev_err(dev, "Failed to get hwspinlock\n");
+		return ret;
+	}
+
+	/* initialize host_data */
+	drv_data = of_device_get_match_data(dev);
+	if (!drv_data) {
+		dev_err(dev, "no of match data\n");
+		return -ENODEV;
+	}
+	host_data->drv_data = drv_data;
+
+	host_data->chips_data = devm_kcalloc(dev, drv_data->bank_nr,
+					     sizeof(*host_data->chips_data),
+					     GFP_KERNEL);
+	if (!host_data->chips_data)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	host_data->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(host_data->base)) {
+		dev_err(dev, "Unable to map registers\n");
+		return PTR_ERR(host_data->base);
+	}
+
 	for (i = 0; i < drv_data->bank_nr; i++)
-		stm32_exti_chip_init(host_data, i);
+		stm32_exti_chip_init(host_data, i, np);
+
+	parent_domain = irq_find_host(of_irq_find_parent(np));
+	if (!parent_domain) {
+		dev_err(dev, "GIC interrupt-parent not found\n");
+		return -EINVAL;
+	}
 
 	domain = irq_domain_add_hierarchy(parent_domain, 0,
 					  drv_data->bank_nr * IRQS_PER_BANK,
-					  node, &stm32_exti_h_domain_ops,
+					  np, &stm32_exti_h_domain_ops,
 					  host_data);
 
 	if (!domain) {
-		pr_err("%pOFn: Could not register exti domain.\n", node);
-		ret = -ENOMEM;
-		goto out_unmap;
+		dev_err(dev, "Could not register exti domain\n");
+		return -ENOMEM;
 	}
 
-	stm32_exti_h_syscore_init();
+	ret = devm_add_action_or_reset(dev, stm32_exti_remove_irq, domain);
+	if (ret)
+		return ret;
+
+	stm32_exti_h_syscore_init(host_data);
 
 	return 0;
-
-out_unmap:
-	iounmap(host_data->base);
-	kfree(host_data->chips_data);
-	kfree(host_data);
-	return ret;
 }
 
+/* platform driver only for MP1 */
+static const struct of_device_id stm32_exti_ids[] = {
+	{ .compatible = "st,stm32mp1-exti", .data = &stm32mp1_drv_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, stm32_exti_ids);
+
+static struct platform_driver stm32_exti_driver = {
+	.probe		= stm32_exti_probe,
+	.remove		= stm32_exti_remove,
+	.driver		= {
+		.name	= "stm32_exti",
+		.of_match_table = stm32_exti_ids,
+	},
+};
+
+static int __init stm32_exti_arch_init(void)
+{
+	return platform_driver_register(&stm32_exti_driver);
+}
+
+static void __exit stm32_exti_arch_exit(void)
+{
+	return platform_driver_unregister(&stm32_exti_driver);
+}
+
+arch_initcall(stm32_exti_arch_init);
+module_exit(stm32_exti_arch_exit);
+
+/* no platform driver for F4 and H7 */
 static int __init stm32f4_exti_of_init(struct device_node *np,
 				       struct device_node *parent)
 {
@@ -874,11 +929,3 @@
 }
 
 IRQCHIP_DECLARE(stm32h7_exti, "st,stm32h7-exti", stm32h7_exti_of_init);
-
-static int __init stm32mp1_exti_of_init(struct device_node *np,
-					struct device_node *parent)
-{
-	return stm32_exti_hierarchy_init(&stm32mp1_drv_data, np, parent);
-}
-
-IRQCHIP_DECLARE(stm32mp1_exti, "st,stm32mp1-exti", stm32mp1_exti_of_init);
diff --git a/drivers/irqchip/irq-ti-sci-inta.c b/drivers/irqchip/irq-ti-sci-inta.c
new file mode 100644
index 0000000..011b60a
--- /dev/null
+++ b/drivers/irqchip/irq-ti-sci-inta.c
@@ -0,0 +1,615 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Texas Instruments' K3 Interrupt Aggregator irqchip driver
+ *
+ * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
+ *	Lokesh Vutla <lokeshvutla@ti.com>
+ */
+
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/irqchip.h>
+#include <linux/irqdomain.h>
+#include <linux/interrupt.h>
+#include <linux/msi.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/soc/ti/ti_sci_inta_msi.h>
+#include <linux/soc/ti/ti_sci_protocol.h>
+#include <asm-generic/msi.h>
+
+#define TI_SCI_DEV_ID_MASK	0xffff
+#define TI_SCI_DEV_ID_SHIFT	16
+#define TI_SCI_IRQ_ID_MASK	0xffff
+#define TI_SCI_IRQ_ID_SHIFT	0
+#define HWIRQ_TO_DEVID(hwirq)	(((hwirq) >> (TI_SCI_DEV_ID_SHIFT)) & \
+				 (TI_SCI_DEV_ID_MASK))
+#define HWIRQ_TO_IRQID(hwirq)	((hwirq) & (TI_SCI_IRQ_ID_MASK))
+#define TO_HWIRQ(dev, index)	((((dev) & TI_SCI_DEV_ID_MASK) << \
+				 TI_SCI_DEV_ID_SHIFT) | \
+				((index) & TI_SCI_IRQ_ID_MASK))
+
+#define MAX_EVENTS_PER_VINT	64
+#define VINT_ENABLE_SET_OFFSET	0x0
+#define VINT_ENABLE_CLR_OFFSET	0x8
+#define VINT_STATUS_OFFSET	0x18
+
+/**
+ * struct ti_sci_inta_event_desc - Description of an event coming to
+ *				   Interrupt Aggregator. This serves
+ *				   as a mapping table for global event,
+ *				   hwirq and vint bit.
+ * @global_event:	Global event number corresponding to this event
+ * @hwirq:		Hwirq of the incoming interrupt
+ * @vint_bit:		Corresponding vint bit to which this event is attached.
+ */
+struct ti_sci_inta_event_desc {
+	u16 global_event;
+	u32 hwirq;
+	u8 vint_bit;
+};
+
+/**
+ * struct ti_sci_inta_vint_desc - Description of a virtual interrupt coming out
+ *				  of Interrupt Aggregator.
+ * @domain:		Pointer to IRQ domain to which this vint belongs.
+ * @list:		List entry for the vint list
+ * @event_map:		Bitmap to manage the allocation of events to vint.
+ * @events:		Array of event descriptors assigned to this vint.
+ * @parent_virq:	Linux IRQ number that gets attached to parent
+ * @vint_id:		TISCI vint ID
+ */
+struct ti_sci_inta_vint_desc {
+	struct irq_domain *domain;
+	struct list_head list;
+	DECLARE_BITMAP(event_map, MAX_EVENTS_PER_VINT);
+	struct ti_sci_inta_event_desc events[MAX_EVENTS_PER_VINT];
+	unsigned int parent_virq;
+	u16 vint_id;
+};
+
+/**
+ * struct ti_sci_inta_irq_domain - Structure representing a TISCI based
+ *				   Interrupt Aggregator IRQ domain.
+ * @sci:		Pointer to TISCI handle
+ * @vint:		TISCI resource pointer representing IA inerrupts.
+ * @global_event:	TISCI resource pointer representing global events.
+ * @vint_list:		List of the vints active in the system
+ * @vint_mutex:		Mutex to protect vint_list
+ * @base:		Base address of the memory mapped IO registers
+ * @pdev:		Pointer to platform device.
+ */
+struct ti_sci_inta_irq_domain {
+	const struct ti_sci_handle *sci;
+	struct ti_sci_resource *vint;
+	struct ti_sci_resource *global_event;
+	struct list_head vint_list;
+	/* Mutex to protect vint list */
+	struct mutex vint_mutex;
+	void __iomem *base;
+	struct platform_device *pdev;
+};
+
+#define to_vint_desc(e, i) container_of(e, struct ti_sci_inta_vint_desc, \
+					events[i])
+
+/**
+ * ti_sci_inta_irq_handler() - Chained IRQ handler for the vint irqs
+ * @desc:	Pointer to irq_desc corresponding to the irq
+ */
+static void ti_sci_inta_irq_handler(struct irq_desc *desc)
+{
+	struct ti_sci_inta_vint_desc *vint_desc;
+	struct ti_sci_inta_irq_domain *inta;
+	struct irq_domain *domain;
+	unsigned int virq, bit;
+	unsigned long val;
+
+	vint_desc = irq_desc_get_handler_data(desc);
+	domain = vint_desc->domain;
+	inta = domain->host_data;
+
+	chained_irq_enter(irq_desc_get_chip(desc), desc);
+
+	val = readq_relaxed(inta->base + vint_desc->vint_id * 0x1000 +
+			    VINT_STATUS_OFFSET);
+
+	for_each_set_bit(bit, &val, MAX_EVENTS_PER_VINT) {
+		virq = irq_find_mapping(domain, vint_desc->events[bit].hwirq);
+		if (virq)
+			generic_handle_irq(virq);
+	}
+
+	chained_irq_exit(irq_desc_get_chip(desc), desc);
+}
+
+/**
+ * ti_sci_inta_alloc_parent_irq() - Allocate parent irq to Interrupt aggregator
+ * @domain:	IRQ domain corresponding to Interrupt Aggregator
+ *
+ * Return 0 if all went well else corresponding error value.
+ */
+static struct ti_sci_inta_vint_desc *ti_sci_inta_alloc_parent_irq(struct irq_domain *domain)
+{
+	struct ti_sci_inta_irq_domain *inta = domain->host_data;
+	struct ti_sci_inta_vint_desc *vint_desc;
+	struct irq_fwspec parent_fwspec;
+	unsigned int parent_virq;
+	u16 vint_id;
+
+	vint_id = ti_sci_get_free_resource(inta->vint);
+	if (vint_id == TI_SCI_RESOURCE_NULL)
+		return ERR_PTR(-EINVAL);
+
+	vint_desc = kzalloc(sizeof(*vint_desc), GFP_KERNEL);
+	if (!vint_desc)
+		return ERR_PTR(-ENOMEM);
+
+	vint_desc->domain = domain;
+	vint_desc->vint_id = vint_id;
+	INIT_LIST_HEAD(&vint_desc->list);
+
+	parent_fwspec.fwnode = of_node_to_fwnode(of_irq_find_parent(dev_of_node(&inta->pdev->dev)));
+	parent_fwspec.param_count = 2;
+	parent_fwspec.param[0] = inta->pdev->id;
+	parent_fwspec.param[1] = vint_desc->vint_id;
+
+	parent_virq = irq_create_fwspec_mapping(&parent_fwspec);
+	if (parent_virq <= 0) {
+		kfree(vint_desc);
+		return ERR_PTR(parent_virq);
+	}
+	vint_desc->parent_virq = parent_virq;
+
+	list_add_tail(&vint_desc->list, &inta->vint_list);
+	irq_set_chained_handler_and_data(vint_desc->parent_virq,
+					 ti_sci_inta_irq_handler, vint_desc);
+
+	return vint_desc;
+}
+
+/**
+ * ti_sci_inta_alloc_event() - Attach an event to a IA vint.
+ * @vint_desc:	Pointer to vint_desc to which the event gets attached
+ * @free_bit:	Bit inside vint to which event gets attached
+ * @hwirq:	hwirq of the input event
+ *
+ * Return event_desc pointer if all went ok else appropriate error value.
+ */
+static struct ti_sci_inta_event_desc *ti_sci_inta_alloc_event(struct ti_sci_inta_vint_desc *vint_desc,
+							      u16 free_bit,
+							      u32 hwirq)
+{
+	struct ti_sci_inta_irq_domain *inta = vint_desc->domain->host_data;
+	struct ti_sci_inta_event_desc *event_desc;
+	u16 dev_id, dev_index;
+	int err;
+
+	dev_id = HWIRQ_TO_DEVID(hwirq);
+	dev_index = HWIRQ_TO_IRQID(hwirq);
+
+	event_desc = &vint_desc->events[free_bit];
+	event_desc->hwirq = hwirq;
+	event_desc->vint_bit = free_bit;
+	event_desc->global_event = ti_sci_get_free_resource(inta->global_event);
+	if (event_desc->global_event == TI_SCI_RESOURCE_NULL)
+		return ERR_PTR(-EINVAL);
+
+	err = inta->sci->ops.rm_irq_ops.set_event_map(inta->sci,
+						      dev_id, dev_index,
+						      inta->pdev->id,
+						      vint_desc->vint_id,
+						      event_desc->global_event,
+						      free_bit);
+	if (err)
+		goto free_global_event;
+
+	return event_desc;
+free_global_event:
+	ti_sci_release_resource(inta->global_event, event_desc->global_event);
+	return ERR_PTR(err);
+}
+
+/**
+ * ti_sci_inta_alloc_irq() -  Allocate an irq within INTA domain
+ * @domain:	irq_domain pointer corresponding to INTA
+ * @hwirq:	hwirq of the input event
+ *
+ * Note: Allocation happens in the following manner:
+ *	- Find a free bit available in any of the vints available in the list.
+ *	- If not found, allocate a vint from the vint pool
+ *	- Attach the free bit to input hwirq.
+ * Return event_desc if all went ok else appropriate error value.
+ */
+static struct ti_sci_inta_event_desc *ti_sci_inta_alloc_irq(struct irq_domain *domain,
+							    u32 hwirq)
+{
+	struct ti_sci_inta_irq_domain *inta = domain->host_data;
+	struct ti_sci_inta_vint_desc *vint_desc = NULL;
+	struct ti_sci_inta_event_desc *event_desc;
+	u16 free_bit;
+
+	mutex_lock(&inta->vint_mutex);
+	list_for_each_entry(vint_desc, &inta->vint_list, list) {
+		free_bit = find_first_zero_bit(vint_desc->event_map,
+					       MAX_EVENTS_PER_VINT);
+		if (free_bit != MAX_EVENTS_PER_VINT) {
+			set_bit(free_bit, vint_desc->event_map);
+			goto alloc_event;
+		}
+	}
+
+	/* No free bits available. Allocate a new vint */
+	vint_desc = ti_sci_inta_alloc_parent_irq(domain);
+	if (IS_ERR(vint_desc)) {
+		mutex_unlock(&inta->vint_mutex);
+		return ERR_PTR(PTR_ERR(vint_desc));
+	}
+
+	free_bit = find_first_zero_bit(vint_desc->event_map,
+				       MAX_EVENTS_PER_VINT);
+	set_bit(free_bit, vint_desc->event_map);
+
+alloc_event:
+	event_desc = ti_sci_inta_alloc_event(vint_desc, free_bit, hwirq);
+	if (IS_ERR(event_desc))
+		clear_bit(free_bit, vint_desc->event_map);
+
+	mutex_unlock(&inta->vint_mutex);
+	return event_desc;
+}
+
+/**
+ * ti_sci_inta_free_parent_irq() - Free a parent irq to INTA
+ * @inta:	Pointer to inta domain.
+ * @vint_desc:	Pointer to vint_desc that needs to be freed.
+ */
+static void ti_sci_inta_free_parent_irq(struct ti_sci_inta_irq_domain *inta,
+					struct ti_sci_inta_vint_desc *vint_desc)
+{
+	if (find_first_bit(vint_desc->event_map, MAX_EVENTS_PER_VINT) == MAX_EVENTS_PER_VINT) {
+		list_del(&vint_desc->list);
+		ti_sci_release_resource(inta->vint, vint_desc->vint_id);
+		irq_dispose_mapping(vint_desc->parent_virq);
+		kfree(vint_desc);
+	}
+}
+
+/**
+ * ti_sci_inta_free_irq() - Free an IRQ within INTA domain
+ * @event_desc:	Pointer to event_desc that needs to be freed.
+ * @hwirq:	Hwirq number within INTA domain that needs to be freed
+ */
+static void ti_sci_inta_free_irq(struct ti_sci_inta_event_desc *event_desc,
+				 u32 hwirq)
+{
+	struct ti_sci_inta_vint_desc *vint_desc;
+	struct ti_sci_inta_irq_domain *inta;
+
+	vint_desc = to_vint_desc(event_desc, event_desc->vint_bit);
+	inta = vint_desc->domain->host_data;
+	/* free event irq */
+	mutex_lock(&inta->vint_mutex);
+	inta->sci->ops.rm_irq_ops.free_event_map(inta->sci,
+						 HWIRQ_TO_DEVID(hwirq),
+						 HWIRQ_TO_IRQID(hwirq),
+						 inta->pdev->id,
+						 vint_desc->vint_id,
+						 event_desc->global_event,
+						 event_desc->vint_bit);
+
+	clear_bit(event_desc->vint_bit, vint_desc->event_map);
+	ti_sci_release_resource(inta->global_event, event_desc->global_event);
+	event_desc->global_event = TI_SCI_RESOURCE_NULL;
+	event_desc->hwirq = 0;
+
+	ti_sci_inta_free_parent_irq(inta, vint_desc);
+	mutex_unlock(&inta->vint_mutex);
+}
+
+/**
+ * ti_sci_inta_request_resources() - Allocate resources for input irq
+ * @data: Pointer to corresponding irq_data
+ *
+ * Note: This is the core api where the actual allocation happens for input
+ *	 hwirq. This allocation involves creating a parent irq for vint.
+ *	 If this is done in irq_domain_ops.alloc() then a deadlock is reached
+ *	 for allocation. So this allocation is being done in request_resources()
+ *
+ * Return: 0 if all went well else corresponding error.
+ */
+static int ti_sci_inta_request_resources(struct irq_data *data)
+{
+	struct ti_sci_inta_event_desc *event_desc;
+
+	event_desc = ti_sci_inta_alloc_irq(data->domain, data->hwirq);
+	if (IS_ERR(event_desc))
+		return PTR_ERR(event_desc);
+
+	data->chip_data = event_desc;
+
+	return 0;
+}
+
+/**
+ * ti_sci_inta_release_resources - Release resources for input irq
+ * @data: Pointer to corresponding irq_data
+ *
+ * Note: Corresponding to request_resources(), all the unmapping and deletion
+ *	 of parent vint irqs happens in this api.
+ */
+static void ti_sci_inta_release_resources(struct irq_data *data)
+{
+	struct ti_sci_inta_event_desc *event_desc;
+
+	event_desc = irq_data_get_irq_chip_data(data);
+	ti_sci_inta_free_irq(event_desc, data->hwirq);
+}
+
+/**
+ * ti_sci_inta_manage_event() - Control the event based on the offset
+ * @data:	Pointer to corresponding irq_data
+ * @offset:	register offset using which event is controlled.
+ */
+static void ti_sci_inta_manage_event(struct irq_data *data, u32 offset)
+{
+	struct ti_sci_inta_event_desc *event_desc;
+	struct ti_sci_inta_vint_desc *vint_desc;
+	struct ti_sci_inta_irq_domain *inta;
+
+	event_desc = irq_data_get_irq_chip_data(data);
+	vint_desc = to_vint_desc(event_desc, event_desc->vint_bit);
+	inta = data->domain->host_data;
+
+	writeq_relaxed(BIT(event_desc->vint_bit),
+		       inta->base + vint_desc->vint_id * 0x1000 + offset);
+}
+
+/**
+ * ti_sci_inta_mask_irq() - Mask an event
+ * @data:	Pointer to corresponding irq_data
+ */
+static void ti_sci_inta_mask_irq(struct irq_data *data)
+{
+	ti_sci_inta_manage_event(data, VINT_ENABLE_CLR_OFFSET);
+}
+
+/**
+ * ti_sci_inta_unmask_irq() - Unmask an event
+ * @data:	Pointer to corresponding irq_data
+ */
+static void ti_sci_inta_unmask_irq(struct irq_data *data)
+{
+	ti_sci_inta_manage_event(data, VINT_ENABLE_SET_OFFSET);
+}
+
+/**
+ * ti_sci_inta_ack_irq() - Ack an event
+ * @data:	Pointer to corresponding irq_data
+ */
+static void ti_sci_inta_ack_irq(struct irq_data *data)
+{
+	/*
+	 * Do not clear the event if hardware is capable of sending
+	 * a down event.
+	 */
+	if (irqd_get_trigger_type(data) != IRQF_TRIGGER_HIGH)
+		ti_sci_inta_manage_event(data, VINT_STATUS_OFFSET);
+}
+
+static int ti_sci_inta_set_affinity(struct irq_data *d,
+				    const struct cpumask *mask_val, bool force)
+{
+	return -EINVAL;
+}
+
+/**
+ * ti_sci_inta_set_type() - Update the trigger type of the irq.
+ * @data:	Pointer to corresponding irq_data
+ * @type:	Trigger type as specified by user
+ *
+ * Note: This updates the handle_irq callback for level msi.
+ *
+ * Return 0 if all went well else appropriate error.
+ */
+static int ti_sci_inta_set_type(struct irq_data *data, unsigned int type)
+{
+	/*
+	 * .alloc default sets handle_edge_irq. But if the user specifies
+	 * that IRQ is level MSI, then update the handle to handle_level_irq
+	 */
+	switch (type & IRQ_TYPE_SENSE_MASK) {
+	case IRQF_TRIGGER_HIGH:
+		irq_set_handler_locked(data, handle_level_irq);
+		return 0;
+	case IRQF_TRIGGER_RISING:
+		return 0;
+	default:
+		return -EINVAL;
+	}
+
+	return -EINVAL;
+}
+
+static struct irq_chip ti_sci_inta_irq_chip = {
+	.name			= "INTA",
+	.irq_ack		= ti_sci_inta_ack_irq,
+	.irq_mask		= ti_sci_inta_mask_irq,
+	.irq_set_type		= ti_sci_inta_set_type,
+	.irq_unmask		= ti_sci_inta_unmask_irq,
+	.irq_set_affinity	= ti_sci_inta_set_affinity,
+	.irq_request_resources	= ti_sci_inta_request_resources,
+	.irq_release_resources	= ti_sci_inta_release_resources,
+};
+
+/**
+ * ti_sci_inta_irq_domain_free() - Free an IRQ from the IRQ domain
+ * @domain:	Domain to which the irqs belong
+ * @virq:	base linux virtual IRQ to be freed.
+ * @nr_irqs:	Number of continuous irqs to be freed
+ */
+static void ti_sci_inta_irq_domain_free(struct irq_domain *domain,
+					unsigned int virq, unsigned int nr_irqs)
+{
+	struct irq_data *data = irq_domain_get_irq_data(domain, virq);
+
+	irq_domain_reset_irq_data(data);
+}
+
+/**
+ * ti_sci_inta_irq_domain_alloc() - Allocate Interrupt aggregator IRQs
+ * @domain:	Point to the interrupt aggregator IRQ domain
+ * @virq:	Corresponding Linux virtual IRQ number
+ * @nr_irqs:	Continuous irqs to be allocated
+ * @data:	Pointer to firmware specifier
+ *
+ * No actual allocation happens here.
+ *
+ * Return 0 if all went well else appropriate error value.
+ */
+static int ti_sci_inta_irq_domain_alloc(struct irq_domain *domain,
+					unsigned int virq, unsigned int nr_irqs,
+					void *data)
+{
+	msi_alloc_info_t *arg = data;
+
+	irq_domain_set_info(domain, virq, arg->hwirq, &ti_sci_inta_irq_chip,
+			    NULL, handle_edge_irq, NULL, NULL);
+
+	return 0;
+}
+
+static const struct irq_domain_ops ti_sci_inta_irq_domain_ops = {
+	.free		= ti_sci_inta_irq_domain_free,
+	.alloc		= ti_sci_inta_irq_domain_alloc,
+};
+
+static struct irq_chip ti_sci_inta_msi_irq_chip = {
+	.name			= "MSI-INTA",
+	.flags			= IRQCHIP_SUPPORTS_LEVEL_MSI,
+};
+
+static void ti_sci_inta_msi_set_desc(msi_alloc_info_t *arg,
+				     struct msi_desc *desc)
+{
+	struct platform_device *pdev = to_platform_device(desc->dev);
+
+	arg->desc = desc;
+	arg->hwirq = TO_HWIRQ(pdev->id, desc->inta.dev_index);
+}
+
+static struct msi_domain_ops ti_sci_inta_msi_ops = {
+	.set_desc	= ti_sci_inta_msi_set_desc,
+};
+
+static struct msi_domain_info ti_sci_inta_msi_domain_info = {
+	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		   MSI_FLAG_LEVEL_CAPABLE),
+	.ops	= &ti_sci_inta_msi_ops,
+	.chip	= &ti_sci_inta_msi_irq_chip,
+};
+
+static int ti_sci_inta_irq_domain_probe(struct platform_device *pdev)
+{
+	struct irq_domain *parent_domain, *domain, *msi_domain;
+	struct device_node *parent_node, *node;
+	struct ti_sci_inta_irq_domain *inta;
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	int ret;
+
+	node = dev_of_node(dev);
+	parent_node = of_irq_find_parent(node);
+	if (!parent_node) {
+		dev_err(dev, "Failed to get IRQ parent node\n");
+		return -ENODEV;
+	}
+
+	parent_domain = irq_find_host(parent_node);
+	if (!parent_domain)
+		return -EPROBE_DEFER;
+
+	inta = devm_kzalloc(dev, sizeof(*inta), GFP_KERNEL);
+	if (!inta)
+		return -ENOMEM;
+
+	inta->pdev = pdev;
+	inta->sci = devm_ti_sci_get_by_phandle(dev, "ti,sci");
+	if (IS_ERR(inta->sci)) {
+		ret = PTR_ERR(inta->sci);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "ti,sci read fail %d\n", ret);
+		inta->sci = NULL;
+		return ret;
+	}
+
+	ret = of_property_read_u32(dev->of_node, "ti,sci-dev-id", &pdev->id);
+	if (ret) {
+		dev_err(dev, "missing 'ti,sci-dev-id' property\n");
+		return -EINVAL;
+	}
+
+	inta->vint = devm_ti_sci_get_of_resource(inta->sci, dev, pdev->id,
+						 "ti,sci-rm-range-vint");
+	if (IS_ERR(inta->vint)) {
+		dev_err(dev, "VINT resource allocation failed\n");
+		return PTR_ERR(inta->vint);
+	}
+
+	inta->global_event = devm_ti_sci_get_of_resource(inta->sci, dev, pdev->id,
+						"ti,sci-rm-range-global-event");
+	if (IS_ERR(inta->global_event)) {
+		dev_err(dev, "Global event resource allocation failed\n");
+		return PTR_ERR(inta->global_event);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	inta->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(inta->base))
+		return -ENODEV;
+
+	domain = irq_domain_add_linear(dev_of_node(dev),
+				       ti_sci_get_num_resources(inta->vint),
+				       &ti_sci_inta_irq_domain_ops, inta);
+	if (!domain) {
+		dev_err(dev, "Failed to allocate IRQ domain\n");
+		return -ENOMEM;
+	}
+
+	msi_domain = ti_sci_inta_msi_create_irq_domain(of_node_to_fwnode(node),
+						&ti_sci_inta_msi_domain_info,
+						domain);
+	if (!msi_domain) {
+		irq_domain_remove(domain);
+		dev_err(dev, "Failed to allocate msi domain\n");
+		return -ENOMEM;
+	}
+
+	INIT_LIST_HEAD(&inta->vint_list);
+	mutex_init(&inta->vint_mutex);
+
+	return 0;
+}
+
+static const struct of_device_id ti_sci_inta_irq_domain_of_match[] = {
+	{ .compatible = "ti,sci-inta", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, ti_sci_inta_irq_domain_of_match);
+
+static struct platform_driver ti_sci_inta_irq_domain_driver = {
+	.probe = ti_sci_inta_irq_domain_probe,
+	.driver = {
+		.name = "ti-sci-inta",
+		.of_match_table = ti_sci_inta_irq_domain_of_match,
+	},
+};
+module_platform_driver(ti_sci_inta_irq_domain_driver);
+
+MODULE_AUTHOR("Lokesh Vutla <lokeshvutla@ticom>");
+MODULE_DESCRIPTION("K3 Interrupt Aggregator driver over TI SCI protocol");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/irqchip/irq-ti-sci-intr.c b/drivers/irqchip/irq-ti-sci-intr.c
new file mode 100644
index 0000000..59d51a2
--- /dev/null
+++ b/drivers/irqchip/irq-ti-sci-intr.c
@@ -0,0 +1,275 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Texas Instruments' K3 Interrupt Router irqchip driver
+ *
+ * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
+ *	Lokesh Vutla <lokeshvutla@ti.com>
+ */
+
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/io.h>
+#include <linux/irqchip.h>
+#include <linux/irqdomain.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/soc/ti/ti_sci_protocol.h>
+
+#define TI_SCI_DEV_ID_MASK	0xffff
+#define TI_SCI_DEV_ID_SHIFT	16
+#define TI_SCI_IRQ_ID_MASK	0xffff
+#define TI_SCI_IRQ_ID_SHIFT	0
+#define HWIRQ_TO_DEVID(hwirq)	(((hwirq) >> (TI_SCI_DEV_ID_SHIFT)) & \
+				 (TI_SCI_DEV_ID_MASK))
+#define HWIRQ_TO_IRQID(hwirq)	((hwirq) & (TI_SCI_IRQ_ID_MASK))
+#define TO_HWIRQ(dev, index)	((((dev) & TI_SCI_DEV_ID_MASK) << \
+				 TI_SCI_DEV_ID_SHIFT) | \
+				((index) & TI_SCI_IRQ_ID_MASK))
+
+/**
+ * struct ti_sci_intr_irq_domain - Structure representing a TISCI based
+ *				   Interrupt Router IRQ domain.
+ * @sci:	Pointer to TISCI handle
+ * @dst_irq:	TISCI resource pointer representing GIC irq controller.
+ * @dst_id:	TISCI device ID of the GIC irq controller.
+ * @type:	Specifies the trigger type supported by this Interrupt Router
+ */
+struct ti_sci_intr_irq_domain {
+	const struct ti_sci_handle *sci;
+	struct ti_sci_resource *dst_irq;
+	u32 dst_id;
+	u32 type;
+};
+
+static struct irq_chip ti_sci_intr_irq_chip = {
+	.name			= "INTR",
+	.irq_eoi		= irq_chip_eoi_parent,
+	.irq_mask		= irq_chip_mask_parent,
+	.irq_unmask		= irq_chip_unmask_parent,
+	.irq_set_type		= irq_chip_set_type_parent,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
+	.irq_set_affinity	= irq_chip_set_affinity_parent,
+};
+
+/**
+ * ti_sci_intr_irq_domain_translate() - Retrieve hwirq and type from
+ *					IRQ firmware specific handler.
+ * @domain:	Pointer to IRQ domain
+ * @fwspec:	Pointer to IRQ specific firmware structure
+ * @hwirq:	IRQ number identified by hardware
+ * @type:	IRQ type
+ *
+ * Return 0 if all went ok else appropriate error.
+ */
+static int ti_sci_intr_irq_domain_translate(struct irq_domain *domain,
+					    struct irq_fwspec *fwspec,
+					    unsigned long *hwirq,
+					    unsigned int *type)
+{
+	struct ti_sci_intr_irq_domain *intr = domain->host_data;
+
+	if (fwspec->param_count != 2)
+		return -EINVAL;
+
+	*hwirq = TO_HWIRQ(fwspec->param[0], fwspec->param[1]);
+	*type = intr->type;
+
+	return 0;
+}
+
+/**
+ * ti_sci_intr_irq_domain_free() - Free the specified IRQs from the domain.
+ * @domain:	Domain to which the irqs belong
+ * @virq:	Linux virtual IRQ to be freed.
+ * @nr_irqs:	Number of continuous irqs to be freed
+ */
+static void ti_sci_intr_irq_domain_free(struct irq_domain *domain,
+					unsigned int virq, unsigned int nr_irqs)
+{
+	struct ti_sci_intr_irq_domain *intr = domain->host_data;
+	struct irq_data *data, *parent_data;
+	u16 dev_id, irq_index;
+
+	parent_data = irq_domain_get_irq_data(domain->parent, virq);
+	data = irq_domain_get_irq_data(domain, virq);
+	irq_index = HWIRQ_TO_IRQID(data->hwirq);
+	dev_id = HWIRQ_TO_DEVID(data->hwirq);
+
+	intr->sci->ops.rm_irq_ops.free_irq(intr->sci, dev_id, irq_index,
+					   intr->dst_id, parent_data->hwirq);
+	ti_sci_release_resource(intr->dst_irq, parent_data->hwirq);
+	irq_domain_free_irqs_parent(domain, virq, 1);
+	irq_domain_reset_irq_data(data);
+}
+
+/**
+ * ti_sci_intr_alloc_gic_irq() - Allocate GIC specific IRQ
+ * @domain:	Pointer to the interrupt router IRQ domain
+ * @virq:	Corresponding Linux virtual IRQ number
+ * @hwirq:	Corresponding hwirq for the IRQ within this IRQ domain
+ *
+ * Returns 0 if all went well else appropriate error pointer.
+ */
+static int ti_sci_intr_alloc_gic_irq(struct irq_domain *domain,
+				     unsigned int virq, u32 hwirq)
+{
+	struct ti_sci_intr_irq_domain *intr = domain->host_data;
+	struct irq_fwspec fwspec;
+	u16 dev_id, irq_index;
+	u16 dst_irq;
+	int err;
+
+	dev_id = HWIRQ_TO_DEVID(hwirq);
+	irq_index = HWIRQ_TO_IRQID(hwirq);
+
+	dst_irq = ti_sci_get_free_resource(intr->dst_irq);
+	if (dst_irq == TI_SCI_RESOURCE_NULL)
+		return -EINVAL;
+
+	fwspec.fwnode = domain->parent->fwnode;
+	fwspec.param_count = 3;
+	fwspec.param[0] = 0;	/* SPI */
+	fwspec.param[1] = dst_irq - 32; /* SPI offset */
+	fwspec.param[2] = intr->type;
+
+	err = irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec);
+	if (err)
+		goto err_irqs;
+
+	err = intr->sci->ops.rm_irq_ops.set_irq(intr->sci, dev_id, irq_index,
+						intr->dst_id, dst_irq);
+	if (err)
+		goto err_msg;
+
+	return 0;
+
+err_msg:
+	irq_domain_free_irqs_parent(domain, virq, 1);
+err_irqs:
+	ti_sci_release_resource(intr->dst_irq, dst_irq);
+	return err;
+}
+
+/**
+ * ti_sci_intr_irq_domain_alloc() - Allocate Interrupt router IRQs
+ * @domain:	Point to the interrupt router IRQ domain
+ * @virq:	Corresponding Linux virtual IRQ number
+ * @nr_irqs:	Continuous irqs to be allocated
+ * @data:	Pointer to firmware specifier
+ *
+ * Return 0 if all went well else appropriate error value.
+ */
+static int ti_sci_intr_irq_domain_alloc(struct irq_domain *domain,
+					unsigned int virq, unsigned int nr_irqs,
+					void *data)
+{
+	struct irq_fwspec *fwspec = data;
+	unsigned long hwirq;
+	unsigned int flags;
+	int err;
+
+	err = ti_sci_intr_irq_domain_translate(domain, fwspec, &hwirq, &flags);
+	if (err)
+		return err;
+
+	err = ti_sci_intr_alloc_gic_irq(domain, virq, hwirq);
+	if (err)
+		return err;
+
+	irq_domain_set_hwirq_and_chip(domain, virq, hwirq,
+				      &ti_sci_intr_irq_chip, NULL);
+
+	return 0;
+}
+
+static const struct irq_domain_ops ti_sci_intr_irq_domain_ops = {
+	.free		= ti_sci_intr_irq_domain_free,
+	.alloc		= ti_sci_intr_irq_domain_alloc,
+	.translate	= ti_sci_intr_irq_domain_translate,
+};
+
+static int ti_sci_intr_irq_domain_probe(struct platform_device *pdev)
+{
+	struct irq_domain *parent_domain, *domain;
+	struct ti_sci_intr_irq_domain *intr;
+	struct device_node *parent_node;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	parent_node = of_irq_find_parent(dev_of_node(dev));
+	if (!parent_node) {
+		dev_err(dev, "Failed to get IRQ parent node\n");
+		return -ENODEV;
+	}
+
+	parent_domain = irq_find_host(parent_node);
+	if (!parent_domain) {
+		dev_err(dev, "Failed to find IRQ parent domain\n");
+		return -ENODEV;
+	}
+
+	intr = devm_kzalloc(dev, sizeof(*intr), GFP_KERNEL);
+	if (!intr)
+		return -ENOMEM;
+
+	ret = of_property_read_u32(dev_of_node(dev), "ti,intr-trigger-type",
+				   &intr->type);
+	if (ret) {
+		dev_err(dev, "missing ti,intr-trigger-type property\n");
+		return -EINVAL;
+	}
+
+	intr->sci = devm_ti_sci_get_by_phandle(dev, "ti,sci");
+	if (IS_ERR(intr->sci)) {
+		ret = PTR_ERR(intr->sci);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "ti,sci read fail %d\n", ret);
+		intr->sci = NULL;
+		return ret;
+	}
+
+	ret = of_property_read_u32(dev_of_node(dev), "ti,sci-dst-id",
+				   &intr->dst_id);
+	if (ret) {
+		dev_err(dev, "missing 'ti,sci-dst-id' property\n");
+		return -EINVAL;
+	}
+
+	intr->dst_irq = devm_ti_sci_get_of_resource(intr->sci, dev,
+						    intr->dst_id,
+						    "ti,sci-rm-range-girq");
+	if (IS_ERR(intr->dst_irq)) {
+		dev_err(dev, "Destination irq resource allocation failed\n");
+		return PTR_ERR(intr->dst_irq);
+	}
+
+	domain = irq_domain_add_hierarchy(parent_domain, 0, 0, dev_of_node(dev),
+					  &ti_sci_intr_irq_domain_ops, intr);
+	if (!domain) {
+		dev_err(dev, "Failed to allocate IRQ domain\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id ti_sci_intr_irq_domain_of_match[] = {
+	{ .compatible = "ti,sci-intr", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, ti_sci_intr_irq_domain_of_match);
+
+static struct platform_driver ti_sci_intr_irq_domain_driver = {
+	.probe = ti_sci_intr_irq_domain_probe,
+	.driver = {
+		.name = "ti-sci-intr",
+		.of_match_table = ti_sci_intr_irq_domain_of_match,
+	},
+};
+module_platform_driver(ti_sci_intr_irq_domain_driver);
+
+MODULE_AUTHOR("Lokesh Vutla <lokeshvutla@ticom>");
+MODULE_DESCRIPTION("K3 Interrupt Router driver over TI SCI protocol");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index b80cb6a..6a0365b 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -59,30 +59,6 @@
 	  blocks found on many Atmel processors.  This facilitates using
 	  these blocks by different drivers despite processor differences.
 
-config ATMEL_TCB_CLKSRC
-	bool "TC Block Clocksource"
-	depends on ATMEL_TCLIB
-	default y
-	help
-	  Select this to get a high precision clocksource based on a
-	  TC block with a 5+ MHz base clock rate.  Two timer channels
-	  are combined to make a single 32-bit timer.
-
-	  When GENERIC_CLOCKEVENTS is defined, the third timer channel
-	  may be used as a clock event device supporting oneshot mode
-	  (delays of up to two seconds) based on the 32 KiHz clock.
-
-config ATMEL_TCB_CLKSRC_BLOCK
-	int
-	depends on ATMEL_TCB_CLKSRC
-	default 0
-	range 0 1
-	help
-	  Some chips provide more than one TC block, so you have the
-	  choice of which one to use for the clock framework.  The other
-	  TC can be used for other purposes, such as PWM generation and
-	  interval timing.
-
 config DUMMY_IRQ
 	tristate "Dummy IRQ handler"
 	default n
diff --git a/drivers/misc/atmel_tclib.c b/drivers/misc/atmel_tclib.c
index ac24a4b..2c6850e 100644
--- a/drivers/misc/atmel_tclib.c
+++ b/drivers/misc/atmel_tclib.c
@@ -1,4 +1,3 @@
-#include <linux/atmel_tc.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/init.h>
@@ -10,6 +9,7 @@
 #include <linux/slab.h>
 #include <linux/export.h>
 #include <linux/of.h>
+#include <soc/at91/atmel_tcb.h>
 
 /*
  * This is a thin library to solve the problem of how to portably allocate
@@ -111,6 +111,9 @@
 	struct resource	*r;
 	unsigned int	i;
 
+	if (of_get_child_count(pdev->dev.of_node))
+		return -EBUSY;
+
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
 		return -EINVAL;
diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c
index 0d0f837..7da1fdb 100644
--- a/drivers/pwm/pwm-atmel-tcb.c
+++ b/drivers/pwm/pwm-atmel-tcb.c
@@ -17,10 +17,10 @@
 #include <linux/ioport.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
-#include <linux/atmel_tc.h>
 #include <linux/pwm.h>
 #include <linux/of_device.h>
 #include <linux/slab.h>
+#include <soc/at91/atmel_tcb.h>
 
 #define NPWM	6
 
diff --git a/drivers/soc/fsl/qe/gpio.c b/drivers/soc/fsl/qe/gpio.c
index 819bed0..51b3a47 100644
--- a/drivers/soc/fsl/qe/gpio.c
+++ b/drivers/soc/fsl/qe/gpio.c
@@ -179,8 +179,10 @@
 	if (err < 0)
 		goto err0;
 	gc = gpio_to_chip(err);
-	if (WARN_ON(!gc))
+	if (WARN_ON(!gc)) {
+		err = -ENODEV;
 		goto err0;
+	}
 
 	if (!of_device_is_compatible(gc->of_node, "fsl,mpc8323-qe-pario-bank")) {
 		pr_debug("%s: tried to get a non-qe pin\n", __func__);
diff --git a/drivers/soc/ixp4xx/ixp4xx-qmgr.c b/drivers/soc/ixp4xx/ixp4xx-qmgr.c
index 13a8a13..bb90670 100644
--- a/drivers/soc/ixp4xx/ixp4xx-qmgr.c
+++ b/drivers/soc/ixp4xx/ixp4xx-qmgr.c
@@ -385,8 +385,8 @@
 	if (!res)
 		return -ENODEV;
 	qmgr_regs = devm_ioremap_resource(dev, res);
-	if (!qmgr_regs)
-		return -ENOMEM;
+	if (IS_ERR(qmgr_regs))
+		return PTR_ERR(qmgr_regs);
 
 	irq1 = platform_get_irq(pdev, 0);
 	if (irq1 <= 0)
diff --git a/drivers/soc/ti/Kconfig b/drivers/soc/ti/Kconfig
index 57960e9..dbd6c60 100644
--- a/drivers/soc/ti/Kconfig
+++ b/drivers/soc/ti/Kconfig
@@ -74,4 +74,10 @@
 	  called ti_sci_pm_domains. Note this is needed early in boot before
 	  rootfs may be available.
 
+config TI_SCI_INTA_MSI_DOMAIN
+	bool
+	select GENERIC_MSI_IRQ_DOMAIN
+	help
+	  Driver to enable Interrupt Aggregator specific MSI Domain.
+
 endif # SOC_TI
diff --git a/drivers/soc/ti/Makefile b/drivers/soc/ti/Makefile
index a22edc0..b3868d3 100644
--- a/drivers/soc/ti/Makefile
+++ b/drivers/soc/ti/Makefile
@@ -8,3 +8,4 @@
 obj-$(CONFIG_AMX3_PM)			+= pm33xx.o
 obj-$(CONFIG_WKUP_M3_IPC)		+= wkup_m3_ipc.o
 obj-$(CONFIG_TI_SCI_PM_DOMAINS)		+= ti_sci_pm_domains.o
+obj-$(CONFIG_TI_SCI_INTA_MSI_DOMAIN)	+= ti_sci_inta_msi.o
diff --git a/drivers/soc/ti/ti_sci_inta_msi.c b/drivers/soc/ti/ti_sci_inta_msi.c
new file mode 100644
index 0000000..0eb9462
--- /dev/null
+++ b/drivers/soc/ti/ti_sci_inta_msi.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Texas Instruments' K3 Interrupt Aggregator MSI bus
+ *
+ * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
+ *	Lokesh Vutla <lokeshvutla@ti.com>
+ */
+
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/msi.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/soc/ti/ti_sci_inta_msi.h>
+#include <linux/soc/ti/ti_sci_protocol.h>
+
+static void ti_sci_inta_msi_write_msg(struct irq_data *data,
+				      struct msi_msg *msg)
+{
+	/* Nothing to do */
+}
+
+static void ti_sci_inta_msi_compose_msi_msg(struct irq_data *data,
+					    struct msi_msg *msg)
+{
+	/* Nothing to do */
+}
+
+static void ti_sci_inta_msi_update_chip_ops(struct msi_domain_info *info)
+{
+	struct irq_chip *chip = info->chip;
+
+	if (WARN_ON(!chip))
+		return;
+
+	chip->irq_request_resources = irq_chip_request_resources_parent;
+	chip->irq_release_resources = irq_chip_release_resources_parent;
+	chip->irq_compose_msi_msg = ti_sci_inta_msi_compose_msi_msg;
+	chip->irq_write_msi_msg = ti_sci_inta_msi_write_msg;
+	chip->irq_set_type = irq_chip_set_type_parent;
+	chip->irq_unmask = irq_chip_unmask_parent;
+	chip->irq_mask = irq_chip_mask_parent;
+	chip->irq_ack = irq_chip_ack_parent;
+}
+
+struct irq_domain *ti_sci_inta_msi_create_irq_domain(struct fwnode_handle *fwnode,
+						     struct msi_domain_info *info,
+						     struct irq_domain *parent)
+{
+	struct irq_domain *domain;
+
+	ti_sci_inta_msi_update_chip_ops(info);
+
+	domain = msi_create_irq_domain(fwnode, info, parent);
+	if (domain)
+		irq_domain_update_bus_token(domain, DOMAIN_BUS_TI_SCI_INTA_MSI);
+
+	return domain;
+}
+EXPORT_SYMBOL_GPL(ti_sci_inta_msi_create_irq_domain);
+
+static void ti_sci_inta_msi_free_descs(struct device *dev)
+{
+	struct msi_desc *desc, *tmp;
+
+	list_for_each_entry_safe(desc, tmp, dev_to_msi_list(dev), list) {
+		list_del(&desc->list);
+		free_msi_entry(desc);
+	}
+}
+
+static int ti_sci_inta_msi_alloc_descs(struct device *dev,
+				       struct ti_sci_resource *res)
+{
+	struct msi_desc *msi_desc;
+	int set, i, count = 0;
+
+	for (set = 0; set < res->sets; set++) {
+		for (i = 0; i < res->desc[set].num; i++) {
+			msi_desc = alloc_msi_entry(dev, 1, NULL);
+			if (!msi_desc) {
+				ti_sci_inta_msi_free_descs(dev);
+				return -ENOMEM;
+			}
+
+			msi_desc->inta.dev_index = res->desc[set].start + i;
+			INIT_LIST_HEAD(&msi_desc->list);
+			list_add_tail(&msi_desc->list, dev_to_msi_list(dev));
+			count++;
+		}
+	}
+
+	return count;
+}
+
+int ti_sci_inta_msi_domain_alloc_irqs(struct device *dev,
+				      struct ti_sci_resource *res)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct irq_domain *msi_domain;
+	int ret, nvec;
+
+	msi_domain = dev_get_msi_domain(dev);
+	if (!msi_domain)
+		return -EINVAL;
+
+	if (pdev->id < 0)
+		return -ENODEV;
+
+	nvec = ti_sci_inta_msi_alloc_descs(dev, res);
+	if (nvec <= 0)
+		return nvec;
+
+	ret = msi_domain_alloc_irqs(msi_domain, dev, nvec);
+	if (ret) {
+		dev_err(dev, "Failed to allocate IRQs %d\n", ret);
+		goto cleanup;
+	}
+
+	return 0;
+
+cleanup:
+	ti_sci_inta_msi_free_descs(&pdev->dev);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ti_sci_inta_msi_domain_alloc_irqs);
+
+void ti_sci_inta_msi_domain_free_irqs(struct device *dev)
+{
+	msi_domain_free_irqs(dev->msi_domain, dev);
+	ti_sci_inta_msi_free_descs(dev);
+}
+EXPORT_SYMBOL_GPL(ti_sci_inta_msi_domain_free_irqs);
+
+unsigned int ti_sci_inta_msi_get_virq(struct device *dev, u32 dev_index)
+{
+	struct msi_desc *desc;
+
+	for_each_msi_entry(desc, dev)
+		if (desc->inta.dev_index == dev_index)
+			return desc->irq;
+
+	return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(ti_sci_inta_msi_get_virq);
diff --git a/drivers/tty/hvc/hvc_riscv_sbi.c b/drivers/tty/hvc/hvc_riscv_sbi.c
index 75155bd..31f53fa 100644
--- a/drivers/tty/hvc/hvc_riscv_sbi.c
+++ b/drivers/tty/hvc/hvc_riscv_sbi.c
@@ -53,7 +53,6 @@
 static int __init hvc_sbi_console_init(void)
 {
 	hvc_instantiate(0, 0, &hvc_sbi_ops);
-	add_preferred_console("hvc", 0, NULL);
 
 	return 0;
 }
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 9e529cc..9f39f0c 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -477,8 +477,12 @@
 		 * If the UEFI memory map covers the efifb region, we may only
 		 * remap it using the attributes the memory map prescribes.
 		 */
-		mem_flags |= EFI_MEMORY_WT | EFI_MEMORY_WB;
-		mem_flags &= md.attribute;
+		md.attribute &= EFI_MEMORY_UC | EFI_MEMORY_WC |
+				EFI_MEMORY_WT | EFI_MEMORY_WB;
+		if (md.attribute) {
+			mem_flags |= EFI_MEMORY_WT | EFI_MEMORY_WB;
+			mem_flags &= md.attribute;
+		}
 	}
 	if (mem_flags & EFI_MEMORY_WC)
 		info->screen_base = ioremap_wc(efifb_fix.smem_start,
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 6a69f11..45e74da 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -380,6 +380,8 @@
 				atomic_read(&server->in_send),
 				atomic_read(&server->num_waiters));
 #endif
+			/* dump session id helpful for use with network trace */
+			seq_printf(m, " SessionId: 0x%llx", ses->Suid);
 			if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)
 				seq_puts(m, " encrypted");
 			if (ses->sign)
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index b1a5fcf..f5fcd63 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -878,6 +878,9 @@
 
 static loff_t cifs_llseek(struct file *file, loff_t offset, int whence)
 {
+	struct cifsFileInfo *cfile = file->private_data;
+	struct cifs_tcon *tcon;
+
 	/*
 	 * whence == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
 	 * the cached file length
@@ -909,6 +912,12 @@
 		if (rc < 0)
 			return (loff_t)rc;
 	}
+	if (cfile && cfile->tlink) {
+		tcon = tlink_tcon(cfile->tlink);
+		if (tcon->ses->server->ops->llseek)
+			return tcon->ses->server->ops->llseek(file, tcon,
+							      offset, whence);
+	}
 	return generic_file_llseek(file, offset, whence);
 }
 
@@ -1070,11 +1079,6 @@
 
 	cifs_dbg(FYI, "copychunk range\n");
 
-	if (src_inode == target_inode) {
-		rc = -EINVAL;
-		goto out;
-	}
-
 	if (!src_file->private_data || !dst_file->private_data) {
 		rc = -EBADF;
 		cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 33c251b..334ff5f 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -497,6 +497,8 @@
 	/* version specific fiemap implementation */
 	int (*fiemap)(struct cifs_tcon *tcon, struct cifsFileInfo *,
 		      struct fiemap_extent_info *, u64, u64);
+	/* version specific llseek implementation */
+	loff_t (*llseek)(struct file *, struct cifs_tcon *, loff_t, int);
 };
 
 struct smb_version_values {
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 084756cf..8c4121d 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -528,6 +528,21 @@
 	/* do not want to be sending data on a socket we are freeing */
 	cifs_dbg(FYI, "%s: tearing down socket\n", __func__);
 	mutex_lock(&server->srv_mutex);
+	if (server->ssocket) {
+		cifs_dbg(FYI, "State: 0x%x Flags: 0x%lx\n",
+			 server->ssocket->state, server->ssocket->flags);
+		kernel_sock_shutdown(server->ssocket, SHUT_WR);
+		cifs_dbg(FYI, "Post shutdown state: 0x%x Flags: 0x%lx\n",
+			 server->ssocket->state, server->ssocket->flags);
+		sock_release(server->ssocket);
+		server->ssocket = NULL;
+	}
+	server->sequence_number = 0;
+	server->session_estab = false;
+	kfree(server->session_key.response);
+	server->session_key.response = NULL;
+	server->session_key.len = 0;
+	server->lstrp = jiffies;
 
 	/* mark submitted MIDs for retry and issue callback */
 	INIT_LIST_HEAD(&retry_list);
@@ -540,6 +555,7 @@
 		list_move(&mid_entry->qhead, &retry_list);
 	}
 	spin_unlock(&GlobalMid_Lock);
+	mutex_unlock(&server->srv_mutex);
 
 	cifs_dbg(FYI, "%s: issuing mid callbacks\n", __func__);
 	list_for_each_safe(tmp, tmp2, &retry_list) {
@@ -548,24 +564,11 @@
 		mid_entry->callback(mid_entry);
 	}
 
-	if (server->ssocket) {
-		cifs_dbg(FYI, "State: 0x%x Flags: 0x%lx\n",
-			 server->ssocket->state, server->ssocket->flags);
-		kernel_sock_shutdown(server->ssocket, SHUT_WR);
-		cifs_dbg(FYI, "Post shutdown state: 0x%x Flags: 0x%lx\n",
-			 server->ssocket->state, server->ssocket->flags);
-		sock_release(server->ssocket);
-		server->ssocket = NULL;
-	} else if (cifs_rdma_enabled(server))
+	if (cifs_rdma_enabled(server)) {
+		mutex_lock(&server->srv_mutex);
 		smbd_destroy(server);
-	server->sequence_number = 0;
-	server->session_estab = false;
-	kfree(server->session_key.response);
-	server->session_key.response = NULL;
-	server->session_key.len = 0;
-	server->lstrp = jiffies;
-
-	mutex_unlock(&server->srv_mutex);
+		mutex_unlock(&server->srv_mutex);
+	}
 
 	do {
 		try_to_freeze();
@@ -2443,6 +2446,10 @@
 {
 	__be16 port, *sport;
 
+	/* SMBDirect manages its own ports, don't match it here */
+	if (server->rdma)
+		return true;
+
 	switch (addr->sa_family) {
 	case AF_INET:
 		sport = &((struct sockaddr_in *) &server->dstaddr)->sin_port;
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index a930c89..e921e65 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  SMB2 version specific operations
  *
@@ -282,7 +283,7 @@
 	__u64 wire_mid = le64_to_cpu(shdr->MessageId);
 
 	if (shdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) {
-		cifs_dbg(VFS, "encrypted frame parsing not supported yet");
+		cifs_dbg(VFS, "Encrypted frame parsing not supported yet\n");
 		return NULL;
 	}
 
@@ -324,6 +325,7 @@
 smb2_negotiate(const unsigned int xid, struct cifs_ses *ses)
 {
 	int rc;
+
 	ses->server->CurrentMid = 0;
 	rc = SMB2_negotiate(xid, ses);
 	/* BB we probably don't need to retry with modern servers */
@@ -789,8 +791,6 @@
 		SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
 	else
 		close_shroot(&tcon->crfid);
-
-	return;
 }
 
 static void
@@ -818,7 +818,6 @@
 	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
 			FS_DEVICE_INFORMATION);
 	SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
-	return;
 }
 
 static int
@@ -906,9 +905,8 @@
 		value = &src->ea_data[src->ea_name_length + 1];
 		value_len = (size_t)le16_to_cpu(src->ea_value_length);
 
-		if (name_len == 0) {
+		if (name_len == 0)
 			break;
-		}
 
 		if (src_size < 8 + name_len + 1 + value_len) {
 			cifs_dbg(FYI, "EA entry goes beyond length of list\n");
@@ -1161,6 +1159,7 @@
 smb2_clear_stats(struct cifs_tcon *tcon)
 {
 	int i;
+
 	for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
 		atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
 		atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
@@ -1529,7 +1528,7 @@
 	if (pcchunk == NULL)
 		return -ENOMEM;
 
-	cifs_dbg(FYI, "in smb2_copychunk_range - about to call request res key\n");
+	cifs_dbg(FYI, "%s: about to call request res key\n", __func__);
 	/* Request a key from the server to identify the source of the copy */
 	rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink),
 				srcfile->fid.persistent_fid,
@@ -1649,6 +1648,7 @@
 smb2_read_data_offset(char *buf)
 {
 	struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
+
 	return rsp->DataOffset;
 }
 
@@ -1777,7 +1777,7 @@
 	dup_ext_buf.SourceFileOffset = cpu_to_le64(src_off);
 	dup_ext_buf.TargetFileOffset = cpu_to_le64(dest_off);
 	dup_ext_buf.ByteCount = cpu_to_le64(len);
-	cifs_dbg(FYI, "duplicate extents: src off %lld dst off %lld len %lld",
+	cifs_dbg(FYI, "Duplicate extents: src off %lld dst off %lld len %lld\n",
 		src_off, dest_off, len);
 
 	rc = smb2_set_file_size(xid, tcon, trgtfile, dest_off + len, false);
@@ -1794,7 +1794,7 @@
 			&ret_data_len);
 
 	if (ret_data_len > 0)
-		cifs_dbg(FYI, "non-zero response length in duplicate extents");
+		cifs_dbg(FYI, "Non-zero response length in duplicate extents\n");
 
 duplicate_extents_out:
 	return rc;
@@ -1983,9 +1983,9 @@
 }
 
 /*
-* If we negotiate SMB2 protocol and get STATUS_PENDING - update
-* the number of credits and return true. Otherwise - return false.
-*/
+ * If we negotiate SMB2 protocol and get STATUS_PENDING - update
+ * the number of credits and return true. Otherwise - return false.
+ */
 static bool
 smb2_is_status_pending(char *buf, struct TCP_Server_Info *server)
 {
@@ -2306,7 +2306,7 @@
 	struct get_dfs_referral_rsp *dfs_rsp = NULL;
 	u32 dfs_req_size = 0, dfs_rsp_size = 0;
 
-	cifs_dbg(FYI, "smb2_get_dfs_refer path <%s>\n", search_name);
+	cifs_dbg(FYI, "%s: path: %s\n", __func__, search_name);
 
 	/*
 	 * Try to use the IPC tcon, otherwise just use any
@@ -2360,7 +2360,7 @@
 
 	if (rc) {
 		if ((rc != -ENOENT) && (rc != -EOPNOTSUPP))
-			cifs_dbg(VFS, "ioctl error in smb2_get_dfs_refer rc=%d\n", rc);
+			cifs_dbg(VFS, "ioctl error in %s rc=%d\n", __func__, rc);
 		goto out;
 	}
 
@@ -2369,7 +2369,7 @@
 				 nls_codepage, remap, search_name,
 				 true /* is_unicode */);
 	if (rc) {
-		cifs_dbg(VFS, "parse error in smb2_get_dfs_refer rc=%d\n", rc);
+		cifs_dbg(VFS, "parse error in %s rc=%d\n", __func__, rc);
 		goto out;
 	}
 
@@ -2745,7 +2745,7 @@
 	inode = d_inode(cfile->dentry);
 	cifsi = CIFS_I(inode);
 
-        trace_smb3_zero_enter(xid, cfile->fid.persistent_fid, tcon->tid,
+	trace_smb3_zero_enter(xid, cfile->fid.persistent_fid, tcon->tid,
 			      ses->Suid, offset, len);
 
 
@@ -2759,7 +2759,7 @@
 			return rc;
 		}
 
-	cifs_dbg(FYI, "offset %lld len %lld", offset, len);
+	cifs_dbg(FYI, "Offset %lld len %lld\n", offset, len);
 
 	fsctl_buf.FileOffset = cpu_to_le64(offset);
 	fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len);
@@ -2816,7 +2816,7 @@
 		return rc;
 	}
 
-	cifs_dbg(FYI, "offset %lld len %lld", offset, len);
+	cifs_dbg(FYI, "Offset %lld len %lld\n", offset, len);
 
 	fsctl_buf.FileOffset = cpu_to_le64(offset);
 	fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len);
@@ -2922,6 +2922,90 @@
 	return rc;
 }
 
+static loff_t smb3_llseek(struct file *file, struct cifs_tcon *tcon, loff_t offset, int whence)
+{
+	struct cifsFileInfo *wrcfile, *cfile = file->private_data;
+	struct cifsInodeInfo *cifsi;
+	struct inode *inode;
+	int rc = 0;
+	struct file_allocated_range_buffer in_data, *out_data = NULL;
+	u32 out_data_len;
+	unsigned int xid;
+
+	if (whence != SEEK_HOLE && whence != SEEK_DATA)
+		return generic_file_llseek(file, offset, whence);
+
+	inode = d_inode(cfile->dentry);
+	cifsi = CIFS_I(inode);
+
+	if (offset < 0 || offset >= i_size_read(inode))
+		return -ENXIO;
+
+	xid = get_xid();
+	/*
+	 * We need to be sure that all dirty pages are written as they
+	 * might fill holes on the server.
+	 * Note that we also MUST flush any written pages since at least
+	 * some servers (Windows2016) will not reflect recent writes in
+	 * QUERY_ALLOCATED_RANGES until SMB2_flush is called.
+	 */
+	wrcfile = find_writable_file(cifsi, false);
+	if (wrcfile) {
+		filemap_write_and_wait(inode->i_mapping);
+		smb2_flush_file(xid, tcon, &wrcfile->fid);
+		cifsFileInfo_put(wrcfile);
+	}
+
+	if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE)) {
+		if (whence == SEEK_HOLE)
+			offset = i_size_read(inode);
+		goto lseek_exit;
+	}
+
+	in_data.file_offset = cpu_to_le64(offset);
+	in_data.length = cpu_to_le64(i_size_read(inode));
+
+	rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
+			cfile->fid.volatile_fid,
+			FSCTL_QUERY_ALLOCATED_RANGES, true,
+			(char *)&in_data, sizeof(in_data),
+			sizeof(struct file_allocated_range_buffer),
+			(char **)&out_data, &out_data_len);
+	if (rc == -E2BIG)
+		rc = 0;
+	if (rc)
+		goto lseek_exit;
+
+	if (whence == SEEK_HOLE && out_data_len == 0)
+		goto lseek_exit;
+
+	if (whence == SEEK_DATA && out_data_len == 0) {
+		rc = -ENXIO;
+		goto lseek_exit;
+	}
+
+	if (out_data_len < sizeof(struct file_allocated_range_buffer)) {
+		rc = -EINVAL;
+		goto lseek_exit;
+	}
+	if (whence == SEEK_DATA) {
+		offset = le64_to_cpu(out_data->file_offset);
+		goto lseek_exit;
+	}
+	if (offset < le64_to_cpu(out_data->file_offset))
+		goto lseek_exit;
+
+	offset = le64_to_cpu(out_data->file_offset) + le64_to_cpu(out_data->length);
+
+ lseek_exit:
+	free_xid(xid);
+	kfree(out_data);
+	if (!rc)
+		return vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
+	else
+		return rc;
+}
+
 static int smb3_fiemap(struct cifs_tcon *tcon,
 		       struct cifsFileInfo *cfile,
 		       struct fiemap_extent_info *fei, u64 start, u64 len)
@@ -3384,7 +3468,7 @@
 
 	req = aead_request_alloc(tfm, GFP_KERNEL);
 	if (!req) {
-		cifs_dbg(VFS, "%s: Failed to alloc aead request", __func__);
+		cifs_dbg(VFS, "%s: Failed to alloc aead request\n", __func__);
 		return -ENOMEM;
 	}
 
@@ -3395,7 +3479,7 @@
 
 	sg = init_sg(num_rqst, rqst, sign);
 	if (!sg) {
-		cifs_dbg(VFS, "%s: Failed to init sg", __func__);
+		cifs_dbg(VFS, "%s: Failed to init sg\n", __func__);
 		rc = -ENOMEM;
 		goto free_req;
 	}
@@ -3403,7 +3487,7 @@
 	iv_len = crypto_aead_ivsize(tfm);
 	iv = kzalloc(iv_len, GFP_KERNEL);
 	if (!iv) {
-		cifs_dbg(VFS, "%s: Failed to alloc IV", __func__);
+		cifs_dbg(VFS, "%s: Failed to alloc iv\n", __func__);
 		rc = -ENOMEM;
 		goto free_sg;
 	}
@@ -3511,7 +3595,7 @@
 	fill_transform_hdr(tr_hdr, orig_len, old_rq);
 
 	rc = crypt_message(server, num_rqst, new_rq, 1);
-	cifs_dbg(FYI, "encrypt message returned %d", rc);
+	cifs_dbg(FYI, "Encrypt message returned %d\n", rc);
 	if (rc)
 		goto err_free;
 
@@ -3552,7 +3636,7 @@
 	rqst.rq_tailsz = (page_data_size % PAGE_SIZE) ? : PAGE_SIZE;
 
 	rc = crypt_message(server, 1, &rqst, 0);
-	cifs_dbg(FYI, "decrypt message returned %d\n", rc);
+	cifs_dbg(FYI, "Decrypt message returned %d\n", rc);
 
 	if (rc)
 		return rc;
@@ -4166,6 +4250,7 @@
 	.ioctl_query_info = smb2_ioctl_query_info,
 	.make_node = smb2_make_node,
 	.fiemap = smb3_fiemap,
+	.llseek = smb3_llseek,
 };
 
 struct smb_version_operations smb21_operations = {
@@ -4266,6 +4351,7 @@
 	.ioctl_query_info = smb2_ioctl_query_info,
 	.make_node = smb2_make_node,
 	.fiemap = smb3_fiemap,
+	.llseek = smb3_llseek,
 };
 
 struct smb_version_operations smb30_operations = {
@@ -4375,6 +4461,7 @@
 	.ioctl_query_info = smb2_ioctl_query_info,
 	.make_node = smb2_make_node,
 	.fiemap = smb3_fiemap,
+	.llseek = smb3_llseek,
 };
 
 struct smb_version_operations smb311_operations = {
@@ -4485,6 +4572,7 @@
 	.ioctl_query_info = smb2_ioctl_query_info,
 	.make_node = smb2_make_node,
 	.fiemap = smb3_fiemap,
+	.llseek = smb3_llseek,
 };
 
 struct smb_version_values smb20_values = {
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 29f011d..710ceb8 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2538,11 +2538,25 @@
 	struct kvec *iov = rqst->rq_iov;
 	unsigned int total_len;
 	int rc;
+	char *in_data_buf;
 
 	rc = smb2_plain_req_init(SMB2_IOCTL, tcon, (void **) &req, &total_len);
 	if (rc)
 		return rc;
 
+	if (indatalen) {
+		/*
+		 * indatalen is usually small at a couple of bytes max, so
+		 * just allocate through generic pool
+		 */
+		in_data_buf = kmalloc(indatalen, GFP_NOFS);
+		if (!in_data_buf) {
+			cifs_small_buf_release(req);
+			return -ENOMEM;
+		}
+		memcpy(in_data_buf, in_data, indatalen);
+	}
+
 	req->CtlCode = cpu_to_le32(opcode);
 	req->PersistentFileId = persistent_fid;
 	req->VolatileFileId = volatile_fid;
@@ -2563,7 +2577,7 @@
 		       cpu_to_le32(offsetof(struct smb2_ioctl_req, Buffer));
 		rqst->rq_nvec = 2;
 		iov[0].iov_len = total_len - 1;
-		iov[1].iov_base = in_data;
+		iov[1].iov_base = in_data_buf;
 		iov[1].iov_len = indatalen;
 	} else {
 		rqst->rq_nvec = 1;
@@ -2605,8 +2619,11 @@
 void
 SMB2_ioctl_free(struct smb_rqst *rqst)
 {
-	if (rqst && rqst->rq_iov)
+	if (rqst && rqst->rq_iov) {
 		cifs_small_buf_release(rqst->rq_iov[0].iov_base); /* request */
+		if (rqst->rq_iov[1].iov_len)
+			kfree(rqst->rq_iov[1].iov_base);
+	}
 }
 
 
diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index 251ef12..caac37b 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -903,7 +903,7 @@
 	request->sge[0].addr = ib_dma_map_single(info->id->device,
 						 (void *)packet,
 						 header_length,
-						 DMA_BIDIRECTIONAL);
+						 DMA_TO_DEVICE);
 	if (ib_dma_mapping_error(info->id->device, request->sge[0].addr)) {
 		mempool_free(request, info->request_mempool);
 		rc = -EIO;
@@ -1005,7 +1005,7 @@
 	for_each_sg(sgl, sg, num_sgs, i) {
 		request->sge[i+1].addr =
 			ib_dma_map_page(info->id->device, sg_page(sg),
-			       sg->offset, sg->length, DMA_BIDIRECTIONAL);
+			       sg->offset, sg->length, DMA_TO_DEVICE);
 		if (ib_dma_mapping_error(
 				info->id->device, request->sge[i+1].addr)) {
 			rc = -EIO;
@@ -2110,8 +2110,10 @@
 		goto done;
 	}
 
-	rqst_idx = 0;
+	log_write(INFO, "num_rqst=%d total length=%u\n",
+			num_rqst, remaining_data_length);
 
+	rqst_idx = 0;
 next_rqst:
 	rqst = &rqst_array[rqst_idx];
 	iov = rqst->rq_iov;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 9a16ff4..60661b3 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -33,7 +33,7 @@
 #include <linux/uaccess.h>
 #include <asm/processor.h>
 #include <linux/mempool.h>
-#include <linux/signal.h>
+#include <linux/sched/signal.h>
 #include "cifspdu.h"
 #include "cifsglob.h"
 #include "cifsproto.h"
diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c
index 968f163..8e83741 100644
--- a/fs/ext4/block_validity.c
+++ b/fs/ext4/block_validity.c
@@ -142,7 +142,8 @@
 	struct inode *inode;
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_map_blocks map;
-	u32 i = 0, err = 0, num, n;
+	u32 i = 0, num;
+	int err = 0, n;
 
 	if ((ino < EXT4_ROOT_INO) ||
 	    (ino > le32_to_cpu(sbi->s_es->s_inodes_count)))
@@ -276,6 +277,11 @@
 	__le32 *bref = p;
 	unsigned int blk;
 
+	if (ext4_has_feature_journal(inode->i_sb) &&
+	    (inode->i_ino ==
+	     le32_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_journal_inum)))
+		return 0;
+
 	while (bref < p+max) {
 		blk = le32_to_cpu(*bref++);
 		if (blk &&
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 0f89f51..f2c62e2 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1035,6 +1035,7 @@
 	__le32 border;
 	ext4_fsblk_t *ablocks = NULL; /* array of allocated blocks */
 	int err = 0;
+	size_t ext_size = 0;
 
 	/* make decision: where to split? */
 	/* FIXME: now decision is simplest: at current extent */
@@ -1126,6 +1127,10 @@
 		le16_add_cpu(&neh->eh_entries, m);
 	}
 
+	/* zero out unused area in the extent block */
+	ext_size = sizeof(struct ext4_extent_header) +
+		sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries);
+	memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size);
 	ext4_extent_block_csum_set(inode, neh);
 	set_buffer_uptodate(bh);
 	unlock_buffer(bh);
@@ -1205,6 +1210,11 @@
 				sizeof(struct ext4_extent_idx) * m);
 			le16_add_cpu(&neh->eh_entries, m);
 		}
+		/* zero out unused area in the extent block */
+		ext_size = sizeof(struct ext4_extent_header) +
+		   (sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries));
+		memset(bh->b_data + ext_size, 0,
+			inode->i_sb->s_blocksize - ext_size);
 		ext4_extent_block_csum_set(inode, neh);
 		set_buffer_uptodate(bh);
 		unlock_buffer(bh);
@@ -1270,6 +1280,7 @@
 	ext4_fsblk_t newblock, goal = 0;
 	struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
 	int err = 0;
+	size_t ext_size = 0;
 
 	/* Try to prepend new index to old one */
 	if (ext_depth(inode))
@@ -1295,9 +1306,11 @@
 		goto out;
 	}
 
+	ext_size = sizeof(EXT4_I(inode)->i_data);
 	/* move top-level index/leaf into new block */
-	memmove(bh->b_data, EXT4_I(inode)->i_data,
-		sizeof(EXT4_I(inode)->i_data));
+	memmove(bh->b_data, EXT4_I(inode)->i_data, ext_size);
+	/* zero out unused area in the extent block */
+	memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size);
 
 	/* set size of new block */
 	neh = ext_block_hdr(bh);
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 98ec11f..2c5baa5 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -264,6 +264,13 @@
 	}
 
 	ret = __generic_file_write_iter(iocb, from);
+	/*
+	 * Unaligned direct AIO must be the only IO in flight. Otherwise
+	 * overlapping aligned IO after unaligned might result in data
+	 * corruption.
+	 */
+	if (ret == -EIOCBQUEUED && unaligned_aio)
+		ext4_unwritten_wait(inode);
 	inode_unlock(inode);
 
 	if (ret > 0)
diff --git a/fs/ext4/fsmap.c b/fs/ext4/fsmap.c
index 4b99e2db..dbccf46 100644
--- a/fs/ext4/fsmap.c
+++ b/fs/ext4/fsmap.c
@@ -626,7 +626,7 @@
 {
 	struct ext4_fsmap dkeys[2];	/* per-dev keys */
 	struct ext4_getfsmap_dev handlers[EXT4_GETFSMAP_DEVS];
-	struct ext4_getfsmap_info info = {0};
+	struct ext4_getfsmap_info info = { NULL };
 	int i;
 	int error = 0;
 
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 7e85ecf..e486e49 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -608,7 +608,7 @@
 static int ext4_ioc_getfsmap(struct super_block *sb,
 			     struct fsmap_head __user *arg)
 {
-	struct getfsmap_info info = {0};
+	struct getfsmap_info info = { NULL };
 	struct ext4_fsmap_head xhead = {0};
 	struct fsmap_head head;
 	bool aborted = false;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 6d50f53..cd01c4a 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -872,12 +872,15 @@
 {
 	struct dx_root_info *info;
 	int i;
+	unsigned int indirect_levels;
 
 	if (frames[0].bh == NULL)
 		return;
 
 	info = &((struct dx_root *)frames[0].bh->b_data)->info;
-	for (i = 0; i <= info->indirect_levels; i++) {
+	/* save local copy, "info" may be freed after brelse() */
+	indirect_levels = info->indirect_levels;
+	for (i = 0; i <= indirect_levels; i++) {
 		if (frames[i].bh == NULL)
 			break;
 		brelse(frames[i].bh);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index f71b525..4079605 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -699,7 +699,7 @@
 			jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
 		save_error_info(sb, function, line);
 	}
-	if (test_opt(sb, ERRORS_PANIC)) {
+	if (test_opt(sb, ERRORS_PANIC) && !system_going_down()) {
 		if (EXT4_SB(sb)->s_journal &&
 		  !(EXT4_SB(sb)->s_journal->j_flags & JBD2_REC_ERR))
 			return;
@@ -4661,7 +4661,7 @@
 
 #ifdef CONFIG_QUOTA
 	for (i = 0; i < EXT4_MAXQUOTAS; i++)
-		kfree(sbi->s_qf_names[i]);
+		kfree(get_qf_name(sb, sbi, i));
 #endif
 	ext4_blkdev_remove(sbi);
 	brelse(bh);
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 37e16d9..43df0c9 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -2375,22 +2375,19 @@
 static atomic_t nr_journal_heads = ATOMIC_INIT(0);
 #endif
 
-static int jbd2_journal_init_journal_head_cache(void)
+static int __init jbd2_journal_init_journal_head_cache(void)
 {
-	int retval;
-
-	J_ASSERT(jbd2_journal_head_cache == NULL);
+	J_ASSERT(!jbd2_journal_head_cache);
 	jbd2_journal_head_cache = kmem_cache_create("jbd2_journal_head",
 				sizeof(struct journal_head),
 				0,		/* offset */
 				SLAB_TEMPORARY | SLAB_TYPESAFE_BY_RCU,
 				NULL);		/* ctor */
-	retval = 0;
 	if (!jbd2_journal_head_cache) {
-		retval = -ENOMEM;
 		printk(KERN_EMERG "JBD2: no memory for journal_head cache\n");
+		return -ENOMEM;
 	}
-	return retval;
+	return 0;
 }
 
 static void jbd2_journal_destroy_journal_head_cache(void)
@@ -2636,28 +2633,38 @@
 
 struct kmem_cache *jbd2_handle_cache, *jbd2_inode_cache;
 
-static int __init jbd2_journal_init_handle_cache(void)
+static int __init jbd2_journal_init_inode_cache(void)
 {
-	jbd2_handle_cache = KMEM_CACHE(jbd2_journal_handle, SLAB_TEMPORARY);
-	if (jbd2_handle_cache == NULL) {
-		printk(KERN_EMERG "JBD2: failed to create handle cache\n");
-		return -ENOMEM;
-	}
+	J_ASSERT(!jbd2_inode_cache);
 	jbd2_inode_cache = KMEM_CACHE(jbd2_inode, 0);
-	if (jbd2_inode_cache == NULL) {
-		printk(KERN_EMERG "JBD2: failed to create inode cache\n");
-		kmem_cache_destroy(jbd2_handle_cache);
+	if (!jbd2_inode_cache) {
+		pr_emerg("JBD2: failed to create inode cache\n");
 		return -ENOMEM;
 	}
 	return 0;
 }
 
+static int __init jbd2_journal_init_handle_cache(void)
+{
+	J_ASSERT(!jbd2_handle_cache);
+	jbd2_handle_cache = KMEM_CACHE(jbd2_journal_handle, SLAB_TEMPORARY);
+	if (!jbd2_handle_cache) {
+		printk(KERN_EMERG "JBD2: failed to create handle cache\n");
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+static void jbd2_journal_destroy_inode_cache(void)
+{
+	kmem_cache_destroy(jbd2_inode_cache);
+	jbd2_inode_cache = NULL;
+}
+
 static void jbd2_journal_destroy_handle_cache(void)
 {
 	kmem_cache_destroy(jbd2_handle_cache);
 	jbd2_handle_cache = NULL;
-	kmem_cache_destroy(jbd2_inode_cache);
-	jbd2_inode_cache = NULL;
 }
 
 /*
@@ -2668,21 +2675,27 @@
 {
 	int ret;
 
-	ret = jbd2_journal_init_revoke_caches();
+	ret = jbd2_journal_init_revoke_record_cache();
+	if (ret == 0)
+		ret = jbd2_journal_init_revoke_table_cache();
 	if (ret == 0)
 		ret = jbd2_journal_init_journal_head_cache();
 	if (ret == 0)
 		ret = jbd2_journal_init_handle_cache();
 	if (ret == 0)
+		ret = jbd2_journal_init_inode_cache();
+	if (ret == 0)
 		ret = jbd2_journal_init_transaction_cache();
 	return ret;
 }
 
 static void jbd2_journal_destroy_caches(void)
 {
-	jbd2_journal_destroy_revoke_caches();
+	jbd2_journal_destroy_revoke_record_cache();
+	jbd2_journal_destroy_revoke_table_cache();
 	jbd2_journal_destroy_journal_head_cache();
 	jbd2_journal_destroy_handle_cache();
+	jbd2_journal_destroy_inode_cache();
 	jbd2_journal_destroy_transaction_cache();
 	jbd2_journal_destroy_slabs();
 }
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index a1143e5..69b9bc3 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -178,33 +178,41 @@
 	return NULL;
 }
 
-void jbd2_journal_destroy_revoke_caches(void)
+void jbd2_journal_destroy_revoke_record_cache(void)
 {
 	kmem_cache_destroy(jbd2_revoke_record_cache);
 	jbd2_revoke_record_cache = NULL;
+}
+
+void jbd2_journal_destroy_revoke_table_cache(void)
+{
 	kmem_cache_destroy(jbd2_revoke_table_cache);
 	jbd2_revoke_table_cache = NULL;
 }
 
-int __init jbd2_journal_init_revoke_caches(void)
+int __init jbd2_journal_init_revoke_record_cache(void)
 {
 	J_ASSERT(!jbd2_revoke_record_cache);
-	J_ASSERT(!jbd2_revoke_table_cache);
-
 	jbd2_revoke_record_cache = KMEM_CACHE(jbd2_revoke_record_s,
 					SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY);
-	if (!jbd2_revoke_record_cache)
-		goto record_cache_failure;
 
+	if (!jbd2_revoke_record_cache) {
+		pr_emerg("JBD2: failed to create revoke_record cache\n");
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+int __init jbd2_journal_init_revoke_table_cache(void)
+{
+	J_ASSERT(!jbd2_revoke_table_cache);
 	jbd2_revoke_table_cache = KMEM_CACHE(jbd2_revoke_table_s,
 					     SLAB_TEMPORARY);
-	if (!jbd2_revoke_table_cache)
-		goto table_cache_failure;
-	return 0;
-table_cache_failure:
-	jbd2_journal_destroy_revoke_caches();
-record_cache_failure:
+	if (!jbd2_revoke_table_cache) {
+		pr_emerg("JBD2: failed to create revoke_table cache\n");
 		return -ENOMEM;
+	}
+	return 0;
 }
 
 static struct jbd2_revoke_table_s *jbd2_journal_init_revoke_table(int hash_size)
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index f940d31..8ca4fdd 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -42,9 +42,11 @@
 					0,
 					SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY,
 					NULL);
-	if (transaction_cache)
-		return 0;
-	return -ENOMEM;
+	if (!transaction_cache) {
+		pr_emerg("JBD2: failed to create transaction cache\n");
+		return -ENOMEM;
+	}
+	return 0;
 }
 
 void jbd2_journal_destroy_transaction_cache(void)
diff --git a/fs/unicode/README.utf8data b/fs/unicode/README.utf8data
index 9307cf0..c737868 100644
--- a/fs/unicode/README.utf8data
+++ b/fs/unicode/README.utf8data
@@ -5,29 +5,15 @@
 
   http://www.unicode.org/Public/12.1.0/ucd/
 
-Note!
-
-The URL's listed below are not stable.  That's because Unicode 12.1.0
-has not been officially released yet; it is scheduled to be released
-on May 8, 2019.  We taking Unicode 12.1.0 a few weeks early because it
-contains a new Japanese character which is required in order to
-specify Japenese dates after May 1, 2019, when Crown Prince Naruhito
-ascends to the Chrysanthemum Throne.  (Isn't internationalization fun?
-The abdication of Emperor Akihito of Japan is requiring dozens of
-software packages to be updated with only a month's notice.  :-)
-
-We will update the URL's (and any needed changes to the checksums)
-after the final Unicode 12.1.0 is released.
-
 Individual source links:
 
-  https://www.unicode.org/Public/12.1.0/ucd/CaseFolding-12.1.0d2.txt
-  https://www.unicode.org/Public/12.1.0/ucd/DerivedAge-12.1.0d3.txt
-  https://www.unicode.org/Public/12.1.0/ucd/extracted/DerivedCombiningClass-12.1.0d2.txt
-  https://www.unicode.org/Public/12.1.0/ucd/DerivedCoreProperties-12.1.0d2.txt
-  https://www.unicode.org/Public/12.1.0/ucd/NormalizationCorrections-12.1.0d1.txt
-  https://www.unicode.org/Public/12.1.0/ucd/NormalizationTest-12.1.0d3.txt
-  https://www.unicode.org/Public/12.1.0/ucd/UnicodeData-12.1.0d2.txt
+  https://www.unicode.org/Public/12.1.0/ucd/CaseFolding.txt
+  https://www.unicode.org/Public/12.1.0/ucd/DerivedAge.txt
+  https://www.unicode.org/Public/12.1.0/ucd/extracted/DerivedCombiningClass.txt
+  https://www.unicode.org/Public/12.1.0/ucd/DerivedCoreProperties.txt
+  https://www.unicode.org/Public/12.1.0/ucd/NormalizationCorrections.txt
+  https://www.unicode.org/Public/12.1.0/ucd/NormalizationTest.txt
+  https://www.unicode.org/Public/12.1.0/ucd/UnicodeData.txt
 
 md5sums (verify by running "md5sum -c README.utf8data"):
 
diff --git a/fs/unicode/utf8-norm.c b/fs/unicode/utf8-norm.c
index 20d440c..801ed6d 100644
--- a/fs/unicode/utf8-norm.c
+++ b/fs/unicode/utf8-norm.c
@@ -714,6 +714,8 @@
 			}
 
 			leaf = utf8lookup(u8c->data, u8c->hangul, u8c->s);
+			if (!leaf)
+				return -1;
 			ccc = LEAF_CCC(leaf);
 		}
 
diff --git a/include/asm-generic/mm_hooks.h b/include/asm-generic/mm_hooks.h
index 8ac4e68..6736ed2 100644
--- a/include/asm-generic/mm_hooks.h
+++ b/include/asm-generic/mm_hooks.h
@@ -18,7 +18,6 @@
 }
 
 static inline void arch_unmap(struct mm_struct *mm,
-			struct vm_area_struct *vma,
 			unsigned long start, unsigned long end)
 {
 }
diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h
index 0c53f26..44e8fc3 100644
--- a/include/linux/clk/at91_pmc.h
+++ b/include/linux/clk/at91_pmc.h
@@ -161,6 +161,7 @@
 
 #define AT91_PMC_FSMR		0x70		/* Fast Startup Mode Register */
 #define AT91_PMC_FSTT(n)	BIT(n)
+#define AT91_PMC_RTTAL		BIT(16)
 #define AT91_PMC_RTCAL		BIT(17)		/* RTC Alarm Enable */
 #define AT91_PMC_USBAL		BIT(18)		/* USB Resume Enable */
 #define AT91_PMC_SDMMC_CD	BIT(19)		/* SDMMC Card Detect Enable */
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h
index e760dc5..476e0c5 100644
--- a/include/linux/dma-iommu.h
+++ b/include/linux/dma-iommu.h
@@ -71,12 +71,25 @@
 		size_t size, enum dma_data_direction dir, unsigned long attrs);
 
 /* The DMA API isn't _quite_ the whole story, though... */
-void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg);
+/*
+ * iommu_dma_prepare_msi() - Map the MSI page in the IOMMU device
+ *
+ * The MSI page will be stored in @desc.
+ *
+ * Return: 0 on success otherwise an error describing the failure.
+ */
+int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr);
+
+/* Update the MSI message if required. */
+void iommu_dma_compose_msi_msg(struct msi_desc *desc,
+			       struct msi_msg *msg);
+
 void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list);
 
 #else
 
 struct iommu_domain;
+struct msi_desc;
 struct msi_msg;
 struct device;
 
@@ -99,7 +112,14 @@
 {
 }
 
-static inline void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg)
+static inline int iommu_dma_prepare_msi(struct msi_desc *desc,
+					phys_addr_t msi_addr)
+{
+	return 0;
+}
+
+static inline void iommu_dma_compose_msi_msg(struct msi_desc *desc,
+					     struct msi_msg *msg)
 {
 }
 
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index be27062..6c4db54 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -470,6 +470,9 @@
 i2c_new_dummy(struct i2c_adapter *adap, u16 address);
 
 extern struct i2c_client *
+devm_i2c_new_dummy_device(struct device *dev, struct i2c_adapter *adap, u16 address);
+
+extern struct i2c_client *
 i2c_new_secondary_device(struct i2c_client *client,
 				const char *name,
 				u16 default_addr);
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 7ae8de5..fb301cf 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -625,6 +625,8 @@
 extern int irq_chip_set_vcpu_affinity_parent(struct irq_data *data,
 					     void *vcpu_info);
 extern int irq_chip_set_type_parent(struct irq_data *data, unsigned int type);
+extern int irq_chip_request_resources_parent(struct irq_data *data);
+extern void irq_chip_release_resources_parent(struct irq_data *data);
 #endif
 
 /* Handling of unhandled and spurious interrupts: */
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index c848a7c..c7e3e39 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -165,7 +165,7 @@
 #define GICR_PROPBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB)
 #define GICR_PROPBASER_nC 	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
 #define GICR_PROPBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
-#define GICR_PROPBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
+#define GICR_PROPBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWb)
 #define GICR_PROPBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt)
 #define GICR_PROPBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
 #define GICR_PROPBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt)
@@ -192,7 +192,7 @@
 #define GICR_PENDBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB)
 #define GICR_PENDBASER_nC 	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
 #define GICR_PENDBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
-#define GICR_PENDBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
+#define GICR_PENDBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWb)
 #define GICR_PENDBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt)
 #define GICR_PENDBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
 #define GICR_PENDBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt)
@@ -251,7 +251,7 @@
 #define GICR_VPROPBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nCnB)
 #define GICR_VPROPBASER_nC 	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nC)
 #define GICR_VPROPBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWt)
-#define GICR_VPROPBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWt)
+#define GICR_VPROPBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWb)
 #define GICR_VPROPBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWt)
 #define GICR_VPROPBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWb)
 #define GICR_VPROPBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWt)
@@ -277,7 +277,7 @@
 #define GICR_VPENDBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nCnB)
 #define GICR_VPENDBASER_nC 	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nC)
 #define GICR_VPENDBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWt)
-#define GICR_VPENDBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWt)
+#define GICR_VPENDBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWb)
 #define GICR_VPENDBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWt)
 #define GICR_VPENDBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWb)
 #define GICR_VPENDBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWt)
@@ -351,7 +351,7 @@
 #define GITS_CBASER_nCnB	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB)
 #define GITS_CBASER_nC		GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
 #define GITS_CBASER_RaWt	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
-#define GITS_CBASER_RaWb	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
+#define GITS_CBASER_RaWb	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWb)
 #define GITS_CBASER_WaWt	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt)
 #define GITS_CBASER_WaWb	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
 #define GITS_CBASER_RaWaWt	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt)
@@ -377,7 +377,7 @@
 #define GITS_BASER_nCnB		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB)
 #define GITS_BASER_nC		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
 #define GITS_BASER_RaWt		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
-#define GITS_BASER_RaWb		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
+#define GITS_BASER_RaWb		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWb)
 #define GITS_BASER_WaWt		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt)
 #define GITS_BASER_WaWb		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
 #define GITS_BASER_RaWaWt	GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt)
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 61706b4..07ec8b3 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -82,6 +82,7 @@
 	DOMAIN_BUS_NEXUS,
 	DOMAIN_BUS_IPI,
 	DOMAIN_BUS_FSL_MC_MSI,
+	DOMAIN_BUS_TI_SCI_INTA_MSI,
 };
 
 /**
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index c2ffff5..6c9870e 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1318,7 +1318,7 @@
 
 /* Transaction cache support */
 extern void jbd2_journal_destroy_transaction_cache(void);
-extern int  jbd2_journal_init_transaction_cache(void);
+extern int __init jbd2_journal_init_transaction_cache(void);
 extern void jbd2_journal_free_transaction(transaction_t *);
 
 /*
@@ -1446,8 +1446,10 @@
 /* Primary revoke support */
 #define JOURNAL_REVOKE_DEFAULT_HASH 256
 extern int	   jbd2_journal_init_revoke(journal_t *, int);
-extern void	   jbd2_journal_destroy_revoke_caches(void);
-extern int	   jbd2_journal_init_revoke_caches(void);
+extern void	   jbd2_journal_destroy_revoke_record_cache(void);
+extern void	   jbd2_journal_destroy_revoke_table_cache(void);
+extern int __init jbd2_journal_init_revoke_record_cache(void);
+extern int __init jbd2_journal_init_revoke_table_cache(void);
 
 extern void	   jbd2_journal_destroy_revoke(journal_t *);
 extern int	   jbd2_journal_revoke (handle_t *, unsigned long long, struct buffer_head *);
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 052f04f..d48e919 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -48,6 +48,14 @@
 };
 
 /**
+ * ti_sci_inta_msi_desc - TISCI based INTA specific msi descriptor data
+ * @dev_index: TISCI device index
+ */
+struct ti_sci_inta_msi_desc {
+	u16	dev_index;
+};
+
+/**
  * struct msi_desc - Descriptor structure for MSI based interrupts
  * @list:	List head for management
  * @irq:	The base interrupt number
@@ -68,6 +76,7 @@
  * @mask_base:	[PCI MSI-X] Mask register base address
  * @platform:	[platform]  Platform device specific msi descriptor data
  * @fsl_mc:	[fsl-mc]    FSL MC device specific msi descriptor data
+ * @inta:	[INTA]	    TISCI based INTA specific msi descriptor data
  */
 struct msi_desc {
 	/* Shared device/bus type independent data */
@@ -77,6 +86,9 @@
 	struct device			*dev;
 	struct msi_msg			msg;
 	struct irq_affinity_desc	*affinity;
+#ifdef CONFIG_IRQ_MSI_IOMMU
+	const void			*iommu_cookie;
+#endif
 
 	union {
 		/* PCI MSI/X specific data */
@@ -106,6 +118,7 @@
 		 */
 		struct platform_msi_desc platform;
 		struct fsl_mc_msi_desc fsl_mc;
+		struct ti_sci_inta_msi_desc inta;
 	};
 };
 
@@ -119,6 +132,29 @@
 #define for_each_msi_entry_safe(desc, tmp, dev)	\
 	list_for_each_entry_safe((desc), (tmp), dev_to_msi_list((dev)), list)
 
+#ifdef CONFIG_IRQ_MSI_IOMMU
+static inline const void *msi_desc_get_iommu_cookie(struct msi_desc *desc)
+{
+	return desc->iommu_cookie;
+}
+
+static inline void msi_desc_set_iommu_cookie(struct msi_desc *desc,
+					     const void *iommu_cookie)
+{
+	desc->iommu_cookie = iommu_cookie;
+}
+#else
+static inline const void *msi_desc_get_iommu_cookie(struct msi_desc *desc)
+{
+	return NULL;
+}
+
+static inline void msi_desc_set_iommu_cookie(struct msi_desc *desc,
+					     const void *iommu_cookie)
+{
+}
+#endif
+
 #ifdef CONFIG_PCI_MSI
 #define first_pci_msi_entry(pdev)	first_msi_entry(&(pdev)->dev)
 #define for_each_pci_msi_entry(desc, pdev)	\
diff --git a/include/linux/platform_data/xtalk-bridge.h b/include/linux/platform_data/xtalk-bridge.h
new file mode 100644
index 0000000..51e5001
--- /dev/null
+++ b/include/linux/platform_data/xtalk-bridge.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * SGI PCI Xtalk Bridge
+ */
+
+#ifndef PLATFORM_DATA_XTALK_BRIDGE_H
+#define PLATFORM_DATA_XTALK_BRIDGE_H
+
+#include <asm/sn/types.h>
+
+struct xtalk_bridge_platform_data {
+	struct resource	mem;
+	struct resource io;
+	unsigned long bridge_addr;
+	unsigned long intr_addr;
+	unsigned long mem_offset;
+	unsigned long io_offset;
+	nasid_t	nasid;
+	int	masterwid;
+};
+
+#endif /* PLATFORM_DATA_XTALK_BRIDGE_H */
diff --git a/include/linux/soc/ti/ti_sci_inta_msi.h b/include/linux/soc/ti/ti_sci_inta_msi.h
new file mode 100644
index 0000000..11fb504
--- /dev/null
+++ b/include/linux/soc/ti/ti_sci_inta_msi.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Texas Instruments' K3 TI SCI INTA MSI helper
+ *
+ * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
+ *	Lokesh Vutla <lokeshvutla@ti.com>
+ */
+
+#ifndef __INCLUDE_LINUX_TI_SCI_INTA_MSI_H
+#define __INCLUDE_LINUX_TI_SCI_INTA_MSI_H
+
+#include <linux/msi.h>
+#include <linux/soc/ti/ti_sci_protocol.h>
+
+struct irq_domain
+*ti_sci_inta_msi_create_irq_domain(struct fwnode_handle *fwnode,
+				   struct msi_domain_info *info,
+				   struct irq_domain *parent);
+int ti_sci_inta_msi_domain_alloc_irqs(struct device *dev,
+				      struct ti_sci_resource *res);
+unsigned int ti_sci_inta_msi_get_virq(struct device *dev, u32 index);
+void ti_sci_inta_msi_domain_free_irqs(struct device *dev);
+#endif /* __INCLUDE_LINUX_IRQCHIP_TI_SCI_INTA_H */
diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h
index 18435e5..568722a 100644
--- a/include/linux/soc/ti/ti_sci_protocol.h
+++ b/include/linux/soc/ti/ti_sci_protocol.h
@@ -193,14 +193,67 @@
 };
 
 /**
+ * struct ti_sci_rm_core_ops - Resource management core operations
+ * @get_range:		Get a range of resources belonging to ti sci host.
+ * @get_rage_from_shost:	Get a range of resources belonging to
+ *				specified host id.
+ *			- s_host: Host processing entity to which the
+ *				  resources are allocated
+ *
+ * NOTE: for these functions, all the parameters are consolidated and defined
+ * as below:
+ * - handle:	Pointer to TISCI handle as retrieved by *ti_sci_get_handle
+ * - dev_id:	TISCI device ID.
+ * - subtype:	Resource assignment subtype that is being requested
+ *		from the given device.
+ * - range_start:	Start index of the resource range
+ * - range_end:		Number of resources in the range
+ */
+struct ti_sci_rm_core_ops {
+	int (*get_range)(const struct ti_sci_handle *handle, u32 dev_id,
+			 u8 subtype, u16 *range_start, u16 *range_num);
+	int (*get_range_from_shost)(const struct ti_sci_handle *handle,
+				    u32 dev_id, u8 subtype, u8 s_host,
+				    u16 *range_start, u16 *range_num);
+};
+
+/**
+ * struct ti_sci_rm_irq_ops: IRQ management operations
+ * @set_irq:		Set an IRQ route between the requested source
+ *			and destination
+ * @set_event_map:	Set an Event based peripheral irq to Interrupt
+ *			Aggregator.
+ * @free_irq:		Free an an IRQ route between the requested source
+ *			destination.
+ * @free_event_map:	Free an event based peripheral irq to Interrupt
+ *			Aggregator.
+ */
+struct ti_sci_rm_irq_ops {
+	int (*set_irq)(const struct ti_sci_handle *handle, u16 src_id,
+		       u16 src_index, u16 dst_id, u16 dst_host_irq);
+	int (*set_event_map)(const struct ti_sci_handle *handle, u16 src_id,
+			     u16 src_index, u16 ia_id, u16 vint,
+			     u16 global_event, u8 vint_status_bit);
+	int (*free_irq)(const struct ti_sci_handle *handle, u16 src_id,
+			u16 src_index, u16 dst_id, u16 dst_host_irq);
+	int (*free_event_map)(const struct ti_sci_handle *handle, u16 src_id,
+			      u16 src_index, u16 ia_id, u16 vint,
+			      u16 global_event, u8 vint_status_bit);
+};
+
+/**
  * struct ti_sci_ops - Function support for TI SCI
  * @dev_ops:	Device specific operations
  * @clk_ops:	Clock specific operations
+ * @rm_core_ops:	Resource management core operations.
+ * @rm_irq_ops:		IRQ management specific operations
  */
 struct ti_sci_ops {
 	struct ti_sci_core_ops core_ops;
 	struct ti_sci_dev_ops dev_ops;
 	struct ti_sci_clk_ops clk_ops;
+	struct ti_sci_rm_core_ops rm_core_ops;
+	struct ti_sci_rm_irq_ops rm_irq_ops;
 };
 
 /**
@@ -213,10 +266,47 @@
 	struct ti_sci_ops ops;
 };
 
+#define TI_SCI_RESOURCE_NULL	0xffff
+
+/**
+ * struct ti_sci_resource_desc - Description of TI SCI resource instance range.
+ * @start:	Start index of the resource.
+ * @num:	Number of resources.
+ * @res_map:	Bitmap to manage the allocation of these resources.
+ */
+struct ti_sci_resource_desc {
+	u16 start;
+	u16 num;
+	unsigned long *res_map;
+};
+
+/**
+ * struct ti_sci_resource - Structure representing a resource assigned
+ *			    to a device.
+ * @sets:	Number of sets available from this resource type
+ * @lock:	Lock to guard the res map in each set.
+ * @desc:	Array of resource descriptors.
+ */
+struct ti_sci_resource {
+	u16 sets;
+	raw_spinlock_t lock;
+	struct ti_sci_resource_desc *desc;
+};
+
 #if IS_ENABLED(CONFIG_TI_SCI_PROTOCOL)
 const struct ti_sci_handle *ti_sci_get_handle(struct device *dev);
 int ti_sci_put_handle(const struct ti_sci_handle *handle);
 const struct ti_sci_handle *devm_ti_sci_get_handle(struct device *dev);
+const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np,
+						  const char *property);
+const struct ti_sci_handle *devm_ti_sci_get_by_phandle(struct device *dev,
+						       const char *property);
+u16 ti_sci_get_free_resource(struct ti_sci_resource *res);
+void ti_sci_release_resource(struct ti_sci_resource *res, u16 id);
+u32 ti_sci_get_num_resources(struct ti_sci_resource *res);
+struct ti_sci_resource *
+devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
+			    struct device *dev, u32 dev_id, char *of_prop);
 
 #else	/* CONFIG_TI_SCI_PROTOCOL */
 
@@ -236,6 +326,40 @@
 	return ERR_PTR(-EINVAL);
 }
 
+static inline
+const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np,
+						  const char *property)
+{
+	return ERR_PTR(-EINVAL);
+}
+
+static inline
+const struct ti_sci_handle *devm_ti_sci_get_by_phandle(struct device *dev,
+						       const char *property)
+{
+	return ERR_PTR(-EINVAL);
+}
+
+static inline u16 ti_sci_get_free_resource(struct ti_sci_resource *res)
+{
+	return TI_SCI_RESOURCE_NULL;
+}
+
+static inline void ti_sci_release_resource(struct ti_sci_resource *res, u16 id)
+{
+}
+
+static inline u32 ti_sci_get_num_resources(struct ti_sci_resource *res)
+{
+	return 0;
+}
+
+static inline struct ti_sci_resource *
+devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
+			    struct device *dev, u32 dev_id, char *of_prop)
+{
+	return ERR_PTR(-EINVAL);
+}
 #endif	/* CONFIG_TI_SCI_PROTOCOL */
 
 #endif	/* __TISCI_PROTOCOL_H */
diff --git a/include/linux/atmel_tc.h b/include/soc/at91/atmel_tcb.h
similarity index 98%
rename from include/linux/atmel_tc.h
rename to include/soc/at91/atmel_tcb.h
index 468fdfa..c3c7200 100644
--- a/include/linux/atmel_tc.h
+++ b/include/soc/at91/atmel_tcb.h
@@ -7,8 +7,8 @@
  * (at your option) any later version.
  */
 
-#ifndef ATMEL_TC_H
-#define ATMEL_TC_H
+#ifndef __SOC_ATMEL_TCB_H
+#define __SOC_ATMEL_TCB_H
 
 #include <linux/compiler.h>
 #include <linux/list.h>
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index 5f3e2ba..8fee066 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -91,6 +91,9 @@
 	select IRQ_DOMAIN_HIERARCHY
 	select GENERIC_MSI_IRQ
 
+config IRQ_MSI_IOMMU
+	bool
+
 config HANDLE_DOMAIN_IRQ
 	bool
 
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 51128be..29d6c7d0 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -1459,6 +1459,33 @@
 	return -ENOSYS;
 }
 EXPORT_SYMBOL_GPL(irq_chip_set_wake_parent);
+
+/**
+ * irq_chip_request_resources_parent - Request resources on the parent interrupt
+ * @data:	Pointer to interrupt specific data
+ */
+int irq_chip_request_resources_parent(struct irq_data *data)
+{
+	data = data->parent_data;
+
+	if (data->chip->irq_request_resources)
+		return data->chip->irq_request_resources(data);
+
+	return -ENOSYS;
+}
+EXPORT_SYMBOL_GPL(irq_chip_request_resources_parent);
+
+/**
+ * irq_chip_release_resources_parent - Release resources on the parent interrupt
+ * @data:	Pointer to interrupt specific data
+ */
+void irq_chip_release_resources_parent(struct irq_data *data)
+{
+	data = data->parent_data;
+	if (data->chip->irq_release_resources)
+		data->chip->irq_release_resources(data);
+}
+EXPORT_SYMBOL_GPL(irq_chip_release_resources_parent);
 #endif
 
 /**
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 9ed29e4..a453e22 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1297,7 +1297,7 @@
 /**
  * __irq_domain_alloc_irqs - Allocate IRQs from domain
  * @domain:	domain to allocate from
- * @irq_base:	allocate specified IRQ nubmer if irq_base >= 0
+ * @irq_base:	allocate specified IRQ number if irq_base >= 0
  * @nr_irqs:	number of IRQs to allocate
  * @node:	NUMA node id for memory allocation
  * @arg:	domain specific argument
diff --git a/mm/mmap.c b/mm/mmap.c
index bd7b9f2..2d6a666 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2735,9 +2735,17 @@
 		return -EINVAL;
 
 	len = PAGE_ALIGN(len);
+	end = start + len;
 	if (len == 0)
 		return -EINVAL;
 
+	/*
+	 * arch_unmap() might do unmaps itself.  It must be called
+	 * and finish any rbtree manipulation before this code
+	 * runs and also starts to manipulate the rbtree.
+	 */
+	arch_unmap(mm, start, end);
+
 	/* Find the first overlapping VMA */
 	vma = find_vma(mm, start);
 	if (!vma)
@@ -2746,7 +2754,6 @@
 	/* we have  start < vma->vm_end  */
 
 	/* if it doesn't overlap, we have nothing.. */
-	end = start + len;
 	if (vma->vm_start >= end)
 		return 0;
 
@@ -2816,12 +2823,6 @@
 	/* Detach vmas from rbtree */
 	detach_vmas_to_be_unmapped(mm, vma, prev, end);
 
-	/*
-	 * mpx unmap needs to be called with mmap_sem held for write.
-	 * It is safe to call it before unmap_region().
-	 */
-	arch_unmap(mm, vma, start, end);
-
 	if (downgrade)
 		downgrade_write(&mm->mmap_sem);
 
diff --git a/tools/arch/x86/include/uapi/asm/kvm.h b/tools/arch/x86/include/uapi/asm/kvm.h
index dabfcf7..7a0e64c 100644
--- a/tools/arch/x86/include/uapi/asm/kvm.h
+++ b/tools/arch/x86/include/uapi/asm/kvm.h
@@ -381,6 +381,7 @@
 #define KVM_X86_QUIRK_LINT0_REENABLED	(1 << 0)
 #define KVM_X86_QUIRK_CD_NW_CLEARED	(1 << 1)
 #define KVM_X86_QUIRK_LAPIC_MMIO_HOLE	(1 << 2)
+#define KVM_X86_QUIRK_OUT_7E_INC_RIP	(1 << 3)
 
 #define KVM_STATE_NESTED_GUEST_MODE	0x00000001
 #define KVM_STATE_NESTED_RUN_PENDING	0x00000002
diff --git a/tools/arch/x86/include/uapi/asm/perf_regs.h b/tools/arch/x86/include/uapi/asm/perf_regs.h
index f3329ca..ac67bbe 100644
--- a/tools/arch/x86/include/uapi/asm/perf_regs.h
+++ b/tools/arch/x86/include/uapi/asm/perf_regs.h
@@ -27,8 +27,29 @@
 	PERF_REG_X86_R13,
 	PERF_REG_X86_R14,
 	PERF_REG_X86_R15,
-
+	/* These are the limits for the GPRs. */
 	PERF_REG_X86_32_MAX = PERF_REG_X86_GS + 1,
 	PERF_REG_X86_64_MAX = PERF_REG_X86_R15 + 1,
+
+	/* These all need two bits set because they are 128bit */
+	PERF_REG_X86_XMM0  = 32,
+	PERF_REG_X86_XMM1  = 34,
+	PERF_REG_X86_XMM2  = 36,
+	PERF_REG_X86_XMM3  = 38,
+	PERF_REG_X86_XMM4  = 40,
+	PERF_REG_X86_XMM5  = 42,
+	PERF_REG_X86_XMM6  = 44,
+	PERF_REG_X86_XMM7  = 46,
+	PERF_REG_X86_XMM8  = 48,
+	PERF_REG_X86_XMM9  = 50,
+	PERF_REG_X86_XMM10 = 52,
+	PERF_REG_X86_XMM11 = 54,
+	PERF_REG_X86_XMM12 = 56,
+	PERF_REG_X86_XMM13 = 58,
+	PERF_REG_X86_XMM14 = 60,
+	PERF_REG_X86_XMM15 = 62,
+
+	/* These include both GPRs and XMMX registers */
+	PERF_REG_X86_XMM_MAX = PERF_REG_X86_XMM15 + 2,
 };
 #endif /* _ASM_X86_PERF_REGS_H */
diff --git a/tools/arch/x86/lib/memcpy_64.S b/tools/arch/x86/lib/memcpy_64.S
index 3b24dc0..9d05572 100644
--- a/tools/arch/x86/lib/memcpy_64.S
+++ b/tools/arch/x86/lib/memcpy_64.S
@@ -257,6 +257,7 @@
 	/* Copy successful. Return zero */
 .L_done_memcpy_trap:
 	xorl %eax, %eax
+.L_done:
 	ret
 ENDPROC(__memcpy_mcsafe)
 EXPORT_SYMBOL_GPL(__memcpy_mcsafe)
@@ -273,7 +274,7 @@
 	addl	%edx, %ecx
 .E_trailing_bytes:
 	mov	%ecx, %eax
-	ret
+	jmp	.L_done
 
 	/*
 	 * For write fault handling, given the destination is unaligned,
diff --git a/tools/lib/traceevent/Documentation/Makefile b/tools/lib/traceevent/Documentation/Makefile
new file mode 100644
index 0000000..aa72ab9
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/Makefile
@@ -0,0 +1,207 @@
+include ../../../scripts/Makefile.include
+include ../../../scripts/utilities.mak
+
+# This Makefile and manpage XSL files were taken from tools/perf/Documentation
+# and modified for libtraceevent.
+
+MAN3_TXT= \
+	$(wildcard libtraceevent-*.txt) \
+	libtraceevent.txt
+
+MAN_TXT = $(MAN3_TXT)
+_MAN_XML=$(patsubst %.txt,%.xml,$(MAN_TXT))
+_MAN_HTML=$(patsubst %.txt,%.html,$(MAN_TXT))
+_DOC_MAN3=$(patsubst %.txt,%.3,$(MAN3_TXT))
+
+MAN_XML=$(addprefix $(OUTPUT),$(_MAN_XML))
+MAN_HTML=$(addprefix $(OUTPUT),$(_MAN_HTML))
+DOC_MAN3=$(addprefix $(OUTPUT),$(_DOC_MAN3))
+
+# Make the path relative to DESTDIR, not prefix
+ifndef DESTDIR
+prefix?=$(HOME)
+endif
+bindir?=$(prefix)/bin
+htmldir?=$(prefix)/share/doc/libtraceevent-doc
+pdfdir?=$(prefix)/share/doc/libtraceevent-doc
+mandir?=$(prefix)/share/man
+man3dir=$(mandir)/man3
+
+ASCIIDOC=asciidoc
+ASCIIDOC_EXTRA = --unsafe -f asciidoc.conf
+ASCIIDOC_HTML = xhtml11
+MANPAGE_XSL = manpage-normal.xsl
+XMLTO_EXTRA =
+INSTALL?=install
+RM ?= rm -f
+
+ifdef USE_ASCIIDOCTOR
+ASCIIDOC = asciidoctor
+ASCIIDOC_EXTRA = -a compat-mode
+ASCIIDOC_EXTRA += -I. -rasciidoctor-extensions
+ASCIIDOC_EXTRA += -a mansource="libtraceevent" -a manmanual="libtraceevent Manual"
+ASCIIDOC_HTML = xhtml5
+endif
+
+XMLTO=xmlto
+
+_tmp_tool_path := $(call get-executable,$(ASCIIDOC))
+ifeq ($(_tmp_tool_path),)
+	missing_tools = $(ASCIIDOC)
+endif
+
+ifndef USE_ASCIIDOCTOR
+_tmp_tool_path := $(call get-executable,$(XMLTO))
+ifeq ($(_tmp_tool_path),)
+	missing_tools += $(XMLTO)
+endif
+endif
+
+#
+# For asciidoc ...
+#	-7.1.2,	no extra settings are needed.
+#	8.0-,	set ASCIIDOC8.
+#
+
+#
+# For docbook-xsl ...
+#	-1.68.1,	set ASCIIDOC_NO_ROFF? (based on changelog from 1.73.0)
+#	1.69.0,		no extra settings are needed?
+#	1.69.1-1.71.0,	set DOCBOOK_SUPPRESS_SP?
+#	1.71.1,		no extra settings are needed?
+#	1.72.0,		set DOCBOOK_XSL_172.
+#	1.73.0-,	set ASCIIDOC_NO_ROFF
+#
+
+#
+# If you had been using DOCBOOK_XSL_172 in an attempt to get rid
+# of 'the ".ft C" problem' in your generated manpages, and you
+# instead ended up with weird characters around callouts, try
+# using ASCIIDOC_NO_ROFF instead (it works fine with ASCIIDOC8).
+#
+
+ifdef ASCIIDOC8
+ASCIIDOC_EXTRA += -a asciidoc7compatible
+endif
+ifdef DOCBOOK_XSL_172
+ASCIIDOC_EXTRA += -a libtraceevent-asciidoc-no-roff
+MANPAGE_XSL = manpage-1.72.xsl
+else
+	ifdef ASCIIDOC_NO_ROFF
+	# docbook-xsl after 1.72 needs the regular XSL, but will not
+	# pass-thru raw roff codes from asciidoc.conf, so turn them off.
+	ASCIIDOC_EXTRA += -a libtraceevent-asciidoc-no-roff
+	endif
+endif
+ifdef MAN_BOLD_LITERAL
+XMLTO_EXTRA += -m manpage-bold-literal.xsl
+endif
+ifdef DOCBOOK_SUPPRESS_SP
+XMLTO_EXTRA += -m manpage-suppress-sp.xsl
+endif
+
+SHELL_PATH ?= $(SHELL)
+# Shell quote;
+SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
+
+DESTDIR ?=
+DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
+
+export DESTDIR DESTDIR_SQ
+
+#
+# Please note that there is a minor bug in asciidoc.
+# The version after 6.0.3 _will_ include the patch found here:
+#   http://marc.theaimsgroup.com/?l=libtraceevent&m=111558757202243&w=2
+#
+# Until that version is released you may have to apply the patch
+# yourself - yes, all 6 characters of it!
+#
+QUIET_SUBDIR0  = +$(MAKE) -C # space to separate -C and subdir
+QUIET_SUBDIR1  =
+
+ifneq ($(findstring $(MAKEFLAGS),w),w)
+PRINT_DIR = --no-print-directory
+else # "make -w"
+NO_SUBDIR = :
+endif
+
+ifneq ($(findstring $(MAKEFLAGS),s),s)
+ifneq ($(V),1)
+	QUIET_ASCIIDOC	= @echo '  ASCIIDOC '$@;
+	QUIET_XMLTO	= @echo '  XMLTO    '$@;
+	QUIET_SUBDIR0	= +@subdir=
+	QUIET_SUBDIR1	= ;$(NO_SUBDIR) \
+			   echo '  SUBDIR   ' $$subdir; \
+			  $(MAKE) $(PRINT_DIR) -C $$subdir
+	export V
+endif
+endif
+
+all: html man
+
+man: man3
+man3: $(DOC_MAN3)
+
+html: $(MAN_HTML)
+
+$(MAN_HTML) $(DOC_MAN3): asciidoc.conf
+
+install: install-man
+
+check-man-tools:
+ifdef missing_tools
+	$(error "You need to install $(missing_tools) for man pages")
+endif
+
+do-install-man: man
+	$(call QUIET_INSTALL, Documentation-man) \
+		$(INSTALL) -d -m 755 $(DESTDIR)$(man3dir); \
+		$(INSTALL) -m 644 $(DOC_MAN3) $(DESTDIR)$(man3dir);
+
+install-man: check-man-tools man do-install-man
+
+uninstall: uninstall-man
+
+uninstall-man:
+	$(call QUIET_UNINST, Documentation-man) \
+		$(Q)$(RM) $(addprefix $(DESTDIR)$(man3dir)/,$(DOC_MAN3))
+
+
+ifdef missing_tools
+  DO_INSTALL_MAN = $(warning Please install $(missing_tools) to have the man pages installed)
+else
+  DO_INSTALL_MAN = do-install-man
+endif
+
+CLEAN_FILES =					\
+	$(MAN_XML) $(addsuffix +,$(MAN_XML))	\
+	$(MAN_HTML) $(addsuffix +,$(MAN_HTML))	\
+	$(DOC_MAN3) *.3
+
+clean:
+	$(call QUIET_CLEAN, Documentation) $(RM) $(CLEAN_FILES)
+
+ifdef USE_ASCIIDOCTOR
+$(OUTPUT)%.3 : $(OUTPUT)%.txt
+	$(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
+	$(ASCIIDOC) -b manpage -d manpage \
+		$(ASCIIDOC_EXTRA) -alibtraceevent_version=$(EVENT_PARSE_VERSION) -o $@+ $< && \
+	mv $@+ $@
+endif
+
+$(OUTPUT)%.3 : $(OUTPUT)%.xml
+	$(QUIET_XMLTO)$(RM) $@ && \
+	$(XMLTO) -o $(OUTPUT). -m $(MANPAGE_XSL) $(XMLTO_EXTRA) man $<
+
+$(OUTPUT)%.xml : %.txt
+	$(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
+	$(ASCIIDOC) -b docbook -d manpage \
+		$(ASCIIDOC_EXTRA) -alibtraceevent_version=$(EVENT_PARSE_VERSION) -o $@+ $< && \
+	mv $@+ $@
+
+$(MAN_HTML): $(OUTPUT)%.html : %.txt
+	$(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
+	$(ASCIIDOC) -b $(ASCIIDOC_HTML) -d manpage \
+		$(ASCIIDOC_EXTRA) -aperf_version=$(EVENT_PARSE_VERSION) -o $@+ $< && \
+	mv $@+ $@
diff --git a/tools/lib/traceevent/Documentation/asciidoc.conf b/tools/lib/traceevent/Documentation/asciidoc.conf
new file mode 100644
index 0000000..0759571
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/asciidoc.conf
@@ -0,0 +1,120 @@
+## linktep: macro
+#
+# Usage: linktep:command[manpage-section]
+#
+# Note, {0} is the manpage section, while {target} is the command.
+#
+# Show TEP link as: <command>(<section>); if section is defined, else just show
+# the command.
+
+[macros]
+(?su)[\\]?(?P<name>linktep):(?P<target>\S*?)\[(?P<attrlist>.*?)\]=
+
+[attributes]
+asterisk=&#42;
+plus=&#43;
+caret=&#94;
+startsb=&#91;
+endsb=&#93;
+tilde=&#126;
+
+ifdef::backend-docbook[]
+[linktep-inlinemacro]
+{0%{target}}
+{0#<citerefentry>}
+{0#<refentrytitle>{target}</refentrytitle><manvolnum>{0}</manvolnum>}
+{0#</citerefentry>}
+endif::backend-docbook[]
+
+ifdef::backend-docbook[]
+ifndef::tep-asciidoc-no-roff[]
+# "unbreak" docbook-xsl v1.68 for manpages. v1.69 works with or without this.
+# v1.72 breaks with this because it replaces dots not in roff requests.
+[listingblock]
+<example><title>{title}</title>
+<literallayout>
+ifdef::doctype-manpage[]
+&#10;.ft C&#10;
+endif::doctype-manpage[]
+|
+ifdef::doctype-manpage[]
+&#10;.ft&#10;
+endif::doctype-manpage[]
+</literallayout>
+{title#}</example>
+endif::tep-asciidoc-no-roff[]
+
+ifdef::tep-asciidoc-no-roff[]
+ifdef::doctype-manpage[]
+# The following two small workarounds insert a simple paragraph after screen
+[listingblock]
+<example><title>{title}</title>
+<literallayout>
+|
+</literallayout><simpara></simpara>
+{title#}</example>
+
+[verseblock]
+<formalpara{id? id="{id}"}><title>{title}</title><para>
+{title%}<literallayout{id? id="{id}"}>
+{title#}<literallayout>
+|
+</literallayout>
+{title#}</para></formalpara>
+{title%}<simpara></simpara>
+endif::doctype-manpage[]
+endif::tep-asciidoc-no-roff[]
+endif::backend-docbook[]
+
+ifdef::doctype-manpage[]
+ifdef::backend-docbook[]
+[header]
+template::[header-declarations]
+<refentry>
+<refmeta>
+<refentrytitle>{mantitle}</refentrytitle>
+<manvolnum>{manvolnum}</manvolnum>
+<refmiscinfo class="source">libtraceevent</refmiscinfo>
+<refmiscinfo class="version">{libtraceevent_version}</refmiscinfo>
+<refmiscinfo class="manual">libtraceevent Manual</refmiscinfo>
+</refmeta>
+<refnamediv>
+  <refname>{manname1}</refname>
+  <refname>{manname2}</refname>
+  <refname>{manname3}</refname>
+  <refname>{manname4}</refname>
+  <refname>{manname5}</refname>
+  <refname>{manname6}</refname>
+  <refname>{manname7}</refname>
+  <refname>{manname8}</refname>
+  <refname>{manname9}</refname>
+  <refname>{manname10}</refname>
+  <refname>{manname11}</refname>
+  <refname>{manname12}</refname>
+  <refname>{manname13}</refname>
+  <refname>{manname14}</refname>
+  <refname>{manname15}</refname>
+  <refname>{manname16}</refname>
+  <refname>{manname17}</refname>
+  <refname>{manname18}</refname>
+  <refname>{manname19}</refname>
+  <refname>{manname20}</refname>
+  <refname>{manname21}</refname>
+  <refname>{manname22}</refname>
+  <refname>{manname23}</refname>
+  <refname>{manname24}</refname>
+  <refname>{manname25}</refname>
+  <refname>{manname26}</refname>
+  <refname>{manname27}</refname>
+  <refname>{manname28}</refname>
+  <refname>{manname29}</refname>
+  <refname>{manname30}</refname>
+  <refpurpose>{manpurpose}</refpurpose>
+</refnamediv>
+endif::backend-docbook[]
+endif::doctype-manpage[]
+
+ifdef::backend-xhtml11[]
+[linktep-inlinemacro]
+<a href="{target}.html">{target}{0?({0})}</a>
+endif::backend-xhtml11[]
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-commands.txt b/tools/lib/traceevent/Documentation/libtraceevent-commands.txt
new file mode 100644
index 0000000..bec5520
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-commands.txt
@@ -0,0 +1,153 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_register_comm, tep_override_comm, tep_pid_is_registered,
+tep_data_comm_from_pid, tep_data_pid_from_comm, tep_cmdline_pid -
+Manage pid to process name mappings.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_register_comm*(struct tep_handle pass:[*]_tep_, const char pass:[*]_comm_, int _pid_);
+int *tep_override_comm*(struct tep_handle pass:[*]_tep_, const char pass:[*]_comm_, int _pid_);
+bool *tep_is_pid_registered*(struct tep_handle pass:[*]_tep_, int _pid_);
+const char pass:[*]*tep_data_comm_from_pid*(struct tep_handle pass:[*]_pevent_, int _pid_);
+struct cmdline pass:[*]*tep_data_pid_from_comm*(struct tep_handle pass:[*]_pevent_, const char pass:[*]_comm_, struct cmdline pass:[*]_next_);
+int *tep_cmdline_pid*(struct tep_handle pass:[*]_pevent_, struct cmdline pass:[*]_cmdline_);
+--
+
+DESCRIPTION
+-----------
+These functions can be used to handle the mapping between pid and process name.
+The library builds a cache of these mappings, which is used to display the name
+of the process, instead of its pid. This information can be retrieved from
+tracefs/saved_cmdlines file.
+
+The _tep_register_comm()_ function registers a _pid_ / process name mapping.
+If a command with the same _pid_ is already registered, an error is returned.
+The _pid_ argument is the process ID, the _comm_ argument is the process name,
+_tep_ is the event context. The _comm_ is duplicated internally.
+
+The _tep_override_comm()_ function registers a _pid_ / process name mapping.
+If a process with the same pid is already registered, the process name string is
+udapted with the new one. The _pid_ argument is the process ID, the _comm_
+argument is the process name, _tep_ is the event context. The _comm_ is
+duplicated internally.
+
+The _tep_is_pid_registered()_ function checks if a pid has a process name
+mapping registered. The _pid_ argument is the process ID, _tep_ is the event
+context.
+
+The _tep_data_comm_from_pid()_ function returns the process name for a given
+pid. The _pid_ argument is the process ID, _tep_ is the event context.
+The returned string should not be freed, but will be freed when the _tep_
+handler is closed.
+
+The _tep_data_pid_from_comm()_ function returns a pid for a given process name.
+The _comm_ argument is the process name, _tep_ is the event context.
+The argument _next_ is the cmdline structure to search for the next pid.
+As there may be more than one pid for a given process, the result of this call
+can be passed back into a recurring call in the _next_ parameter, to search for
+the next pid. If _next_ is NULL, it will return the first pid associated with
+the _comm_. The function performs a linear search, so it may be slow.
+
+The _tep_cmdline_pid()_ function returns the pid associated with a given
+_cmdline_. The _tep_ argument is the event context.
+
+RETURN VALUE
+------------
+_tep_register_comm()_ function returns 0 on success. In case of an error -1 is
+returned and errno is set to indicate the cause of the problem: ENOMEM, if there
+is not enough memory to duplicate the _comm_ or EEXIST if a mapping for this
+_pid_ is already registered.
+
+_tep_override_comm()_ function returns 0 on success. In case of an error -1 is
+returned and errno is set to indicate the cause of the problem: ENOMEM, if there
+is not enough memory to duplicate the _comm_.
+
+_tep_is_pid_registered()_ function returns true if the _pid_ has a process name
+mapped to it, false otherwise.
+
+_tep_data_comm_from_pid()_ function returns the process name as string, or the
+string "<...>" if there is no mapping for the given pid.
+
+_tep_data_pid_from_comm()_ function returns a pointer to a struct cmdline, that
+holds a pid for a given process, or NULL if none is found. This result can be
+passed back into a recurring call as the _next_ parameter of the function.
+
+_tep_cmdline_pid()_ functions returns the pid for the give cmdline. If _cmdline_
+ is NULL, then -1 is returned.
+
+EXAMPLE
+-------
+The following example registers pid for command "ls", in context of event _tep_
+and performs various searches for pid / process name mappings:
+[source,c]
+--
+#include <event-parse.h>
+...
+int ret;
+int ls_pid = 1021;
+struct tep_handle *tep = tep_alloc();
+...
+	ret = tep_register_comm(tep, "ls", ls_pid);
+	if (ret != 0 && errno == EEXIST)
+		ret = tep_override_comm(tep, "ls", ls_pid);
+	if (ret != 0) {
+		/* Failed to register pid / command mapping */
+	}
+...
+	if (tep_is_pid_registered(tep, ls_pid) == 0) {
+		/* Command mapping for ls_pid is not registered */
+	}
+...
+	const char *comm = tep_data_comm_from_pid(tep, ls_pid);
+	if (comm) {
+		/* Found process name for ls_pid */
+	}
+...
+	int pid;
+	struct cmdline *cmd = tep_data_pid_from_comm(tep, "ls", NULL);
+	while (cmd) {
+		pid = tep_cmdline_pid(tep, cmd);
+		/* Found pid for process "ls" */
+		cmd = tep_data_pid_from_comm(tep, "ls", cmd);
+	}
+--
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt b/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt
new file mode 100644
index 0000000..5ad70e4
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt
@@ -0,0 +1,77 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_get_cpus, tep_set_cpus - Get / set the number of CPUs, which have a tracing
+buffer representing it. Note, the buffer may be empty.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_get_cpus*(struct tep_handle pass:[*]_tep_);
+void *tep_set_cpus*(struct tep_handle pass:[*]_tep_, int _cpus_);
+--
+
+DESCRIPTION
+-----------
+The _tep_get_cpus()_ function gets the number of CPUs, which have a tracing
+buffer representing it. The _tep_ argument is trace event parser context.
+
+The _tep_set_cpus()_ function sets the number of CPUs, which have a tracing
+buffer representing it. The _tep_ argument is trace event parser context.
+The _cpu_ argument is the number of CPUs with tracing data.
+
+RETURN VALUE
+------------
+The _tep_get_cpus()_ functions returns the number of CPUs, which have tracing
+data recorded.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+	tep_set_cpus(tep, 5);
+...
+	printf("We have tracing data for %d CPUs", tep_get_cpus(tep));
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-endian_read.txt b/tools/lib/traceevent/Documentation/libtraceevent-endian_read.txt
new file mode 100644
index 0000000..e64851b
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-endian_read.txt
@@ -0,0 +1,78 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_read_number - Reads a number from raw data.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+unsigned long long *tep_read_number*(struct tep_handle pass:[*]_tep_, const void pass:[*]_ptr_, int _size_);
+--
+
+DESCRIPTION
+-----------
+The _tep_read_number()_ function reads an integer from raw data, taking into
+account the endianness of the raw data and the current host. The _tep_ argument
+is the trace event parser context. The _ptr_ is a pointer to the raw data, where
+the integer is, and the _size_ is the size of the integer.
+
+RETURN VALUE
+------------
+The _tep_read_number()_ function returns the integer in the byte order of
+the current host. In case of an error, 0 is returned.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+void process_record(struct tep_record *record)
+{
+	int offset = 24;
+	int data = tep_read_number(tep, record->data + offset, 4);
+
+	/* Read the 4 bytes at the offset 24 of data as an integer */
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-event_find.txt b/tools/lib/traceevent/Documentation/libtraceevent-event_find.txt
new file mode 100644
index 0000000..7bc062c
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-event_find.txt
@@ -0,0 +1,103 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_find_event,tep_find_event_by_name,tep_find_event_by_record -
+Find events by given key.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+struct tep_event pass:[*]*tep_find_event*(struct tep_handle pass:[*]_tep_, int _id_);
+struct tep_event pass:[*]*tep_find_event_by_name*(struct tep_handle pass:[*]_tep_, const char pass:[*]_sys_, const char pass:[*]_name_);
+struct tep_event pass:[*]*tep_find_event_by_record*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_record_);
+--
+
+DESCRIPTION
+-----------
+This set of functions can be used to search for an event, based on a given
+criteria. All functions require a pointer to a _tep_, trace event parser
+context.
+
+The _tep_find_event()_ function searches for an event by given event _id_. The
+event ID is assigned dynamically and can be viewed in event's format file,
+"ID" field.
+
+The tep_find_event_by_name()_ function searches for an event by given
+event _name_, under the system _sys_. If the _sys_ is NULL (not specified),
+the first event with _name_ is returned.
+
+The tep_find_event_by_record()_ function searches for an event from a given
+_record_.
+
+RETURN VALUE
+------------
+All these functions return a pointer to the found event, or NULL if there is no
+such event.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+struct tep_event *event;
+
+event = tep_find_event(tep, 1857);
+if (event == NULL) {
+	/* There is no event with ID 1857 */
+}
+
+event = tep_find_event_by_name(tep, "kvm", "kvm_exit");
+if (event == NULL) {
+	/* There is no kvm_exit event, from kvm system */
+}
+
+void event_from_record(struct tep_record *record)
+{
+ struct tep_event *event = tep_find_event_by_record(tep, record);
+	if (event == NULL) {
+		/* There is no event from given record */
+	}
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-event_get.txt b/tools/lib/traceevent/Documentation/libtraceevent-event_get.txt
new file mode 100644
index 0000000..6525092
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-event_get.txt
@@ -0,0 +1,99 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_get_event, tep_get_first_event, tep_get_events_count - Access events.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+struct tep_event pass:[*]*tep_get_event*(struct tep_handle pass:[*]_tep_, int _index_);
+struct tep_event pass:[*]*tep_get_first_event*(struct tep_handle pass:[*]_tep_);
+int *tep_get_events_count*(struct tep_handle pass:[*]_tep_);
+--
+
+DESCRIPTION
+-----------
+The _tep_get_event()_ function returns a pointer to event at the given _index_.
+The _tep_ argument is trace event parser context, the _index_ is the index of
+the requested event.
+
+The _tep_get_first_event()_ function returns a pointer to the first event.
+As events are stored in an array, this function returns the pointer to the
+beginning of the array. The _tep_ argument is trace event parser context.
+
+The _tep_get_events_count()_ function returns the number of the events
+in the array. The _tep_ argument is trace event parser context.
+
+RETURN VALUE
+------------
+The _tep_get_event()_ returns a pointer to the event located at _index_.
+NULL is returned in case of error, in case there are no events or _index_ is
+out of range.
+
+The _tep_get_first_event()_ returns a pointer to the first event. NULL is
+returned in case of error, or in case there are no events.
+
+The _tep_get_events_count()_ returns the number of the events. 0 is
+returned in case of error, or in case there are no events.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+int i,count = tep_get_events_count(tep);
+struct tep_event *event, *events = tep_get_first_event(tep);
+
+if (events == NULL) {
+	/* There are no events */
+} else {
+	for (i = 0; i < count; i++) {
+		event = (events+i);
+		/* process events[i] */
+	}
+
+	/* Get the last event */
+	event = tep_get_event(tep, count-1);
+}
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-event_list.txt b/tools/lib/traceevent/Documentation/libtraceevent-event_list.txt
new file mode 100644
index 0000000..fba350e
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-event_list.txt
@@ -0,0 +1,122 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_list_events, tep_list_events_copy -
+Get list of events, sorted by given criteria.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+enum *tep_event_sort_type* {
+	_TEP_EVENT_SORT_ID_,
+	_TEP_EVENT_SORT_NAME_,
+	_TEP_EVENT_SORT_SYSTEM_,
+};
+
+struct tep_event pass:[*]pass:[*]*tep_list_events*(struct tep_handle pass:[*]_tep_, enum tep_event_sort_type _sort_type_);
+struct tep_event pass:[*]pass:[*]*tep_list_events_copy*(struct tep_handle pass:[*]_tep_, enum tep_event_sort_type _sort_type_);
+--
+
+DESCRIPTION
+-----------
+The _tep_list_events()_ function returns an array of pointers to the events,
+sorted by the _sort_type_ criteria. The last element of the array is NULL.
+The returned memory must not be freed, it is managed by the library.
+The function is not thread safe. The _tep_ argument is trace event parser
+context. The _sort_type_ argument is the required sort criteria:
+[verse]
+--
+	_TEP_EVENT_SORT_ID_	- sort by the event ID.
+	_TEP_EVENT_SORT_NAME_	- sort by the event (name, system, id) triplet.
+	_TEP_EVENT_SORT_SYSTEM_	- sort by the event (system, name, id) triplet.
+--
+
+The _tep_list_events_copy()_ is a thread safe version of _tep_list_events()_.
+It has the same behavior, but the returned array is allocated internally and
+must be freed by the caller. Note that the content of the array must not be
+freed (see the EXAMPLE below).
+
+RETURN VALUE
+------------
+The _tep_list_events()_ function returns an array of pointers to events.
+In case of an error, NULL is returned. The returned array must not be freed,
+it is managed by the library.
+
+The _tep_list_events_copy()_ function returns an array of pointers to events.
+In case of an error, NULL is returned. The returned array must be freed by
+the caller.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+int i;
+struct tep_event_format **events;
+
+i=0;
+events = tep_list_events(tep, TEP_EVENT_SORT_ID);
+if (events == NULL) {
+	/* Failed to get the events, sorted by ID */
+} else {
+	while(events[i]) {
+		/* walk through the list of the events, sorted by ID */
+		i++;
+	}
+}
+
+i=0;
+events = tep_list_events_copy(tep, TEP_EVENT_SORT_NAME);
+if (events == NULL) {
+	/* Failed to get the events, sorted by name */
+} else {
+	while(events[i]) {
+		/* walk through the list of the events, sorted by name */
+		i++;
+	}
+	free(events);
+}
+
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-field_find.txt b/tools/lib/traceevent/Documentation/libtraceevent-field_find.txt
new file mode 100644
index 0000000..0896af5
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-field_find.txt
@@ -0,0 +1,118 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_find_common_field, tep_find_field, tep_find_any_field -
+Search for a field in an event.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+struct tep_format_field pass:[*]*tep_find_common_field*(struct tep_event pass:[*]_event_, const char pass:[*]_name_);
+struct tep_format_field pass:[*]*tep_find_field*(struct tep_event_ormat pass:[*]_event_, const char pass:[*]_name_);
+struct tep_format_field pass:[*]*tep_find_any_field*(struct tep_event pass:[*]_event_, const char pass:[*]_name_);
+--
+
+DESCRIPTION
+-----------
+These functions search for a field with given name in an event. The field
+returned can be used to find the field content from within a data record.
+
+The _tep_find_common_field()_ function searches for a common field with _name_
+in the _event_.
+
+The _tep_find_field()_ function searches for an event specific field with
+_name_ in the _event_.
+
+The _tep_find_any_field()_ function searches for any field with _name_ in the
+_event_.
+
+RETURN VALUE
+------------
+The _tep_find_common_field(), _tep_find_field()_ and _tep_find_any_field()_
+functions return a pointer to the found field, or NULL in case there is no field
+with the requested name.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+void get_htimer_info(struct tep_handle *tep, struct tep_record *record)
+{
+	struct tep_format_field *field;
+	struct tep_event *event;
+	long long softexpires;
+	int mode;
+	int pid;
+
+	event = tep_find_event_by_name(tep, "timer", "hrtimer_start");
+
+	field = tep_find_common_field(event, "common_pid");
+	if (field == NULL) {
+		/* Cannot find "common_pid" field in the event */
+	} else {
+		/* Get pid from the data record */
+		pid = tep_read_number(tep, record->data + field->offset,
+				      field->size);
+	}
+
+	field = tep_find_field(event, "softexpires");
+	if (field == NULL) {
+		/* Cannot find "softexpires" event specific field in the event */
+	} else {
+		/* Get softexpires parameter from the data record */
+		softexpires = tep_read_number(tep, record->data + field->offset,
+					      field->size);
+	}
+
+	field = tep_find_any_field(event, "mode");
+	if (field == NULL) {
+		/* Cannot find "mode" field in the event */
+	} else
+	{
+		/* Get mode parameter from the data record */
+		mode = tep_read_number(tep, record->data + field->offset,
+				       field->size);
+	}
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-field_get_val.txt b/tools/lib/traceevent/Documentation/libtraceevent-field_get_val.txt
new file mode 100644
index 0000000..6324f0d
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-field_get_val.txt
@@ -0,0 +1,122 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_get_any_field_val, tep_get_common_field_val, tep_get_field_val,
+tep_get_field_raw - Get value of a field.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+*#include <trace-seq.h>*
+
+int *tep_get_any_field_val*(struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, unsigned long long pass:[*]_val_, int _err_);
+int *tep_get_common_field_val*(struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, unsigned long long pass:[*]_val_, int _err_);
+int *tep_get_field_val*(struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, unsigned long long pass:[*]_val_, int _err_);
+void pass:[*]*tep_get_field_raw*(struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, int pass:[*]_len_, int _err_);
+--
+
+DESCRIPTION
+-----------
+These functions can be used to find a field and retrieve its value.
+
+The _tep_get_any_field_val()_ function searches in the _record_ for a field
+with _name_, part of the _event_. If the field is found, its value is stored in
+_val_. If there is an error and _err_ is not zero, then an error string is
+written into _s_.
+
+The _tep_get_common_field_val()_ function does the same as
+_tep_get_any_field_val()_, but searches only in the common fields. This works
+for any event as all events include the common fields.
+
+The _tep_get_field_val()_ function does the same as _tep_get_any_field_val()_,
+but searches only in the event specific fields.
+
+The _tep_get_field_raw()_ function searches in the _record_ for a field with
+_name_, part of the _event_. If the field is found, a pointer to where the field
+exists in the record's raw data is returned. The size of the data is stored in
+_len_. If there is an error and _err_ is not zero, then an error string is
+written into _s_.
+
+RETURN VALUE
+------------
+The _tep_get_any_field_val()_, _tep_get_common_field_val()_ and
+_tep_get_field_val()_ functions return 0 on success, or -1 in case of an error.
+
+The _tep_get_field_raw()_ function returns a pointer to field's raw data, and
+places the length of this data in _len_. In case of an error NULL is returned.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+#include <trace-seq.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+struct tep_event *event = tep_find_event_by_name(tep, "kvm", "kvm_exit");
+...
+void process_record(struct tep_record *record)
+{
+	int len;
+	char *comm;
+	struct tep_event_format *event;
+	unsigned long long val;
+
+	event = tep_find_event_by_record(pevent, record);
+	if (event != NULL) {
+		if (tep_get_common_field_val(NULL, event, "common_type",
+					     record, &val, 0) == 0) {
+			/* Got the value of common type field */
+		}
+		if (tep_get_field_val(NULL, event, "pid", record, &val, 0) == 0) {
+			/* Got the value of pid specific field */
+		}
+		comm = tep_get_field_raw(NULL, event, "comm", record, &len, 0);
+		if (comm != NULL) {
+			/* Got a pointer to the comm event specific field */
+		}
+	}
+}
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*trace-seq.h*
+	Header file to include in order to have access to trace sequences
+	related APIs. Trace sequences are used to allow a function to call
+	several other functions to create a string of data to use.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-field_print.txt b/tools/lib/traceevent/Documentation/libtraceevent-field_print.txt
new file mode 100644
index 0000000..9a9df98
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-field_print.txt
@@ -0,0 +1,126 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_print_field, tep_print_fields, tep_print_num_field, tep_print_func_field -
+Print the field content.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+*#include <trace-seq.h>*
+
+void *tep_print_field*(struct trace_seq pass:[*]_s_, void pass:[*]_data_, struct tep_format_field pass:[*]_field_);
+void *tep_print_fields*(struct trace_seq pass:[*]_s_, void pass:[*]_data_, int _size_, struct tep_event pass:[*]_event_);
+int *tep_print_num_field*(struct trace_seq pass:[*]_s_, const char pass:[*]_fmt_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, int _err_);
+int *tep_print_func_field*(struct trace_seq pass:[*]_s_, const char pass:[*]_fmt_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, int _err_);
+--
+
+DESCRIPTION
+-----------
+These functions print recorded field's data, according to the field's type.
+
+The _tep_print_field()_ function extracts from the recorded raw _data_ value of
+the _field_ and prints it into _s_, according to the field type.
+
+The _tep_print_fields()_ prints each field name followed by the record's field
+value according to the field's type:
+[verse]
+--
+"field1_name=field1_value field2_name=field2_value ..."
+--
+It iterates all fields of the _event_, and calls _tep_print_field()_ for each of
+them.
+
+The _tep_print_num_field()_ function prints a numeric field with given format
+string. A search is performed in the _event_ for a field with _name_. If such
+field is found, its value is extracted from the _record_ and is printed in the
+_s_, according to the given format string _fmt_. If the argument _err_ is
+non-zero, and an error occures - it is printed in the _s_.
+
+The _tep_print_func_field()_ function prints a function field with given format
+string.  A search is performed in the _event_ for a field with _name_. If such
+field is found, its value is extracted from the _record_. The value is assumed
+to be a function address, and a search is perform to find the name of this
+function. The function name (if found) and its address are printed in the _s_,
+according to the given format string _fmt_. If the argument _err_ is non-zero,
+and an error occures - it is printed in _s_.
+
+RETURN VALUE
+------------
+The _tep_print_num_field()_ and _tep_print_func_field()_ functions return 1
+on success, -1 in case of an error or 0 if the print buffer _s_ is full.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+#include <trace-seq.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+struct trace_seq seq;
+trace_seq_init(&seq);
+struct tep_event *event = tep_find_event_by_name(tep, "timer", "hrtimer_start");
+...
+void process_record(struct tep_record *record)
+{
+	struct tep_format_field *field_pid = tep_find_common_field(event, "common_pid");
+
+	trace_seq_reset(&seq);
+
+	/* Print the value of "common_pid" */
+	tep_print_field(&seq, record->data, field_pid);
+
+	/* Print all fields of the "hrtimer_start" event */
+	tep_print_fields(&seq, record->data, record->size, event);
+
+	/* Print the value of "expires" field with custom format string */
+	tep_print_num_field(&seq, " timer expires in %llu ", event, "expires", record, 0);
+
+	/* Print the address and the name of "function" field with custom format string */
+	tep_print_func_field(&seq, " timer function is %s ", event, "function", record, 0);
+ }
+ ...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*trace-seq.h*
+	Header file to include in order to have access to trace sequences related APIs.
+	Trace sequences are used to allow a function to call several other functions
+	to create a string of data to use.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-field_read.txt b/tools/lib/traceevent/Documentation/libtraceevent-field_read.txt
new file mode 100644
index 0000000..64e9e25
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-field_read.txt
@@ -0,0 +1,81 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_read_number_field - Reads a number from raw data.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_read_number_field*(struct tep_format_field pass:[*]_field_, const void pass:[*]_data_, unsigned long long pass:[*]_value_);
+--
+
+DESCRIPTION
+-----------
+The _tep_read_number_field()_ function reads the value of the _field_ from the
+raw _data_ and stores it in the _value_. The function sets the _value_ according
+to the endianness of the raw data and the current machine and stores it in
+_value_.
+
+RETURN VALUE
+------------
+The _tep_read_number_field()_ function retunrs 0 in case of success, or -1 in
+case of an error.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+struct tep_event *event = tep_find_event_by_name(tep, "timer", "hrtimer_start");
+...
+void process_record(struct tep_record *record)
+{
+	unsigned long long pid;
+	struct tep_format_field *field_pid = tep_find_common_field(event, "common_pid");
+
+	if (tep_read_number_field(field_pid, record->data, &pid) != 0) {
+		/* Failed to get "common_pid" value */
+	}
+}
+...
+--
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-fields.txt b/tools/lib/traceevent/Documentation/libtraceevent-fields.txt
new file mode 100644
index 0000000..1ccb531
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-fields.txt
@@ -0,0 +1,105 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_event_common_fields, tep_event_fields - Get a list of fields for an event.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+struct tep_format_field pass:[*]pass:[*]*tep_event_common_fields*(struct tep_event pass:[*]_event_);
+struct tep_format_field pass:[*]pass:[*]*tep_event_fields*(struct tep_event pass:[*]_event_);
+--
+
+DESCRIPTION
+-----------
+The _tep_event_common_fields()_ function returns an array of pointers to common
+fields for the _event_. The array is allocated in the function and must be freed
+by free(). The last element of the array is NULL.
+
+The _tep_event_fields()_ function returns an array of pointers to event specific
+fields for the _event_. The array is allocated in the function and must be freed
+by free(). The last element of the array is NULL.
+
+RETURN VALUE
+------------
+Both _tep_event_common_fields()_ and _tep_event_fields()_ functions return
+an array of pointers to tep_format_field structures in case of success, or
+NULL in case of an error.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+int i;
+struct tep_format_field **fields;
+struct tep_event *event = tep_find_event_by_name(tep, "kvm", "kvm_exit");
+if (event != NULL) {
+	fields = tep_event_common_fields(event);
+	if (fields != NULL) {
+		i = 0;
+		while (fields[i]) {
+			/*
+			  walk through the list of the common fields
+			  of the kvm_exit event
+			*/
+			i++;
+		}
+		free(fields);
+	}
+	fields = tep_event_fields(event);
+	if (fields != NULL) {
+		i = 0;
+		while (fields[i]) {
+			/*
+			  walk through the list of the event specific
+			  fields of the kvm_exit event
+			*/
+			i++;
+		}
+		free(fields);
+	}
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-file_endian.txt b/tools/lib/traceevent/Documentation/libtraceevent-file_endian.txt
new file mode 100644
index 0000000..f401ad3
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-file_endian.txt
@@ -0,0 +1,91 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_is_file_bigendian, tep_set_file_bigendian - Get / set the endianness of the
+raw data being accessed by the tep handler.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+enum *tep_endian* {
+	TEP_LITTLE_ENDIAN = 0,
+	TEP_BIG_ENDIAN
+};
+
+bool *tep_is_file_bigendian*(struct tep_handle pass:[*]_tep_);
+void *tep_set_file_bigendian*(struct tep_handle pass:[*]_tep_, enum tep_endian _endian_);
+
+--
+DESCRIPTION
+-----------
+The _tep_is_file_bigendian()_ function gets the endianness of the raw data,
+being accessed by the tep handler. The _tep_ argument is trace event parser
+context.
+
+The _tep_set_file_bigendian()_ function sets the endianness of raw data being
+accessed by the tep handler. The _tep_ argument is trace event parser context.
+[verse]
+--
+The _endian_ argument is the endianness:
+	_TEP_LITTLE_ENDIAN_ - the raw data is in little endian format,
+	_TEP_BIG_ENDIAN_ - the raw data is in big endian format.
+--
+RETURN VALUE
+------------
+The _tep_is_file_bigendian()_ function returns true if the data is in bigendian
+format, false otherwise.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+	tep_set_file_bigendian(tep, TEP_LITTLE_ENDIAN);
+...
+	if (tep_is_file_bigendian(tep)) {
+		/* The raw data is in big endian */
+	} else {
+		/* The raw data is in little endian */
+	}
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-filter.txt b/tools/lib/traceevent/Documentation/libtraceevent-filter.txt
new file mode 100644
index 0000000..4a9962d
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-filter.txt
@@ -0,0 +1,209 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_filter_alloc, tep_filter_free, tep_filter_reset, tep_filter_make_string,
+tep_filter_copy, tep_filter_compare, tep_filter_match, tep_event_filtered,
+tep_filter_remove_event, tep_filter_strerror, tep_filter_add_filter_str -
+Event filter related APIs.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+struct tep_event_filter pass:[*]*tep_filter_alloc*(struct tep_handle pass:[*]_tep_);
+void *tep_filter_free*(struct tep_event_filter pass:[*]_filter_);
+void *tep_filter_reset*(struct tep_event_filter pass:[*]_filter_);
+enum tep_errno *tep_filter_add_filter_str*(struct tep_event_filter pass:[*]_filter_, const char pass:[*]_filter_str_);
+int *tep_event_filtered*(struct tep_event_filter pass:[*]_filter_, int _event_id_);
+int *tep_filter_remove_event*(struct tep_event_filter pass:[*]_filter_, int _event_id_);
+enum tep_errno *tep_filter_match*(struct tep_event_filter pass:[*]_filter_, struct tep_record pass:[*]_record_);
+int *tep_filter_copy*(struct tep_event_filter pass:[*]_dest_, struct tep_event_filter pass:[*]_source_);
+int *tep_filter_compare*(struct tep_event_filter pass:[*]_filter1_, struct tep_event_filter pass:[*]_filter2_);
+char pass:[*]*tep_filter_make_string*(struct tep_event_filter pass:[*]_filter_, int _event_id_);
+int *tep_filter_strerror*(struct tep_event_filter pass:[*]_filter_, enum tep_errno _err_, char pass:[*]buf, size_t _buflen_);
+--
+
+DESCRIPTION
+-----------
+Filters can be attached to traced events. They can be used to filter out various
+events when outputting them. Each event can be filtered based on its parameters,
+described in the event's format file. This set of functions can be used to
+create, delete, modify and attach event filters.
+
+The _tep_filter_alloc()_ function creates a new event filter. The _tep_ argument
+is the trace event parser context.
+
+The _tep_filter_free()_ function frees an event filter and all resources that it
+had used.
+
+The _tep_filter_reset()_ function removes all rules from an event filter and
+resets it.
+
+The _tep_filter_add_filter_str()_ function adds a new rule to the _filter_. The
+_filter_str_ argument is the filter string, that contains the rule.
+
+The _tep_event_filtered()_ function checks if the event with _event_id_ has
+_filter_.
+
+The _tep_filter_remove_event()_ function removes a _filter_ for an event with
+_event_id_.
+
+The _tep_filter_match()_ function tests if a _record_ matches given _filter_.
+
+The _tep_filter_copy()_ function copies a _source_ filter into a _dest_ filter.
+
+The _tep_filter_compare()_ function compares two filers - _filter1_ and _filter2_.
+
+The _tep_filter_make_string()_ function constructs a string, displaying
+the _filter_ contents for given _event_id_.
+
+The _tep_filter_strerror()_ function copies the _filter_ error buffer into the
+given _buf_ with the size _buflen_. If the error buffer is empty, in the _buf_
+is copied a string, describing the error _err_.
+
+RETURN VALUE
+------------
+The _tep_filter_alloc()_ function returns a pointer to the newly created event
+filter, or NULL in case of an error.
+
+The _tep_filter_add_filter_str()_ function returns 0 if the rule was
+successfully added or a negative error code.  Use _tep_filter_strerror()_ to see
+actual error message in case of an error.
+
+The _tep_event_filtered()_ function returns 1 if the filter is found for given
+event, or 0 otherwise.
+
+The _tep_filter_remove_event()_ function returns 1 if the vent was removed, or
+0 if the event was not found.
+
+The _tep_filter_match()_ function returns _tep_errno_, according to the result:
+[verse]
+--
+_pass:[TEP_ERRNO__FILTER_MATCH]_	- filter found for event, the record matches.
+_pass:[TEP_ERRNO__FILTER_MISS]_		- filter found for event, the record does not match.
+_pass:[TEP_ERRNO__FILTER_NOT_FOUND]_	- no filter found for record's event.
+_pass:[TEP_ERRNO__NO_FILTER]_		- no rules in the filter.
+--
+or any other _tep_errno_, if an error occurred during the test.
+
+The _tep_filter_copy()_ function returns 0 on success or -1 if not all rules
+ were copied.
+
+The _tep_filter_compare()_ function returns 1 if the two filters hold the same
+content, or 0 if they do not.
+
+The _tep_filter_make_string()_ function returns a string, which must be freed
+with free(), or NULL in case of an error.
+
+The _tep_filter_strerror()_ function returns 0 if message was filled
+successfully, or -1 in case of an error.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+char errstr[200];
+int ret;
+
+struct tep_event_filter *filter = tep_filter_alloc(tep);
+struct tep_event_filter *filter1 = tep_filter_alloc(tep);
+ret = tep_filter_add_filter_str(filter, "sched/sched_wakeup:target_cpu==1");
+if(ret < 0) {
+	tep_filter_strerror(filter, ret, errstr, sizeof(errstr));
+	/* Failed to add a new rule to the filter, the error string is in errstr */
+}
+if (tep_filter_copy(filter1, filter) != 0) {
+	/* Failed to copy filter in filter1 */
+}
+...
+if (tep_filter_compare(filter, filter1) != 1) {
+	/* Both filters are different */
+}
+...
+void process_record(struct tep_handle *tep, struct tep_record *record)
+{
+	struct tep_event *event;
+	char *fstring;
+
+	event = tep_find_event_by_record(tep, record);
+
+	if (tep_event_filtered(filter, event->id) == 1) {
+		/* The event has filter */
+		fstring = tep_filter_make_string(filter, event->id);
+		if (fstring != NULL) {
+			/* The filter for the event is in fstring */
+			free(fstring);
+		}
+	}
+
+	switch (tep_filter_match(filter, record)) {
+	case TEP_ERRNO__FILTER_MATCH:
+		/* The filter matches the record */
+		break;
+	case TEP_ERRNO__FILTER_MISS:
+		/* The filter does not match the record */
+		break;
+	case TEP_ERRNO__FILTER_NOT_FOUND:
+		/* No filter found for record's event */
+		break;
+	case TEP_ERRNO__NO_FILTER:
+		/* There are no rules in the filter */
+		break
+	default:
+		/* An error occurred during the test */
+		break;
+	}
+
+	if (tep_filter_remove_event(filter, event->id) == 1) {
+		/* The event was removed from the filter */
+	}
+}
+
+...
+tep_filter_reset(filter);
+...
+tep_filter_free(filter);
+tep_filter_free(filter1);
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-func_apis.txt b/tools/lib/traceevent/Documentation/libtraceevent-func_apis.txt
new file mode 100644
index 0000000..38bfea3
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-func_apis.txt
@@ -0,0 +1,183 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_find_function, tep_find_function_address, tep_set_function_resolver,
+tep_reset_function_resolver, tep_register_function, tep_register_print_string -
+function related tep APIs
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+typedef char pass:[*](*tep_func_resolver_t*)(void pass:[*]_priv_, unsigned long long pass:[*]_addrp_, char pass:[**]_modp_);
+int *tep_set_function_resolver*(struct tep_handle pass:[*]_tep_, tep_func_resolver_t pass:[*]_func_, void pass:[*]_priv_);
+void *tep_reset_function_resolver*(struct tep_handle pass:[*]_tep_);
+const char pass:[*]*tep_find_function*(struct tep_handle pass:[*]_tep_, unsigned long long _addr_);
+unsigned long long *tep_find_function_address*(struct tep_handle pass:[*]_tep_, unsigned long long _addr_);
+int *tep_register_function*(struct tep_handle pass:[*]_tep_, char pass:[*]_name_, unsigned long long _addr_, char pass:[*]_mod_);
+int *tep_register_print_string*(struct tep_handle pass:[*]_tep_, const char pass:[*]_fmt_, unsigned long long _addr_);
+--
+
+DESCRIPTION
+-----------
+Some tools may have already a way to resolve the kernel functions. These APIs
+allow them to keep using it instead of duplicating all the entries inside.
+
+The _tep_func_resolver_t_ type is the prototype of the alternative kernel
+functions resolver. This function receives a pointer to its custom context
+(set with the _tep_set_function_resolver()_ call ) and the address of a kernel
+function, which has to be resolved. In case of success, it should return
+the name of the function and its module (if any) in _modp_.
+
+The _tep_set_function_resolver()_ function registers _func_ as an alternative
+kernel functions resolver. The _tep_ argument is trace event parser context.
+The _priv_ argument is a custom context of the _func_ function. The function
+resolver is used by the APIs _tep_find_function()_,
+_tep_find_function_address()_, and _tep_print_func_field()_ to resolve
+a function address to a function name.
+
+The _tep_reset_function_resolver()_ function resets the kernel functions
+resolver to the default function.  The _tep_ argument is trace event parser
+context.
+
+
+These APIs can be used to find function name and start address, by given
+address. The given address does not have to be exact, it will select
+the function that would contain it.
+
+The _tep_find_function()_ function returns the function name, which contains the
+given address _addr_. The _tep_ argument is the trace event parser context.
+
+The _tep_find_function_address()_ function returns the function start address,
+by given address _addr_. The _addr_ does not have to be exact, it will select
+the function that would contain it. The _tep_ argument is the trace event
+parser context.
+
+The _tep_register_function()_ function registers a function name mapped to an
+address and (optional) module. This mapping is used in case the function tracer
+or events have "%pF" or "%pS" parameter in its format string. It is common to
+pass in the kallsyms function names with their corresponding addresses with this
+function. The _tep_ argument is the trace event parser context. The _name_ is
+the name of the function, the string is copied internally. The _addr_ is
+the start address of the function. The _mod_ is the kernel module
+the function may be in (NULL for none).
+
+The _tep_register_print_string()_ function  registers a string by the address
+it was stored in the kernel. Some strings internal to the kernel with static
+address are passed to certain events. The "%s" in the event's format field
+which has an address needs to know what string would be at that address. The
+tep_register_print_string() supplies the parsing with the mapping between kernel
+addresses and those strings. The _tep_ argument is the trace event parser
+context. The _fmt_ is the string to register, it is copied internally.
+The _addr_ is the address the string was located at.
+
+
+RETURN VALUE
+------------
+The _tep_set_function_resolver()_ function returns 0 in case of success, or -1
+in case of an error.
+
+The _tep_find_function()_ function returns the function name, or NULL in case
+it cannot be found.
+
+The _tep_find_function_address()_ function returns the function start address,
+or 0 in case it cannot be found.
+
+The _tep_register_function()_ function returns 0 in case of success. In case of
+an error -1 is returned, and errno is set to the appropriate error number.
+
+The _tep_register_print_string()_ function returns 0 in case of success. In case
+of an error -1 is returned, and errno is set to the appropriate error number.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+char *my_resolve_kernel_addr(void *context,
+			     unsigned long long *addrp, char **modp)
+{
+	struct db *function_database = context;
+	struct symbol *sym = sql_lookup(function_database, *addrp);
+
+	if (!sym)
+		return NULL;
+
+	*modp = sym->module_name;
+	return sym->name;
+}
+
+void show_function( unsigned long long addr)
+{
+	unsigned long long fstart;
+	const char *fname;
+
+	if (tep_set_function_resolver(tep, my_resolve_kernel_addr,
+				      function_database) != 0) {
+		/* failed to register my_resolve_kernel_addr */
+	}
+
+	/* These APIs use my_resolve_kernel_addr() to resolve the addr */
+	fname = tep_find_function(tep, addr);
+	fstart = tep_find_function_address(tep, addr);
+
+	/*
+	   addr is in function named fname, starting at fstart address,
+	   at offset (addr - fstart)
+	*/
+
+	tep_reset_function_resolver(tep);
+
+}
+...
+	if (tep_register_function(tep, "kvm_exit",
+				(unsigned long long) 0x12345678, "kvm") != 0) {
+		/* Failed to register kvm_exit address mapping */
+	}
+...
+	if (tep_register_print_string(tep, "print string",
+				(unsigned long long) 0x87654321, NULL) != 0) {
+		/* Failed to register "print string" address mapping */
+	}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-func_find.txt b/tools/lib/traceevent/Documentation/libtraceevent-func_find.txt
new file mode 100644
index 0000000..04840e2
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-func_find.txt
@@ -0,0 +1,88 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_find_function,tep_find_function_address - Find function name / start address.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+const char pass:[*]*tep_find_function*(struct tep_handle pass:[*]_tep_, unsigned long long _addr_);
+unsigned long long *tep_find_function_address*(struct tep_handle pass:[*]_tep_, unsigned long long _addr_);
+--
+
+DESCRIPTION
+-----------
+These functions can be used to find function name and start address, by given
+address. The given address does not have to be exact, it will select the function
+that would contain it.
+
+The _tep_find_function()_ function returns the function name, which contains the
+given address _addr_. The _tep_ argument is the trace event parser context.
+
+The _tep_find_function_address()_ function returns the function start address,
+by given address _addr_. The _addr_ does not have to be exact, it will select the
+function that would contain it. The _tep_ argument is the trace event parser context.
+
+RETURN VALUE
+------------
+The _tep_find_function()_ function returns the function name, or NULL in case
+it cannot be found.
+
+The _tep_find_function_address()_ function returns the function start address,
+or 0 in case it cannot be found.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+void show_function( unsigned long long addr)
+{
+	const char *fname = tep_find_function(tep, addr);
+	unsigned long long fstart = tep_find_function_address(tep, addr);
+
+	/* addr is in function named fname, starting at fstart address, at offset (addr - fstart) */
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-handle.txt b/tools/lib/traceevent/Documentation/libtraceevent-handle.txt
new file mode 100644
index 0000000..8d56831
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-handle.txt
@@ -0,0 +1,101 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_alloc, tep_free,tep_ref, tep_unref,tep_ref_get - Create, destroy, manage
+references of trace event parser context.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+struct tep_handle pass:[*]*tep_alloc*(void);
+void *tep_free*(struct tep_handle pass:[*]_tep_);
+void *tep_ref*(struct tep_handle pass:[*]_tep_);
+void *tep_unref*(struct tep_handle pass:[*]_tep_);
+int *tep_ref_get*(struct tep_handle pass:[*]_tep_);
+--
+
+DESCRIPTION
+-----------
+These are the main functions to create and destroy tep_handle - the main
+structure, representing the trace event parser context. This context is used as
+the input parameter of most library APIs.
+
+The _tep_alloc()_ function allocates and initializes the tep context.
+
+The _tep_free()_ function will decrement the reference of the _tep_ handler.
+When there is no more references, then it will free the handler, as well
+as clean up all its resources that it had used. The argument _tep_ is
+the pointer to the trace event parser context.
+
+The _tep_ref()_ function adds a reference to the _tep_ handler.
+
+The _tep_unref()_ function removes a reference from the _tep_ handler. When
+the last reference is removed, the _tep_ is destroyed, and all resources that
+it had used are cleaned up.
+
+The _tep_ref_get()_ functions gets the current references of the _tep_ handler.
+
+RETURN VALUE
+------------
+_tep_alloc()_ returns a pointer to a newly created tep_handle structure.
+NULL is returned in case there is not enough free memory to allocate it.
+
+_tep_ref_get()_ returns the current references of _tep_.
+If _tep_ is NULL, 0 is returned.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+
+...
+struct tep_handle *tep = tep_alloc();
+...
+int ref = tep_ref_get(tep);
+tep_ref(tep);
+if ( (ref+1) != tep_ref_get(tep)) {
+	/* Something wrong happened, the counter is not incremented by 1 */
+}
+tep_unref(tep);
+...
+tep_free(tep);
+...
+--
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-header_page.txt b/tools/lib/traceevent/Documentation/libtraceevent-header_page.txt
new file mode 100644
index 0000000..615d117
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-header_page.txt
@@ -0,0 +1,102 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_get_header_page_size, tep_get_header_timestamp_size, tep_is_old_format -
+Get the data stored in the header page, in kernel context.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_get_header_page_size*(struct tep_handle pass:[*]_tep_);
+int *tep_get_header_timestamp_size*(struct tep_handle pass:[*]_tep_);
+bool *tep_is_old_format*(struct tep_handle pass:[*]_tep_);
+--
+DESCRIPTION
+-----------
+These functions retrieve information from kernel context, stored in tracefs
+events/header_page. Old kernels do not have header page info, so default values
+from user space context are used.
+
+The _tep_get_header_page_size()_ function returns the size of a long integer,
+in kernel context. The _tep_ argument is trace event parser context.
+This information is retrieved from tracefs events/header_page, "commit" field.
+
+The _tep_get_header_timestamp_size()_ function returns the size of timestamps,
+in kernel context. The _tep_ argument is trace event parser context. This
+information is retrieved from tracefs events/header_page, "timestamp" field.
+
+The _tep_is_old_format()_ function returns true if the kernel predates
+the addition of events/header_page, otherwise it returns false.
+
+RETURN VALUE
+------------
+The _tep_get_header_page_size()_ function returns the size of a long integer,
+in bytes.
+
+The _tep_get_header_timestamp_size()_ function returns the size of timestamps,
+in bytes.
+
+The _tep_is_old_format()_ function returns true, if an old kernel is used to
+generate the tracing data, which has no event/header_page. If the kernel is new,
+or _tep_ is NULL, false is returned.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+	int longsize;
+	int timesize;
+	bool old;
+
+	longsize = tep_get_header_page_size(tep);
+	timesize = tep_get_header_timestamp_size(tep);
+	old = tep_is_old_format(tep);
+
+	printf ("%s kernel is used to generate the tracing data.\n",
+		old?"Old":"New");
+	printf("The size of a long integer is %d bytes.\n", longsize);
+	printf("The timestamps size is %d bytes.\n", timesize);
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-host_endian.txt b/tools/lib/traceevent/Documentation/libtraceevent-host_endian.txt
new file mode 100644
index 0000000..d5d375e
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-host_endian.txt
@@ -0,0 +1,104 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_is_bigendian, tep_is_local_bigendian, tep_set_local_bigendian - Get / set
+the endianness of the local machine.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+enum *tep_endian* {
+	TEP_LITTLE_ENDIAN = 0,
+	TEP_BIG_ENDIAN
+};
+
+int *tep_is_bigendian*(void);
+bool *tep_is_local_bigendian*(struct tep_handle pass:[*]_tep_);
+void *tep_set_local_bigendian*(struct tep_handle pass:[*]_tep_, enum tep_endian _endian_);
+--
+
+DESCRIPTION
+-----------
+
+The _tep_is_bigendian()_ gets the endianness of the machine, executing
+the function.
+
+The _tep_is_local_bigendian()_ function gets the endianness of the local
+machine, saved in the _tep_ handler. The _tep_ argument is the trace event
+parser context. This API is a bit faster than _tep_is_bigendian()_, as it
+returns cached endianness of the local machine instead of checking it each time.
+
+The _tep_set_local_bigendian()_ function sets the endianness of the local
+machine in the _tep_ handler. The _tep_ argument is trace event parser context.
+The _endian_ argument is the endianness:
+[verse]
+--
+	_TEP_LITTLE_ENDIAN_ - the machine is little endian,
+	_TEP_BIG_ENDIAN_ - the machine is big endian.
+--
+
+RETURN VALUE
+------------
+The _tep_is_bigendian()_ function returns non zero if the endianness of the
+machine, executing the code, is big endian and zero otherwise.
+
+The _tep_is_local_bigendian()_ function returns true, if the endianness of the
+local machine, saved in the _tep_ handler, is big endian, or false otherwise.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+	if (tep_is_bigendian())
+		tep_set_local_bigendian(tep, TEP_BIG_ENDIAN);
+	else
+		tep_set_local_bigendian(tep, TEP_LITTLE_ENDIAN);
+...
+	if (tep_is_local_bigendian(tep))
+		printf("This machine you are running on is bigendian\n");
+	else
+		printf("This machine you are running on is little endian\n");
+
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-long_size.txt b/tools/lib/traceevent/Documentation/libtraceevent-long_size.txt
new file mode 100644
index 0000000..01d78ea
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-long_size.txt
@@ -0,0 +1,78 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_get_long_size, tep_set_long_size - Get / set the size of a long integer on
+the machine, where the trace is generated, in bytes
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_get_long_size*(strucqt tep_handle pass:[*]_tep_);
+void *tep_set_long_size*(struct tep_handle pass:[*]_tep_, int _long_size_);
+--
+
+DESCRIPTION
+-----------
+The _tep_get_long_size()_ function returns the size of a long integer on the machine,
+where the trace is generated. The _tep_ argument is trace event parser context.
+
+The _tep_set_long_size()_ function sets the size of a long integer on the machine,
+where the trace is generated. The _tep_ argument is trace event parser context.
+The _long_size_ is the size of a long integer, in bytes.
+
+RETURN VALUE
+------------
+The _tep_get_long_size()_ function returns the size of a long integer on the machine,
+where the trace is generated, in bytes.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+tep_set_long_size(tep, 4);
+...
+int long_size = tep_get_long_size(tep);
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-page_size.txt b/tools/lib/traceevent/Documentation/libtraceevent-page_size.txt
new file mode 100644
index 0000000..452c0cf
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-page_size.txt
@@ -0,0 +1,82 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_get_page_size, tep_set_page_size - Get / set the size of a memory page on
+the machine, where the trace is generated
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_get_page_size*(struct tep_handle pass:[*]_tep_);
+void *tep_set_page_size*(struct tep_handle pass:[*]_tep_, int _page_size_);
+--
+
+DESCRIPTION
+-----------
+The _tep_get_page_size()_ function returns the size of a memory page on
+the machine, where the trace is generated. The _tep_ argument is trace
+event parser context.
+
+The _tep_set_page_size()_ function stores in the _tep_ context the size of a
+memory page on the machine, where the trace is generated.
+The _tep_ argument is trace event parser context.
+The _page_size_ argument is the size of a memory page, in bytes.
+
+RETURN VALUE
+------------
+The _tep_get_page_size()_ function returns size of the memory page, in bytes.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <unistd.h>
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+	int page_size = getpagesize();
+
+	tep_set_page_size(tep, page_size);
+
+	printf("The page size for this machine is %d\n", tep_get_page_size(tep));
+
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-parse_event.txt b/tools/lib/traceevent/Documentation/libtraceevent-parse_event.txt
new file mode 100644
index 0000000..f248114
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-parse_event.txt
@@ -0,0 +1,90 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_parse_event, tep_parse_format - Parse the event format information
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+enum tep_errno *tep_parse_event*(struct tep_handle pass:[*]_tep_, const char pass:[*]_buf_, unsigned long _size_, const char pass:[*]_sys_);
+enum tep_errno *tep_parse_format*(struct tep_handle pass:[*]_tep_, struct tep_event pass:[*]pass:[*]_eventp_, const char pass:[*]_buf_, unsigned long _size_, const char pass:[*]_sys_);
+--
+
+DESCRIPTION
+-----------
+The _tep_parse_event()_ function parses the event format and creates an event
+structure to quickly parse raw data for a given event. The _tep_ argument is
+the trace event parser context. The created event structure is stored in the
+_tep_ context. The _buf_ argument is a buffer with _size_, where the event
+format data is. The event format data can be taken from
+tracefs/events/.../.../format files. The _sys_ argument is the system of
+the event.
+
+The _tep_parse_format()_ function does the same as _tep_parse_event()_. The only
+difference is in the extra _eventp_ argument, where the newly created event
+structure is returned.
+
+RETURN VALUE
+------------
+Both _tep_parse_event()_ and _tep_parse_format()_ functions return 0 on success,
+or TEP_ERRNO__... in case of an error.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+char *buf;
+int size;
+struct tep_event *event = NULL;
+buf = read_file("/sys/kernel/tracing/events/ftrace/print/format", &size);
+if (tep_parse_event(tep, buf, size, "ftrace") != 0) {
+	/* Failed to parse the ftrace print format */
+}
+
+if (tep_parse_format(tep, &event, buf, size, "ftrace") != 0) {
+	/* Failed to parse the ftrace print format */
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-parse_head.txt b/tools/lib/traceevent/Documentation/libtraceevent-parse_head.txt
new file mode 100644
index 0000000..c90f16c
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-parse_head.txt
@@ -0,0 +1,82 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_parse_header_page - Parses the data stored in the header page.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_parse_header_page*(struct tep_handle pass:[*]_tep_, char pass:[*]_buf_, unsigned long _size_, int _long_size_);
+--
+
+DESCRIPTION
+-----------
+The _tep_parse_header_page()_ function parses the header page data from _buf_,
+and initializes the _tep_, trace event parser context, with it. The buffer
+_buf_ is with _size_, and is supposed to be copied from
+tracefs/events/header_page.
+
+Some old kernels do not have header page info, in this case the
+_tep_parse_header_page()_ function  can be called with _size_ equal to 0. The
+_tep_ context is initialized with default values. The _long_size_ can be used in
+this use case, to set the size of a long integer to be used.
+
+RETURN VALUE
+------------
+The _tep_parse_header_page()_ function returns 0 in case of success, or -1
+in case of an error.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+char *buf;
+int size;
+buf = read_file("/sys/kernel/tracing/events/header_page", &size);
+if (tep_parse_header_page(tep, buf, size, sizeof(unsigned long)) != 0) {
+	/* Failed to parse the header page */
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-record_parse.txt b/tools/lib/traceevent/Documentation/libtraceevent-record_parse.txt
new file mode 100644
index 0000000..e9a6911
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-record_parse.txt
@@ -0,0 +1,137 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_data_type, tep_data_pid,tep_data_preempt_count, tep_data_flags -
+Extract common fields from a record.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+enum *trace_flag_type* {
+	_TRACE_FLAG_IRQS_OFF_,
+	_TRACE_FLAG_IRQS_NOSUPPORT_,
+	_TRACE_FLAG_NEED_RESCHED_,
+	_TRACE_FLAG_HARDIRQ_,
+	_TRACE_FLAG_SOFTIRQ_,
+};
+
+int *tep_data_type*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_rec_);
+int *tep_data_pid*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_rec_);
+int *tep_data_preempt_count*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_rec_);
+int *tep_data_flags*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_rec_);
+--
+
+DESCRIPTION
+-----------
+This set of functions can be used to extract common fields from a record.
+
+The _tep_data_type()_ function gets the event id from the record _rec_.
+It reads the "common_type" field. The _tep_ argument is the trace event parser
+context.
+
+The _tep_data_pid()_ function gets the process id from the record _rec_.
+It reads the "common_pid" field. The _tep_ argument is the trace event parser
+context.
+
+The _tep_data_preempt_count()_ function gets the preemption count from the
+record _rec_. It reads the "common_preempt_count" field. The _tep_ argument is
+the trace event parser context.
+
+The _tep_data_flags()_ function gets the latency flags from the record _rec_.
+It reads the "common_flags" field. The _tep_ argument is the trace event parser
+context. Supported latency flags are:
+[verse]
+--
+	_TRACE_FLAG_IRQS_OFF_,		Interrupts are disabled.
+	_TRACE_FLAG_IRQS_NOSUPPORT_,	Reading IRQ flag is not supported by the architecture.
+	_TRACE_FLAG_NEED_RESCHED_,	Task needs rescheduling.
+	_TRACE_FLAG_HARDIRQ_,		Hard IRQ is running.
+	_TRACE_FLAG_SOFTIRQ_,		Soft IRQ is running.
+--
+
+RETURN VALUE
+------------
+The _tep_data_type()_ function returns an integer, representing the event id.
+
+The _tep_data_pid()_ function returns an integer, representing the process id
+
+The _tep_data_preempt_count()_ function returns an integer, representing the
+preemption count.
+
+The _tep_data_flags()_ function returns an integer, representing the latency
+flags. Look at the _trace_flag_type_ enum for supported flags.
+
+All these functions in case of an error return a negative integer.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+void process_record(struct tep_record *record)
+{
+	int data;
+
+	data = tep_data_type(tep, record);
+	if (data >= 0) {
+		/* Got the ID of the event */
+	}
+
+	data = tep_data_pid(tep, record);
+	if (data >= 0) {
+		/* Got the process ID */
+	}
+
+	data = tep_data_preempt_count(tep, record);
+	if (data >= 0) {
+		/* Got the preemption count */
+	}
+
+	data = tep_data_flags(tep, record);
+	if (data >= 0) {
+		/* Got the latency flags */
+	}
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-reg_event_handler.txt b/tools/lib/traceevent/Documentation/libtraceevent-reg_event_handler.txt
new file mode 100644
index 0000000..53d37d7
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-reg_event_handler.txt
@@ -0,0 +1,156 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_register_event_handler, tep_unregister_event_handler -  Register /
+unregisters a callback function to parse an event information.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+enum *tep_reg_handler* {
+	_TEP_REGISTER_SUCCESS_,
+	_TEP_REGISTER_SUCCESS_OVERWRITE_,
+};
+
+int *tep_register_event_handler*(struct tep_handle pass:[*]_tep_, int _id_, const char pass:[*]_sys_name_, const char pass:[*]_event_name_, tep_event_handler_func _func_, void pass:[*]_context_);
+int *tep_unregister_event_handler*(struct tep_handle pass:[*]tep, int id, const char pass:[*]sys_name, const char pass:[*]event_name, tep_event_handler_func func, void pass:[*]_context_);
+
+typedef int (*pass:[*]tep_event_handler_func*)(struct trace_seq pass:[*]s, struct tep_record pass:[*]record, struct tep_event pass:[*]event, void pass:[*]context);
+--
+
+DESCRIPTION
+-----------
+The _tep_register_event_handler()_ function registers a handler function,
+which is going to be called to parse the information for a given event.
+The _tep_ argument is the trace event parser context. The _id_ argument is
+the id of the event. The _sys_name_ argument is the name of the system,
+the event belongs to. The _event_name_ argument is the name of the event.
+If _id_ is >= 0, it is used to find the event, otherwise _sys_name_ and
+_event_name_ are used. The _func_ is a pointer to the function, which is going
+to be called to parse the event information. The _context_ argument is a pointer
+to the context data, which will be passed to the _func_. If a handler function
+for the same event is already registered, it will be overridden with the new
+one. This mechanism allows a developer to override the parsing of a given event.
+If for some reason the default print format is not sufficient, the developer
+can register a function for an event to be used to parse the data instead.
+
+The _tep_unregister_event_handler()_ function unregisters the handler function,
+previously registered with _tep_register_event_handler()_. The _tep_ argument
+is the trace event parser context. The _id_, _sys_name_, _event_name_, _func_,
+and _context_ are the same arguments, as when the callback function _func_ was
+registered.
+
+The _tep_event_handler_func_ is the type of the custom event handler
+function. The _s_ argument is the trace sequence, it can be used to create a
+custom string, describing the event. A _record_  to get the event from is passed
+as input parameter and also the _event_ - the handle to the record's event. The
+_context_ is custom context, set when the custom event handler is registered.
+
+RETURN VALUE
+------------
+The _tep_register_event_handler()_ function returns _TEP_REGISTER_SUCCESS_
+if the new handler is registered successfully or
+_TEP_REGISTER_SUCCESS_OVERWRITE_ if an existing handler is overwritten.
+If there is not  enough memory to complete the registration,
+TEP_ERRNO__MEM_ALLOC_FAILED is returned.
+
+The _tep_unregister_event_handler()_ function returns 0 if _func_ was removed
+successful or, -1 if the event was not found.
+
+The _tep_event_handler_func_ should return -1 in case of an error,
+or 0 otherwise.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+#include <trace-seq.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+int timer_expire_handler(struct trace_seq *s, struct tep_record *record,
+			 struct tep_event *event, void *context)
+{
+	trace_seq_printf(s, "hrtimer=");
+
+	if (tep_print_num_field(s, "0x%llx", event, "timer", record, 0) == -1)
+		tep_print_num_field(s, "0x%llx", event, "hrtimer", record, 1);
+
+	trace_seq_printf(s, " now=");
+
+	tep_print_num_field(s, "%llu", event, "now", record, 1);
+
+	tep_print_func_field(s, " function=%s", event, "function", record, 0);
+
+	return 0;
+}
+...
+	int ret;
+
+	ret = tep_register_event_handler(tep, -1, "timer", "hrtimer_expire_entry",
+					 timer_expire_handler, NULL);
+	if (ret < 0) {
+		char buf[32];
+
+		tep_strerror(tep, ret, buf, 32)
+		printf("Failed to register handler for hrtimer_expire_entry: %s\n", buf);
+	} else {
+		switch (ret) {
+		case TEP_REGISTER_SUCCESS:
+			printf ("Registered handler for hrtimer_expire_entry\n");
+			break;
+		case TEP_REGISTER_SUCCESS_OVERWRITE:
+			printf ("Overwrote handler for hrtimer_expire_entry\n");
+			break;
+		}
+	}
+...
+	ret = tep_unregister_event_handler(tep, -1, "timer", "hrtimer_expire_entry",
+					   timer_expire_handler, NULL);
+	if ( ret )
+		printf ("Failed to unregister handler for hrtimer_expire_entry\n");
+
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*trace-seq.h*
+	Header file to include in order to have access to trace sequences
+	related APIs. Trace sequences are used to allow a function to call
+	several other functions to create a string of data to use.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-reg_print_func.txt b/tools/lib/traceevent/Documentation/libtraceevent-reg_print_func.txt
new file mode 100644
index 0000000..708dce9
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-reg_print_func.txt
@@ -0,0 +1,155 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_register_print_function,tep_unregister_print_function -
+Registers / Unregisters a helper function.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+enum *tep_func_arg_type* {
+	TEP_FUNC_ARG_VOID,
+	TEP_FUNC_ARG_INT,
+	TEP_FUNC_ARG_LONG,
+	TEP_FUNC_ARG_STRING,
+	TEP_FUNC_ARG_PTR,
+	TEP_FUNC_ARG_MAX_TYPES
+};
+
+typedef unsigned long long (*pass:[*]tep_func_handler*)(struct trace_seq pass:[*]s, unsigned long long pass:[*]args);
+
+int *tep_register_print_function*(struct tep_handle pass:[*]_tep_, tep_func_handler _func_, enum tep_func_arg_type _ret_type_, char pass:[*]_name_, _..._);
+int *tep_unregister_print_function*(struct tep_handle pass:[*]_tep_, tep_func_handler _func_, char pass:[*]_name_);
+--
+
+DESCRIPTION
+-----------
+Some events may have helper functions in the print format arguments.
+This allows a plugin to dynamically create a way to process one of
+these functions.
+
+The _tep_register_print_function()_ registers such helper function. The _tep_
+argument is the trace event parser context. The _func_ argument  is a pointer
+to the helper function. The _ret_type_ argument is  the return type of the
+helper function, value from the _tep_func_arg_type_ enum. The _name_ is the name
+of the helper function, as seen in the print format arguments. The _..._ is a
+variable list of _tep_func_arg_type_ enums, the _func_ function arguments.
+This list must end with _TEP_FUNC_ARG_VOID_. See 'EXAMPLE' section.
+
+The _tep_unregister_print_function()_ unregisters a helper function, previously
+registered with _tep_register_print_function()_. The _tep_ argument is the
+trace event parser context. The _func_ and _name_ arguments are the same, used
+when the helper function was registered.
+
+The _tep_func_handler_ is the type of the helper function. The _s_ argument is
+the trace sequence, it can be used to create a custom string.
+The _args_  is a list of arguments, defined when the helper function was
+registered.
+
+RETURN VALUE
+------------
+The _tep_register_print_function()_ function returns 0 in case of success.
+In case of an error, TEP_ERRNO_... code is returned.
+
+The _tep_unregister_print_function()_ returns 0 in case of success, or -1 in
+case of an error.
+
+EXAMPLE
+-------
+Some events have internal functions calls, that appear in the print format
+output. For example "tracefs/events/i915/g4x_wm/format" has:
+[source,c]
+--
+print fmt: "pipe %c, frame=%u, scanline=%u, wm %d/%d/%d, sr %s/%d/%d/%d, hpll %s/%d/%d/%d, fbc %s",
+	    ((REC->pipe) + 'A'), REC->frame, REC->scanline, REC->primary,
+	    REC->sprite, REC->cursor, yesno(REC->cxsr), REC->sr_plane,
+	    REC->sr_cursor, REC->sr_fbc, yesno(REC->hpll), REC->hpll_plane,
+	    REC->hpll_cursor, REC->hpll_fbc, yesno(REC->fbc)
+--
+Notice the call to function _yesno()_ in the print arguments. In the kernel
+context, this function has the following implementation:
+[source,c]
+--
+static const char *yesno(int x)
+{
+	static const char *yes = "yes";
+	static const char *no = "no";
+
+	return x ? yes : no;
+}
+--
+The user space event parser has no idea how to handle this _yesno()_ function.
+The _tep_register_print_function()_ API can be used to register a user space
+helper function, mapped to the kernel's _yesno()_:
+[source,c]
+--
+#include <event-parse.h>
+#include <trace-seq.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+static const char *yes_no_helper(int x)
+{
+	return x ? "yes" : "no";
+}
+...
+	if ( tep_register_print_function(tep,
+				    yes_no_helper,
+				    TEP_FUNC_ARG_STRING,
+				    "yesno",
+				    TEP_FUNC_ARG_INT,
+				    TEP_FUNC_ARG_VOID) != 0) {
+		/* Failed to register yes_no_helper function */
+	}
+
+/*
+   Now, when the event parser encounters this yesno() function, it will know
+   how to handle it.
+*/
+...
+	if (tep_unregister_print_function(tep, yes_no_helper, "yesno") != 0) {
+		/* Failed to unregister yes_no_helper function */
+	}
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*trace-seq.h*
+	Header file to include in order to have access to trace sequences
+	related APIs. Trace sequences are used to allow a function to call
+	several other functions to create a string of data to use.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-set_flag.txt b/tools/lib/traceevent/Documentation/libtraceevent-set_flag.txt
new file mode 100644
index 0000000..b059978
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-set_flag.txt
@@ -0,0 +1,104 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_set_flag, tep_clear_flag, tep_test_flag -
+Manage flags of trace event parser context.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+enum *tep_flag* {
+	_TEP_NSEC_OUTPUT_,
+	_TEP_DISABLE_SYS_PLUGINS_,
+	_TEP_DISABLE_PLUGINS_
+};
+void *tep_set_flag*(struct tep_handle pass:[*]_tep_, enum tep_flag _flag_);
+void *tep_clear_flag*(struct tep_handle pass:[*]_tep_, enum tep_flag _flag_);
+bool *tep_test_flag*(struct tep_handle pass:[*]_tep_, enum tep_flag _flag_);
+--
+
+DESCRIPTION
+-----------
+Trace event parser context flags are defined in *enum tep_flag*:
+[verse]
+--
+_TEP_NSEC_OUTPUT_ - print event's timestamp in nano seconds, instead of micro seconds.
+_TEP_DISABLE_SYS_PLUGINS_ - disable plugins, located in system's plugin
+			directory. This directory is defined at library compile
+			time, and usually depends on library installation
+			prefix: (install_preffix)/lib/traceevent/plugins
+_TEP_DISABLE_PLUGINS_ - disable all library plugins:
+			- in system's plugin directory
+			- in directory, defined by the environment variable _TRACEEVENT_PLUGIN_DIR_
+			- in user's home directory, _~/.traceevent/plugins_
+--
+Note: plugin related flags must me set before calling _tep_load_plugins()_ API.
+
+The _tep_set_flag()_ function sets _flag_ to _tep_ context.
+
+The _tep_clear_flag()_ function clears _flag_ from _tep_ context.
+
+The _tep_test_flag()_ function tests if _flag_ is set to _tep_ context.
+
+RETURN VALUE
+------------
+_tep_test_flag()_ function returns true if _flag_ is set, false otherwise.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+/* Print timestamps in nanoseconds */
+tep_set_flag(tep,  TEP_NSEC_OUTPUT);
+...
+if (tep_test_flag(tep, TEP_NSEC_OUTPUT)) {
+	/* print timestamps in nanoseconds */
+} else {
+	/* print timestamps in microseconds */
+}
+...
+/* Print timestamps in microseconds */
+tep_clear_flag(tep, TEP_NSEC_OUTPUT);
+...
+--
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-strerror.txt b/tools/lib/traceevent/Documentation/libtraceevent-strerror.txt
new file mode 100644
index 0000000..ee4062a
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-strerror.txt
@@ -0,0 +1,85 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_strerror - Returns a string describing regular errno and tep error number.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_strerror*(struct tep_handle pass:[*]_tep_, enum tep_errno _errnum_, char pass:[*]_buf_, size_t _buflen_);
+
+--
+DESCRIPTION
+-----------
+The _tep_strerror()_ function converts tep error number into a human
+readable string.
+The _tep_ argument is trace event parser context. The _errnum_ is a regular
+errno, defined in errno.h, or a tep error number. The string, describing this
+error number is copied in the _buf_ argument. The _buflen_ argument is
+the size of the _buf_.
+
+It as a thread safe wrapper around strerror_r(). The library function has two
+different behaviors - POSIX and GNU specific. The _tep_strerror()_ API always
+behaves as the POSIX version - the error string is copied in the user supplied
+buffer.
+
+RETURN VALUE
+------------
+The _tep_strerror()_ function returns 0, if a valid _errnum_ is passed and the
+string is copied into _buf_. If _errnum_ is not a valid error number,
+-1 is returned and _buf_ is not modified.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+char buf[32];
+char *pool = calloc(1, 128);
+if (tep == NULL) {
+	tep_strerror(tep, TEP_ERRNO__MEM_ALLOC_FAILED, buf, 32);
+	printf ("The pool is not initialized, %s", buf);
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-tseq.txt b/tools/lib/traceevent/Documentation/libtraceevent-tseq.txt
new file mode 100644
index 0000000..8ac6aa1
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-tseq.txt
@@ -0,0 +1,158 @@
+libtraceevent(3)
+================
+
+NAME
+----
+trace_seq_init, trace_seq_destroy, trace_seq_reset, trace_seq_terminate,
+trace_seq_putc, trace_seq_puts, trace_seq_printf, trace_seq_vprintf,
+trace_seq_do_fprintf, trace_seq_do_printf -
+Initialize / destroy a trace sequence.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+*#include <trace-seq.h>*
+
+void *trace_seq_init*(struct trace_seq pass:[*]_s_);
+void *trace_seq_destroy*(struct trace_seq pass:[*]_s_);
+void *trace_seq_reset*(struct trace_seq pass:[*]_s_);
+void *trace_seq_terminate*(struct trace_seq pass:[*]_s_);
+int *trace_seq_putc*(struct trace_seq pass:[*]_s_, unsigned char _c_);
+int *trace_seq_puts*(struct trace_seq pass:[*]_s_, const char pass:[*]_str_);
+int *trace_seq_printf*(struct trace_seq pass:[*]_s_, const char pass:[*]_fmt_, _..._);
+int *trace_seq_vprintf*(struct trace_seq pass:[*]_s_, const char pass:[*]_fmt_, va_list _args_);
+int *trace_seq_do_printf*(struct trace_seq pass:[*]_s_);
+int *trace_seq_do_fprintf*(struct trace_seq pass:[*]_s_, FILE pass:[*]_fp_);
+--
+
+DESCRIPTION
+-----------
+Trace sequences are used to allow a function to call several other functions
+to create a string of data to use.
+
+The _trace_seq_init()_ function initializes the trace sequence _s_.
+
+The _trace_seq_destroy()_ function destroys the trace sequence _s_ and frees
+all its resources that it had used.
+
+The _trace_seq_reset()_ function re-initializes the trace sequence _s_. All
+characters already written in _s_ will be deleted.
+
+The _trace_seq_terminate()_ function terminates the trace sequence _s_. It puts
+the null character pass:['\0'] at the end of the buffer.
+
+The _trace_seq_putc()_ function puts a single character _c_ in the trace
+sequence _s_.
+
+The _trace_seq_puts()_ function puts a NULL terminated string _str_ in the
+trace sequence _s_.
+
+The _trace_seq_printf()_ function puts a formated string _fmt _with
+variable arguments _..._ in the trace sequence _s_.
+
+The _trace_seq_vprintf()_ function puts a formated string _fmt _with
+list of arguments _args_ in the trace sequence _s_.
+
+The _trace_seq_do_printf()_ function prints the buffer of trace sequence _s_ to
+the standard output stdout.
+
+The _trace_seq_do_fprintf()_ function prints the buffer of trace sequence _s_
+to the given file _fp_.
+
+RETURN VALUE
+------------
+Both _trace_seq_putc()_ and _trace_seq_puts()_ functions return the number of
+characters put in the trace sequence, or 0 in case of an error
+
+Both _trace_seq_printf()_ and _trace_seq_vprintf()_ functions return 0 if the
+trace oversizes the buffer's free space, the number of characters printed, or
+a negative value in case of an error.
+
+Both _trace_seq_do_printf()_ and _trace_seq_do_fprintf()_ functions return the
+number of printed characters, or -1 in case of an error.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+#include <trace-seq.h>
+...
+struct trace_seq seq;
+trace_seq_init(&seq);
+...
+void foo_seq_print(struct trace_seq *tseq, char *format, ...)
+{
+	va_list ap;
+	va_start(ap, format);
+	if (trace_seq_vprintf(tseq, format, ap) <= 0) {
+		/* Failed to print in the trace sequence */
+	}
+	va_end(ap);
+}
+
+trace_seq_reset(&seq);
+
+char *str = " MAN page example";
+if (trace_seq_puts(&seq, str) != strlen(str)) {
+	/* Failed to put str in the trace sequence */
+}
+if (trace_seq_putc(&seq, ':') != 1) {
+	/* Failed to put ':' in the trace sequence */
+}
+if (trace_seq_printf(&seq, " trace sequence: %d", 1) <= 0) {
+	/* Failed to print in the trace sequence */
+}
+foo_seq_print( &seq, "  %d\n", 2);
+
+trace_seq_terminate(&seq);
+...
+
+if (trace_seq_do_printf(&seq) < 0 ) {
+	/* Failed to print the sequence buffer to the standard output */
+}
+FILE *fp = fopen("trace.txt", "w");
+if (trace_seq_do_fprintf(&seq, fp) < 0 ) [
+	/* Failed to print the sequence buffer to the trace.txt file */
+}
+
+trace_seq_destroy(&seq);
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*trace-seq.h*
+	Header file to include in order to have access to trace sequences related APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/libtraceevent.txt b/tools/lib/traceevent/Documentation/libtraceevent.txt
new file mode 100644
index 0000000..fbd977b
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent.txt
@@ -0,0 +1,203 @@
+libtraceevent(3)
+================
+
+NAME
+----
+libtraceevent - Linux kernel trace event library
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+Management of tep handler data structure and access of its members:
+	struct tep_handle pass:[*]*tep_alloc*(void);
+	void *tep_free*(struct tep_handle pass:[*]_tep_);
+	void *tep_ref*(struct tep_handle pass:[*]_tep_);
+	void *tep_unref*(struct tep_handle pass:[*]_tep_);
+	int *tep_ref_get*(struct tep_handle pass:[*]_tep_);
+	void *tep_set_flag*(struct tep_handle pass:[*]_tep_, enum tep_flag _flag_);
+	void *tep_clear_flag*(struct tep_handle pass:[*]_tep_, enum tep_flag _flag_);
+	bool *tep_test_flag*(struct tep_handle pass:[*]_tep_, enum tep_flag _flags_);
+	int *tep_get_cpus*(struct tep_handle pass:[*]_tep_);
+	void *tep_set_cpus*(struct tep_handle pass:[*]_tep_, int _cpus_);
+	int *tep_get_long_size*(strucqt tep_handle pass:[*]_tep_);
+	void *tep_set_long_size*(struct tep_handle pass:[*]_tep_, int _long_size_);
+	int *tep_get_page_size*(struct tep_handle pass:[*]_tep_);
+	void *tep_set_page_size*(struct tep_handle pass:[*]_tep_, int _page_size_);
+	bool *tep_is_latency_format*(struct tep_handle pass:[*]_tep_);
+	void *tep_set_latency_format*(struct tep_handle pass:[*]_tep_, int _lat_);
+	int *tep_get_header_page_size*(struct tep_handle pass:[*]_tep_);
+	int *tep_get_header_timestamp_size*(struct tep_handle pass:[*]_tep_);
+	bool *tep_is_old_format*(struct tep_handle pass:[*]_tep_);
+	int *tep_strerror*(struct tep_handle pass:[*]_tep_, enum tep_errno _errnum_, char pass:[*]_buf_, size_t _buflen_);
+
+Register / unregister APIs:
+	int *tep_register_trace_clock*(struct tep_handle pass:[*]_tep_, const char pass:[*]_trace_clock_);
+	int *tep_register_function*(struct tep_handle pass:[*]_tep_, char pass:[*]_name_, unsigned long long _addr_, char pass:[*]_mod_);
+	int *tep_register_event_handler*(struct tep_handle pass:[*]_tep_, int _id_, const char pass:[*]_sys_name_, const char pass:[*]_event_name_, tep_event_handler_func _func_, void pass:[*]_context_);
+	int *tep_unregister_event_handler*(struct tep_handle pass:[*]tep, int id, const char pass:[*]sys_name, const char pass:[*]event_name, tep_event_handler_func func, void pass:[*]_context_);
+	int *tep_register_print_string*(struct tep_handle pass:[*]_tep_, const char pass:[*]_fmt_, unsigned long long _addr_);
+	int *tep_register_print_function*(struct tep_handle pass:[*]_tep_, tep_func_handler _func_, enum tep_func_arg_type _ret_type_, char pass:[*]_name_, _..._);
+	int *tep_unregister_print_function*(struct tep_handle pass:[*]_tep_, tep_func_handler _func_, char pass:[*]_name_);
+
+Plugins management:
+	struct tep_plugin_list pass:[*]*tep_load_plugins*(struct tep_handle pass:[*]_tep_);
+	void *tep_unload_plugins*(struct tep_plugin_list pass:[*]_plugin_list_, struct tep_handle pass:[*]_tep_);
+	char pass:[*]pass:[*]*tep_plugin_list_options*(void);
+	void *tep_plugin_free_options_list*(char pass:[*]pass:[*]_list_);
+	int *tep_plugin_add_options*(const char pass:[*]_name_, struct tep_plugin_option pass:[*]_options_);
+	void *tep_plugin_remove_options*(struct tep_plugin_option pass:[*]_options_);
+	void *tep_print_plugins*(struct trace_seq pass:[*]_s_, const char pass:[*]_prefix_, const char pass:[*]_suffix_, const struct tep_plugin_list pass:[*]_list_);
+
+Event related APIs:
+	struct tep_event pass:[*]*tep_get_event*(struct tep_handle pass:[*]_tep_, int _index_);
+	struct tep_event pass:[*]*tep_get_first_event*(struct tep_handle pass:[*]_tep_);
+	int *tep_get_events_count*(struct tep_handle pass:[*]_tep_);
+	struct tep_event pass:[*]pass:[*]*tep_list_events*(struct tep_handle pass:[*]_tep_, enum tep_event_sort_type _sort_type_);
+	struct tep_event pass:[*]pass:[*]*tep_list_events_copy*(struct tep_handle pass:[*]_tep_, enum tep_event_sort_type _sort_type_);
+
+Event printing:
+	void *tep_print_event*(struct tep_handle pass:[*]_tep_, struct trace_seq pass:[*]_s_, struct tep_record pass:[*]_record_, bool _use_trace_clock_);
+	void *tep_print_event_data*(struct tep_handle pass:[*]_tep_, struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, struct tep_record pass:[*]_record_);
+	void *tep_event_info*(struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, struct tep_record pass:[*]_record_);
+	void *tep_print_event_task*(struct tep_handle pass:[*]_tep_, struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, struct tep_record pass:[*]_record_);
+	void *tep_print_event_time*(struct tep_handle pass:[*]_tep_, struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, struct tep_record pass:[*]record, bool _use_trace_clock_);
+	void *tep_set_print_raw*(struct tep_handle pass:[*]_tep_, int _print_raw_);
+
+Event finding:
+	struct tep_event pass:[*]*tep_find_event*(struct tep_handle pass:[*]_tep_, int _id_);
+	struct tep_event pass:[*]*tep_find_event_by_name*(struct tep_handle pass:[*]_tep_, const char pass:[*]_sys_, const char pass:[*]_name_);
+	struct tep_event pass:[*]*tep_find_event_by_record*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_record_);
+
+Parsing of event files:
+	int *tep_parse_header_page*(struct tep_handle pass:[*]_tep_, char pass:[*]_buf_, unsigned long _size_, int _long_size_);
+	enum tep_errno *tep_parse_event*(struct tep_handle pass:[*]_tep_, const char pass:[*]_buf_, unsigned long _size_, const char pass:[*]_sys_);
+	enum tep_errno *tep_parse_format*(struct tep_handle pass:[*]_tep_, struct tep_event pass:[*]pass:[*]_eventp_, const char pass:[*]_buf_, unsigned long _size_, const char pass:[*]_sys_);
+
+APIs related to fields from event's format files:
+	struct tep_format_field pass:[*]pass:[*]*tep_event_common_fields*(struct tep_event pass:[*]_event_);
+	struct tep_format_field pass:[*]pass:[*]*tep_event_fields*(struct tep_event pass:[*]_event_);
+	void pass:[*]*tep_get_field_raw*(struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, int pass:[*]_len_, int _err_);
+	int *tep_get_field_val*(struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, unsigned long long pass:[*]_val_, int _err_);
+	int *tep_get_common_field_val*(struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, unsigned long long pass:[*]_val_, int _err_);
+	int *tep_get_any_field_val*(struct trace_seq pass:[*]_s_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, unsigned long long pass:[*]_val_, int _err_);
+	int *tep_read_number_field*(struct tep_format_field pass:[*]_field_, const void pass:[*]_data_, unsigned long long pass:[*]_value_);
+
+Event fields printing:
+	void *tep_print_field*(struct trace_seq pass:[*]_s_, void pass:[*]_data_, struct tep_format_field pass:[*]_field_);
+	void *tep_print_fields*(struct trace_seq pass:[*]_s_, void pass:[*]_data_, int _size_, struct tep_event pass:[*]_event_);
+	int *tep_print_num_field*(struct trace_seq pass:[*]_s_, const char pass:[*]_fmt_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, int _err_);
+	int *tep_print_func_field*(struct trace_seq pass:[*]_s_, const char pass:[*]_fmt_, struct tep_event pass:[*]_event_, const char pass:[*]_name_, struct tep_record pass:[*]_record_, int _err_);
+
+Event fields finding:
+	struct tep_format_field pass:[*]*tep_find_common_field*(struct tep_event pass:[*]_event_, const char pass:[*]_name_);
+	struct tep_format_field pass:[*]*tep_find_field*(struct tep_event_ormat pass:[*]_event_, const char pass:[*]_name_);
+	struct tep_format_field pass:[*]*tep_find_any_field*(struct tep_event pass:[*]_event_, const char pass:[*]_name_);
+
+Functions resolver:
+	int *tep_set_function_resolver*(struct tep_handle pass:[*]_tep_, tep_func_resolver_t pass:[*]_func_, void pass:[*]_priv_);
+	void *tep_reset_function_resolver*(struct tep_handle pass:[*]_tep_);
+	const char pass:[*]*tep_find_function*(struct tep_handle pass:[*]_tep_, unsigned long long _addr_);
+	unsigned long long *tep_find_function_address*(struct tep_handle pass:[*]_tep_, unsigned long long _addr_);
+
+Filter management:
+	struct tep_event_filter pass:[*]*tep_filter_alloc*(struct tep_handle pass:[*]_tep_);
+	enum tep_errno *tep_filter_add_filter_str*(struct tep_event_filter pass:[*]_filter_, const char pass:[*]_filter_str_);
+	enum tep_errno *tep_filter_match*(struct tep_event_filter pass:[*]_filter_, struct tep_record pass:[*]_record_);
+	int *tep_filter_strerror*(struct tep_event_filter pass:[*]_filter_, enum tep_errno _err_, char pass:[*]buf, size_t _buflen_);
+	int *tep_event_filtered*(struct tep_event_filter pass:[*]_filter_, int _event_id_);
+	void *tep_filter_reset*(struct tep_event_filter pass:[*]_filter_);
+	void *tep_filter_free*(struct tep_event_filter pass:[*]_filter_);
+	char pass:[*]*tep_filter_make_string*(struct tep_event_filter pass:[*]_filter_, int _event_id_);
+	int *tep_filter_remove_event*(struct tep_event_filter pass:[*]_filter_, int _event_id_);
+	int *tep_filter_copy*(struct tep_event_filter pass:[*]_dest_, struct tep_event_filter pass:[*]_source_);
+	int *tep_filter_compare*(struct tep_event_filter pass:[*]_filter1_, struct tep_event_filter pass:[*]_filter2_);
+
+Parsing various data from the records:
+	void *tep_data_latency_format*(struct tep_handle pass:[*]_tep_, struct trace_seq pass:[*]_s_, struct tep_record pass:[*]_record_);
+	int *tep_data_type*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_rec_);
+	int *tep_data_pid*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_rec_);
+	int *tep_data_preempt_count*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_rec_);
+	int *tep_data_flags*(struct tep_handle pass:[*]_tep_, struct tep_record pass:[*]_rec_);
+
+Command and task related APIs:
+	const char pass:[*]*tep_data_comm_from_pid*(struct tep_handle pass:[*]_tep_, int _pid_);
+	struct cmdline pass:[*]*tep_data_pid_from_comm*(struct tep_handle pass:[*]_tep_, const char pass:[*]_comm_, struct cmdline pass:[*]_next_);
+	int *tep_register_comm*(struct tep_handle pass:[*]_tep_, const char pass:[*]_comm_, int _pid_);
+	int *tep_override_comm*(struct tep_handle pass:[*]_tep_, const char pass:[*]_comm_, int _pid_);
+	bool *tep_is_pid_registered*(struct tep_handle pass:[*]_tep_, int _pid_);
+	int *tep_cmdline_pid*(struct tep_handle pass:[*]_tep_, struct cmdline pass:[*]_cmdline_);
+
+Endian related APIs:
+	int *tep_is_bigendian*(void);
+	unsigned long long *tep_read_number*(struct tep_handle pass:[*]_tep_, const void pass:[*]_ptr_, int _size_);
+	bool *tep_is_file_bigendian*(struct tep_handle pass:[*]_tep_);
+	void *tep_set_file_bigendian*(struct tep_handle pass:[*]_tep_, enum tep_endian _endian_);
+	bool *tep_is_local_bigendian*(struct tep_handle pass:[*]_tep_);
+	void *tep_set_local_bigendian*(struct tep_handle pass:[*]_tep_, enum tep_endian _endian_);
+
+Trace sequences:
+*#include <trace-seq.h>*
+	void *trace_seq_init*(struct trace_seq pass:[*]_s_);
+	void *trace_seq_reset*(struct trace_seq pass:[*]_s_);
+	void *trace_seq_destroy*(struct trace_seq pass:[*]_s_);
+	int *trace_seq_printf*(struct trace_seq pass:[*]_s_, const char pass:[*]_fmt_, ...);
+	int *trace_seq_vprintf*(struct trace_seq pass:[*]_s_, const char pass:[*]_fmt_, va_list _args_);
+	int *trace_seq_puts*(struct trace_seq pass:[*]_s_, const char pass:[*]_str_);
+	int *trace_seq_putc*(struct trace_seq pass:[*]_s_, unsigned char _c_);
+	void *trace_seq_terminate*(struct trace_seq pass:[*]_s_);
+	int *trace_seq_do_fprintf*(struct trace_seq pass:[*]_s_, FILE pass:[*]_fp_);
+	int *trace_seq_do_printf*(struct trace_seq pass:[*]_s_);
+--
+
+DESCRIPTION
+-----------
+The libtraceevent(3) library provides APIs to access kernel tracepoint events,
+located in the tracefs file system under the events directory.
+
+ENVIRONMENT
+-----------
+[verse]
+--
+TRACEEVENT_PLUGIN_DIR
+	Additional plugin directory. All shared object files, located in this directory will be loaded as traceevent plugins.
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*trace-seq.h*
+	Header file to include in order to have access to trace sequences related APIs.
+	Trace sequences are used to allow a function to call several other functions
+	to create a string of data to use.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/lib/traceevent/Documentation/manpage-1.72.xsl b/tools/lib/traceevent/Documentation/manpage-1.72.xsl
new file mode 100644
index 0000000..b4d315c
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/manpage-1.72.xsl
@@ -0,0 +1,14 @@
+<!-- manpage-1.72.xsl:
+     special settings for manpages rendered from asciidoc+docbook
+     handles peculiarities in docbook-xsl 1.72.0 -->
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+		version="1.0">
+
+<xsl:import href="manpage-base.xsl"/>
+
+<!-- these are the special values for the roff control characters
+     needed for docbook-xsl 1.72.0 -->
+<xsl:param name="git.docbook.backslash">&#x2593;</xsl:param>
+<xsl:param name="git.docbook.dot"      >&#x2302;</xsl:param>
+
+</xsl:stylesheet>
diff --git a/tools/lib/traceevent/Documentation/manpage-base.xsl b/tools/lib/traceevent/Documentation/manpage-base.xsl
new file mode 100644
index 0000000..a264fa61
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/manpage-base.xsl
@@ -0,0 +1,35 @@
+<!-- manpage-base.xsl:
+     special formatting for manpages rendered from asciidoc+docbook -->
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+		version="1.0">
+
+<!-- these params silence some output from xmlto -->
+<xsl:param name="man.output.quietly" select="1"/>
+<xsl:param name="refentry.meta.get.quietly" select="1"/>
+
+<!-- convert asciidoc callouts to man page format;
+     git.docbook.backslash and git.docbook.dot params
+     must be supplied by another XSL file or other means -->
+<xsl:template match="co">
+	<xsl:value-of select="concat(
+			      $git.docbook.backslash,'fB(',
+			      substring-after(@id,'-'),')',
+			      $git.docbook.backslash,'fR')"/>
+</xsl:template>
+<xsl:template match="calloutlist">
+	<xsl:value-of select="$git.docbook.dot"/>
+	<xsl:text>sp&#10;</xsl:text>
+	<xsl:apply-templates/>
+	<xsl:text>&#10;</xsl:text>
+</xsl:template>
+<xsl:template match="callout">
+	<xsl:value-of select="concat(
+			      $git.docbook.backslash,'fB',
+			      substring-after(@arearefs,'-'),
+			      '. ',$git.docbook.backslash,'fR')"/>
+	<xsl:apply-templates/>
+	<xsl:value-of select="$git.docbook.dot"/>
+	<xsl:text>br&#10;</xsl:text>
+</xsl:template>
+
+</xsl:stylesheet>
diff --git a/tools/lib/traceevent/Documentation/manpage-bold-literal.xsl b/tools/lib/traceevent/Documentation/manpage-bold-literal.xsl
new file mode 100644
index 0000000..608eb5d
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/manpage-bold-literal.xsl
@@ -0,0 +1,17 @@
+<!-- manpage-bold-literal.xsl:
+     special formatting for manpages rendered from asciidoc+docbook -->
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+		version="1.0">
+
+<!-- render literal text as bold (instead of plain or monospace);
+     this makes literal text easier to distinguish in manpages
+     viewed on a tty -->
+<xsl:template match="literal">
+	<xsl:value-of select="$git.docbook.backslash"/>
+	<xsl:text>fB</xsl:text>
+	<xsl:apply-templates/>
+	<xsl:value-of select="$git.docbook.backslash"/>
+	<xsl:text>fR</xsl:text>
+</xsl:template>
+
+</xsl:stylesheet>
diff --git a/tools/lib/traceevent/Documentation/manpage-normal.xsl b/tools/lib/traceevent/Documentation/manpage-normal.xsl
new file mode 100644
index 0000000..a48f5b1
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/manpage-normal.xsl
@@ -0,0 +1,13 @@
+<!-- manpage-normal.xsl:
+     special settings for manpages rendered from asciidoc+docbook
+     handles anything we want to keep away from docbook-xsl 1.72.0 -->
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+		version="1.0">
+
+<xsl:import href="manpage-base.xsl"/>
+
+<!-- these are the normal values for the roff control characters -->
+<xsl:param name="git.docbook.backslash">\</xsl:param>
+<xsl:param name="git.docbook.dot"	>.</xsl:param>
+
+</xsl:stylesheet>
diff --git a/tools/lib/traceevent/Documentation/manpage-suppress-sp.xsl b/tools/lib/traceevent/Documentation/manpage-suppress-sp.xsl
new file mode 100644
index 0000000..a63c763
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/manpage-suppress-sp.xsl
@@ -0,0 +1,21 @@
+<!-- manpage-suppress-sp.xsl:
+     special settings for manpages rendered from asciidoc+docbook
+     handles erroneous, inline .sp in manpage output of some
+     versions of docbook-xsl -->
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+		version="1.0">
+
+<!-- attempt to work around spurious .sp at the tail of the line
+     that some versions of docbook stylesheets seem to add -->
+<xsl:template match="simpara">
+  <xsl:variable name="content">
+    <xsl:apply-templates/>
+  </xsl:variable>
+  <xsl:value-of select="normalize-space($content)"/>
+  <xsl:if test="not(ancestor::authorblurb) and
+                not(ancestor::personblurb)">
+    <xsl:text>&#10;&#10;</xsl:text>
+  </xsl:if>
+</xsl:template>
+
+</xsl:stylesheet>
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 941761d..3292c29 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -50,9 +50,13 @@
 man_dir_SQ = '$(subst ','\'',$(man_dir))'
 pkgconfig_dir ?= $(word 1,$(shell $(PKG_CONFIG) 		\
 			--variable pc_path pkg-config | tr ":" " "))
+includedir_relative = traceevent
+includedir = $(prefix)/include/$(includedir_relative)
+includedir_SQ = '$(subst ','\'',$(includedir))'
 
 export man_dir man_dir_SQ INSTALL
 export DESTDIR DESTDIR_SQ
+export EVENT_PARSE_VERSION
 
 set_plugin_dir := 1
 
@@ -279,6 +283,8 @@
 		cp -f ${PKG_CONFIG_FILE}.template ${PKG_CONFIG_FILE}; 		\
 		sed -i "s|INSTALL_PREFIX|${1}|g" ${PKG_CONFIG_FILE}; 		\
 		sed -i "s|LIB_VERSION|${EVENT_PARSE_VERSION}|g" ${PKG_CONFIG_FILE}; \
+		sed -i "s|LIB_DIR|${libdir}|g" ${PKG_CONFIG_FILE}; \
+		sed -i "s|HEADER_DIR|$(includedir)|g" ${PKG_CONFIG_FILE}; \
 		$(call do_install,$(PKG_CONFIG_FILE),$(pkgconfig_dir),644); 	\
 	else 									\
 		(echo Failed to locate pkg-config directory) 1>&2;		\
@@ -300,10 +306,10 @@
 
 install_headers:
 	$(call QUIET_INSTALL, headers) \
-		$(call do_install,event-parse.h,$(prefix)/include/traceevent,644); \
-		$(call do_install,event-utils.h,$(prefix)/include/traceevent,644); \
-		$(call do_install,trace-seq.h,$(prefix)/include/traceevent,644); \
-		$(call do_install,kbuffer.h,$(prefix)/include/traceevent,644)
+		$(call do_install,event-parse.h,$(DESTDIR)$(includedir_SQ),644); \
+		$(call do_install,event-utils.h,$(DESTDIR)$(includedir_SQ),644); \
+		$(call do_install,trace-seq.h,$(DESTDIR)$(includedir_SQ),644); \
+		$(call do_install,kbuffer.h,$(DESTDIR)$(includedir_SQ),644)
 
 install: install_lib
 
@@ -313,6 +319,38 @@
 		$(RM) TRACEEVENT-CFLAGS tags TAGS; \
 		$(RM) $(PKG_CONFIG_FILE)
 
+PHONY += doc
+doc:
+	$(call descend,Documentation)
+
+PHONY += doc-clean
+doc-clean:
+	$(call descend,Documentation,clean)
+
+PHONY += doc-install
+doc-install:
+	$(call descend,Documentation,install)
+
+PHONY += doc-uninstall
+doc-uninstall:
+	$(call descend,Documentation,uninstall)
+
+PHONY += help
+help:
+	@echo 'Possible targets:'
+	@echo''
+	@echo '  all                 - default, compile the library and the'\
+				      'plugins'
+	@echo '  plugins             - compile the plugins'
+	@echo '  install             - install the library, the plugins,'\
+					'the header and pkgconfig files'
+	@echo '  clean               - clean the library and the plugins object files'
+	@echo '  doc                 - compile the documentation files - man'\
+					'and html pages, in the Documentation directory'
+	@echo '  doc-clean           - clean the documentation files'
+	@echo '  doc-install         - install the man pages'
+	@echo '  doc-uninstall       - uninstall the man pages'
+	@echo''
 PHONY += force plugins
 force:
 
diff --git a/tools/lib/traceevent/libtraceevent.pc.template b/tools/lib/traceevent/libtraceevent.pc.template
index 42e4d6c..86384fc 100644
--- a/tools/lib/traceevent/libtraceevent.pc.template
+++ b/tools/lib/traceevent/libtraceevent.pc.template
@@ -1,6 +1,6 @@
 prefix=INSTALL_PREFIX
-libdir=${prefix}/lib64
-includedir=${prefix}/include/traceevent
+libdir=LIB_DIR
+includedir=HEADER_DIR
 
 Name: libtraceevent
 URL: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index 53f8be0..8815823 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -7,11 +7,12 @@
 endif
 
 # always use the host compiler
+HOSTAR	?= ar
 HOSTCC	?= gcc
 HOSTLD	?= ld
+AR	 = $(HOSTAR)
 CC	 = $(HOSTCC)
 LD	 = $(HOSTLD)
-AR	 = ar
 
 ifeq ($(srctree),)
 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
diff --git a/tools/pci/Makefile b/tools/pci/Makefile
index 9b75344..6876ee4 100644
--- a/tools/pci/Makefile
+++ b/tools/pci/Makefile
@@ -47,7 +47,7 @@
 
 install: $(ALL_PROGRAMS)
 	install -d -m 755 $(DESTDIR)$(bindir);		\
-	for program in $(ALL_PROGRAMS); do		\
+	for program in $(ALL_PROGRAMS) pcitest.sh; do	\
 		install $$program $(DESTDIR)$(bindir);	\
 	done;						\
 	for script in $(ALL_SCRIPTS); do		\
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index 138fb6e..18ed1b0 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -199,6 +199,18 @@
 
   perf stat -C 0 -e 'hv_gpci/dtbp_ptitc,phys_processor_idx=0x2/' ...
 
+EVENT QUALIFIERS:
+
+It is also possible to add extra qualifiers to an event:
+
+percore:
+
+Sums up the event counts for all hardware threads in a core, e.g.:
+
+
+  perf stat -e cpu/event=0,umask=0x3,percore=1/
+
+
 EVENT GROUPS
 ------------
 
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 58986f4..de26943 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -406,7 +406,8 @@
 --intr-regs=ax,bx. The list of register is architecture dependent.
 
 --user-regs::
-Capture user registers at sample time. Same arguments as -I.
+Similar to -I, but capture user registers at sample time. To list the available
+user registers use --user-regs=\?.
 
 --running-time::
 Record running and enabled time for read events (:S)
@@ -478,6 +479,11 @@
 can take less time than executing more output write syscalls with smaller data
 size thus lowering runtime profiling overhead.
 
+-z::
+--compression-level[=n]::
+Produce compressed trace using specified level n (default: 1 - fastest compression,
+22 - smallest trace)
+
 --all-kernel::
 Configure all used events to run in kernel space.
 
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 39c05f8..1e312c2 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -43,6 +43,10 @@
 	  param1 and param2 are defined as formats for the PMU in
 	  /sys/bus/event_source/devices/<pmu>/format/*
 
+	  'percore' is a event qualifier that sums up the event counts for both
+	  hardware threads in a core. For example:
+	  perf stat -A -a -e cpu/event,percore=1/,otherevent ...
+
 	- a symbolically formed event like 'pmu/config=M,config1=N,config2=K/'
 	  where M, N, K are numbers (in decimal, hex, octal format).
 	  Acceptable values for each of 'config', 'config1' and 'config2'
diff --git a/tools/perf/Documentation/perf.data-file-format.txt b/tools/perf/Documentation/perf.data-file-format.txt
index 593ef49..6967e9b 100644
--- a/tools/perf/Documentation/perf.data-file-format.txt
+++ b/tools/perf/Documentation/perf.data-file-format.txt
@@ -272,6 +272,19 @@
 
 Two uint64_t for the time of first sample and the time of last sample.
 
+        HEADER_COMPRESSED = 27,
+
+struct {
+	u32	version;
+	u32	type;
+	u32	level;
+	u32	ratio;
+	u32	mmap_len;
+};
+
+Indicates that trace contains records of PERF_RECORD_COMPRESSED type
+that have perf_events records in compressed form.
+
 	other bits are reserved and should ignored for now
 	HEADER_FEAT_BITS	= 256,
 
@@ -437,6 +450,17 @@
 Describes a header feature. These are records used in pipe-mode that
 contain information that otherwise would be in perf.data file's header.
 
+	PERF_RECORD_COMPRESSED 			= 81,
+
+struct compressed_event {
+	struct perf_event_header	header;
+	char				data[];
+};
+
+The header is followed by compressed data frame that can be decompressed
+into array of perf trace records. The size of the entire compressed event
+record including the header is limited by the max value of header.size.
+
 Event types
 
 Define the event attributes with their IDs.
diff --git a/tools/perf/Documentation/perf.txt b/tools/perf/Documentation/perf.txt
index 864e375..401f0ed 100644
--- a/tools/perf/Documentation/perf.txt
+++ b/tools/perf/Documentation/perf.txt
@@ -22,6 +22,8 @@
 	  verbose          - general debug messages
 	  ordered-events   - ordered events object debug messages
 	  data-convert     - data convert command debug messages
+	  stderr           - write debug output (option -v) to stderr
+	                     in browser mode
 
 --buildid-dir::
 	Setup buildid cache directory. It has higher priority than
diff --git a/tools/perf/arch/x86/include/perf_regs.h b/tools/perf/arch/x86/include/perf_regs.h
index 7f6d538..b7cd91a 100644
--- a/tools/perf/arch/x86/include/perf_regs.h
+++ b/tools/perf/arch/x86/include/perf_regs.h
@@ -8,9 +8,10 @@
 
 void perf_regs_load(u64 *regs);
 
+#define PERF_REGS_MAX PERF_REG_X86_XMM_MAX
+#define PERF_XMM_REGS_MASK	(~((1ULL << PERF_REG_X86_XMM0) - 1))
 #ifndef HAVE_ARCH_X86_64_SUPPORT
 #define PERF_REGS_MASK ((1ULL << PERF_REG_X86_32_MAX) - 1)
-#define PERF_REGS_MAX PERF_REG_X86_32_MAX
 #define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_32
 #else
 #define REG_NOSUPPORT ((1ULL << PERF_REG_X86_DS) | \
@@ -18,7 +19,6 @@
 		       (1ULL << PERF_REG_X86_FS) | \
 		       (1ULL << PERF_REG_X86_GS))
 #define PERF_REGS_MASK (((1ULL << PERF_REG_X86_64_MAX) - 1) & ~REG_NOSUPPORT)
-#define PERF_REGS_MAX PERF_REG_X86_64_MAX
 #define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_64
 #endif
 #define PERF_REG_IP PERF_REG_X86_IP
@@ -77,6 +77,28 @@
 	case PERF_REG_X86_R15:
 		return "R15";
 #endif /* HAVE_ARCH_X86_64_SUPPORT */
+
+#define XMM(x) \
+	case PERF_REG_X86_XMM ## x:	\
+	case PERF_REG_X86_XMM ## x + 1:	\
+		return "XMM" #x;
+	XMM(0)
+	XMM(1)
+	XMM(2)
+	XMM(3)
+	XMM(4)
+	XMM(5)
+	XMM(6)
+	XMM(7)
+	XMM(8)
+	XMM(9)
+	XMM(10)
+	XMM(11)
+	XMM(12)
+	XMM(13)
+	XMM(14)
+	XMM(15)
+#undef XMM
 	default:
 		return NULL;
 	}
diff --git a/tools/perf/arch/x86/util/perf_regs.c b/tools/perf/arch/x86/util/perf_regs.c
index fead6b3..7886ca5 100644
--- a/tools/perf/arch/x86/util/perf_regs.c
+++ b/tools/perf/arch/x86/util/perf_regs.c
@@ -31,6 +31,22 @@
 	SMPL_REG(R14, PERF_REG_X86_R14),
 	SMPL_REG(R15, PERF_REG_X86_R15),
 #endif
+	SMPL_REG2(XMM0, PERF_REG_X86_XMM0),
+	SMPL_REG2(XMM1, PERF_REG_X86_XMM1),
+	SMPL_REG2(XMM2, PERF_REG_X86_XMM2),
+	SMPL_REG2(XMM3, PERF_REG_X86_XMM3),
+	SMPL_REG2(XMM4, PERF_REG_X86_XMM4),
+	SMPL_REG2(XMM5, PERF_REG_X86_XMM5),
+	SMPL_REG2(XMM6, PERF_REG_X86_XMM6),
+	SMPL_REG2(XMM7, PERF_REG_X86_XMM7),
+	SMPL_REG2(XMM8, PERF_REG_X86_XMM8),
+	SMPL_REG2(XMM9, PERF_REG_X86_XMM9),
+	SMPL_REG2(XMM10, PERF_REG_X86_XMM10),
+	SMPL_REG2(XMM11, PERF_REG_X86_XMM11),
+	SMPL_REG2(XMM12, PERF_REG_X86_XMM12),
+	SMPL_REG2(XMM13, PERF_REG_X86_XMM13),
+	SMPL_REG2(XMM14, PERF_REG_X86_XMM14),
+	SMPL_REG2(XMM15, PERF_REG_X86_XMM15),
 	SMPL_REG_END
 };
 
@@ -254,3 +270,31 @@
 
 	return SDT_ARG_VALID;
 }
+
+uint64_t arch__intr_reg_mask(void)
+{
+	struct perf_event_attr attr = {
+		.type			= PERF_TYPE_HARDWARE,
+		.config			= PERF_COUNT_HW_CPU_CYCLES,
+		.sample_type		= PERF_SAMPLE_REGS_INTR,
+		.sample_regs_intr	= PERF_XMM_REGS_MASK,
+		.precise_ip		= 1,
+		.disabled 		= 1,
+		.exclude_kernel		= 1,
+	};
+	int fd;
+	/*
+	 * In an unnamed union, init it here to build on older gcc versions
+	 */
+	attr.sample_period = 1;
+
+	event_attr_init(&attr);
+
+	fd = sys_perf_event_open(&attr, 0, -1, -1, 0);
+	if (fd != -1) {
+		close(fd);
+		return (PERF_XMM_REGS_MASK | PERF_REGS_MASK);
+	}
+
+	return PERF_REGS_MASK;
+}
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 67f9d9f..77deb3a 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -159,8 +159,6 @@
 	struct perf_evsel *evsel = iter->evsel;
 	int err;
 
-	hist__account_cycles(sample->branch_stack, al, sample, false);
-
 	bi = he->branch_info;
 	err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 
@@ -199,6 +197,8 @@
 	if (a.map != NULL)
 		a.map->dso->hit = 1;
 
+	hist__account_cycles(sample->branch_stack, al, sample, false);
+
 	ret = hist_entry_iter__add(&iter, &a, PERF_MAX_STACK_DEPTH, ann);
 	return ret;
 }
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 24086b7..8e0e06d 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -837,6 +837,9 @@
 	if (inject.session == NULL)
 		return -1;
 
+	if (zstd_init(&(inject.session->zstd_data), 0) < 0)
+		pr_warning("Decompression initialization failed.\n");
+
 	if (inject.build_ids) {
 		/*
 		 * to make sure the mmap records are ordered correctly
@@ -867,6 +870,7 @@
 	ret = __cmd_inject(&inject);
 
 out_delete:
+	zstd_fini(&(inject.session->zstd_data));
 	perf_session__delete(inject.session);
 	return ret;
 }
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index c5e1055..e2c3a58 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -133,6 +133,11 @@
 	return 0;
 }
 
+static int record__aio_enabled(struct record *rec);
+static int record__comp_enabled(struct record *rec);
+static size_t zstd_compress(struct perf_session *session, void *dst, size_t dst_size,
+			    void *src, size_t src_size);
+
 #ifdef HAVE_AIO_SUPPORT
 static int record__aio_write(struct aiocb *cblock, int trace_fd,
 		void *buf, size_t size, off_t off)
@@ -183,9 +188,9 @@
 	if (rem_size == 0) {
 		cblock->aio_fildes = -1;
 		/*
-		 * md->refcount is incremented in perf_mmap__push() for
-		 * every enqueued aio write request so decrement it because
-		 * the request is now complete.
+		 * md->refcount is incremented in record__aio_pushfn() for
+		 * every aio write request started in record__aio_push() so
+		 * decrement it because the request is now complete.
 		 */
 		perf_mmap__put(md);
 		rc = 1;
@@ -240,18 +245,89 @@
 	} while (1);
 }
 
-static int record__aio_pushfn(void *to, struct aiocb *cblock, void *bf, size_t size, off_t off)
+struct record_aio {
+	struct record	*rec;
+	void		*data;
+	size_t		size;
+};
+
+static int record__aio_pushfn(struct perf_mmap *map, void *to, void *buf, size_t size)
 {
-	struct record *rec = to;
-	int ret, trace_fd = rec->session->data->file.fd;
+	struct record_aio *aio = to;
+
+	/*
+	 * map->base data pointed by buf is copied into free map->aio.data[] buffer
+	 * to release space in the kernel buffer as fast as possible, calling
+	 * perf_mmap__consume() from perf_mmap__push() function.
+	 *
+	 * That lets the kernel to proceed with storing more profiling data into
+	 * the kernel buffer earlier than other per-cpu kernel buffers are handled.
+	 *
+	 * Coping can be done in two steps in case the chunk of profiling data
+	 * crosses the upper bound of the kernel buffer. In this case we first move
+	 * part of data from map->start till the upper bound and then the reminder
+	 * from the beginning of the kernel buffer till the end of the data chunk.
+	 */
+
+	if (record__comp_enabled(aio->rec)) {
+		size = zstd_compress(aio->rec->session, aio->data + aio->size,
+				     perf_mmap__mmap_len(map) - aio->size,
+				     buf, size);
+	} else {
+		memcpy(aio->data + aio->size, buf, size);
+	}
+
+	if (!aio->size) {
+		/*
+		 * Increment map->refcount to guard map->aio.data[] buffer
+		 * from premature deallocation because map object can be
+		 * released earlier than aio write request started on
+		 * map->aio.data[] buffer is complete.
+		 *
+		 * perf_mmap__put() is done at record__aio_complete()
+		 * after started aio request completion or at record__aio_push()
+		 * if the request failed to start.
+		 */
+		perf_mmap__get(map);
+	}
+
+	aio->size += size;
+
+	return size;
+}
+
+static int record__aio_push(struct record *rec, struct perf_mmap *map, off_t *off)
+{
+	int ret, idx;
+	int trace_fd = rec->session->data->file.fd;
+	struct record_aio aio = { .rec = rec, .size = 0 };
+
+	/*
+	 * Call record__aio_sync() to wait till map->aio.data[] buffer
+	 * becomes available after previous aio write operation.
+	 */
+
+	idx = record__aio_sync(map, false);
+	aio.data = map->aio.data[idx];
+	ret = perf_mmap__push(map, &aio, record__aio_pushfn);
+	if (ret != 0) /* ret > 0 - no data, ret < 0 - error */
+		return ret;
 
 	rec->samples++;
-
-	ret = record__aio_write(cblock, trace_fd, bf, size, off);
+	ret = record__aio_write(&(map->aio.cblocks[idx]), trace_fd, aio.data, aio.size, *off);
 	if (!ret) {
-		rec->bytes_written += size;
+		*off += aio.size;
+		rec->bytes_written += aio.size;
 		if (switch_output_size(rec))
 			trigger_hit(&switch_output_trigger);
+	} else {
+		/*
+		 * Decrement map->refcount incremented in record__aio_pushfn()
+		 * back if record__aio_write() operation failed to start, otherwise
+		 * map->refcount is decremented in record__aio_complete() after
+		 * aio write operation finishes successfully.
+		 */
+		perf_mmap__put(map);
 	}
 
 	return ret;
@@ -273,7 +349,7 @@
 	struct perf_evlist *evlist = rec->evlist;
 	struct perf_mmap *maps = evlist->mmap;
 
-	if (!rec->opts.nr_cblocks)
+	if (!record__aio_enabled(rec))
 		return;
 
 	for (i = 0; i < evlist->nr_mmaps; i++) {
@@ -307,13 +383,8 @@
 #else /* HAVE_AIO_SUPPORT */
 static int nr_cblocks_max = 0;
 
-static int record__aio_sync(struct perf_mmap *md __maybe_unused, bool sync_all __maybe_unused)
-{
-	return -1;
-}
-
-static int record__aio_pushfn(void *to __maybe_unused, struct aiocb *cblock __maybe_unused,
-		void *bf __maybe_unused, size_t size __maybe_unused, off_t off __maybe_unused)
+static int record__aio_push(struct record *rec __maybe_unused, struct perf_mmap *map __maybe_unused,
+			    off_t *off __maybe_unused)
 {
 	return -1;
 }
@@ -372,6 +443,32 @@
 	return 0;
 }
 
+#ifdef HAVE_ZSTD_SUPPORT
+static unsigned int comp_level_default = 1;
+
+static int record__parse_comp_level(const struct option *opt, const char *str, int unset)
+{
+	struct record_opts *opts = opt->value;
+
+	if (unset) {
+		opts->comp_level = 0;
+	} else {
+		if (str)
+			opts->comp_level = strtol(str, NULL, 0);
+		if (!opts->comp_level)
+			opts->comp_level = comp_level_default;
+	}
+
+	return 0;
+}
+#endif
+static unsigned int comp_level_max = 22;
+
+static int record__comp_enabled(struct record *rec)
+{
+	return rec->opts.comp_level > 0;
+}
+
 static int process_synthesized_event(struct perf_tool *tool,
 				     union perf_event *event,
 				     struct perf_sample *sample __maybe_unused,
@@ -385,6 +482,11 @@
 {
 	struct record *rec = to;
 
+	if (record__comp_enabled(rec)) {
+		size = zstd_compress(rec->session, map->data, perf_mmap__mmap_len(map), bf, size);
+		bf   = map->data;
+	}
+
 	rec->samples++;
 	return record__write(rec, map, bf, size);
 }
@@ -582,7 +684,7 @@
 				 opts->auxtrace_mmap_pages,
 				 opts->auxtrace_snapshot_mode,
 				 opts->nr_cblocks, opts->affinity,
-				 opts->mmap_flush) < 0) {
+				 opts->mmap_flush, opts->comp_level) < 0) {
 		if (errno == EPERM) {
 			pr_err("Permission error mapping pages.\n"
 			       "Consider increasing "
@@ -771,6 +873,37 @@
 	}
 }
 
+static size_t process_comp_header(void *record, size_t increment)
+{
+	struct compressed_event *event = record;
+	size_t size = sizeof(*event);
+
+	if (increment) {
+		event->header.size += increment;
+		return increment;
+	}
+
+	event->header.type = PERF_RECORD_COMPRESSED;
+	event->header.size = size;
+
+	return size;
+}
+
+static size_t zstd_compress(struct perf_session *session, void *dst, size_t dst_size,
+			    void *src, size_t src_size)
+{
+	size_t compressed;
+	size_t max_record_size = PERF_SAMPLE_MAX_SIZE - sizeof(struct compressed_event) - 1;
+
+	compressed = zstd_compress_stream_to_records(&session->zstd_data, dst, dst_size, src, src_size,
+						     max_record_size, process_comp_header);
+
+	session->bytes_transferred += src_size;
+	session->bytes_compressed  += compressed;
+
+	return compressed;
+}
+
 static int record__mmap_read_evlist(struct record *rec, struct perf_evlist *evlist,
 				    bool overwrite, bool synch)
 {
@@ -779,7 +912,7 @@
 	int rc = 0;
 	struct perf_mmap *maps;
 	int trace_fd = rec->data.file.fd;
-	off_t off;
+	off_t off = 0;
 
 	if (!evlist)
 		return 0;
@@ -805,20 +938,14 @@
 				map->flush = 1;
 			}
 			if (!record__aio_enabled(rec)) {
-				if (perf_mmap__push(map, rec, record__pushfn) != 0) {
+				if (perf_mmap__push(map, rec, record__pushfn) < 0) {
 					if (synch)
 						map->flush = flush;
 					rc = -1;
 					goto out;
 				}
 			} else {
-				int idx;
-				/*
-				 * Call record__aio_sync() to wait till map->data buffer
-				 * becomes available after previous aio write request.
-				 */
-				idx = record__aio_sync(map, false);
-				if (perf_mmap__aio_push(map, rec, idx, record__aio_pushfn, &off) != 0) {
+				if (record__aio_push(rec, map, &off) < 0) {
 					record__aio_set_pos(trace_fd, off);
 					if (synch)
 						map->flush = flush;
@@ -888,6 +1015,8 @@
 		perf_header__clear_feat(&session->header, HEADER_CLOCKID);
 
 	perf_header__clear_feat(&session->header, HEADER_DIR_FORMAT);
+	if (!record__comp_enabled(rec))
+		perf_header__clear_feat(&session->header, HEADER_COMPRESSED);
 
 	perf_header__clear_feat(&session->header, HEADER_STAT);
 }
@@ -1186,6 +1315,7 @@
 	bool disabled = false, draining = false;
 	struct perf_evlist *sb_evlist = NULL;
 	int fd;
+	float ratio = 0;
 
 	atexit(record__sig_exit);
 	signal(SIGCHLD, sig_handler);
@@ -1215,6 +1345,14 @@
 	fd = perf_data__fd(data);
 	rec->session = session;
 
+	if (zstd_init(&session->zstd_data, rec->opts.comp_level) < 0) {
+		pr_err("Compression initialization failed.\n");
+		return -1;
+	}
+
+	session->header.env.comp_type  = PERF_COMP_ZSTD;
+	session->header.env.comp_level = rec->opts.comp_level;
+
 	record__init_features(rec);
 
 	if (rec->opts.use_clockid && rec->opts.clockid_res_ns)
@@ -1244,6 +1382,7 @@
 		err = -1;
 		goto out_child;
 	}
+	session->header.env.comp_mmap_len = session->evlist->mmap_len;
 
 	err = bpf__apply_obj_config();
 	if (err) {
@@ -1491,6 +1630,11 @@
 	record__mmap_read_all(rec, true);
 	record__aio_mmap_read_sync(rec);
 
+	if (rec->session->bytes_transferred && rec->session->bytes_compressed) {
+		ratio = (float)rec->session->bytes_transferred/(float)rec->session->bytes_compressed;
+		session->header.env.comp_ratio = ratio + 0.5;
+	}
+
 	if (forks) {
 		int exit_status;
 
@@ -1537,12 +1681,19 @@
 		else
 			samples[0] = '\0';
 
-		fprintf(stderr,	"[ perf record: Captured and wrote %.3f MB %s%s%s ]\n",
+		fprintf(stderr,	"[ perf record: Captured and wrote %.3f MB %s%s%s",
 			perf_data__size(data) / 1024.0 / 1024.0,
 			data->path, postfix, samples);
+		if (ratio) {
+			fprintf(stderr,	", compressed (original %.3f MB, ratio is %.3f)",
+					rec->session->bytes_transferred / 1024.0 / 1024.0,
+					ratio);
+		}
+		fprintf(stderr, " ]\n");
 	}
 
 out_delete_session:
+	zstd_fini(&session->zstd_data);
 	perf_session__delete(session);
 
 	if (!opts->no_bpf_event)
@@ -2017,10 +2168,10 @@
 		    "use per-thread mmaps"),
 	OPT_CALLBACK_OPTARG('I', "intr-regs", &record.opts.sample_intr_regs, NULL, "any register",
 		    "sample selected machine registers on interrupt,"
-		    " use -I ? to list register names", parse_regs),
+		    " use '-I?' to list register names", parse_intr_regs),
 	OPT_CALLBACK_OPTARG(0, "user-regs", &record.opts.sample_user_regs, NULL, "any register",
 		    "sample selected machine registers on interrupt,"
-		    " use -I ? to list register names", parse_regs),
+		    " use '--user-regs=?' to list register names", parse_user_regs),
 	OPT_BOOLEAN(0, "running-time", &record.opts.running_time,
 		    "Record running/enabled time of read (:S) events"),
 	OPT_CALLBACK('k', "clockid", &record.opts,
@@ -2068,6 +2219,11 @@
 	OPT_CALLBACK(0, "affinity", &record.opts, "node|cpu",
 		     "Set affinity mask of trace reading thread to NUMA node cpu mask or cpu of processed mmap buffer",
 		     record__parse_affinity),
+#ifdef HAVE_ZSTD_SUPPORT
+	OPT_CALLBACK_OPTARG('z', "compression-level", &record.opts, &comp_level_default,
+			    "n", "Compressed records using specified level (default: 1 - fastest compression, 22 - greatest compression)",
+			    record__parse_comp_level),
+#endif
 	OPT_END()
 };
 
@@ -2127,6 +2283,12 @@
 			"cgroup monitoring only available in system-wide mode");
 
 	}
+
+	if (rec->opts.comp_level != 0) {
+		pr_debug("Compression enabled, disabling build id collection at the end of the session.\n");
+		rec->no_buildid = true;
+	}
+
 	if (rec->opts.record_switch_events &&
 	    !perf_can_record_switch_events()) {
 		ui__error("kernel does not support recording context switch events\n");
@@ -2272,12 +2434,15 @@
 
 	if (rec->opts.nr_cblocks > nr_cblocks_max)
 		rec->opts.nr_cblocks = nr_cblocks_max;
-	if (verbose > 0)
-		pr_info("nr_cblocks: %d\n", rec->opts.nr_cblocks);
+	pr_debug("nr_cblocks: %d\n", rec->opts.nr_cblocks);
 
 	pr_debug("affinity: %s\n", affinity_tags[rec->opts.affinity]);
 	pr_debug("mmap flush: %d\n", rec->opts.mmap_flush);
 
+	if (rec->opts.comp_level > comp_level_max)
+		rec->opts.comp_level = comp_level_max;
+	pr_debug("comp level: %d\n", rec->opts.comp_level);
+
 	err = __cmd_record(&record, argc, argv);
 out:
 	perf_evlist__delete(rec->evlist);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 4054eb1..1ca533f 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -136,9 +136,6 @@
 	if (!ui__has_annotation() && !rep->symbol_ipc)
 		return 0;
 
-	hist__account_cycles(sample->branch_stack, al, sample,
-			     rep->nonany_branch_mode);
-
 	if (sort__mode == SORT_MODE__BRANCH) {
 		bi = he->branch_info;
 		err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
@@ -181,9 +178,6 @@
 	if (!ui__has_annotation() && !rep->symbol_ipc)
 		return 0;
 
-	hist__account_cycles(sample->branch_stack, al, sample,
-			     rep->nonany_branch_mode);
-
 	bi = he->branch_info;
 	err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 	if (err)
@@ -282,6 +276,11 @@
 	if (al.map != NULL)
 		al.map->dso->hit = 1;
 
+	if (ui__has_annotation() || rep->symbol_ipc) {
+		hist__account_cycles(sample->branch_stack, &al, sample,
+				     rep->nonany_branch_mode);
+	}
+
 	ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
 	if (ret < 0)
 		pr_debug("problem adding hist entry, skipping event\n");
@@ -1259,6 +1258,9 @@
 	if (session == NULL)
 		return -1;
 
+	if (zstd_init(&(session->zstd_data), 0) < 0)
+		pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
+
 	if (report.queue_size) {
 		ordered_events__set_alloc_size(&session->ordered_events,
 					       report.queue_size);
@@ -1449,7 +1451,7 @@
 error:
 	if (report.ptime_range)
 		zfree(&report.ptime_range);
-
+	zstd_fini(&(session->zstd_data));
 	perf_session__delete(session);
 	return ret;
 }
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index a3c0608..24b8e69 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -847,6 +847,18 @@
 	return perf_stat__get_aggr(config, perf_stat__get_core, map, idx);
 }
 
+static bool term_percore_set(void)
+{
+	struct perf_evsel *counter;
+
+	evlist__for_each_entry(evsel_list, counter) {
+		if (counter->percore)
+			return true;
+	}
+
+	return false;
+}
+
 static int perf_stat_init_aggr_mode(void)
 {
 	int nr;
@@ -867,6 +879,15 @@
 		stat_config.aggr_get_id = perf_stat__get_core_cached;
 		break;
 	case AGGR_NONE:
+		if (term_percore_set()) {
+			if (cpu_map__build_core_map(evsel_list->cpus,
+						    &stat_config.aggr_map)) {
+				perror("cannot build core map");
+				return -1;
+			}
+			stat_config.aggr_get_id = perf_stat__get_core_cached;
+		}
+		break;
 	case AGGR_GLOBAL:
 	case AGGR_THREAD:
 	case AGGR_UNSET:
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 369eae6..d59dee6 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -86,6 +86,7 @@
 	int	     nr_cblocks;
 	int	     affinity;
 	int	     mmap_flush;
+	unsigned int comp_level;
 };
 
 enum perf_affinity {
diff --git a/tools/perf/pmu-events/arch/arm64/arm/cortex-a57-a72/core-imp-def.json b/tools/perf/pmu-events/arch/arm64/arm/cortex-a57-a72/core-imp-def.json
new file mode 100644
index 0000000..0ac9b79
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/arm/cortex-a57-a72/core-imp-def.json
@@ -0,0 +1,179 @@
+[
+    {
+        "ArchStdEvent": "L1D_CACHE_RD",
+    },
+    {
+        "ArchStdEvent": "L1D_CACHE_WR",
+    },
+    {
+        "ArchStdEvent": "L1D_CACHE_REFILL_RD",
+    },
+    {
+        "ArchStdEvent": "L1D_CACHE_REFILL_WR",
+    },
+    {
+        "ArchStdEvent": "L1D_CACHE_WB_VICTIM",
+    },
+    {
+        "ArchStdEvent": "L1D_CACHE_WB_CLEAN",
+    },
+    {
+        "ArchStdEvent": "L1D_CACHE_INVAL",
+    },
+    {
+        "ArchStdEvent": "L1D_TLB_REFILL_RD",
+    },
+    {
+        "ArchStdEvent": "L1D_TLB_REFILL_WR",
+    },
+    {
+        "ArchStdEvent": "L2D_CACHE_RD",
+    },
+    {
+        "ArchStdEvent": "L2D_CACHE_WR",
+    },
+    {
+        "ArchStdEvent": "L2D_CACHE_REFILL_RD",
+    },
+    {
+        "ArchStdEvent": "L2D_CACHE_REFILL_WR",
+    },
+    {
+        "ArchStdEvent": "L2D_CACHE_WB_VICTIM",
+    },
+    {
+        "ArchStdEvent": "L2D_CACHE_WB_CLEAN",
+    },
+    {
+        "ArchStdEvent": "L2D_CACHE_INVAL",
+    },
+    {
+        "ArchStdEvent": "BUS_ACCESS_RD",
+    },
+    {
+        "ArchStdEvent": "BUS_ACCESS_WR",
+    },
+    {
+        "ArchStdEvent": "BUS_ACCESS_SHARED",
+    },
+    {
+        "ArchStdEvent": "BUS_ACCESS_NOT_SHARED",
+    },
+    {
+        "ArchStdEvent": "BUS_ACCESS_NORMAL",
+    },
+    {
+        "ArchStdEvent": "BUS_ACCESS_PERIPH",
+    },
+    {
+        "ArchStdEvent": "MEM_ACCESS_RD",
+    },
+    {
+        "ArchStdEvent": "MEM_ACCESS_WR",
+    },
+    {
+        "ArchStdEvent": "UNALIGNED_LD_SPEC",
+    },
+    {
+        "ArchStdEvent": "UNALIGNED_ST_SPEC",
+    },
+    {
+        "ArchStdEvent": "UNALIGNED_LDST_SPEC",
+    },
+    {
+        "ArchStdEvent": "LDREX_SPEC",
+    },
+    {
+        "ArchStdEvent": "STREX_PASS_SPEC",
+    },
+    {
+        "ArchStdEvent": "STREX_FAIL_SPEC",
+    },
+    {
+        "ArchStdEvent": "LD_SPEC",
+    },
+    {
+        "ArchStdEvent": "ST_SPEC",
+    },
+    {
+        "ArchStdEvent": "LDST_SPEC",
+    },
+    {
+        "ArchStdEvent": "DP_SPEC",
+    },
+    {
+        "ArchStdEvent": "ASE_SPEC",
+    },
+    {
+        "ArchStdEvent": "VFP_SPEC",
+    },
+    {
+        "ArchStdEvent": "PC_WRITE_SPEC",
+    },
+    {
+        "ArchStdEvent": "CRYPTO_SPEC",
+    },
+    {
+        "ArchStdEvent": "BR_IMMED_SPEC",
+    },
+    {
+        "ArchStdEvent": "BR_RETURN_SPEC",
+    },
+    {
+        "ArchStdEvent": "BR_INDIRECT_SPEC",
+    },
+    {
+        "ArchStdEvent": "ISB_SPEC",
+    },
+    {
+        "ArchStdEvent": "DSB_SPEC",
+    },
+    {
+        "ArchStdEvent": "DMB_SPEC",
+    },
+    {
+        "ArchStdEvent": "EXC_UNDEF",
+    },
+    {
+        "ArchStdEvent": "EXC_SVC",
+    },
+    {
+        "ArchStdEvent": "EXC_PABORT",
+    },
+    {
+        "ArchStdEvent": "EXC_DABORT",
+    },
+    {
+        "ArchStdEvent": "EXC_IRQ",
+    },
+    {
+        "ArchStdEvent": "EXC_FIQ",
+    },
+    {
+        "ArchStdEvent": "EXC_SMC",
+    },
+    {
+        "ArchStdEvent": "EXC_HVC",
+    },
+    {
+        "ArchStdEvent": "EXC_TRAP_PABORT",
+    },
+    {
+        "ArchStdEvent": "EXC_TRAP_DABORT",
+    },
+    {
+        "ArchStdEvent": "EXC_TRAP_OTHER",
+    },
+    {
+        "ArchStdEvent": "EXC_TRAP_IRQ",
+    },
+    {
+        "ArchStdEvent": "EXC_TRAP_FIQ",
+    },
+    {
+        "ArchStdEvent": "RC_LD_SPEC",
+    },
+    {
+        "ArchStdEvent": "RC_ST_SPEC",
+    },
+]
diff --git a/tools/perf/pmu-events/arch/arm64/mapfile.csv b/tools/perf/pmu-events/arch/arm64/mapfile.csv
index 59cd860..927fcdd 100644
--- a/tools/perf/pmu-events/arch/arm64/mapfile.csv
+++ b/tools/perf/pmu-events/arch/arm64/mapfile.csv
@@ -12,7 +12,10 @@
 #
 #
 #Family-model,Version,Filename,EventType
-0x00000000410fd03[[:xdigit:]],v1,arm/cortex-a53,core
+0x00000000410fd030,v1,arm/cortex-a53,core
+0x00000000420f1000,v1,arm/cortex-a53,core
+0x00000000410fd070,v1,arm/cortex-a57-a72,core
+0x00000000410fd080,v1,arm/cortex-a57-a72,core
 0x00000000420f5160,v1,cavium/thunderx2,core
 0x00000000430f0af0,v1,cavium/thunderx2,core
 0x00000000480fd010,v1,hisilicon/hip08,core
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 68c92bb..58f77fd 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -235,6 +235,7 @@
 	{ "iMPH-U", "uncore_arb" },
 	{ "CPU-M-CF", "cpum_cf" },
 	{ "CPU-M-SF", "cpum_sf" },
+	{ "UPI LL", "uncore_upi" },
 	{}
 };
 
@@ -414,7 +415,6 @@
 				char *metric_name, char *metric_group)
 {
 	struct event_struct *es;
-	struct stat *sb = data;
 
 	es = malloc(sizeof(*es));
 	if (!es)
diff --git a/tools/perf/scripts/python/exported-sql-viewer.py b/tools/perf/scripts/python/exported-sql-viewer.py
index 74ef92f..affed7d 100755
--- a/tools/perf/scripts/python/exported-sql-viewer.py
+++ b/tools/perf/scripts/python/exported-sql-viewer.py
@@ -456,6 +456,10 @@
 		self.query_done = False;
 		self.child_count = 0
 		self.child_items = []
+		if parent_item:
+			self.level = parent_item.level + 1
+		else:
+			self.level = 0
 
 	def getChildItem(self, row):
 		return self.child_items[row]
@@ -877,9 +881,14 @@
 		super(TreeWindowBase, self).__init__(parent)
 
 		self.model = None
-		self.view = None
 		self.find_bar = None
 
+		self.view = QTreeView()
+		self.view.setSelectionMode(QAbstractItemView.ContiguousSelection)
+		self.view.CopyCellsToClipboard = CopyTreeCellsToClipboard
+
+		self.context_menu = TreeContextMenu(self.view)
+
 	def DisplayFound(self, ids):
 		if not len(ids):
 			return False
@@ -921,7 +930,6 @@
 
 		self.model = LookupCreateModel("Context-Sensitive Call Graph", lambda x=glb: CallGraphModel(x))
 
-		self.view = QTreeView()
 		self.view.setModel(self.model)
 
 		for c, w in ((0, 250), (1, 100), (2, 60), (3, 70), (4, 70), (5, 100)):
@@ -944,7 +952,6 @@
 
 		self.model = LookupCreateModel("Call Tree", lambda x=glb: CallTreeModel(x))
 
-		self.view = QTreeView()
 		self.view.setModel(self.model)
 
 		for c, w in ((0, 230), (1, 100), (2, 100), (3, 70), (4, 70), (5, 100)):
@@ -1649,10 +1656,14 @@
 
 		self.view = QTreeView()
 		self.view.setUniformRowHeights(True)
+		self.view.setSelectionMode(QAbstractItemView.ContiguousSelection)
+		self.view.CopyCellsToClipboard = CopyTreeCellsToClipboard
 		self.view.setModel(self.model)
 
 		self.ResizeColumnsToContents()
 
+		self.context_menu = TreeContextMenu(self.view)
+
 		self.find_bar = FindBar(self, self, True)
 
 		self.finder = ChildDataItemFinder(self.model.root)
@@ -2261,6 +2272,240 @@
 		self.data_model.rowsInserted.disconnect(self.UpdateColumnWidths)
 		self.ResizeColumnsToContents()
 
+# Convert value to CSV
+
+def ToCSValue(val):
+	if '"' in val:
+		val = val.replace('"', '""')
+	if "," in val or '"' in val:
+		val = '"' + val + '"'
+	return val
+
+# Key to sort table model indexes by row / column, assuming fewer than 1000 columns
+
+glb_max_cols = 1000
+
+def RowColumnKey(a):
+	return a.row() * glb_max_cols + a.column()
+
+# Copy selected table cells to clipboard
+
+def CopyTableCellsToClipboard(view, as_csv=False, with_hdr=False):
+	indexes = sorted(view.selectedIndexes(), key=RowColumnKey)
+	idx_cnt = len(indexes)
+	if not idx_cnt:
+		return
+	if idx_cnt == 1:
+		with_hdr=False
+	min_row = indexes[0].row()
+	max_row = indexes[0].row()
+	min_col = indexes[0].column()
+	max_col = indexes[0].column()
+	for i in indexes:
+		min_row = min(min_row, i.row())
+		max_row = max(max_row, i.row())
+		min_col = min(min_col, i.column())
+		max_col = max(max_col, i.column())
+	if max_col > glb_max_cols:
+		raise RuntimeError("glb_max_cols is too low")
+	max_width = [0] * (1 + max_col - min_col)
+	for i in indexes:
+		c = i.column() - min_col
+		max_width[c] = max(max_width[c], len(str(i.data())))
+	text = ""
+	pad = ""
+	sep = ""
+	if with_hdr:
+		model = indexes[0].model()
+		for col in range(min_col, max_col + 1):
+			val = model.headerData(col, Qt.Horizontal)
+			if as_csv:
+				text += sep + ToCSValue(val)
+				sep = ","
+			else:
+				c = col - min_col
+				max_width[c] = max(max_width[c], len(val))
+				width = max_width[c]
+				align = model.headerData(col, Qt.Horizontal, Qt.TextAlignmentRole)
+				if align & Qt.AlignRight:
+					val = val.rjust(width)
+				text += pad + sep + val
+				pad = " " * (width - len(val))
+				sep = "  "
+		text += "\n"
+		pad = ""
+		sep = ""
+	last_row = min_row
+	for i in indexes:
+		if i.row() > last_row:
+			last_row = i.row()
+			text += "\n"
+			pad = ""
+			sep = ""
+		if as_csv:
+			text += sep + ToCSValue(str(i.data()))
+			sep = ","
+		else:
+			width = max_width[i.column() - min_col]
+			if i.data(Qt.TextAlignmentRole) & Qt.AlignRight:
+				val = str(i.data()).rjust(width)
+			else:
+				val = str(i.data())
+			text += pad + sep + val
+			pad = " " * (width - len(val))
+			sep = "  "
+	QApplication.clipboard().setText(text)
+
+def CopyTreeCellsToClipboard(view, as_csv=False, with_hdr=False):
+	indexes = view.selectedIndexes()
+	if not len(indexes):
+		return
+
+	selection = view.selectionModel()
+
+	first = None
+	for i in indexes:
+		above = view.indexAbove(i)
+		if not selection.isSelected(above):
+			first = i
+			break
+
+	if first is None:
+		raise RuntimeError("CopyTreeCellsToClipboard internal error")
+
+	model = first.model()
+	row_cnt = 0
+	col_cnt = model.columnCount(first)
+	max_width = [0] * col_cnt
+
+	indent_sz = 2
+	indent_str = " " * indent_sz
+
+	expanded_mark_sz = 2
+	if sys.version_info[0] == 3:
+		expanded_mark = "\u25BC "
+		not_expanded_mark = "\u25B6 "
+	else:
+		expanded_mark = unicode(chr(0xE2) + chr(0x96) + chr(0xBC) + " ", "utf-8")
+		not_expanded_mark =  unicode(chr(0xE2) + chr(0x96) + chr(0xB6) + " ", "utf-8")
+	leaf_mark = "  "
+
+	if not as_csv:
+		pos = first
+		while True:
+			row_cnt += 1
+			row = pos.row()
+			for c in range(col_cnt):
+				i = pos.sibling(row, c)
+				if c:
+					n = len(str(i.data()))
+				else:
+					n = len(str(i.data()).strip())
+					n += (i.internalPointer().level - 1) * indent_sz
+					n += expanded_mark_sz
+				max_width[c] = max(max_width[c], n)
+			pos = view.indexBelow(pos)
+			if not selection.isSelected(pos):
+				break
+
+	text = ""
+	pad = ""
+	sep = ""
+	if with_hdr:
+		for c in range(col_cnt):
+			val = model.headerData(c, Qt.Horizontal, Qt.DisplayRole).strip()
+			if as_csv:
+				text += sep + ToCSValue(val)
+				sep = ","
+			else:
+				max_width[c] = max(max_width[c], len(val))
+				width = max_width[c]
+				align = model.headerData(c, Qt.Horizontal, Qt.TextAlignmentRole)
+				if align & Qt.AlignRight:
+					val = val.rjust(width)
+				text += pad + sep + val
+				pad = " " * (width - len(val))
+				sep = "   "
+		text += "\n"
+		pad = ""
+		sep = ""
+
+	pos = first
+	while True:
+		row = pos.row()
+		for c in range(col_cnt):
+			i = pos.sibling(row, c)
+			val = str(i.data())
+			if not c:
+				if model.hasChildren(i):
+					if view.isExpanded(i):
+						mark = expanded_mark
+					else:
+						mark = not_expanded_mark
+				else:
+					mark = leaf_mark
+				val = indent_str * (i.internalPointer().level - 1) + mark + val.strip()
+			if as_csv:
+				text += sep + ToCSValue(val)
+				sep = ","
+			else:
+				width = max_width[c]
+				if c and i.data(Qt.TextAlignmentRole) & Qt.AlignRight:
+					val = val.rjust(width)
+				text += pad + sep + val
+				pad = " " * (width - len(val))
+				sep = "   "
+		pos = view.indexBelow(pos)
+		if not selection.isSelected(pos):
+			break
+		text = text.rstrip() + "\n"
+		pad = ""
+		sep = ""
+
+	QApplication.clipboard().setText(text)
+
+def CopyCellsToClipboard(view, as_csv=False, with_hdr=False):
+	view.CopyCellsToClipboard(view, as_csv, with_hdr)
+
+def CopyCellsToClipboardHdr(view):
+	CopyCellsToClipboard(view, False, True)
+
+def CopyCellsToClipboardCSV(view):
+	CopyCellsToClipboard(view, True, True)
+
+# Context menu
+
+class ContextMenu(object):
+
+	def __init__(self, view):
+		self.view = view
+		self.view.setContextMenuPolicy(Qt.CustomContextMenu)
+		self.view.customContextMenuRequested.connect(self.ShowContextMenu)
+
+	def ShowContextMenu(self, pos):
+		menu = QMenu(self.view)
+		self.AddActions(menu)
+		menu.exec_(self.view.mapToGlobal(pos))
+
+	def AddCopy(self, menu):
+		menu.addAction(CreateAction("&Copy selection", "Copy to clipboard", lambda: CopyCellsToClipboardHdr(self.view), self.view))
+		menu.addAction(CreateAction("Copy selection as CS&V", "Copy to clipboard as CSV", lambda: CopyCellsToClipboardCSV(self.view), self.view))
+
+	def AddActions(self, menu):
+		self.AddCopy(menu)
+
+class TreeContextMenu(ContextMenu):
+
+	def __init__(self, view):
+		super(TreeContextMenu, self).__init__(view)
+
+	def AddActions(self, menu):
+		i = self.view.currentIndex()
+		text = str(i.data()).strip()
+		if len(text):
+			menu.addAction(CreateAction('Copy "' + text + '"', "Copy to clipboard", lambda: QApplication.clipboard().setText(text), self.view))
+		self.AddCopy(menu)
+
 # Table window
 
 class TableWindow(QMdiSubWindow, ResizeColumnsToContentsBase):
@@ -2279,9 +2524,13 @@
 		self.view.verticalHeader().setVisible(False)
 		self.view.sortByColumn(-1, Qt.AscendingOrder)
 		self.view.setSortingEnabled(True)
+		self.view.setSelectionMode(QAbstractItemView.ContiguousSelection)
+		self.view.CopyCellsToClipboard = CopyTableCellsToClipboard
 
 		self.ResizeColumnsToContents()
 
+		self.context_menu = ContextMenu(self.view)
+
 		self.find_bar = FindBar(self, self, True)
 
 		self.finder = ChildDataItemFinder(self.data_model)
@@ -2395,6 +2644,10 @@
 		self.view.setModel(self.model)
 		self.view.setEditTriggers(QAbstractItemView.NoEditTriggers)
 		self.view.verticalHeader().setVisible(False)
+		self.view.setSelectionMode(QAbstractItemView.ContiguousSelection)
+		self.view.CopyCellsToClipboard = CopyTableCellsToClipboard
+
+		self.context_menu = ContextMenu(self.view)
 
 		self.ResizeColumnsToContents()
 
@@ -2660,6 +2913,60 @@
 
 		self.setCentralWidget(self.text)
 
+# PostqreSQL server version
+
+def PostqreSQLServerVersion(db):
+	query = QSqlQuery(db)
+	QueryExec(query, "SELECT VERSION()")
+	if query.next():
+		v_str = query.value(0)
+		v_list = v_str.strip().split(" ")
+		if v_list[0] == "PostgreSQL" and v_list[2] == "on":
+			return v_list[1]
+		return v_str
+	return "Unknown"
+
+# SQLite version
+
+def SQLiteVersion(db):
+	query = QSqlQuery(db)
+	QueryExec(query, "SELECT sqlite_version()")
+	if query.next():
+		return query.value(0)
+	return "Unknown"
+
+# About dialog
+
+class AboutDialog(QDialog):
+
+	def __init__(self, glb, parent=None):
+		super(AboutDialog, self).__init__(parent)
+
+		self.setWindowTitle("About Exported SQL Viewer")
+		self.setMinimumWidth(300)
+
+		pyside_version = "1" if pyside_version_1 else "2"
+
+		text = "<pre>"
+		text += "Python version:     " + sys.version.split(" ")[0] + "\n"
+		text += "PySide version:     " + pyside_version + "\n"
+		text += "Qt version:         " + qVersion() + "\n"
+		if glb.dbref.is_sqlite3:
+			text += "SQLite version:     " + SQLiteVersion(glb.db) + "\n"
+		else:
+			text += "PostqreSQL version: " + PostqreSQLServerVersion(glb.db) + "\n"
+		text += "</pre>"
+
+		self.text = QTextBrowser()
+		self.text.setHtml(text)
+		self.text.setReadOnly(True)
+		self.text.setOpenExternalLinks(True)
+
+		self.vbox = QVBoxLayout()
+		self.vbox.addWidget(self.text)
+
+		self.setLayout(self.vbox);
+
 # Font resize
 
 def ResizeFont(widget, diff):
@@ -2732,6 +3039,8 @@
 		file_menu.addAction(CreateExitAction(glb.app, self))
 
 		edit_menu = menu.addMenu("&Edit")
+		edit_menu.addAction(CreateAction("&Copy", "Copy to clipboard", self.CopyToClipboard, self, QKeySequence.Copy))
+		edit_menu.addAction(CreateAction("Copy as CS&V", "Copy to clipboard as CSV", self.CopyToClipboardCSV, self))
 		edit_menu.addAction(CreateAction("&Find...", "Find items", self.Find, self, QKeySequence.Find))
 		edit_menu.addAction(CreateAction("Fetch &more records...", "Fetch more records", self.FetchMoreRecords, self, [QKeySequence(Qt.Key_F8)]))
 		edit_menu.addAction(CreateAction("&Shrink Font", "Make text smaller", self.ShrinkFont, self, [QKeySequence("Ctrl+-")]))
@@ -2755,6 +3064,21 @@
 
 		help_menu = menu.addMenu("&Help")
 		help_menu.addAction(CreateAction("&Exported SQL Viewer Help", "Helpful information", self.Help, self, QKeySequence.HelpContents))
+		help_menu.addAction(CreateAction("&About Exported SQL Viewer", "About this application", self.About, self))
+
+	def Try(self, fn):
+		win = self.mdi_area.activeSubWindow()
+		if win:
+			try:
+				fn(win.view)
+			except:
+				pass
+
+	def CopyToClipboard(self):
+		self.Try(CopyCellsToClipboardHdr)
+
+	def CopyToClipboardCSV(self):
+		self.Try(CopyCellsToClipboardCSV)
 
 	def Find(self):
 		win = self.mdi_area.activeSubWindow()
@@ -2773,12 +3097,10 @@
 				pass
 
 	def ShrinkFont(self):
-		win = self.mdi_area.activeSubWindow()
-		ShrinkFont(win.view)
+		self.Try(ShrinkFont)
 
 	def EnlargeFont(self):
-		win = self.mdi_area.activeSubWindow()
-		EnlargeFont(win.view)
+		self.Try(EnlargeFont)
 
 	def EventMenu(self, events, reports_menu):
 		branches_events = 0
@@ -2828,6 +3150,10 @@
 	def Help(self):
 		HelpWindow(self.glb, self)
 
+	def About(self):
+		dialog = AboutDialog(self.glb, self)
+		dialog.exec_()
+
 # XED Disassembler
 
 class xed_state_t(Structure):
diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c
index 7f6c520..946ab4b 100644
--- a/tools/perf/tests/dso-data.c
+++ b/tools/perf/tests/dso-data.c
@@ -304,7 +304,7 @@
 	/* Make sure we did not leak any file descriptor. */
 	nr_end = open_files_cnt();
 	pr_debug("nr start %ld, nr stop %ld\n", nr, nr_end);
-	TEST_ASSERT_VAL("failed leadking files", nr == nr_end);
+	TEST_ASSERT_VAL("failed leaking files", nr == nr_end);
 	return 0;
 }
 
@@ -380,6 +380,6 @@
 	/* Make sure we did not leak any file descriptor. */
 	nr_end = open_files_cnt();
 	pr_debug("nr start %ld, nr stop %ld\n", nr, nr_end);
-	TEST_ASSERT_VAL("failed leadking files", nr == nr_end);
+	TEST_ASSERT_VAL("failed leaking files", nr == nr_end);
 	return 0;
 }
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index e467235..5363a12 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -107,7 +107,7 @@
 make_minimal        += NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1
 make_minimal        += NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1
 make_minimal        += NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1
-make_minimal        += NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
+make_minimal        += NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1
 
 # $(run) contains all available tests
 run := make_pure
diff --git a/tools/perf/tests/shell/record+zstd_comp_decomp.sh b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
new file mode 100755
index 0000000..5dcba80
--- /dev/null
+++ b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+# Zstd perf.data compression/decompression
+
+trace_file=$(mktemp /tmp/perf.data.XXX)
+perf_tool=perf
+
+skip_if_no_z_record() {
+	$perf_tool record -h 2>&1 | grep -q '\-z, \-\-compression\-level'
+}
+
+collect_z_record() {
+	echo "Collecting compressed record file:"
+	$perf_tool record -o $trace_file -g -z -F 5000 -- \
+		dd count=500 if=/dev/random of=/dev/null
+}
+
+check_compressed_stats() {
+	echo "Checking compressed events stats:"
+	$perf_tool report -i $trace_file --header --stats | \
+		grep -E "(# compressed : Zstd,)|(COMPRESSED events:)"
+}
+
+check_compressed_output() {
+	$perf_tool inject -i $trace_file -o $trace_file.decomp &&
+	$perf_tool report -i $trace_file --stdio | head -n -3 > $trace_file.comp.output &&
+	$perf_tool report -i $trace_file.decomp --stdio | head -n -3 > $trace_file.decomp.output &&
+	diff $trace_file.comp.output $trace_file.decomp.output
+}
+
+skip_if_no_z_record || exit 2
+collect_z_record && check_compressed_stats && check_compressed_output
+err=$?
+rm -f $trace_file*
+exit $err
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 8dd3102..6d5bbc8 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -145,6 +145,8 @@
 
 perf-$(CONFIG_ZLIB) += zlib.o
 perf-$(CONFIG_LZMA) += lzma.o
+perf-$(CONFIG_ZSTD) += zstd.o
+
 perf-y += demangle-java.o
 perf-y += demangle-rust.o
 
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 0976298..0b8573f 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1021,7 +1021,7 @@
 		float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
 
 		/* Hide data when there are too many overlaps. */
-		if (ch->reset >= 0x7fff || ch->reset >= ch->num / 2)
+		if (ch->reset >= 0x7fff)
 			return;
 
 		for (offset = start; offset <= end; offset++) {
diff --git a/tools/perf/util/compress.h b/tools/perf/util/compress.h
index 892e92e..0cd3369 100644
--- a/tools/perf/util/compress.h
+++ b/tools/perf/util/compress.h
@@ -2,6 +2,11 @@
 #ifndef PERF_COMPRESS_H
 #define PERF_COMPRESS_H
 
+#include <stdbool.h>
+#ifdef HAVE_ZSTD_SUPPORT
+#include <zstd.h>
+#endif
+
 #ifdef HAVE_ZLIB_SUPPORT
 int gzip_decompress_to_file(const char *input, int output_fd);
 bool gzip_is_compressed(const char *input);
@@ -12,4 +17,52 @@
 bool lzma_is_compressed(const char *input);
 #endif
 
+struct zstd_data {
+#ifdef HAVE_ZSTD_SUPPORT
+	ZSTD_CStream	*cstream;
+	ZSTD_DStream	*dstream;
+#endif
+};
+
+#ifdef HAVE_ZSTD_SUPPORT
+
+int zstd_init(struct zstd_data *data, int level);
+int zstd_fini(struct zstd_data *data);
+
+size_t zstd_compress_stream_to_records(struct zstd_data *data, void *dst, size_t dst_size,
+				       void *src, size_t src_size, size_t max_record_size,
+				       size_t process_header(void *record, size_t increment));
+
+size_t zstd_decompress_stream(struct zstd_data *data, void *src, size_t src_size,
+			      void *dst, size_t dst_size);
+#else /* !HAVE_ZSTD_SUPPORT */
+
+static inline int zstd_init(struct zstd_data *data __maybe_unused, int level __maybe_unused)
+{
+	return 0;
+}
+
+static inline int zstd_fini(struct zstd_data *data __maybe_unused)
+{
+	return 0;
+}
+
+static inline
+size_t zstd_compress_stream_to_records(struct zstd_data *data __maybe_unused,
+				       void *dst __maybe_unused, size_t dst_size __maybe_unused,
+				       void *src __maybe_unused, size_t src_size __maybe_unused,
+				       size_t max_record_size __maybe_unused,
+				       size_t process_header(void *record, size_t increment) __maybe_unused)
+{
+	return 0;
+}
+
+static inline size_t zstd_decompress_stream(struct zstd_data *data __maybe_unused, void *src __maybe_unused,
+					    size_t src_size __maybe_unused, void *dst __maybe_unused,
+					    size_t dst_size __maybe_unused)
+{
+	return 0;
+}
+#endif
+
 #endif /* PERF_COMPRESS_H */
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h
index 4f8e2b4..271a90b 100644
--- a/tools/perf/util/env.h
+++ b/tools/perf/util/env.h
@@ -62,6 +62,11 @@
 	struct cpu_topology_map	*cpu;
 	struct cpu_cache_level	*caches;
 	int			 caches_cnt;
+	u32			comp_ratio;
+	u32			comp_ver;
+	u32			comp_type;
+	u32			comp_level;
+	u32			comp_mmap_len;
 	struct numa_node	*numa_nodes;
 	struct memory_node	*memory_nodes;
 	unsigned long long	 memory_bsize;
@@ -80,6 +85,12 @@
 	} bpf_progs;
 };
 
+enum perf_compress_type {
+	PERF_COMP_NONE = 0,
+	PERF_COMP_ZSTD,
+	PERF_COMP_MAX
+};
+
 struct bpf_prog_info_node;
 struct btf_node;
 
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index ba7be74..d1ad6c4 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -68,6 +68,7 @@
 	[PERF_RECORD_EVENT_UPDATE]		= "EVENT_UPDATE",
 	[PERF_RECORD_TIME_CONV]			= "TIME_CONV",
 	[PERF_RECORD_HEADER_FEATURE]		= "FEATURE",
+	[PERF_RECORD_COMPRESSED]		= "COMPRESSED",
 };
 
 static const char *perf_ns__names[] = {
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 4e908ec..9e99955 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -255,6 +255,7 @@
 	PERF_RECORD_EVENT_UPDATE		= 78,
 	PERF_RECORD_TIME_CONV			= 79,
 	PERF_RECORD_HEADER_FEATURE		= 80,
+	PERF_RECORD_COMPRESSED			= 81,
 	PERF_RECORD_HEADER_MAX
 };
 
@@ -627,6 +628,11 @@
 	char				data[];
 };
 
+struct compressed_event {
+	struct perf_event_header	header;
+	char				data[];
+};
+
 union perf_event {
 	struct perf_event_header	header;
 	struct mmap_event		mmap;
@@ -660,6 +666,7 @@
 	struct feature_event		feat;
 	struct ksymbol_event		ksymbol_event;
 	struct bpf_event		bpf_event;
+	struct compressed_event		pack;
 };
 
 void perf_event__print_totals(void);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 4b6783ff..69d0fa8 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1009,7 +1009,8 @@
  */
 int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
 			 unsigned int auxtrace_pages,
-			 bool auxtrace_overwrite, int nr_cblocks, int affinity, int flush)
+			 bool auxtrace_overwrite, int nr_cblocks, int affinity, int flush,
+			 int comp_level)
 {
 	struct perf_evsel *evsel;
 	const struct cpu_map *cpus = evlist->cpus;
@@ -1019,7 +1020,8 @@
 	 * Its value is decided by evsel's write_backward.
 	 * So &mp should not be passed through const pointer.
 	 */
-	struct mmap_params mp = { .nr_cblocks = nr_cblocks, .affinity = affinity, .flush = flush };
+	struct mmap_params mp = { .nr_cblocks = nr_cblocks, .affinity = affinity, .flush = flush,
+				  .comp_level = comp_level };
 
 	if (!evlist->mmap)
 		evlist->mmap = perf_evlist__alloc_mmap(evlist, false);
@@ -1051,7 +1053,7 @@
 
 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages)
 {
-	return perf_evlist__mmap_ex(evlist, pages, 0, false, 0, PERF_AFFINITY_SYS, 1);
+	return perf_evlist__mmap_ex(evlist, pages, 0, false, 0, PERF_AFFINITY_SYS, 1, 0);
 }
 
 int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index c9a0f72..49354fe 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -178,7 +178,7 @@
 int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
 			 unsigned int auxtrace_pages,
 			 bool auxtrace_overwrite, int nr_cblocks,
-			 int affinity, int flush);
+			 int affinity, int flush, int comp_level);
 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages);
 void perf_evlist__munmap(struct perf_evlist *evlist);
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index a10cf4c..a6f572a 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -813,6 +813,8 @@
 			break;
 		case PERF_EVSEL__CONFIG_TERM_DRV_CFG:
 			break;
+		case PERF_EVSEL__CONFIG_TERM_PERCORE:
+			break;
 		default:
 			break;
 		}
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 6d190cb..cad54e8 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -50,6 +50,7 @@
 	PERF_EVSEL__CONFIG_TERM_OVERWRITE,
 	PERF_EVSEL__CONFIG_TERM_DRV_CFG,
 	PERF_EVSEL__CONFIG_TERM_BRANCH,
+	PERF_EVSEL__CONFIG_TERM_PERCORE,
 };
 
 struct perf_evsel_config_term {
@@ -67,6 +68,7 @@
 		bool	overwrite;
 		char	*branch;
 		unsigned long max_events;
+		bool	percore;
 	} val;
 	bool weak;
 };
@@ -158,6 +160,7 @@
 	struct perf_evsel	**metric_events;
 	bool			collect_stat;
 	bool			weak_group;
+	bool			percore;
 	const char		*pmu_name;
 	struct {
 		perf_evsel__sb_cb_t	*cb;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 2d2af2a..847ae51 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1344,6 +1344,30 @@
 	return ret;
 }
 
+static int write_compressed(struct feat_fd *ff __maybe_unused,
+			    struct perf_evlist *evlist __maybe_unused)
+{
+	int ret;
+
+	ret = do_write(ff, &(ff->ph->env.comp_ver), sizeof(ff->ph->env.comp_ver));
+	if (ret)
+		return ret;
+
+	ret = do_write(ff, &(ff->ph->env.comp_type), sizeof(ff->ph->env.comp_type));
+	if (ret)
+		return ret;
+
+	ret = do_write(ff, &(ff->ph->env.comp_level), sizeof(ff->ph->env.comp_level));
+	if (ret)
+		return ret;
+
+	ret = do_write(ff, &(ff->ph->env.comp_ratio), sizeof(ff->ph->env.comp_ratio));
+	if (ret)
+		return ret;
+
+	return do_write(ff, &(ff->ph->env.comp_mmap_len), sizeof(ff->ph->env.comp_mmap_len));
+}
+
 static void print_hostname(struct feat_fd *ff, FILE *fp)
 {
 	fprintf(fp, "# hostname : %s\n", ff->ph->env.hostname);
@@ -1688,6 +1712,13 @@
 	}
 }
 
+static void print_compressed(struct feat_fd *ff, FILE *fp)
+{
+	fprintf(fp, "# compressed : %s, level = %d, ratio = %d\n",
+		ff->ph->env.comp_type == PERF_COMP_ZSTD ? "Zstd" : "Unknown",
+		ff->ph->env.comp_level, ff->ph->env.comp_ratio);
+}
+
 static void print_pmu_mappings(struct feat_fd *ff, FILE *fp)
 {
 	const char *delimiter = "# pmu mappings: ";
@@ -2667,6 +2698,27 @@
 	return err;
 }
 
+static int process_compressed(struct feat_fd *ff,
+			      void *data __maybe_unused)
+{
+	if (do_read_u32(ff, &(ff->ph->env.comp_ver)))
+		return -1;
+
+	if (do_read_u32(ff, &(ff->ph->env.comp_type)))
+		return -1;
+
+	if (do_read_u32(ff, &(ff->ph->env.comp_level)))
+		return -1;
+
+	if (do_read_u32(ff, &(ff->ph->env.comp_ratio)))
+		return -1;
+
+	if (do_read_u32(ff, &(ff->ph->env.comp_mmap_len)))
+		return -1;
+
+	return 0;
+}
+
 struct feature_ops {
 	int (*write)(struct feat_fd *ff, struct perf_evlist *evlist);
 	void (*print)(struct feat_fd *ff, FILE *fp);
@@ -2730,6 +2782,7 @@
 	FEAT_OPN(DIR_FORMAT,	dir_format,	false),
 	FEAT_OPR(BPF_PROG_INFO, bpf_prog_info,  false),
 	FEAT_OPR(BPF_BTF,       bpf_btf,        false),
+	FEAT_OPR(COMPRESSED,	compressed,	false),
 };
 
 struct header_print_data {
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 386da49..5b3abe4 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -42,6 +42,7 @@
 	HEADER_DIR_FORMAT,
 	HEADER_BPF_PROG_INFO,
 	HEADER_BPF_BTF,
+	HEADER_COMPRESSED,
 	HEADER_LAST_FEATURE,
 	HEADER_FEAT_BITS	= 256,
 };
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index 872fab1..f4c3c84 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -58,6 +58,7 @@
 	INTEL_PT_STATE_NO_IP,
 	INTEL_PT_STATE_ERR_RESYNC,
 	INTEL_PT_STATE_IN_SYNC,
+	INTEL_PT_STATE_TNT_CONT,
 	INTEL_PT_STATE_TNT,
 	INTEL_PT_STATE_TIP,
 	INTEL_PT_STATE_TIP_PGD,
@@ -72,8 +73,9 @@
 	case INTEL_PT_STATE_NO_IP:
 	case INTEL_PT_STATE_ERR_RESYNC:
 	case INTEL_PT_STATE_IN_SYNC:
-	case INTEL_PT_STATE_TNT:
+	case INTEL_PT_STATE_TNT_CONT:
 		return true;
+	case INTEL_PT_STATE_TNT:
 	case INTEL_PT_STATE_TIP:
 	case INTEL_PT_STATE_TIP_PGD:
 	case INTEL_PT_STATE_FUP:
@@ -888,16 +890,20 @@
 	timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
 	masked_timestamp = timestamp & decoder->period_mask;
 	if (decoder->continuous_period) {
-		if (masked_timestamp != decoder->last_masked_timestamp)
+		if (masked_timestamp > decoder->last_masked_timestamp)
 			return 1;
 	} else {
 		timestamp += 1;
 		masked_timestamp = timestamp & decoder->period_mask;
-		if (masked_timestamp != decoder->last_masked_timestamp) {
+		if (masked_timestamp > decoder->last_masked_timestamp) {
 			decoder->last_masked_timestamp = masked_timestamp;
 			decoder->continuous_period = true;
 		}
 	}
+
+	if (masked_timestamp < decoder->last_masked_timestamp)
+		return decoder->period_ticks;
+
 	return decoder->period_ticks - (timestamp - masked_timestamp);
 }
 
@@ -926,7 +932,10 @@
 	case INTEL_PT_PERIOD_TICKS:
 		timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
 		masked_timestamp = timestamp & decoder->period_mask;
-		decoder->last_masked_timestamp = masked_timestamp;
+		if (masked_timestamp > decoder->last_masked_timestamp)
+			decoder->last_masked_timestamp = masked_timestamp;
+		else
+			decoder->last_masked_timestamp += decoder->period_ticks;
 		break;
 	case INTEL_PT_PERIOD_NONE:
 	case INTEL_PT_PERIOD_MTC:
@@ -1254,7 +1263,9 @@
 				return -ENOENT;
 			}
 			decoder->tnt.count -= 1;
-			if (!decoder->tnt.count)
+			if (decoder->tnt.count)
+				decoder->pkt_state = INTEL_PT_STATE_TNT_CONT;
+			else
 				decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
 			decoder->tnt.payload <<= 1;
 			decoder->state.from_ip = decoder->ip;
@@ -1285,7 +1296,9 @@
 
 		if (intel_pt_insn.branch == INTEL_PT_BR_CONDITIONAL) {
 			decoder->tnt.count -= 1;
-			if (!decoder->tnt.count)
+			if (decoder->tnt.count)
+				decoder->pkt_state = INTEL_PT_STATE_TNT_CONT;
+			else
 				decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
 			if (decoder->tnt.payload & BIT63) {
 				decoder->tnt.payload <<= 1;
@@ -1305,8 +1318,11 @@
 				return 0;
 			}
 			decoder->ip += intel_pt_insn.length;
-			if (!decoder->tnt.count)
+			if (!decoder->tnt.count) {
+				decoder->sample_timestamp = decoder->timestamp;
+				decoder->sample_insn_cnt = decoder->timestamp_insn_cnt;
 				return -EAGAIN;
+			}
 			decoder->tnt.payload <<= 1;
 			continue;
 		}
@@ -2365,6 +2381,7 @@
 			err = intel_pt_walk_trace(decoder);
 			break;
 		case INTEL_PT_STATE_TNT:
+		case INTEL_PT_STATE_TNT_CONT:
 			err = intel_pt_walk_tnt(decoder);
 			if (err == -EAGAIN)
 				err = intel_pt_walk_trace(decoder);
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 3c520ba..28a9541 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1234,8 +1234,9 @@
 	if (!file)
 		return NULL;
 
-	version[0] = '\0';
 	tmp = fgets(version, sizeof(version), file);
+	if (!tmp)
+		*version = '\0';
 	fclose(file);
 
 	name = strstr(version, prefix);
diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index ef3d79b..868c0b0 100644
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -157,6 +157,10 @@
 }
 
 #ifdef HAVE_AIO_SUPPORT
+static int perf_mmap__aio_enabled(struct perf_mmap *map)
+{
+	return map->aio.nr_cblocks > 0;
+}
 
 #ifdef HAVE_LIBNUMA_SUPPORT
 static int perf_mmap__aio_alloc(struct perf_mmap *map, int idx)
@@ -198,7 +202,7 @@
 
 	return 0;
 }
-#else
+#else /* !HAVE_LIBNUMA_SUPPORT */
 static int perf_mmap__aio_alloc(struct perf_mmap *map, int idx)
 {
 	map->aio.data[idx] = malloc(perf_mmap__mmap_len(map));
@@ -285,81 +289,12 @@
 	zfree(&map->aio.cblocks);
 	zfree(&map->aio.aiocb);
 }
-
-int perf_mmap__aio_push(struct perf_mmap *md, void *to, int idx,
-			int push(void *to, struct aiocb *cblock, void *buf, size_t size, off_t off),
-			off_t *off)
+#else /* !HAVE_AIO_SUPPORT */
+static int perf_mmap__aio_enabled(struct perf_mmap *map __maybe_unused)
 {
-	u64 head = perf_mmap__read_head(md);
-	unsigned char *data = md->base + page_size;
-	unsigned long size, size0 = 0;
-	void *buf;
-	int rc = 0;
-
-	rc = perf_mmap__read_init(md);
-	if (rc < 0)
-		return (rc == -EAGAIN) ? 0 : -1;
-
-	/*
-	 * md->base data is copied into md->data[idx] buffer to
-	 * release space in the kernel buffer as fast as possible,
-	 * thru perf_mmap__consume() below.
-	 *
-	 * That lets the kernel to proceed with storing more
-	 * profiling data into the kernel buffer earlier than other
-	 * per-cpu kernel buffers are handled.
-	 *
-	 * Coping can be done in two steps in case the chunk of
-	 * profiling data crosses the upper bound of the kernel buffer.
-	 * In this case we first move part of data from md->start
-	 * till the upper bound and then the reminder from the
-	 * beginning of the kernel buffer till the end of
-	 * the data chunk.
-	 */
-
-	size = md->end - md->start;
-
-	if ((md->start & md->mask) + size != (md->end & md->mask)) {
-		buf = &data[md->start & md->mask];
-		size = md->mask + 1 - (md->start & md->mask);
-		md->start += size;
-		memcpy(md->aio.data[idx], buf, size);
-		size0 = size;
-	}
-
-	buf = &data[md->start & md->mask];
-	size = md->end - md->start;
-	md->start += size;
-	memcpy(md->aio.data[idx] + size0, buf, size);
-
-	/*
-	 * Increment md->refcount to guard md->data[idx] buffer
-	 * from premature deallocation because md object can be
-	 * released earlier than aio write request started
-	 * on mmap->data[idx] is complete.
-	 *
-	 * perf_mmap__put() is done at record__aio_complete()
-	 * after started request completion.
-	 */
-	perf_mmap__get(md);
-
-	md->prev = head;
-	perf_mmap__consume(md);
-
-	rc = push(to, &md->aio.cblocks[idx], md->aio.data[idx], size0 + size, *off);
-	if (!rc) {
-		*off += size0 + size;
-	} else {
-		/*
-		 * Decrement md->refcount back if aio write
-		 * operation failed to start.
-		 */
-		perf_mmap__put(md);
-	}
-
-	return rc;
+	return 0;
 }
-#else
+
 static int perf_mmap__aio_mmap(struct perf_mmap *map __maybe_unused,
 			       struct mmap_params *mp __maybe_unused)
 {
@@ -374,6 +309,10 @@
 void perf_mmap__munmap(struct perf_mmap *map)
 {
 	perf_mmap__aio_munmap(map);
+	if (map->data != NULL) {
+		munmap(map->data, perf_mmap__mmap_len(map));
+		map->data = NULL;
+	}
 	if (map->base != NULL) {
 		munmap(map->base, perf_mmap__mmap_len(map));
 		map->base = NULL;
@@ -442,6 +381,19 @@
 
 	map->flush = mp->flush;
 
+	map->comp_level = mp->comp_level;
+
+	if (map->comp_level && !perf_mmap__aio_enabled(map)) {
+		map->data = mmap(NULL, perf_mmap__mmap_len(map), PROT_READ|PROT_WRITE,
+				 MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
+		if (map->data == MAP_FAILED) {
+			pr_debug2("failed to mmap data buffer, error %d\n",
+					errno);
+			map->data = NULL;
+			return -1;
+		}
+	}
+
 	if (auxtrace_mmap__mmap(&map->auxtrace_mmap,
 				&mp->auxtrace_mp, map->base, fd))
 		return -1;
@@ -540,7 +492,7 @@
 
 	rc = perf_mmap__read_init(md);
 	if (rc < 0)
-		return (rc == -EAGAIN) ? 0 : -1;
+		return (rc == -EAGAIN) ? 1 : -1;
 
 	size = md->end - md->start;
 
diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h
index b82f8c2..274ce38 100644
--- a/tools/perf/util/mmap.h
+++ b/tools/perf/util/mmap.h
@@ -40,6 +40,8 @@
 #endif
 	cpu_set_t	affinity_mask;
 	u64		flush;
+	void		*data;
+	int		comp_level;
 };
 
 /*
@@ -71,7 +73,7 @@
 };
 
 struct mmap_params {
-	int			    prot, mask, nr_cblocks, affinity, flush;
+	int prot, mask, nr_cblocks, affinity, flush, comp_level;
 	struct auxtrace_mmap_params auxtrace_mp;
 };
 
@@ -99,18 +101,6 @@
 
 int perf_mmap__push(struct perf_mmap *md, void *to,
 		    int push(struct perf_mmap *map, void *to, void *buf, size_t size));
-#ifdef HAVE_AIO_SUPPORT
-int perf_mmap__aio_push(struct perf_mmap *md, void *to, int idx,
-			int push(void *to, struct aiocb *cblock, void *buf, size_t size, off_t off),
-			off_t *off);
-#else
-static inline int perf_mmap__aio_push(struct perf_mmap *md __maybe_unused, void *to __maybe_unused, int idx __maybe_unused,
-	int push(void *to, struct aiocb *cblock, void *buf, size_t size, off_t off) __maybe_unused,
-	off_t *off __maybe_unused)
-{
-	return 0;
-}
-#endif
 
 size_t perf_mmap__mmap_len(struct perf_mmap *map);
 
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 4432bfe..cf0b9b8 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -950,6 +950,7 @@
 	[PARSE_EVENTS__TERM_TYPE_OVERWRITE]		= "overwrite",
 	[PARSE_EVENTS__TERM_TYPE_NOOVERWRITE]		= "no-overwrite",
 	[PARSE_EVENTS__TERM_TYPE_DRV_CFG]		= "driver-config",
+	[PARSE_EVENTS__TERM_TYPE_PERCORE]		= "percore",
 };
 
 static bool config_term_shrinked;
@@ -970,6 +971,7 @@
 	case PARSE_EVENTS__TERM_TYPE_CONFIG2:
 	case PARSE_EVENTS__TERM_TYPE_NAME:
 	case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
+	case PARSE_EVENTS__TERM_TYPE_PERCORE:
 		return true;
 	default:
 		if (!err)
@@ -1061,6 +1063,14 @@
 	case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
 		CHECK_TYPE_VAL(NUM);
 		break;
+	case PARSE_EVENTS__TERM_TYPE_PERCORE:
+		CHECK_TYPE_VAL(NUM);
+		if ((unsigned int)term->val.num > 1) {
+			err->str = strdup("expected 0 or 1");
+			err->idx = term->err_val;
+			return -EINVAL;
+		}
+		break;
 	default:
 		err->str = strdup("unknown term");
 		err->idx = term->err_term;
@@ -1199,6 +1209,10 @@
 		case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
 			ADD_CONFIG_TERM(DRV_CFG, drv_cfg, term->val.str);
 			break;
+		case PARSE_EVENTS__TERM_TYPE_PERCORE:
+			ADD_CONFIG_TERM(PERCORE, percore,
+					term->val.num ? true : false);
+			break;
 		default:
 			break;
 		}
@@ -1260,6 +1274,18 @@
 	return add_event_tool(list, &parse_state->idx, tool_event);
 }
 
+static bool config_term_percore(struct list_head *config_terms)
+{
+	struct perf_evsel_config_term *term;
+
+	list_for_each_entry(term, config_terms, list) {
+		if (term->type == PERF_EVSEL__CONFIG_TERM_PERCORE)
+			return term->val.percore;
+	}
+
+	return false;
+}
+
 int parse_events_add_pmu(struct parse_events_state *parse_state,
 			 struct list_head *list, char *name,
 			 struct list_head *head_config,
@@ -1333,6 +1359,7 @@
 		evsel->metric_name = info.metric_name;
 		evsel->pmu_name = name;
 		evsel->use_uncore_alias = use_uncore_alias;
+		evsel->percore = config_term_percore(&evsel->config_terms);
 	}
 
 	return evsel ? 0 : -ENOMEM;
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index a052cd6..f7139e1 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -75,6 +75,7 @@
 	PARSE_EVENTS__TERM_TYPE_NOOVERWRITE,
 	PARSE_EVENTS__TERM_TYPE_OVERWRITE,
 	PARSE_EVENTS__TERM_TYPE_DRV_CFG,
+	PARSE_EVENTS__TERM_TYPE_PERCORE,
 	__PARSE_EVENTS__TERM_TYPE_NR,
 };
 
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index c54bfe8..ca609887 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -283,6 +283,7 @@
 no-inherit		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); }
 overwrite		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); }
 no-overwrite		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
+percore			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PERCORE); }
 ,			{ return ','; }
 "/"			{ BEGIN(INITIAL); return '/'; }
 {name_minus}		{ return str(yyscanner, PE_NAME); }
diff --git a/tools/perf/util/parse-regs-options.c b/tools/perf/util/parse-regs-options.c
index e6599e2..08581e2 100644
--- a/tools/perf/util/parse-regs-options.c
+++ b/tools/perf/util/parse-regs-options.c
@@ -5,13 +5,14 @@
 #include <subcmd/parse-options.h>
 #include "util/parse-regs-options.h"
 
-int
-parse_regs(const struct option *opt, const char *str, int unset)
+static int
+__parse_regs(const struct option *opt, const char *str, int unset, bool intr)
 {
 	uint64_t *mode = (uint64_t *)opt->value;
 	const struct sample_reg *r;
 	char *s, *os = NULL, *p;
 	int ret = -1;
+	uint64_t mask;
 
 	if (unset)
 		return 0;
@@ -22,6 +23,11 @@
 	if (*mode)
 		return -1;
 
+	if (intr)
+		mask = arch__intr_reg_mask();
+	else
+		mask = arch__user_reg_mask();
+
 	/* str may be NULL in case no arg is passed to -I */
 	if (str) {
 		/* because str is read-only */
@@ -37,19 +43,20 @@
 			if (!strcmp(s, "?")) {
 				fprintf(stderr, "available registers: ");
 				for (r = sample_reg_masks; r->name; r++) {
-					fprintf(stderr, "%s ", r->name);
+					if (r->mask & mask)
+						fprintf(stderr, "%s ", r->name);
 				}
 				fputc('\n', stderr);
 				/* just printing available regs */
 				return -1;
 			}
 			for (r = sample_reg_masks; r->name; r++) {
-				if (!strcasecmp(s, r->name))
+				if ((r->mask & mask) && !strcasecmp(s, r->name))
 					break;
 			}
 			if (!r->name) {
-				ui__warning("unknown register %s,"
-					    " check man page\n", s);
+				ui__warning("Unknown register \"%s\", check man page or run \"perf record %s?\"\n",
+					    s, intr ? "-I" : "--user-regs=");
 				goto error;
 			}
 
@@ -65,8 +72,20 @@
 
 	/* default to all possible regs */
 	if (*mode == 0)
-		*mode = PERF_REGS_MASK;
+		*mode = mask;
 error:
 	free(os);
 	return ret;
 }
+
+int
+parse_user_regs(const struct option *opt, const char *str, int unset)
+{
+	return __parse_regs(opt, str, unset, false);
+}
+
+int
+parse_intr_regs(const struct option *opt, const char *str, int unset)
+{
+	return __parse_regs(opt, str, unset, true);
+}
diff --git a/tools/perf/util/parse-regs-options.h b/tools/perf/util/parse-regs-options.h
index cdefb1a..2b23d25 100644
--- a/tools/perf/util/parse-regs-options.h
+++ b/tools/perf/util/parse-regs-options.h
@@ -2,5 +2,6 @@
 #ifndef _PERF_PARSE_REGS_OPTIONS_H
 #define _PERF_PARSE_REGS_OPTIONS_H 1
 struct option;
-int parse_regs(const struct option *opt, const char *str, int unset);
+int parse_user_regs(const struct option *opt, const char *str, int unset);
+int parse_intr_regs(const struct option *opt, const char *str, int unset);
 #endif /* _PERF_PARSE_REGS_OPTIONS_H */
diff --git a/tools/perf/util/perf_regs.c b/tools/perf/util/perf_regs.c
index 2acfcc5..2774cec 100644
--- a/tools/perf/util/perf_regs.c
+++ b/tools/perf/util/perf_regs.c
@@ -13,6 +13,16 @@
 	return SDT_ARG_SKIP;
 }
 
+uint64_t __weak arch__intr_reg_mask(void)
+{
+	return PERF_REGS_MASK;
+}
+
+uint64_t __weak arch__user_reg_mask(void)
+{
+	return PERF_REGS_MASK;
+}
+
 #ifdef HAVE_PERF_REGS_SUPPORT
 int perf_reg_value(u64 *valp, struct regs_dump *regs, int id)
 {
diff --git a/tools/perf/util/perf_regs.h b/tools/perf/util/perf_regs.h
index c9319f8..cb9c246 100644
--- a/tools/perf/util/perf_regs.h
+++ b/tools/perf/util/perf_regs.h
@@ -12,6 +12,7 @@
 	uint64_t mask;
 };
 #define SMPL_REG(n, b) { .name = #n, .mask = 1ULL << (b) }
+#define SMPL_REG2(n, b) { .name = #n, .mask = 3ULL << (b) }
 #define SMPL_REG_END { .name = NULL }
 
 extern const struct sample_reg sample_reg_masks[];
@@ -22,6 +23,8 @@
 };
 
 int arch_sdt_arg_parse_op(char *old_op, char **new_op);
+uint64_t arch__intr_reg_mask(void);
+uint64_t arch__user_reg_mask(void);
 
 #ifdef HAVE_PERF_REGS_SUPPORT
 #include <perf_regs.h>
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index bad5f87a..2310a17 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -29,6 +29,61 @@
 #include "stat.h"
 #include "arch/common.h"
 
+#ifdef HAVE_ZSTD_SUPPORT
+static int perf_session__process_compressed_event(struct perf_session *session,
+						  union perf_event *event, u64 file_offset)
+{
+	void *src;
+	size_t decomp_size, src_size;
+	u64 decomp_last_rem = 0;
+	size_t decomp_len = session->header.env.comp_mmap_len;
+	struct decomp *decomp, *decomp_last = session->decomp_last;
+
+	decomp = mmap(NULL, sizeof(struct decomp) + decomp_len, PROT_READ|PROT_WRITE,
+		      MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+	if (decomp == MAP_FAILED) {
+		pr_err("Couldn't allocate memory for decompression\n");
+		return -1;
+	}
+
+	decomp->file_pos = file_offset;
+	decomp->head = 0;
+
+	if (decomp_last) {
+		decomp_last_rem = decomp_last->size - decomp_last->head;
+		memcpy(decomp->data, &(decomp_last->data[decomp_last->head]), decomp_last_rem);
+		decomp->size = decomp_last_rem;
+	}
+
+	src = (void *)event + sizeof(struct compressed_event);
+	src_size = event->pack.header.size - sizeof(struct compressed_event);
+
+	decomp_size = zstd_decompress_stream(&(session->zstd_data), src, src_size,
+				&(decomp->data[decomp_last_rem]), decomp_len - decomp_last_rem);
+	if (!decomp_size) {
+		munmap(decomp, sizeof(struct decomp) + decomp_len);
+		pr_err("Couldn't decompress data\n");
+		return -1;
+	}
+
+	decomp->size += decomp_size;
+
+	if (session->decomp == NULL) {
+		session->decomp = decomp;
+		session->decomp_last = decomp;
+	} else {
+		session->decomp_last->next = decomp;
+		session->decomp_last = decomp;
+	}
+
+	pr_debug("decomp (B): %ld to %ld\n", src_size, decomp_size);
+
+	return 0;
+}
+#else /* !HAVE_ZSTD_SUPPORT */
+#define perf_session__process_compressed_event perf_session__process_compressed_event_stub
+#endif
+
 static int perf_session__deliver_event(struct perf_session *session,
 				       union perf_event *event,
 				       struct perf_tool *tool,
@@ -197,6 +252,21 @@
 	machine__delete_threads(&session->machines.host);
 }
 
+static void perf_session__release_decomp_events(struct perf_session *session)
+{
+	struct decomp *next, *decomp;
+	size_t decomp_len;
+	next = session->decomp;
+	decomp_len = session->header.env.comp_mmap_len;
+	do {
+		decomp = next;
+		if (decomp == NULL)
+			break;
+		next = decomp->next;
+		munmap(decomp, decomp_len + sizeof(struct decomp));
+	} while (1);
+}
+
 void perf_session__delete(struct perf_session *session)
 {
 	if (session == NULL)
@@ -205,6 +275,7 @@
 	auxtrace_index__free(&session->auxtrace_index);
 	perf_session__destroy_kernel_maps(session);
 	perf_session__delete_threads(session);
+	perf_session__release_decomp_events(session);
 	perf_env__exit(&session->header.env);
 	machines__exit(&session->machines);
 	if (session->data)
@@ -358,6 +429,14 @@
 	return 0;
 }
 
+static int perf_session__process_compressed_event_stub(struct perf_session *session __maybe_unused,
+						       union perf_event *event __maybe_unused,
+						       u64 file_offset __maybe_unused)
+{
+       dump_printf(": unhandled!\n");
+       return 0;
+}
+
 void perf_tool__fill_defaults(struct perf_tool *tool)
 {
 	if (tool->sample == NULL)
@@ -430,6 +509,8 @@
 		tool->time_conv = process_event_op2_stub;
 	if (tool->feature == NULL)
 		tool->feature = process_event_op2_stub;
+	if (tool->compressed == NULL)
+		tool->compressed = perf_session__process_compressed_event;
 }
 
 static void swap_sample_id_all(union perf_event *event, void *data)
@@ -1373,7 +1454,9 @@
 	int fd = perf_data__fd(session->data);
 	int err;
 
-	dump_event(session->evlist, event, file_offset, &sample);
+	if (event->header.type != PERF_RECORD_COMPRESSED ||
+	    tool->compressed == perf_session__process_compressed_event_stub)
+		dump_event(session->evlist, event, file_offset, &sample);
 
 	/* These events are processed right away */
 	switch (event->header.type) {
@@ -1426,6 +1509,11 @@
 		return tool->time_conv(session, event);
 	case PERF_RECORD_HEADER_FEATURE:
 		return tool->feature(session, event);
+	case PERF_RECORD_COMPRESSED:
+		err = tool->compressed(session, event, file_offset);
+		if (err)
+			dump_event(session->evlist, event, file_offset, &sample);
+		return err;
 	default:
 		return -EINVAL;
 	}
@@ -1708,6 +1796,8 @@
 
 volatile int session_done;
 
+static int __perf_session__process_decomp_events(struct perf_session *session);
+
 static int __perf_session__process_pipe_events(struct perf_session *session)
 {
 	struct ordered_events *oe = &session->ordered_events;
@@ -1788,6 +1878,10 @@
 	if (skip > 0)
 		head += skip;
 
+	err = __perf_session__process_decomp_events(session);
+	if (err)
+		goto out_err;
+
 	if (!session_done())
 		goto more;
 done:
@@ -1836,6 +1930,39 @@
 	return event;
 }
 
+static int __perf_session__process_decomp_events(struct perf_session *session)
+{
+	s64 skip;
+	u64 size, file_pos = 0;
+	struct decomp *decomp = session->decomp_last;
+
+	if (!decomp)
+		return 0;
+
+	while (decomp->head < decomp->size && !session_done()) {
+		union perf_event *event = fetch_mmaped_event(session, decomp->head, decomp->size, decomp->data);
+
+		if (!event)
+			break;
+
+		size = event->header.size;
+
+		if (size < sizeof(struct perf_event_header) ||
+		    (skip = perf_session__process_event(session, event, file_pos)) < 0) {
+			pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
+				decomp->file_pos + decomp->head, event->header.size, event->header.type);
+			return -EINVAL;
+		}
+
+		if (skip)
+			size += skip;
+
+		decomp->head += size;
+	}
+
+	return 0;
+}
+
 /*
  * On 64bit we can mmap the data file in one go. No need for tiny mmap
  * slices. On 32bit we use 32MB.
@@ -1945,6 +2072,10 @@
 	head += size;
 	file_pos += size;
 
+	err = __perf_session__process_decomp_events(session);
+	if (err)
+		goto out;
+
 	ui_progress__update(prog, size);
 
 	if (session_done())
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index d96eccd..dd8920b 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -8,6 +8,7 @@
 #include "machine.h"
 #include "data.h"
 #include "ordered-events.h"
+#include "util/compress.h"
 #include <linux/kernel.h>
 #include <linux/rbtree.h>
 #include <linux/perf_event.h>
@@ -35,6 +36,19 @@
 	struct ordered_events	ordered_events;
 	struct perf_data	*data;
 	struct perf_tool	*tool;
+	u64			bytes_transferred;
+	u64			bytes_compressed;
+	struct zstd_data	zstd_data;
+	struct decomp		*decomp;
+	struct decomp		*decomp_last;
+};
+
+struct decomp {
+	struct decomp *next;
+	u64 file_pos;
+	u64 head;
+	size_t size;
+	char data[];
 };
 
 struct perf_tool;
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 3324f23..4c53bae 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -88,9 +88,17 @@
 			config->csv_sep);
 			break;
 	case AGGR_NONE:
-		fprintf(config->output, "CPU%*d%s",
-			config->csv_output ? 0 : -4,
-			perf_evsel__cpus(evsel)->map[id], config->csv_sep);
+		if (evsel->percore) {
+			fprintf(config->output, "S%d-C%*d%s",
+				cpu_map__id_to_socket(id),
+				config->csv_output ? 0 : -5,
+				cpu_map__id_to_cpu(id), config->csv_sep);
+		} else {
+			fprintf(config->output, "CPU%*d%s ",
+				config->csv_output ? 0 : -5,
+				perf_evsel__cpus(evsel)->map[id],
+				config->csv_sep);
+		}
 		break;
 	case AGGR_THREAD:
 		fprintf(config->output, "%*s-%*d%s",
@@ -594,6 +602,41 @@
 	}
 }
 
+static void print_counter_aggrdata(struct perf_stat_config *config,
+				   struct perf_evsel *counter, int s,
+				   char *prefix, bool metric_only,
+				   bool *first)
+{
+	struct aggr_data ad;
+	FILE *output = config->output;
+	u64 ena, run, val;
+	int id, nr;
+	double uval;
+
+	ad.id = id = config->aggr_map->map[s];
+	ad.val = ad.ena = ad.run = 0;
+	ad.nr = 0;
+	if (!collect_data(config, counter, aggr_cb, &ad))
+		return;
+
+	nr = ad.nr;
+	ena = ad.ena;
+	run = ad.run;
+	val = ad.val;
+	if (*first && metric_only) {
+		*first = false;
+		aggr_printout(config, counter, id, nr);
+	}
+	if (prefix && !metric_only)
+		fprintf(output, "%s", prefix);
+
+	uval = val * counter->scale;
+	printout(config, id, nr, counter, uval, prefix,
+		 run, ena, 1.0, &rt_stat);
+	if (!metric_only)
+		fputc('\n', output);
+}
+
 static void print_aggr(struct perf_stat_config *config,
 		       struct perf_evlist *evlist,
 		       char *prefix)
@@ -601,9 +644,7 @@
 	bool metric_only = config->metric_only;
 	FILE *output = config->output;
 	struct perf_evsel *counter;
-	int s, id, nr;
-	double uval;
-	u64 ena, run, val;
+	int s;
 	bool first;
 
 	if (!(config->aggr_map || config->aggr_get_id))
@@ -616,33 +657,14 @@
 	 * Without each counter has its own line.
 	 */
 	for (s = 0; s < config->aggr_map->nr; s++) {
-		struct aggr_data ad;
 		if (prefix && metric_only)
 			fprintf(output, "%s", prefix);
 
-		ad.id = id = config->aggr_map->map[s];
 		first = true;
 		evlist__for_each_entry(evlist, counter) {
-			ad.val = ad.ena = ad.run = 0;
-			ad.nr = 0;
-			if (!collect_data(config, counter, aggr_cb, &ad))
-				continue;
-			nr = ad.nr;
-			ena = ad.ena;
-			run = ad.run;
-			val = ad.val;
-			if (first && metric_only) {
-				first = false;
-				aggr_printout(config, counter, id, nr);
-			}
-			if (prefix && !metric_only)
-				fprintf(output, "%s", prefix);
-
-			uval = val * counter->scale;
-			printout(config, id, nr, counter, uval, prefix,
-				 run, ena, 1.0, &rt_stat);
-			if (!metric_only)
-				fputc('\n', output);
+			print_counter_aggrdata(config, counter, s,
+					       prefix, metric_only,
+					       &first);
 		}
 		if (metric_only)
 			fputc('\n', output);
@@ -1089,6 +1111,30 @@
 			"the same PMU. Try reorganizing the group.\n");
 }
 
+static void print_percore(struct perf_stat_config *config,
+			  struct perf_evsel *counter, char *prefix)
+{
+	bool metric_only = config->metric_only;
+	FILE *output = config->output;
+	int s;
+	bool first = true;
+
+	if (!(config->aggr_map || config->aggr_get_id))
+		return;
+
+	for (s = 0; s < config->aggr_map->nr; s++) {
+		if (prefix && metric_only)
+			fprintf(output, "%s", prefix);
+
+		print_counter_aggrdata(config, counter, s,
+				       prefix, metric_only,
+				       &first);
+	}
+
+	if (metric_only)
+		fputc('\n', output);
+}
+
 void
 perf_evlist__print_counters(struct perf_evlist *evlist,
 			    struct perf_stat_config *config,
@@ -1139,7 +1185,10 @@
 			print_no_aggr_metric(config, evlist, prefix);
 		else {
 			evlist__for_each_entry(evlist, counter) {
-				print_counter(config, counter, prefix);
+				if (counter->percore)
+					print_percore(config, counter, prefix);
+				else
+					print_counter(config, counter, prefix);
 			}
 		}
 		break;
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 2856cc9..c3115d9 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -277,9 +277,11 @@
 		if (!evsel->snapshot)
 			perf_evsel__compute_deltas(evsel, cpu, thread, count);
 		perf_counts_values__scale(count, config->scale, NULL);
-		if (config->aggr_mode == AGGR_NONE)
-			perf_stat__update_shadow_stats(evsel, count->val, cpu,
-						       &rt_stat);
+		if ((config->aggr_mode == AGGR_NONE) && (!evsel->percore)) {
+			perf_stat__update_shadow_stats(evsel, count->val,
+						       cpu, &rt_stat);
+		}
+
 		if (config->aggr_mode == AGGR_THREAD) {
 			if (config->stats)
 				perf_stat__update_shadow_stats(evsel,
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 50678d3..403045a 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -15,6 +15,7 @@
 #include "map.h"
 #include "symbol.h"
 #include "unwind.h"
+#include "callchain.h"
 
 #include <api/fs/fs.h>
 
@@ -327,7 +328,7 @@
 {
 	int err = 0;
 
-	if (symbol_conf.use_callchain)
+	if (dwarf_callchain_users)
 		err = __thread__prepare_access(thread);
 
 	return err;
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index 2503916..9096a6e 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -28,6 +28,7 @@
 
 typedef int (*event_op2)(struct perf_session *session, union perf_event *event);
 typedef s64 (*event_op3)(struct perf_session *session, union perf_event *event);
+typedef int (*event_op4)(struct perf_session *session, union perf_event *event, u64 data);
 
 typedef int (*event_oe)(struct perf_tool *tool, union perf_event *event,
 			struct ordered_events *oe);
@@ -72,6 +73,7 @@
 			stat,
 			stat_round,
 			feature;
+	event_op4	compressed;
 	event_op3	auxtrace;
 	bool		ordered_events;
 	bool		ordering_requires_timestamps;
diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c
index f3c666a..25e1406 100644
--- a/tools/perf/util/unwind-libunwind-local.c
+++ b/tools/perf/util/unwind-libunwind-local.c
@@ -617,8 +617,6 @@
 
 static int _unwind__prepare_access(struct thread *thread)
 {
-	if (!dwarf_callchain_users)
-		return 0;
 	thread->addr_space = unw_create_addr_space(&accessors, 0);
 	if (!thread->addr_space) {
 		pr_err("unwind: Can't create unwind address space.\n");
@@ -631,15 +629,11 @@
 
 static void _unwind__flush_access(struct thread *thread)
 {
-	if (!dwarf_callchain_users)
-		return;
 	unw_flush_cache(thread->addr_space, 0, 0);
 }
 
 static void _unwind__finish_access(struct thread *thread)
 {
-	if (!dwarf_callchain_users)
-		return;
 	unw_destroy_addr_space(thread->addr_space);
 }
 
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index 9778b31..c0811977 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -5,6 +5,7 @@
 #include "session.h"
 #include "debug.h"
 #include "env.h"
+#include "callchain.h"
 
 struct unwind_libunwind_ops __weak *local_unwind_libunwind_ops;
 struct unwind_libunwind_ops __weak *x86_32_unwind_libunwind_ops;
@@ -24,6 +25,9 @@
 	struct unwind_libunwind_ops *ops = local_unwind_libunwind_ops;
 	int err;
 
+	if (!dwarf_callchain_users)
+		return 0;
+
 	if (thread->addr_space) {
 		pr_debug("unwind: thread map already set, dso=%s\n",
 			 map->dso->name);
@@ -65,12 +69,18 @@
 
 void unwind__flush_access(struct thread *thread)
 {
+	if (!dwarf_callchain_users)
+		return;
+
 	if (thread->unwind_libunwind_ops)
 		thread->unwind_libunwind_ops->flush_access(thread);
 }
 
 void unwind__finish_access(struct thread *thread)
 {
+	if (!dwarf_callchain_users)
+		return;
+
 	if (thread->unwind_libunwind_ops)
 		thread->unwind_libunwind_ops->finish_access(thread);
 }
diff --git a/tools/perf/util/zstd.c b/tools/perf/util/zstd.c
new file mode 100644
index 0000000..23bdb98
--- /dev/null
+++ b/tools/perf/util/zstd.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <string.h>
+
+#include "util/compress.h"
+#include "util/debug.h"
+
+int zstd_init(struct zstd_data *data, int level)
+{
+	size_t ret;
+
+	data->dstream = ZSTD_createDStream();
+	if (data->dstream == NULL) {
+		pr_err("Couldn't create decompression stream.\n");
+		return -1;
+	}
+
+	ret = ZSTD_initDStream(data->dstream);
+	if (ZSTD_isError(ret)) {
+		pr_err("Failed to initialize decompression stream: %s\n", ZSTD_getErrorName(ret));
+		return -1;
+	}
+
+	if (!level)
+		return 0;
+
+	data->cstream = ZSTD_createCStream();
+	if (data->cstream == NULL) {
+		pr_err("Couldn't create compression stream.\n");
+		return -1;
+	}
+
+	ret = ZSTD_initCStream(data->cstream, level);
+	if (ZSTD_isError(ret)) {
+		pr_err("Failed to initialize compression stream: %s\n", ZSTD_getErrorName(ret));
+		return -1;
+	}
+
+	return 0;
+}
+
+int zstd_fini(struct zstd_data *data)
+{
+	if (data->dstream) {
+		ZSTD_freeDStream(data->dstream);
+		data->dstream = NULL;
+	}
+
+	if (data->cstream) {
+		ZSTD_freeCStream(data->cstream);
+		data->cstream = NULL;
+	}
+
+	return 0;
+}
+
+size_t zstd_compress_stream_to_records(struct zstd_data *data, void *dst, size_t dst_size,
+				       void *src, size_t src_size, size_t max_record_size,
+				       size_t process_header(void *record, size_t increment))
+{
+	size_t ret, size, compressed = 0;
+	ZSTD_inBuffer input = { src, src_size, 0 };
+	ZSTD_outBuffer output;
+	void *record;
+
+	while (input.pos < input.size) {
+		record = dst;
+		size = process_header(record, 0);
+		compressed += size;
+		dst += size;
+		dst_size -= size;
+		output = (ZSTD_outBuffer){ dst, (dst_size > max_record_size) ?
+						max_record_size : dst_size, 0 };
+		ret = ZSTD_compressStream(data->cstream, &output, &input);
+		ZSTD_flushStream(data->cstream, &output);
+		if (ZSTD_isError(ret)) {
+			pr_err("failed to compress %ld bytes: %s\n",
+				(long)src_size, ZSTD_getErrorName(ret));
+			memcpy(dst, src, src_size);
+			return src_size;
+		}
+		size = output.pos;
+		size = process_header(record, size);
+		compressed += size;
+		dst += size;
+		dst_size -= size;
+	}
+
+	return compressed;
+}
+
+size_t zstd_decompress_stream(struct zstd_data *data, void *src, size_t src_size,
+			      void *dst, size_t dst_size)
+{
+	size_t ret;
+	ZSTD_inBuffer input = { src, src_size, 0 };
+	ZSTD_outBuffer output = { dst, dst_size, 0 };
+
+	while (input.pos < input.size) {
+		ret = ZSTD_decompressStream(data->dstream, &output, &input);
+		if (ZSTD_isError(ret)) {
+			pr_err("failed to decompress (B): %ld -> %ld : %s\n",
+			       src_size, output.size, ZSTD_getErrorName(ret));
+			break;
+		}
+		output.dst  = dst + output.pos;
+		output.size = dst_size - output.pos;
+	}
+
+	return output.pos;
+}