Merge tag 'pinctrl-v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
"Two smaller pin control fixes for the v4.11 series:
- Add a get_direction() function to the qcom driver
- Fix two pin names in the uniphier driver"
* tag 'pinctrl-v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: uniphier: change pin names of aio/xirq for LD11
pinctrl: qcom: add get_direction function
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 986e443..2ba45ca 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -653,6 +653,9 @@
cpuidle.off=1 [CPU_IDLE]
disable the cpuidle sub-system
+ cpufreq.off=1 [CPU_FREQ]
+ disable the cpufreq sub-system
+
cpu_init_udelay=N
[X86] Delay for N microsec between assert and de-assert
of APIC INIT to start processors. This delay occurs
@@ -1183,6 +1186,12 @@
functions that can be changed at run time by the
set_graph_notrace file in the debugfs tracing directory.
+ ftrace_graph_max_depth=<uint>
+ [FTRACE] Used with the function graph tracer. This is
+ the max depth it will trace into a function. This value
+ can be changed at run time by the max_graph_depth file
+ in the tracefs tracing directory. default: 0 (no limit)
+
gamecon.map[2|3]=
[HW,JOY] Multisystem joystick and NES/SNES/PSX pad
support via parallel port (up to 5 devices per port)
diff --git a/Documentation/dev-tools/kcov.rst b/Documentation/dev-tools/kcov.rst
index 2c41b71..44886c9 100644
--- a/Documentation/dev-tools/kcov.rst
+++ b/Documentation/dev-tools/kcov.rst
@@ -10,7 +10,7 @@
to collect more or less stable coverage that is function of syscall inputs.
To achieve this goal it does not collect coverage in soft/hard interrupts
and instrumentation of some inherently non-deterministic parts of kernel is
-disbled (e.g. scheduler, locking).
+disabled (e.g. scheduler, locking).
Usage
-----
diff --git a/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt b/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt
index c3f6546..6a23ad9 100644
--- a/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt
@@ -45,7 +45,7 @@
Optional Properties:
- reg-names: In addition to the required properties, the following are optional
- "efuse-address" - Contains efuse base address used to pick up ABB info.
- - "ldo-address" - Contains address of ABB LDO overide register address.
+ - "ldo-address" - Contains address of ABB LDO override register.
"efuse-address" is required for this.
- ti,ldovbb-vset-mask - Required if ldo-address is set, mask for LDO override
register to provide override vset value.
diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt
index e4991fb..41ef9d8 100644
--- a/Documentation/trace/kprobetrace.txt
+++ b/Documentation/trace/kprobetrace.txt
@@ -12,7 +12,7 @@
functions). Unlike the Tracepoint based event, this can be added and removed
dynamically, on the fly.
-To enable this feature, build your kernel with CONFIG_KPROBE_EVENT=y.
+To enable this feature, build your kernel with CONFIG_KPROBE_EVENTS=y.
Similar to the events tracer, this doesn't need to be activated via
current_tracer. Instead of that, add probe points via
diff --git a/Documentation/trace/uprobetracer.txt b/Documentation/trace/uprobetracer.txt
index fa7b680..bf526a7c 100644
--- a/Documentation/trace/uprobetracer.txt
+++ b/Documentation/trace/uprobetracer.txt
@@ -7,7 +7,7 @@
Overview
--------
Uprobe based trace events are similar to kprobe based trace events.
-To enable this feature, build your kernel with CONFIG_UPROBE_EVENT=y.
+To enable this feature, build your kernel with CONFIG_UPROBE_EVENTS=y.
Similar to the kprobe-event tracer, this doesn't need to be activated via
current_tracer. Instead of that, add probe points via
diff --git a/Documentation/vm/userfaultfd.txt b/Documentation/vm/userfaultfd.txt
index 0e5543a..bb2f945 100644
--- a/Documentation/vm/userfaultfd.txt
+++ b/Documentation/vm/userfaultfd.txt
@@ -172,10 +172,6 @@
manager has to explicitly enable these events by setting appropriate
bits in uffdio_api.features passed to UFFDIO_API ioctl:
-UFFD_FEATURE_EVENT_EXIT - enable notification about exit() of the
-non-cooperative process. When the monitored process exits, the uffd
-manager will get UFFD_EVENT_EXIT.
-
UFFD_FEATURE_EVENT_FORK - enable userfaultfd hooks for fork(). When
this feature is enabled, the userfaultfd context of the parent process
is duplicated into the newly created process. The manager receives
diff --git a/arch/arc/include/asm/hugepage.h b/arch/arc/include/asm/hugepage.h
index 317ff77..b18fcb6 100644
--- a/arch/arc/include/asm/hugepage.h
+++ b/arch/arc/include/asm/hugepage.h
@@ -11,6 +11,7 @@
#define _ASM_ARC_HUGEPAGE_H
#include <linux/types.h>
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
static inline pte_t pmd_pte(pmd_t pmd)
diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h
index e94ca72..ee22d40 100644
--- a/arch/arc/include/asm/pgtable.h
+++ b/arch/arc/include/asm/pgtable.h
@@ -37,6 +37,7 @@
#include <asm/page.h>
#include <asm/mmu.h>
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#include <linux/const.h>
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index a8d656d..1c46238 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -20,6 +20,7 @@
#else
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
#include <asm/memory.h>
#include <asm/pgtable-hwdef.h>
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index ce18c91..f0325d9 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -198,6 +198,8 @@
.unmap_page = xen_swiotlb_unmap_page,
.dma_supported = xen_swiotlb_dma_supported,
.set_dma_mask = xen_swiotlb_set_dma_mask,
+ .mmap = xen_swiotlb_dma_mmap,
+ .get_sgtable = xen_swiotlb_get_sgtable,
};
int __init xen_mm_init(void)
diff --git a/arch/arm64/include/asm/pgtable-types.h b/arch/arm64/include/asm/pgtable-types.h
index 69b2fd4..345a072b 100644
--- a/arch/arm64/include/asm/pgtable-types.h
+++ b/arch/arm64/include/asm/pgtable-types.h
@@ -55,9 +55,13 @@
#define __pgprot(x) ((pgprot_t) { (x) } )
#if CONFIG_PGTABLE_LEVELS == 2
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#elif CONFIG_PGTABLE_LEVELS == 3
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
+#elif CONFIG_PGTABLE_LEVELS == 4
+#include <asm-generic/5level-fixup.h>
#endif
#endif /* __ASM_PGTABLE_TYPES_H */
diff --git a/arch/avr32/include/asm/pgtable-2level.h b/arch/avr32/include/asm/pgtable-2level.h
index 425dd56..d5b1c63 100644
--- a/arch/avr32/include/asm/pgtable-2level.h
+++ b/arch/avr32/include/asm/pgtable-2level.h
@@ -8,6 +8,7 @@
#ifndef __ASM_AVR32_PGTABLE_2LEVEL_H
#define __ASM_AVR32_PGTABLE_2LEVEL_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
/*
diff --git a/arch/avr32/oprofile/backtrace.c b/arch/avr32/oprofile/backtrace.c
index 75d9ad6..29cf2f1 100644
--- a/arch/avr32/oprofile/backtrace.c
+++ b/arch/avr32/oprofile/backtrace.c
@@ -14,7 +14,7 @@
*/
#include <linux/oprofile.h>
-#include <linux/sched.h>
+#include <linux/ptrace.h>
#include <linux/uaccess.h>
/* The first two words of each frame on the stack look like this if we have
diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c
index ae6903d..14970f1 100644
--- a/arch/cris/arch-v32/drivers/cryptocop.c
+++ b/arch/cris/arch-v32/drivers/cryptocop.c
@@ -2086,7 +2086,7 @@
dma_in_cfg.en = regk_dma_no;
REG_WR(dma, IN_DMA_INST, rw_cfg, dma_in_cfg);
- /* Disble the cryptocop. */
+ /* Disable the cryptocop. */
rw_cfg = REG_RD(strcop, regi_strcop, rw_cfg);
rw_cfg.en = 0;
REG_WR(strcop, regi_strcop, rw_cfg, rw_cfg);
diff --git a/arch/cris/include/asm/pgtable.h b/arch/cris/include/asm/pgtable.h
index 2a3210b..fa3a730 100644
--- a/arch/cris/include/asm/pgtable.h
+++ b/arch/cris/include/asm/pgtable.h
@@ -6,6 +6,7 @@
#define _CRIS_PGTABLE_H
#include <asm/page.h>
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#ifndef __ASSEMBLY__
diff --git a/arch/frv/include/asm/pgtable.h b/arch/frv/include/asm/pgtable.h
index a0513d4..ab6e7e9 100644
--- a/arch/frv/include/asm/pgtable.h
+++ b/arch/frv/include/asm/pgtable.h
@@ -16,6 +16,7 @@
#ifndef _ASM_PGTABLE_H
#define _ASM_PGTABLE_H
+#include <asm-generic/5level-fixup.h>
#include <asm/mem-layout.h>
#include <asm/setup.h>
#include <asm/processor.h>
diff --git a/arch/h8300/include/asm/pgtable.h b/arch/h8300/include/asm/pgtable.h
index 8341db6..7d265d2 100644
--- a/arch/h8300/include/asm/pgtable.h
+++ b/arch/h8300/include/asm/pgtable.h
@@ -1,5 +1,6 @@
#ifndef _H8300_PGTABLE_H
#define _H8300_PGTABLE_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
#include <asm-generic/pgtable.h>
#define pgtable_cache_init() do { } while (0)
diff --git a/arch/h8300/kernel/ptrace_h.c b/arch/h8300/kernel/ptrace_h.c
index fe3b567..f5ff3b7 100644
--- a/arch/h8300/kernel/ptrace_h.c
+++ b/arch/h8300/kernel/ptrace_h.c
@@ -9,7 +9,7 @@
*/
#include <linux/linkage.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <asm/ptrace.h>
#define BREAKINST 0x5730 /* trapa #3 */
diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h
index 49eab813..24a9177 100644
--- a/arch/hexagon/include/asm/pgtable.h
+++ b/arch/hexagon/include/asm/pgtable.h
@@ -26,6 +26,7 @@
*/
#include <linux/swap.h>
#include <asm/page.h>
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
/* A handy thing to have if one has the RAM. Declared in head.S */
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index 384794e..6cc22c8d 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -587,8 +587,10 @@
#if CONFIG_PGTABLE_LEVELS == 3
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
#endif
+#include <asm-generic/5level-fixup.h>
#include <asm-generic/pgtable.h>
#endif /* _ASM_IA64_PGTABLE_H */
diff --git a/arch/metag/include/asm/pgtable.h b/arch/metag/include/asm/pgtable.h
index ffa3a3a..0c151e5 100644
--- a/arch/metag/include/asm/pgtable.h
+++ b/arch/metag/include/asm/pgtable.h
@@ -6,6 +6,7 @@
#define _METAG_PGTABLE_H
#include <asm/pgtable-bits.h>
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
/* Invalid regions on Meta: 0x00000000-0x001FFFFF and 0xFFFF0000-0xFFFFFFFF */
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
index fd85087..d506bb0 100644
--- a/arch/microblaze/include/asm/page.h
+++ b/arch/microblaze/include/asm/page.h
@@ -95,7 +95,8 @@
# else /* CONFIG_MMU */
typedef struct { unsigned long ste[64]; } pmd_t;
typedef struct { pmd_t pue[1]; } pud_t;
-typedef struct { pud_t pge[1]; } pgd_t;
+typedef struct { pud_t p4e[1]; } p4d_t;
+typedef struct { p4d_t pge[1]; } pgd_t;
# endif /* CONFIG_MMU */
# define pte_val(x) ((x).pte)
diff --git a/arch/mips/cavium-octeon/cpu.c b/arch/mips/cavium-octeon/cpu.c
index a5b4279..036d56c 100644
--- a/arch/mips/cavium-octeon/cpu.c
+++ b/arch/mips/cavium-octeon/cpu.c
@@ -10,7 +10,9 @@
#include <linux/irqflags.h>
#include <linux/notifier.h>
#include <linux/prefetch.h>
+#include <linux/ptrace.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <asm/cop2.h>
#include <asm/current.h>
diff --git a/arch/mips/cavium-octeon/crypto/octeon-crypto.c b/arch/mips/cavium-octeon/crypto/octeon-crypto.c
index 4d22365..cfb4a14 100644
--- a/arch/mips/cavium-octeon/crypto/octeon-crypto.c
+++ b/arch/mips/cavium-octeon/crypto/octeon-crypto.c
@@ -9,6 +9,7 @@
#include <asm/cop2.h>
#include <linux/export.h>
#include <linux/interrupt.h>
+#include <linux/sched/task_stack.h>
#include "octeon-crypto.h"
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index 4b94b7f..3de7865 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -12,6 +12,7 @@
#include <linux/kernel_stat.h>
#include <linux/sched.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
#include <linux/init.h>
#include <linux/export.h>
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index 321752b..f94455f 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -12,6 +12,7 @@
#include <linux/sched.h>
#include <linux/sched/task_stack.h>
+#include <linux/ptrace.h>
#include <linux/thread_info.h>
#include <linux/bitops.h>
diff --git a/arch/mips/include/asm/pgtable-32.h b/arch/mips/include/asm/pgtable-32.h
index d21f3da..6f94bed 100644
--- a/arch/mips/include/asm/pgtable-32.h
+++ b/arch/mips/include/asm/pgtable-32.h
@@ -16,6 +16,7 @@
#include <asm/cachectl.h>
#include <asm/fixmap.h>
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
extern int temp_tlb_entry;
diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index 514cbc0..130a2a6 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -17,6 +17,7 @@
#include <asm/cachectl.h>
#include <asm/fixmap.h>
+#define __ARCH_USE_5LEVEL_HACK
#if defined(CONFIG_PAGE_SIZE_64KB) && !defined(CONFIG_MIPS_VA_BITS_48)
#include <asm-generic/pgtable-nopmd.h>
#else
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 3daa2ca..1b070a7 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -11,6 +11,7 @@
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/smp.h>
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index e077ea3..e398cbc 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -23,6 +23,7 @@
#include <linux/interrupt.h>
#include <linux/irqchip/mips-gic.h>
#include <linux/compiler.h>
+#include <linux/sched/task_stack.h>
#include <linux/smp.h>
#include <linux/atomic.h>
diff --git a/arch/mips/loongson64/loongson-3/cop2-ex.c b/arch/mips/loongson64/loongson-3/cop2-ex.c
index ea13764..621d6af 100644
--- a/arch/mips/loongson64/loongson-3/cop2-ex.c
+++ b/arch/mips/loongson64/loongson-3/cop2-ex.c
@@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/notifier.h>
+#include <linux/ptrace.h>
#include <asm/fpu.h>
#include <asm/cop2.h>
diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c
index 10d86d5..bddf1ef 100644
--- a/arch/mips/netlogic/common/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -35,6 +35,7 @@
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/init.h>
+#include <linux/sched/task_stack.h>
#include <linux/smp.h>
#include <linux/irq.h>
diff --git a/arch/mips/netlogic/xlp/cop2-ex.c b/arch/mips/netlogic/xlp/cop2-ex.c
index 52bc5de..21e439b 100644
--- a/arch/mips/netlogic/xlp/cop2-ex.c
+++ b/arch/mips/netlogic/xlp/cop2-ex.c
@@ -9,11 +9,14 @@
* Copyright (C) 2009 Wind River Systems,
* written by Ralf Baechle <ralf@linux-mips.org>
*/
+#include <linux/capability.h>
#include <linux/init.h>
#include <linux/irqflags.h>
#include <linux/notifier.h>
#include <linux/prefetch.h>
+#include <linux/ptrace.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <asm/cop2.h>
#include <asm/current.h>
diff --git a/arch/mips/sgi-ip22/ip28-berr.c b/arch/mips/sgi-ip22/ip28-berr.c
index 1f2a5bc..75460e1 100644
--- a/arch/mips/sgi-ip22/ip28-berr.c
+++ b/arch/mips/sgi-ip22/ip28-berr.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/signal.h>
#include <linux/seq_file.h>
#include <asm/addrspace.h>
diff --git a/arch/mips/sgi-ip27/ip27-berr.c b/arch/mips/sgi-ip27/ip27-berr.c
index d12879e..83efe03 100644
--- a/arch/mips/sgi-ip27/ip27-berr.c
+++ b/arch/mips/sgi-ip27/ip27-berr.c
@@ -12,7 +12,9 @@
#include <linux/signal.h> /* for SIGBUS */
#include <linux/sched.h> /* schow_regs(), force_sig() */
#include <linux/sched/debug.h>
+#include <linux/sched/signal.h>
+#include <asm/ptrace.h>
#include <asm/sn/addrs.h>
#include <asm/sn/arch.h>
#include <asm/sn/sn0/hub.h>
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index f5ed45e..4cd47d2 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -8,10 +8,13 @@
*/
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/topology.h>
#include <linux/nodemask.h>
+
#include <asm/page.h>
#include <asm/processor.h>
+#include <asm/ptrace.h>
#include <asm/sn/arch.h>
#include <asm/sn/gda.h>
#include <asm/sn/intr.h>
diff --git a/arch/mips/sgi-ip32/ip32-berr.c b/arch/mips/sgi-ip32/ip32-berr.c
index 57d8c74..c1f12a9 100644
--- a/arch/mips/sgi-ip32/ip32-berr.c
+++ b/arch/mips/sgi-ip32/ip32-berr.c
@@ -11,6 +11,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/signal.h>
#include <asm/traps.h>
#include <linux/uaccess.h>
#include <asm/addrspace.h>
diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c
index 8bd415c..b3b442d 100644
--- a/arch/mips/sgi-ip32/ip32-reset.c
+++ b/arch/mips/sgi-ip32/ip32-reset.c
@@ -13,6 +13,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/notifier.h>
#include <linux/delay.h>
#include <linux/rtc/ds1685.h>
diff --git a/arch/mn10300/include/asm/page.h b/arch/mn10300/include/asm/page.h
index 3810a6f..dfe730a 100644
--- a/arch/mn10300/include/asm/page.h
+++ b/arch/mn10300/include/asm/page.h
@@ -57,6 +57,7 @@
#define __pgd(x) ((pgd_t) { (x) })
#define __pgprot(x) ((pgprot_t) { (x) })
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#endif /* !__ASSEMBLY__ */
diff --git a/arch/nios2/include/asm/pgtable.h b/arch/nios2/include/asm/pgtable.h
index 298393c..db4f7d1 100644
--- a/arch/nios2/include/asm/pgtable.h
+++ b/arch/nios2/include/asm/pgtable.h
@@ -22,6 +22,7 @@
#include <asm/tlbflush.h>
#include <asm/pgtable-bits.h>
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#define FIRST_USER_ADDRESS 0UL
diff --git a/arch/openrisc/include/asm/pgtable.h b/arch/openrisc/include/asm/pgtable.h
index 3567aa7..ff97374 100644
--- a/arch/openrisc/include/asm/pgtable.h
+++ b/arch/openrisc/include/asm/pgtable.h
@@ -25,6 +25,7 @@
#ifndef __ASM_OPENRISC_PGTABLE_H
#define __ASM_OPENRISC_PGTABLE_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#ifndef __ASSEMBLY__
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 4940917..97a8bc8 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -80,93 +80,99 @@
config PPC
bool
default y
- select BUILDTIME_EXTABLE_SORT
+ #
+ # Please keep this list sorted alphabetically.
+ #
+ select ARCH_HAS_DEVMEM_IS_ALLOWED
+ select ARCH_HAS_DMA_SET_COHERENT_MASK
+ select ARCH_HAS_ELF_RANDOMIZE
+ select ARCH_HAS_GCOV_PROFILE_ALL
+ select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE
+ select ARCH_HAS_SG_CHAIN
+ select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+ select ARCH_HAS_UBSAN_SANITIZE_ALL
+ select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
+ select ARCH_SUPPORTS_ATOMIC_RMW
+ select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
+ select ARCH_USE_BUILTIN_BSWAP
+ select ARCH_USE_CMPXCHG_LOCKREF if PPC64
+ select ARCH_WANT_IPC_PARSE_VERSION
select BINFMT_ELF
- select ARCH_HAS_ELF_RANDOMIZE
+ select BUILDTIME_EXTABLE_SORT
+ select CLONE_BACKWARDS
+ select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
+ select EDAC_ATOMIC_SCRUB
+ select EDAC_SUPPORT
+ select GENERIC_ATOMIC64 if PPC32
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_CLOCKEVENTS_BROADCAST if SMP
+ select GENERIC_CMOS_UPDATE
+ select GENERIC_CPU_AUTOPROBE
+ select GENERIC_IRQ_SHOW
+ select GENERIC_IRQ_SHOW_LEVEL
+ select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_STRNCPY_FROM_USER
+ select GENERIC_STRNLEN_USER
+ select GENERIC_TIME_VSYSCALL_OLD
+ select HAVE_ARCH_AUDITSYSCALL
+ select HAVE_ARCH_HARDENED_USERCOPY
+ select HAVE_ARCH_JUMP_LABEL
+ select HAVE_ARCH_KGDB
+ select HAVE_ARCH_SECCOMP_FILTER
+ select HAVE_ARCH_TRACEHOOK
+ select HAVE_CBPF_JIT if !PPC64
+ select HAVE_CONTEXT_TRACKING if PPC64
+ select HAVE_DEBUG_KMEMLEAK
+ select HAVE_DEBUG_STACKOVERFLOW
+ select HAVE_DMA_API_DEBUG
+ select HAVE_DYNAMIC_FTRACE
+ select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL
+ select HAVE_EBPF_JIT if PPC64
+ select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU)
+ select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_FUNCTION_GRAPH_TRACER
+ select HAVE_FUNCTION_TRACER
+ select HAVE_GCC_PLUGINS
+ select HAVE_GENERIC_RCU_GUP
+ select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx)
+ select HAVE_IDE
+ select HAVE_IOREMAP_PROT
+ select HAVE_IRQ_EXIT_ON_IRQ_STACK
+ select HAVE_KERNEL_GZIP
+ select HAVE_KPROBES
+ select HAVE_KRETPROBES
+ select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS
+ select HAVE_MEMBLOCK
+ select HAVE_MEMBLOCK_NODE_MAP
+ select HAVE_MOD_ARCH_SPECIFIC
+ select HAVE_NMI if PERF_EVENTS
+ select HAVE_OPROFILE
+ select HAVE_OPTPROBES if PPC64
+ select HAVE_PERF_EVENTS
+ select HAVE_PERF_EVENTS_NMI if PPC64
+ select HAVE_PERF_REGS
+ select HAVE_PERF_USER_STACK_DUMP
+ select HAVE_RCU_TABLE_FREE if SMP
+ select HAVE_REGS_AND_STACK_ACCESS_API
+ select HAVE_SYSCALL_TRACEPOINTS
+ select HAVE_VIRT_CPU_ACCOUNTING
+ select IRQ_DOMAIN
+ select IRQ_FORCED_THREADING
+ select MODULES_USE_ELF_RELA
+ select NO_BOOTMEM
select OF
select OF_EARLY_FLATTREE
select OF_RESERVED_MEM
- select HAVE_FTRACE_MCOUNT_RECORD
- select HAVE_DYNAMIC_FTRACE
- select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL
- select HAVE_FUNCTION_TRACER
- select HAVE_FUNCTION_GRAPH_TRACER
- select HAVE_GCC_PLUGINS
- select SYSCTL_EXCEPTION_TRACE
- select VIRT_TO_BUS if !PPC64
- select HAVE_IDE
- select HAVE_IOREMAP_PROT
- select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU)
- select HAVE_KPROBES
- select HAVE_OPTPROBES if PPC64
- select HAVE_ARCH_KGDB
- select HAVE_KRETPROBES
- select HAVE_ARCH_TRACEHOOK
- select HAVE_MEMBLOCK
- select HAVE_MEMBLOCK_NODE_MAP
- select HAVE_DMA_API_DEBUG
- select HAVE_OPROFILE
- select HAVE_DEBUG_KMEMLEAK
- select ARCH_HAS_SG_CHAIN
- select GENERIC_ATOMIC64 if PPC32
- select HAVE_PERF_EVENTS
- select HAVE_PERF_REGS
- select HAVE_PERF_USER_STACK_DUMP
- select HAVE_REGS_AND_STACK_ACCESS_API
- select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx)
- select ARCH_WANT_IPC_PARSE_VERSION
- select SPARSE_IRQ
- select IRQ_DOMAIN
- select GENERIC_IRQ_SHOW
- select GENERIC_IRQ_SHOW_LEVEL
- select IRQ_FORCED_THREADING
- select HAVE_RCU_TABLE_FREE if SMP
- select HAVE_SYSCALL_TRACEPOINTS
- select HAVE_CBPF_JIT if !PPC64
- select HAVE_EBPF_JIT if PPC64
- select HAVE_ARCH_JUMP_LABEL
- select ARCH_HAVE_NMI_SAFE_CMPXCHG
- select ARCH_HAS_GCOV_PROFILE_ALL
- select GENERIC_SMP_IDLE_THREAD
- select GENERIC_CMOS_UPDATE
- select GENERIC_TIME_VSYSCALL_OLD
- select GENERIC_CLOCKEVENTS
- select GENERIC_CLOCKEVENTS_BROADCAST if SMP
- select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
- select GENERIC_STRNCPY_FROM_USER
- select GENERIC_STRNLEN_USER
- select HAVE_MOD_ARCH_SPECIFIC
- select MODULES_USE_ELF_RELA
- select CLONE_BACKWARDS
- select ARCH_USE_BUILTIN_BSWAP
+ select OLD_SIGACTION if PPC32
select OLD_SIGSUSPEND
- select OLD_SIGACTION if PPC32
- select HAVE_DEBUG_STACKOVERFLOW
- select HAVE_IRQ_EXIT_ON_IRQ_STACK
- select ARCH_USE_CMPXCHG_LOCKREF if PPC64
- select HAVE_ARCH_AUDITSYSCALL
- select ARCH_SUPPORTS_ATOMIC_RMW
- select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
- select NO_BOOTMEM
- select HAVE_GENERIC_RCU_GUP
- select HAVE_PERF_EVENTS_NMI if PPC64
- select HAVE_NMI if PERF_EVENTS
- select EDAC_SUPPORT
- select EDAC_ATOMIC_SCRUB
- select ARCH_HAS_DMA_SET_COHERENT_MASK
- select ARCH_HAS_DEVMEM_IS_ALLOWED
- select HAVE_ARCH_SECCOMP_FILTER
- select ARCH_HAS_UBSAN_SANITIZE_ALL
- select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
- select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS
- select GENERIC_CPU_AUTOPROBE
- select HAVE_VIRT_CPU_ACCOUNTING
- select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE
- select HAVE_ARCH_HARDENED_USERCOPY
- select HAVE_KERNEL_GZIP
- select HAVE_CONTEXT_TRACKING if PPC64
+ select SPARSE_IRQ
+ select SYSCTL_EXCEPTION_TRACE
+ select VIRT_TO_BUS if !PPC64
+ #
+ # Please keep this list sorted alphabetically.
+ #
config GENERIC_CSUM
def_bool n
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 31286fa..19b0d1a 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -72,8 +72,15 @@
MULTIPLEWORD := -mmultiple
endif
-cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian)
+ifdef CONFIG_PPC64
+cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
+cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc)
+aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
+aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2
+endif
+
cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian
+cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian)
ifneq ($(cc-name),clang)
cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mno-strict-align
endif
@@ -113,7 +120,9 @@
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
else
+CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc)
+AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
endif
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 0122236..26ed228 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -1,6 +1,7 @@
#ifndef _ASM_POWERPC_BOOK3S_32_PGTABLE_H
#define _ASM_POWERPC_BOOK3S_32_PGTABLE_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#include <asm/book3s/32/hash.h>
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 1eeeb72..8f4d419 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -1,9 +1,12 @@
#ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_H_
#define _ASM_POWERPC_BOOK3S_64_PGTABLE_H_
+#include <asm-generic/5level-fixup.h>
+
#ifndef __ASSEMBLY__
#include <linux/mmdebug.h>
#endif
+
/*
* Common bits between hash and Radix page table
*/
@@ -347,23 +350,58 @@
__r; \
})
+static inline int __pte_write(pte_t pte)
+{
+ return !!(pte_raw(pte) & cpu_to_be64(_PAGE_WRITE));
+}
+
+#ifdef CONFIG_NUMA_BALANCING
+#define pte_savedwrite pte_savedwrite
+static inline bool pte_savedwrite(pte_t pte)
+{
+ /*
+ * Saved write ptes are prot none ptes that doesn't have
+ * privileged bit sit. We mark prot none as one which has
+ * present and pviliged bit set and RWX cleared. To mark
+ * protnone which used to have _PAGE_WRITE set we clear
+ * the privileged bit.
+ */
+ return !(pte_raw(pte) & cpu_to_be64(_PAGE_RWX | _PAGE_PRIVILEGED));
+}
+#else
+#define pte_savedwrite pte_savedwrite
+static inline bool pte_savedwrite(pte_t pte)
+{
+ return false;
+}
+#endif
+
+static inline int pte_write(pte_t pte)
+{
+ return __pte_write(pte) || pte_savedwrite(pte);
+}
+
#define __HAVE_ARCH_PTEP_SET_WRPROTECT
static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
- if ((pte_raw(*ptep) & cpu_to_be64(_PAGE_WRITE)) == 0)
- return;
-
- pte_update(mm, addr, ptep, _PAGE_WRITE, 0, 0);
+ if (__pte_write(*ptep))
+ pte_update(mm, addr, ptep, _PAGE_WRITE, 0, 0);
+ else if (unlikely(pte_savedwrite(*ptep)))
+ pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
}
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
- if ((pte_raw(*ptep) & cpu_to_be64(_PAGE_WRITE)) == 0)
- return;
-
- pte_update(mm, addr, ptep, _PAGE_WRITE, 0, 1);
+ /*
+ * We should not find protnone for hugetlb, but this complete the
+ * interface.
+ */
+ if (__pte_write(*ptep))
+ pte_update(mm, addr, ptep, _PAGE_WRITE, 0, 1);
+ else if (unlikely(pte_savedwrite(*ptep)))
+ pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 1);
}
#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
@@ -397,11 +435,6 @@
pte_update(mm, addr, ptep, ~0UL, 0, 0);
}
-static inline int pte_write(pte_t pte)
-{
- return !!(pte_raw(pte) & cpu_to_be64(_PAGE_WRITE));
-}
-
static inline int pte_dirty(pte_t pte)
{
return !!(pte_raw(pte) & cpu_to_be64(_PAGE_DIRTY));
@@ -465,19 +498,12 @@
VM_BUG_ON(!pte_protnone(pte));
return __pte(pte_val(pte) | _PAGE_PRIVILEGED);
}
-
-#define pte_savedwrite pte_savedwrite
-static inline bool pte_savedwrite(pte_t pte)
+#else
+#define pte_clear_savedwrite pte_clear_savedwrite
+static inline pte_t pte_clear_savedwrite(pte_t pte)
{
- /*
- * Saved write ptes are prot none ptes that doesn't have
- * privileged bit sit. We mark prot none as one which has
- * present and pviliged bit set and RWX cleared. To mark
- * protnone which used to have _PAGE_WRITE set we clear
- * the privileged bit.
- */
- VM_BUG_ON(!pte_protnone(pte));
- return !(pte_raw(pte) & cpu_to_be64(_PAGE_RWX | _PAGE_PRIVILEGED));
+ VM_WARN_ON(1);
+ return __pte(pte_val(pte) & ~_PAGE_WRITE);
}
#endif /* CONFIG_NUMA_BALANCING */
@@ -506,6 +532,8 @@
/* Generic modifiers for PTE bits */
static inline pte_t pte_wrprotect(pte_t pte)
{
+ if (unlikely(pte_savedwrite(pte)))
+ return pte_clear_savedwrite(pte);
return __pte(pte_val(pte) & ~_PAGE_WRITE);
}
@@ -926,6 +954,7 @@
#define __HAVE_ARCH_PMD_WRITE
#define pmd_write(pmd) pte_write(pmd_pte(pmd))
+#define __pmd_write(pmd) __pte_write(pmd_pte(pmd))
#define pmd_savedwrite(pmd) pte_savedwrite(pmd_pte(pmd))
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -982,11 +1011,10 @@
static inline void pmdp_set_wrprotect(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp)
{
-
- if ((pmd_raw(*pmdp) & cpu_to_be64(_PAGE_WRITE)) == 0)
- return;
-
- pmd_hugepage_update(mm, addr, pmdp, _PAGE_WRITE, 0);
+ if (__pmd_write((*pmdp)))
+ pmd_hugepage_update(mm, addr, pmdp, _PAGE_WRITE, 0);
+ else if (unlikely(pmd_savedwrite(*pmdp)))
+ pmd_hugepage_update(mm, addr, pmdp, 0, _PAGE_PRIVILEGED);
}
static inline int pmd_trans_huge(pmd_t pmd)
diff --git a/arch/powerpc/include/asm/checksum.h b/arch/powerpc/include/asm/checksum.h
index 4e63787..842124b 100644
--- a/arch/powerpc/include/asm/checksum.h
+++ b/arch/powerpc/include/asm/checksum.h
@@ -112,7 +112,7 @@
#ifdef __powerpc64__
res += (__force u64)addend;
- return (__force __wsum)((u32)res + (res >> 32));
+ return (__force __wsum) from64to32(res);
#else
asm("addc %0,%0,%1;"
"addze %0,%0;"
diff --git a/arch/powerpc/include/asm/cpuidle.h b/arch/powerpc/include/asm/cpuidle.h
index fd321eb4..1557315 100644
--- a/arch/powerpc/include/asm/cpuidle.h
+++ b/arch/powerpc/include/asm/cpuidle.h
@@ -70,8 +70,8 @@
std r0,0(r1); \
ptesync; \
ld r0,0(r1); \
-1: cmpd cr0,r0,r0; \
- bne 1b; \
+236: cmpd cr0,r0,r0; \
+ bne 236b; \
IDLE_INST; \
#define IDLE_STATE_ENTER_SEQ_NORET(IDLE_INST) \
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 93b9b84..09bde6e 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -144,8 +144,8 @@
#define ARCH_DLINFO_CACHE_GEOMETRY \
NEW_AUX_ENT(AT_L1I_CACHESIZE, ppc64_caches.l1i.size); \
NEW_AUX_ENT(AT_L1I_CACHEGEOMETRY, get_cache_geometry(l1i)); \
- NEW_AUX_ENT(AT_L1D_CACHESIZE, ppc64_caches.l1i.size); \
- NEW_AUX_ENT(AT_L1D_CACHEGEOMETRY, get_cache_geometry(l1i)); \
+ NEW_AUX_ENT(AT_L1D_CACHESIZE, ppc64_caches.l1d.size); \
+ NEW_AUX_ENT(AT_L1D_CACHEGEOMETRY, get_cache_geometry(l1d)); \
NEW_AUX_ENT(AT_L2_CACHESIZE, ppc64_caches.l2.size); \
NEW_AUX_ENT(AT_L2_CACHEGEOMETRY, get_cache_geometry(l2)); \
NEW_AUX_ENT(AT_L3_CACHESIZE, ppc64_caches.l3.size); \
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index ba9921b..5134ade 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -1,6 +1,7 @@
#ifndef _ASM_POWERPC_NOHASH_32_PGTABLE_H
#define _ASM_POWERPC_NOHASH_32_PGTABLE_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#ifndef __ASSEMBLY__
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h
index d0db987..9f4de0a 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h
@@ -1,5 +1,8 @@
#ifndef _ASM_POWERPC_NOHASH_64_PGTABLE_4K_H
#define _ASM_POWERPC_NOHASH_64_PGTABLE_4K_H
+
+#include <asm-generic/5level-fixup.h>
+
/*
* Entries per page directory level. The PTE level must use a 64b record
* for each page table entry. The PMD and PGD level use a 32b record for
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable-64k.h b/arch/powerpc/include/asm/nohash/64/pgtable-64k.h
index 55b28ef..1facb58 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable-64k.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable-64k.h
@@ -1,6 +1,7 @@
#ifndef _ASM_POWERPC_NOHASH_64_PGTABLE_64K_H
#define _ASM_POWERPC_NOHASH_64_PGTABLE_64K_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h
index 0cd8a38..e5805ad 100644
--- a/arch/powerpc/include/asm/nohash/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/pgtable.h
@@ -230,7 +230,7 @@
return ((hpd_val(hpd) & 0x4) != 0);
#else
/* We clear the top bit to indicate hugepd */
- return ((hpd_val(hpd) & PD_HUGE) == 0);
+ return (hpd_val(hpd) && (hpd_val(hpd) & PD_HUGE) == 0);
#endif
}
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index d99bd44..e7d6d86 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -284,6 +284,13 @@
#define PPC_INST_BRANCH_COND 0x40800000
#define PPC_INST_LBZCIX 0x7c0006aa
#define PPC_INST_STBCIX 0x7c0007aa
+#define PPC_INST_LWZX 0x7c00002e
+#define PPC_INST_LFSX 0x7c00042e
+#define PPC_INST_STFSX 0x7c00052e
+#define PPC_INST_LFDX 0x7c0004ae
+#define PPC_INST_STFDX 0x7c0005ae
+#define PPC_INST_LVX 0x7c0000ce
+#define PPC_INST_STVX 0x7c0001ce
/* macros to insert fields into opcodes */
#define ___PPC_RA(a) (((a) & 0x1f) << 16)
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 4a90634..35c00d7 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -160,12 +160,18 @@
#define OV5_PFO_HW_ENCR 0x1120 /* PFO Encryption Accelerator */
#define OV5_SUB_PROCESSORS 0x1501 /* 1,2,or 4 Sub-Processors supported */
#define OV5_XIVE_EXPLOIT 0x1701 /* XIVE exploitation supported */
-#define OV5_MMU_RADIX_300 0x1880 /* ISA v3.00 radix MMU supported */
-#define OV5_MMU_HASH_300 0x1840 /* ISA v3.00 hash MMU supported */
-#define OV5_MMU_SEGM_RADIX 0x1820 /* radix mode (no segmentation) */
-#define OV5_MMU_PROC_TBL 0x1810 /* hcall selects SLB or proc table */
-#define OV5_MMU_SLB 0x1800 /* always use SLB */
-#define OV5_MMU_GTSE 0x1808 /* Guest translation shootdown */
+/* MMU Base Architecture */
+#define OV5_MMU_SUPPORT 0x18C0 /* MMU Mode Support Mask */
+#define OV5_MMU_HASH 0x1800 /* Hash MMU Only */
+#define OV5_MMU_RADIX 0x1840 /* Radix MMU Only */
+#define OV5_MMU_EITHER 0x1880 /* Hash or Radix Supported */
+#define OV5_MMU_DYNAMIC 0x18C0 /* Hash or Radix Can Switch Later */
+#define OV5_NMMU 0x1820 /* Nest MMU Available */
+/* Hash Table Extensions */
+#define OV5_HASH_SEG_TBL 0x1980 /* In Memory Segment Tables Available */
+#define OV5_HASH_GTSE 0x1940 /* Guest Translation Shoot Down Avail */
+/* Radix Table Extensions */
+#define OV5_RADIX_GTSE 0x1A40 /* Guest Translation Shoot Down Avail */
/* Option Vector 6: IBM PAPR hints */
#define OV6_LINUX 0x02 /* Linux is our OS */
diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S
index 5f61cc0..9957287 100644
--- a/arch/powerpc/kernel/idle_book3s.S
+++ b/arch/powerpc/kernel/idle_book3s.S
@@ -276,19 +276,21 @@
*/
andis. r4,r3,PSSCR_EC_ESL_MASK_SHIFTED
clrldi r3,r3,60 /* r3 = Bits[60:63] = Requested Level (RL) */
- bne 1f
+ bne .Lhandle_esl_ec_set
IDLE_STATE_ENTER_SEQ(PPC_STOP)
li r3,0 /* Since we didn't lose state, return 0 */
b pnv_wakeup_noloss
+
+.Lhandle_esl_ec_set:
/*
* Check if the requested state is a deep idle state.
*/
-1: LOAD_REG_ADDRBASE(r5,pnv_first_deep_stop_state)
+ LOAD_REG_ADDRBASE(r5,pnv_first_deep_stop_state)
ld r4,ADDROFF(pnv_first_deep_stop_state)(r5)
cmpd r3,r4
- bge 2f
+ bge .Lhandle_deep_stop
IDLE_STATE_ENTER_SEQ_NORET(PPC_STOP)
-2:
+.Lhandle_deep_stop:
/*
* Entering deep idle state.
* Clear thread bit in PACA_CORE_IDLE_STATE, save SPRs to
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index a394454..1c1b44e 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -168,6 +168,14 @@
static unsigned long __initdata prom_tce_alloc_end;
#endif
+static bool __initdata prom_radix_disable;
+
+struct platform_support {
+ bool hash_mmu;
+ bool radix_mmu;
+ bool radix_gtse;
+};
+
/* Platforms codes are now obsolete in the kernel. Now only used within this
* file and ultimately gone too. Feel free to change them if you need, they
* are not shared with anything outside of this file anymore
@@ -626,6 +634,12 @@
prom_memory_limit = ALIGN(prom_memory_limit, 0x1000000);
#endif
}
+
+ opt = strstr(prom_cmd_line, "disable_radix");
+ if (opt) {
+ prom_debug("Radix disabled from cmdline\n");
+ prom_radix_disable = true;
+ }
}
#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
@@ -695,6 +709,8 @@
u8 byte22;
u8 intarch;
u8 mmu;
+ u8 hash_ext;
+ u8 radix_ext;
} __packed;
struct option_vector6 {
@@ -850,8 +866,9 @@
.reserved3 = 0,
.subprocessors = 1,
.intarch = 0,
- .mmu = OV5_FEAT(OV5_MMU_RADIX_300) | OV5_FEAT(OV5_MMU_HASH_300) |
- OV5_FEAT(OV5_MMU_PROC_TBL) | OV5_FEAT(OV5_MMU_GTSE),
+ .mmu = 0,
+ .hash_ext = 0,
+ .radix_ext = 0,
},
/* option vector 6: IBM PAPR hints */
@@ -990,6 +1007,92 @@
}
+static void __init prom_parse_mmu_model(u8 val,
+ struct platform_support *support)
+{
+ switch (val) {
+ case OV5_FEAT(OV5_MMU_DYNAMIC):
+ case OV5_FEAT(OV5_MMU_EITHER): /* Either Available */
+ prom_debug("MMU - either supported\n");
+ support->radix_mmu = !prom_radix_disable;
+ support->hash_mmu = true;
+ break;
+ case OV5_FEAT(OV5_MMU_RADIX): /* Only Radix */
+ prom_debug("MMU - radix only\n");
+ if (prom_radix_disable) {
+ /*
+ * If we __have__ to do radix, we're better off ignoring
+ * the command line rather than not booting.
+ */
+ prom_printf("WARNING: Ignoring cmdline option disable_radix\n");
+ }
+ support->radix_mmu = true;
+ break;
+ case OV5_FEAT(OV5_MMU_HASH):
+ prom_debug("MMU - hash only\n");
+ support->hash_mmu = true;
+ break;
+ default:
+ prom_debug("Unknown mmu support option: 0x%x\n", val);
+ break;
+ }
+}
+
+static void __init prom_parse_platform_support(u8 index, u8 val,
+ struct platform_support *support)
+{
+ switch (index) {
+ case OV5_INDX(OV5_MMU_SUPPORT): /* MMU Model */
+ prom_parse_mmu_model(val & OV5_FEAT(OV5_MMU_SUPPORT), support);
+ break;
+ case OV5_INDX(OV5_RADIX_GTSE): /* Radix Extensions */
+ if (val & OV5_FEAT(OV5_RADIX_GTSE)) {
+ prom_debug("Radix - GTSE supported\n");
+ support->radix_gtse = true;
+ }
+ break;
+ }
+}
+
+static void __init prom_check_platform_support(void)
+{
+ struct platform_support supported = {
+ .hash_mmu = false,
+ .radix_mmu = false,
+ .radix_gtse = false
+ };
+ int prop_len = prom_getproplen(prom.chosen,
+ "ibm,arch-vec-5-platform-support");
+ if (prop_len > 1) {
+ int i;
+ u8 vec[prop_len];
+ prom_debug("Found ibm,arch-vec-5-platform-support, len: %d\n",
+ prop_len);
+ prom_getprop(prom.chosen, "ibm,arch-vec-5-platform-support",
+ &vec, sizeof(vec));
+ for (i = 0; i < prop_len; i += 2) {
+ prom_debug("%d: index = 0x%x val = 0x%x\n", i / 2
+ , vec[i]
+ , vec[i + 1]);
+ prom_parse_platform_support(vec[i], vec[i + 1],
+ &supported);
+ }
+ }
+
+ if (supported.radix_mmu && supported.radix_gtse) {
+ /* Radix preferred - but we require GTSE for now */
+ prom_debug("Asking for radix with GTSE\n");
+ ibm_architecture_vec.vec5.mmu = OV5_FEAT(OV5_MMU_RADIX);
+ ibm_architecture_vec.vec5.radix_ext = OV5_FEAT(OV5_RADIX_GTSE);
+ } else if (supported.hash_mmu) {
+ /* Default to hash mmu (if we can) */
+ prom_debug("Asking for hash\n");
+ ibm_architecture_vec.vec5.mmu = OV5_FEAT(OV5_MMU_HASH);
+ } else {
+ /* We're probably on a legacy hypervisor */
+ prom_debug("Assuming legacy hash support\n");
+ }
+}
static void __init prom_send_capabilities(void)
{
@@ -997,6 +1100,9 @@
prom_arg_t ret;
u32 cores;
+ /* Check ibm,arch-vec-5-platform-support and fixup vec5 if required */
+ prom_check_platform_support();
+
root = call_prom("open", 1, 1, ADDR("/"));
if (root != 0) {
/* We need to tell the FW about the number of cores we support.
@@ -2993,6 +3099,11 @@
*/
prom_check_initrd(r3, r4);
+ /*
+ * Do early parsing of command line
+ */
+ early_cmdline_parse();
+
#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
/*
* On pSeries, inform the firmware about our capabilities
@@ -3009,11 +3120,6 @@
copy_and_flush(0, kbase, 0x100, 0);
/*
- * Do early parsing of command line
- */
- early_cmdline_parse();
-
- /*
* Initialize memory management within prom_init
*/
prom_init_mem();
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index adf2084..9cfaa8b 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -408,7 +408,10 @@
info->line_size = lsize;
info->block_size = bsize;
info->log_block_size = __ilog2(bsize);
- info->blocks_per_page = PAGE_SIZE / bsize;
+ if (bsize)
+ info->blocks_per_page = PAGE_SIZE / bsize;
+ else
+ info->blocks_per_page = 0;
if (sets == 0)
info->assoc = 0xffff;
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index f3158fb..8c68145 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -601,7 +601,7 @@
hva, NULL, NULL);
if (ptep) {
pte = kvmppc_read_update_linux_pte(ptep, 1);
- if (pte_write(pte))
+ if (__pte_write(pte))
write_ok = 1;
}
local_irq_restore(flags);
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 6fca970..ce6f212 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -256,7 +256,7 @@
}
pte = kvmppc_read_update_linux_pte(ptep, writing);
if (pte_present(pte) && !pte_protnone(pte)) {
- if (writing && !pte_write(pte))
+ if (writing && !__pte_write(pte))
/* make the actual HPTE be read-only */
ptel = hpte_make_readonly(ptel);
is_ci = pte_ci(pte);
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 0e649d7..2b5e090 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -20,6 +20,7 @@
obj64-$(CONFIG_SMP) += locks.o
obj64-$(CONFIG_ALTIVEC) += vmx-helper.o
+obj64-$(CONFIG_KPROBES_SANITY_TEST) += test_emulate_step.o
obj-y += checksum_$(BITS).o checksum_wrappers.o
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 846dba2..9c542ec 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -1799,8 +1799,6 @@
goto instr_done;
case LARX:
- if (regs->msr & MSR_LE)
- return 0;
if (op.ea & (size - 1))
break; /* can't handle misaligned */
if (!address_ok(regs, op.ea, size))
@@ -1823,8 +1821,6 @@
goto ldst_done;
case STCX:
- if (regs->msr & MSR_LE)
- return 0;
if (op.ea & (size - 1))
break; /* can't handle misaligned */
if (!address_ok(regs, op.ea, size))
@@ -1849,8 +1845,6 @@
goto ldst_done;
case LOAD:
- if (regs->msr & MSR_LE)
- return 0;
err = read_mem(®s->gpr[op.reg], op.ea, size, regs);
if (!err) {
if (op.type & SIGNEXT)
@@ -1862,8 +1856,6 @@
#ifdef CONFIG_PPC_FPU
case LOAD_FP:
- if (regs->msr & MSR_LE)
- return 0;
if (size == 4)
err = do_fp_load(op.reg, do_lfs, op.ea, size, regs);
else
@@ -1872,15 +1864,11 @@
#endif
#ifdef CONFIG_ALTIVEC
case LOAD_VMX:
- if (regs->msr & MSR_LE)
- return 0;
err = do_vec_load(op.reg, do_lvx, op.ea & ~0xfUL, regs);
goto ldst_done;
#endif
#ifdef CONFIG_VSX
case LOAD_VSX:
- if (regs->msr & MSR_LE)
- return 0;
err = do_vsx_load(op.reg, do_lxvd2x, op.ea, regs);
goto ldst_done;
#endif
@@ -1903,8 +1891,6 @@
goto instr_done;
case STORE:
- if (regs->msr & MSR_LE)
- return 0;
if ((op.type & UPDATE) && size == sizeof(long) &&
op.reg == 1 && op.update_reg == 1 &&
!(regs->msr & MSR_PR) &&
@@ -1917,8 +1903,6 @@
#ifdef CONFIG_PPC_FPU
case STORE_FP:
- if (regs->msr & MSR_LE)
- return 0;
if (size == 4)
err = do_fp_store(op.reg, do_stfs, op.ea, size, regs);
else
@@ -1927,15 +1911,11 @@
#endif
#ifdef CONFIG_ALTIVEC
case STORE_VMX:
- if (regs->msr & MSR_LE)
- return 0;
err = do_vec_store(op.reg, do_stvx, op.ea & ~0xfUL, regs);
goto ldst_done;
#endif
#ifdef CONFIG_VSX
case STORE_VSX:
- if (regs->msr & MSR_LE)
- return 0;
err = do_vsx_store(op.reg, do_stxvd2x, op.ea, regs);
goto ldst_done;
#endif
diff --git a/arch/powerpc/lib/test_emulate_step.c b/arch/powerpc/lib/test_emulate_step.c
new file mode 100644
index 0000000..2534c14
--- /dev/null
+++ b/arch/powerpc/lib/test_emulate_step.c
@@ -0,0 +1,434 @@
+/*
+ * Simple sanity test for emulate_step load/store instructions.
+ *
+ * Copyright IBM Corp. 2016
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) "emulate_step_test: " fmt
+
+#include <linux/ptrace.h>
+#include <asm/sstep.h>
+#include <asm/ppc-opcode.h>
+
+#define IMM_L(i) ((uintptr_t)(i) & 0xffff)
+
+/*
+ * Defined with TEST_ prefix so it does not conflict with other
+ * definitions.
+ */
+#define TEST_LD(r, base, i) (PPC_INST_LD | ___PPC_RT(r) | \
+ ___PPC_RA(base) | IMM_L(i))
+#define TEST_LWZ(r, base, i) (PPC_INST_LWZ | ___PPC_RT(r) | \
+ ___PPC_RA(base) | IMM_L(i))
+#define TEST_LWZX(t, a, b) (PPC_INST_LWZX | ___PPC_RT(t) | \
+ ___PPC_RA(a) | ___PPC_RB(b))
+#define TEST_STD(r, base, i) (PPC_INST_STD | ___PPC_RS(r) | \
+ ___PPC_RA(base) | ((i) & 0xfffc))
+#define TEST_LDARX(t, a, b, eh) (PPC_INST_LDARX | ___PPC_RT(t) | \
+ ___PPC_RA(a) | ___PPC_RB(b) | \
+ __PPC_EH(eh))
+#define TEST_STDCX(s, a, b) (PPC_INST_STDCX | ___PPC_RS(s) | \
+ ___PPC_RA(a) | ___PPC_RB(b))
+#define TEST_LFSX(t, a, b) (PPC_INST_LFSX | ___PPC_RT(t) | \
+ ___PPC_RA(a) | ___PPC_RB(b))
+#define TEST_STFSX(s, a, b) (PPC_INST_STFSX | ___PPC_RS(s) | \
+ ___PPC_RA(a) | ___PPC_RB(b))
+#define TEST_LFDX(t, a, b) (PPC_INST_LFDX | ___PPC_RT(t) | \
+ ___PPC_RA(a) | ___PPC_RB(b))
+#define TEST_STFDX(s, a, b) (PPC_INST_STFDX | ___PPC_RS(s) | \
+ ___PPC_RA(a) | ___PPC_RB(b))
+#define TEST_LVX(t, a, b) (PPC_INST_LVX | ___PPC_RT(t) | \
+ ___PPC_RA(a) | ___PPC_RB(b))
+#define TEST_STVX(s, a, b) (PPC_INST_STVX | ___PPC_RS(s) | \
+ ___PPC_RA(a) | ___PPC_RB(b))
+#define TEST_LXVD2X(s, a, b) (PPC_INST_LXVD2X | VSX_XX1((s), R##a, R##b))
+#define TEST_STXVD2X(s, a, b) (PPC_INST_STXVD2X | VSX_XX1((s), R##a, R##b))
+
+
+static void __init init_pt_regs(struct pt_regs *regs)
+{
+ static unsigned long msr;
+ static bool msr_cached;
+
+ memset(regs, 0, sizeof(struct pt_regs));
+
+ if (likely(msr_cached)) {
+ regs->msr = msr;
+ return;
+ }
+
+ asm volatile("mfmsr %0" : "=r"(regs->msr));
+
+ regs->msr |= MSR_FP;
+ regs->msr |= MSR_VEC;
+ regs->msr |= MSR_VSX;
+
+ msr = regs->msr;
+ msr_cached = true;
+}
+
+static void __init show_result(char *ins, char *result)
+{
+ pr_info("%-14s : %s\n", ins, result);
+}
+
+static void __init test_ld(void)
+{
+ struct pt_regs regs;
+ unsigned long a = 0x23;
+ int stepped = -1;
+
+ init_pt_regs(®s);
+ regs.gpr[3] = (unsigned long) &a;
+
+ /* ld r5, 0(r3) */
+ stepped = emulate_step(®s, TEST_LD(5, 3, 0));
+
+ if (stepped == 1 && regs.gpr[5] == a)
+ show_result("ld", "PASS");
+ else
+ show_result("ld", "FAIL");
+}
+
+static void __init test_lwz(void)
+{
+ struct pt_regs regs;
+ unsigned int a = 0x4545;
+ int stepped = -1;
+
+ init_pt_regs(®s);
+ regs.gpr[3] = (unsigned long) &a;
+
+ /* lwz r5, 0(r3) */
+ stepped = emulate_step(®s, TEST_LWZ(5, 3, 0));
+
+ if (stepped == 1 && regs.gpr[5] == a)
+ show_result("lwz", "PASS");
+ else
+ show_result("lwz", "FAIL");
+}
+
+static void __init test_lwzx(void)
+{
+ struct pt_regs regs;
+ unsigned int a[3] = {0x0, 0x0, 0x1234};
+ int stepped = -1;
+
+ init_pt_regs(®s);
+ regs.gpr[3] = (unsigned long) a;
+ regs.gpr[4] = 8;
+ regs.gpr[5] = 0x8765;
+
+ /* lwzx r5, r3, r4 */
+ stepped = emulate_step(®s, TEST_LWZX(5, 3, 4));
+ if (stepped == 1 && regs.gpr[5] == a[2])
+ show_result("lwzx", "PASS");
+ else
+ show_result("lwzx", "FAIL");
+}
+
+static void __init test_std(void)
+{
+ struct pt_regs regs;
+ unsigned long a = 0x1234;
+ int stepped = -1;
+
+ init_pt_regs(®s);
+ regs.gpr[3] = (unsigned long) &a;
+ regs.gpr[5] = 0x5678;
+
+ /* std r5, 0(r3) */
+ stepped = emulate_step(®s, TEST_STD(5, 3, 0));
+ if (stepped == 1 || regs.gpr[5] == a)
+ show_result("std", "PASS");
+ else
+ show_result("std", "FAIL");
+}
+
+static void __init test_ldarx_stdcx(void)
+{
+ struct pt_regs regs;
+ unsigned long a = 0x1234;
+ int stepped = -1;
+ unsigned long cr0_eq = 0x1 << 29; /* eq bit of CR0 */
+
+ init_pt_regs(®s);
+ asm volatile("mfcr %0" : "=r"(regs.ccr));
+
+
+ /*** ldarx ***/
+
+ regs.gpr[3] = (unsigned long) &a;
+ regs.gpr[4] = 0;
+ regs.gpr[5] = 0x5678;
+
+ /* ldarx r5, r3, r4, 0 */
+ stepped = emulate_step(®s, TEST_LDARX(5, 3, 4, 0));
+
+ /*
+ * Don't touch 'a' here. Touching 'a' can do Load/store
+ * of 'a' which result in failure of subsequent stdcx.
+ * Instead, use hardcoded value for comparison.
+ */
+ if (stepped <= 0 || regs.gpr[5] != 0x1234) {
+ show_result("ldarx / stdcx.", "FAIL (ldarx)");
+ return;
+ }
+
+
+ /*** stdcx. ***/
+
+ regs.gpr[5] = 0x9ABC;
+
+ /* stdcx. r5, r3, r4 */
+ stepped = emulate_step(®s, TEST_STDCX(5, 3, 4));
+
+ /*
+ * Two possible scenarios that indicates successful emulation
+ * of stdcx. :
+ * 1. Reservation is active and store is performed. In this
+ * case cr0.eq bit will be set to 1.
+ * 2. Reservation is not active and store is not performed.
+ * In this case cr0.eq bit will be set to 0.
+ */
+ if (stepped == 1 && ((regs.gpr[5] == a && (regs.ccr & cr0_eq))
+ || (regs.gpr[5] != a && !(regs.ccr & cr0_eq))))
+ show_result("ldarx / stdcx.", "PASS");
+ else
+ show_result("ldarx / stdcx.", "FAIL (stdcx.)");
+}
+
+#ifdef CONFIG_PPC_FPU
+static void __init test_lfsx_stfsx(void)
+{
+ struct pt_regs regs;
+ union {
+ float a;
+ int b;
+ } c;
+ int cached_b;
+ int stepped = -1;
+
+ init_pt_regs(®s);
+
+
+ /*** lfsx ***/
+
+ c.a = 123.45;
+ cached_b = c.b;
+
+ regs.gpr[3] = (unsigned long) &c.a;
+ regs.gpr[4] = 0;
+
+ /* lfsx frt10, r3, r4 */
+ stepped = emulate_step(®s, TEST_LFSX(10, 3, 4));
+
+ if (stepped == 1)
+ show_result("lfsx", "PASS");
+ else
+ show_result("lfsx", "FAIL");
+
+
+ /*** stfsx ***/
+
+ c.a = 678.91;
+
+ /* stfsx frs10, r3, r4 */
+ stepped = emulate_step(®s, TEST_STFSX(10, 3, 4));
+
+ if (stepped == 1 && c.b == cached_b)
+ show_result("stfsx", "PASS");
+ else
+ show_result("stfsx", "FAIL");
+}
+
+static void __init test_lfdx_stfdx(void)
+{
+ struct pt_regs regs;
+ union {
+ double a;
+ long b;
+ } c;
+ long cached_b;
+ int stepped = -1;
+
+ init_pt_regs(®s);
+
+
+ /*** lfdx ***/
+
+ c.a = 123456.78;
+ cached_b = c.b;
+
+ regs.gpr[3] = (unsigned long) &c.a;
+ regs.gpr[4] = 0;
+
+ /* lfdx frt10, r3, r4 */
+ stepped = emulate_step(®s, TEST_LFDX(10, 3, 4));
+
+ if (stepped == 1)
+ show_result("lfdx", "PASS");
+ else
+ show_result("lfdx", "FAIL");
+
+
+ /*** stfdx ***/
+
+ c.a = 987654.32;
+
+ /* stfdx frs10, r3, r4 */
+ stepped = emulate_step(®s, TEST_STFDX(10, 3, 4));
+
+ if (stepped == 1 && c.b == cached_b)
+ show_result("stfdx", "PASS");
+ else
+ show_result("stfdx", "FAIL");
+}
+#else
+static void __init test_lfsx_stfsx(void)
+{
+ show_result("lfsx", "SKIP (CONFIG_PPC_FPU is not set)");
+ show_result("stfsx", "SKIP (CONFIG_PPC_FPU is not set)");
+}
+
+static void __init test_lfdx_stfdx(void)
+{
+ show_result("lfdx", "SKIP (CONFIG_PPC_FPU is not set)");
+ show_result("stfdx", "SKIP (CONFIG_PPC_FPU is not set)");
+}
+#endif /* CONFIG_PPC_FPU */
+
+#ifdef CONFIG_ALTIVEC
+static void __init test_lvx_stvx(void)
+{
+ struct pt_regs regs;
+ union {
+ vector128 a;
+ u32 b[4];
+ } c;
+ u32 cached_b[4];
+ int stepped = -1;
+
+ init_pt_regs(®s);
+
+
+ /*** lvx ***/
+
+ cached_b[0] = c.b[0] = 923745;
+ cached_b[1] = c.b[1] = 2139478;
+ cached_b[2] = c.b[2] = 9012;
+ cached_b[3] = c.b[3] = 982134;
+
+ regs.gpr[3] = (unsigned long) &c.a;
+ regs.gpr[4] = 0;
+
+ /* lvx vrt10, r3, r4 */
+ stepped = emulate_step(®s, TEST_LVX(10, 3, 4));
+
+ if (stepped == 1)
+ show_result("lvx", "PASS");
+ else
+ show_result("lvx", "FAIL");
+
+
+ /*** stvx ***/
+
+ c.b[0] = 4987513;
+ c.b[1] = 84313948;
+ c.b[2] = 71;
+ c.b[3] = 498532;
+
+ /* stvx vrs10, r3, r4 */
+ stepped = emulate_step(®s, TEST_STVX(10, 3, 4));
+
+ if (stepped == 1 && cached_b[0] == c.b[0] && cached_b[1] == c.b[1] &&
+ cached_b[2] == c.b[2] && cached_b[3] == c.b[3])
+ show_result("stvx", "PASS");
+ else
+ show_result("stvx", "FAIL");
+}
+#else
+static void __init test_lvx_stvx(void)
+{
+ show_result("lvx", "SKIP (CONFIG_ALTIVEC is not set)");
+ show_result("stvx", "SKIP (CONFIG_ALTIVEC is not set)");
+}
+#endif /* CONFIG_ALTIVEC */
+
+#ifdef CONFIG_VSX
+static void __init test_lxvd2x_stxvd2x(void)
+{
+ struct pt_regs regs;
+ union {
+ vector128 a;
+ u32 b[4];
+ } c;
+ u32 cached_b[4];
+ int stepped = -1;
+
+ init_pt_regs(®s);
+
+
+ /*** lxvd2x ***/
+
+ cached_b[0] = c.b[0] = 18233;
+ cached_b[1] = c.b[1] = 34863571;
+ cached_b[2] = c.b[2] = 834;
+ cached_b[3] = c.b[3] = 6138911;
+
+ regs.gpr[3] = (unsigned long) &c.a;
+ regs.gpr[4] = 0;
+
+ /* lxvd2x vsr39, r3, r4 */
+ stepped = emulate_step(®s, TEST_LXVD2X(39, 3, 4));
+
+ if (stepped == 1)
+ show_result("lxvd2x", "PASS");
+ else
+ show_result("lxvd2x", "FAIL");
+
+
+ /*** stxvd2x ***/
+
+ c.b[0] = 21379463;
+ c.b[1] = 87;
+ c.b[2] = 374234;
+ c.b[3] = 4;
+
+ /* stxvd2x vsr39, r3, r4 */
+ stepped = emulate_step(®s, TEST_STXVD2X(39, 3, 4));
+
+ if (stepped == 1 && cached_b[0] == c.b[0] && cached_b[1] == c.b[1] &&
+ cached_b[2] == c.b[2] && cached_b[3] == c.b[3])
+ show_result("stxvd2x", "PASS");
+ else
+ show_result("stxvd2x", "FAIL");
+}
+#else
+static void __init test_lxvd2x_stxvd2x(void)
+{
+ show_result("lxvd2x", "SKIP (CONFIG_VSX is not set)");
+ show_result("stxvd2x", "SKIP (CONFIG_VSX is not set)");
+}
+#endif /* CONFIG_VSX */
+
+static int __init test_emulate_step(void)
+{
+ test_ld();
+ test_lwz();
+ test_lwzx();
+ test_std();
+ test_ldarx_stdcx();
+ test_lfsx_stfsx();
+ test_lfdx_stfdx();
+ test_lvx_stvx();
+ test_lxvd2x_stxvd2x();
+
+ return 0;
+}
+late_initcall(test_emulate_step);
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 6aa3b76..9be9920 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -356,18 +356,42 @@
unsigned long root, chosen;
int size;
const u8 *vec5;
+ u8 mmu_supported;
root = of_get_flat_dt_root();
chosen = of_get_flat_dt_subnode_by_name(root, "chosen");
- if (chosen == -FDT_ERR_NOTFOUND)
- return;
- vec5 = of_get_flat_dt_prop(chosen, "ibm,architecture-vec-5", &size);
- if (!vec5)
- return;
- if (size <= OV5_INDX(OV5_MMU_RADIX_300) ||
- !(vec5[OV5_INDX(OV5_MMU_RADIX_300)] & OV5_FEAT(OV5_MMU_RADIX_300)))
- /* Hypervisor doesn't support radix */
+ if (chosen == -FDT_ERR_NOTFOUND) {
cur_cpu_spec->mmu_features &= ~MMU_FTR_TYPE_RADIX;
+ return;
+ }
+ vec5 = of_get_flat_dt_prop(chosen, "ibm,architecture-vec-5", &size);
+ if (!vec5) {
+ cur_cpu_spec->mmu_features &= ~MMU_FTR_TYPE_RADIX;
+ return;
+ }
+ if (size <= OV5_INDX(OV5_MMU_SUPPORT)) {
+ cur_cpu_spec->mmu_features &= ~MMU_FTR_TYPE_RADIX;
+ return;
+ }
+
+ /* Check for supported configuration */
+ mmu_supported = vec5[OV5_INDX(OV5_MMU_SUPPORT)] &
+ OV5_FEAT(OV5_MMU_SUPPORT);
+ if (mmu_supported == OV5_FEAT(OV5_MMU_RADIX)) {
+ /* Hypervisor only supports radix - check enabled && GTSE */
+ if (!early_radix_enabled()) {
+ pr_warn("WARNING: Ignoring cmdline option disable_radix\n");
+ }
+ if (!(vec5[OV5_INDX(OV5_RADIX_GTSE)] &
+ OV5_FEAT(OV5_RADIX_GTSE))) {
+ pr_warn("WARNING: Hypervisor doesn't support RADIX with GTSE\n");
+ }
+ /* Do radix anyway - the hypervisor said we had to */
+ cur_cpu_spec->mmu_features |= MMU_FTR_TYPE_RADIX;
+ } else if (mmu_supported == OV5_FEAT(OV5_MMU_HASH)) {
+ /* Hypervisor only supports hash - disable radix */
+ cur_cpu_spec->mmu_features &= ~MMU_FTR_TYPE_RADIX;
+ }
}
void __init mmu_early_init_devtree(void)
@@ -383,7 +407,7 @@
* even though the ibm,architecture-vec-5 property created by
* skiboot doesn't have the necessary bits set.
*/
- if (early_radix_enabled() && !(mfmsr() & MSR_HV))
+ if (!(mfmsr() & MSR_HV))
early_check_vec5();
if (early_radix_enabled())
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index 2a590a9..c28165d 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -186,6 +186,10 @@
*/
register_process_table(__pa(process_tb), 0, PRTB_SIZE_SHIFT - 12);
pr_info("Process table %p and radix root for kernel: %p\n", process_tb, init_mm.pgd);
+ asm volatile("ptesync" : : : "memory");
+ asm volatile(PPC_TLBIE_5(%0,%1,2,1,1) : :
+ "r" (TLBIEL_INVAL_SET_LPID), "r" (0));
+ asm volatile("eieio; tlbsync; ptesync" : : : "memory");
}
static void __init radix_init_partition_table(void)
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 6693f75..da8a0f7 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -39,8 +39,8 @@
BEGIN_FTR_SECTION; \
b 1f; \
END_FTR_SECTION(0, 1); \
- ld r12,opal_tracepoint_refcount@toc(r2); \
- cmpdi r12,0; \
+ ld r11,opal_tracepoint_refcount@toc(r2); \
+ cmpdi r11,0; \
bne- LABEL; \
1:
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index ada29ea..f523ac8 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -274,7 +274,9 @@
if (bank->disk->major > 0)
unregister_blkdev(bank->disk->major,
bank->disk->disk_name);
- del_gendisk(bank->disk);
+ if (bank->disk->flags & GENHD_FL_UP)
+ del_gendisk(bank->disk);
+ put_disk(bank->disk);
}
device->dev.platform_data = NULL;
if (bank->io_addr != 0)
@@ -299,6 +301,7 @@
device_remove_file(&device->dev, &dev_attr_ecc);
free_irq(bank->irq_id, device);
del_gendisk(bank->disk);
+ put_disk(bank->disk);
iounmap((void __iomem *) bank->io_addr);
kfree(bank);
diff --git a/arch/powerpc/sysdev/xics/icp-opal.c b/arch/powerpc/sysdev/xics/icp-opal.c
index f9670ea..b53f80f 100644
--- a/arch/powerpc/sysdev/xics/icp-opal.c
+++ b/arch/powerpc/sysdev/xics/icp-opal.c
@@ -91,6 +91,16 @@
static void icp_opal_set_cpu_priority(unsigned char cppr)
{
+ /*
+ * Here be dragons. The caller has asked to allow only IPI's and not
+ * external interrupts. But OPAL XIVE doesn't support that. So instead
+ * of allowing no interrupts allow all. That's still not right, but
+ * currently the only caller who does this is xics_migrate_irqs_away()
+ * and it works in that case.
+ */
+ if (cppr >= DEFAULT_PRIORITY)
+ cppr = LOWEST_PRIORITY;
+
xics_set_base_cppr(cppr);
opal_int_set_cppr(cppr);
iosync();
diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c
index 69d858e..23efe4e 100644
--- a/arch/powerpc/sysdev/xics/xics-common.c
+++ b/arch/powerpc/sysdev/xics/xics-common.c
@@ -20,6 +20,7 @@
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <linux/delay.h>
#include <asm/prom.h>
#include <asm/io.h>
@@ -198,9 +199,6 @@
/* Remove ourselves from the global interrupt queue */
xics_set_cpu_giq(xics_default_distrib_server, 0);
- /* Allow IPIs again... */
- icp_ops->set_priority(DEFAULT_PRIORITY);
-
for_each_irq_desc(virq, desc) {
struct irq_chip *chip;
long server;
@@ -255,6 +253,19 @@
unlock:
raw_spin_unlock_irqrestore(&desc->lock, flags);
}
+
+ /* Allow "sufficient" time to drop any inflight IRQ's */
+ mdelay(5);
+
+ /*
+ * Allow IPIs again. This is done at the very end, after migrating all
+ * interrupts, the expectation is that we'll only get woken up by an IPI
+ * interrupt beyond this point, but leave externals masked just to be
+ * safe. If we're using icp-opal this may actually allow all
+ * interrupts anyway, but that should be OK.
+ */
+ icp_ops->set_priority(DEFAULT_PRIORITY);
+
}
#endif /* CONFIG_HOTPLUG_CPU */
diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig
index 143b1e0..4b176fe 100644
--- a/arch/s390/configs/default_defconfig
+++ b/arch/s390/configs/default_defconfig
@@ -609,7 +609,7 @@
CONFIG_FTRACE_SYSCALLS=y
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENT=y
+CONFIG_UPROBE_EVENTS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_HIST_TRIGGERS=y
CONFIG_TRACE_ENUM_MAP_FILE=y
diff --git a/arch/s390/configs/gcov_defconfig b/arch/s390/configs/gcov_defconfig
index f05d2d6..0de46cc 100644
--- a/arch/s390/configs/gcov_defconfig
+++ b/arch/s390/configs/gcov_defconfig
@@ -560,7 +560,7 @@
CONFIG_FTRACE_SYSCALLS=y
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENT=y
+CONFIG_UPROBE_EVENTS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_HIST_TRIGGERS=y
CONFIG_TRACE_ENUM_MAP_FILE=y
diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig
index 2358bf3..e167557 100644
--- a/arch/s390/configs/performance_defconfig
+++ b/arch/s390/configs/performance_defconfig
@@ -558,7 +558,7 @@
CONFIG_FTRACE_SYSCALLS=y
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENT=y
+CONFIG_UPROBE_EVENTS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_HIST_TRIGGERS=y
CONFIG_TRACE_ENUM_MAP_FILE=y
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 68bfd09..97189db 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -179,7 +179,7 @@
CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENT=y
+CONFIG_UPROBE_EVENTS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_TRACE_ENUM_MAP_FILE=y
CONFIG_KPROBES_SANITY_TEST=y
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 7ed1972..93e37b1 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -24,6 +24,7 @@
* the S390 page table tree.
*/
#ifndef __ASSEMBLY__
+#include <asm-generic/5level-fixup.h>
#include <linux/sched.h>
#include <linux/mm_types.h>
#include <linux/page-flags.h>
diff --git a/arch/score/include/asm/pgtable.h b/arch/score/include/asm/pgtable.h
index 0553e5c..46ff8fd 100644
--- a/arch/score/include/asm/pgtable.h
+++ b/arch/score/include/asm/pgtable.h
@@ -2,6 +2,7 @@
#define _ASM_SCORE_PGTABLE_H
#include <linux/const.h>
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#include <asm/fixmap.h>
diff --git a/arch/sh/boards/mach-cayman/setup.c b/arch/sh/boards/mach-cayman/setup.c
index 340fd40..9c292c2 100644
--- a/arch/sh/boards/mach-cayman/setup.c
+++ b/arch/sh/boards/mach-cayman/setup.c
@@ -128,7 +128,6 @@
SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);
-#ifdef CONFIG_IDE
/*
* Only IDE1 exists on the Cayman
*/
@@ -158,7 +157,6 @@
SMSC_SUPERIO_WRITE_INDEXED(0x01, 0xc5); /* GP45 = IDE1_IRQ */
SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc6); /* GP46 = nIOROP */
SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
-#endif
/* Exit the configuration state */
outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
diff --git a/arch/sh/include/asm/pgtable-2level.h b/arch/sh/include/asm/pgtable-2level.h
index 19bd89d..f75cf43 100644
--- a/arch/sh/include/asm/pgtable-2level.h
+++ b/arch/sh/include/asm/pgtable-2level.h
@@ -1,6 +1,7 @@
#ifndef __ASM_SH_PGTABLE_2LEVEL_H
#define __ASM_SH_PGTABLE_2LEVEL_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
/*
diff --git a/arch/sh/include/asm/pgtable-3level.h b/arch/sh/include/asm/pgtable-3level.h
index 249a985..9b1e776 100644
--- a/arch/sh/include/asm/pgtable-3level.h
+++ b/arch/sh/include/asm/pgtable-3level.h
@@ -1,6 +1,7 @@
#ifndef __ASM_SH_PGTABLE_3LEVEL_H
#define __ASM_SH_PGTABLE_3LEVEL_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
/*
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 56e49c8..8a59852 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -12,6 +12,7 @@
* the SpitFire page tables.
*/
+#include <asm-generic/5level-fixup.h>
#include <linux/compiler.h>
#include <linux/const.h>
#include <asm/types.h>
diff --git a/arch/tile/include/asm/pgtable_32.h b/arch/tile/include/asm/pgtable_32.h
index d26a422..5f8c615 100644
--- a/arch/tile/include/asm/pgtable_32.h
+++ b/arch/tile/include/asm/pgtable_32.h
@@ -74,6 +74,7 @@
#define MAXMEM (_VMALLOC_START - PAGE_OFFSET)
/* We have no pmd or pud since we are strictly a two-level page table */
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
static inline int pud_huge_page(pud_t pud) { return 0; }
diff --git a/arch/tile/include/asm/pgtable_64.h b/arch/tile/include/asm/pgtable_64.h
index e96cec5..96fe58b 100644
--- a/arch/tile/include/asm/pgtable_64.h
+++ b/arch/tile/include/asm/pgtable_64.h
@@ -59,6 +59,7 @@
#ifndef __ASSEMBLY__
/* We have no pud since we are a three-level page table. */
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
/*
diff --git a/arch/um/include/asm/pgtable-2level.h b/arch/um/include/asm/pgtable-2level.h
index cfbe597..179c0ea 100644
--- a/arch/um/include/asm/pgtable-2level.h
+++ b/arch/um/include/asm/pgtable-2level.h
@@ -8,6 +8,7 @@
#ifndef __UM_PGTABLE_2LEVEL_H
#define __UM_PGTABLE_2LEVEL_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
/* PGDIR_SHIFT determines what a third-level page table entry can map */
diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h
index bae8523..c4d876d 100644
--- a/arch/um/include/asm/pgtable-3level.h
+++ b/arch/um/include/asm/pgtable-3level.h
@@ -7,6 +7,7 @@
#ifndef __UM_PGTABLE_3LEVEL_H
#define __UM_PGTABLE_3LEVEL_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
/* PGDIR_SHIFT determines what a third-level page table entry can map */
diff --git a/arch/unicore32/include/asm/pgtable.h b/arch/unicore32/include/asm/pgtable.h
index 818d0f5..a4f2bef 100644
--- a/arch/unicore32/include/asm/pgtable.h
+++ b/arch/unicore32/include/asm/pgtable.h
@@ -12,6 +12,7 @@
#ifndef __UNICORE_PGTABLE_H__
#define __UNICORE_PGTABLE_H__
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#include <asm/cpu-single.h>
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 7ef4a09..6205d3b 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -176,6 +176,7 @@
CONFIG_SKY2=y
CONFIG_FORCEDETH=y
CONFIG_8139TOO=y
+CONFIG_R8169=y
CONFIG_FDDI=y
CONFIG_INPUT_POLLDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
index afb222b..c84584b 100644
--- a/arch/x86/events/amd/core.c
+++ b/arch/x86/events/amd/core.c
@@ -604,7 +604,7 @@
return &amd_f15_PMC20;
}
case AMD_EVENT_NB:
- /* moved to perf_event_amd_uncore.c */
+ /* moved to uncore.c */
return &emptyconstraint;
default:
return &emptyconstraint;
diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index aff4b5b..238ae32 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -1,5 +1,5 @@
/*
- * perf_event_intel_cstate.c: support cstate residency counters
+ * Support cstate residency counters
*
* Copyright (C) 2015, Intel Corp.
* Author: Kan Liang (kan.liang@intel.com)
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 22054ca..9d05c7e 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -1,5 +1,5 @@
/*
- * perf_event_intel_rapl.c: support Intel RAPL energy consumption counters
+ * Support Intel RAPL energy consumption counters
* Copyright (C) 2013 Google, Inc., Stephane Eranian
*
* Intel RAPL interface is specified in the IA-32 Manual Vol3b
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
index ad986c1..df5989f 100644
--- a/arch/x86/events/intel/uncore.h
+++ b/arch/x86/events/intel/uncore.h
@@ -360,7 +360,7 @@
extern struct pci_extra_dev *uncore_extra_pci_dev;
extern struct event_constraint uncore_constraint_empty;
-/* perf_event_intel_uncore_snb.c */
+/* uncore_snb.c */
int snb_uncore_pci_init(void);
int ivb_uncore_pci_init(void);
int hsw_uncore_pci_init(void);
@@ -371,7 +371,7 @@
void skl_uncore_cpu_init(void);
int snb_pci2phy_map_init(int devid);
-/* perf_event_intel_uncore_snbep.c */
+/* uncore_snbep.c */
int snbep_uncore_pci_init(void);
void snbep_uncore_cpu_init(void);
int ivbep_uncore_pci_init(void);
@@ -385,5 +385,5 @@
int skx_uncore_pci_init(void);
void skx_uncore_cpu_init(void);
-/* perf_event_intel_uncore_nhmex.c */
+/* uncore_nhmex.c */
void nhmex_uncore_cpu_init(void);
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index db64baf0..8bef70e 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -158,13 +158,13 @@
clocksource_register_hz(&hyperv_cs_tsc, NSEC_PER_SEC/100);
return;
}
+register_msr_cs:
#endif
/*
* For 32 bit guests just use the MSR based mechanism for reading
* the partition counter.
*/
-register_msr_cs:
hyperv_cs = &hyperv_cs_msr;
if (ms_hyperv.features & HV_X64_MSR_TIME_REF_COUNT_AVAILABLE)
clocksource_register_hz(&hyperv_cs_msr, NSEC_PER_SEC/100);
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 4e77723..b04bb6d 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -289,7 +289,8 @@
#define X86_FEATURE_PKU (16*32+ 3) /* Protection Keys for Userspace */
#define X86_FEATURE_OSPKE (16*32+ 4) /* OS Protection Keys Enable */
#define X86_FEATURE_AVX512_VPOPCNTDQ (16*32+14) /* POPCNT for vectors of DW/QW */
-#define X86_FEATURE_RDPID (16*32+ 22) /* RDPID instruction */
+#define X86_FEATURE_LA57 (16*32+16) /* 5-level page tables */
+#define X86_FEATURE_RDPID (16*32+22) /* RDPID instruction */
/* AMD-defined CPU features, CPUID level 0x80000007 (ebx), word 17 */
#define X86_FEATURE_OVERFLOW_RECOV (17*32+0) /* MCA overflow recovery support */
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 8b4de22..6248433 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -273,6 +273,8 @@
}
#if CONFIG_PGTABLE_LEVELS > 3
+#include <asm-generic/5level-fixup.h>
+
typedef struct { pudval_t pud; } pud_t;
static inline pud_t native_make_pud(pmdval_t val)
@@ -285,6 +287,7 @@
return pud.pud;
}
#else
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopud.h>
static inline pudval_t native_pud_val(pud_t pud)
@@ -306,6 +309,7 @@
return pmd.pmd;
}
#else
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
static inline pmdval_t native_pmd_val(pmd_t pmd)
diff --git a/arch/x86/include/asm/pkeys.h b/arch/x86/include/asm/pkeys.h
index 34684ad..b3b09b9 100644
--- a/arch/x86/include/asm/pkeys.h
+++ b/arch/x86/include/asm/pkeys.h
@@ -46,6 +46,15 @@
static inline
bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey)
{
+ /*
+ * "Allocated" pkeys are those that have been returned
+ * from pkey_alloc(). pkey 0 is special, and never
+ * returned from pkey_alloc().
+ */
+ if (pkey <= 0)
+ return false;
+ if (pkey >= arch_max_pkey())
+ return false;
return mm_pkey_allocation_map(mm) & (1U << pkey);
}
@@ -82,12 +91,6 @@
static inline
int mm_pkey_free(struct mm_struct *mm, int pkey)
{
- /*
- * pkey 0 is special, always allocated and can never
- * be freed.
- */
- if (!pkey)
- return -EINVAL;
if (!mm_pkey_is_allocated(mm, pkey))
return -EINVAL;
diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h
index 5138dac..07244ea 100644
--- a/arch/x86/include/uapi/asm/bootparam.h
+++ b/arch/x86/include/uapi/asm/bootparam.h
@@ -58,7 +58,7 @@
__u32 header;
__u16 version;
__u32 realmode_swtch;
- __u16 start_sys;
+ __u16 start_sys_seg;
__u16 kernel_version;
__u8 type_of_loader;
__u8 loadflags;
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 4261b32..aee7ded 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1610,24 +1610,15 @@
static inline void __x2apic_enable(void) { }
#endif /* !CONFIG_X86_X2APIC */
-static int __init try_to_enable_IR(void)
-{
-#ifdef CONFIG_X86_IO_APIC
- if (!x2apic_enabled() && skip_ioapic_setup) {
- pr_info("Not enabling interrupt remapping due to skipped IO-APIC setup\n");
- return -1;
- }
-#endif
- return irq_remapping_enable();
-}
-
void __init enable_IR_x2apic(void)
{
unsigned long flags;
int ret, ir_stat;
- if (skip_ioapic_setup)
+ if (skip_ioapic_setup) {
+ pr_info("Not enabling interrupt remapping due to skipped IO-APIC setup\n");
return;
+ }
ir_stat = irq_remapping_prepare();
if (ir_stat < 0 && !x2apic_supported())
@@ -1645,7 +1636,7 @@
/* If irq_remapping_prepare() succeeded, try to enable it */
if (ir_stat >= 0)
- ir_stat = try_to_enable_IR();
+ ir_stat = irq_remapping_enable();
/* ir_stat contains the remap mode or an error code */
try_to_enable_x2apic(ir_stat);
@@ -2062,10 +2053,10 @@
/* Allocate a new cpuid. */
if (nr_logical_cpuids >= nr_cpu_ids) {
- WARN_ONCE(1, "Only %d processors supported."
+ WARN_ONCE(1, "APIC: NR_CPUS/possible_cpus limit of %i reached. "
"Processor %d/0x%x and the rest are ignored.\n",
- nr_cpu_ids - 1, nr_logical_cpuids, apicid);
- return -1;
+ nr_cpu_ids, nr_logical_cpuids, apicid);
+ return -EINVAL;
}
cpuid_to_apicid[nr_logical_cpuids] = apicid;
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 35a5d5d..c36140d 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -556,10 +556,6 @@
if (c->x86_power & (1 << 8)) {
set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);
- if (check_tsc_unstable())
- clear_sched_clock_stable();
- } else {
- clear_sched_clock_stable();
}
/* Bit 12 of 8000_0007 edx is accumulated power mechanism. */
diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c
index adc0ebd..43955ee 100644
--- a/arch/x86/kernel/cpu/centaur.c
+++ b/arch/x86/kernel/cpu/centaur.c
@@ -105,8 +105,6 @@
#ifdef CONFIG_X86_64
set_cpu_cap(c, X86_FEATURE_SYSENTER32);
#endif
-
- clear_sched_clock_stable();
}
static void init_centaur(struct cpuinfo_x86 *c)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index b11b38c..58094a1 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -88,7 +88,6 @@
strcpy(c->x86_model_id, "386");
}
#endif
- clear_sched_clock_stable();
}
static const struct cpu_dev default_cpu = {
@@ -1077,8 +1076,6 @@
*/
if (this_cpu->c_init)
this_cpu->c_init(c);
- else
- clear_sched_clock_stable();
/* Disable the PN if appropriate */
squash_the_stupid_serial_number(c);
diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c
index 0a3bc19..a70fd61 100644
--- a/arch/x86/kernel/cpu/cyrix.c
+++ b/arch/x86/kernel/cpu/cyrix.c
@@ -185,7 +185,6 @@
set_cpu_cap(c, X86_FEATURE_CYRIX_ARR);
break;
}
- clear_sched_clock_stable();
}
static void init_cyrix(struct cpuinfo_x86 *c)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index fe0a615..0631977 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -162,10 +162,6 @@
if (c->x86_power & (1 << 8)) {
set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);
- if (check_tsc_unstable())
- clear_sched_clock_stable();
- } else {
- clear_sched_clock_stable();
}
/* Penwell and Cloverview have the TSC which doesn't sleep on S3 */
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 0bbe0f3..c05509d 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -28,7 +28,6 @@
#include <linux/sched/signal.h>
#include <linux/sched/task.h>
#include <linux/slab.h>
-#include <linux/cpu.h>
#include <linux/task_work.h>
#include <uapi/linux/magic.h>
diff --git a/arch/x86/kernel/cpu/transmeta.c b/arch/x86/kernel/cpu/transmeta.c
index 8457b49..d77d07a 100644
--- a/arch/x86/kernel/cpu/transmeta.c
+++ b/arch/x86/kernel/cpu/transmeta.c
@@ -16,8 +16,6 @@
if (xlvl >= 0x80860001)
c->x86_capability[CPUID_8086_0001_EDX] = cpuid_edx(0x80860001);
}
-
- clear_sched_clock_stable();
}
static void init_transmeta(struct cpuinfo_x86 *c)
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
index 891f4da..22403a2 100644
--- a/arch/x86/kernel/cpu/vmware.c
+++ b/arch/x86/kernel/cpu/vmware.c
@@ -30,7 +30,6 @@
#include <asm/hypervisor.h>
#include <asm/timer.h>
#include <asm/apic.h>
-#include <asm/timer.h>
#undef pr_fmt
#define pr_fmt(fmt) "vmware: " fmt
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 8639bb2..8f3d9cf 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -535,7 +535,7 @@
{
int enable_irqs = irqs_disabled();
- /* We may be called with interrupts disbled (on bootup). */
+ /* We may be called with interrupts disabled (on bootup). */
if (enable_irqs)
local_irq_enable();
on_each_cpu(do_sync_core, NULL, 1);
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index dc6ba5b..89ff7af 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -354,7 +354,7 @@
irq_domain_deactivate_irq(irq_get_irq_data(hdev->irq));
irq_domain_activate_irq(irq_get_irq_data(hdev->irq));
- disable_irq(hdev->irq);
+ disable_hardirq(hdev->irq);
irq_set_affinity(hdev->irq, cpumask_of(hdev->cpu));
enable_irq(hdev->irq);
}
diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
index bdb83e4..38b6458 100644
--- a/arch/x86/kernel/kdebugfs.c
+++ b/arch/x86/kernel/kdebugfs.c
@@ -167,7 +167,7 @@
struct dentry *dbp, *version, *data;
int error = -ENOMEM;
- dbp = debugfs_create_dir("boot_params", NULL);
+ dbp = debugfs_create_dir("boot_params", arch_debugfs_dir);
if (!dbp)
return -ENOMEM;
diff --git a/arch/x86/kernel/kprobes/common.h b/arch/x86/kernel/kprobes/common.h
index c6ee63f..d688826 100644
--- a/arch/x86/kernel/kprobes/common.h
+++ b/arch/x86/kernel/kprobes/common.h
@@ -67,7 +67,7 @@
#endif
/* Ensure if the instruction can be boostable */
-extern int can_boost(kprobe_opcode_t *instruction);
+extern int can_boost(kprobe_opcode_t *instruction, void *addr);
/* Recover instruction if given address is probed */
extern unsigned long recover_probed_instruction(kprobe_opcode_t *buf,
unsigned long addr);
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 6384eb7..993fa4f 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -167,12 +167,12 @@
* Returns non-zero if opcode is boostable.
* RIP relative instructions are adjusted at copying time in 64 bits mode
*/
-int can_boost(kprobe_opcode_t *opcodes)
+int can_boost(kprobe_opcode_t *opcodes, void *addr)
{
kprobe_opcode_t opcode;
kprobe_opcode_t *orig_opcodes = opcodes;
- if (search_exception_tables((unsigned long)opcodes))
+ if (search_exception_tables((unsigned long)addr))
return 0; /* Page fault may occur on this address. */
retry:
@@ -417,7 +417,7 @@
* __copy_instruction can modify the displacement of the instruction,
* but it doesn't affect boostable check.
*/
- if (can_boost(p->ainsn.insn))
+ if (can_boost(p->ainsn.insn, p->addr))
p->ainsn.boostable = 0;
else
p->ainsn.boostable = -1;
diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
index 3d1bee9..3e7c6e5 100644
--- a/arch/x86/kernel/kprobes/opt.c
+++ b/arch/x86/kernel/kprobes/opt.c
@@ -178,7 +178,7 @@
while (len < RELATIVEJUMP_SIZE) {
ret = __copy_instruction(dest + len, src + len);
- if (!ret || !can_boost(dest + len))
+ if (!ret || !can_boost(dest + len, src + len))
return -EINVAL;
len += ret;
}
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index e244c19..4194d6f 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -223,6 +223,22 @@
DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
},
},
+ { /* Handle problems with rebooting on ASUS EeeBook X205TA */
+ .callback = set_acpi_reboot,
+ .ident = "ASUS EeeBook X205TA",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X205TAW"),
+ },
+ },
+ { /* Handle problems with rebooting on ASUS EeeBook X205TAW */
+ .callback = set_acpi_reboot,
+ .ident = "ASUS EeeBook X205TAW",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X205TAW"),
+ },
+ },
/* Certec */
{ /* Handle problems with rebooting on Certec BPC600 */
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 46bcda4..4f7a983 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -327,9 +327,16 @@
{
return paravirt_sched_clock();
}
+
+static inline bool using_native_sched_clock(void)
+{
+ return pv_time_ops.sched_clock == native_sched_clock;
+}
#else
unsigned long long
sched_clock(void) __attribute__((alias("native_sched_clock")));
+
+static inline bool using_native_sched_clock(void) { return true; }
#endif
int check_tsc_unstable(void)
@@ -1112,8 +1119,10 @@
{
if (tsc_unstable)
return;
+
tsc_unstable = 1;
- clear_sched_clock_stable();
+ if (using_native_sched_clock())
+ clear_sched_clock_stable();
disable_sched_clock_irqtime();
pr_info("Marking TSC unstable due to clocksource watchdog\n");
}
@@ -1135,18 +1144,20 @@
void mark_tsc_unstable(char *reason)
{
- if (!tsc_unstable) {
- tsc_unstable = 1;
+ if (tsc_unstable)
+ return;
+
+ tsc_unstable = 1;
+ if (using_native_sched_clock())
clear_sched_clock_stable();
- disable_sched_clock_irqtime();
- pr_info("Marking TSC unstable due to %s\n", reason);
- /* Change only the rating, when not registered */
- if (clocksource_tsc.mult)
- clocksource_mark_unstable(&clocksource_tsc);
- else {
- clocksource_tsc.flags |= CLOCK_SOURCE_UNSTABLE;
- clocksource_tsc.rating = 0;
- }
+ disable_sched_clock_irqtime();
+ pr_info("Marking TSC unstable due to %s\n", reason);
+ /* Change only the rating, when not registered */
+ if (clocksource_tsc.mult) {
+ clocksource_mark_unstable(&clocksource_tsc);
+ } else {
+ clocksource_tsc.flags |= CLOCK_SOURCE_UNSTABLE;
+ clocksource_tsc.rating = 0;
}
}
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index 99c7805..1f3b6ef 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -106,32 +106,35 @@
unsigned long end, int write, struct page **pages, int *nr)
{
struct dev_pagemap *pgmap = NULL;
- int nr_start = *nr;
- pte_t *ptep;
+ int nr_start = *nr, ret = 0;
+ pte_t *ptep, *ptem;
- ptep = pte_offset_map(&pmd, addr);
+ /*
+ * Keep the original mapped PTE value (ptem) around since we
+ * might increment ptep off the end of the page when finishing
+ * our loop iteration.
+ */
+ ptem = ptep = pte_offset_map(&pmd, addr);
do {
pte_t pte = gup_get_pte(ptep);
struct page *page;
/* Similar to the PMD case, NUMA hinting must take slow path */
- if (pte_protnone(pte)) {
- pte_unmap(ptep);
- return 0;
- }
+ if (pte_protnone(pte))
+ break;
+
+ if (!pte_allows_gup(pte_val(pte), write))
+ break;
if (pte_devmap(pte)) {
pgmap = get_dev_pagemap(pte_pfn(pte), pgmap);
if (unlikely(!pgmap)) {
undo_dev_pagemap(nr, nr_start, pages);
- pte_unmap(ptep);
- return 0;
+ break;
}
- } else if (!pte_allows_gup(pte_val(pte), write) ||
- pte_special(pte)) {
- pte_unmap(ptep);
- return 0;
- }
+ } else if (pte_special(pte))
+ break;
+
VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
page = pte_page(pte);
get_page(page);
@@ -141,9 +144,11 @@
(*nr)++;
} while (ptep++, addr += PAGE_SIZE, addr != end);
- pte_unmap(ptep - 1);
+ if (addr == end)
+ ret = 1;
+ pte_unmap(ptem);
- return 1;
+ return ret;
}
static inline void get_head_page_multiple(struct page *page, int nr)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 0cb52ae..190e718 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -735,6 +735,15 @@
pcibios_disable_irq(dev);
}
+#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
+void pcibios_release_device(struct pci_dev *dev)
+{
+ if (atomic_dec_return(&dev->enable_cnt) >= 0)
+ pcibios_disable_device(dev);
+
+}
+#endif
+
int pci_ext_cfg_avail(void)
{
if (raw_pci_ext_ops)
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index e1fb269..292ab03 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -234,23 +234,14 @@
return 1;
for_each_pci_msi_entry(msidesc, dev) {
- __pci_read_msi_msg(msidesc, &msg);
- pirq = MSI_ADDR_EXT_DEST_ID(msg.address_hi) |
- ((msg.address_lo >> MSI_ADDR_DEST_ID_SHIFT) & 0xff);
- if (msg.data != XEN_PIRQ_MSI_DATA ||
- xen_irq_from_pirq(pirq) < 0) {
- pirq = xen_allocate_pirq_msi(dev, msidesc);
- if (pirq < 0) {
- irq = -ENODEV;
- goto error;
- }
- xen_msi_compose_msg(dev, pirq, &msg);
- __pci_write_msi_msg(msidesc, &msg);
- dev_dbg(&dev->dev, "xen: msi bound to pirq=%d\n", pirq);
- } else {
- dev_dbg(&dev->dev,
- "xen: msi already bound to pirq=%d\n", pirq);
+ pirq = xen_allocate_pirq_msi(dev, msidesc);
+ if (pirq < 0) {
+ irq = -ENODEV;
+ goto error;
}
+ xen_msi_compose_msg(dev, pirq, &msg);
+ __pci_write_msi_msg(msidesc, &msg);
+ dev_dbg(&dev->dev, "xen: msi bound to pirq=%d\n", pirq);
irq = xen_bind_pirq_msi_to_irq(dev, msidesc, pirq,
(type == PCI_CAP_ID_MSI) ? nvec : 1,
(type == PCI_CAP_ID_MSIX) ?
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 766d4d3..f25982c 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -1847,7 +1847,6 @@
ops.write_payload_first(pnode, first);
ops.write_payload_last(pnode, last);
- ops.write_g_sw_ack(pnode, 0xffffUL);
/* in effect, all msg_type's are set to MSG_NOOP */
memset(pqp, 0, sizeof(struct bau_pq_entry) * DEST_Q_SIZE);
diff --git a/arch/x86/purgatory/purgatory.c b/arch/x86/purgatory/purgatory.c
index 25e068b..b6d5c89 100644
--- a/arch/x86/purgatory/purgatory.c
+++ b/arch/x86/purgatory/purgatory.c
@@ -11,6 +11,7 @@
*/
#include "sha256.h"
+#include "purgatory.h"
#include "../boot/string.h"
struct sha_region {
@@ -18,11 +19,11 @@
unsigned long len;
};
-unsigned long backup_dest = 0;
-unsigned long backup_src = 0;
-unsigned long backup_sz = 0;
+static unsigned long backup_dest;
+static unsigned long backup_src;
+static unsigned long backup_sz;
-u8 sha256_digest[SHA256_DIGEST_SIZE] = { 0 };
+static u8 sha256_digest[SHA256_DIGEST_SIZE] = { 0 };
struct sha_region sha_regions[16] = {};
@@ -39,7 +40,7 @@
return 0;
}
-int verify_sha256_digest(void)
+static int verify_sha256_digest(void)
{
struct sha_region *ptr, *end;
u8 digest[SHA256_DIGEST_SIZE];
diff --git a/arch/x86/purgatory/purgatory.h b/arch/x86/purgatory/purgatory.h
new file mode 100644
index 0000000..e2e365a
--- /dev/null
+++ b/arch/x86/purgatory/purgatory.h
@@ -0,0 +1,8 @@
+#ifndef PURGATORY_H
+#define PURGATORY_H
+
+#ifndef __ASSEMBLY__
+extern void purgatory(void);
+#endif /* __ASSEMBLY__ */
+
+#endif /* PURGATORY_H */
diff --git a/arch/x86/purgatory/setup-x86_64.S b/arch/x86/purgatory/setup-x86_64.S
index fe3c91b..f90e9df 100644
--- a/arch/x86/purgatory/setup-x86_64.S
+++ b/arch/x86/purgatory/setup-x86_64.S
@@ -9,6 +9,7 @@
* This source code is licensed under the GNU General Public License,
* Version 2. See the file COPYING for more details.
*/
+#include "purgatory.h"
.text
.globl purgatory_start
diff --git a/arch/xtensa/include/asm/pgtable.h b/arch/xtensa/include/asm/pgtable.h
index 8aa0e0d..30dd5b2 100644
--- a/arch/xtensa/include/asm/pgtable.h
+++ b/arch/xtensa/include/asm/pgtable.h
@@ -11,6 +11,7 @@
#ifndef _XTENSA_PGTABLE_H
#define _XTENSA_PGTABLE_H
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#include <asm/page.h>
#include <asm/kmem_layout.h>
diff --git a/block/blk-core.c b/block/blk-core.c
index 1086dac..0eeb99e 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -578,8 +578,6 @@
q->queue_lock = &q->__queue_lock;
spin_unlock_irq(lock);
- put_disk_devt(q->disk_devt);
-
/* @q is and will stay empty, shutdown and put */
blk_put_queue(q);
}
@@ -2017,17 +2015,34 @@
struct request_queue *q = bdev_get_queue(bio->bi_bdev);
if (likely(blk_queue_enter(q, false) == 0)) {
+ struct bio_list hold;
+ struct bio_list lower, same;
+
+ /* Create a fresh bio_list for all subordinate requests */
+ hold = bio_list_on_stack;
+ bio_list_init(&bio_list_on_stack);
ret = q->make_request_fn(q, bio);
blk_queue_exit(q);
- bio = bio_list_pop(current->bio_list);
+ /* sort new bios into those for a lower level
+ * and those for the same level
+ */
+ bio_list_init(&lower);
+ bio_list_init(&same);
+ while ((bio = bio_list_pop(&bio_list_on_stack)) != NULL)
+ if (q == bdev_get_queue(bio->bi_bdev))
+ bio_list_add(&same, bio);
+ else
+ bio_list_add(&lower, bio);
+ /* now assemble so we handle the lowest level first */
+ bio_list_merge(&bio_list_on_stack, &lower);
+ bio_list_merge(&bio_list_on_stack, &same);
+ bio_list_merge(&bio_list_on_stack, &hold);
} else {
- struct bio *bio_next = bio_list_pop(current->bio_list);
-
bio_io_error(bio);
- bio = bio_next;
}
+ bio = bio_list_pop(current->bio_list);
} while (bio);
current->bio_list = NULL; /* deactivate */
diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c
index 295e696..d745ab8 100644
--- a/block/blk-mq-sysfs.c
+++ b/block/blk-mq-sysfs.c
@@ -17,6 +17,15 @@
{
}
+static void blk_mq_hw_sysfs_release(struct kobject *kobj)
+{
+ struct blk_mq_hw_ctx *hctx = container_of(kobj, struct blk_mq_hw_ctx,
+ kobj);
+ free_cpumask_var(hctx->cpumask);
+ kfree(hctx->ctxs);
+ kfree(hctx);
+}
+
struct blk_mq_ctx_sysfs_entry {
struct attribute attr;
ssize_t (*show)(struct blk_mq_ctx *, char *);
@@ -200,7 +209,7 @@
static struct kobj_type blk_mq_hw_ktype = {
.sysfs_ops = &blk_mq_hw_sysfs_ops,
.default_attrs = default_hw_ctx_attrs,
- .release = blk_mq_sysfs_release,
+ .release = blk_mq_hw_sysfs_release,
};
static void blk_mq_unregister_hctx(struct blk_mq_hw_ctx *hctx)
@@ -242,24 +251,15 @@
static void __blk_mq_unregister_dev(struct device *dev, struct request_queue *q)
{
struct blk_mq_hw_ctx *hctx;
- struct blk_mq_ctx *ctx;
- int i, j;
+ int i;
- queue_for_each_hw_ctx(q, hctx, i) {
+ queue_for_each_hw_ctx(q, hctx, i)
blk_mq_unregister_hctx(hctx);
- hctx_for_each_ctx(hctx, ctx, j)
- kobject_put(&ctx->kobj);
-
- kobject_put(&hctx->kobj);
- }
-
blk_mq_debugfs_unregister_hctxs(q);
kobject_uevent(&q->mq_kobj, KOBJ_REMOVE);
kobject_del(&q->mq_kobj);
- kobject_put(&q->mq_kobj);
-
kobject_put(&dev->kobj);
q->mq_sysfs_init_done = false;
@@ -277,7 +277,19 @@
kobject_init(&hctx->kobj, &blk_mq_hw_ktype);
}
-static void blk_mq_sysfs_init(struct request_queue *q)
+void blk_mq_sysfs_deinit(struct request_queue *q)
+{
+ struct blk_mq_ctx *ctx;
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+ ctx = per_cpu_ptr(q->queue_ctx, cpu);
+ kobject_put(&ctx->kobj);
+ }
+ kobject_put(&q->mq_kobj);
+}
+
+void blk_mq_sysfs_init(struct request_queue *q)
{
struct blk_mq_ctx *ctx;
int cpu;
@@ -297,8 +309,6 @@
blk_mq_disable_hotplug();
- blk_mq_sysfs_init(q);
-
ret = kobject_add(&q->mq_kobj, kobject_get(&dev->kobj), "%s", "mq");
if (ret < 0)
goto out;
diff --git a/block/blk-mq.c b/block/blk-mq.c
index b2fd175..159187a 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1955,16 +1955,6 @@
}
}
-static void blk_mq_free_hw_queues(struct request_queue *q,
- struct blk_mq_tag_set *set)
-{
- struct blk_mq_hw_ctx *hctx;
- unsigned int i;
-
- queue_for_each_hw_ctx(q, hctx, i)
- free_cpumask_var(hctx->cpumask);
-}
-
static int blk_mq_init_hctx(struct request_queue *q,
struct blk_mq_tag_set *set,
struct blk_mq_hw_ctx *hctx, unsigned hctx_idx)
@@ -2045,7 +2035,6 @@
struct blk_mq_ctx *__ctx = per_cpu_ptr(q->queue_ctx, i);
struct blk_mq_hw_ctx *hctx;
- memset(__ctx, 0, sizeof(*__ctx));
__ctx->cpu = i;
spin_lock_init(&__ctx->lock);
INIT_LIST_HEAD(&__ctx->rq_list);
@@ -2257,15 +2246,19 @@
queue_for_each_hw_ctx(q, hctx, i) {
if (!hctx)
continue;
- kfree(hctx->ctxs);
- kfree(hctx);
+ kobject_put(&hctx->kobj);
}
q->mq_map = NULL;
kfree(q->queue_hw_ctx);
- /* ctx kobj stays in queue_ctx */
+ /*
+ * release .mq_kobj and sw queue's kobject now because
+ * both share lifetime with request queue.
+ */
+ blk_mq_sysfs_deinit(q);
+
free_percpu(q->queue_ctx);
}
@@ -2330,10 +2323,7 @@
if (hctx->tags)
blk_mq_free_map_and_requests(set, j);
blk_mq_exit_hctx(q, set, hctx, j);
- free_cpumask_var(hctx->cpumask);
kobject_put(&hctx->kobj);
- kfree(hctx->ctxs);
- kfree(hctx);
hctxs[j] = NULL;
}
@@ -2352,6 +2342,9 @@
if (!q->queue_ctx)
goto err_exit;
+ /* init q->mq_kobj and sw queues' kobjects */
+ blk_mq_sysfs_init(q);
+
q->queue_hw_ctx = kzalloc_node(nr_cpu_ids * sizeof(*(q->queue_hw_ctx)),
GFP_KERNEL, set->numa_node);
if (!q->queue_hw_ctx)
@@ -2442,7 +2435,6 @@
blk_mq_del_queue_tag_set(q);
blk_mq_exit_hw_queues(q, set, set->nr_hw_queues);
- blk_mq_free_hw_queues(q, set);
}
/* Basically redo blk_mq_init_queue with queue frozen */
diff --git a/block/blk-mq.h b/block/blk-mq.h
index 088ced0..b79f9a7 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -77,6 +77,8 @@
/*
* sysfs helpers
*/
+extern void blk_mq_sysfs_init(struct request_queue *q);
+extern void blk_mq_sysfs_deinit(struct request_queue *q);
extern int blk_mq_sysfs_register(struct request_queue *q);
extern void blk_mq_sysfs_unregister(struct request_queue *q);
extern void blk_mq_hctx_kobj_init(struct blk_mq_hw_ctx *hctx);
diff --git a/block/genhd.c b/block/genhd.c
index b26a5ea..a9c516a 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -572,20 +572,6 @@
disk_part_iter_exit(&piter);
}
-void put_disk_devt(struct disk_devt *disk_devt)
-{
- if (disk_devt && atomic_dec_and_test(&disk_devt->count))
- disk_devt->release(disk_devt);
-}
-EXPORT_SYMBOL(put_disk_devt);
-
-void get_disk_devt(struct disk_devt *disk_devt)
-{
- if (disk_devt)
- atomic_inc(&disk_devt->count);
-}
-EXPORT_SYMBOL(get_disk_devt);
-
/**
* device_add_disk - add partitioning information to kernel list
* @parent: parent device for the disk
@@ -626,13 +612,6 @@
disk_alloc_events(disk);
- /*
- * Take a reference on the devt and assign it to queue since it
- * must not be reallocated while the bdi is registered
- */
- disk->queue->disk_devt = disk->disk_devt;
- get_disk_devt(disk->disk_devt);
-
/* Register BDI before referencing it from bdev */
bdi = disk->queue->backing_dev_info;
bdi_register_owner(bdi, disk_to_dev(disk));
@@ -681,12 +660,16 @@
disk->flags &= ~GENHD_FL_UP;
sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi");
- /*
- * Unregister bdi before releasing device numbers (as they can get
- * reused and we'd get clashes in sysfs).
- */
- bdi_unregister(disk->queue->backing_dev_info);
- blk_unregister_queue(disk);
+ if (disk->queue) {
+ /*
+ * Unregister bdi before releasing device numbers (as they can
+ * get reused and we'd get clashes in sysfs).
+ */
+ bdi_unregister(disk->queue->backing_dev_info);
+ blk_unregister_queue(disk);
+ } else {
+ WARN_ON(1);
+ }
blk_unregister_region(disk_devt(disk), disk->minors);
part_stat_set_all(&disk->part0, 0);
diff --git a/block/sed-opal.c b/block/sed-opal.c
index 1e18dca..14035f8 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -1023,7 +1023,6 @@
static int gen_key(struct opal_dev *dev, void *data)
{
- const u8 *method;
u8 uid[OPAL_UID_LENGTH];
int err = 0;
@@ -1031,7 +1030,6 @@
set_comid(dev, dev->comid);
memcpy(uid, dev->prev_data, min(sizeof(uid), dev->prev_d_len));
- method = opalmethod[OPAL_GENKEY];
kfree(dev->prev_data);
dev->prev_data = NULL;
@@ -1669,7 +1667,6 @@
static int lock_unlock_locking_range(struct opal_dev *dev, void *data)
{
u8 lr_buffer[OPAL_UID_LENGTH];
- const u8 *method;
struct opal_lock_unlock *lkul = data;
u8 read_locked = 1, write_locked = 1;
int err = 0;
@@ -1677,7 +1674,6 @@
clear_opal_cmd(dev);
set_comid(dev, dev->comid);
- method = opalmethod[OPAL_SET];
if (build_locking_range(lr_buffer, sizeof(lr_buffer),
lkul->session.opal_key.lr) < 0)
return -ERANGE;
@@ -1733,14 +1729,12 @@
{
u8 lr_buffer[OPAL_UID_LENGTH];
u8 read_locked = 1, write_locked = 1;
- const u8 *method;
struct opal_lock_unlock *lkul = data;
int ret;
clear_opal_cmd(dev);
set_comid(dev, dev->comid);
- method = opalmethod[OPAL_SET];
if (build_locking_range(lr_buffer, sizeof(lr_buffer),
lkul->session.opal_key.lr) < 0)
return -ERANGE;
@@ -2133,7 +2127,7 @@
pr_err("Locking state was not RO or RW\n");
return -EINVAL;
}
- if (lk_unlk->session.who < OPAL_USER1 &&
+ if (lk_unlk->session.who < OPAL_USER1 ||
lk_unlk->session.who > OPAL_USER9) {
pr_err("Authority was not within the range of users: %d\n",
lk_unlk->session.who);
@@ -2316,7 +2310,7 @@
int ret;
/* We can't activate Admin1 it's active as manufactured */
- if (opal_session->who < OPAL_USER1 &&
+ if (opal_session->who < OPAL_USER1 ||
opal_session->who > OPAL_USER9) {
pr_err("Who was not a valid user: %d\n", opal_session->who);
return -EINVAL;
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 219b90b..f159001 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -41,8 +41,10 @@
void acpi_container_init(void);
void acpi_memory_hotplug_init(void);
#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
+void pci_ioapic_remove(struct acpi_pci_root *root);
int acpi_ioapic_remove(struct acpi_pci_root *root);
#else
+static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
#endif
#ifdef CONFIG_ACPI_DOCK
diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c
index 6d7ce6e..1120dfd6 100644
--- a/drivers/acpi/ioapic.c
+++ b/drivers/acpi/ioapic.c
@@ -206,6 +206,23 @@
return ACPI_SUCCESS(status) && ACPI_SUCCESS(retval) ? 0 : -ENODEV;
}
+void pci_ioapic_remove(struct acpi_pci_root *root)
+{
+ struct acpi_pci_ioapic *ioapic, *tmp;
+
+ mutex_lock(&ioapic_list_lock);
+ list_for_each_entry_safe(ioapic, tmp, &ioapic_list, list) {
+ if (root->device->handle != ioapic->root_handle)
+ continue;
+ if (ioapic->pdev) {
+ pci_release_region(ioapic->pdev, 0);
+ pci_disable_device(ioapic->pdev);
+ pci_dev_put(ioapic->pdev);
+ }
+ }
+ mutex_unlock(&ioapic_list_lock);
+}
+
int acpi_ioapic_remove(struct acpi_pci_root *root)
{
int retval = 0;
@@ -215,15 +232,8 @@
list_for_each_entry_safe(ioapic, tmp, &ioapic_list, list) {
if (root->device->handle != ioapic->root_handle)
continue;
-
if (acpi_unregister_ioapic(ioapic->handle, ioapic->gsi_base))
retval = -EBUSY;
-
- if (ioapic->pdev) {
- pci_release_region(ioapic->pdev, 0);
- pci_disable_device(ioapic->pdev);
- pci_dev_put(ioapic->pdev);
- }
if (ioapic->res.flags && ioapic->res.parent)
release_resource(&ioapic->res);
list_del(&ioapic->list);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index bf601d4..919be0a 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -648,12 +648,12 @@
pci_stop_root_bus(root->bus);
- WARN_ON(acpi_ioapic_remove(root));
-
+ pci_ioapic_remove(root);
device_set_run_wake(root->bus->bridge, false);
pci_acpi_remove_bus_pm_notifier(device);
pci_remove_root_bus(root->bus);
+ WARN_ON(acpi_ioapic_remove(root));
dmar_device_remove(device->handle);
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index 10aed84..939641d 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -50,7 +50,7 @@
the slower the port i/o. In some cases, setting
this to zero will speed up the device. (default -1)
- major You may use this parameter to overide the
+ major You may use this parameter to override the
default major number (46) that this driver
will use. Be sure to change the device
name as well.
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 644ba08..9cfd2e0 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -61,7 +61,7 @@
first drive found.
- major You may use this parameter to overide the
+ major You may use this parameter to override the
default major number (45) that this driver
will use. Be sure to change the device
name as well.
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index ed93e8b..14c5d32 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -59,7 +59,7 @@
the slower the port i/o. In some cases, setting
this to zero will speed up the device. (default -1)
- major You may use this parameter to overide the
+ major You may use this parameter to override the
default major number (47) that this driver
will use. Be sure to change the device
name as well.
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c
index 5db955f..3b5882b 100644
--- a/drivers/block/paride/pg.c
+++ b/drivers/block/paride/pg.c
@@ -84,7 +84,7 @@
the slower the port i/o. In some cases, setting
this to zero will speed up the device. (default -1)
- major You may use this parameter to overide the
+ major You may use this parameter to override the
default major number (97) that this driver
will use. Be sure to change the device
name as well.
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c
index 61fc6824..e815312 100644
--- a/drivers/block/paride/pt.c
+++ b/drivers/block/paride/pt.c
@@ -61,7 +61,7 @@
the slower the port i/o. In some cases, setting
this to zero will speed up the device. (default -1)
- major You may use this parameter to overide the
+ major You may use this parameter to override the
default major number (96) that this driver
will use. Be sure to change the device
name as well.
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 4d68077..517838b 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -120,10 +120,11 @@
/* Feature bits */
-#define RBD_FEATURE_LAYERING (1<<0)
-#define RBD_FEATURE_STRIPINGV2 (1<<1)
-#define RBD_FEATURE_EXCLUSIVE_LOCK (1<<2)
-#define RBD_FEATURE_DATA_POOL (1<<7)
+#define RBD_FEATURE_LAYERING (1ULL<<0)
+#define RBD_FEATURE_STRIPINGV2 (1ULL<<1)
+#define RBD_FEATURE_EXCLUSIVE_LOCK (1ULL<<2)
+#define RBD_FEATURE_DATA_POOL (1ULL<<7)
+
#define RBD_FEATURES_ALL (RBD_FEATURE_LAYERING | \
RBD_FEATURE_STRIPINGV2 | \
RBD_FEATURE_EXCLUSIVE_LOCK | \
@@ -499,16 +500,23 @@
return is_lock_owner;
}
+static ssize_t rbd_supported_features_show(struct bus_type *bus, char *buf)
+{
+ return sprintf(buf, "0x%llx\n", RBD_FEATURES_SUPPORTED);
+}
+
static BUS_ATTR(add, S_IWUSR, NULL, rbd_add);
static BUS_ATTR(remove, S_IWUSR, NULL, rbd_remove);
static BUS_ATTR(add_single_major, S_IWUSR, NULL, rbd_add_single_major);
static BUS_ATTR(remove_single_major, S_IWUSR, NULL, rbd_remove_single_major);
+static BUS_ATTR(supported_features, S_IRUGO, rbd_supported_features_show, NULL);
static struct attribute *rbd_bus_attrs[] = {
&bus_attr_add.attr,
&bus_attr_remove.attr,
&bus_attr_add_single_major.attr,
&bus_attr_remove_single_major.attr,
+ &bus_attr_supported_features.attr,
NULL,
};
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index e27d89a..dceb5ed 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1189,6 +1189,8 @@
blk_queue_io_min(zram->disk->queue, PAGE_SIZE);
blk_queue_io_opt(zram->disk->queue, PAGE_SIZE);
zram->disk->queue->limits.discard_granularity = PAGE_SIZE;
+ zram->disk->queue->limits.max_sectors = SECTORS_PER_PAGE;
+ zram->disk->queue->limits.chunk_sectors = 0;
blk_queue_max_discard_sectors(zram->disk->queue, UINT_MAX);
/*
* zram_bio_discard() will clear all logical blocks if logical block
diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c
index a5b1eb2..e6d0d27 100644
--- a/drivers/char/nwbutton.c
+++ b/drivers/char/nwbutton.c
@@ -6,7 +6,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/interrupt.h>
#include <linux/time.h>
#include <linux/timer.h>
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index a475432..38b9fdf 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2532,4 +2532,5 @@
return 0;
}
+module_param(off, int, 0444);
core_initcall(cpufreq_core_init);
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index b1fbaa3..3d37219 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -377,6 +377,7 @@
intel_pstate_init_limits(limits);
limits->min_perf_pct = 100;
limits->min_perf = int_ext_tofp(1);
+ limits->min_sysfs_pct = 100;
}
static DEFINE_MUTEX(intel_pstate_driver_lock);
@@ -968,11 +969,20 @@
}
static void intel_pstate_update_policies(void)
+ __releases(&intel_pstate_limits_lock)
+ __acquires(&intel_pstate_limits_lock)
{
+ struct perf_limits *saved_limits = limits;
int cpu;
+ mutex_unlock(&intel_pstate_limits_lock);
+
for_each_possible_cpu(cpu)
cpufreq_update_policy(cpu);
+
+ mutex_lock(&intel_pstate_limits_lock);
+
+ limits = saved_limits;
}
/************************** debugfs begin ************************/
@@ -1180,10 +1190,10 @@
limits->no_turbo = clamp_t(int, input, 0, 1);
- mutex_unlock(&intel_pstate_limits_lock);
-
intel_pstate_update_policies();
+ mutex_unlock(&intel_pstate_limits_lock);
+
mutex_unlock(&intel_pstate_driver_lock);
return count;
@@ -1217,10 +1227,10 @@
limits->max_perf_pct);
limits->max_perf = div_ext_fp(limits->max_perf_pct, 100);
- mutex_unlock(&intel_pstate_limits_lock);
-
intel_pstate_update_policies();
+ mutex_unlock(&intel_pstate_limits_lock);
+
mutex_unlock(&intel_pstate_driver_lock);
return count;
@@ -1254,10 +1264,10 @@
limits->min_perf_pct);
limits->min_perf = div_ext_fp(limits->min_perf_pct, 100);
- mutex_unlock(&intel_pstate_limits_lock);
-
intel_pstate_update_policies();
+ mutex_unlock(&intel_pstate_limits_lock);
+
mutex_unlock(&intel_pstate_driver_lock);
return count;
@@ -1874,13 +1884,11 @@
intel_pstate_get_min_max(cpu, &min_perf, &max_perf);
pstate = clamp_t(int, pstate, min_perf, max_perf);
- trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu);
return pstate;
}
static void intel_pstate_update_pstate(struct cpudata *cpu, int pstate)
{
- pstate = intel_pstate_prepare_request(cpu, pstate);
if (pstate == cpu->pstate.current_pstate)
return;
@@ -1900,6 +1908,8 @@
update_turbo_state();
+ target_pstate = intel_pstate_prepare_request(cpu, target_pstate);
+ trace_cpu_frequency(target_pstate * cpu->pstate.scaling, cpu->cpu);
intel_pstate_update_pstate(cpu, target_pstate);
sample = &cpu->sample;
@@ -2132,16 +2142,11 @@
mutex_lock(&intel_pstate_limits_lock);
if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
+ pr_debug("set performance\n");
if (!perf_limits) {
limits = &performance_limits;
perf_limits = limits;
}
- if (policy->max >= policy->cpuinfo.max_freq &&
- !limits->no_turbo) {
- pr_debug("set performance\n");
- intel_pstate_set_performance_limits(perf_limits);
- goto out;
- }
} else {
pr_debug("set powersave\n");
if (!perf_limits) {
@@ -2152,7 +2157,7 @@
}
intel_pstate_update_perf_limits(policy, perf_limits);
- out:
+
if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) {
/*
* NOHZ_FULL CPUs need this as the governor callback may not
@@ -2198,9 +2203,9 @@
unsigned int max_freq, min_freq;
max_freq = policy->cpuinfo.max_freq *
- limits->max_sysfs_pct / 100;
+ perf_limits->max_sysfs_pct / 100;
min_freq = policy->cpuinfo.max_freq *
- limits->min_sysfs_pct / 100;
+ perf_limits->min_sysfs_pct / 100;
cpufreq_verify_within_limits(policy, min_freq, max_freq);
}
@@ -2243,13 +2248,8 @@
cpu = all_cpu_data[policy->cpu];
- /*
- * We need sane value in the cpu->perf_limits, so inherit from global
- * perf_limits limits, which are seeded with values based on the
- * CONFIG_CPU_FREQ_DEFAULT_GOV_*, during boot up.
- */
if (per_cpu_limits)
- memcpy(cpu->perf_limits, limits, sizeof(struct perf_limits));
+ intel_pstate_init_limits(cpu->perf_limits);
policy->min = cpu->pstate.min_pstate * cpu->pstate.scaling;
policy->max = cpu->pstate.turbo_pstate * cpu->pstate.scaling;
@@ -2301,7 +2301,6 @@
static int intel_cpufreq_verify_policy(struct cpufreq_policy *policy)
{
struct cpudata *cpu = all_cpu_data[policy->cpu];
- struct perf_limits *perf_limits = limits;
update_turbo_state();
policy->cpuinfo.max_freq = limits->turbo_disabled ?
@@ -2309,15 +2308,6 @@
cpufreq_verify_within_cpu_limits(policy);
- if (per_cpu_limits)
- perf_limits = cpu->perf_limits;
-
- mutex_lock(&intel_pstate_limits_lock);
-
- intel_pstate_update_perf_limits(policy, perf_limits);
-
- mutex_unlock(&intel_pstate_limits_lock);
-
return 0;
}
@@ -2370,6 +2360,7 @@
wrmsrl_on_cpu(policy->cpu, MSR_IA32_PERF_CTL,
pstate_funcs.get_val(cpu, target_pstate));
}
+ freqs.new = target_pstate * cpu->pstate.scaling;
cpufreq_freq_transition_end(policy, &freqs, false);
return 0;
@@ -2383,8 +2374,9 @@
target_freq = intel_cpufreq_turbo_update(cpu, policy, target_freq);
target_pstate = DIV_ROUND_UP(target_freq, cpu->pstate.scaling);
+ target_pstate = intel_pstate_prepare_request(cpu, target_pstate);
intel_pstate_update_pstate(cpu, target_pstate);
- return target_freq;
+ return target_pstate * cpu->pstate.scaling;
}
static int intel_cpufreq_cpu_init(struct cpufreq_policy *policy)
@@ -2437,8 +2429,11 @@
intel_pstate_init_limits(&powersave_limits);
intel_pstate_set_performance_limits(&performance_limits);
- limits = IS_ENABLED(CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE) ?
- &performance_limits : &powersave_limits;
+ if (IS_ENABLED(CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE) &&
+ intel_pstate_driver == &intel_pstate)
+ limits = &performance_limits;
+ else
+ limits = &powersave_limits;
ret = cpufreq_register_driver(intel_pstate_driver);
if (ret) {
diff --git a/drivers/crypto/ux500/cryp/cryp.c b/drivers/crypto/ux500/cryp/cryp.c
index 43a0c8a..00a16ab 100644
--- a/drivers/crypto/ux500/cryp/cryp.c
+++ b/drivers/crypto/ux500/cryp/cryp.c
@@ -82,7 +82,7 @@
void cryp_flush_inoutfifo(struct cryp_device_data *device_data)
{
/*
- * We always need to disble the hardware before trying to flush the
+ * We always need to disable the hardware before trying to flush the
* FIFO. This is something that isn't written in the design
* specification, but we have been informed by the hardware designers
* that this must be done.
diff --git a/drivers/firmware/efi/arm-runtime.c b/drivers/firmware/efi/arm-runtime.c
index 349dc3e1..974c5a3 100644
--- a/drivers/firmware/efi/arm-runtime.c
+++ b/drivers/firmware/efi/arm-runtime.c
@@ -65,6 +65,7 @@
bool systab_found;
efi_mm.pgd = pgd_alloc(&efi_mm);
+ mm_init_cpumask(&efi_mm);
init_new_context(NULL, &efi_mm);
systab_found = false;
diff --git a/drivers/firmware/efi/libstub/secureboot.c b/drivers/firmware/efi/libstub/secureboot.c
index 6def402..5da36e5 100644
--- a/drivers/firmware/efi/libstub/secureboot.c
+++ b/drivers/firmware/efi/libstub/secureboot.c
@@ -45,6 +45,8 @@
size = sizeof(secboot);
status = get_efi_var(efi_SecureBoot_name, &efi_variable_guid,
NULL, &size, &secboot);
+ if (status == EFI_NOT_FOUND)
+ return efi_secureboot_mode_disabled;
if (status != EFI_SUCCESS)
goto out_efi_err;
@@ -78,7 +80,5 @@
out_efi_err:
pr_efi_err(sys_table_arg, "Could not determine UEFI Secure Boot status.\n");
- if (status == EFI_NOT_FOUND)
- return efi_secureboot_mode_disabled;
return efi_secureboot_mode_unknown;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 6abb238..4120b35 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2094,8 +2094,11 @@
}
r = amdgpu_late_init(adev);
- if (r)
+ if (r) {
+ if (fbcon)
+ console_unlock();
return r;
+ }
/* pin cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 75fc376..f7adbac 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -59,9 +59,10 @@
* - 3.7.0 - Add support for VCE clock list packet
* - 3.8.0 - Add support raster config init in the kernel
* - 3.9.0 - Add support for memory query info about VRAM and GTT.
+ * - 3.10.0 - Add support for new fences ioctl, new gem ioctl flags
*/
#define KMS_DRIVER_MAJOR 3
-#define KMS_DRIVER_MINOR 9
+#define KMS_DRIVER_MINOR 10
#define KMS_DRIVER_PATCHLEVEL 0
int amdgpu_vram_limit = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 51d7594..106cf83 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -202,6 +202,27 @@
bool kernel = false;
int r;
+ /* reject invalid gem flags */
+ if (args->in.domain_flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
+ AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
+ AMDGPU_GEM_CREATE_CPU_GTT_USWC |
+ AMDGPU_GEM_CREATE_VRAM_CLEARED|
+ AMDGPU_GEM_CREATE_SHADOW |
+ AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)) {
+ r = -EINVAL;
+ goto error_unlock;
+ }
+ /* reject invalid gem domains */
+ if (args->in.domains & ~(AMDGPU_GEM_DOMAIN_CPU |
+ AMDGPU_GEM_DOMAIN_GTT |
+ AMDGPU_GEM_DOMAIN_VRAM |
+ AMDGPU_GEM_DOMAIN_GDS |
+ AMDGPU_GEM_DOMAIN_GWS |
+ AMDGPU_GEM_DOMAIN_OA)) {
+ r = -EINVAL;
+ goto error_unlock;
+ }
+
/* create a gem object to contain this object in */
if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS |
AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
index 31375bd..011800f 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
@@ -788,7 +788,7 @@
}
}
- /* disble sdma engine before programing it */
+ /* disable sdma engine before programing it */
sdma_v3_0_ctx_switch_enable(adev, false);
sdma_v3_0_enable(adev, false);
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index c8baab9..ba58f1b 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -148,6 +148,9 @@
/* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
{ "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
+
+ /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
+ { "ETR", 13896, EDID_QUIRK_FORCE_8BPC },
};
/*
diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c
index 4a6a2ed..b7d7721 100644
--- a/drivers/gpu/drm/i915/gvt/cfg_space.c
+++ b/drivers/gpu/drm/i915/gvt/cfg_space.c
@@ -41,6 +41,54 @@
INTEL_GVT_PCI_BAR_MAX,
};
+/* bitmap for writable bits (RW or RW1C bits, but cannot co-exist in one
+ * byte) byte by byte in standard pci configuration space. (not the full
+ * 256 bytes.)
+ */
+static const u8 pci_cfg_space_rw_bmp[PCI_INTERRUPT_LINE + 4] = {
+ [PCI_COMMAND] = 0xff, 0x07,
+ [PCI_STATUS] = 0x00, 0xf9, /* the only one RW1C byte */
+ [PCI_CACHE_LINE_SIZE] = 0xff,
+ [PCI_BASE_ADDRESS_0 ... PCI_CARDBUS_CIS - 1] = 0xff,
+ [PCI_ROM_ADDRESS] = 0x01, 0xf8, 0xff, 0xff,
+ [PCI_INTERRUPT_LINE] = 0xff,
+};
+
+/**
+ * vgpu_pci_cfg_mem_write - write virtual cfg space memory
+ *
+ * Use this function to write virtual cfg space memory.
+ * For standard cfg space, only RW bits can be changed,
+ * and we emulates the RW1C behavior of PCI_STATUS register.
+ */
+static void vgpu_pci_cfg_mem_write(struct intel_vgpu *vgpu, unsigned int off,
+ u8 *src, unsigned int bytes)
+{
+ u8 *cfg_base = vgpu_cfg_space(vgpu);
+ u8 mask, new, old;
+ int i = 0;
+
+ for (; i < bytes && (off + i < sizeof(pci_cfg_space_rw_bmp)); i++) {
+ mask = pci_cfg_space_rw_bmp[off + i];
+ old = cfg_base[off + i];
+ new = src[i] & mask;
+
+ /**
+ * The PCI_STATUS high byte has RW1C bits, here
+ * emulates clear by writing 1 for these bits.
+ * Writing a 0b to RW1C bits has no effect.
+ */
+ if (off + i == PCI_STATUS + 1)
+ new = (~new & old) & mask;
+
+ cfg_base[off + i] = (old & ~mask) | new;
+ }
+
+ /* For other configuration space directly copy as it is. */
+ if (i < bytes)
+ memcpy(cfg_base + off + i, src + i, bytes - i);
+}
+
/**
* intel_vgpu_emulate_cfg_read - emulate vGPU configuration space read
*
@@ -123,7 +171,7 @@
u8 changed = old ^ new;
int ret;
- memcpy(vgpu_cfg_space(vgpu) + offset, p_data, bytes);
+ vgpu_pci_cfg_mem_write(vgpu, offset, p_data, bytes);
if (!(changed & PCI_COMMAND_MEMORY))
return 0;
@@ -237,6 +285,9 @@
{
int ret;
+ if (vgpu->failsafe)
+ return 0;
+
if (WARN_ON(bytes > 4))
return -EINVAL;
@@ -274,10 +325,10 @@
if (ret)
return ret;
- memcpy(vgpu_cfg_space(vgpu) + offset, p_data, bytes);
+ vgpu_pci_cfg_mem_write(vgpu, offset, p_data, bytes);
break;
default:
- memcpy(vgpu_cfg_space(vgpu) + offset, p_data, bytes);
+ vgpu_pci_cfg_mem_write(vgpu, offset, p_data, bytes);
break;
}
return 0;
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index b9c8e24..7ae6e2b 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -668,7 +668,7 @@
if (d_info == NULL)
return;
- gvt_err("opcode=0x%x %s sub_ops:",
+ gvt_dbg_cmd("opcode=0x%x %s sub_ops:",
cmd >> (32 - d_info->op_len), d_info->name);
for (i = 0; i < d_info->nr_sub_op; i++)
@@ -693,23 +693,23 @@
int cnt = 0;
int i;
- gvt_err(" vgpu%d RING%d: ring_start(%08lx) ring_end(%08lx)"
+ gvt_dbg_cmd(" vgpu%d RING%d: ring_start(%08lx) ring_end(%08lx)"
" ring_head(%08lx) ring_tail(%08lx)\n", s->vgpu->id,
s->ring_id, s->ring_start, s->ring_start + s->ring_size,
s->ring_head, s->ring_tail);
- gvt_err(" %s %s ip_gma(%08lx) ",
+ gvt_dbg_cmd(" %s %s ip_gma(%08lx) ",
s->buf_type == RING_BUFFER_INSTRUCTION ?
"RING_BUFFER" : "BATCH_BUFFER",
s->buf_addr_type == GTT_BUFFER ?
"GTT" : "PPGTT", s->ip_gma);
if (s->ip_va == NULL) {
- gvt_err(" ip_va(NULL)");
+ gvt_dbg_cmd(" ip_va(NULL)");
return;
}
- gvt_err(" ip_va=%p: %08x %08x %08x %08x\n",
+ gvt_dbg_cmd(" ip_va=%p: %08x %08x %08x %08x\n",
s->ip_va, cmd_val(s, 0), cmd_val(s, 1),
cmd_val(s, 2), cmd_val(s, 3));
diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
index 6d8fde8..5419ae6 100644
--- a/drivers/gpu/drm/i915/gvt/display.c
+++ b/drivers/gpu/drm/i915/gvt/display.c
@@ -83,44 +83,80 @@
return 0;
}
+static unsigned char virtual_dp_monitor_edid[GVT_EDID_NUM][EDID_SIZE] = {
+ {
+/* EDID with 1024x768 as its resolution */
+ /*Header*/
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
+ /* Vendor & Product Identification */
+ 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17,
+ /* Version & Revision */
+ 0x01, 0x04,
+ /* Basic Display Parameters & Features */
+ 0xa5, 0x34, 0x20, 0x78, 0x23,
+ /* Color Characteristics */
+ 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54,
+ /* Established Timings: maximum resolution is 1024x768 */
+ 0x21, 0x08, 0x00,
+ /* Standard Timings. All invalid */
+ 0x00, 0xc0, 0x00, 0xc0, 0x00, 0x40, 0x00, 0x80, 0x00, 0x00,
+ 0x00, 0x40, 0x00, 0x00, 0x00, 0x01,
+ /* 18 Byte Data Blocks 1: invalid */
+ 0x00, 0x00, 0x80, 0xa0, 0x70, 0xb0,
+ 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a,
+ /* 18 Byte Data Blocks 2: invalid */
+ 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ /* 18 Byte Data Blocks 3: invalid */
+ 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48,
+ 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20,
+ /* 18 Byte Data Blocks 4: invalid */
+ 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30,
+ 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20,
+ /* Extension Block Count */
+ 0x00,
+ /* Checksum */
+ 0xef,
+ },
+ {
/* EDID with 1920x1200 as its resolution */
-static unsigned char virtual_dp_monitor_edid[] = {
- /*Header*/
- 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
- /* Vendor & Product Identification */
- 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17,
- /* Version & Revision */
- 0x01, 0x04,
- /* Basic Display Parameters & Features */
- 0xa5, 0x34, 0x20, 0x78, 0x23,
- /* Color Characteristics */
- 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54,
- /* Established Timings: maximum resolution is 1024x768 */
- 0x21, 0x08, 0x00,
- /*
- * Standard Timings.
- * below new resolutions can be supported:
- * 1920x1080, 1280x720, 1280x960, 1280x1024,
- * 1440x900, 1600x1200, 1680x1050
- */
- 0xd1, 0xc0, 0x81, 0xc0, 0x81, 0x40, 0x81, 0x80, 0x95, 0x00,
- 0xa9, 0x40, 0xb3, 0x00, 0x01, 0x01,
- /* 18 Byte Data Blocks 1: max resolution is 1920x1200 */
- 0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0,
- 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a,
- /* 18 Byte Data Blocks 2: invalid */
- 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a,
- 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
- /* 18 Byte Data Blocks 3: invalid */
- 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48,
- 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20,
- /* 18 Byte Data Blocks 4: invalid */
- 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30,
- 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20,
- /* Extension Block Count */
- 0x00,
- /* Checksum */
- 0x45,
+ /*Header*/
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
+ /* Vendor & Product Identification */
+ 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17,
+ /* Version & Revision */
+ 0x01, 0x04,
+ /* Basic Display Parameters & Features */
+ 0xa5, 0x34, 0x20, 0x78, 0x23,
+ /* Color Characteristics */
+ 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54,
+ /* Established Timings: maximum resolution is 1024x768 */
+ 0x21, 0x08, 0x00,
+ /*
+ * Standard Timings.
+ * below new resolutions can be supported:
+ * 1920x1080, 1280x720, 1280x960, 1280x1024,
+ * 1440x900, 1600x1200, 1680x1050
+ */
+ 0xd1, 0xc0, 0x81, 0xc0, 0x81, 0x40, 0x81, 0x80, 0x95, 0x00,
+ 0xa9, 0x40, 0xb3, 0x00, 0x01, 0x01,
+ /* 18 Byte Data Blocks 1: max resolution is 1920x1200 */
+ 0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0,
+ 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a,
+ /* 18 Byte Data Blocks 2: invalid */
+ 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ /* 18 Byte Data Blocks 3: invalid */
+ 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48,
+ 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20,
+ /* 18 Byte Data Blocks 4: invalid */
+ 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30,
+ 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20,
+ /* Extension Block Count */
+ 0x00,
+ /* Checksum */
+ 0x45,
+ },
};
#define DPCD_HEADER_SIZE 0xb
@@ -140,14 +176,20 @@
vgpu_vreg(vgpu, SDEISR) &= ~(SDE_PORTA_HOTPLUG_SPT |
SDE_PORTE_HOTPLUG_SPT);
- if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B))
+ if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) {
vgpu_vreg(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT;
+ vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIB_DETECTED;
+ }
- if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C))
+ if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) {
vgpu_vreg(vgpu, SDEISR) |= SDE_PORTC_HOTPLUG_CPT;
+ vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED;
+ }
- if (intel_vgpu_has_monitor_on_port(vgpu, PORT_D))
+ if (intel_vgpu_has_monitor_on_port(vgpu, PORT_D)) {
vgpu_vreg(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT;
+ vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED;
+ }
if (IS_SKYLAKE(dev_priv) &&
intel_vgpu_has_monitor_on_port(vgpu, PORT_E)) {
@@ -160,6 +202,8 @@
GEN8_PORT_DP_A_HOTPLUG;
else
vgpu_vreg(vgpu, SDEISR) |= SDE_PORTA_HOTPLUG_SPT;
+
+ vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_A)) |= DDI_INIT_DISPLAY_DETECTED;
}
}
@@ -175,10 +219,13 @@
}
static int setup_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num,
- int type)
+ int type, unsigned int resolution)
{
struct intel_vgpu_port *port = intel_vgpu_port(vgpu, port_num);
+ if (WARN_ON(resolution >= GVT_EDID_NUM))
+ return -EINVAL;
+
port->edid = kzalloc(sizeof(*(port->edid)), GFP_KERNEL);
if (!port->edid)
return -ENOMEM;
@@ -189,7 +236,7 @@
return -ENOMEM;
}
- memcpy(port->edid->edid_block, virtual_dp_monitor_edid,
+ memcpy(port->edid->edid_block, virtual_dp_monitor_edid[resolution],
EDID_SIZE);
port->edid->data_valid = true;
@@ -322,16 +369,18 @@
* Zero on success, negative error code if failed.
*
*/
-int intel_vgpu_init_display(struct intel_vgpu *vgpu)
+int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution)
{
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
intel_vgpu_init_i2c_edid(vgpu);
if (IS_SKYLAKE(dev_priv))
- return setup_virtual_dp_monitor(vgpu, PORT_D, GVT_DP_D);
+ return setup_virtual_dp_monitor(vgpu, PORT_D, GVT_DP_D,
+ resolution);
else
- return setup_virtual_dp_monitor(vgpu, PORT_B, GVT_DP_B);
+ return setup_virtual_dp_monitor(vgpu, PORT_B, GVT_DP_B,
+ resolution);
}
/**
diff --git a/drivers/gpu/drm/i915/gvt/display.h b/drivers/gpu/drm/i915/gvt/display.h
index 8b234ea..d73de22 100644
--- a/drivers/gpu/drm/i915/gvt/display.h
+++ b/drivers/gpu/drm/i915/gvt/display.h
@@ -154,10 +154,28 @@
int type;
};
+enum intel_vgpu_edid {
+ GVT_EDID_1024_768,
+ GVT_EDID_1920_1200,
+ GVT_EDID_NUM,
+};
+
+static inline char *vgpu_edid_str(enum intel_vgpu_edid id)
+{
+ switch (id) {
+ case GVT_EDID_1024_768:
+ return "1024x768";
+ case GVT_EDID_1920_1200:
+ return "1920x1200";
+ default:
+ return "";
+ }
+}
+
void intel_gvt_emulate_vblank(struct intel_gvt *gvt);
void intel_gvt_check_vblank_emulation(struct intel_gvt *gvt);
-int intel_vgpu_init_display(struct intel_vgpu *vgpu);
+int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution);
void intel_vgpu_reset_display(struct intel_vgpu *vgpu);
void intel_vgpu_clean_display(struct intel_vgpu *vgpu);
diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c
index 1cb29b2..933a7c2 100644
--- a/drivers/gpu/drm/i915/gvt/firmware.c
+++ b/drivers/gpu/drm/i915/gvt/firmware.c
@@ -80,7 +80,7 @@
int ret;
size = sizeof(*h) + info->mmio_size + info->cfg_space_size - 1;
- firmware = vmalloc(size);
+ firmware = vzalloc(size);
if (!firmware)
return -ENOMEM;
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 28c9234..6a5ff23 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -1825,11 +1825,8 @@
gma = g_gtt_index << GTT_PAGE_SHIFT;
/* the VM may configure the whole GM space when ballooning is used */
- if (WARN_ONCE(!vgpu_gmadr_is_valid(vgpu, gma),
- "vgpu%d: found oob ggtt write, offset %x\n",
- vgpu->id, off)) {
+ if (!vgpu_gmadr_is_valid(vgpu, gma))
return 0;
- }
ggtt_get_guest_entry(ggtt_mm, &e, g_gtt_index);
@@ -2015,6 +2012,22 @@
return create_scratch_page_tree(vgpu);
}
+static void intel_vgpu_free_mm(struct intel_vgpu *vgpu, int type)
+{
+ struct list_head *pos, *n;
+ struct intel_vgpu_mm *mm;
+
+ list_for_each_safe(pos, n, &vgpu->gtt.mm_list_head) {
+ mm = container_of(pos, struct intel_vgpu_mm, list);
+ if (mm->type == type) {
+ vgpu->gvt->gtt.mm_free_page_table(mm);
+ list_del(&mm->list);
+ list_del(&mm->lru_list);
+ kfree(mm);
+ }
+ }
+}
+
/**
* intel_vgpu_clean_gtt - clean up per-vGPU graphics memory virulization
* @vgpu: a vGPU
@@ -2027,19 +2040,11 @@
*/
void intel_vgpu_clean_gtt(struct intel_vgpu *vgpu)
{
- struct list_head *pos, *n;
- struct intel_vgpu_mm *mm;
-
ppgtt_free_all_shadow_page(vgpu);
release_scratch_page_tree(vgpu);
- list_for_each_safe(pos, n, &vgpu->gtt.mm_list_head) {
- mm = container_of(pos, struct intel_vgpu_mm, list);
- vgpu->gvt->gtt.mm_free_page_table(mm);
- list_del(&mm->list);
- list_del(&mm->lru_list);
- kfree(mm);
- }
+ intel_vgpu_free_mm(vgpu, INTEL_GVT_MM_PPGTT);
+ intel_vgpu_free_mm(vgpu, INTEL_GVT_MM_GGTT);
}
static void clean_spt_oos(struct intel_gvt *gvt)
@@ -2322,6 +2327,13 @@
int i;
ppgtt_free_all_shadow_page(vgpu);
+
+ /* Shadow pages are only created when there is no page
+ * table tracking data, so remove page tracking data after
+ * removing the shadow pages.
+ */
+ intel_vgpu_free_mm(vgpu, INTEL_GVT_MM_PPGTT);
+
if (!dmlr)
return;
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index e227caf..2379192 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -143,6 +143,8 @@
int id;
unsigned long handle; /* vGPU handle used by hypervisor MPT modules */
bool active;
+ bool pv_notified;
+ bool failsafe;
bool resetting;
void *sched_data;
@@ -203,18 +205,18 @@
};
struct intel_gvt_opregion {
- void __iomem *opregion_va;
+ void *opregion_va;
u32 opregion_pa;
};
#define NR_MAX_INTEL_VGPU_TYPES 20
struct intel_vgpu_type {
char name[16];
- unsigned int max_instance;
unsigned int avail_instance;
unsigned int low_gm_size;
unsigned int high_gm_size;
unsigned int fence;
+ enum intel_vgpu_edid resolution;
};
struct intel_gvt {
@@ -317,6 +319,7 @@
__u64 low_gm_sz; /* in MB */
__u64 high_gm_sz; /* in MB */
__u64 fence_sz;
+ __u64 resolution;
__s32 primary;
__u64 vgpu_id;
};
@@ -449,6 +452,11 @@
};
+enum {
+ GVT_FAILSAFE_UNSUPPORTED_GUEST,
+ GVT_FAILSAFE_INSUFFICIENT_RESOURCE,
+};
+
#include "mpt.h"
#endif
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index 1d45062..8e43395 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -121,6 +121,7 @@
info->size = size;
info->length = (i + 4) < end ? 4 : (end - i);
info->addr_mask = addr_mask;
+ info->ro_mask = ro_mask;
info->device = device;
info->read = read ? read : intel_vgpu_default_mmio_read;
info->write = write ? write : intel_vgpu_default_mmio_write;
@@ -150,15 +151,44 @@
#define fence_num_to_offset(num) \
(num * 8 + i915_mmio_reg_offset(FENCE_REG_GEN6_LO(0)))
+
+static void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason)
+{
+ switch (reason) {
+ case GVT_FAILSAFE_UNSUPPORTED_GUEST:
+ pr_err("Detected your guest driver doesn't support GVT-g.\n");
+ break;
+ case GVT_FAILSAFE_INSUFFICIENT_RESOURCE:
+ pr_err("Graphics resource is not enough for the guest\n");
+ default:
+ break;
+ }
+ pr_err("Now vgpu %d will enter failsafe mode.\n", vgpu->id);
+ vgpu->failsafe = true;
+}
+
static int sanitize_fence_mmio_access(struct intel_vgpu *vgpu,
unsigned int fence_num, void *p_data, unsigned int bytes)
{
if (fence_num >= vgpu_fence_sz(vgpu)) {
- gvt_err("vgpu%d: found oob fence register access\n",
- vgpu->id);
- gvt_err("vgpu%d: total fence num %d access fence num %d\n",
- vgpu->id, vgpu_fence_sz(vgpu), fence_num);
+
+ /* When guest access oob fence regs without access
+ * pv_info first, we treat guest not supporting GVT,
+ * and we will let vgpu enter failsafe mode.
+ */
+ if (!vgpu->pv_notified)
+ enter_failsafe_mode(vgpu,
+ GVT_FAILSAFE_UNSUPPORTED_GUEST);
+
+ if (!vgpu->mmio.disable_warn_untrack) {
+ gvt_err("vgpu%d: found oob fence register access\n",
+ vgpu->id);
+ gvt_err("vgpu%d: total fence %d, access fence %d\n",
+ vgpu->id, vgpu_fence_sz(vgpu),
+ fence_num);
+ }
memset(p_data, 0, bytes);
+ return -EINVAL;
}
return 0;
}
@@ -369,6 +399,74 @@
return 0;
}
+/* ascendingly sorted */
+static i915_reg_t force_nonpriv_white_list[] = {
+ GEN9_CS_DEBUG_MODE1, //_MMIO(0x20ec)
+ GEN9_CTX_PREEMPT_REG,//_MMIO(0x2248)
+ GEN8_CS_CHICKEN1,//_MMIO(0x2580)
+ _MMIO(0x2690),
+ _MMIO(0x2694),
+ _MMIO(0x2698),
+ _MMIO(0x4de0),
+ _MMIO(0x4de4),
+ _MMIO(0x4dfc),
+ GEN7_COMMON_SLICE_CHICKEN1,//_MMIO(0x7010)
+ _MMIO(0x7014),
+ HDC_CHICKEN0,//_MMIO(0x7300)
+ GEN8_HDC_CHICKEN1,//_MMIO(0x7304)
+ _MMIO(0x7700),
+ _MMIO(0x7704),
+ _MMIO(0x7708),
+ _MMIO(0x770c),
+ _MMIO(0xb110),
+ GEN8_L3SQCREG4,//_MMIO(0xb118)
+ _MMIO(0xe100),
+ _MMIO(0xe18c),
+ _MMIO(0xe48c),
+ _MMIO(0xe5f4),
+};
+
+/* a simple bsearch */
+static inline bool in_whitelist(unsigned int reg)
+{
+ int left = 0, right = ARRAY_SIZE(force_nonpriv_white_list);
+ i915_reg_t *array = force_nonpriv_white_list;
+
+ while (left < right) {
+ int mid = (left + right)/2;
+
+ if (reg > array[mid].reg)
+ left = mid + 1;
+ else if (reg < array[mid].reg)
+ right = mid;
+ else
+ return true;
+ }
+ return false;
+}
+
+static int force_nonpriv_write(struct intel_vgpu *vgpu,
+ unsigned int offset, void *p_data, unsigned int bytes)
+{
+ u32 reg_nonpriv = *(u32 *)p_data;
+ int ret = -EINVAL;
+
+ if ((bytes != 4) || ((offset & (bytes - 1)) != 0)) {
+ gvt_err("vgpu(%d) Invalid FORCE_NONPRIV offset %x(%dB)\n",
+ vgpu->id, offset, bytes);
+ return ret;
+ }
+
+ if (in_whitelist(reg_nonpriv)) {
+ ret = intel_vgpu_default_mmio_write(vgpu, offset, p_data,
+ bytes);
+ } else {
+ gvt_err("vgpu(%d) Invalid FORCE_NONPRIV write %x\n",
+ vgpu->id, reg_nonpriv);
+ }
+ return ret;
+}
+
static int ddi_buf_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
void *p_data, unsigned int bytes)
{
@@ -1001,6 +1099,7 @@
if (invalid_read)
gvt_err("invalid pvinfo read: [%x:%x] = %x\n",
offset, bytes, *(u32 *)p_data);
+ vgpu->pv_notified = true;
return 0;
}
@@ -1039,7 +1138,7 @@
char vmid_str[20];
char display_ready_str[20];
- snprintf(display_ready_str, 20, "GVT_DISPLAY_READY=%d\n", ready);
+ snprintf(display_ready_str, 20, "GVT_DISPLAY_READY=%d", ready);
env[0] = display_ready_str;
snprintf(vmid_str, 20, "VMID=%d", vgpu->id);
@@ -1078,6 +1177,9 @@
case _vgtif_reg(execlist_context_descriptor_lo):
case _vgtif_reg(execlist_context_descriptor_hi):
break;
+ case _vgtif_reg(rsv5[0])..._vgtif_reg(rsv5[3]):
+ enter_failsafe_mode(vgpu, GVT_FAILSAFE_INSUFFICIENT_RESOURCE);
+ break;
default:
gvt_err("invalid pvinfo write offset %x bytes %x data %x\n",
offset, bytes, data);
@@ -1203,26 +1305,37 @@
u32 *data0 = &vgpu_vreg(vgpu, GEN6_PCODE_DATA);
switch (cmd) {
- case 0x6:
- /**
- * "Read memory latency" command on gen9.
- * Below memory latency values are read
- * from skylake platform.
- */
- if (!*data0)
- *data0 = 0x1e1a1100;
- else
- *data0 = 0x61514b3d;
+ case GEN9_PCODE_READ_MEM_LATENCY:
+ if (IS_SKYLAKE(vgpu->gvt->dev_priv)) {
+ /**
+ * "Read memory latency" command on gen9.
+ * Below memory latency values are read
+ * from skylake platform.
+ */
+ if (!*data0)
+ *data0 = 0x1e1a1100;
+ else
+ *data0 = 0x61514b3d;
+ }
break;
- case 0x5:
+ case SKL_PCODE_CDCLK_CONTROL:
+ if (IS_SKYLAKE(vgpu->gvt->dev_priv))
+ *data0 = SKL_CDCLK_READY_FOR_CHANGE;
+ break;
+ case GEN6_PCODE_READ_RC6VIDS:
*data0 |= 0x1;
break;
}
gvt_dbg_core("VM(%d) write %x to mailbox, return data0 %x\n",
vgpu->id, value, *data0);
-
- value &= ~(1 << 31);
+ /**
+ * PCODE_READY clear means ready for pcode read/write,
+ * PCODE_ERROR_MASK clear means no error happened. In GVT-g we
+ * always emulate as pcode read/write success and ready for access
+ * anytime, since we don't touch real physical registers here.
+ */
+ value &= ~(GEN6_PCODE_READY | GEN6_PCODE_ERROR_MASK);
return intel_vgpu_default_mmio_write(vgpu, offset, &value, bytes);
}
@@ -1318,6 +1431,17 @@
bool enable_execlist;
write_vreg(vgpu, offset, p_data, bytes);
+
+ /* when PPGTT mode enabled, we will check if guest has called
+ * pvinfo, if not, we will treat this guest as non-gvtg-aware
+ * guest, and stop emulating its cfg space, mmio, gtt, etc.
+ */
+ if (((data & _MASKED_BIT_ENABLE(GFX_PPGTT_ENABLE)) ||
+ (data & _MASKED_BIT_ENABLE(GFX_RUN_LIST_ENABLE)))
+ && !vgpu->pv_notified) {
+ enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST);
+ return 0;
+ }
if ((data & _MASKED_BIT_ENABLE(GFX_RUN_LIST_ENABLE))
|| (data & _MASKED_BIT_DISABLE(GFX_RUN_LIST_ENABLE))) {
enable_execlist = !!(data & GFX_RUN_LIST_ENABLE);
@@ -1400,6 +1524,9 @@
#define MMIO_GM(reg, d, r, w) \
MMIO_F(reg, 4, F_GMADR, 0xFFFFF000, 0, d, r, w)
+#define MMIO_GM_RDR(reg, d, r, w) \
+ MMIO_F(reg, 4, F_GMADR | F_CMD_ACCESS, 0xFFFFF000, 0, d, r, w)
+
#define MMIO_RO(reg, d, f, rm, r, w) \
MMIO_F(reg, 4, F_RO | f, 0, rm, d, r, w)
@@ -1419,6 +1546,9 @@
#define MMIO_RING_GM(prefix, d, r, w) \
MMIO_RING_F(prefix, 4, F_GMADR, 0xFFFF0000, 0, d, r, w)
+#define MMIO_RING_GM_RDR(prefix, d, r, w) \
+ MMIO_RING_F(prefix, 4, F_GMADR | F_CMD_ACCESS, 0xFFFF0000, 0, d, r, w)
+
#define MMIO_RING_RO(prefix, d, f, rm, r, w) \
MMIO_RING_F(prefix, 4, F_RO | f, 0, rm, d, r, w)
@@ -1427,73 +1557,81 @@
struct drm_i915_private *dev_priv = gvt->dev_priv;
int ret;
- MMIO_RING_DFH(RING_IMR, D_ALL, 0, NULL, intel_vgpu_reg_imr_handler);
+ MMIO_RING_DFH(RING_IMR, D_ALL, F_CMD_ACCESS, NULL,
+ intel_vgpu_reg_imr_handler);
MMIO_DFH(SDEIMR, D_ALL, 0, NULL, intel_vgpu_reg_imr_handler);
MMIO_DFH(SDEIER, D_ALL, 0, NULL, intel_vgpu_reg_ier_handler);
MMIO_DFH(SDEIIR, D_ALL, 0, NULL, intel_vgpu_reg_iir_handler);
MMIO_D(SDEISR, D_ALL);
- MMIO_RING_D(RING_HWSTAM, D_ALL);
+ MMIO_RING_DFH(RING_HWSTAM, D_ALL, F_CMD_ACCESS, NULL, NULL);
- MMIO_GM(RENDER_HWS_PGA_GEN7, D_ALL, NULL, NULL);
- MMIO_GM(BSD_HWS_PGA_GEN7, D_ALL, NULL, NULL);
- MMIO_GM(BLT_HWS_PGA_GEN7, D_ALL, NULL, NULL);
- MMIO_GM(VEBOX_HWS_PGA_GEN7, D_ALL, NULL, NULL);
+ MMIO_GM_RDR(RENDER_HWS_PGA_GEN7, D_ALL, NULL, NULL);
+ MMIO_GM_RDR(BSD_HWS_PGA_GEN7, D_ALL, NULL, NULL);
+ MMIO_GM_RDR(BLT_HWS_PGA_GEN7, D_ALL, NULL, NULL);
+ MMIO_GM_RDR(VEBOX_HWS_PGA_GEN7, D_ALL, NULL, NULL);
#define RING_REG(base) (base + 0x28)
- MMIO_RING_D(RING_REG, D_ALL);
+ MMIO_RING_DFH(RING_REG, D_ALL, F_CMD_ACCESS, NULL, NULL);
#undef RING_REG
#define RING_REG(base) (base + 0x134)
- MMIO_RING_D(RING_REG, D_ALL);
+ MMIO_RING_DFH(RING_REG, D_ALL, F_CMD_ACCESS, NULL, NULL);
#undef RING_REG
- MMIO_GM(0x2148, D_ALL, NULL, NULL);
- MMIO_GM(CCID, D_ALL, NULL, NULL);
- MMIO_GM(0x12198, D_ALL, NULL, NULL);
+ MMIO_GM_RDR(0x2148, D_ALL, NULL, NULL);
+ MMIO_GM_RDR(CCID, D_ALL, NULL, NULL);
+ MMIO_GM_RDR(0x12198, D_ALL, NULL, NULL);
MMIO_D(GEN7_CXT_SIZE, D_ALL);
- MMIO_RING_D(RING_TAIL, D_ALL);
- MMIO_RING_D(RING_HEAD, D_ALL);
- MMIO_RING_D(RING_CTL, D_ALL);
- MMIO_RING_D(RING_ACTHD, D_ALL);
- MMIO_RING_GM(RING_START, D_ALL, NULL, NULL);
+ MMIO_RING_DFH(RING_TAIL, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_RING_DFH(RING_HEAD, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_RING_DFH(RING_CTL, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_RING_DFH(RING_ACTHD, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_RING_GM_RDR(RING_START, D_ALL, NULL, NULL);
/* RING MODE */
#define RING_REG(base) (base + 0x29c)
- MMIO_RING_DFH(RING_REG, D_ALL, F_MODE_MASK, NULL, ring_mode_mmio_write);
+ MMIO_RING_DFH(RING_REG, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL,
+ ring_mode_mmio_write);
#undef RING_REG
- MMIO_RING_DFH(RING_MI_MODE, D_ALL, F_MODE_MASK, NULL, NULL);
- MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK, NULL, NULL);
+ MMIO_RING_DFH(RING_MI_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
+ NULL, NULL);
+ MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
+ NULL, NULL);
MMIO_RING_DFH(RING_TIMESTAMP, D_ALL, F_CMD_ACCESS,
ring_timestamp_mmio_read, NULL);
MMIO_RING_DFH(RING_TIMESTAMP_UDW, D_ALL, F_CMD_ACCESS,
ring_timestamp_mmio_read, NULL);
- MMIO_DFH(GEN7_GT_MODE, D_ALL, F_MODE_MASK, NULL, NULL);
- MMIO_DFH(CACHE_MODE_0_GEN7, D_ALL, F_MODE_MASK, NULL, NULL);
+ MMIO_DFH(GEN7_GT_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(CACHE_MODE_0_GEN7, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
+ NULL, NULL);
MMIO_DFH(CACHE_MODE_1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(CACHE_MODE_0, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x2124, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
- MMIO_DFH(0x20dc, D_ALL, F_MODE_MASK, NULL, NULL);
- MMIO_DFH(_3D_CHICKEN3, D_ALL, F_MODE_MASK, NULL, NULL);
- MMIO_DFH(0x2088, D_ALL, F_MODE_MASK, NULL, NULL);
- MMIO_DFH(0x20e4, D_ALL, F_MODE_MASK, NULL, NULL);
- MMIO_DFH(0x2470, D_ALL, F_MODE_MASK, NULL, NULL);
- MMIO_D(GAM_ECOCHK, D_ALL);
- MMIO_DFH(GEN7_COMMON_SLICE_CHICKEN1, D_ALL, F_MODE_MASK, NULL, NULL);
+ MMIO_DFH(0x20dc, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(_3D_CHICKEN3, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x2088, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x20e4, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x2470, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(GAM_ECOCHK, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(GEN7_COMMON_SLICE_CHICKEN1, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
+ NULL, NULL);
MMIO_DFH(COMMON_SLICE_CHICKEN2, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
- MMIO_D(0x9030, D_ALL);
- MMIO_D(0x20a0, D_ALL);
- MMIO_D(0x2420, D_ALL);
- MMIO_D(0x2430, D_ALL);
- MMIO_D(0x2434, D_ALL);
- MMIO_D(0x2438, D_ALL);
- MMIO_D(0x243c, D_ALL);
- MMIO_DFH(0x7018, D_ALL, F_MODE_MASK, NULL, NULL);
+ MMIO_DFH(0x9030, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x20a0, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x2420, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x2430, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x2434, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x2438, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x243c, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x7018, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(HALF_SLICE_CHICKEN3, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
- MMIO_DFH(0xe100, D_ALL, F_MODE_MASK, NULL, NULL);
+ MMIO_DFH(GEN7_HALF_SLICE_CHICKEN1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
/* display */
MMIO_F(0x60220, 0x20, 0, 0, 0, D_ALL, NULL, NULL);
@@ -2022,8 +2160,8 @@
MMIO_D(FORCEWAKE_ACK, D_ALL);
MMIO_D(GEN6_GT_CORE_STATUS, D_ALL);
MMIO_D(GEN6_GT_THREAD_STATUS_REG, D_ALL);
- MMIO_D(GTFIFODBG, D_ALL);
- MMIO_D(GTFIFOCTL, D_ALL);
+ MMIO_DFH(GTFIFODBG, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(GTFIFOCTL, D_ALL, F_CMD_ACCESS, NULL, NULL);
MMIO_DH(FORCEWAKE_MT, D_PRE_SKL, NULL, mul_force_wake_write);
MMIO_DH(FORCEWAKE_ACK_HSW, D_HSW | D_BDW, NULL, NULL);
MMIO_D(ECOBUS, D_ALL);
@@ -2080,7 +2218,7 @@
MMIO_F(0x4f000, 0x90, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_D(GEN6_PCODE_MAILBOX, D_PRE_SKL);
+ MMIO_D(GEN6_PCODE_MAILBOX, D_PRE_BDW);
MMIO_D(GEN6_PCODE_DATA, D_ALL);
MMIO_D(0x13812c, D_ALL);
MMIO_DH(GEN7_ERR_INT, D_ALL, NULL, NULL);
@@ -2159,36 +2297,35 @@
MMIO_D(0x1a054, D_ALL);
MMIO_D(0x44070, D_ALL);
-
- MMIO_D(0x215c, D_HSW_PLUS);
+ MMIO_DFH(0x215c, D_HSW_PLUS, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(0x2178, D_ALL, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(0x217c, D_ALL, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(0x12178, D_ALL, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(0x1217c, D_ALL, F_CMD_ACCESS, NULL, NULL);
- MMIO_F(0x2290, 8, 0, 0, 0, D_HSW_PLUS, NULL, NULL);
- MMIO_D(GEN7_OACONTROL, D_HSW);
+ MMIO_F(0x2290, 8, F_CMD_ACCESS, 0, 0, D_HSW_PLUS, NULL, NULL);
+ MMIO_DFH(GEN7_OACONTROL, D_HSW, F_CMD_ACCESS, NULL, NULL);
MMIO_D(0x2b00, D_BDW_PLUS);
MMIO_D(0x2360, D_BDW_PLUS);
- MMIO_F(0x5200, 32, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(0x5240, 32, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(0x5280, 16, 0, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(0x5200, 32, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(0x5240, 32, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(0x5280, 16, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
MMIO_DFH(0x1c17c, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(0x1c178, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
- MMIO_D(BCS_SWCTRL, D_ALL);
+ MMIO_DFH(BCS_SWCTRL, D_ALL, F_CMD_ACCESS, NULL, NULL);
- MMIO_F(HS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(DS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(IA_VERTICES_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(IA_PRIMITIVES_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(VS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(GS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(GS_PRIMITIVES_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(CL_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(CL_PRIMITIVES_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(PS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
- MMIO_F(PS_DEPTH_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(HS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(DS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(IA_VERTICES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(IA_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(VS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(GS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(GS_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(CL_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(CL_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(PS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
+ MMIO_F(PS_DEPTH_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
MMIO_DH(0x4260, D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler);
MMIO_DH(0x4264, D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler);
MMIO_DH(0x4268, D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler);
@@ -2196,6 +2333,17 @@
MMIO_DH(0x4270, D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler);
MMIO_DFH(0x4094, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(ARB_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_RING_GM_RDR(RING_BBADDR, D_ALL, NULL, NULL);
+ MMIO_DFH(0x2220, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x12220, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x22220, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_RING_DFH(RING_SYNC_1, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_RING_DFH(RING_SYNC_0, D_ALL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x22178, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x1a178, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x1a17c, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x2217c, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
return 0;
}
@@ -2204,7 +2352,7 @@
struct drm_i915_private *dev_priv = gvt->dev_priv;
int ret;
- MMIO_DH(RING_IMR(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL,
+ MMIO_DFH(RING_IMR(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, NULL,
intel_vgpu_reg_imr_handler);
MMIO_DH(GEN8_GT_IMR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler);
@@ -2269,24 +2417,31 @@
MMIO_DH(GEN8_MASTER_IRQ, D_BDW_PLUS, NULL,
intel_vgpu_reg_master_irq_handler);
- MMIO_D(RING_HWSTAM(GEN8_BSD2_RING_BASE), D_BDW_PLUS);
- MMIO_D(0x1c134, D_BDW_PLUS);
+ MMIO_DFH(RING_HWSTAM(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
+ F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x1c134, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
- MMIO_D(RING_TAIL(GEN8_BSD2_RING_BASE), D_BDW_PLUS);
- MMIO_D(RING_HEAD(GEN8_BSD2_RING_BASE), D_BDW_PLUS);
- MMIO_GM(RING_START(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL);
- MMIO_D(RING_CTL(GEN8_BSD2_RING_BASE), D_BDW_PLUS);
- MMIO_D(RING_ACTHD(GEN8_BSD2_RING_BASE), D_BDW_PLUS);
- MMIO_D(RING_ACTHD_UDW(GEN8_BSD2_RING_BASE), D_BDW_PLUS);
- MMIO_DFH(0x1c29c, D_BDW_PLUS, F_MODE_MASK, NULL, ring_mode_mmio_write);
- MMIO_DFH(RING_MI_MODE(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_MODE_MASK,
- NULL, NULL);
- MMIO_DFH(RING_INSTPM(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_MODE_MASK,
- NULL, NULL);
+ MMIO_DFH(RING_TAIL(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS,
+ NULL, NULL);
+ MMIO_DFH(RING_HEAD(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
+ F_CMD_ACCESS, NULL, NULL);
+ MMIO_GM_RDR(RING_START(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL);
+ MMIO_DFH(RING_CTL(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS,
+ NULL, NULL);
+ MMIO_DFH(RING_ACTHD(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
+ F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(RING_ACTHD_UDW(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
+ F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x1c29c, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL,
+ ring_mode_mmio_write);
+ MMIO_DFH(RING_MI_MODE(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
+ F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(RING_INSTPM(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
+ F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(RING_TIMESTAMP(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS,
ring_timestamp_mmio_read, NULL);
- MMIO_RING_D(RING_ACTHD_UDW, D_BDW_PLUS);
+ MMIO_RING_DFH(RING_ACTHD_UDW, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
#define RING_REG(base) (base + 0xd0)
MMIO_RING_F(RING_REG, 4, F_RO, 0,
@@ -2303,13 +2458,16 @@
#undef RING_REG
#define RING_REG(base) (base + 0x234)
- MMIO_RING_F(RING_REG, 8, F_RO, 0, ~0, D_BDW_PLUS, NULL, NULL);
- MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 4, F_RO, 0, ~0LL, D_BDW_PLUS, NULL, NULL);
+ MMIO_RING_F(RING_REG, 8, F_RO | F_CMD_ACCESS, 0, ~0, D_BDW_PLUS,
+ NULL, NULL);
+ MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 4, F_RO | F_CMD_ACCESS, 0,
+ ~0LL, D_BDW_PLUS, NULL, NULL);
#undef RING_REG
#define RING_REG(base) (base + 0x244)
- MMIO_RING_D(RING_REG, D_BDW_PLUS);
- MMIO_D(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS);
+ MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS,
+ NULL, NULL);
#undef RING_REG
#define RING_REG(base) (base + 0x370)
@@ -2331,6 +2489,8 @@
MMIO_D(GEN7_MISCCPCTL, D_BDW_PLUS);
MMIO_D(0x1c054, D_BDW_PLUS);
+ MMIO_DH(GEN6_PCODE_MAILBOX, D_BDW_PLUS, NULL, mailbox_write);
+
MMIO_D(GEN8_PRIVATE_PAT_LO, D_BDW_PLUS);
MMIO_D(GEN8_PRIVATE_PAT_HI, D_BDW_PLUS);
@@ -2341,14 +2501,14 @@
MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 32, 0, 0, 0, D_BDW_PLUS, NULL, NULL);
#undef RING_REG
- MMIO_RING_GM(RING_HWS_PGA, D_BDW_PLUS, NULL, NULL);
- MMIO_GM(0x1c080, D_BDW_PLUS, NULL, NULL);
+ MMIO_RING_GM_RDR(RING_HWS_PGA, D_BDW_PLUS, NULL, NULL);
+ MMIO_GM_RDR(RING_HWS_PGA(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL);
MMIO_DFH(HDC_CHICKEN0, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
- MMIO_D(CHICKEN_PIPESL_1(PIPE_A), D_BDW);
- MMIO_D(CHICKEN_PIPESL_1(PIPE_B), D_BDW);
- MMIO_D(CHICKEN_PIPESL_1(PIPE_C), D_BDW);
+ MMIO_D(CHICKEN_PIPESL_1(PIPE_A), D_BDW_PLUS);
+ MMIO_D(CHICKEN_PIPESL_1(PIPE_B), D_BDW_PLUS);
+ MMIO_D(CHICKEN_PIPESL_1(PIPE_C), D_BDW_PLUS);
MMIO_D(WM_MISC, D_BDW);
MMIO_D(BDW_EDP_PSR_BASE, D_BDW);
@@ -2362,27 +2522,31 @@
MMIO_D(GEN8_EU_DISABLE1, D_BDW_PLUS);
MMIO_D(GEN8_EU_DISABLE2, D_BDW_PLUS);
- MMIO_D(0xfdc, D_BDW);
- MMIO_DFH(GEN8_ROW_CHICKEN, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
- MMIO_D(GEN7_ROW_CHICKEN2, D_BDW_PLUS);
- MMIO_D(GEN8_UCGCTL6, D_BDW_PLUS);
+ MMIO_D(0xfdc, D_BDW_PLUS);
+ MMIO_DFH(GEN8_ROW_CHICKEN, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS,
+ NULL, NULL);
+ MMIO_DFH(GEN7_ROW_CHICKEN2, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS,
+ NULL, NULL);
+ MMIO_DFH(GEN8_UCGCTL6, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
- MMIO_D(0xb1f0, D_BDW);
- MMIO_D(0xb1c0, D_BDW);
+ MMIO_DFH(0xb1f0, D_BDW, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xb1c0, D_BDW, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(GEN8_L3SQCREG4, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
- MMIO_D(0xb100, D_BDW);
- MMIO_D(0xb10c, D_BDW);
+ MMIO_DFH(0xb100, D_BDW, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xb10c, D_BDW, F_CMD_ACCESS, NULL, NULL);
MMIO_D(0xb110, D_BDW);
- MMIO_DFH(0x24d0, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
- MMIO_DFH(0x24d4, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
- MMIO_DFH(0x24d8, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
- MMIO_DFH(0x24dc, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_F(0x24d0, 48, F_CMD_ACCESS, 0, 0, D_BDW_PLUS,
+ NULL, force_nonpriv_write);
- MMIO_D(0x83a4, D_BDW);
+ MMIO_D(0x22040, D_BDW_PLUS);
+ MMIO_D(0x44484, D_BDW_PLUS);
+ MMIO_D(0x4448c, D_BDW_PLUS);
+
+ MMIO_DFH(0x83a4, D_BDW, F_CMD_ACCESS, NULL, NULL);
MMIO_D(GEN8_L3_LRA_1_GPGPU, D_BDW_PLUS);
- MMIO_D(0x8430, D_BDW);
+ MMIO_DFH(0x8430, D_BDW, F_CMD_ACCESS, NULL, NULL);
MMIO_D(0x110000, D_BDW_PLUS);
@@ -2394,10 +2558,19 @@
MMIO_DFH(0xe194, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(0xe188, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(HALF_SLICE_CHICKEN2, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
- MMIO_DFH(0x2580, D_BDW_PLUS, F_MODE_MASK, NULL, NULL);
+ MMIO_DFH(0x2580, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
- MMIO_D(0x2248, D_BDW);
+ MMIO_DFH(0x2248, D_BDW, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xe220, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xe230, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xe240, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xe260, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xe270, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xe280, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xe2a0, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xe2b0, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0xe2c0, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
return 0;
}
@@ -2420,7 +2593,6 @@
MMIO_D(HSW_PWR_WELL_BIOS, D_SKL);
MMIO_DH(HSW_PWR_WELL_DRIVER, D_SKL, NULL, skl_power_well_ctl_write);
- MMIO_DH(GEN6_PCODE_MAILBOX, D_SKL, NULL, mailbox_write);
MMIO_D(0xa210, D_SKL_PLUS);
MMIO_D(GEN9_MEDIA_PG_IDLE_HYSTERESIS, D_SKL_PLUS);
MMIO_D(GEN9_RENDER_PG_IDLE_HYSTERESIS, D_SKL_PLUS);
@@ -2578,16 +2750,16 @@
MMIO_F(0xb020, 0x80, F_CMD_ACCESS, 0, 0, D_SKL, NULL, NULL);
MMIO_D(0xd08, D_SKL);
- MMIO_D(0x20e0, D_SKL);
- MMIO_D(0x20ec, D_SKL);
+ MMIO_DFH(0x20e0, D_SKL, F_MODE_MASK, NULL, NULL);
+ MMIO_DFH(0x20ec, D_SKL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
/* TRTT */
- MMIO_D(0x4de0, D_SKL);
- MMIO_D(0x4de4, D_SKL);
- MMIO_D(0x4de8, D_SKL);
- MMIO_D(0x4dec, D_SKL);
- MMIO_D(0x4df0, D_SKL);
- MMIO_DH(0x4df4, D_SKL, NULL, gen9_trtte_write);
+ MMIO_DFH(0x4de0, D_SKL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x4de4, D_SKL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x4de8, D_SKL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x4dec, D_SKL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x4df0, D_SKL, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(0x4df4, D_SKL, F_CMD_ACCESS, NULL, gen9_trtte_write);
MMIO_DH(0x4dfc, D_SKL, NULL, gen9_trtt_chicken_write);
MMIO_D(0x45008, D_SKL);
@@ -2611,7 +2783,7 @@
MMIO_D(0x65f08, D_SKL);
MMIO_D(0x320f0, D_SKL);
- MMIO_D(_REG_VCS2_EXCC, D_SKL);
+ MMIO_DFH(_REG_VCS2_EXCC, D_SKL, F_CMD_ACCESS, NULL, NULL);
MMIO_D(0x70034, D_SKL);
MMIO_D(0x71034, D_SKL);
MMIO_D(0x72034, D_SKL);
@@ -2624,6 +2796,9 @@
MMIO_D(_PLANE_KEYMSK_1(PIPE_C), D_SKL);
MMIO_D(0x44500, D_SKL);
+ MMIO_DFH(GEN9_CSFE_CHICKEN1_RCS, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
+ MMIO_DFH(GEN8_HDC_CHICKEN1, D_SKL, F_MODE_MASK | F_CMD_ACCESS,
+ NULL, NULL);
return 0;
}
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 0f7f5d9..84d8016 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -96,10 +96,10 @@
struct device *dev = &vgpu->gvt->dev_priv->drm.pdev->dev;
dma_addr_t daddr;
- page = pfn_to_page(pfn);
- if (is_error_page(page))
+ if (unlikely(!pfn_valid(pfn)))
return -EFAULT;
+ page = pfn_to_page(pfn);
daddr = dma_map_page(dev, page, 0, PAGE_SIZE,
PCI_DMA_BIDIRECTIONAL);
if (dma_mapping_error(dev, daddr))
@@ -295,10 +295,10 @@
return 0;
return sprintf(buf, "low_gm_size: %dMB\nhigh_gm_size: %dMB\n"
- "fence: %d\n",
- BYTES_TO_MB(type->low_gm_size),
- BYTES_TO_MB(type->high_gm_size),
- type->fence);
+ "fence: %d\nresolution: %s\n",
+ BYTES_TO_MB(type->low_gm_size),
+ BYTES_TO_MB(type->high_gm_size),
+ type->fence, vgpu_edid_str(type->resolution));
}
static MDEV_TYPE_ATTR_RO(available_instances);
diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c
index 4df078b..60b698c 100644
--- a/drivers/gpu/drm/i915/gvt/mmio.c
+++ b/drivers/gpu/drm/i915/gvt/mmio.c
@@ -57,6 +57,58 @@
(reg >= gvt->device_info.gtt_start_offset \
&& reg < gvt->device_info.gtt_start_offset + gvt_ggtt_sz(gvt))
+static void failsafe_emulate_mmio_rw(struct intel_vgpu *vgpu, uint64_t pa,
+ void *p_data, unsigned int bytes, bool read)
+{
+ struct intel_gvt *gvt = NULL;
+ void *pt = NULL;
+ unsigned int offset = 0;
+
+ if (!vgpu || !p_data)
+ return;
+
+ gvt = vgpu->gvt;
+ mutex_lock(&gvt->lock);
+ offset = intel_vgpu_gpa_to_mmio_offset(vgpu, pa);
+ if (reg_is_mmio(gvt, offset)) {
+ if (read)
+ intel_vgpu_default_mmio_read(vgpu, offset, p_data,
+ bytes);
+ else
+ intel_vgpu_default_mmio_write(vgpu, offset, p_data,
+ bytes);
+ } else if (reg_is_gtt(gvt, offset) &&
+ vgpu->gtt.ggtt_mm->virtual_page_table) {
+ offset -= gvt->device_info.gtt_start_offset;
+ pt = vgpu->gtt.ggtt_mm->virtual_page_table + offset;
+ if (read)
+ memcpy(p_data, pt, bytes);
+ else
+ memcpy(pt, p_data, bytes);
+
+ } else if (atomic_read(&vgpu->gtt.n_write_protected_guest_page)) {
+ struct intel_vgpu_guest_page *gp;
+
+ /* Since we enter the failsafe mode early during guest boot,
+ * guest may not have chance to set up its ppgtt table, so
+ * there should not be any wp pages for guest. Keep the wp
+ * related code here in case we need to handle it in furture.
+ */
+ gp = intel_vgpu_find_guest_page(vgpu, pa >> PAGE_SHIFT);
+ if (gp) {
+ /* remove write protection to prevent furture traps */
+ intel_vgpu_clean_guest_page(vgpu, gp);
+ if (read)
+ intel_gvt_hypervisor_read_gpa(vgpu, pa,
+ p_data, bytes);
+ else
+ intel_gvt_hypervisor_write_gpa(vgpu, pa,
+ p_data, bytes);
+ }
+ }
+ mutex_unlock(&gvt->lock);
+}
+
/**
* intel_vgpu_emulate_mmio_read - emulate MMIO read
* @vgpu: a vGPU
@@ -75,6 +127,11 @@
unsigned int offset = 0;
int ret = -EINVAL;
+
+ if (vgpu->failsafe) {
+ failsafe_emulate_mmio_rw(vgpu, pa, p_data, bytes, true);
+ return 0;
+ }
mutex_lock(&gvt->lock);
if (atomic_read(&vgpu->gtt.n_write_protected_guest_page)) {
@@ -188,6 +245,11 @@
u32 old_vreg = 0, old_sreg = 0;
int ret = -EINVAL;
+ if (vgpu->failsafe) {
+ failsafe_emulate_mmio_rw(vgpu, pa, p_data, bytes, false);
+ return 0;
+ }
+
mutex_lock(&gvt->lock);
if (atomic_read(&vgpu->gtt.n_write_protected_guest_page)) {
@@ -236,7 +298,7 @@
mmio = intel_gvt_find_mmio_info(gvt, rounddown(offset, 4));
if (!mmio && !vgpu->mmio.disable_warn_untrack)
- gvt_err("vgpu%d: write untracked MMIO %x len %d val %x\n",
+ gvt_dbg_mmio("vgpu%d: write untracked MMIO %x len %d val %x\n",
vgpu->id, offset, bytes, *(u32 *)p_data);
if (!intel_gvt_mmio_is_unalign(gvt, offset)) {
@@ -322,6 +384,8 @@
/* set the bit 0:2(Core C-State ) to C0 */
vgpu_vreg(vgpu, GEN6_GT_CORE_STATUS) = 0;
+
+ vgpu->mmio.disable_warn_untrack = false;
}
/**
diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c
index d9fb41a..5d1caf9 100644
--- a/drivers/gpu/drm/i915/gvt/opregion.c
+++ b/drivers/gpu/drm/i915/gvt/opregion.c
@@ -27,7 +27,6 @@
static int init_vgpu_opregion(struct intel_vgpu *vgpu, u32 gpa)
{
- void __iomem *host_va = vgpu->gvt->opregion.opregion_va;
u8 *buf;
int i;
@@ -43,8 +42,8 @@
if (!vgpu_opregion(vgpu)->va)
return -ENOMEM;
- memcpy_fromio(vgpu_opregion(vgpu)->va, host_va,
- INTEL_GVT_OPREGION_SIZE);
+ memcpy(vgpu_opregion(vgpu)->va, vgpu->gvt->opregion.opregion_va,
+ INTEL_GVT_OPREGION_SIZE);
for (i = 0; i < INTEL_GVT_OPREGION_PAGES; i++)
vgpu_opregion(vgpu)->gfn[i] = (gpa >> PAGE_SHIFT) + i;
diff --git a/drivers/gpu/drm/i915/gvt/render.c b/drivers/gpu/drm/i915/gvt/render.c
index 2b3a642..73f052a 100644
--- a/drivers/gpu/drm/i915/gvt/render.c
+++ b/drivers/gpu/drm/i915/gvt/render.c
@@ -53,6 +53,14 @@
{RCS, _MMIO(0x24d4), 0, false},
{RCS, _MMIO(0x24d8), 0, false},
{RCS, _MMIO(0x24dc), 0, false},
+ {RCS, _MMIO(0x24e0), 0, false},
+ {RCS, _MMIO(0x24e4), 0, false},
+ {RCS, _MMIO(0x24e8), 0, false},
+ {RCS, _MMIO(0x24ec), 0, false},
+ {RCS, _MMIO(0x24f0), 0, false},
+ {RCS, _MMIO(0x24f4), 0, false},
+ {RCS, _MMIO(0x24f8), 0, false},
+ {RCS, _MMIO(0x24fc), 0, false},
{RCS, _MMIO(0x7004), 0xffff, true},
{RCS, _MMIO(0x7008), 0xffff, true},
{RCS, _MMIO(0x7000), 0xffff, true},
@@ -76,6 +84,14 @@
{RCS, _MMIO(0x24d4), 0, false},
{RCS, _MMIO(0x24d8), 0, false},
{RCS, _MMIO(0x24dc), 0, false},
+ {RCS, _MMIO(0x24e0), 0, false},
+ {RCS, _MMIO(0x24e4), 0, false},
+ {RCS, _MMIO(0x24e8), 0, false},
+ {RCS, _MMIO(0x24ec), 0, false},
+ {RCS, _MMIO(0x24f0), 0, false},
+ {RCS, _MMIO(0x24f4), 0, false},
+ {RCS, _MMIO(0x24f8), 0, false},
+ {RCS, _MMIO(0x24fc), 0, false},
{RCS, _MMIO(0x7004), 0xffff, true},
{RCS, _MMIO(0x7008), 0xffff, true},
{RCS, _MMIO(0x7000), 0xffff, true},
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index d6b6d0e..d3a56c9 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -139,6 +139,9 @@
struct intel_vgpu_workload *workload =
scheduler->current_workload[req->engine->id];
+ if (unlikely(!workload))
+ return NOTIFY_OK;
+
switch (action) {
case INTEL_CONTEXT_SCHEDULE_IN:
intel_gvt_load_render_mmio(workload->vgpu,
@@ -148,6 +151,15 @@
case INTEL_CONTEXT_SCHEDULE_OUT:
intel_gvt_restore_render_mmio(workload->vgpu,
workload->ring_id);
+ /* If the status is -EINPROGRESS means this workload
+ * doesn't meet any issue during dispatching so when
+ * get the SCHEDULE_OUT set the status to be zero for
+ * good. If the status is NOT -EINPROGRESS means there
+ * is something wrong happened during dispatching and
+ * the status should not be set to zero
+ */
+ if (workload->status == -EINPROGRESS)
+ workload->status = 0;
atomic_set(&workload->shadow_ctx_active, 0);
break;
default:
@@ -359,15 +371,23 @@
workload = scheduler->current_workload[ring_id];
vgpu = workload->vgpu;
- if (!workload->status && !vgpu->resetting) {
+ /* For the workload w/ request, needs to wait for the context
+ * switch to make sure request is completed.
+ * For the workload w/o request, directly complete the workload.
+ */
+ if (workload->req) {
wait_event(workload->shadow_ctx_status_wq,
!atomic_read(&workload->shadow_ctx_active));
- update_guest_context(workload);
+ i915_gem_request_put(fetch_and_zero(&workload->req));
- for_each_set_bit(event, workload->pending_events,
- INTEL_GVT_EVENT_MAX)
- intel_vgpu_trigger_virtual_event(vgpu, event);
+ if (!workload->status && !vgpu->resetting) {
+ update_guest_context(workload);
+
+ for_each_set_bit(event, workload->pending_events,
+ INTEL_GVT_EVENT_MAX)
+ intel_vgpu_trigger_virtual_event(vgpu, event);
+ }
}
gvt_dbg_sched("ring id %d complete workload %p status %d\n",
@@ -397,7 +417,6 @@
int ring_id = p->ring_id;
struct intel_gvt_workload_scheduler *scheduler = &gvt->scheduler;
struct intel_vgpu_workload *workload = NULL;
- long lret;
int ret;
bool need_force_wake = IS_SKYLAKE(gvt->dev_priv);
DEFINE_WAIT_FUNC(wait, woken_wake_function);
@@ -446,23 +465,24 @@
gvt_dbg_sched("ring id %d wait workload %p\n",
workload->ring_id, workload);
-
- lret = i915_wait_request(workload->req,
+retry:
+ i915_wait_request(workload->req,
0, MAX_SCHEDULE_TIMEOUT);
- if (lret < 0) {
- workload->status = lret;
- gvt_err("fail to wait workload, skip\n");
- } else {
- workload->status = 0;
+ /* I915 has replay mechanism and a request will be replayed
+ * if there is i915 reset. So the seqno will be updated anyway.
+ * If the seqno is not updated yet after waiting, which means
+ * the replay may still be in progress and we can wait again.
+ */
+ if (!i915_gem_request_completed(workload->req)) {
+ gvt_dbg_sched("workload %p not completed, wait again\n",
+ workload);
+ goto retry;
}
complete:
gvt_dbg_sched("will complete workload %p, status: %d\n",
workload, workload->status);
- if (workload->req)
- i915_gem_request_put(fetch_and_zero(&workload->req));
-
complete_current_workload(gvt, ring_id);
if (need_force_wake)
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index 95a97aa..41cfa5c 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -64,6 +64,20 @@
WARN_ON(sizeof(struct vgt_if) != VGT_PVINFO_SIZE);
}
+static struct {
+ unsigned int low_mm;
+ unsigned int high_mm;
+ unsigned int fence;
+ enum intel_vgpu_edid edid;
+ char *name;
+} vgpu_types[] = {
+/* Fixed vGPU type table */
+ { MB_TO_BYTES(64), MB_TO_BYTES(512), 4, GVT_EDID_1024_768, "8" },
+ { MB_TO_BYTES(128), MB_TO_BYTES(512), 4, GVT_EDID_1920_1200, "4" },
+ { MB_TO_BYTES(256), MB_TO_BYTES(1024), 4, GVT_EDID_1920_1200, "2" },
+ { MB_TO_BYTES(512), MB_TO_BYTES(2048), 4, GVT_EDID_1920_1200, "1" },
+};
+
/**
* intel_gvt_init_vgpu_types - initialize vGPU type list
* @gvt : GVT device
@@ -78,9 +92,8 @@
unsigned int min_low;
/* vGPU type name is defined as GVTg_Vx_y which contains
- * physical GPU generation type and 'y' means maximum vGPU
- * instances user can create on one physical GPU for this
- * type.
+ * physical GPU generation type (e.g V4 as BDW server, V5 as
+ * SKL server).
*
* Depend on physical SKU resource, might see vGPU types like
* GVTg_V4_8, GVTg_V4_4, GVTg_V4_2, etc. We can create
@@ -92,7 +105,7 @@
*/
low_avail = gvt_aperture_sz(gvt) - HOST_LOW_GM_SIZE;
high_avail = gvt_hidden_sz(gvt) - HOST_HIGH_GM_SIZE;
- num_types = 4;
+ num_types = sizeof(vgpu_types) / sizeof(vgpu_types[0]);
gvt->types = kzalloc(num_types * sizeof(struct intel_vgpu_type),
GFP_KERNEL);
@@ -101,28 +114,29 @@
min_low = MB_TO_BYTES(32);
for (i = 0; i < num_types; ++i) {
- if (low_avail / min_low == 0)
+ if (low_avail / vgpu_types[i].low_mm == 0)
break;
- gvt->types[i].low_gm_size = min_low;
- gvt->types[i].high_gm_size = max((min_low<<3), MB_TO_BYTES(384U));
- gvt->types[i].fence = 4;
- gvt->types[i].max_instance = min(low_avail / min_low,
- high_avail / gvt->types[i].high_gm_size);
- gvt->types[i].avail_instance = gvt->types[i].max_instance;
+
+ gvt->types[i].low_gm_size = vgpu_types[i].low_mm;
+ gvt->types[i].high_gm_size = vgpu_types[i].high_mm;
+ gvt->types[i].fence = vgpu_types[i].fence;
+ gvt->types[i].resolution = vgpu_types[i].edid;
+ gvt->types[i].avail_instance = min(low_avail / vgpu_types[i].low_mm,
+ high_avail / vgpu_types[i].high_mm);
if (IS_GEN8(gvt->dev_priv))
- sprintf(gvt->types[i].name, "GVTg_V4_%u",
- gvt->types[i].max_instance);
+ sprintf(gvt->types[i].name, "GVTg_V4_%s",
+ vgpu_types[i].name);
else if (IS_GEN9(gvt->dev_priv))
- sprintf(gvt->types[i].name, "GVTg_V5_%u",
- gvt->types[i].max_instance);
+ sprintf(gvt->types[i].name, "GVTg_V5_%s",
+ vgpu_types[i].name);
- min_low <<= 1;
- gvt_dbg_core("type[%d]: %s max %u avail %u low %u high %u fence %u\n",
- i, gvt->types[i].name, gvt->types[i].max_instance,
+ gvt_dbg_core("type[%d]: %s avail %u low %u high %u fence %u res %s\n",
+ i, gvt->types[i].name,
gvt->types[i].avail_instance,
gvt->types[i].low_gm_size,
- gvt->types[i].high_gm_size, gvt->types[i].fence);
+ gvt->types[i].high_gm_size, gvt->types[i].fence,
+ vgpu_edid_str(gvt->types[i].resolution));
}
gvt->num_types = i;
@@ -138,7 +152,7 @@
{
int i;
unsigned int low_gm_avail, high_gm_avail, fence_avail;
- unsigned int low_gm_min, high_gm_min, fence_min, total_min;
+ unsigned int low_gm_min, high_gm_min, fence_min;
/* Need to depend on maxium hw resource size but keep on
* static config for now.
@@ -154,12 +168,11 @@
low_gm_min = low_gm_avail / gvt->types[i].low_gm_size;
high_gm_min = high_gm_avail / gvt->types[i].high_gm_size;
fence_min = fence_avail / gvt->types[i].fence;
- total_min = min(min(low_gm_min, high_gm_min), fence_min);
- gvt->types[i].avail_instance = min(gvt->types[i].max_instance,
- total_min);
+ gvt->types[i].avail_instance = min(min(low_gm_min, high_gm_min),
+ fence_min);
- gvt_dbg_core("update type[%d]: %s max %u avail %u low %u high %u fence %u\n",
- i, gvt->types[i].name, gvt->types[i].max_instance,
+ gvt_dbg_core("update type[%d]: %s avail %u low %u high %u fence %u\n",
+ i, gvt->types[i].name,
gvt->types[i].avail_instance, gvt->types[i].low_gm_size,
gvt->types[i].high_gm_size, gvt->types[i].fence);
}
@@ -248,7 +261,7 @@
if (ret)
goto out_detach_hypervisor_vgpu;
- ret = intel_vgpu_init_display(vgpu);
+ ret = intel_vgpu_init_display(vgpu, param->resolution);
if (ret)
goto out_clean_gtt;
@@ -312,6 +325,7 @@
param.low_gm_sz = type->low_gm_size;
param.high_gm_sz = type->high_gm_size;
param.fence_sz = type->fence;
+ param.resolution = type->resolution;
/* XXX current param based on MB */
param.low_gm_sz = BYTES_TO_MB(param.low_gm_sz);
@@ -387,8 +401,12 @@
populate_pvinfo_page(vgpu);
intel_vgpu_reset_display(vgpu);
- if (dmlr)
+ if (dmlr) {
intel_vgpu_reset_cfg_space(vgpu);
+ /* only reset the failsafe mode when dmlr reset */
+ vgpu->failsafe = false;
+ vgpu->pv_notified = false;
+ }
}
vgpu->resetting = false;
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
index e10a4ed..1144e0c 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
@@ -65,13 +65,11 @@
switch (format) {
case DRM_FORMAT_RGB565:
dev_dbg(drm->dev, "Setting up RGB565 mode\n");
- ctrl |= CTRL_SET_BUS_WIDTH(STMLCDIF_16BIT);
ctrl |= CTRL_SET_WORD_LENGTH(0);
ctrl1 |= CTRL1_SET_BYTE_PACKAGING(0xf);
break;
case DRM_FORMAT_XRGB8888:
dev_dbg(drm->dev, "Setting up XRGB8888 mode\n");
- ctrl |= CTRL_SET_BUS_WIDTH(STMLCDIF_24BIT);
ctrl |= CTRL_SET_WORD_LENGTH(3);
/* Do not use packed pixels = one pixel per word instead. */
ctrl1 |= CTRL1_SET_BYTE_PACKAGING(0x7);
@@ -87,6 +85,36 @@
return 0;
}
+static void mxsfb_set_bus_fmt(struct mxsfb_drm_private *mxsfb)
+{
+ struct drm_crtc *crtc = &mxsfb->pipe.crtc;
+ struct drm_device *drm = crtc->dev;
+ u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+ u32 reg;
+
+ reg = readl(mxsfb->base + LCDC_CTRL);
+
+ if (mxsfb->connector.display_info.num_bus_formats)
+ bus_format = mxsfb->connector.display_info.bus_formats[0];
+
+ reg &= ~CTRL_BUS_WIDTH_MASK;
+ switch (bus_format) {
+ case MEDIA_BUS_FMT_RGB565_1X16:
+ reg |= CTRL_SET_BUS_WIDTH(STMLCDIF_16BIT);
+ break;
+ case MEDIA_BUS_FMT_RGB666_1X18:
+ reg |= CTRL_SET_BUS_WIDTH(STMLCDIF_18BIT);
+ break;
+ case MEDIA_BUS_FMT_RGB888_1X24:
+ reg |= CTRL_SET_BUS_WIDTH(STMLCDIF_24BIT);
+ break;
+ default:
+ dev_err(drm->dev, "Unknown media bus format %d\n", bus_format);
+ break;
+ }
+ writel(reg, mxsfb->base + LCDC_CTRL);
+}
+
static void mxsfb_enable_controller(struct mxsfb_drm_private *mxsfb)
{
u32 reg;
@@ -168,13 +196,22 @@
vdctrl0 |= VDCTRL0_HSYNC_ACT_HIGH;
if (m->flags & DRM_MODE_FLAG_PVSYNC)
vdctrl0 |= VDCTRL0_VSYNC_ACT_HIGH;
- if (bus_flags & DRM_BUS_FLAG_DE_HIGH)
+ /* Make sure Data Enable is high active by default */
+ if (!(bus_flags & DRM_BUS_FLAG_DE_LOW))
vdctrl0 |= VDCTRL0_ENABLE_ACT_HIGH;
- if (bus_flags & DRM_BUS_FLAG_PIXDATA_NEGEDGE)
+ /*
+ * DRM_BUS_FLAG_PIXDATA_ defines are controller centric,
+ * controllers VDCTRL0_DOTCLK is display centric.
+ * Drive on positive edge -> display samples on falling edge
+ * DRM_BUS_FLAG_PIXDATA_POSEDGE -> VDCTRL0_DOTCLK_ACT_FALLING
+ */
+ if (bus_flags & DRM_BUS_FLAG_PIXDATA_POSEDGE)
vdctrl0 |= VDCTRL0_DOTCLK_ACT_FALLING;
writel(vdctrl0, mxsfb->base + LCDC_VDCTRL0);
+ mxsfb_set_bus_fmt(mxsfb);
+
/* Frame length in lines. */
writel(m->crtc_vtotal, mxsfb->base + LCDC_VDCTRL1);
@@ -184,8 +221,8 @@
VDCTRL2_SET_HSYNC_PERIOD(m->crtc_htotal),
mxsfb->base + LCDC_VDCTRL2);
- writel(SET_HOR_WAIT_CNT(m->crtc_hblank_end - m->crtc_hsync_end) |
- SET_VERT_WAIT_CNT(m->crtc_vblank_end - m->crtc_vsync_end),
+ writel(SET_HOR_WAIT_CNT(m->crtc_htotal - m->crtc_hsync_start) |
+ SET_VERT_WAIT_CNT(m->crtc_vtotal - m->crtc_vsync_start),
mxsfb->base + LCDC_VDCTRL3);
writel(SET_DOTCLK_H_VALID_DATA_CNT(m->hdisplay),
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
index cdfbe02..ff6d6a6 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -102,14 +102,18 @@
{
struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe);
+ drm_panel_prepare(mxsfb->panel);
mxsfb_crtc_enable(mxsfb);
+ drm_panel_enable(mxsfb->panel);
}
static void mxsfb_pipe_disable(struct drm_simple_display_pipe *pipe)
{
struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe);
+ drm_panel_disable(mxsfb->panel);
mxsfb_crtc_disable(mxsfb);
+ drm_panel_unprepare(mxsfb->panel);
}
static void mxsfb_pipe_update(struct drm_simple_display_pipe *pipe,
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_out.c b/drivers/gpu/drm/mxsfb/mxsfb_out.c
index fa8d173..b8e8142 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_out.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_out.c
@@ -112,6 +112,7 @@
int mxsfb_create_output(struct drm_device *drm)
{
+ struct mxsfb_drm_private *mxsfb = drm->dev_private;
struct device_node *ep_np = NULL;
struct of_endpoint ep;
int ret;
@@ -127,5 +128,8 @@
}
}
+ if (!mxsfb->panel)
+ return -EPROBE_DEFER;
+
return 0;
}
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_regs.h b/drivers/gpu/drm/mxsfb/mxsfb_regs.h
index 31d62cd..66a6ba9 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_regs.h
+++ b/drivers/gpu/drm/mxsfb/mxsfb_regs.h
@@ -44,6 +44,7 @@
#define CTRL_DATA_SELECT (1 << 16)
#define CTRL_SET_BUS_WIDTH(x) (((x) & 0x3) << 10)
#define CTRL_GET_BUS_WIDTH(x) (((x) >> 10) & 0x3)
+#define CTRL_BUS_WIDTH_MASK (0x3 << 10)
#define CTRL_SET_WORD_LENGTH(x) (((x) & 0x3) << 8)
#define CTRL_GET_WORD_LENGTH(x) (((x) >> 8) & 0x3)
#define CTRL_MASTER (1 << 5)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
index b5bfbe5..b0ff304 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
@@ -32,6 +32,10 @@
{
const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode;
struct rcar_du_device *rcdu = crtc->group->dev;
+ struct vsp1_du_lif_config cfg = {
+ .width = mode->hdisplay,
+ .height = mode->vdisplay,
+ };
struct rcar_du_plane_state state = {
.state = {
.crtc = &crtc->crtc,
@@ -66,12 +70,12 @@
*/
crtc->group->need_restart = true;
- vsp1_du_setup_lif(crtc->vsp->vsp, mode->hdisplay, mode->vdisplay);
+ vsp1_du_setup_lif(crtc->vsp->vsp, &cfg);
}
void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
{
- vsp1_du_setup_lif(crtc->vsp->vsp, 0, 0);
+ vsp1_du_setup_lif(crtc->vsp->vsp, NULL);
}
void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 81a80c8..bd0d198 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -543,7 +543,7 @@
/*
* In case a device driver's probe() fails (e.g.,
* util_probe() -> vmbus_open() returns -ENOMEM) and the device is
- * rescinded later (e.g., we dynamically disble an Integrated Service
+ * rescinded later (e.g., we dynamically disable an Integrated Service
* in Hyper-V Manager), the driver's remove() invokes vmbus_close():
* here we should skip most of the below cleanup work.
*/
diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
index 0652281..78792b4 100644
--- a/drivers/i2c/busses/i2c-brcmstb.c
+++ b/drivers/i2c/busses/i2c-brcmstb.c
@@ -465,6 +465,7 @@
u8 *tmp_buf;
int len = 0;
int xfersz = brcmstb_i2c_get_xfersz(dev);
+ u32 cond, cond_per_msg;
if (dev->is_suspended)
return -EBUSY;
@@ -481,10 +482,11 @@
pmsg->buf ? pmsg->buf[0] : '0', pmsg->len);
if (i < (num - 1) && (msgs[i + 1].flags & I2C_M_NOSTART))
- brcmstb_set_i2c_start_stop(dev, ~(COND_START_STOP));
+ cond = ~COND_START_STOP;
else
- brcmstb_set_i2c_start_stop(dev,
- COND_RESTART | COND_NOSTOP);
+ cond = COND_RESTART | COND_NOSTOP;
+
+ brcmstb_set_i2c_start_stop(dev, cond);
/* Send slave address */
if (!(pmsg->flags & I2C_M_NOSTART)) {
@@ -497,13 +499,24 @@
}
}
+ cond_per_msg = cond;
+
/* Perform data transfer */
while (len) {
bytes_to_xfer = min(len, xfersz);
- if (len <= xfersz && i == (num - 1))
- brcmstb_set_i2c_start_stop(dev,
- ~(COND_START_STOP));
+ if (len <= xfersz) {
+ if (i == (num - 1))
+ cond_per_msg = cond_per_msg &
+ ~(COND_RESTART | COND_NOSTOP);
+ else
+ cond_per_msg = cond;
+ } else {
+ cond_per_msg = (cond_per_msg & ~COND_RESTART) |
+ COND_NOSTOP;
+ }
+
+ brcmstb_set_i2c_start_stop(dev, cond_per_msg);
rc = brcmstb_i2c_xfer_bsc_data(dev, tmp_buf,
bytes_to_xfer, pmsg);
@@ -512,6 +525,8 @@
len -= bytes_to_xfer;
tmp_buf += bytes_to_xfer;
+
+ cond_per_msg = COND_NOSTART | COND_NOSTOP;
}
}
diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h
index c1db3a5..d9aaf17 100644
--- a/drivers/i2c/busses/i2c-designware-core.h
+++ b/drivers/i2c/busses/i2c-designware-core.h
@@ -88,6 +88,7 @@
void __iomem *base;
struct completion cmd_complete;
struct clk *clk;
+ struct reset_control *rst;
u32 (*get_clk_rate_khz) (struct dw_i2c_dev *dev);
struct dw_pci_controller *controller;
int cmd_err;
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 6ce4313..79c4b4e 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -38,6 +38,7 @@
#include <linux/pm_runtime.h>
#include <linux/property.h>
#include <linux/io.h>
+#include <linux/reset.h>
#include <linux/slab.h>
#include <linux/acpi.h>
#include <linux/platform_data/i2c-designware.h>
@@ -199,6 +200,14 @@
dev->irq = irq;
platform_set_drvdata(pdev, dev);
+ dev->rst = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
+ if (IS_ERR(dev->rst)) {
+ if (PTR_ERR(dev->rst) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ } else {
+ reset_control_deassert(dev->rst);
+ }
+
if (pdata) {
dev->clk_freq = pdata->i2c_scl_freq;
} else {
@@ -235,12 +244,13 @@
&& dev->clk_freq != 1000000 && dev->clk_freq != 3400000) {
dev_err(&pdev->dev,
"Only 100kHz, 400kHz, 1MHz and 3.4MHz supported");
- return -EINVAL;
+ r = -EINVAL;
+ goto exit_reset;
}
r = i2c_dw_eval_lock_support(dev);
if (r)
- return r;
+ goto exit_reset;
dev->functionality = I2C_FUNC_10BIT_ADDR | DW_IC_DEFAULT_FUNCTIONALITY;
@@ -286,10 +296,18 @@
}
r = i2c_dw_probe(dev);
- if (r && !dev->pm_runtime_disabled)
- pm_runtime_disable(&pdev->dev);
+ if (r)
+ goto exit_probe;
return r;
+
+exit_probe:
+ if (!dev->pm_runtime_disabled)
+ pm_runtime_disable(&pdev->dev);
+exit_reset:
+ if (!IS_ERR_OR_NULL(dev->rst))
+ reset_control_assert(dev->rst);
+ return r;
}
static int dw_i2c_plat_remove(struct platform_device *pdev)
@@ -306,6 +324,8 @@
pm_runtime_put_sync(&pdev->dev);
if (!dev->pm_runtime_disabled)
pm_runtime_disable(&pdev->dev);
+ if (!IS_ERR_OR_NULL(dev->rst))
+ reset_control_assert(dev->rst);
return 0;
}
diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c
index cbd93ce..736a824 100644
--- a/drivers/i2c/busses/i2c-exynos5.c
+++ b/drivers/i2c/busses/i2c-exynos5.c
@@ -457,7 +457,6 @@
int_status = readl(i2c->regs + HSI2C_INT_STATUS);
writel(int_status, i2c->regs + HSI2C_INT_STATUS);
- trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS);
/* handle interrupt related to the transfer status */
if (i2c->variant->hw == HSI2C_EXYNOS7) {
@@ -482,11 +481,13 @@
goto stop;
}
+ trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS);
if ((trans_status & HSI2C_MASTER_ST_MASK) == HSI2C_MASTER_ST_LOSE) {
i2c->state = -EAGAIN;
goto stop;
}
} else if (int_status & HSI2C_INT_I2C) {
+ trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS);
if (trans_status & HSI2C_NO_DEV_ACK) {
dev_dbg(i2c->dev, "No ACK from device\n");
i2c->state = -ENXIO;
diff --git a/drivers/i2c/busses/i2c-meson.c b/drivers/i2c/busses/i2c-meson.c
index 2aa61bb..73b97c7 100644
--- a/drivers/i2c/busses/i2c-meson.c
+++ b/drivers/i2c/busses/i2c-meson.c
@@ -175,7 +175,7 @@
wdata1 |= *buf++ << ((i - 4) * 8);
writel(wdata0, i2c->regs + REG_TOK_WDATA0);
- writel(wdata0, i2c->regs + REG_TOK_WDATA1);
+ writel(wdata1, i2c->regs + REG_TOK_WDATA1);
dev_dbg(i2c->dev, "%s: data %08x %08x len %d\n", __func__,
wdata0, wdata1, len);
diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 4a7d9bc..45d6171 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -172,14 +172,6 @@
.max_comb_2nd_msg_len = 31,
};
-static const struct i2c_adapter_quirks mt8173_i2c_quirks = {
- .max_num_msgs = 65535,
- .max_write_len = 65535,
- .max_read_len = 65535,
- .max_comb_1st_msg_len = 65535,
- .max_comb_2nd_msg_len = 65535,
-};
-
static const struct mtk_i2c_compatible mt6577_compat = {
.quirks = &mt6577_i2c_quirks,
.pmic_i2c = 0,
@@ -199,7 +191,6 @@
};
static const struct mtk_i2c_compatible mt8173_compat = {
- .quirks = &mt8173_i2c_quirks,
.pmic_i2c = 0,
.dcm = 1,
.auto_restart = 1,
diff --git a/drivers/i2c/busses/i2c-riic.c b/drivers/i2c/busses/i2c-riic.c
index 8f11d34..c811af4 100644
--- a/drivers/i2c/busses/i2c-riic.c
+++ b/drivers/i2c/busses/i2c-riic.c
@@ -218,8 +218,12 @@
}
if (riic->is_last || riic->err) {
- riic_clear_set_bit(riic, 0, ICIER_SPIE, RIIC_ICIER);
+ riic_clear_set_bit(riic, ICIER_TEIE, ICIER_SPIE, RIIC_ICIER);
writeb(ICCR2_SP, riic->base + RIIC_ICCR2);
+ } else {
+ /* Transfer is complete, but do not send STOP */
+ riic_clear_set_bit(riic, ICIER_TEIE, 0, RIIC_ICIER);
+ complete(&riic->msg_done);
}
return IRQ_HANDLED;
diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 83768e8..2178266 100644
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -429,6 +429,7 @@
while (muxc->num_adapters) {
struct i2c_adapter *adap = muxc->adapter[--muxc->num_adapters];
struct i2c_mux_priv *priv = adap->algo_data;
+ struct device_node *np = adap->dev.of_node;
muxc->adapter[muxc->num_adapters] = NULL;
@@ -438,6 +439,7 @@
sysfs_remove_link(&priv->adap.dev.kobj, "mux_device");
i2c_del_adapter(adap);
+ of_node_put(np);
kfree(priv);
}
}
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 1eef56a..05bbf17 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -198,7 +198,8 @@
static int __init crossbar_of_init(struct device_node *node)
{
- int i, size, max = 0, reserved = 0, entry;
+ int i, size, reserved = 0;
+ u32 max = 0, entry;
const __be32 *irqsr;
int ret = -ENOMEM;
diff --git a/drivers/isdn/hisax/st5481_b.c b/drivers/isdn/hisax/st5481_b.c
index 4098491..f64a360 100644
--- a/drivers/isdn/hisax/st5481_b.c
+++ b/drivers/isdn/hisax/st5481_b.c
@@ -239,7 +239,7 @@
}
}
} else {
- // Disble B channel interrupts
+ // Disable B channel interrupts
st5481_usb_device_ctrl_msg(adapter, FFMSK_B1+(bcs->channel * 2), 0, NULL, NULL);
// Disable B channel FIFOs
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h
index a126919..5d13930 100644
--- a/drivers/md/bcache/util.h
+++ b/drivers/md/bcache/util.h
@@ -4,7 +4,6 @@
#include <linux/blkdev.h>
#include <linux/errno.h>
-#include <linux/blkdev.h>
#include <linux/kernel.h>
#include <linux/sched/clock.h>
#include <linux/llist.h>
diff --git a/drivers/media/dvb-frontends/drx39xyj/drx_driver.h b/drivers/media/dvb-frontends/drx39xyj/drx_driver.h
index 7a681d82..4442e47 100644
--- a/drivers/media/dvb-frontends/drx39xyj/drx_driver.h
+++ b/drivers/media/dvb-frontends/drx39xyj/drx_driver.h
@@ -256,8 +256,7 @@
*
* The actual DAP implementation may be restricted to only one of the modes.
* A compiler warning or error will be generated if the DAP implementation
-* overides or cannot handle the mode defined below.
-*
+* overrides or cannot handle the mode defined below.
*/
#ifndef DRXDAP_SINGLE_MASTER
#define DRXDAP_SINGLE_MASTER 1
@@ -272,7 +271,7 @@
*
* This maximum size may be restricted by the actual DAP implementation.
* A compiler warning or error will be generated if the DAP implementation
-* overides or cannot handle the chunksize defined below.
+* overrides or cannot handle the chunksize defined below.
*
* Beware that the DAP uses DRXDAP_MAX_WCHUNKSIZE to create a temporary data
* buffer. Do not undefine or choose too large, unless your system is able to
@@ -292,8 +291,7 @@
*
* This maximum size may be restricted by the actual DAP implementation.
* A compiler warning or error will be generated if the DAP implementation
-* overides or cannot handle the chunksize defined below.
-*
+* overrides or cannot handle the chunksize defined below.
*/
#ifndef DRXDAP_MAX_RCHUNKSIZE
#define DRXDAP_MAX_RCHUNKSIZE 60
diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c
index b4b583f..b4c0f10 100644
--- a/drivers/media/platform/vsp1/vsp1_drm.c
+++ b/drivers/media/platform/vsp1/vsp1_drm.c
@@ -54,12 +54,11 @@
/**
* vsp1_du_setup_lif - Setup the output part of the VSP pipeline
* @dev: the VSP device
- * @width: output frame width in pixels
- * @height: output frame height in pixels
+ * @cfg: the LIF configuration
*
- * Configure the output part of VSP DRM pipeline for the given frame @width and
- * @height. This sets up formats on the BRU source pad, the WPF0 sink and source
- * pads, and the LIF sink pad.
+ * Configure the output part of VSP DRM pipeline for the given frame @cfg.width
+ * and @cfg.height. This sets up formats on the BRU source pad, the WPF0 sink
+ * and source pads, and the LIF sink pad.
*
* As the media bus code on the BRU source pad is conditioned by the
* configuration of the BRU sink 0 pad, we also set up the formats on all BRU
@@ -69,8 +68,7 @@
*
* Return 0 on success or a negative error code on failure.
*/
-int vsp1_du_setup_lif(struct device *dev, unsigned int width,
- unsigned int height)
+int vsp1_du_setup_lif(struct device *dev, const struct vsp1_du_lif_config *cfg)
{
struct vsp1_device *vsp1 = dev_get_drvdata(dev);
struct vsp1_pipeline *pipe = &vsp1->drm->pipe;
@@ -79,11 +77,8 @@
unsigned int i;
int ret;
- dev_dbg(vsp1->dev, "%s: configuring LIF with format %ux%u\n",
- __func__, width, height);
-
- if (width == 0 || height == 0) {
- /* Zero width or height means the CRTC is being disabled, stop
+ if (!cfg) {
+ /* NULL configuration means the CRTC is being disabled, stop
* the pipeline and turn the light off.
*/
ret = vsp1_pipeline_stop(pipe);
@@ -108,6 +103,9 @@
return 0;
}
+ dev_dbg(vsp1->dev, "%s: configuring LIF with format %ux%u\n",
+ __func__, cfg->width, cfg->height);
+
/* Configure the format at the BRU sinks and propagate it through the
* pipeline.
*/
@@ -117,8 +115,8 @@
for (i = 0; i < bru->entity.source_pad; ++i) {
format.pad = i;
- format.format.width = width;
- format.format.height = height;
+ format.format.width = cfg->width;
+ format.format.height = cfg->height;
format.format.code = MEDIA_BUS_FMT_ARGB8888_1X32;
format.format.field = V4L2_FIELD_NONE;
@@ -133,8 +131,8 @@
}
format.pad = bru->entity.source_pad;
- format.format.width = width;
- format.format.height = height;
+ format.format.width = cfg->width;
+ format.format.height = cfg->height;
format.format.code = MEDIA_BUS_FMT_ARGB8888_1X32;
format.format.field = V4L2_FIELD_NONE;
@@ -180,7 +178,8 @@
/* Verify that the format at the output of the pipeline matches the
* requested frame size and media bus code.
*/
- if (format.format.width != width || format.format.height != height ||
+ if (format.format.width != cfg->width ||
+ format.format.height != cfg->height ||
format.format.code != MEDIA_BUS_FMT_ARGB8888_1X32) {
dev_dbg(vsp1->dev, "%s: format mismatch\n", __func__);
return -EPIPE;
diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index 393dcca..1688893 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -436,6 +436,8 @@
return -ERESTARTSYS;
ir = irctls[iminor(inode)];
+ mutex_unlock(&lirc_dev_lock);
+
if (!ir) {
retval = -ENODEV;
goto error;
@@ -476,8 +478,6 @@
}
error:
- mutex_unlock(&lirc_dev_lock);
-
nonseekable_open(inode, file);
return retval;
diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index b109f82..ec4b25b 100644
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -176,12 +176,13 @@
{
u8 tolerance, config;
struct nvt_dev *nvt = dev->priv;
+ unsigned long flags;
int i;
/* hardcode the tolerance to 10% */
tolerance = DIV_ROUND_UP(count, 10);
- spin_lock(&nvt->lock);
+ spin_lock_irqsave(&nvt->lock, flags);
nvt_clear_cir_wake_fifo(nvt);
nvt_cir_wake_reg_write(nvt, count, CIR_WAKE_FIFO_CMP_DEEP);
@@ -203,7 +204,7 @@
nvt_cir_wake_reg_write(nvt, config, CIR_WAKE_IRCON);
- spin_unlock(&nvt->lock);
+ spin_unlock_irqrestore(&nvt->lock, flags);
}
static ssize_t wakeup_data_show(struct device *dev,
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 2424946..d845336 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -1663,6 +1663,7 @@
{
int rc;
struct rc_map *rc_map;
+ u64 rc_type;
if (!dev->map_name)
return -EINVAL;
@@ -1677,15 +1678,18 @@
if (rc)
return rc;
- if (dev->change_protocol) {
- u64 rc_type = (1ll << rc_map->rc_type);
+ rc_type = BIT_ULL(rc_map->rc_type);
+ if (dev->change_protocol) {
rc = dev->change_protocol(dev, &rc_type);
if (rc < 0)
goto out_table;
dev->enabled_protocols = rc_type;
}
+ if (dev->driver_type == RC_DRIVER_IR_RAW)
+ ir_raw_load_modules(&rc_type);
+
set_bit(EV_KEY, dev->input_dev->evbit);
set_bit(EV_REP, dev->input_dev->evbit);
set_bit(EV_MSC, dev->input_dev->evbit);
@@ -1777,12 +1781,6 @@
dev->input_name ?: "Unspecified device", path ?: "N/A");
kfree(path);
- if (dev->driver_type != RC_DRIVER_IR_RAW_TX) {
- rc = rc_setup_rx_device(dev);
- if (rc)
- goto out_dev;
- }
-
if (dev->driver_type == RC_DRIVER_IR_RAW ||
dev->driver_type == RC_DRIVER_IR_RAW_TX) {
if (!raw_init) {
@@ -1791,7 +1789,13 @@
}
rc = ir_raw_event_register(dev);
if (rc < 0)
- goto out_rx;
+ goto out_dev;
+ }
+
+ if (dev->driver_type != RC_DRIVER_IR_RAW_TX) {
+ rc = rc_setup_rx_device(dev);
+ if (rc)
+ goto out_raw;
}
/* Allow the RC sysfs nodes to be accessible */
@@ -1803,8 +1807,8 @@
return 0;
-out_rx:
- rc_free_rx_device(dev);
+out_raw:
+ ir_raw_event_unregister(dev);
out_dev:
device_del(&dev->dev);
out_unlock:
diff --git a/drivers/media/rc/serial_ir.c b/drivers/media/rc/serial_ir.c
index 923fb22..41b54e4 100644
--- a/drivers/media/rc/serial_ir.c
+++ b/drivers/media/rc/serial_ir.c
@@ -487,10 +487,69 @@
ir_raw_event_handle(serial_ir.rcdev);
}
+/* Needed by serial_ir_probe() */
+static int serial_ir_tx(struct rc_dev *dev, unsigned int *txbuf,
+ unsigned int count);
+static int serial_ir_tx_duty_cycle(struct rc_dev *dev, u32 cycle);
+static int serial_ir_tx_carrier(struct rc_dev *dev, u32 carrier);
+static int serial_ir_open(struct rc_dev *rcdev);
+static void serial_ir_close(struct rc_dev *rcdev);
+
static int serial_ir_probe(struct platform_device *dev)
{
+ struct rc_dev *rcdev;
int i, nlow, nhigh, result;
+ rcdev = devm_rc_allocate_device(&dev->dev, RC_DRIVER_IR_RAW);
+ if (!rcdev)
+ return -ENOMEM;
+
+ if (hardware[type].send_pulse && hardware[type].send_space)
+ rcdev->tx_ir = serial_ir_tx;
+ if (hardware[type].set_send_carrier)
+ rcdev->s_tx_carrier = serial_ir_tx_carrier;
+ if (hardware[type].set_duty_cycle)
+ rcdev->s_tx_duty_cycle = serial_ir_tx_duty_cycle;
+
+ switch (type) {
+ case IR_HOMEBREW:
+ rcdev->input_name = "Serial IR type home-brew";
+ break;
+ case IR_IRDEO:
+ rcdev->input_name = "Serial IR type IRdeo";
+ break;
+ case IR_IRDEO_REMOTE:
+ rcdev->input_name = "Serial IR type IRdeo remote";
+ break;
+ case IR_ANIMAX:
+ rcdev->input_name = "Serial IR type AnimaX";
+ break;
+ case IR_IGOR:
+ rcdev->input_name = "Serial IR type IgorPlug";
+ break;
+ }
+
+ rcdev->input_phys = KBUILD_MODNAME "/input0";
+ rcdev->input_id.bustype = BUS_HOST;
+ rcdev->input_id.vendor = 0x0001;
+ rcdev->input_id.product = 0x0001;
+ rcdev->input_id.version = 0x0100;
+ rcdev->open = serial_ir_open;
+ rcdev->close = serial_ir_close;
+ rcdev->dev.parent = &serial_ir.pdev->dev;
+ rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER;
+ rcdev->driver_name = KBUILD_MODNAME;
+ rcdev->map_name = RC_MAP_RC6_MCE;
+ rcdev->min_timeout = 1;
+ rcdev->timeout = IR_DEFAULT_TIMEOUT;
+ rcdev->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
+ rcdev->rx_resolution = 250000;
+
+ serial_ir.rcdev = rcdev;
+
+ setup_timer(&serial_ir.timeout_timer, serial_ir_timeout,
+ (unsigned long)&serial_ir);
+
result = devm_request_irq(&dev->dev, irq, serial_ir_irq_handler,
share_irq ? IRQF_SHARED : 0,
KBUILD_MODNAME, &hardware);
@@ -516,9 +575,6 @@
return -EBUSY;
}
- setup_timer(&serial_ir.timeout_timer, serial_ir_timeout,
- (unsigned long)&serial_ir);
-
result = hardware_init_port();
if (result < 0)
return result;
@@ -552,7 +608,8 @@
sense ? "low" : "high");
dev_dbg(&dev->dev, "Interrupt %d, port %04x obtained\n", irq, io);
- return 0;
+
+ return devm_rc_register_device(&dev->dev, rcdev);
}
static int serial_ir_open(struct rc_dev *rcdev)
@@ -723,7 +780,6 @@
static int __init serial_ir_init_module(void)
{
- struct rc_dev *rcdev;
int result;
switch (type) {
@@ -754,63 +810,9 @@
sense = !!sense;
result = serial_ir_init();
- if (result)
- return result;
-
- rcdev = devm_rc_allocate_device(&serial_ir.pdev->dev, RC_DRIVER_IR_RAW);
- if (!rcdev) {
- result = -ENOMEM;
- goto serial_cleanup;
- }
-
- if (hardware[type].send_pulse && hardware[type].send_space)
- rcdev->tx_ir = serial_ir_tx;
- if (hardware[type].set_send_carrier)
- rcdev->s_tx_carrier = serial_ir_tx_carrier;
- if (hardware[type].set_duty_cycle)
- rcdev->s_tx_duty_cycle = serial_ir_tx_duty_cycle;
-
- switch (type) {
- case IR_HOMEBREW:
- rcdev->input_name = "Serial IR type home-brew";
- break;
- case IR_IRDEO:
- rcdev->input_name = "Serial IR type IRdeo";
- break;
- case IR_IRDEO_REMOTE:
- rcdev->input_name = "Serial IR type IRdeo remote";
- break;
- case IR_ANIMAX:
- rcdev->input_name = "Serial IR type AnimaX";
- break;
- case IR_IGOR:
- rcdev->input_name = "Serial IR type IgorPlug";
- break;
- }
-
- rcdev->input_phys = KBUILD_MODNAME "/input0";
- rcdev->input_id.bustype = BUS_HOST;
- rcdev->input_id.vendor = 0x0001;
- rcdev->input_id.product = 0x0001;
- rcdev->input_id.version = 0x0100;
- rcdev->open = serial_ir_open;
- rcdev->close = serial_ir_close;
- rcdev->dev.parent = &serial_ir.pdev->dev;
- rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER;
- rcdev->driver_name = KBUILD_MODNAME;
- rcdev->map_name = RC_MAP_RC6_MCE;
- rcdev->min_timeout = 1;
- rcdev->timeout = IR_DEFAULT_TIMEOUT;
- rcdev->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
- rcdev->rx_resolution = 250000;
-
- serial_ir.rcdev = rcdev;
-
- result = rc_register_device(rcdev);
-
if (!result)
return 0;
-serial_cleanup:
+
serial_ir_exit();
return result;
}
@@ -818,7 +820,6 @@
static void __exit serial_ir_exit_module(void)
{
del_timer_sync(&serial_ir.timeout_timer);
- rc_unregister_device(serial_ir.rcdev);
serial_ir_exit();
}
diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
index 6ca502d..4f42d57 100644
--- a/drivers/media/usb/dvb-usb/dw2102.c
+++ b/drivers/media/usb/dvb-usb/dw2102.c
@@ -68,6 +68,7 @@
struct dw2102_state {
u8 initialized;
u8 last_lock;
+ u8 data[MAX_XFER_SIZE + 4];
struct i2c_client *i2c_client_demod;
struct i2c_client *i2c_client_tuner;
@@ -661,62 +662,72 @@
int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
- u8 obuf[0x40], ibuf[0x40];
+ struct dw2102_state *state;
if (!d)
return -ENODEV;
+
+ state = d->priv;
+
if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
return -EAGAIN;
+ if (mutex_lock_interruptible(&d->data_mutex) < 0) {
+ mutex_unlock(&d->i2c_mutex);
+ return -EAGAIN;
+ }
switch (num) {
case 1:
switch (msg[0].addr) {
case SU3000_STREAM_CTRL:
- obuf[0] = msg[0].buf[0] + 0x36;
- obuf[1] = 3;
- obuf[2] = 0;
- if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 0, 0) < 0)
+ state->data[0] = msg[0].buf[0] + 0x36;
+ state->data[1] = 3;
+ state->data[2] = 0;
+ if (dvb_usb_generic_rw(d, state->data, 3,
+ state->data, 0, 0) < 0)
err("i2c transfer failed.");
break;
case DW2102_RC_QUERY:
- obuf[0] = 0x10;
- if (dvb_usb_generic_rw(d, obuf, 1, ibuf, 2, 0) < 0)
+ state->data[0] = 0x10;
+ if (dvb_usb_generic_rw(d, state->data, 1,
+ state->data, 2, 0) < 0)
err("i2c transfer failed.");
- msg[0].buf[1] = ibuf[0];
- msg[0].buf[0] = ibuf[1];
+ msg[0].buf[1] = state->data[0];
+ msg[0].buf[0] = state->data[1];
break;
default:
/* always i2c write*/
- obuf[0] = 0x08;
- obuf[1] = msg[0].addr;
- obuf[2] = msg[0].len;
+ state->data[0] = 0x08;
+ state->data[1] = msg[0].addr;
+ state->data[2] = msg[0].len;
- memcpy(&obuf[3], msg[0].buf, msg[0].len);
+ memcpy(&state->data[3], msg[0].buf, msg[0].len);
- if (dvb_usb_generic_rw(d, obuf, msg[0].len + 3,
- ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, msg[0].len + 3,
+ state->data, 1, 0) < 0)
err("i2c transfer failed.");
}
break;
case 2:
/* always i2c read */
- obuf[0] = 0x09;
- obuf[1] = msg[0].len;
- obuf[2] = msg[1].len;
- obuf[3] = msg[0].addr;
- memcpy(&obuf[4], msg[0].buf, msg[0].len);
+ state->data[0] = 0x09;
+ state->data[1] = msg[0].len;
+ state->data[2] = msg[1].len;
+ state->data[3] = msg[0].addr;
+ memcpy(&state->data[4], msg[0].buf, msg[0].len);
- if (dvb_usb_generic_rw(d, obuf, msg[0].len + 4,
- ibuf, msg[1].len + 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, msg[0].len + 4,
+ state->data, msg[1].len + 1, 0) < 0)
err("i2c transfer failed.");
- memcpy(msg[1].buf, &ibuf[1], msg[1].len);
+ memcpy(msg[1].buf, &state->data[1], msg[1].len);
break;
default:
warn("more than 2 i2c messages at a time is not handled yet.");
break;
}
+ mutex_unlock(&d->data_mutex);
mutex_unlock(&d->i2c_mutex);
return num;
}
@@ -844,17 +855,23 @@
static int su3000_power_ctrl(struct dvb_usb_device *d, int i)
{
struct dw2102_state *state = (struct dw2102_state *)d->priv;
- u8 obuf[] = {0xde, 0};
+ int ret = 0;
info("%s: %d, initialized %d", __func__, i, state->initialized);
if (i && !state->initialized) {
+ mutex_lock(&d->data_mutex);
+
+ state->data[0] = 0xde;
+ state->data[1] = 0;
+
state->initialized = 1;
/* reset board */
- return dvb_usb_generic_rw(d, obuf, 2, NULL, 0, 0);
+ ret = dvb_usb_generic_rw(d, state->data, 2, NULL, 0, 0);
+ mutex_unlock(&d->data_mutex);
}
- return 0;
+ return ret;
}
static int su3000_read_mac_address(struct dvb_usb_device *d, u8 mac[6])
@@ -1309,49 +1326,57 @@
return 0;
}
-static int su3000_frontend_attach(struct dvb_usb_adapter *d)
+static int su3000_frontend_attach(struct dvb_usb_adapter *adap)
{
- u8 obuf[3] = { 0xe, 0x80, 0 };
- u8 ibuf[] = { 0 };
+ struct dvb_usb_device *d = adap->dev;
+ struct dw2102_state *state = d->priv;
- if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+ mutex_lock(&d->data_mutex);
+
+ state->data[0] = 0xe;
+ state->data[1] = 0x80;
+ state->data[2] = 0;
+
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
- obuf[0] = 0xe;
- obuf[1] = 0x02;
- obuf[2] = 1;
+ state->data[0] = 0xe;
+ state->data[1] = 0x02;
+ state->data[2] = 1;
- if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
msleep(300);
- obuf[0] = 0xe;
- obuf[1] = 0x83;
- obuf[2] = 0;
+ state->data[0] = 0xe;
+ state->data[1] = 0x83;
+ state->data[2] = 0;
- if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
- obuf[0] = 0xe;
- obuf[1] = 0x83;
- obuf[2] = 1;
+ state->data[0] = 0xe;
+ state->data[1] = 0x83;
+ state->data[2] = 1;
- if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
- obuf[0] = 0x51;
+ state->data[0] = 0x51;
- if (dvb_usb_generic_rw(d->dev, obuf, 1, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0)
err("command 0x51 transfer failed.");
- d->fe_adap[0].fe = dvb_attach(ds3000_attach, &su3000_ds3000_config,
- &d->dev->i2c_adap);
- if (d->fe_adap[0].fe == NULL)
+ mutex_unlock(&d->data_mutex);
+
+ adap->fe_adap[0].fe = dvb_attach(ds3000_attach, &su3000_ds3000_config,
+ &d->i2c_adap);
+ if (adap->fe_adap[0].fe == NULL)
return -EIO;
- if (dvb_attach(ts2020_attach, d->fe_adap[0].fe,
+ if (dvb_attach(ts2020_attach, adap->fe_adap[0].fe,
&dw2104_ts2020_config,
- &d->dev->i2c_adap)) {
+ &d->i2c_adap)) {
info("Attached DS3000/TS2020!");
return 0;
}
@@ -1360,47 +1385,55 @@
return -EIO;
}
-static int t220_frontend_attach(struct dvb_usb_adapter *d)
+static int t220_frontend_attach(struct dvb_usb_adapter *adap)
{
- u8 obuf[3] = { 0xe, 0x87, 0 };
- u8 ibuf[] = { 0 };
+ struct dvb_usb_device *d = adap->dev;
+ struct dw2102_state *state = d->priv;
- if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+ mutex_lock(&d->data_mutex);
+
+ state->data[0] = 0xe;
+ state->data[1] = 0x87;
+ state->data[2] = 0x0;
+
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
- obuf[0] = 0xe;
- obuf[1] = 0x86;
- obuf[2] = 1;
+ state->data[0] = 0xe;
+ state->data[1] = 0x86;
+ state->data[2] = 1;
- if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
- obuf[0] = 0xe;
- obuf[1] = 0x80;
- obuf[2] = 0;
+ state->data[0] = 0xe;
+ state->data[1] = 0x80;
+ state->data[2] = 0;
- if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
msleep(50);
- obuf[0] = 0xe;
- obuf[1] = 0x80;
- obuf[2] = 1;
+ state->data[0] = 0xe;
+ state->data[1] = 0x80;
+ state->data[2] = 1;
- if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
- obuf[0] = 0x51;
+ state->data[0] = 0x51;
- if (dvb_usb_generic_rw(d->dev, obuf, 1, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0)
err("command 0x51 transfer failed.");
- d->fe_adap[0].fe = dvb_attach(cxd2820r_attach, &cxd2820r_config,
- &d->dev->i2c_adap, NULL);
- if (d->fe_adap[0].fe != NULL) {
- if (dvb_attach(tda18271_attach, d->fe_adap[0].fe, 0x60,
- &d->dev->i2c_adap, &tda18271_config)) {
+ mutex_unlock(&d->data_mutex);
+
+ adap->fe_adap[0].fe = dvb_attach(cxd2820r_attach, &cxd2820r_config,
+ &d->i2c_adap, NULL);
+ if (adap->fe_adap[0].fe != NULL) {
+ if (dvb_attach(tda18271_attach, adap->fe_adap[0].fe, 0x60,
+ &d->i2c_adap, &tda18271_config)) {
info("Attached TDA18271HD/CXD2820R!");
return 0;
}
@@ -1410,23 +1443,30 @@
return -EIO;
}
-static int m88rs2000_frontend_attach(struct dvb_usb_adapter *d)
+static int m88rs2000_frontend_attach(struct dvb_usb_adapter *adap)
{
- u8 obuf[] = { 0x51 };
- u8 ibuf[] = { 0 };
+ struct dvb_usb_device *d = adap->dev;
+ struct dw2102_state *state = d->priv;
- if (dvb_usb_generic_rw(d->dev, obuf, 1, ibuf, 1, 0) < 0)
+ mutex_lock(&d->data_mutex);
+
+ state->data[0] = 0x51;
+
+ if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0)
err("command 0x51 transfer failed.");
- d->fe_adap[0].fe = dvb_attach(m88rs2000_attach, &s421_m88rs2000_config,
- &d->dev->i2c_adap);
+ mutex_unlock(&d->data_mutex);
- if (d->fe_adap[0].fe == NULL)
+ adap->fe_adap[0].fe = dvb_attach(m88rs2000_attach,
+ &s421_m88rs2000_config,
+ &d->i2c_adap);
+
+ if (adap->fe_adap[0].fe == NULL)
return -EIO;
- if (dvb_attach(ts2020_attach, d->fe_adap[0].fe,
+ if (dvb_attach(ts2020_attach, adap->fe_adap[0].fe,
&dw2104_ts2020_config,
- &d->dev->i2c_adap)) {
+ &d->i2c_adap)) {
info("Attached RS2000/TS2020!");
return 0;
}
@@ -1439,44 +1479,50 @@
{
struct dvb_usb_device *d = adap->dev;
struct dw2102_state *state = d->priv;
- u8 obuf[3] = { 0xe, 0x80, 0 };
- u8 ibuf[] = { 0 };
struct i2c_adapter *i2c_adapter;
struct i2c_client *client;
struct i2c_board_info board_info;
struct m88ds3103_platform_data m88ds3103_pdata = {};
struct ts2020_config ts2020_config = {};
- if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0)
+ mutex_lock(&d->data_mutex);
+
+ state->data[0] = 0xe;
+ state->data[1] = 0x80;
+ state->data[2] = 0x0;
+
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
- obuf[0] = 0xe;
- obuf[1] = 0x02;
- obuf[2] = 1;
+ state->data[0] = 0xe;
+ state->data[1] = 0x02;
+ state->data[2] = 1;
- if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
msleep(300);
- obuf[0] = 0xe;
- obuf[1] = 0x83;
- obuf[2] = 0;
+ state->data[0] = 0xe;
+ state->data[1] = 0x83;
+ state->data[2] = 0;
- if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
- obuf[0] = 0xe;
- obuf[1] = 0x83;
- obuf[2] = 1;
+ state->data[0] = 0xe;
+ state->data[1] = 0x83;
+ state->data[2] = 1;
- if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
err("command 0x0e transfer failed.");
- obuf[0] = 0x51;
+ state->data[0] = 0x51;
- if (dvb_usb_generic_rw(d, obuf, 1, ibuf, 1, 0) < 0)
+ if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0)
err("command 0x51 transfer failed.");
+ mutex_unlock(&d->data_mutex);
+
/* attach demod */
m88ds3103_pdata.clk = 27000000;
m88ds3103_pdata.i2c_wr_max = 33;
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c
index 6fb773d..93be82f 100644
--- a/drivers/misc/sgi-gru/grufault.c
+++ b/drivers/misc/sgi-gru/grufault.c
@@ -219,15 +219,20 @@
int write, unsigned long *paddr, int *pageshift)
{
pgd_t *pgdp;
- pmd_t *pmdp;
+ p4d_t *p4dp;
pud_t *pudp;
+ pmd_t *pmdp;
pte_t pte;
pgdp = pgd_offset(vma->vm_mm, vaddr);
if (unlikely(pgd_none(*pgdp)))
goto err;
- pudp = pud_offset(pgdp, vaddr);
+ p4dp = p4d_offset(pgdp, vaddr);
+ if (unlikely(p4d_none(*p4dp)))
+ goto err;
+
+ pudp = pud_offset(p4dp, vaddr);
if (unlikely(pud_none(*pudp)))
goto err;
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 1ae872b..747645c 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -186,7 +186,7 @@
}
/*
- * Send write disble instruction to the chip.
+ * Send write disable instruction to the chip.
*/
static inline int write_disable(struct spi_nor *nor)
{
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge.h b/drivers/net/ethernet/qlogic/qlge/qlge.h
index 6d31f92..84ac50f 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge.h
+++ b/drivers/net/ethernet/qlogic/qlge/qlge.h
@@ -1162,8 +1162,8 @@
struct ib_mac_iocb_rsp {
u8 opcode; /* 0x20 */
u8 flags1;
-#define IB_MAC_IOCB_RSP_OI 0x01 /* Overide intr delay */
-#define IB_MAC_IOCB_RSP_I 0x02 /* Disble Intr Generation */
+#define IB_MAC_IOCB_RSP_OI 0x01 /* Override intr delay */
+#define IB_MAC_IOCB_RSP_I 0x02 /* Disable Intr Generation */
#define IB_MAC_CSUM_ERR_MASK 0x1c /* A mask to use for csum errs */
#define IB_MAC_IOCB_RSP_TE 0x04 /* Checksum error */
#define IB_MAC_IOCB_RSP_NU 0x08 /* No checksum rcvd */
diff --git a/drivers/pci/dwc/pci-exynos.c b/drivers/pci/dwc/pci-exynos.c
index 993b650..44f774c 100644
--- a/drivers/pci/dwc/pci-exynos.c
+++ b/drivers/pci/dwc/pci-exynos.c
@@ -132,10 +132,6 @@
struct device *dev = pci->dev;
struct resource *res;
- /* If using the PHY framework, doesn't need to get other resource */
- if (ep->using_phy)
- return 0;
-
ep->mem_res = devm_kzalloc(dev, sizeof(*ep->mem_res), GFP_KERNEL);
if (!ep->mem_res)
return -ENOMEM;
@@ -145,6 +141,10 @@
if (IS_ERR(ep->mem_res->elbi_base))
return PTR_ERR(ep->mem_res->elbi_base);
+ /* If using the PHY framework, doesn't need to get other resource */
+ if (ep->using_phy)
+ return 0;
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
ep->mem_res->phy_base = devm_ioremap_resource(dev, res);
if (IS_ERR(ep->mem_res->phy_base))
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 973472c..1dfa10c 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -478,7 +478,7 @@
static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
{
- struct pci_dev *child, *parent = link->pdev;
+ struct pci_dev *child = link->downstream, *parent = link->pdev;
struct pci_bus *linkbus = parent->subordinate;
struct aspm_register_info upreg, dwreg;
@@ -491,9 +491,7 @@
/* Get upstream/downstream components' register state */
pcie_get_aspm_reg(parent, &upreg);
- child = pci_function_0(linkbus);
pcie_get_aspm_reg(child, &dwreg);
- link->downstream = child;
/*
* If ASPM not supported, don't mess with the clocks and link,
@@ -800,6 +798,7 @@
INIT_LIST_HEAD(&link->children);
INIT_LIST_HEAD(&link->link);
link->pdev = pdev;
+ link->downstream = pci_function_0(pdev->subordinate);
/*
* Root Ports and PCI/PCI-X to PCIe Bridges are roots of PCIe
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f754453..6736836 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2174,6 +2174,7 @@
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LSI_LOGIC, 0x005f, quirk_blacklist_vpd);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, PCI_ANY_ID,
quirk_blacklist_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_QLOGIC, 0x2261, quirk_blacklist_vpd);
/*
* For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c
index 109e2c9..95d8f25 100644
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -6278,7 +6278,7 @@
* does not disable its parity logic prior to
* the start of the reset. This may cause a
* parity error to be detected and thus a
- * spurious SERR or PERR assertion. Disble
+ * spurious SERR or PERR assertion. Disable
* PERR and SERR responses during the CHIPRST.
*/
mod_cmd = cmd & ~(PCIM_CMD_PERRESPEN|PCIM_CMD_SERRESPEN);
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index c7839f6..d277e86 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3075,23 +3075,6 @@
put_device(&sdkp->dev);
}
-struct sd_devt {
- int idx;
- struct disk_devt disk_devt;
-};
-
-static void sd_devt_release(struct disk_devt *disk_devt)
-{
- struct sd_devt *sd_devt = container_of(disk_devt, struct sd_devt,
- disk_devt);
-
- spin_lock(&sd_index_lock);
- ida_remove(&sd_index_ida, sd_devt->idx);
- spin_unlock(&sd_index_lock);
-
- kfree(sd_devt);
-}
-
/**
* sd_probe - called during driver initialization and whenever a
* new scsi device is attached to the system. It is called once
@@ -3113,7 +3096,6 @@
static int sd_probe(struct device *dev)
{
struct scsi_device *sdp = to_scsi_device(dev);
- struct sd_devt *sd_devt;
struct scsi_disk *sdkp;
struct gendisk *gd;
int index;
@@ -3139,13 +3121,9 @@
if (!sdkp)
goto out;
- sd_devt = kzalloc(sizeof(*sd_devt), GFP_KERNEL);
- if (!sd_devt)
- goto out_free;
-
gd = alloc_disk(SD_MINORS);
if (!gd)
- goto out_free_devt;
+ goto out_free;
do {
if (!ida_pre_get(&sd_index_ida, GFP_KERNEL))
@@ -3161,11 +3139,6 @@
goto out_put;
}
- atomic_set(&sd_devt->disk_devt.count, 1);
- sd_devt->disk_devt.release = sd_devt_release;
- sd_devt->idx = index;
- gd->disk_devt = &sd_devt->disk_devt;
-
error = sd_format_disk_name("sd", index, gd->disk_name, DISK_NAME_LEN);
if (error) {
sdev_printk(KERN_WARNING, sdp, "SCSI disk (sd) name length exceeded.\n");
@@ -3205,12 +3178,11 @@
return 0;
out_free_index:
- put_disk_devt(&sd_devt->disk_devt);
- sd_devt = NULL;
+ spin_lock(&sd_index_lock);
+ ida_remove(&sd_index_ida, index);
+ spin_unlock(&sd_index_lock);
out_put:
put_disk(gd);
- out_free_devt:
- kfree(sd_devt);
out_free:
kfree(sdkp);
out:
@@ -3271,7 +3243,10 @@
struct scsi_disk *sdkp = to_scsi_disk(dev);
struct gendisk *disk = sdkp->disk;
- put_disk_devt(disk->disk_devt);
+ spin_lock(&sd_index_lock);
+ ida_remove(&sd_index_ida, sdkp->index);
+ spin_unlock(&sd_index_lock);
+
disk->private_data = NULL;
put_disk(disk);
put_device(&sdkp->device->sdev_gendev);
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index a2615d6..79a2d8f 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -84,8 +84,7 @@
/* /dev/gadget/$CHIP represents ep0 and the whole device */
enum ep0_state {
- /* DISBLED is the initial state.
- */
+ /* DISABLED is the initial state. */
STATE_DEV_DISABLED = 0,
/* Only one open() of /dev/gadget/$CHIP; only one file tracks
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 6d6c460..50aee8b 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -868,7 +868,7 @@
spin_lock_irqsave(&xhci->lock, flags);
- /* disble usb3 ports Wake bits*/
+ /* disable usb3 ports Wake bits */
port_index = xhci->num_usb3_ports;
port_array = xhci->usb3_ports;
while (port_index--) {
@@ -879,7 +879,7 @@
writel(t2, port_array[port_index]);
}
- /* disble usb2 ports Wake bits*/
+ /* disable usb2 ports Wake bits */
port_index = xhci->num_usb2_ports;
port_array = xhci->usb2_ports;
while (port_index--) {
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index f8afc6d..e8cef1a 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -681,3 +681,50 @@
return 0;
}
EXPORT_SYMBOL_GPL(xen_swiotlb_set_dma_mask);
+
+/*
+ * Create userspace mapping for the DMA-coherent memory.
+ * This function should be called with the pages from the current domain only,
+ * passing pages mapped from other domains would lead to memory corruption.
+ */
+int
+xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr, size_t size,
+ unsigned long attrs)
+{
+#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
+ if (__generic_dma_ops(dev)->mmap)
+ return __generic_dma_ops(dev)->mmap(dev, vma, cpu_addr,
+ dma_addr, size, attrs);
+#endif
+ return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
+}
+EXPORT_SYMBOL_GPL(xen_swiotlb_dma_mmap);
+
+/*
+ * This function should be called with the pages from the current domain only,
+ * passing pages mapped from other domains would lead to memory corruption.
+ */
+int
+xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t handle, size_t size,
+ unsigned long attrs)
+{
+#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
+ if (__generic_dma_ops(dev)->get_sgtable) {
+#if 0
+ /*
+ * This check verifies that the page belongs to the current domain and
+ * is not one mapped from another domain.
+ * This check is for debug only, and should not go to production build
+ */
+ unsigned long bfn = PHYS_PFN(dma_to_phys(dev, handle));
+ BUG_ON (!page_is_ram(bfn));
+#endif
+ return __generic_dma_ops(dev)->get_sgtable(dev, sgt, cpu_addr,
+ handle, size, attrs);
+ }
+#endif
+ return dma_common_get_sgtable(dev, sgt, cpu_addr, handle, size);
+}
+EXPORT_SYMBOL_GPL(xen_swiotlb_get_sgtable);
diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c
index 4d343ee..1f4733b 100644
--- a/drivers/xen/xenbus/xenbus_dev_frontend.c
+++ b/drivers/xen/xenbus/xenbus_dev_frontend.c
@@ -55,7 +55,6 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/miscdevice.h>
-#include <linux/init.h>
#include <xen/xenbus.h>
#include <xen/xen.h>
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 338d2f7..a2c05f2 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1359,6 +1359,16 @@
return 0;
}
+static void fat_dummy_inode_init(struct inode *inode)
+{
+ /* Initialize this dummy inode to work as no-op. */
+ MSDOS_I(inode)->mmu_private = 0;
+ MSDOS_I(inode)->i_start = 0;
+ MSDOS_I(inode)->i_logstart = 0;
+ MSDOS_I(inode)->i_attrs = 0;
+ MSDOS_I(inode)->i_pos = 0;
+}
+
static int fat_read_root(struct inode *inode)
{
struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
@@ -1803,12 +1813,13 @@
fat_inode = new_inode(sb);
if (!fat_inode)
goto out_fail;
- MSDOS_I(fat_inode)->i_pos = 0;
+ fat_dummy_inode_init(fat_inode);
sbi->fat_inode = fat_inode;
fsinfo_inode = new_inode(sb);
if (!fsinfo_inode)
goto out_fail;
+ fat_dummy_inode_init(fsinfo_inode);
fsinfo_inode->i_ino = MSDOS_FSINFO_INO;
sbi->fsinfo_inode = fsinfo_inode;
insert_inode_hash(fsinfo_inode);
diff --git a/fs/iomap.c b/fs/iomap.c
index 3ca1a8e..141c3cd 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -846,7 +846,8 @@
struct address_space *mapping = iocb->ki_filp->f_mapping;
struct inode *inode = file_inode(iocb->ki_filp);
size_t count = iov_iter_count(iter);
- loff_t pos = iocb->ki_pos, end = iocb->ki_pos + count - 1, ret = 0;
+ loff_t pos = iocb->ki_pos, start = pos;
+ loff_t end = iocb->ki_pos + count - 1, ret = 0;
unsigned int flags = IOMAP_DIRECT;
struct blk_plug plug;
struct iomap_dio *dio;
@@ -887,12 +888,12 @@
}
if (mapping->nrpages) {
- ret = filemap_write_and_wait_range(mapping, iocb->ki_pos, end);
+ ret = filemap_write_and_wait_range(mapping, start, end);
if (ret)
goto out_free_dio;
ret = invalidate_inode_pages2_range(mapping,
- iocb->ki_pos >> PAGE_SHIFT, end >> PAGE_SHIFT);
+ start >> PAGE_SHIFT, end >> PAGE_SHIFT);
WARN_ON_ONCE(ret);
ret = 0;
}
@@ -941,6 +942,8 @@
__set_current_state(TASK_RUNNING);
}
+ ret = iomap_dio_complete(dio);
+
/*
* Try again to invalidate clean pages which might have been cached by
* non-direct readahead, or faulted in by get_user_pages() if the source
@@ -949,12 +952,12 @@
* this invalidation fails, tough, the write still worked...
*/
if (iov_iter_rw(iter) == WRITE && mapping->nrpages) {
- ret = invalidate_inode_pages2_range(mapping,
- iocb->ki_pos >> PAGE_SHIFT, end >> PAGE_SHIFT);
- WARN_ON_ONCE(ret);
+ int err = invalidate_inode_pages2_range(mapping,
+ start >> PAGE_SHIFT, end >> PAGE_SHIFT);
+ WARN_ON_ONCE(err);
}
- return iomap_dio_complete(dio);
+ return ret;
out_free_dio:
kfree(dio);
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index 1953986..6e610a2 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -12,7 +12,6 @@
#include <linux/slab.h>
#include <linux/cred.h>
#include <linux/xattr.h>
-#include <linux/sched/signal.h>
#include "overlayfs.h"
#include "ovl_entry.h"
diff --git a/fs/timerfd.c b/fs/timerfd.c
index 384fa75..c543cdb 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -400,9 +400,9 @@
clockid != CLOCK_BOOTTIME_ALARM))
return -EINVAL;
- if (!capable(CAP_WAKE_ALARM) &&
- (clockid == CLOCK_REALTIME_ALARM ||
- clockid == CLOCK_BOOTTIME_ALARM))
+ if ((clockid == CLOCK_REALTIME_ALARM ||
+ clockid == CLOCK_BOOTTIME_ALARM) &&
+ !capable(CAP_WAKE_ALARM))
return -EPERM;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
@@ -449,7 +449,7 @@
return ret;
ctx = f.file->private_data;
- if (!capable(CAP_WAKE_ALARM) && isalarm(ctx)) {
+ if (isalarm(ctx) && !capable(CAP_WAKE_ALARM)) {
fdput(f);
return -EPERM;
}
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 973607d..1d227b0 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -138,8 +138,6 @@
* userfaultfd_ctx_get - Acquires a reference to the internal userfaultfd
* context.
* @ctx: [in] Pointer to the userfaultfd context.
- *
- * Returns: In case of success, returns not zero.
*/
static void userfaultfd_ctx_get(struct userfaultfd_ctx *ctx)
{
@@ -267,6 +265,7 @@
{
struct mm_struct *mm = ctx->mm;
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd, _pmd;
pte_t *pte;
@@ -277,7 +276,10 @@
pgd = pgd_offset(mm, address);
if (!pgd_present(*pgd))
goto out;
- pud = pud_offset(pgd, address);
+ p4d = p4d_offset(pgd, address);
+ if (!p4d_present(*p4d))
+ goto out;
+ pud = pud_offset(p4d, address);
if (!pud_present(*pud))
goto out;
pmd = pmd_offset(pud, address);
@@ -490,7 +492,7 @@
* in such case.
*/
down_read(&mm->mmap_sem);
- ret = 0;
+ ret = VM_FAULT_NOPAGE;
}
}
@@ -527,10 +529,11 @@
return ret;
}
-static int userfaultfd_event_wait_completion(struct userfaultfd_ctx *ctx,
- struct userfaultfd_wait_queue *ewq)
+static void userfaultfd_event_wait_completion(struct userfaultfd_ctx *ctx,
+ struct userfaultfd_wait_queue *ewq)
{
- int ret = 0;
+ if (WARN_ON_ONCE(current->flags & PF_EXITING))
+ goto out;
ewq->ctx = ctx;
init_waitqueue_entry(&ewq->wq, current);
@@ -547,8 +550,16 @@
break;
if (ACCESS_ONCE(ctx->released) ||
fatal_signal_pending(current)) {
- ret = -1;
__remove_wait_queue(&ctx->event_wqh, &ewq->wq);
+ if (ewq->msg.event == UFFD_EVENT_FORK) {
+ struct userfaultfd_ctx *new;
+
+ new = (struct userfaultfd_ctx *)
+ (unsigned long)
+ ewq->msg.arg.reserved.reserved1;
+
+ userfaultfd_ctx_put(new);
+ }
break;
}
@@ -566,9 +577,8 @@
* ctx may go away after this if the userfault pseudo fd is
* already released.
*/
-
+out:
userfaultfd_ctx_put(ctx);
- return ret;
}
static void userfaultfd_event_complete(struct userfaultfd_ctx *ctx,
@@ -626,7 +636,7 @@
return 0;
}
-static int dup_fctx(struct userfaultfd_fork_ctx *fctx)
+static void dup_fctx(struct userfaultfd_fork_ctx *fctx)
{
struct userfaultfd_ctx *ctx = fctx->orig;
struct userfaultfd_wait_queue ewq;
@@ -636,17 +646,15 @@
ewq.msg.event = UFFD_EVENT_FORK;
ewq.msg.arg.reserved.reserved1 = (unsigned long)fctx->new;
- return userfaultfd_event_wait_completion(ctx, &ewq);
+ userfaultfd_event_wait_completion(ctx, &ewq);
}
void dup_userfaultfd_complete(struct list_head *fcs)
{
- int ret = 0;
struct userfaultfd_fork_ctx *fctx, *n;
list_for_each_entry_safe(fctx, n, fcs, list) {
- if (!ret)
- ret = dup_fctx(fctx);
+ dup_fctx(fctx);
list_del(&fctx->list);
kfree(fctx);
}
@@ -689,8 +697,7 @@
userfaultfd_event_wait_completion(ctx, &ewq);
}
-void userfaultfd_remove(struct vm_area_struct *vma,
- struct vm_area_struct **prev,
+bool userfaultfd_remove(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
struct mm_struct *mm = vma->vm_mm;
@@ -699,13 +706,11 @@
ctx = vma->vm_userfaultfd_ctx.ctx;
if (!ctx || !(ctx->features & UFFD_FEATURE_EVENT_REMOVE))
- return;
+ return true;
userfaultfd_ctx_get(ctx);
up_read(&mm->mmap_sem);
- *prev = NULL; /* We wait for ACK w/o the mmap semaphore */
-
msg_init(&ewq.msg);
ewq.msg.event = UFFD_EVENT_REMOVE;
@@ -714,7 +719,7 @@
userfaultfd_event_wait_completion(ctx, &ewq);
- down_read(&mm->mmap_sem);
+ return false;
}
static bool has_unmap_ctx(struct userfaultfd_ctx *ctx, struct list_head *unmaps,
@@ -775,34 +780,6 @@
}
}
-void userfaultfd_exit(struct mm_struct *mm)
-{
- struct vm_area_struct *vma = mm->mmap;
-
- /*
- * We can do the vma walk without locking because the caller
- * (exit_mm) knows it now has exclusive access
- */
- while (vma) {
- struct userfaultfd_ctx *ctx = vma->vm_userfaultfd_ctx.ctx;
-
- if (ctx && (ctx->features & UFFD_FEATURE_EVENT_EXIT)) {
- struct userfaultfd_wait_queue ewq;
-
- userfaultfd_ctx_get(ctx);
-
- msg_init(&ewq.msg);
- ewq.msg.event = UFFD_EVENT_EXIT;
-
- userfaultfd_event_wait_completion(ctx, &ewq);
-
- ctx->features &= ~UFFD_FEATURE_EVENT_EXIT;
- }
-
- vma = vma->vm_next;
- }
-}
-
static int userfaultfd_release(struct inode *inode, struct file *file)
{
struct userfaultfd_ctx *ctx = file->private_data;
diff --git a/fs/xfs/kmem.c b/fs/xfs/kmem.c
index 2dfdc62..70a5b55 100644
--- a/fs/xfs/kmem.c
+++ b/fs/xfs/kmem.c
@@ -25,24 +25,6 @@
#include "kmem.h"
#include "xfs_message.h"
-/*
- * Greedy allocation. May fail and may return vmalloced memory.
- */
-void *
-kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize)
-{
- void *ptr;
- size_t kmsize = maxsize;
-
- while (!(ptr = vzalloc(kmsize))) {
- if ((kmsize >>= 1) <= minsize)
- kmsize = minsize;
- }
- if (ptr)
- *size = kmsize;
- return ptr;
-}
-
void *
kmem_alloc(size_t size, xfs_km_flags_t flags)
{
diff --git a/fs/xfs/kmem.h b/fs/xfs/kmem.h
index 689f746..f0fc84f 100644
--- a/fs/xfs/kmem.h
+++ b/fs/xfs/kmem.h
@@ -69,8 +69,6 @@
}
-extern void *kmem_zalloc_greedy(size_t *, size_t, size_t);
-
static inline void *
kmem_zalloc(size_t size, xfs_km_flags_t flags)
{
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index a9c66d4..9bd104f 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -763,8 +763,8 @@
args.type = XFS_ALLOCTYPE_START_BNO;
args.fsbno = XFS_INO_TO_FSB(mp, ip->i_ino);
} else if (dfops->dop_low) {
-try_another_ag:
args.type = XFS_ALLOCTYPE_START_BNO;
+try_another_ag:
args.fsbno = *firstblock;
} else {
args.type = XFS_ALLOCTYPE_NEAR_BNO;
@@ -790,13 +790,17 @@
if (xfs_sb_version_hasreflink(&cur->bc_mp->m_sb) &&
args.fsbno == NULLFSBLOCK &&
args.type == XFS_ALLOCTYPE_NEAR_BNO) {
- dfops->dop_low = true;
+ args.type = XFS_ALLOCTYPE_FIRST_AG;
goto try_another_ag;
}
+ if (WARN_ON_ONCE(args.fsbno == NULLFSBLOCK)) {
+ xfs_iroot_realloc(ip, -1, whichfork);
+ xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+ return -ENOSPC;
+ }
/*
* Allocation can't fail, the space was reserved.
*/
- ASSERT(args.fsbno != NULLFSBLOCK);
ASSERT(*firstblock == NULLFSBLOCK ||
args.agno >= XFS_FSB_TO_AGNO(mp, *firstblock));
*firstblock = cur->bc_private.b.firstblock = args.fsbno;
@@ -4150,6 +4154,19 @@
return 0;
}
+/*
+ * Add a delayed allocation extent to an inode. Blocks are reserved from the
+ * global pool and the extent inserted into the inode in-core extent tree.
+ *
+ * On entry, got refers to the first extent beyond the offset of the extent to
+ * allocate or eof is specified if no such extent exists. On return, got refers
+ * to the extent record that was inserted to the inode fork.
+ *
+ * Note that the allocated extent may have been merged with contiguous extents
+ * during insertion into the inode fork. Thus, got does not reflect the current
+ * state of the inode fork on return. If necessary, the caller can use lastx to
+ * look up the updated record in the inode fork.
+ */
int
xfs_bmapi_reserve_delalloc(
struct xfs_inode *ip,
@@ -4236,13 +4253,8 @@
got->br_startblock = nullstartblock(indlen);
got->br_blockcount = alen;
got->br_state = XFS_EXT_NORM;
- xfs_bmap_add_extent_hole_delay(ip, whichfork, lastx, got);
- /*
- * Update our extent pointer, given that xfs_bmap_add_extent_hole_delay
- * might have merged it into one of the neighbouring ones.
- */
- xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *lastx), got);
+ xfs_bmap_add_extent_hole_delay(ip, whichfork, lastx, got);
/*
* Tag the inode if blocks were preallocated. Note that COW fork
@@ -4254,10 +4266,6 @@
if (whichfork == XFS_COW_FORK && (prealloc || aoff < off || alen > len))
xfs_inode_set_cowblocks_tag(ip);
- ASSERT(got->br_startoff <= aoff);
- ASSERT(got->br_startoff + got->br_blockcount >= aoff + alen);
- ASSERT(isnullstartblock(got->br_startblock));
- ASSERT(got->br_state == XFS_EXT_NORM);
return 0;
out_unreserve_blocks:
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c
index f93072b..fd55db4 100644
--- a/fs/xfs/libxfs/xfs_bmap_btree.c
+++ b/fs/xfs/libxfs/xfs_bmap_btree.c
@@ -447,8 +447,8 @@
if (args.fsbno == NULLFSBLOCK) {
args.fsbno = be64_to_cpu(start->l);
-try_another_ag:
args.type = XFS_ALLOCTYPE_START_BNO;
+try_another_ag:
/*
* Make sure there is sufficient room left in the AG to
* complete a full tree split for an extent insert. If
@@ -488,8 +488,8 @@
if (xfs_sb_version_hasreflink(&cur->bc_mp->m_sb) &&
args.fsbno == NULLFSBLOCK &&
args.type == XFS_ALLOCTYPE_NEAR_BNO) {
- cur->bc_private.b.dfops->dop_low = true;
args.fsbno = cur->bc_private.b.firstblock;
+ args.type = XFS_ALLOCTYPE_FIRST_AG;
goto try_another_ag;
}
@@ -506,7 +506,7 @@
goto error0;
cur->bc_private.b.dfops->dop_low = true;
}
- if (args.fsbno == NULLFSBLOCK) {
+ if (WARN_ON_ONCE(args.fsbno == NULLFSBLOCK)) {
XFS_BTREE_TRACE_CURSOR(cur, XBT_EXIT);
*stat = 0;
return 0;
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index bf65a9e..6149429 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -274,54 +274,49 @@
struct xfs_ioend *ioend =
container_of(work, struct xfs_ioend, io_work);
struct xfs_inode *ip = XFS_I(ioend->io_inode);
+ xfs_off_t offset = ioend->io_offset;
+ size_t size = ioend->io_size;
int error = ioend->io_bio->bi_error;
/*
- * Set an error if the mount has shut down and proceed with end I/O
- * processing so it can perform whatever cleanups are necessary.
+ * Just clean up the in-memory strutures if the fs has been shut down.
*/
- if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+ if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
error = -EIO;
-
- /*
- * For a CoW extent, we need to move the mapping from the CoW fork
- * to the data fork. If instead an error happened, just dump the
- * new blocks.
- */
- if (ioend->io_type == XFS_IO_COW) {
- if (error)
- goto done;
- if (ioend->io_bio->bi_error) {
- error = xfs_reflink_cancel_cow_range(ip,
- ioend->io_offset, ioend->io_size);
- goto done;
- }
- error = xfs_reflink_end_cow(ip, ioend->io_offset,
- ioend->io_size);
- if (error)
- goto done;
+ goto done;
}
/*
- * For unwritten extents we need to issue transactions to convert a
- * range to normal written extens after the data I/O has finished.
- * Detecting and handling completion IO errors is done individually
- * for each case as different cleanup operations need to be performed
- * on error.
+ * Clean up any COW blocks on an I/O error.
*/
- if (ioend->io_type == XFS_IO_UNWRITTEN) {
- if (error)
- goto done;
- error = xfs_iomap_write_unwritten(ip, ioend->io_offset,
- ioend->io_size);
- } else if (ioend->io_append_trans) {
- error = xfs_setfilesize_ioend(ioend, error);
- } else {
- ASSERT(!xfs_ioend_is_append(ioend) ||
- ioend->io_type == XFS_IO_COW);
+ if (unlikely(error)) {
+ switch (ioend->io_type) {
+ case XFS_IO_COW:
+ xfs_reflink_cancel_cow_range(ip, offset, size, true);
+ break;
+ }
+
+ goto done;
+ }
+
+ /*
+ * Success: commit the COW or unwritten blocks if needed.
+ */
+ switch (ioend->io_type) {
+ case XFS_IO_COW:
+ error = xfs_reflink_end_cow(ip, offset, size);
+ break;
+ case XFS_IO_UNWRITTEN:
+ error = xfs_iomap_write_unwritten(ip, offset, size);
+ break;
+ default:
+ ASSERT(!xfs_ioend_is_append(ioend) || ioend->io_append_trans);
+ break;
}
done:
+ if (ioend->io_append_trans)
+ error = xfs_setfilesize_ioend(ioend, error);
xfs_destroy_ioend(ioend, error);
}
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 7234b97..3531f8f 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -1608,7 +1608,7 @@
xfs_ilock(ip, XFS_IOLOCK_EXCL);
xfs_ilock(ip, XFS_MMAPLOCK_EXCL);
- ret = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF);
+ ret = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF, false);
xfs_iunlock(ip, XFS_MMAPLOCK_EXCL);
xfs_iunlock(ip, XFS_IOLOCK_EXCL);
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index edfa6a5..7eaf1ef 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1615,7 +1615,7 @@
/* Remove all pending CoW reservations. */
error = xfs_reflink_cancel_cow_blocks(ip, &tp, first_unmap_block,
- last_block);
+ last_block, true);
if (error)
goto out;
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 41662fb..288ee5b 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -630,6 +630,11 @@
goto out_unlock;
}
+ /*
+ * Flag newly allocated delalloc blocks with IOMAP_F_NEW so we punch
+ * them out if the write happens to fail.
+ */
+ iomap->flags = IOMAP_F_NEW;
trace_xfs_iomap_alloc(ip, offset, count, 0, &got);
done:
if (isnullstartblock(got.br_startblock))
@@ -1071,16 +1076,22 @@
struct xfs_inode *ip,
loff_t offset,
loff_t length,
- ssize_t written)
+ ssize_t written,
+ struct iomap *iomap)
{
struct xfs_mount *mp = ip->i_mount;
xfs_fileoff_t start_fsb;
xfs_fileoff_t end_fsb;
int error = 0;
- /* behave as if the write failed if drop writes is enabled */
- if (xfs_mp_drop_writes(mp))
+ /*
+ * Behave as if the write failed if drop writes is enabled. Set the NEW
+ * flag to force delalloc cleanup.
+ */
+ if (xfs_mp_drop_writes(mp)) {
+ iomap->flags |= IOMAP_F_NEW;
written = 0;
+ }
/*
* start_fsb refers to the first unused block after a short write. If
@@ -1094,14 +1105,14 @@
end_fsb = XFS_B_TO_FSB(mp, offset + length);
/*
- * Trim back delalloc blocks if we didn't manage to write the whole
- * range reserved.
+ * Trim delalloc blocks if they were allocated by this write and we
+ * didn't manage to write the whole range.
*
* We don't need to care about racing delalloc as we hold i_mutex
* across the reserve/allocate/unreserve calls. If there are delalloc
* blocks in the range, they are ours.
*/
- if (start_fsb < end_fsb) {
+ if ((iomap->flags & IOMAP_F_NEW) && start_fsb < end_fsb) {
truncate_pagecache_range(VFS_I(ip), XFS_FSB_TO_B(mp, start_fsb),
XFS_FSB_TO_B(mp, end_fsb) - 1);
@@ -1131,7 +1142,7 @@
{
if ((flags & IOMAP_WRITE) && iomap->type == IOMAP_DELALLOC)
return xfs_file_iomap_end_delalloc(XFS_I(inode), offset,
- length, written);
+ length, written, iomap);
return 0;
}
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 66e8817..2a6d9b1 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -361,7 +361,6 @@
xfs_agino_t agino; /* inode # in allocation group */
xfs_agnumber_t agno; /* allocation group number */
xfs_btree_cur_t *cur; /* btree cursor for ialloc btree */
- size_t irbsize; /* size of irec buffer in bytes */
xfs_inobt_rec_incore_t *irbuf; /* start of irec buffer */
int nirbuf; /* size of irbuf */
int ubcount; /* size of user's buffer */
@@ -388,11 +387,10 @@
*ubcountp = 0;
*done = 0;
- irbuf = kmem_zalloc_greedy(&irbsize, PAGE_SIZE, PAGE_SIZE * 4);
+ irbuf = kmem_zalloc_large(PAGE_SIZE * 4, KM_SLEEP);
if (!irbuf)
return -ENOMEM;
-
- nirbuf = irbsize / sizeof(*irbuf);
+ nirbuf = (PAGE_SIZE * 4) / sizeof(*irbuf);
/*
* Loop over the allocation groups, starting from the last
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 450bde6..688ebff 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -513,8 +513,7 @@
xfs_set_inoalignment(xfs_mount_t *mp)
{
if (xfs_sb_version_hasalign(&mp->m_sb) &&
- mp->m_sb.sb_inoalignmt >=
- XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size))
+ mp->m_sb.sb_inoalignmt >= xfs_icluster_size_fsb(mp))
mp->m_inoalign_mask = mp->m_sb.sb_inoalignmt - 1;
else
mp->m_inoalign_mask = 0;
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index da6d08f..4a84c5e 100644
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -548,14 +548,18 @@
}
/*
- * Cancel all pending CoW reservations for some block range of an inode.
+ * Cancel CoW reservations for some block range of an inode.
+ *
+ * If cancel_real is true this function cancels all COW fork extents for the
+ * inode; if cancel_real is false, real extents are not cleared.
*/
int
xfs_reflink_cancel_cow_blocks(
struct xfs_inode *ip,
struct xfs_trans **tpp,
xfs_fileoff_t offset_fsb,
- xfs_fileoff_t end_fsb)
+ xfs_fileoff_t end_fsb,
+ bool cancel_real)
{
struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
struct xfs_bmbt_irec got, del;
@@ -579,7 +583,7 @@
&idx, &got, &del);
if (error)
break;
- } else {
+ } else if (del.br_state == XFS_EXT_UNWRITTEN || cancel_real) {
xfs_trans_ijoin(*tpp, ip, 0);
xfs_defer_init(&dfops, &firstfsb);
@@ -621,13 +625,17 @@
}
/*
- * Cancel all pending CoW reservations for some byte range of an inode.
+ * Cancel CoW reservations for some byte range of an inode.
+ *
+ * If cancel_real is true this function cancels all COW fork extents for the
+ * inode; if cancel_real is false, real extents are not cleared.
*/
int
xfs_reflink_cancel_cow_range(
struct xfs_inode *ip,
xfs_off_t offset,
- xfs_off_t count)
+ xfs_off_t count,
+ bool cancel_real)
{
struct xfs_trans *tp;
xfs_fileoff_t offset_fsb;
@@ -653,7 +661,8 @@
xfs_trans_ijoin(tp, ip, 0);
/* Scrape out the old CoW reservations */
- error = xfs_reflink_cancel_cow_blocks(ip, &tp, offset_fsb, end_fsb);
+ error = xfs_reflink_cancel_cow_blocks(ip, &tp, offset_fsb, end_fsb,
+ cancel_real);
if (error)
goto out_cancel;
@@ -1450,7 +1459,7 @@
* We didn't find any shared blocks so turn off the reflink flag.
* First, get rid of any leftover CoW mappings.
*/
- error = xfs_reflink_cancel_cow_blocks(ip, tpp, 0, NULLFILEOFF);
+ error = xfs_reflink_cancel_cow_blocks(ip, tpp, 0, NULLFILEOFF, true);
if (error)
return error;
diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h
index 33ac9b8..d29a796 100644
--- a/fs/xfs/xfs_reflink.h
+++ b/fs/xfs/xfs_reflink.h
@@ -39,9 +39,9 @@
extern int xfs_reflink_cancel_cow_blocks(struct xfs_inode *ip,
struct xfs_trans **tpp, xfs_fileoff_t offset_fsb,
- xfs_fileoff_t end_fsb);
+ xfs_fileoff_t end_fsb, bool cancel_real);
extern int xfs_reflink_cancel_cow_range(struct xfs_inode *ip, xfs_off_t offset,
- xfs_off_t count);
+ xfs_off_t count, bool cancel_real);
extern int xfs_reflink_end_cow(struct xfs_inode *ip, xfs_off_t offset,
xfs_off_t count);
extern int xfs_reflink_recover_cow(struct xfs_mount *mp);
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 890862f..685c042 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -953,7 +953,7 @@
XFS_STATS_INC(ip->i_mount, vn_remove);
if (xfs_is_reflink_inode(ip)) {
- error = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF);
+ error = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF, true);
if (error && !XFS_FORCED_SHUTDOWN(ip->i_mount))
xfs_warn(ip->i_mount,
"Error %d while evicting CoW blocks for inode %llu.",
diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
index 5bdab6b..928fd66 100644
--- a/include/asm-generic/4level-fixup.h
+++ b/include/asm-generic/4level-fixup.h
@@ -15,7 +15,6 @@
((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
NULL: pmd_offset(pud, address))
-#define pud_alloc(mm, pgd, address) (pgd)
#define pud_offset(pgd, start) (pgd)
#define pud_none(pud) 0
#define pud_bad(pud) 0
@@ -35,4 +34,6 @@
#undef pud_addr_end
#define pud_addr_end(addr, end) (end)
+#include <asm-generic/5level-fixup.h>
+
#endif
diff --git a/include/asm-generic/5level-fixup.h b/include/asm-generic/5level-fixup.h
new file mode 100644
index 0000000..b5ca82d
--- /dev/null
+++ b/include/asm-generic/5level-fixup.h
@@ -0,0 +1,41 @@
+#ifndef _5LEVEL_FIXUP_H
+#define _5LEVEL_FIXUP_H
+
+#define __ARCH_HAS_5LEVEL_HACK
+#define __PAGETABLE_P4D_FOLDED
+
+#define P4D_SHIFT PGDIR_SHIFT
+#define P4D_SIZE PGDIR_SIZE
+#define P4D_MASK PGDIR_MASK
+#define PTRS_PER_P4D 1
+
+#define p4d_t pgd_t
+
+#define pud_alloc(mm, p4d, address) \
+ ((unlikely(pgd_none(*(p4d))) && __pud_alloc(mm, p4d, address)) ? \
+ NULL : pud_offset(p4d, address))
+
+#define p4d_alloc(mm, pgd, address) (pgd)
+#define p4d_offset(pgd, start) (pgd)
+#define p4d_none(p4d) 0
+#define p4d_bad(p4d) 0
+#define p4d_present(p4d) 1
+#define p4d_ERROR(p4d) do { } while (0)
+#define p4d_clear(p4d) pgd_clear(p4d)
+#define p4d_val(p4d) pgd_val(p4d)
+#define p4d_populate(mm, p4d, pud) pgd_populate(mm, p4d, pud)
+#define p4d_page(p4d) pgd_page(p4d)
+#define p4d_page_vaddr(p4d) pgd_page_vaddr(p4d)
+
+#define __p4d(x) __pgd(x)
+#define set_p4d(p4dp, p4d) set_pgd(p4dp, p4d)
+
+#undef p4d_free_tlb
+#define p4d_free_tlb(tlb, x, addr) do { } while (0)
+#define p4d_free(mm, x) do { } while (0)
+#define __p4d_free_tlb(tlb, x, addr) do { } while (0)
+
+#undef p4d_addr_end
+#define p4d_addr_end(addr, end) (end)
+
+#endif
diff --git a/include/asm-generic/pgtable-nop4d-hack.h b/include/asm-generic/pgtable-nop4d-hack.h
new file mode 100644
index 0000000..752fb75
--- /dev/null
+++ b/include/asm-generic/pgtable-nop4d-hack.h
@@ -0,0 +1,62 @@
+#ifndef _PGTABLE_NOP4D_HACK_H
+#define _PGTABLE_NOP4D_HACK_H
+
+#ifndef __ASSEMBLY__
+#include <asm-generic/5level-fixup.h>
+
+#define __PAGETABLE_PUD_FOLDED
+
+/*
+ * Having the pud type consist of a pgd gets the size right, and allows
+ * us to conceptually access the pgd entry that this pud is folded into
+ * without casting.
+ */
+typedef struct { pgd_t pgd; } pud_t;
+
+#define PUD_SHIFT PGDIR_SHIFT
+#define PTRS_PER_PUD 1
+#define PUD_SIZE (1UL << PUD_SHIFT)
+#define PUD_MASK (~(PUD_SIZE-1))
+
+/*
+ * The "pgd_xxx()" functions here are trivial for a folded two-level
+ * setup: the pud is never bad, and a pud always exists (as it's folded
+ * into the pgd entry)
+ */
+static inline int pgd_none(pgd_t pgd) { return 0; }
+static inline int pgd_bad(pgd_t pgd) { return 0; }
+static inline int pgd_present(pgd_t pgd) { return 1; }
+static inline void pgd_clear(pgd_t *pgd) { }
+#define pud_ERROR(pud) (pgd_ERROR((pud).pgd))
+
+#define pgd_populate(mm, pgd, pud) do { } while (0)
+/*
+ * (puds are folded into pgds so this doesn't get actually called,
+ * but the define is needed for a generic inline function.)
+ */
+#define set_pgd(pgdptr, pgdval) set_pud((pud_t *)(pgdptr), (pud_t) { pgdval })
+
+static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
+{
+ return (pud_t *)pgd;
+}
+
+#define pud_val(x) (pgd_val((x).pgd))
+#define __pud(x) ((pud_t) { __pgd(x) })
+
+#define pgd_page(pgd) (pud_page((pud_t){ pgd }))
+#define pgd_page_vaddr(pgd) (pud_page_vaddr((pud_t){ pgd }))
+
+/*
+ * allocating and freeing a pud is trivial: the 1-entry pud is
+ * inside the pgd, so has no extra memory associated with it.
+ */
+#define pud_alloc_one(mm, address) NULL
+#define pud_free(mm, x) do { } while (0)
+#define __pud_free_tlb(tlb, x, a) do { } while (0)
+
+#undef pud_addr_end
+#define pud_addr_end(addr, end) (end)
+
+#endif /* __ASSEMBLY__ */
+#endif /* _PGTABLE_NOP4D_HACK_H */
diff --git a/include/asm-generic/pgtable-nop4d.h b/include/asm-generic/pgtable-nop4d.h
new file mode 100644
index 0000000..de364ec
--- /dev/null
+++ b/include/asm-generic/pgtable-nop4d.h
@@ -0,0 +1,56 @@
+#ifndef _PGTABLE_NOP4D_H
+#define _PGTABLE_NOP4D_H
+
+#ifndef __ASSEMBLY__
+
+#define __PAGETABLE_P4D_FOLDED
+
+typedef struct { pgd_t pgd; } p4d_t;
+
+#define P4D_SHIFT PGDIR_SHIFT
+#define PTRS_PER_P4D 1
+#define P4D_SIZE (1UL << P4D_SHIFT)
+#define P4D_MASK (~(P4D_SIZE-1))
+
+/*
+ * The "pgd_xxx()" functions here are trivial for a folded two-level
+ * setup: the p4d is never bad, and a p4d always exists (as it's folded
+ * into the pgd entry)
+ */
+static inline int pgd_none(pgd_t pgd) { return 0; }
+static inline int pgd_bad(pgd_t pgd) { return 0; }
+static inline int pgd_present(pgd_t pgd) { return 1; }
+static inline void pgd_clear(pgd_t *pgd) { }
+#define p4d_ERROR(p4d) (pgd_ERROR((p4d).pgd))
+
+#define pgd_populate(mm, pgd, p4d) do { } while (0)
+/*
+ * (p4ds are folded into pgds so this doesn't get actually called,
+ * but the define is needed for a generic inline function.)
+ */
+#define set_pgd(pgdptr, pgdval) set_p4d((p4d_t *)(pgdptr), (p4d_t) { pgdval })
+
+static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
+{
+ return (p4d_t *)pgd;
+}
+
+#define p4d_val(x) (pgd_val((x).pgd))
+#define __p4d(x) ((p4d_t) { __pgd(x) })
+
+#define pgd_page(pgd) (p4d_page((p4d_t){ pgd }))
+#define pgd_page_vaddr(pgd) (p4d_page_vaddr((p4d_t){ pgd }))
+
+/*
+ * allocating and freeing a p4d is trivial: the 1-entry p4d is
+ * inside the pgd, so has no extra memory associated with it.
+ */
+#define p4d_alloc_one(mm, address) NULL
+#define p4d_free(mm, x) do { } while (0)
+#define __p4d_free_tlb(tlb, x, a) do { } while (0)
+
+#undef p4d_addr_end
+#define p4d_addr_end(addr, end) (end)
+
+#endif /* __ASSEMBLY__ */
+#endif /* _PGTABLE_NOP4D_H */
diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
index 810431d..c2b9b96 100644
--- a/include/asm-generic/pgtable-nopud.h
+++ b/include/asm-generic/pgtable-nopud.h
@@ -3,52 +3,57 @@
#ifndef __ASSEMBLY__
+#ifdef __ARCH_USE_5LEVEL_HACK
+#include <asm-generic/pgtable-nop4d-hack.h>
+#else
+#include <asm-generic/pgtable-nop4d.h>
+
#define __PAGETABLE_PUD_FOLDED
/*
- * Having the pud type consist of a pgd gets the size right, and allows
- * us to conceptually access the pgd entry that this pud is folded into
+ * Having the pud type consist of a p4d gets the size right, and allows
+ * us to conceptually access the p4d entry that this pud is folded into
* without casting.
*/
-typedef struct { pgd_t pgd; } pud_t;
+typedef struct { p4d_t p4d; } pud_t;
-#define PUD_SHIFT PGDIR_SHIFT
+#define PUD_SHIFT P4D_SHIFT
#define PTRS_PER_PUD 1
#define PUD_SIZE (1UL << PUD_SHIFT)
#define PUD_MASK (~(PUD_SIZE-1))
/*
- * The "pgd_xxx()" functions here are trivial for a folded two-level
+ * The "p4d_xxx()" functions here are trivial for a folded two-level
* setup: the pud is never bad, and a pud always exists (as it's folded
- * into the pgd entry)
+ * into the p4d entry)
*/
-static inline int pgd_none(pgd_t pgd) { return 0; }
-static inline int pgd_bad(pgd_t pgd) { return 0; }
-static inline int pgd_present(pgd_t pgd) { return 1; }
-static inline void pgd_clear(pgd_t *pgd) { }
-#define pud_ERROR(pud) (pgd_ERROR((pud).pgd))
+static inline int p4d_none(p4d_t p4d) { return 0; }
+static inline int p4d_bad(p4d_t p4d) { return 0; }
+static inline int p4d_present(p4d_t p4d) { return 1; }
+static inline void p4d_clear(p4d_t *p4d) { }
+#define pud_ERROR(pud) (p4d_ERROR((pud).p4d))
-#define pgd_populate(mm, pgd, pud) do { } while (0)
+#define p4d_populate(mm, p4d, pud) do { } while (0)
/*
- * (puds are folded into pgds so this doesn't get actually called,
+ * (puds are folded into p4ds so this doesn't get actually called,
* but the define is needed for a generic inline function.)
*/
-#define set_pgd(pgdptr, pgdval) set_pud((pud_t *)(pgdptr), (pud_t) { pgdval })
+#define set_p4d(p4dptr, p4dval) set_pud((pud_t *)(p4dptr), (pud_t) { p4dval })
-static inline pud_t * pud_offset(pgd_t * pgd, unsigned long address)
+static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
{
- return (pud_t *)pgd;
+ return (pud_t *)p4d;
}
-#define pud_val(x) (pgd_val((x).pgd))
-#define __pud(x) ((pud_t) { __pgd(x) } )
+#define pud_val(x) (p4d_val((x).p4d))
+#define __pud(x) ((pud_t) { __p4d(x) })
-#define pgd_page(pgd) (pud_page((pud_t){ pgd }))
-#define pgd_page_vaddr(pgd) (pud_page_vaddr((pud_t){ pgd }))
+#define p4d_page(p4d) (pud_page((pud_t){ p4d }))
+#define p4d_page_vaddr(p4d) (pud_page_vaddr((pud_t){ p4d }))
/*
* allocating and freeing a pud is trivial: the 1-entry pud is
- * inside the pgd, so has no extra memory associated with it.
+ * inside the p4d, so has no extra memory associated with it.
*/
#define pud_alloc_one(mm, address) NULL
#define pud_free(mm, x) do { } while (0)
@@ -58,4 +63,5 @@
#define pud_addr_end(addr, end) (end)
#endif /* __ASSEMBLY__ */
+#endif /* !__ARCH_USE_5LEVEL_HACK */
#endif /* _PGTABLE_NOPUD_H */
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index f4ca23b..1fad160 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -10,9 +10,9 @@
#include <linux/bug.h>
#include <linux/errno.h>
-#if 4 - defined(__PAGETABLE_PUD_FOLDED) - defined(__PAGETABLE_PMD_FOLDED) != \
- CONFIG_PGTABLE_LEVELS
-#error CONFIG_PGTABLE_LEVELS is not consistent with __PAGETABLE_{PUD,PMD}_FOLDED
+#if 5 - defined(__PAGETABLE_P4D_FOLDED) - defined(__PAGETABLE_PUD_FOLDED) - \
+ defined(__PAGETABLE_PMD_FOLDED) != CONFIG_PGTABLE_LEVELS
+#error CONFIG_PGTABLE_LEVELS is not consistent with __PAGETABLE_{P4D,PUD,PMD}_FOLDED
#endif
/*
@@ -424,6 +424,13 @@
(__boundary - 1 < (end) - 1)? __boundary: (end); \
})
+#ifndef p4d_addr_end
+#define p4d_addr_end(addr, end) \
+({ unsigned long __boundary = ((addr) + P4D_SIZE) & P4D_MASK; \
+ (__boundary - 1 < (end) - 1)? __boundary: (end); \
+})
+#endif
+
#ifndef pud_addr_end
#define pud_addr_end(addr, end) \
({ unsigned long __boundary = ((addr) + PUD_SIZE) & PUD_MASK; \
@@ -444,6 +451,7 @@
* Do the tests inline, but report and clear the bad entry in mm/memory.c.
*/
void pgd_clear_bad(pgd_t *);
+void p4d_clear_bad(p4d_t *);
void pud_clear_bad(pud_t *);
void pmd_clear_bad(pmd_t *);
@@ -458,6 +466,17 @@
return 0;
}
+static inline int p4d_none_or_clear_bad(p4d_t *p4d)
+{
+ if (p4d_none(*p4d))
+ return 1;
+ if (unlikely(p4d_bad(*p4d))) {
+ p4d_clear_bad(p4d);
+ return 1;
+ }
+ return 0;
+}
+
static inline int pud_none_or_clear_bad(pud_t *pud)
{
if (pud_none(*pud))
@@ -844,11 +863,30 @@
#endif /* CONFIG_MMU */
#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
+
+#ifndef __PAGETABLE_P4D_FOLDED
+int p4d_set_huge(p4d_t *p4d, phys_addr_t addr, pgprot_t prot);
+int p4d_clear_huge(p4d_t *p4d);
+#else
+static inline int p4d_set_huge(p4d_t *p4d, phys_addr_t addr, pgprot_t prot)
+{
+ return 0;
+}
+static inline int p4d_clear_huge(p4d_t *p4d)
+{
+ return 0;
+}
+#endif /* !__PAGETABLE_P4D_FOLDED */
+
int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot);
int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot);
int pud_clear_huge(pud_t *pud);
int pmd_clear_huge(pmd_t *pmd);
#else /* !CONFIG_HAVE_ARCH_HUGE_VMAP */
+static inline int p4d_set_huge(p4d_t *p4d, phys_addr_t addr, pgprot_t prot)
+{
+ return 0;
+}
static inline int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot)
{
return 0;
@@ -857,6 +895,10 @@
{
return 0;
}
+static inline int p4d_clear_huge(p4d_t *p4d)
+{
+ return 0;
+}
static inline int pud_clear_huge(pud_t *pud)
{
return 0;
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index 4329bc6..8afa433 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -270,6 +270,12 @@
__pte_free_tlb(tlb, ptep, address); \
} while (0)
+#define pmd_free_tlb(tlb, pmdp, address) \
+ do { \
+ __tlb_adjust_range(tlb, address, PAGE_SIZE); \
+ __pmd_free_tlb(tlb, pmdp, address); \
+ } while (0)
+
#ifndef __ARCH_HAS_4LEVEL_HACK
#define pud_free_tlb(tlb, pudp, address) \
do { \
@@ -278,11 +284,13 @@
} while (0)
#endif
-#define pmd_free_tlb(tlb, pmdp, address) \
+#ifndef __ARCH_HAS_5LEVEL_HACK
+#define p4d_free_tlb(tlb, pudp, address) \
do { \
- __tlb_adjust_range(tlb, address, PAGE_SIZE); \
- __pmd_free_tlb(tlb, pmdp, address); \
+ __tlb_adjust_range(tlb, address, PAGE_SIZE); \
+ __p4d_free_tlb(tlb, pudp, address); \
} while (0)
+#endif
#define tlb_migrate_finish(mm) do {} while (0)
diff --git a/include/dt-bindings/sound/cs42l42.h b/include/dt-bindings/sound/cs42l42.h
index 399a123..db69d84 100644
--- a/include/dt-bindings/sound/cs42l42.h
+++ b/include/dt-bindings/sound/cs42l42.h
@@ -20,7 +20,7 @@
#define CS42L42_HPOUT_LOAD_1NF 0
#define CS42L42_HPOUT_LOAD_10NF 1
-/* HPOUT Clamp to GND Overide */
+/* HPOUT Clamp to GND Override */
#define CS42L42_HPOUT_CLAMP_EN 0
#define CS42L42_HPOUT_CLAMP_DIS 1
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 796016e..5a7da60 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -435,7 +435,6 @@
struct delayed_work delay_work;
struct backing_dev_info *backing_dev_info;
- struct disk_devt *disk_devt;
/*
* The queue owner gets to use this for whatever they like.
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 1816c5e..88cd5dc 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -48,6 +48,7 @@
unsigned long mount_timeout; /* jiffies */
unsigned long osd_idle_ttl; /* jiffies */
unsigned long osd_keepalive_timeout; /* jiffies */
+ unsigned long osd_request_timeout; /* jiffies */
/*
* any type that can't be simply compared or doesn't need need
@@ -68,6 +69,7 @@
#define CEPH_MOUNT_TIMEOUT_DEFAULT msecs_to_jiffies(60 * 1000)
#define CEPH_OSD_KEEPALIVE_DEFAULT msecs_to_jiffies(5 * 1000)
#define CEPH_OSD_IDLE_TTL_DEFAULT msecs_to_jiffies(60 * 1000)
+#define CEPH_OSD_REQUEST_TIMEOUT_DEFAULT 0 /* no timeout */
#define CEPH_MONC_HUNT_INTERVAL msecs_to_jiffies(3 * 1000)
#define CEPH_MONC_PING_INTERVAL msecs_to_jiffies(10 * 1000)
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 2ea0c28..c125b5d 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -189,6 +189,7 @@
/* internal */
unsigned long r_stamp; /* jiffies, send or check time */
+ unsigned long r_start_stamp; /* jiffies */
int r_attempts;
struct ceph_eversion r_replay_version; /* aka reassert_version */
u32 r_last_force_resend;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index aad3fd0..7251f7b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2678,7 +2678,7 @@
static inline const char *kernel_read_file_id_str(enum kernel_read_file_id id)
{
- if (id < 0 || id >= READING_MAX_ID)
+ if ((unsigned)id >= READING_MAX_ID)
return kernel_read_file_str[READING_UNKNOWN];
return kernel_read_file_str[id];
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index a999d28..76f3975 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -167,13 +167,6 @@
};
#endif /* CONFIG_BLK_DEV_INTEGRITY */
-struct disk_devt {
- atomic_t count;
- void (*release)(struct disk_devt *disk_devt);
-};
-
-void put_disk_devt(struct disk_devt *disk_devt);
-void get_disk_devt(struct disk_devt *disk_devt);
struct gendisk {
/* major, first_minor and minors are input parameters only,
@@ -183,7 +176,6 @@
int first_minor;
int minors; /* maximum number of minors, =1 for
* disks that can't be partitioned. */
- struct disk_devt *disk_devt;
char disk_name[DISK_NAME_LEN]; /* name of major driver */
char *(*devnode)(struct gendisk *gd, umode_t *mode);
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 503099d..b857fc8 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -122,7 +122,7 @@
struct page *follow_huge_pud(struct mm_struct *mm, unsigned long address,
pud_t *pud, int flags);
int pmd_huge(pmd_t pmd);
-int pud_huge(pud_t pmd);
+int pud_huge(pud_t pud);
unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
unsigned long address, unsigned long end, pgprot_t newprot);
@@ -197,6 +197,9 @@
#ifndef pgd_huge
#define pgd_huge(x) 0
#endif
+#ifndef p4d_huge
+#define p4d_huge(x) 0
+#endif
#ifndef pgd_write
static inline int pgd_write(pgd_t pgd)
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index 8e06d75..2afd74b 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -90,6 +90,13 @@
struct static_key {
atomic_t enabled;
/*
+ * Note:
+ * To make anonymous unions work with old compilers, the static
+ * initialization of them requires brackets. This creates a dependency
+ * on the order of the struct with the initializers. If any fields
+ * are added, STATIC_KEY_INIT_TRUE and STATIC_KEY_INIT_FALSE may need
+ * to be modified.
+ *
* bit 0 => 1 if key is initially true
* 0 if initially false
* bit 1 => 1 if points to struct static_key_mod
@@ -166,10 +173,10 @@
*/
#define STATIC_KEY_INIT_TRUE \
{ .enabled = { 1 }, \
- .entries = (void *)JUMP_TYPE_TRUE }
+ { .entries = (void *)JUMP_TYPE_TRUE } }
#define STATIC_KEY_INIT_FALSE \
{ .enabled = { 0 }, \
- .entries = (void *)JUMP_TYPE_FALSE }
+ { .entries = (void *)JUMP_TYPE_FALSE } }
#else /* !HAVE_JUMP_LABEL */
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index ceb3fe7..1c823be 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -18,6 +18,7 @@
extern pte_t kasan_zero_pte[PTRS_PER_PTE];
extern pmd_t kasan_zero_pmd[PTRS_PER_PMD];
extern pud_t kasan_zero_pud[PTRS_PER_PUD];
+extern p4d_t kasan_zero_p4d[PTRS_PER_P4D];
void kasan_populate_zero_shadow(const void *shadow_start,
const void *shadow_end);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0d65dd7..5f01c88 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1560,14 +1560,24 @@
return ptep;
}
-#ifdef __PAGETABLE_PUD_FOLDED
-static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd,
+#ifdef __PAGETABLE_P4D_FOLDED
+static inline int __p4d_alloc(struct mm_struct *mm, pgd_t *pgd,
unsigned long address)
{
return 0;
}
#else
-int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
+int __p4d_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
+#endif
+
+#ifdef __PAGETABLE_PUD_FOLDED
+static inline int __pud_alloc(struct mm_struct *mm, p4d_t *p4d,
+ unsigned long address)
+{
+ return 0;
+}
+#else
+int __pud_alloc(struct mm_struct *mm, p4d_t *p4d, unsigned long address);
#endif
#if defined(__PAGETABLE_PMD_FOLDED) || !defined(CONFIG_MMU)
@@ -1619,12 +1629,23 @@
* Remove it when 4level-fixup.h has been removed.
*/
#if defined(CONFIG_MMU) && !defined(__ARCH_HAS_4LEVEL_HACK)
-static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+
+#ifndef __ARCH_HAS_5LEVEL_HACK
+static inline p4d_t *p4d_alloc(struct mm_struct *mm, pgd_t *pgd,
+ unsigned long address)
{
- return (unlikely(pgd_none(*pgd)) && __pud_alloc(mm, pgd, address))?
- NULL: pud_offset(pgd, address);
+ return (unlikely(pgd_none(*pgd)) && __p4d_alloc(mm, pgd, address)) ?
+ NULL : p4d_offset(pgd, address);
}
+static inline pud_t *pud_alloc(struct mm_struct *mm, p4d_t *p4d,
+ unsigned long address)
+{
+ return (unlikely(p4d_none(*p4d)) && __pud_alloc(mm, p4d, address)) ?
+ NULL : pud_offset(p4d, address);
+}
+#endif /* !__ARCH_HAS_5LEVEL_HACK */
+
static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
{
return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
@@ -2385,7 +2406,8 @@
struct page *sparse_mem_map_populate(unsigned long pnum, int nid);
pgd_t *vmemmap_pgd_populate(unsigned long addr, int node);
-pud_t *vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node);
+p4d_t *vmemmap_p4d_populate(pgd_t *pgd, unsigned long addr, int node);
+pud_t *vmemmap_pud_populate(p4d_t *p4d, unsigned long addr, int node);
pmd_t *vmemmap_pmd_populate(pud_t *pud, unsigned long addr, int node);
pte_t *vmemmap_pte_populate(pmd_t *pmd, unsigned long addr, int node);
void *vmemmap_alloc_block(unsigned long size, int node);
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index ad3e515..c9f795e 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -65,7 +65,7 @@
int uV; /* suspend voltage */
unsigned int mode; /* suspend regulator operating mode */
int enabled; /* is regulator enabled in this suspend state */
- int disabled; /* is the regulator disbled in this suspend state */
+ int disabled; /* is the regulator disabled in this suspend state */
};
/**
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index be76523..32354b4 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -72,7 +72,7 @@
struct hlist_node node;
struct user_namespace *ns;
kuid_t uid;
- atomic_t count;
+ int count;
atomic_t ucount[UCOUNT_COUNTS];
};
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h
index 0468548..48a3483 100644
--- a/include/linux/userfaultfd_k.h
+++ b/include/linux/userfaultfd_k.h
@@ -61,8 +61,7 @@
unsigned long from, unsigned long to,
unsigned long len);
-extern void userfaultfd_remove(struct vm_area_struct *vma,
- struct vm_area_struct **prev,
+extern bool userfaultfd_remove(struct vm_area_struct *vma,
unsigned long start,
unsigned long end);
@@ -72,8 +71,6 @@
extern void userfaultfd_unmap_complete(struct mm_struct *mm,
struct list_head *uf);
-extern void userfaultfd_exit(struct mm_struct *mm);
-
#else /* CONFIG_USERFAULTFD */
/* mm helpers */
@@ -120,11 +117,11 @@
{
}
-static inline void userfaultfd_remove(struct vm_area_struct *vma,
- struct vm_area_struct **prev,
+static inline bool userfaultfd_remove(struct vm_area_struct *vma,
unsigned long start,
unsigned long end)
{
+ return true;
}
static inline int userfaultfd_unmap_prep(struct vm_area_struct *vma,
@@ -139,10 +136,6 @@
{
}
-static inline void userfaultfd_exit(struct mm_struct *mm)
-{
-}
-
#endif /* CONFIG_USERFAULTFD */
#endif /* _LINUX_USERFAULTFD_K_H */
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 6aa1b6c..a80b7b5 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -79,6 +79,9 @@
THP_SPLIT_PAGE_FAILED,
THP_DEFERRED_SPLIT_PAGE,
THP_SPLIT_PMD,
+#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
+ THP_SPLIT_PUD,
+#endif
THP_ZERO_PAGE_ALLOC,
THP_ZERO_PAGE_ALLOC_FAILED,
#endif
diff --git a/include/linux/wait.h b/include/linux/wait.h
index aacb128..db076ca 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -620,30 +620,19 @@
__ret; \
})
+extern int do_wait_intr(wait_queue_head_t *, wait_queue_t *);
+extern int do_wait_intr_irq(wait_queue_head_t *, wait_queue_t *);
-#define __wait_event_interruptible_locked(wq, condition, exclusive, irq) \
+#define __wait_event_interruptible_locked(wq, condition, exclusive, fn) \
({ \
- int __ret = 0; \
+ int __ret; \
DEFINE_WAIT(__wait); \
if (exclusive) \
__wait.flags |= WQ_FLAG_EXCLUSIVE; \
do { \
- if (likely(list_empty(&__wait.task_list))) \
- __add_wait_queue_tail(&(wq), &__wait); \
- set_current_state(TASK_INTERRUPTIBLE); \
- if (signal_pending(current)) { \
- __ret = -ERESTARTSYS; \
+ __ret = fn(&(wq), &__wait); \
+ if (__ret) \
break; \
- } \
- if (irq) \
- spin_unlock_irq(&(wq).lock); \
- else \
- spin_unlock(&(wq).lock); \
- schedule(); \
- if (irq) \
- spin_lock_irq(&(wq).lock); \
- else \
- spin_lock(&(wq).lock); \
} while (!(condition)); \
__remove_wait_queue(&(wq), &__wait); \
__set_current_state(TASK_RUNNING); \
@@ -676,7 +665,7 @@
*/
#define wait_event_interruptible_locked(wq, condition) \
((condition) \
- ? 0 : __wait_event_interruptible_locked(wq, condition, 0, 0))
+ ? 0 : __wait_event_interruptible_locked(wq, condition, 0, do_wait_intr))
/**
* wait_event_interruptible_locked_irq - sleep until a condition gets true
@@ -703,7 +692,7 @@
*/
#define wait_event_interruptible_locked_irq(wq, condition) \
((condition) \
- ? 0 : __wait_event_interruptible_locked(wq, condition, 0, 1))
+ ? 0 : __wait_event_interruptible_locked(wq, condition, 0, do_wait_intr_irq))
/**
* wait_event_interruptible_exclusive_locked - sleep exclusively until a condition gets true
@@ -734,7 +723,7 @@
*/
#define wait_event_interruptible_exclusive_locked(wq, condition) \
((condition) \
- ? 0 : __wait_event_interruptible_locked(wq, condition, 1, 0))
+ ? 0 : __wait_event_interruptible_locked(wq, condition, 1, do_wait_intr))
/**
* wait_event_interruptible_exclusive_locked_irq - sleep until a condition gets true
@@ -765,7 +754,7 @@
*/
#define wait_event_interruptible_exclusive_locked_irq(wq, condition) \
((condition) \
- ? 0 : __wait_event_interruptible_locked(wq, condition, 1, 1))
+ ? 0 : __wait_event_interruptible_locked(wq, condition, 1, do_wait_intr_irq))
#define __wait_event_killable(wq, condition) \
diff --git a/include/media/vsp1.h b/include/media/vsp1.h
index 458b400..38aac55 100644
--- a/include/media/vsp1.h
+++ b/include/media/vsp1.h
@@ -20,8 +20,17 @@
int vsp1_du_init(struct device *dev);
-int vsp1_du_setup_lif(struct device *dev, unsigned int width,
- unsigned int height);
+/**
+ * struct vsp1_du_lif_config - VSP LIF configuration
+ * @width: output frame width
+ * @height: output frame height
+ */
+struct vsp1_du_lif_config {
+ unsigned int width;
+ unsigned int height;
+};
+
+int vsp1_du_setup_lif(struct device *dev, const struct vsp1_du_lif_config *cfg);
struct vsp1_du_atomic_config {
u32 pixelformat;
diff --git a/include/net/irda/timer.h b/include/net/irda/timer.h
index cb2615c..d784f24 100644
--- a/include/net/irda/timer.h
+++ b/include/net/irda/timer.h
@@ -59,7 +59,7 @@
* Slot timer must never exceed 85 ms, and must always be at least 25 ms,
* suggested to 75-85 msec by IrDA lite. This doesn't work with a lot of
* devices, and other stackes uses a lot more, so it's best we do it as well
- * (Note : this is the default value and sysctl overides it - Jean II)
+ * (Note : this is the default value and sysctl overrides it - Jean II)
*/
#define SLOT_TIMEOUT (90*HZ/1000)
diff --git a/include/trace/events/syscalls.h b/include/trace/events/syscalls.h
index 14e49c7..b35533b 100644
--- a/include/trace/events/syscalls.h
+++ b/include/trace/events/syscalls.h
@@ -1,5 +1,6 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM raw_syscalls
+#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE syscalls
#if !defined(_TRACE_EVENTS_SYSCALLS_H) || defined(TRACE_HEADER_MULTI_READ)
diff --git a/include/uapi/linux/userfaultfd.h b/include/uapi/linux/userfaultfd.h
index c055947..3b05953 100644
--- a/include/uapi/linux/userfaultfd.h
+++ b/include/uapi/linux/userfaultfd.h
@@ -18,8 +18,7 @@
* means the userland is reading).
*/
#define UFFD_API ((__u64)0xAA)
-#define UFFD_API_FEATURES (UFFD_FEATURE_EVENT_EXIT | \
- UFFD_FEATURE_EVENT_FORK | \
+#define UFFD_API_FEATURES (UFFD_FEATURE_EVENT_FORK | \
UFFD_FEATURE_EVENT_REMAP | \
UFFD_FEATURE_EVENT_REMOVE | \
UFFD_FEATURE_EVENT_UNMAP | \
@@ -113,7 +112,6 @@
#define UFFD_EVENT_REMAP 0x14
#define UFFD_EVENT_REMOVE 0x15
#define UFFD_EVENT_UNMAP 0x16
-#define UFFD_EVENT_EXIT 0x17
/* flags for UFFD_EVENT_PAGEFAULT */
#define UFFD_PAGEFAULT_FLAG_WRITE (1<<0) /* If this was a write fault */
@@ -163,7 +161,6 @@
#define UFFD_FEATURE_MISSING_HUGETLBFS (1<<4)
#define UFFD_FEATURE_MISSING_SHMEM (1<<5)
#define UFFD_FEATURE_EVENT_UNMAP (1<<6)
-#define UFFD_FEATURE_EVENT_EXIT (1<<7)
__u64 features;
__u64 ioctls;
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index a0083be..1f6d78f 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -2,6 +2,7 @@
#define __LINUX_SWIOTLB_XEN_H
#include <linux/dma-direction.h>
+#include <linux/scatterlist.h>
#include <linux/swiotlb.h>
extern int xen_swiotlb_init(int verbose, bool early);
@@ -55,4 +56,14 @@
extern int
xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
+
+extern int
+xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr, size_t size,
+ unsigned long attrs);
+
+extern int
+xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t handle, size_t size,
+ unsigned long attrs);
#endif /* __LINUX_SWIOTLB_XEN_H */
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 0125589c..4885132 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2669,7 +2669,7 @@
*
* Returns 0 on success, -errno on failure. On failure, csses which have
* been processed already aren't cleaned up. The caller is responsible for
- * cleaning up with cgroup_apply_control_disble().
+ * cleaning up with cgroup_apply_control_disable().
*/
static int cgroup_apply_control_enable(struct cgroup *cgrp)
{
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 6f41548f..a17ed56 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -998,7 +998,7 @@
*/
#define PERF_CPU_HRTIMER (1000 / HZ)
/*
- * function must be called with interrupts disbled
+ * function must be called with interrupts disabled
*/
static enum hrtimer_restart perf_mux_hrtimer_handler(struct hrtimer *hr)
{
diff --git a/kernel/exit.c b/kernel/exit.c
index e126ebf..516acdb 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -554,7 +554,6 @@
enter_lazy_tlb(mm, current);
task_unlock(current);
mm_update_next_owner(mm);
- userfaultfd_exit(mm);
mmput(mm);
if (test_thread_flag(TIF_MEMDIE))
exit_oom_victim();
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 12e38c2..a95e5d1 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3262,10 +3262,17 @@
if (depth) {
hlock = curr->held_locks + depth - 1;
if (hlock->class_idx == class_idx && nest_lock) {
- if (hlock->references)
+ if (hlock->references) {
+ /*
+ * Check: unsigned int references:12, overflow.
+ */
+ if (DEBUG_LOCKS_WARN_ON(hlock->references == (1 << 12)-1))
+ return 0;
+
hlock->references++;
- else
+ } else {
hlock->references = 2;
+ }
return 1;
}
diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c
index da6c9a3..6b7abb3 100644
--- a/kernel/locking/test-ww_mutex.c
+++ b/kernel/locking/test-ww_mutex.c
@@ -50,7 +50,7 @@
if (mtx->flags & TEST_MTX_TRY) {
while (!ww_mutex_trylock(&mtx->mutex))
- cpu_relax();
+ cond_resched();
} else {
ww_mutex_lock(&mtx->mutex, NULL);
}
@@ -88,7 +88,7 @@
ret = -EINVAL;
break;
}
- cpu_relax();
+ cond_resched();
} while (time_before(jiffies, timeout));
} else {
ret = wait_for_completion_timeout(&mtx.done, TIMEOUT);
@@ -627,7 +627,7 @@
if (ret)
return ret;
- ret = stress(4096, hweight32(STRESS_ALL)*ncpus, 1<<12, STRESS_ALL);
+ ret = stress(4095, hweight32(STRESS_ALL)*ncpus, 1<<12, STRESS_ALL);
if (ret)
return ret;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 9563838..3b31fc0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3287,10 +3287,15 @@
struct task_struct *p;
/*
- * Optimization: we know that if all tasks are in
- * the fair class we can call that function directly:
+ * Optimization: we know that if all tasks are in the fair class we can
+ * call that function directly, but only if the @prev task wasn't of a
+ * higher scheduling class, because otherwise those loose the
+ * opportunity to pull in more work from other CPUs.
*/
- if (likely(rq->nr_running == rq->cfs.h_nr_running)) {
+ if (likely((prev->sched_class == &idle_sched_class ||
+ prev->sched_class == &fair_sched_class) &&
+ rq->nr_running == rq->cfs.h_nr_running)) {
+
p = fair_sched_class.pick_next_task(rq, prev, rf);
if (unlikely(p == RETRY_TASK))
goto again;
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 8f8de3d..cd7cd48 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -36,6 +36,7 @@
u64 last_freq_update_time;
s64 freq_update_delay_ns;
unsigned int next_freq;
+ unsigned int cached_raw_freq;
/* The next fields are only needed if fast switch cannot be used. */
struct irq_work irq_work;
@@ -52,7 +53,6 @@
struct update_util_data update_util;
struct sugov_policy *sg_policy;
- unsigned int cached_raw_freq;
unsigned long iowait_boost;
unsigned long iowait_boost_max;
u64 last_update;
@@ -116,7 +116,7 @@
/**
* get_next_freq - Compute a new frequency for a given cpufreq policy.
- * @sg_cpu: schedutil cpu object to compute the new frequency for.
+ * @sg_policy: schedutil policy object to compute the new frequency for.
* @util: Current CPU utilization.
* @max: CPU capacity.
*
@@ -136,19 +136,18 @@
* next_freq (as calculated above) is returned, subject to policy min/max and
* cpufreq driver limitations.
*/
-static unsigned int get_next_freq(struct sugov_cpu *sg_cpu, unsigned long util,
- unsigned long max)
+static unsigned int get_next_freq(struct sugov_policy *sg_policy,
+ unsigned long util, unsigned long max)
{
- struct sugov_policy *sg_policy = sg_cpu->sg_policy;
struct cpufreq_policy *policy = sg_policy->policy;
unsigned int freq = arch_scale_freq_invariant() ?
policy->cpuinfo.max_freq : policy->cur;
freq = (freq + (freq >> 2)) * util / max;
- if (freq == sg_cpu->cached_raw_freq && sg_policy->next_freq != UINT_MAX)
+ if (freq == sg_policy->cached_raw_freq && sg_policy->next_freq != UINT_MAX)
return sg_policy->next_freq;
- sg_cpu->cached_raw_freq = freq;
+ sg_policy->cached_raw_freq = freq;
return cpufreq_driver_resolve_freq(policy, freq);
}
@@ -213,7 +212,7 @@
} else {
sugov_get_util(&util, &max);
sugov_iowait_boost(sg_cpu, &util, &max);
- next_f = get_next_freq(sg_cpu, util, max);
+ next_f = get_next_freq(sg_policy, util, max);
}
sugov_update_commit(sg_policy, time, next_f);
}
@@ -267,7 +266,7 @@
sugov_iowait_boost(j_sg_cpu, &util, &max);
}
- return get_next_freq(sg_cpu, util, max);
+ return get_next_freq(sg_policy, util, max);
}
static void sugov_update_shared(struct update_util_data *hook, u64 time,
@@ -580,6 +579,7 @@
sg_policy->next_freq = UINT_MAX;
sg_policy->work_in_progress = false;
sg_policy->need_freq_update = false;
+ sg_policy->cached_raw_freq = 0;
for_each_cpu(cpu, policy->cpus) {
struct sugov_cpu *sg_cpu = &per_cpu(sugov_cpu, cpu);
@@ -590,7 +590,6 @@
sg_cpu->max = 0;
sg_cpu->flags = SCHED_CPUFREQ_RT;
sg_cpu->last_update = 0;
- sg_cpu->cached_raw_freq = 0;
sg_cpu->iowait_boost = 0;
sg_cpu->iowait_boost_max = policy->cpuinfo.max_freq;
cpufreq_add_update_util_hook(cpu, &sg_cpu->update_util,
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 3e88b35..dea1389 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5799,7 +5799,7 @@
* Due to large variance we need a large fuzz factor; hackbench in
* particularly is sensitive here.
*/
- if ((avg_idle / 512) < avg_cost)
+ if (sched_feat(SIS_AVG_CPU) && (avg_idle / 512) < avg_cost)
return -1;
time = local_clock();
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index 69631fa..1b3c818 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -51,6 +51,11 @@
*/
SCHED_FEAT(TTWU_QUEUE, true)
+/*
+ * When doing wakeups, attempt to limit superfluous scans of the LLC domain.
+ */
+SCHED_FEAT(SIS_AVG_CPU, false)
+
#ifdef HAVE_RT_PUSH_IPI
/*
* In order to avoid a thundering herd attack of CPUs that are
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index 4d2ea6f..b8c84c6 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -242,6 +242,45 @@
}
EXPORT_SYMBOL(prepare_to_wait_event);
+/*
+ * Note! These two wait functions are entered with the
+ * wait-queue lock held (and interrupts off in the _irq
+ * case), so there is no race with testing the wakeup
+ * condition in the caller before they add the wait
+ * entry to the wake queue.
+ */
+int do_wait_intr(wait_queue_head_t *wq, wait_queue_t *wait)
+{
+ if (likely(list_empty(&wait->task_list)))
+ __add_wait_queue_tail(wq, wait);
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+
+ spin_unlock(&wq->lock);
+ schedule();
+ spin_lock(&wq->lock);
+ return 0;
+}
+EXPORT_SYMBOL(do_wait_intr);
+
+int do_wait_intr_irq(wait_queue_head_t *wq, wait_queue_t *wait)
+{
+ if (likely(list_empty(&wait->task_list)))
+ __add_wait_queue_tail(wq, wait);
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+
+ spin_unlock_irq(&wq->lock);
+ schedule();
+ spin_lock_irq(&wq->lock);
+ return 0;
+}
+EXPORT_SYMBOL(do_wait_intr_irq);
+
/**
* finish_wait - clean up after waiting in a queue
* @q: waitqueue waited on
diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c
index 7906b3f..4977191 100644
--- a/kernel/time/jiffies.c
+++ b/kernel/time/jiffies.c
@@ -125,7 +125,7 @@
shift_hz += cycles_per_tick/2;
do_div(shift_hz, cycles_per_tick);
/* Calculate nsec_per_tick using shift_hz */
- nsec_per_tick = (u64)TICK_NSEC << 8;
+ nsec_per_tick = (u64)NSEC_PER_SEC << 8;
nsec_per_tick += (u32)shift_hz/2;
do_div(nsec_per_tick, (u32)shift_hz);
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index d503800..d4a06e7 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -429,7 +429,7 @@
If unsure, say N.
-config KPROBE_EVENT
+config KPROBE_EVENTS
depends on KPROBES
depends on HAVE_REGS_AND_STACK_ACCESS_API
bool "Enable kprobes-based dynamic events"
@@ -447,7 +447,7 @@
This option is also required by perf-probe subcommand of perf tools.
If you want to use perf tools, this option is strongly recommended.
-config UPROBE_EVENT
+config UPROBE_EVENTS
bool "Enable uprobes-based dynamic events"
depends on ARCH_SUPPORTS_UPROBES
depends on MMU
@@ -466,7 +466,7 @@
config BPF_EVENTS
depends on BPF_SYSCALL
- depends on (KPROBE_EVENT || UPROBE_EVENT) && PERF_EVENTS
+ depends on (KPROBE_EVENTS || UPROBE_EVENTS) && PERF_EVENTS
bool
default y
help
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index e579808..90f2701 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -57,7 +57,7 @@
obj-$(CONFIG_EVENT_TRACING) += trace_events_trigger.o
obj-$(CONFIG_HIST_TRIGGERS) += trace_events_hist.o
obj-$(CONFIG_BPF_EVENTS) += bpf_trace.o
-obj-$(CONFIG_KPROBE_EVENT) += trace_kprobe.o
+obj-$(CONFIG_KPROBE_EVENTS) += trace_kprobe.o
obj-$(CONFIG_TRACEPOINTS) += power-traces.o
ifeq ($(CONFIG_PM),y)
obj-$(CONFIG_TRACEPOINTS) += rpm-traces.o
@@ -66,7 +66,7 @@
obj-$(CONFIG_KGDB_KDB) += trace_kdb.o
endif
obj-$(CONFIG_PROBE_EVENTS) += trace_probe.o
-obj-$(CONFIG_UPROBE_EVENT) += trace_uprobe.o
+obj-$(CONFIG_UPROBE_EVENTS) += trace_uprobe.o
obj-$(CONFIG_TRACEPOINT_BENCHMARK) += trace_benchmark.o
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 0d1597c..b9691ee 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4416,16 +4416,24 @@
}
__setup("ftrace_graph_notrace=", set_graph_notrace_function);
+static int __init set_graph_max_depth_function(char *str)
+{
+ if (!str)
+ return 0;
+ fgraph_max_depth = simple_strtoul(str, NULL, 0);
+ return 1;
+}
+__setup("ftrace_graph_max_depth=", set_graph_max_depth_function);
+
static void __init set_ftrace_early_graph(char *buf, int enable)
{
int ret;
char *func;
struct ftrace_hash *hash;
- if (enable)
- hash = ftrace_graph_hash;
- else
- hash = ftrace_graph_notrace_hash;
+ hash = alloc_ftrace_hash(FTRACE_HASH_DEFAULT_BITS);
+ if (WARN_ON(!hash))
+ return;
while (buf) {
func = strsep(&buf, ",");
@@ -4435,6 +4443,11 @@
printk(KERN_DEBUG "ftrace: function %s not "
"traceable\n", func);
}
+
+ if (enable)
+ ftrace_graph_hash = hash;
+ else
+ ftrace_graph_notrace_hash = hash;
}
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
@@ -5488,7 +5501,7 @@
* Normally the mcount trampoline will call the ops->func, but there
* are times that it should not. For example, if the ops does not
* have its own recursion protection, then it should call the
- * ftrace_ops_recurs_func() instead.
+ * ftrace_ops_assist_func() instead.
*
* Returns the function that the trampoline should call for @ops.
*/
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 707445c..f351095 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4341,22 +4341,22 @@
"\t\t\t traces\n"
#endif
#endif /* CONFIG_STACK_TRACER */
-#ifdef CONFIG_KPROBE_EVENT
+#ifdef CONFIG_KPROBE_EVENTS
" kprobe_events\t\t- Add/remove/show the kernel dynamic events\n"
"\t\t\t Write into this file to define/undefine new trace events.\n"
#endif
-#ifdef CONFIG_UPROBE_EVENT
+#ifdef CONFIG_UPROBE_EVENTS
" uprobe_events\t\t- Add/remove/show the userspace dynamic events\n"
"\t\t\t Write into this file to define/undefine new trace events.\n"
#endif
-#if defined(CONFIG_KPROBE_EVENT) || defined(CONFIG_UPROBE_EVENT)
+#if defined(CONFIG_KPROBE_EVENTS) || defined(CONFIG_UPROBE_EVENTS)
"\t accepts: event-definitions (one definition per line)\n"
"\t Format: p|r[:[<group>/]<event>] <place> [<args>]\n"
"\t -:[<group>/]<event>\n"
-#ifdef CONFIG_KPROBE_EVENT
+#ifdef CONFIG_KPROBE_EVENTS
"\t place: [<module>:]<symbol>[+<offset>]|<memaddr>\n"
#endif
-#ifdef CONFIG_UPROBE_EVENT
+#ifdef CONFIG_UPROBE_EVENTS
"\t place: <path>:<offset>\n"
#endif
"\t args: <name>=fetcharg[:type]\n"
diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h
index 0c0ae54..903273c 100644
--- a/kernel/trace/trace_probe.h
+++ b/kernel/trace/trace_probe.h
@@ -248,7 +248,7 @@
#define FETCH_TYPE_STRING 0
#define FETCH_TYPE_STRSIZE 1
-#ifdef CONFIG_KPROBE_EVENT
+#ifdef CONFIG_KPROBE_EVENTS
struct symbol_cache;
unsigned long update_symbol_cache(struct symbol_cache *sc);
void free_symbol_cache(struct symbol_cache *sc);
@@ -278,7 +278,7 @@
{
return NULL;
}
-#endif /* CONFIG_KPROBE_EVENT */
+#endif /* CONFIG_KPROBE_EVENTS */
struct probe_arg {
struct fetch_param fetch;
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 1d68b5b..5fb1f2c 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -65,7 +65,7 @@
}
/*
- * When arch-specific code overides this function, the following
+ * When arch-specific code overrides this function, the following
* data should be filled up, assuming stack_trace_max_lock is held to
* prevent concurrent updates.
* stack_trace_index[]
diff --git a/kernel/ucount.c b/kernel/ucount.c
index 62630a4..b4eeee0 100644
--- a/kernel/ucount.c
+++ b/kernel/ucount.c
@@ -144,7 +144,7 @@
new->ns = ns;
new->uid = uid;
- atomic_set(&new->count, 0);
+ new->count = 0;
spin_lock_irq(&ucounts_lock);
ucounts = find_ucounts(ns, uid, hashent);
@@ -155,8 +155,10 @@
ucounts = new;
}
}
- if (!atomic_add_unless(&ucounts->count, 1, INT_MAX))
+ if (ucounts->count == INT_MAX)
ucounts = NULL;
+ else
+ ucounts->count += 1;
spin_unlock_irq(&ucounts_lock);
return ucounts;
}
@@ -165,13 +167,15 @@
{
unsigned long flags;
- if (atomic_dec_and_test(&ucounts->count)) {
- spin_lock_irqsave(&ucounts_lock, flags);
+ spin_lock_irqsave(&ucounts_lock, flags);
+ ucounts->count -= 1;
+ if (!ucounts->count)
hlist_del_init(&ucounts->node);
- spin_unlock_irqrestore(&ucounts_lock, flags);
+ else
+ ucounts = NULL;
+ spin_unlock_irqrestore(&ucounts_lock, flags);
- kfree(ucounts);
- }
+ kfree(ucounts);
}
static inline bool atomic_inc_below(atomic_t *v, int u)
diff --git a/lib/ioremap.c b/lib/ioremap.c
index a3e14ce..4bb3020 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -14,6 +14,7 @@
#include <asm/pgtable.h>
#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
+static int __read_mostly ioremap_p4d_capable;
static int __read_mostly ioremap_pud_capable;
static int __read_mostly ioremap_pmd_capable;
static int __read_mostly ioremap_huge_disabled;
@@ -35,6 +36,11 @@
}
}
+static inline int ioremap_p4d_enabled(void)
+{
+ return ioremap_p4d_capable;
+}
+
static inline int ioremap_pud_enabled(void)
{
return ioremap_pud_capable;
@@ -46,6 +52,7 @@
}
#else /* !CONFIG_HAVE_ARCH_HUGE_VMAP */
+static inline int ioremap_p4d_enabled(void) { return 0; }
static inline int ioremap_pud_enabled(void) { return 0; }
static inline int ioremap_pmd_enabled(void) { return 0; }
#endif /* CONFIG_HAVE_ARCH_HUGE_VMAP */
@@ -94,14 +101,14 @@
return 0;
}
-static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
+static inline int ioremap_pud_range(p4d_t *p4d, unsigned long addr,
unsigned long end, phys_addr_t phys_addr, pgprot_t prot)
{
pud_t *pud;
unsigned long next;
phys_addr -= addr;
- pud = pud_alloc(&init_mm, pgd, addr);
+ pud = pud_alloc(&init_mm, p4d, addr);
if (!pud)
return -ENOMEM;
do {
@@ -120,6 +127,32 @@
return 0;
}
+static inline int ioremap_p4d_range(pgd_t *pgd, unsigned long addr,
+ unsigned long end, phys_addr_t phys_addr, pgprot_t prot)
+{
+ p4d_t *p4d;
+ unsigned long next;
+
+ phys_addr -= addr;
+ p4d = p4d_alloc(&init_mm, pgd, addr);
+ if (!p4d)
+ return -ENOMEM;
+ do {
+ next = p4d_addr_end(addr, end);
+
+ if (ioremap_p4d_enabled() &&
+ ((next - addr) == P4D_SIZE) &&
+ IS_ALIGNED(phys_addr + addr, P4D_SIZE)) {
+ if (p4d_set_huge(p4d, phys_addr + addr, prot))
+ continue;
+ }
+
+ if (ioremap_pud_range(p4d, addr, next, phys_addr + addr, prot))
+ return -ENOMEM;
+ } while (p4d++, addr = next, addr != end);
+ return 0;
+}
+
int ioremap_page_range(unsigned long addr,
unsigned long end, phys_addr_t phys_addr, pgprot_t prot)
{
@@ -135,7 +168,7 @@
pgd = pgd_offset_k(addr);
do {
next = pgd_addr_end(addr, end);
- err = ioremap_pud_range(pgd, addr, next, phys_addr+addr, prot);
+ err = ioremap_p4d_range(pgd, addr, next, phys_addr+addr, prot);
if (err)
break;
} while (pgd++, addr = next, addr != end);
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 5ed506d..691a9ad 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -2129,8 +2129,8 @@
struct ida_bitmap *bitmap = kmalloc(sizeof(*bitmap), gfp);
if (!bitmap)
return 0;
- bitmap = this_cpu_cmpxchg(ida_bitmap, NULL, bitmap);
- kfree(bitmap);
+ if (this_cpu_cmpxchg(ida_bitmap, NULL, bitmap))
+ kfree(bitmap);
}
return 1;
diff --git a/lib/refcount.c b/lib/refcount.c
index 1d33366..aa09ad3 100644
--- a/lib/refcount.c
+++ b/lib/refcount.c
@@ -58,7 +58,7 @@
val = old;
}
- WARN(new == UINT_MAX, "refcount_t: saturated; leaking memory.\n");
+ WARN_ONCE(new == UINT_MAX, "refcount_t: saturated; leaking memory.\n");
return true;
}
@@ -66,7 +66,7 @@
void refcount_add(unsigned int i, refcount_t *r)
{
- WARN(!refcount_add_not_zero(i, r), "refcount_t: addition on 0; use-after-free.\n");
+ WARN_ONCE(!refcount_add_not_zero(i, r), "refcount_t: addition on 0; use-after-free.\n");
}
EXPORT_SYMBOL_GPL(refcount_add);
@@ -97,7 +97,7 @@
val = old;
}
- WARN(new == UINT_MAX, "refcount_t: saturated; leaking memory.\n");
+ WARN_ONCE(new == UINT_MAX, "refcount_t: saturated; leaking memory.\n");
return true;
}
@@ -111,7 +111,7 @@
*/
void refcount_inc(refcount_t *r)
{
- WARN(!refcount_inc_not_zero(r), "refcount_t: increment on 0; use-after-free.\n");
+ WARN_ONCE(!refcount_inc_not_zero(r), "refcount_t: increment on 0; use-after-free.\n");
}
EXPORT_SYMBOL_GPL(refcount_inc);
@@ -125,7 +125,7 @@
new = val - i;
if (new > val) {
- WARN(new > val, "refcount_t: underflow; use-after-free.\n");
+ WARN_ONCE(new > val, "refcount_t: underflow; use-after-free.\n");
return false;
}
@@ -164,7 +164,7 @@
void refcount_dec(refcount_t *r)
{
- WARN(refcount_dec_and_test(r), "refcount_t: decrement hit 0; leaking memory.\n");
+ WARN_ONCE(refcount_dec_and_test(r), "refcount_t: decrement hit 0; leaking memory.\n");
}
EXPORT_SYMBOL_GPL(refcount_dec);
@@ -204,7 +204,7 @@
new = val - 1;
if (new > val) {
- WARN(new > val, "refcount_t: underflow; use-after-free.\n");
+ WARN_ONCE(new > val, "refcount_t: underflow; use-after-free.\n");
return true;
}
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 6d861d0..c6f2a37 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -683,33 +683,26 @@
static void cgwb_bdi_destroy(struct backing_dev_info *bdi)
{
struct radix_tree_iter iter;
- struct rb_node *rbn;
void **slot;
WARN_ON(test_bit(WB_registered, &bdi->wb.state));
spin_lock_irq(&cgwb_lock);
-
radix_tree_for_each_slot(slot, &bdi->cgwb_tree, &iter, 0)
cgwb_kill(*slot);
-
- while ((rbn = rb_first(&bdi->cgwb_congested_tree))) {
- struct bdi_writeback_congested *congested =
- rb_entry(rbn, struct bdi_writeback_congested, rb_node);
-
- rb_erase(rbn, &bdi->cgwb_congested_tree);
- congested->bdi = NULL; /* mark @congested unlinked */
- }
-
spin_unlock_irq(&cgwb_lock);
/*
- * All cgwb's and their congested states must be shutdown and
- * released before returning. Drain the usage counter to wait for
- * all cgwb's and cgwb_congested's ever created on @bdi.
+ * All cgwb's must be shutdown and released before returning. Drain
+ * the usage counter to wait for all cgwb's ever created on @bdi.
*/
atomic_dec(&bdi->usage_cnt);
wait_event(cgwb_release_wait, !atomic_read(&bdi->usage_cnt));
+ /*
+ * Grab back our reference so that we hold it when @bdi gets
+ * re-registered.
+ */
+ atomic_inc(&bdi->usage_cnt);
}
/**
@@ -749,6 +742,21 @@
spin_unlock_irq(&cgwb_lock);
}
+static void cgwb_bdi_exit(struct backing_dev_info *bdi)
+{
+ struct rb_node *rbn;
+
+ spin_lock_irq(&cgwb_lock);
+ while ((rbn = rb_first(&bdi->cgwb_congested_tree))) {
+ struct bdi_writeback_congested *congested =
+ rb_entry(rbn, struct bdi_writeback_congested, rb_node);
+
+ rb_erase(rbn, &bdi->cgwb_congested_tree);
+ congested->bdi = NULL; /* mark @congested unlinked */
+ }
+ spin_unlock_irq(&cgwb_lock);
+}
+
#else /* CONFIG_CGROUP_WRITEBACK */
static int cgwb_bdi_init(struct backing_dev_info *bdi)
@@ -769,7 +777,9 @@
return 0;
}
-static void cgwb_bdi_destroy(struct backing_dev_info *bdi)
+static void cgwb_bdi_destroy(struct backing_dev_info *bdi) { }
+
+static void cgwb_bdi_exit(struct backing_dev_info *bdi)
{
wb_congested_put(bdi->wb_congested);
}
@@ -857,6 +867,8 @@
MINOR(owner->devt));
if (rc)
return rc;
+ /* Leaking owner reference... */
+ WARN_ON(bdi->owner);
bdi->owner = owner;
get_device(owner);
return 0;
@@ -898,6 +910,7 @@
{
WARN_ON_ONCE(bdi->dev);
wb_exit(&bdi->wb);
+ cgwb_bdi_exit(bdi);
}
static void release_bdi(struct kref *ref)
diff --git a/mm/gup.c b/mm/gup.c
index 9c047e9..c74bad1 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -226,6 +226,7 @@
unsigned int *page_mask)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
spinlock_t *ptl;
@@ -243,8 +244,13 @@
pgd = pgd_offset(mm, address);
if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd)))
return no_page_table(vma, flags);
-
- pud = pud_offset(pgd, address);
+ p4d = p4d_offset(pgd, address);
+ if (p4d_none(*p4d))
+ return no_page_table(vma, flags);
+ BUILD_BUG_ON(p4d_huge(*p4d));
+ if (unlikely(p4d_bad(*p4d)))
+ return no_page_table(vma, flags);
+ pud = pud_offset(p4d, address);
if (pud_none(*pud))
return no_page_table(vma, flags);
if (pud_huge(*pud) && vma->vm_flags & VM_HUGETLB) {
@@ -325,6 +331,7 @@
struct page **page)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
@@ -338,7 +345,9 @@
else
pgd = pgd_offset_gate(mm, address);
BUG_ON(pgd_none(*pgd));
- pud = pud_offset(pgd, address);
+ p4d = p4d_offset(pgd, address);
+ BUG_ON(p4d_none(*p4d));
+ pud = pud_offset(p4d, address);
BUG_ON(pud_none(*pud));
pmd = pmd_offset(pud, address);
if (pmd_none(*pmd))
@@ -1400,13 +1409,13 @@
return 1;
}
-static int gup_pud_range(pgd_t pgd, unsigned long addr, unsigned long end,
+static int gup_pud_range(p4d_t p4d, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
unsigned long next;
pud_t *pudp;
- pudp = pud_offset(&pgd, addr);
+ pudp = pud_offset(&p4d, addr);
do {
pud_t pud = READ_ONCE(*pudp);
@@ -1428,6 +1437,31 @@
return 1;
}
+static int gup_p4d_range(pgd_t pgd, unsigned long addr, unsigned long end,
+ int write, struct page **pages, int *nr)
+{
+ unsigned long next;
+ p4d_t *p4dp;
+
+ p4dp = p4d_offset(&pgd, addr);
+ do {
+ p4d_t p4d = READ_ONCE(*p4dp);
+
+ next = p4d_addr_end(addr, end);
+ if (p4d_none(p4d))
+ return 0;
+ BUILD_BUG_ON(p4d_huge(p4d));
+ if (unlikely(is_hugepd(__hugepd(p4d_val(p4d))))) {
+ if (!gup_huge_pd(__hugepd(p4d_val(p4d)), addr,
+ P4D_SHIFT, next, write, pages, nr))
+ return 0;
+ } else if (!gup_p4d_range(p4d, addr, next, write, pages, nr))
+ return 0;
+ } while (p4dp++, addr = next, addr != end);
+
+ return 1;
+}
+
/*
* Like get_user_pages_fast() except it's IRQ-safe in that it won't fall back to
* the regular GUP. It will only return non-negative values.
@@ -1478,7 +1512,7 @@
if (!gup_huge_pd(__hugepd(pgd_val(pgd)), addr,
PGDIR_SHIFT, next, write, pages, &nr))
break;
- } else if (!gup_pud_range(pgd, addr, next, write, pages, &nr))
+ } else if (!gup_p4d_range(pgd, addr, next, write, pages, &nr))
break;
} while (pgdp++, addr = next, addr != end);
local_irq_restore(flags);
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index d36b2af..1ebc93e 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1828,7 +1828,7 @@
VM_BUG_ON_VMA(vma->vm_end < haddr + HPAGE_PUD_SIZE, vma);
VM_BUG_ON(!pud_trans_huge(*pud) && !pud_devmap(*pud));
- count_vm_event(THP_SPLIT_PMD);
+ count_vm_event(THP_SPLIT_PUD);
pudp_huge_clear_flush_notify(vma, haddr, pud);
}
@@ -2048,6 +2048,7 @@
bool freeze, struct page *page)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
@@ -2055,7 +2056,11 @@
if (!pgd_present(*pgd))
return;
- pud = pud_offset(pgd, address);
+ p4d = p4d_offset(pgd, address);
+ if (!p4d_present(*p4d))
+ return;
+
+ pud = pud_offset(p4d, address);
if (!pud_present(*pud))
return;
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index a7aa811..3d0aab9 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4555,7 +4555,8 @@
int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep)
{
pgd_t *pgd = pgd_offset(mm, *addr);
- pud_t *pud = pud_offset(pgd, *addr);
+ p4d_t *p4d = p4d_offset(pgd, *addr);
+ pud_t *pud = pud_offset(p4d, *addr);
BUG_ON(page_count(virt_to_page(ptep)) == 0);
if (page_count(virt_to_page(ptep)) == 1)
@@ -4586,11 +4587,13 @@
unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pte_t *pte = NULL;
pgd = pgd_offset(mm, addr);
- pud = pud_alloc(mm, pgd, addr);
+ p4d = p4d_offset(pgd, addr);
+ pud = pud_alloc(mm, p4d, addr);
if (pud) {
if (sz == PUD_SIZE) {
pte = (pte_t *)pud;
@@ -4610,18 +4613,22 @@
pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
- pmd_t *pmd = NULL;
+ pmd_t *pmd;
pgd = pgd_offset(mm, addr);
- if (pgd_present(*pgd)) {
- pud = pud_offset(pgd, addr);
- if (pud_present(*pud)) {
- if (pud_huge(*pud))
- return (pte_t *)pud;
- pmd = pmd_offset(pud, addr);
- }
- }
+ if (!pgd_present(*pgd))
+ return NULL;
+ p4d = p4d_offset(pgd, addr);
+ if (!p4d_present(*p4d))
+ return NULL;
+ pud = pud_offset(p4d, addr);
+ if (!pud_present(*pud))
+ return NULL;
+ if (pud_huge(*pud))
+ return (pte_t *)pud;
+ pmd = pmd_offset(pud, addr);
return (pte_t *) pmd;
}
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
index 31238da..b96a5f7 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/kasan_init.c
@@ -30,6 +30,9 @@
*/
unsigned char kasan_zero_page[PAGE_SIZE] __page_aligned_bss;
+#if CONFIG_PGTABLE_LEVELS > 4
+p4d_t kasan_zero_p4d[PTRS_PER_P4D] __page_aligned_bss;
+#endif
#if CONFIG_PGTABLE_LEVELS > 3
pud_t kasan_zero_pud[PTRS_PER_PUD] __page_aligned_bss;
#endif
@@ -82,10 +85,10 @@
} while (pmd++, addr = next, addr != end);
}
-static void __init zero_pud_populate(pgd_t *pgd, unsigned long addr,
+static void __init zero_pud_populate(p4d_t *p4d, unsigned long addr,
unsigned long end)
{
- pud_t *pud = pud_offset(pgd, addr);
+ pud_t *pud = pud_offset(p4d, addr);
unsigned long next;
do {
@@ -107,6 +110,23 @@
} while (pud++, addr = next, addr != end);
}
+static void __init zero_p4d_populate(pgd_t *pgd, unsigned long addr,
+ unsigned long end)
+{
+ p4d_t *p4d = p4d_offset(pgd, addr);
+ unsigned long next;
+
+ do {
+ next = p4d_addr_end(addr, end);
+
+ if (p4d_none(*p4d)) {
+ p4d_populate(&init_mm, p4d,
+ early_alloc(PAGE_SIZE, NUMA_NO_NODE));
+ }
+ zero_pud_populate(p4d, addr, next);
+ } while (p4d++, addr = next, addr != end);
+}
+
/**
* kasan_populate_zero_shadow - populate shadow memory region with
* kasan_zero_page
@@ -125,6 +145,7 @@
next = pgd_addr_end(addr, end);
if (IS_ALIGNED(addr, PGDIR_SIZE) && end - addr >= PGDIR_SIZE) {
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
@@ -135,9 +156,22 @@
* 3,2 - level page tables where we don't have
* puds,pmds, so pgd_populate(), pud_populate()
* is noops.
+ *
+ * The ifndef is required to avoid build breakage.
+ *
+ * With 5level-fixup.h, pgd_populate() is not nop and
+ * we reference kasan_zero_p4d. It's not defined
+ * unless 5-level paging enabled.
+ *
+ * The ifndef can be dropped once all KASAN-enabled
+ * architectures will switch to pgtable-nop4d.h.
*/
- pgd_populate(&init_mm, pgd, lm_alias(kasan_zero_pud));
- pud = pud_offset(pgd, addr);
+#ifndef __ARCH_HAS_5LEVEL_HACK
+ pgd_populate(&init_mm, pgd, lm_alias(kasan_zero_p4d));
+#endif
+ p4d = p4d_offset(pgd, addr);
+ p4d_populate(&init_mm, p4d, lm_alias(kasan_zero_pud));
+ pud = pud_offset(p4d, addr);
pud_populate(&init_mm, pud, lm_alias(kasan_zero_pmd));
pmd = pmd_offset(pud, addr);
pmd_populate_kernel(&init_mm, pmd, lm_alias(kasan_zero_pte));
@@ -148,6 +182,6 @@
pgd_populate(&init_mm, pgd,
early_alloc(PAGE_SIZE, NUMA_NO_NODE));
}
- zero_pud_populate(pgd, addr, next);
+ zero_p4d_populate(pgd, addr, next);
} while (pgd++, addr = next, addr != end);
}
diff --git a/mm/kasan/quarantine.c b/mm/kasan/quarantine.c
index 6f1ed16..3a8ddf8 100644
--- a/mm/kasan/quarantine.c
+++ b/mm/kasan/quarantine.c
@@ -25,6 +25,7 @@
#include <linux/printk.h>
#include <linux/shrinker.h>
#include <linux/slab.h>
+#include <linux/srcu.h>
#include <linux/string.h>
#include <linux/types.h>
@@ -103,6 +104,7 @@
/* Total size of all objects in global_quarantine across all batches. */
static unsigned long quarantine_size;
static DEFINE_SPINLOCK(quarantine_lock);
+DEFINE_STATIC_SRCU(remove_cache_srcu);
/* Maximum size of the global queue. */
static unsigned long quarantine_max_size;
@@ -173,17 +175,22 @@
struct qlist_head *q;
struct qlist_head temp = QLIST_INIT;
+ /*
+ * Note: irq must be disabled until after we move the batch to the
+ * global quarantine. Otherwise quarantine_remove_cache() can miss
+ * some objects belonging to the cache if they are in our local temp
+ * list. quarantine_remove_cache() executes on_each_cpu() at the
+ * beginning which ensures that it either sees the objects in per-cpu
+ * lists or in the global quarantine.
+ */
local_irq_save(flags);
q = this_cpu_ptr(&cpu_quarantine);
qlist_put(q, &info->quarantine_link, cache->size);
- if (unlikely(q->bytes > QUARANTINE_PERCPU_SIZE))
+ if (unlikely(q->bytes > QUARANTINE_PERCPU_SIZE)) {
qlist_move_all(q, &temp);
- local_irq_restore(flags);
-
- if (unlikely(!qlist_empty(&temp))) {
- spin_lock_irqsave(&quarantine_lock, flags);
+ spin_lock(&quarantine_lock);
WRITE_ONCE(quarantine_size, quarantine_size + temp.bytes);
qlist_move_all(&temp, &global_quarantine[quarantine_tail]);
if (global_quarantine[quarantine_tail].bytes >=
@@ -196,20 +203,33 @@
if (new_tail != quarantine_head)
quarantine_tail = new_tail;
}
- spin_unlock_irqrestore(&quarantine_lock, flags);
+ spin_unlock(&quarantine_lock);
}
+
+ local_irq_restore(flags);
}
void quarantine_reduce(void)
{
size_t total_size, new_quarantine_size, percpu_quarantines;
unsigned long flags;
+ int srcu_idx;
struct qlist_head to_free = QLIST_INIT;
if (likely(READ_ONCE(quarantine_size) <=
READ_ONCE(quarantine_max_size)))
return;
+ /*
+ * srcu critical section ensures that quarantine_remove_cache()
+ * will not miss objects belonging to the cache while they are in our
+ * local to_free list. srcu is chosen because (1) it gives us private
+ * grace period domain that does not interfere with anything else,
+ * and (2) it allows synchronize_srcu() to return without waiting
+ * if there are no pending read critical sections (which is the
+ * expected case).
+ */
+ srcu_idx = srcu_read_lock(&remove_cache_srcu);
spin_lock_irqsave(&quarantine_lock, flags);
/*
@@ -237,6 +257,7 @@
spin_unlock_irqrestore(&quarantine_lock, flags);
qlist_free_all(&to_free, NULL);
+ srcu_read_unlock(&remove_cache_srcu, srcu_idx);
}
static void qlist_move_cache(struct qlist_head *from,
@@ -280,12 +301,28 @@
unsigned long flags, i;
struct qlist_head to_free = QLIST_INIT;
+ /*
+ * Must be careful to not miss any objects that are being moved from
+ * per-cpu list to the global quarantine in quarantine_put(),
+ * nor objects being freed in quarantine_reduce(). on_each_cpu()
+ * achieves the first goal, while synchronize_srcu() achieves the
+ * second.
+ */
on_each_cpu(per_cpu_remove_cache, cache, 1);
spin_lock_irqsave(&quarantine_lock, flags);
- for (i = 0; i < QUARANTINE_BATCHES; i++)
+ for (i = 0; i < QUARANTINE_BATCHES; i++) {
+ if (qlist_empty(&global_quarantine[i]))
+ continue;
qlist_move_cache(&global_quarantine[i], &to_free, cache);
+ /* Scanning whole quarantine can take a while. */
+ spin_unlock_irqrestore(&quarantine_lock, flags);
+ cond_resched();
+ spin_lock_irqsave(&quarantine_lock, flags);
+ }
spin_unlock_irqrestore(&quarantine_lock, flags);
qlist_free_all(&to_free, cache);
+
+ synchronize_srcu(&remove_cache_srcu);
}
diff --git a/mm/madvise.c b/mm/madvise.c
index dc5927c..7a2abf0 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -513,7 +513,43 @@
if (!can_madv_dontneed_vma(vma))
return -EINVAL;
- userfaultfd_remove(vma, prev, start, end);
+ if (!userfaultfd_remove(vma, start, end)) {
+ *prev = NULL; /* mmap_sem has been dropped, prev is stale */
+
+ down_read(¤t->mm->mmap_sem);
+ vma = find_vma(current->mm, start);
+ if (!vma)
+ return -ENOMEM;
+ if (start < vma->vm_start) {
+ /*
+ * This "vma" under revalidation is the one
+ * with the lowest vma->vm_start where start
+ * is also < vma->vm_end. If start <
+ * vma->vm_start it means an hole materialized
+ * in the user address space within the
+ * virtual range passed to MADV_DONTNEED.
+ */
+ return -ENOMEM;
+ }
+ if (!can_madv_dontneed_vma(vma))
+ return -EINVAL;
+ if (end > vma->vm_end) {
+ /*
+ * Don't fail if end > vma->vm_end. If the old
+ * vma was splitted while the mmap_sem was
+ * released the effect of the concurrent
+ * operation may not cause MADV_DONTNEED to
+ * have an undefined result. There may be an
+ * adjacent next vma that we'll walk
+ * next. userfaultfd_remove() will generate an
+ * UFFD_EVENT_REMOVE repetition on the
+ * end-vma->vm_end range, but the manager can
+ * handle a repetition fine.
+ */
+ end = vma->vm_end;
+ }
+ VM_WARN_ON(start >= end);
+ }
zap_page_range(vma, start, end - start);
return 0;
}
@@ -554,8 +590,10 @@
* mmap_sem.
*/
get_file(f);
- userfaultfd_remove(vma, prev, start, end);
- up_read(¤t->mm->mmap_sem);
+ if (userfaultfd_remove(vma, start, end)) {
+ /* mmap_sem was not released by userfaultfd_remove() */
+ up_read(¤t->mm->mmap_sem);
+ }
error = vfs_fallocate(f,
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
offset, end - start);
diff --git a/mm/memblock.c b/mm/memblock.c
index b64b478..696f06d1 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1118,7 +1118,10 @@
}
} while (left < right);
- return min(PHYS_PFN(type->regions[right].base), max_pfn);
+ if (right == type->cnt)
+ return max_pfn;
+ else
+ return min(PHYS_PFN(type->regions[right].base), max_pfn);
}
/**
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c52ec89..2bd7541 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -466,6 +466,8 @@
struct mem_cgroup_tree_per_node *mctz;
mctz = soft_limit_tree_from_page(page);
+ if (!mctz)
+ return;
/*
* Necessary to update all ancestors when hierarchy is used.
* because their event counter is not touched.
@@ -503,7 +505,8 @@
for_each_node(nid) {
mz = mem_cgroup_nodeinfo(memcg, nid);
mctz = soft_limit_tree_node(nid);
- mem_cgroup_remove_exceeded(mz, mctz);
+ if (mctz)
+ mem_cgroup_remove_exceeded(mz, mctz);
}
}
@@ -2558,7 +2561,7 @@
* is empty. Do it lockless to prevent lock bouncing. Races
* are acceptable as soft limit is best effort anyway.
*/
- if (RB_EMPTY_ROOT(&mctz->rb_root))
+ if (!mctz || RB_EMPTY_ROOT(&mctz->rb_root))
return 0;
/*
@@ -4135,17 +4138,22 @@
kfree(memcg->nodeinfo[node]);
}
-static void mem_cgroup_free(struct mem_cgroup *memcg)
+static void __mem_cgroup_free(struct mem_cgroup *memcg)
{
int node;
- memcg_wb_domain_exit(memcg);
for_each_node(node)
free_mem_cgroup_per_node_info(memcg, node);
free_percpu(memcg->stat);
kfree(memcg);
}
+static void mem_cgroup_free(struct mem_cgroup *memcg)
+{
+ memcg_wb_domain_exit(memcg);
+ __mem_cgroup_free(memcg);
+}
+
static struct mem_cgroup *mem_cgroup_alloc(void)
{
struct mem_cgroup *memcg;
@@ -4196,7 +4204,7 @@
fail:
if (memcg->id.id > 0)
idr_remove(&mem_cgroup_idr, memcg->id.id);
- mem_cgroup_free(memcg);
+ __mem_cgroup_free(memcg);
return NULL;
}
diff --git a/mm/memory.c b/mm/memory.c
index a97a4ce..235ba51 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -445,7 +445,7 @@
mm_dec_nr_pmds(tlb->mm);
}
-static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
+static inline void free_pud_range(struct mmu_gather *tlb, p4d_t *p4d,
unsigned long addr, unsigned long end,
unsigned long floor, unsigned long ceiling)
{
@@ -454,7 +454,7 @@
unsigned long start;
start = addr;
- pud = pud_offset(pgd, addr);
+ pud = pud_offset(p4d, addr);
do {
next = pud_addr_end(addr, end);
if (pud_none_or_clear_bad(pud))
@@ -462,6 +462,39 @@
free_pmd_range(tlb, pud, addr, next, floor, ceiling);
} while (pud++, addr = next, addr != end);
+ start &= P4D_MASK;
+ if (start < floor)
+ return;
+ if (ceiling) {
+ ceiling &= P4D_MASK;
+ if (!ceiling)
+ return;
+ }
+ if (end - 1 > ceiling - 1)
+ return;
+
+ pud = pud_offset(p4d, start);
+ p4d_clear(p4d);
+ pud_free_tlb(tlb, pud, start);
+}
+
+static inline void free_p4d_range(struct mmu_gather *tlb, pgd_t *pgd,
+ unsigned long addr, unsigned long end,
+ unsigned long floor, unsigned long ceiling)
+{
+ p4d_t *p4d;
+ unsigned long next;
+ unsigned long start;
+
+ start = addr;
+ p4d = p4d_offset(pgd, addr);
+ do {
+ next = p4d_addr_end(addr, end);
+ if (p4d_none_or_clear_bad(p4d))
+ continue;
+ free_pud_range(tlb, p4d, addr, next, floor, ceiling);
+ } while (p4d++, addr = next, addr != end);
+
start &= PGDIR_MASK;
if (start < floor)
return;
@@ -473,9 +506,9 @@
if (end - 1 > ceiling - 1)
return;
- pud = pud_offset(pgd, start);
+ p4d = p4d_offset(pgd, start);
pgd_clear(pgd);
- pud_free_tlb(tlb, pud, start);
+ p4d_free_tlb(tlb, p4d, start);
}
/*
@@ -539,7 +572,7 @@
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(pgd))
continue;
- free_pud_range(tlb, pgd, addr, next, floor, ceiling);
+ free_p4d_range(tlb, pgd, addr, next, floor, ceiling);
} while (pgd++, addr = next, addr != end);
}
@@ -658,7 +691,8 @@
pte_t pte, struct page *page)
{
pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
- pud_t *pud = pud_offset(pgd, addr);
+ p4d_t *p4d = p4d_offset(pgd, addr);
+ pud_t *pud = pud_offset(p4d, addr);
pmd_t *pmd = pmd_offset(pud, addr);
struct address_space *mapping;
pgoff_t index;
@@ -1023,16 +1057,16 @@
}
static inline int copy_pud_range(struct mm_struct *dst_mm, struct mm_struct *src_mm,
- pgd_t *dst_pgd, pgd_t *src_pgd, struct vm_area_struct *vma,
+ p4d_t *dst_p4d, p4d_t *src_p4d, struct vm_area_struct *vma,
unsigned long addr, unsigned long end)
{
pud_t *src_pud, *dst_pud;
unsigned long next;
- dst_pud = pud_alloc(dst_mm, dst_pgd, addr);
+ dst_pud = pud_alloc(dst_mm, dst_p4d, addr);
if (!dst_pud)
return -ENOMEM;
- src_pud = pud_offset(src_pgd, addr);
+ src_pud = pud_offset(src_p4d, addr);
do {
next = pud_addr_end(addr, end);
if (pud_trans_huge(*src_pud) || pud_devmap(*src_pud)) {
@@ -1056,6 +1090,28 @@
return 0;
}
+static inline int copy_p4d_range(struct mm_struct *dst_mm, struct mm_struct *src_mm,
+ pgd_t *dst_pgd, pgd_t *src_pgd, struct vm_area_struct *vma,
+ unsigned long addr, unsigned long end)
+{
+ p4d_t *src_p4d, *dst_p4d;
+ unsigned long next;
+
+ dst_p4d = p4d_alloc(dst_mm, dst_pgd, addr);
+ if (!dst_p4d)
+ return -ENOMEM;
+ src_p4d = p4d_offset(src_pgd, addr);
+ do {
+ next = p4d_addr_end(addr, end);
+ if (p4d_none_or_clear_bad(src_p4d))
+ continue;
+ if (copy_pud_range(dst_mm, src_mm, dst_p4d, src_p4d,
+ vma, addr, next))
+ return -ENOMEM;
+ } while (dst_p4d++, src_p4d++, addr = next, addr != end);
+ return 0;
+}
+
int copy_page_range(struct mm_struct *dst_mm, struct mm_struct *src_mm,
struct vm_area_struct *vma)
{
@@ -1111,7 +1167,7 @@
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(src_pgd))
continue;
- if (unlikely(copy_pud_range(dst_mm, src_mm, dst_pgd, src_pgd,
+ if (unlikely(copy_p4d_range(dst_mm, src_mm, dst_pgd, src_pgd,
vma, addr, next))) {
ret = -ENOMEM;
break;
@@ -1267,14 +1323,14 @@
}
static inline unsigned long zap_pud_range(struct mmu_gather *tlb,
- struct vm_area_struct *vma, pgd_t *pgd,
+ struct vm_area_struct *vma, p4d_t *p4d,
unsigned long addr, unsigned long end,
struct zap_details *details)
{
pud_t *pud;
unsigned long next;
- pud = pud_offset(pgd, addr);
+ pud = pud_offset(p4d, addr);
do {
next = pud_addr_end(addr, end);
if (pud_trans_huge(*pud) || pud_devmap(*pud)) {
@@ -1295,6 +1351,25 @@
return addr;
}
+static inline unsigned long zap_p4d_range(struct mmu_gather *tlb,
+ struct vm_area_struct *vma, pgd_t *pgd,
+ unsigned long addr, unsigned long end,
+ struct zap_details *details)
+{
+ p4d_t *p4d;
+ unsigned long next;
+
+ p4d = p4d_offset(pgd, addr);
+ do {
+ next = p4d_addr_end(addr, end);
+ if (p4d_none_or_clear_bad(p4d))
+ continue;
+ next = zap_pud_range(tlb, vma, p4d, addr, next, details);
+ } while (p4d++, addr = next, addr != end);
+
+ return addr;
+}
+
void unmap_page_range(struct mmu_gather *tlb,
struct vm_area_struct *vma,
unsigned long addr, unsigned long end,
@@ -1310,7 +1385,7 @@
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(pgd))
continue;
- next = zap_pud_range(tlb, vma, pgd, addr, next, details);
+ next = zap_p4d_range(tlb, vma, pgd, addr, next, details);
} while (pgd++, addr = next, addr != end);
tlb_end_vma(tlb, vma);
}
@@ -1465,16 +1540,24 @@
pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr,
spinlock_t **ptl)
{
- pgd_t *pgd = pgd_offset(mm, addr);
- pud_t *pud = pud_alloc(mm, pgd, addr);
- if (pud) {
- pmd_t *pmd = pmd_alloc(mm, pud, addr);
- if (pmd) {
- VM_BUG_ON(pmd_trans_huge(*pmd));
- return pte_alloc_map_lock(mm, pmd, addr, ptl);
- }
- }
- return NULL;
+ pgd_t *pgd;
+ p4d_t *p4d;
+ pud_t *pud;
+ pmd_t *pmd;
+
+ pgd = pgd_offset(mm, addr);
+ p4d = p4d_alloc(mm, pgd, addr);
+ if (!p4d)
+ return NULL;
+ pud = pud_alloc(mm, p4d, addr);
+ if (!pud)
+ return NULL;
+ pmd = pmd_alloc(mm, pud, addr);
+ if (!pmd)
+ return NULL;
+
+ VM_BUG_ON(pmd_trans_huge(*pmd));
+ return pte_alloc_map_lock(mm, pmd, addr, ptl);
}
/*
@@ -1740,7 +1823,7 @@
return 0;
}
-static inline int remap_pud_range(struct mm_struct *mm, pgd_t *pgd,
+static inline int remap_pud_range(struct mm_struct *mm, p4d_t *p4d,
unsigned long addr, unsigned long end,
unsigned long pfn, pgprot_t prot)
{
@@ -1748,7 +1831,7 @@
unsigned long next;
pfn -= addr >> PAGE_SHIFT;
- pud = pud_alloc(mm, pgd, addr);
+ pud = pud_alloc(mm, p4d, addr);
if (!pud)
return -ENOMEM;
do {
@@ -1760,6 +1843,26 @@
return 0;
}
+static inline int remap_p4d_range(struct mm_struct *mm, pgd_t *pgd,
+ unsigned long addr, unsigned long end,
+ unsigned long pfn, pgprot_t prot)
+{
+ p4d_t *p4d;
+ unsigned long next;
+
+ pfn -= addr >> PAGE_SHIFT;
+ p4d = p4d_alloc(mm, pgd, addr);
+ if (!p4d)
+ return -ENOMEM;
+ do {
+ next = p4d_addr_end(addr, end);
+ if (remap_pud_range(mm, p4d, addr, next,
+ pfn + (addr >> PAGE_SHIFT), prot))
+ return -ENOMEM;
+ } while (p4d++, addr = next, addr != end);
+ return 0;
+}
+
/**
* remap_pfn_range - remap kernel memory to userspace
* @vma: user vma to map to
@@ -1816,7 +1919,7 @@
flush_cache_range(vma, addr, end);
do {
next = pgd_addr_end(addr, end);
- err = remap_pud_range(mm, pgd, addr, next,
+ err = remap_p4d_range(mm, pgd, addr, next,
pfn + (addr >> PAGE_SHIFT), prot);
if (err)
break;
@@ -1932,7 +2035,7 @@
return err;
}
-static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd,
+static int apply_to_pud_range(struct mm_struct *mm, p4d_t *p4d,
unsigned long addr, unsigned long end,
pte_fn_t fn, void *data)
{
@@ -1940,7 +2043,7 @@
unsigned long next;
int err;
- pud = pud_alloc(mm, pgd, addr);
+ pud = pud_alloc(mm, p4d, addr);
if (!pud)
return -ENOMEM;
do {
@@ -1952,6 +2055,26 @@
return err;
}
+static int apply_to_p4d_range(struct mm_struct *mm, pgd_t *pgd,
+ unsigned long addr, unsigned long end,
+ pte_fn_t fn, void *data)
+{
+ p4d_t *p4d;
+ unsigned long next;
+ int err;
+
+ p4d = p4d_alloc(mm, pgd, addr);
+ if (!p4d)
+ return -ENOMEM;
+ do {
+ next = p4d_addr_end(addr, end);
+ err = apply_to_pud_range(mm, p4d, addr, next, fn, data);
+ if (err)
+ break;
+ } while (p4d++, addr = next, addr != end);
+ return err;
+}
+
/*
* Scan a region of virtual memory, filling in page tables as necessary
* and calling a provided function on each leaf page table.
@@ -1970,7 +2093,7 @@
pgd = pgd_offset(mm, addr);
do {
next = pgd_addr_end(addr, end);
- err = apply_to_pud_range(mm, pgd, addr, next, fn, data);
+ err = apply_to_p4d_range(mm, pgd, addr, next, fn, data);
if (err)
break;
} while (pgd++, addr = next, addr != end);
@@ -3653,11 +3776,15 @@
};
struct mm_struct *mm = vma->vm_mm;
pgd_t *pgd;
+ p4d_t *p4d;
int ret;
pgd = pgd_offset(mm, address);
+ p4d = p4d_alloc(mm, pgd, address);
+ if (!p4d)
+ return VM_FAULT_OOM;
- vmf.pud = pud_alloc(mm, pgd, address);
+ vmf.pud = pud_alloc(mm, p4d, address);
if (!vmf.pud)
return VM_FAULT_OOM;
if (pud_none(*vmf.pud) && transparent_hugepage_enabled(vma)) {
@@ -3779,12 +3906,35 @@
}
EXPORT_SYMBOL_GPL(handle_mm_fault);
+#ifndef __PAGETABLE_P4D_FOLDED
+/*
+ * Allocate p4d page table.
+ * We've already handled the fast-path in-line.
+ */
+int __p4d_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+{
+ p4d_t *new = p4d_alloc_one(mm, address);
+ if (!new)
+ return -ENOMEM;
+
+ smp_wmb(); /* See comment in __pte_alloc */
+
+ spin_lock(&mm->page_table_lock);
+ if (pgd_present(*pgd)) /* Another has populated it */
+ p4d_free(mm, new);
+ else
+ pgd_populate(mm, pgd, new);
+ spin_unlock(&mm->page_table_lock);
+ return 0;
+}
+#endif /* __PAGETABLE_P4D_FOLDED */
+
#ifndef __PAGETABLE_PUD_FOLDED
/*
* Allocate page upper directory.
* We've already handled the fast-path in-line.
*/
-int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+int __pud_alloc(struct mm_struct *mm, p4d_t *p4d, unsigned long address)
{
pud_t *new = pud_alloc_one(mm, address);
if (!new)
@@ -3793,10 +3943,17 @@
smp_wmb(); /* See comment in __pte_alloc */
spin_lock(&mm->page_table_lock);
- if (pgd_present(*pgd)) /* Another has populated it */
+#ifndef __ARCH_HAS_5LEVEL_HACK
+ if (p4d_present(*p4d)) /* Another has populated it */
pud_free(mm, new);
else
- pgd_populate(mm, pgd, new);
+ p4d_populate(mm, p4d, new);
+#else
+ if (pgd_present(*p4d)) /* Another has populated it */
+ pud_free(mm, new);
+ else
+ pgd_populate(mm, p4d, new);
+#endif /* __ARCH_HAS_5LEVEL_HACK */
spin_unlock(&mm->page_table_lock);
return 0;
}
@@ -3839,6 +3996,7 @@
pte_t **ptepp, pmd_t **pmdpp, spinlock_t **ptlp)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *ptep;
@@ -3847,7 +4005,11 @@
if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd)))
goto out;
- pud = pud_offset(pgd, address);
+ p4d = p4d_offset(pgd, address);
+ if (p4d_none(*p4d) || unlikely(p4d_bad(*p4d)))
+ goto out;
+
+ pud = pud_offset(p4d, address);
if (pud_none(*pud) || unlikely(pud_bad(*pud)))
goto out;
diff --git a/mm/mlock.c b/mm/mlock.c
index 1050511..0dd9ca1 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -380,6 +380,7 @@
pte = get_locked_pte(vma->vm_mm, start, &ptl);
/* Make sure we do not cross the page table boundary */
end = pgd_addr_end(start, end);
+ end = p4d_addr_end(start, end);
end = pud_addr_end(start, end);
end = pmd_addr_end(start, end);
@@ -442,7 +443,7 @@
while (start < end) {
struct page *page;
- unsigned int page_mask;
+ unsigned int page_mask = 0;
unsigned long page_increm;
struct pagevec pvec;
struct zone *zone;
@@ -456,8 +457,7 @@
* suits munlock very well (and if somehow an abnormal page
* has sneaked into the range, we won't oops here: great).
*/
- page = follow_page_mask(vma, start, FOLL_GET | FOLL_DUMP,
- &page_mask);
+ page = follow_page(vma, start, FOLL_GET | FOLL_DUMP);
if (page && !IS_ERR(page)) {
if (PageTransTail(page)) {
@@ -468,8 +468,8 @@
/*
* Any THP page found by follow_page_mask() may
* have gotten split before reaching
- * munlock_vma_page(), so we need to recompute
- * the page_mask here.
+ * munlock_vma_page(), so we need to compute
+ * the page_mask here instead.
*/
page_mask = munlock_vma_page(page);
unlock_page(page);
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 848e946..8edd0d5 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -193,14 +193,14 @@
}
static inline unsigned long change_pud_range(struct vm_area_struct *vma,
- pgd_t *pgd, unsigned long addr, unsigned long end,
+ p4d_t *p4d, unsigned long addr, unsigned long end,
pgprot_t newprot, int dirty_accountable, int prot_numa)
{
pud_t *pud;
unsigned long next;
unsigned long pages = 0;
- pud = pud_offset(pgd, addr);
+ pud = pud_offset(p4d, addr);
do {
next = pud_addr_end(addr, end);
if (pud_none_or_clear_bad(pud))
@@ -212,6 +212,26 @@
return pages;
}
+static inline unsigned long change_p4d_range(struct vm_area_struct *vma,
+ pgd_t *pgd, unsigned long addr, unsigned long end,
+ pgprot_t newprot, int dirty_accountable, int prot_numa)
+{
+ p4d_t *p4d;
+ unsigned long next;
+ unsigned long pages = 0;
+
+ p4d = p4d_offset(pgd, addr);
+ do {
+ next = p4d_addr_end(addr, end);
+ if (p4d_none_or_clear_bad(p4d))
+ continue;
+ pages += change_pud_range(vma, p4d, addr, next, newprot,
+ dirty_accountable, prot_numa);
+ } while (p4d++, addr = next, addr != end);
+
+ return pages;
+}
+
static unsigned long change_protection_range(struct vm_area_struct *vma,
unsigned long addr, unsigned long end, pgprot_t newprot,
int dirty_accountable, int prot_numa)
@@ -230,7 +250,7 @@
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(pgd))
continue;
- pages += change_pud_range(vma, pgd, addr, next, newprot,
+ pages += change_p4d_range(vma, pgd, addr, next, newprot,
dirty_accountable, prot_numa);
} while (pgd++, addr = next, addr != end);
diff --git a/mm/mremap.c b/mm/mremap.c
index 8233b01..cd8a1b1 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -32,6 +32,7 @@
static pmd_t *get_old_pmd(struct mm_struct *mm, unsigned long addr)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
@@ -39,7 +40,11 @@
if (pgd_none_or_clear_bad(pgd))
return NULL;
- pud = pud_offset(pgd, addr);
+ p4d = p4d_offset(pgd, addr);
+ if (p4d_none_or_clear_bad(p4d))
+ return NULL;
+
+ pud = pud_offset(p4d, addr);
if (pud_none_or_clear_bad(pud))
return NULL;
@@ -54,11 +59,15 @@
unsigned long addr)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pgd = pgd_offset(mm, addr);
- pud = pud_alloc(mm, pgd, addr);
+ p4d = p4d_alloc(mm, pgd, addr);
+ if (!p4d)
+ return NULL;
+ pud = pud_alloc(mm, p4d, addr);
if (!pud)
return NULL;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index eaa64d2..6cbde31 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -873,7 +873,8 @@
higher_page = page + (combined_pfn - pfn);
buddy_pfn = __find_buddy_pfn(combined_pfn, order + 1);
higher_buddy = higher_page + (buddy_pfn - combined_pfn);
- if (page_is_buddy(higher_page, higher_buddy, order + 1)) {
+ if (pfn_valid_within(buddy_pfn) &&
+ page_is_buddy(higher_page, higher_buddy, order + 1)) {
list_add_tail(&page->lru,
&zone->free_area[order].free_list[migratetype]);
goto out;
diff --git a/mm/page_vma_mapped.c b/mm/page_vma_mapped.c
index a23001a..c4c9def 100644
--- a/mm/page_vma_mapped.c
+++ b/mm/page_vma_mapped.c
@@ -104,6 +104,7 @@
struct mm_struct *mm = pvmw->vma->vm_mm;
struct page *page = pvmw->page;
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
/* The only possible pmd mapping has been handled on last iteration */
@@ -133,7 +134,10 @@
pgd = pgd_offset(mm, pvmw->address);
if (!pgd_present(*pgd))
return false;
- pud = pud_offset(pgd, pvmw->address);
+ p4d = p4d_offset(pgd, pvmw->address);
+ if (!p4d_present(*p4d))
+ return false;
+ pud = pud_offset(p4d, pvmw->address);
if (!pud_present(*pud))
return false;
pvmw->pmd = pmd_offset(pud, pvmw->address);
diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index 0376157..60f7856 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -69,14 +69,14 @@
return err;
}
-static int walk_pud_range(pgd_t *pgd, unsigned long addr, unsigned long end,
+static int walk_pud_range(p4d_t *p4d, unsigned long addr, unsigned long end,
struct mm_walk *walk)
{
pud_t *pud;
unsigned long next;
int err = 0;
- pud = pud_offset(pgd, addr);
+ pud = pud_offset(p4d, addr);
do {
again:
next = pud_addr_end(addr, end);
@@ -113,6 +113,32 @@
return err;
}
+static int walk_p4d_range(pgd_t *pgd, unsigned long addr, unsigned long end,
+ struct mm_walk *walk)
+{
+ p4d_t *p4d;
+ unsigned long next;
+ int err = 0;
+
+ p4d = p4d_offset(pgd, addr);
+ do {
+ next = p4d_addr_end(addr, end);
+ if (p4d_none_or_clear_bad(p4d)) {
+ if (walk->pte_hole)
+ err = walk->pte_hole(addr, next, walk);
+ if (err)
+ break;
+ continue;
+ }
+ if (walk->pmd_entry || walk->pte_entry)
+ err = walk_pud_range(p4d, addr, next, walk);
+ if (err)
+ break;
+ } while (p4d++, addr = next, addr != end);
+
+ return err;
+}
+
static int walk_pgd_range(unsigned long addr, unsigned long end,
struct mm_walk *walk)
{
@@ -131,7 +157,7 @@
continue;
}
if (walk->pmd_entry || walk->pte_entry)
- err = walk_pud_range(pgd, addr, next, walk);
+ err = walk_p4d_range(pgd, addr, next, walk);
if (err)
break;
} while (pgd++, addr = next, addr != end);
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index 4ed5908..c99d951 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -22,6 +22,12 @@
pgd_clear(pgd);
}
+void p4d_clear_bad(p4d_t *p4d)
+{
+ p4d_ERROR(*p4d);
+ p4d_clear(p4d);
+}
+
void pud_clear_bad(pud_t *pud)
{
pud_ERROR(*pud);
diff --git a/mm/rmap.c b/mm/rmap.c
index 2da487d..49ed681 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -684,6 +684,7 @@
pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd = NULL;
pmd_t pmde;
@@ -692,7 +693,11 @@
if (!pgd_present(*pgd))
goto out;
- pud = pud_offset(pgd, address);
+ p4d = p4d_offset(pgd, address);
+ if (!p4d_present(*p4d))
+ goto out;
+
+ pud = pud_offset(p4d, address);
if (!pud_present(*pud))
goto out;
@@ -1316,12 +1321,6 @@
}
while (page_vma_mapped_walk(&pvmw)) {
- subpage = page - page_to_pfn(page) + pte_pfn(*pvmw.pte);
- address = pvmw.address;
-
- /* Unexpected PMD-mapped THP? */
- VM_BUG_ON_PAGE(!pvmw.pte, page);
-
/*
* If the page is mlock()d, we cannot swap it out.
* If it's recently referenced (perhaps page_referenced
@@ -1345,6 +1344,13 @@
continue;
}
+ /* Unexpected PMD-mapped THP? */
+ VM_BUG_ON_PAGE(!pvmw.pte, page);
+
+ subpage = page - page_to_pfn(page) + pte_pfn(*pvmw.pte);
+ address = pvmw.address;
+
+
if (!(flags & TTU_IGNORE_ACCESS)) {
if (ptep_clear_flush_young_notify(vma, address,
pvmw.pte)) {
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index 574c67b..a56c398 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -196,9 +196,9 @@
return pmd;
}
-pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
+pud_t * __meminit vmemmap_pud_populate(p4d_t *p4d, unsigned long addr, int node)
{
- pud_t *pud = pud_offset(pgd, addr);
+ pud_t *pud = pud_offset(p4d, addr);
if (pud_none(*pud)) {
void *p = vmemmap_alloc_block(PAGE_SIZE, node);
if (!p)
@@ -208,6 +208,18 @@
return pud;
}
+p4d_t * __meminit vmemmap_p4d_populate(pgd_t *pgd, unsigned long addr, int node)
+{
+ p4d_t *p4d = p4d_offset(pgd, addr);
+ if (p4d_none(*p4d)) {
+ void *p = vmemmap_alloc_block(PAGE_SIZE, node);
+ if (!p)
+ return NULL;
+ p4d_populate(&init_mm, p4d, p);
+ }
+ return p4d;
+}
+
pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
{
pgd_t *pgd = pgd_offset_k(addr);
@@ -225,6 +237,7 @@
{
unsigned long addr = start;
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
@@ -233,7 +246,10 @@
pgd = vmemmap_pgd_populate(addr, node);
if (!pgd)
return -ENOMEM;
- pud = vmemmap_pud_populate(pgd, addr, node);
+ p4d = vmemmap_p4d_populate(pgd, addr, node);
+ if (!p4d)
+ return -ENOMEM;
+ pud = vmemmap_pud_populate(p4d, addr, node);
if (!pud)
return -ENOMEM;
pmd = vmemmap_pmd_populate(pud, addr, node);
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 521ef9b..1781308 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1517,7 +1517,7 @@
return 0;
}
-static inline int unuse_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
+static inline int unuse_pud_range(struct vm_area_struct *vma, p4d_t *p4d,
unsigned long addr, unsigned long end,
swp_entry_t entry, struct page *page)
{
@@ -1525,7 +1525,7 @@
unsigned long next;
int ret;
- pud = pud_offset(pgd, addr);
+ pud = pud_offset(p4d, addr);
do {
next = pud_addr_end(addr, end);
if (pud_none_or_clear_bad(pud))
@@ -1537,6 +1537,26 @@
return 0;
}
+static inline int unuse_p4d_range(struct vm_area_struct *vma, pgd_t *pgd,
+ unsigned long addr, unsigned long end,
+ swp_entry_t entry, struct page *page)
+{
+ p4d_t *p4d;
+ unsigned long next;
+ int ret;
+
+ p4d = p4d_offset(pgd, addr);
+ do {
+ next = p4d_addr_end(addr, end);
+ if (p4d_none_or_clear_bad(p4d))
+ continue;
+ ret = unuse_pud_range(vma, p4d, addr, next, entry, page);
+ if (ret)
+ return ret;
+ } while (p4d++, addr = next, addr != end);
+ return 0;
+}
+
static int unuse_vma(struct vm_area_struct *vma,
swp_entry_t entry, struct page *page)
{
@@ -1560,7 +1580,7 @@
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(pgd))
continue;
- ret = unuse_pud_range(vma, pgd, addr, next, entry, page);
+ ret = unuse_p4d_range(vma, pgd, addr, next, entry, page);
if (ret)
return ret;
} while (pgd++, addr = next, addr != end);
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 479e631..8bcb501 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -128,19 +128,22 @@
static pmd_t *mm_alloc_pmd(struct mm_struct *mm, unsigned long address)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
- pmd_t *pmd = NULL;
pgd = pgd_offset(mm, address);
- pud = pud_alloc(mm, pgd, address);
- if (pud)
- /*
- * Note that we didn't run this because the pmd was
- * missing, the *pmd may be already established and in
- * turn it may also be a trans_huge_pmd.
- */
- pmd = pmd_alloc(mm, pud, address);
- return pmd;
+ p4d = p4d_alloc(mm, pgd, address);
+ if (!p4d)
+ return NULL;
+ pud = pud_alloc(mm, p4d, address);
+ if (!pud)
+ return NULL;
+ /*
+ * Note that we didn't run this because the pmd was
+ * missing, the *pmd may be already established and in
+ * turn it may also be a trans_huge_pmd.
+ */
+ return pmd_alloc(mm, pud, address);
}
#ifdef CONFIG_HUGETLB_PAGE
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index b4024d6..0dd8022 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -86,12 +86,12 @@
} while (pmd++, addr = next, addr != end);
}
-static void vunmap_pud_range(pgd_t *pgd, unsigned long addr, unsigned long end)
+static void vunmap_pud_range(p4d_t *p4d, unsigned long addr, unsigned long end)
{
pud_t *pud;
unsigned long next;
- pud = pud_offset(pgd, addr);
+ pud = pud_offset(p4d, addr);
do {
next = pud_addr_end(addr, end);
if (pud_clear_huge(pud))
@@ -102,6 +102,22 @@
} while (pud++, addr = next, addr != end);
}
+static void vunmap_p4d_range(pgd_t *pgd, unsigned long addr, unsigned long end)
+{
+ p4d_t *p4d;
+ unsigned long next;
+
+ p4d = p4d_offset(pgd, addr);
+ do {
+ next = p4d_addr_end(addr, end);
+ if (p4d_clear_huge(p4d))
+ continue;
+ if (p4d_none_or_clear_bad(p4d))
+ continue;
+ vunmap_pud_range(p4d, addr, next);
+ } while (p4d++, addr = next, addr != end);
+}
+
static void vunmap_page_range(unsigned long addr, unsigned long end)
{
pgd_t *pgd;
@@ -113,7 +129,7 @@
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(pgd))
continue;
- vunmap_pud_range(pgd, addr, next);
+ vunmap_p4d_range(pgd, addr, next);
} while (pgd++, addr = next, addr != end);
}
@@ -160,13 +176,13 @@
return 0;
}
-static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
+static int vmap_pud_range(p4d_t *p4d, unsigned long addr,
unsigned long end, pgprot_t prot, struct page **pages, int *nr)
{
pud_t *pud;
unsigned long next;
- pud = pud_alloc(&init_mm, pgd, addr);
+ pud = pud_alloc(&init_mm, p4d, addr);
if (!pud)
return -ENOMEM;
do {
@@ -177,6 +193,23 @@
return 0;
}
+static int vmap_p4d_range(pgd_t *pgd, unsigned long addr,
+ unsigned long end, pgprot_t prot, struct page **pages, int *nr)
+{
+ p4d_t *p4d;
+ unsigned long next;
+
+ p4d = p4d_alloc(&init_mm, pgd, addr);
+ if (!p4d)
+ return -ENOMEM;
+ do {
+ next = p4d_addr_end(addr, end);
+ if (vmap_pud_range(p4d, addr, next, prot, pages, nr))
+ return -ENOMEM;
+ } while (p4d++, addr = next, addr != end);
+ return 0;
+}
+
/*
* Set up page tables in kva (addr, end). The ptes shall have prot "prot", and
* will have pfns corresponding to the "pages" array.
@@ -196,7 +229,7 @@
pgd = pgd_offset_k(addr);
do {
next = pgd_addr_end(addr, end);
- err = vmap_pud_range(pgd, addr, next, prot, pages, &nr);
+ err = vmap_p4d_range(pgd, addr, next, prot, pages, &nr);
if (err)
return err;
} while (pgd++, addr = next, addr != end);
@@ -237,6 +270,10 @@
unsigned long addr = (unsigned long) vmalloc_addr;
struct page *page = NULL;
pgd_t *pgd = pgd_offset_k(addr);
+ p4d_t *p4d;
+ pud_t *pud;
+ pmd_t *pmd;
+ pte_t *ptep, pte;
/*
* XXX we might need to change this if we add VIRTUAL_BUG_ON for
@@ -244,21 +281,23 @@
*/
VIRTUAL_BUG_ON(!is_vmalloc_or_module_addr(vmalloc_addr));
- if (!pgd_none(*pgd)) {
- pud_t *pud = pud_offset(pgd, addr);
- if (!pud_none(*pud)) {
- pmd_t *pmd = pmd_offset(pud, addr);
- if (!pmd_none(*pmd)) {
- pte_t *ptep, pte;
+ if (pgd_none(*pgd))
+ return NULL;
+ p4d = p4d_offset(pgd, addr);
+ if (p4d_none(*p4d))
+ return NULL;
+ pud = pud_offset(p4d, addr);
+ if (pud_none(*pud))
+ return NULL;
+ pmd = pmd_offset(pud, addr);
+ if (pmd_none(*pmd))
+ return NULL;
- ptep = pte_offset_map(pmd, addr);
- pte = *ptep;
- if (pte_present(pte))
- page = pte_page(pte);
- pte_unmap(ptep);
- }
- }
- }
+ ptep = pte_offset_map(pmd, addr);
+ pte = *ptep;
+ if (pte_present(pte))
+ page = pte_page(pte);
+ pte_unmap(ptep);
return page;
}
EXPORT_SYMBOL(vmalloc_to_page);
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 69f9aff..b1947f0 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1065,6 +1065,9 @@
"thp_split_page_failed",
"thp_deferred_split_page",
"thp_split_pmd",
+#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
+ "thp_split_pud",
+#endif
"thp_zero_page_alloc",
"thp_zero_page_alloc_failed",
#endif
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 464e885..1085338 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -230,6 +230,7 @@
Opt_osdkeepalivetimeout,
Opt_mount_timeout,
Opt_osd_idle_ttl,
+ Opt_osd_request_timeout,
Opt_last_int,
/* int args above */
Opt_fsid,
@@ -256,6 +257,7 @@
{Opt_osdkeepalivetimeout, "osdkeepalive=%d"},
{Opt_mount_timeout, "mount_timeout=%d"},
{Opt_osd_idle_ttl, "osd_idle_ttl=%d"},
+ {Opt_osd_request_timeout, "osd_request_timeout=%d"},
/* int args above */
{Opt_fsid, "fsid=%s"},
{Opt_name, "name=%s"},
@@ -361,6 +363,7 @@
opt->osd_keepalive_timeout = CEPH_OSD_KEEPALIVE_DEFAULT;
opt->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT;
opt->osd_idle_ttl = CEPH_OSD_IDLE_TTL_DEFAULT;
+ opt->osd_request_timeout = CEPH_OSD_REQUEST_TIMEOUT_DEFAULT;
/* get mon ip(s) */
/* ip1[:port1][,ip2[:port2]...] */
@@ -473,6 +476,15 @@
}
opt->mount_timeout = msecs_to_jiffies(intval * 1000);
break;
+ case Opt_osd_request_timeout:
+ /* 0 is "wait forever" (i.e. infinite timeout) */
+ if (intval < 0 || intval > INT_MAX / 1000) {
+ pr_err("osd_request_timeout out of range\n");
+ err = -EINVAL;
+ goto out;
+ }
+ opt->osd_request_timeout = msecs_to_jiffies(intval * 1000);
+ break;
case Opt_share:
opt->flags &= ~CEPH_OPT_NOSHARE;
@@ -557,6 +569,9 @@
if (opt->osd_keepalive_timeout != CEPH_OSD_KEEPALIVE_DEFAULT)
seq_printf(m, "osdkeepalivetimeout=%d,",
jiffies_to_msecs(opt->osd_keepalive_timeout) / 1000);
+ if (opt->osd_request_timeout != CEPH_OSD_REQUEST_TIMEOUT_DEFAULT)
+ seq_printf(m, "osd_request_timeout=%d,",
+ jiffies_to_msecs(opt->osd_request_timeout) / 1000);
/* drop redundant comma */
if (m->count != pos)
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index b65bbf9..e15ea9e 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1709,6 +1709,8 @@
req->r_flags |= CEPH_OSD_FLAG_ONDISK;
atomic_inc(&req->r_osdc->num_requests);
+
+ req->r_start_stamp = jiffies;
}
static void submit_request(struct ceph_osd_request *req, bool wrlocked)
@@ -1789,6 +1791,14 @@
ceph_osdc_put_request(req);
}
+static void abort_request(struct ceph_osd_request *req, int err)
+{
+ dout("%s req %p tid %llu err %d\n", __func__, req, req->r_tid, err);
+
+ cancel_map_check(req);
+ complete_request(req, err);
+}
+
static void check_pool_dne(struct ceph_osd_request *req)
{
struct ceph_osd_client *osdc = req->r_osdc;
@@ -2487,6 +2497,7 @@
container_of(work, struct ceph_osd_client, timeout_work.work);
struct ceph_options *opts = osdc->client->options;
unsigned long cutoff = jiffies - opts->osd_keepalive_timeout;
+ unsigned long expiry_cutoff = jiffies - opts->osd_request_timeout;
LIST_HEAD(slow_osds);
struct rb_node *n, *p;
@@ -2502,15 +2513,23 @@
struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
bool found = false;
- for (p = rb_first(&osd->o_requests); p; p = rb_next(p)) {
+ for (p = rb_first(&osd->o_requests); p; ) {
struct ceph_osd_request *req =
rb_entry(p, struct ceph_osd_request, r_node);
+ p = rb_next(p); /* abort_request() */
+
if (time_before(req->r_stamp, cutoff)) {
dout(" req %p tid %llu on osd%d is laggy\n",
req, req->r_tid, osd->o_osd);
found = true;
}
+ if (opts->osd_request_timeout &&
+ time_before(req->r_start_stamp, expiry_cutoff)) {
+ pr_err_ratelimited("tid %llu on osd%d timeout\n",
+ req->r_tid, osd->o_osd);
+ abort_request(req, -ETIMEDOUT);
+ }
}
for (p = rb_first(&osd->o_linger_requests); p; p = rb_next(p)) {
struct ceph_osd_linger_request *lreq =
@@ -2530,6 +2549,21 @@
list_move_tail(&osd->o_keepalive_item, &slow_osds);
}
+ if (opts->osd_request_timeout) {
+ for (p = rb_first(&osdc->homeless_osd.o_requests); p; ) {
+ struct ceph_osd_request *req =
+ rb_entry(p, struct ceph_osd_request, r_node);
+
+ p = rb_next(p); /* abort_request() */
+
+ if (time_before(req->r_start_stamp, expiry_cutoff)) {
+ pr_err_ratelimited("tid %llu on osd%d timeout\n",
+ req->r_tid, osdc->homeless_osd.o_osd);
+ abort_request(req, -ETIMEDOUT);
+ }
+ }
+ }
+
if (atomic_read(&osdc->num_homeless) || !list_empty(&slow_osds))
maybe_request_map(osdc);
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 6824c0e..ffe9e90 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -390,9 +390,8 @@
dout("crush decode tunable chooseleaf_stable = %d\n",
c->chooseleaf_stable);
- crush_finalize(c);
-
done:
+ crush_finalize(c);
dout("crush_decode success\n");
return c;
@@ -1380,7 +1379,6 @@
if ((map->osd_state[osd] & CEPH_OSD_EXISTS) &&
(xorstate & CEPH_OSD_EXISTS)) {
pr_info("osd%d does not exist\n", osd);
- map->osd_weight[osd] = CEPH_OSD_IN;
ret = set_primary_affinity(map, osd,
CEPH_OSD_DEFAULT_PRIMARY_AFFINITY);
if (ret)
diff --git a/scripts/gcc-plugins/sancov_plugin.c b/scripts/gcc-plugins/sancov_plugin.c
index 9b0b5cb..0f98634 100644
--- a/scripts/gcc-plugins/sancov_plugin.c
+++ b/scripts/gcc-plugins/sancov_plugin.c
@@ -133,7 +133,7 @@
#if BUILDING_GCC_VERSION < 6000
register_callback(plugin_name, PLUGIN_START_UNIT, &sancov_start_unit, NULL);
register_callback(plugin_name, PLUGIN_REGISTER_GGC_ROOTS, NULL, (void *)>_ggc_r_gt_sancov);
- register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &sancov_plugin_pass_info);
+ register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &sancov_pass_info);
#endif
return 0;
diff --git a/scripts/module-common.lds b/scripts/module-common.lds
index cf7e52e..9b6e246 100644
--- a/scripts/module-common.lds
+++ b/scripts/module-common.lds
@@ -22,4 +22,6 @@
. = ALIGN(8);
.init_array 0 : { *(SORT(.init_array.*)) *(.init_array) }
+
+ __jump_table 0 : ALIGN(8) { KEEP(*(__jump_table)) }
}
diff --git a/scripts/spelling.txt b/scripts/spelling.txt
index 0458b03..0545f5a 100644
--- a/scripts/spelling.txt
+++ b/scripts/spelling.txt
@@ -372,6 +372,8 @@
disapear||disappear
disapeared||disappeared
disappared||disappeared
+disble||disable
+disbled||disabled
disconnet||disconnect
discontinous||discontinuous
dispertion||dispersion
@@ -732,6 +734,7 @@
overaall||overall
overhread||overhead
overlaping||overlapping
+overide||override
overrided||overridden
overriden||overridden
overun||overrun
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index ec1067a..08b1399 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -89,7 +89,7 @@
writel(val, acp_mmio + (reg * 4));
}
-/* Configure a given dma channel parameters - enable/disble,
+/* Configure a given dma channel parameters - enable/disable,
* number of descriptors, priority
*/
static void config_acp_dma_channel(void __iomem *acp_mmio, u8 ch_num,
diff --git a/tools/lguest/lguest.c b/tools/lguest/lguest.c
index 11c8d9b..5d19fdf 100644
--- a/tools/lguest/lguest.c
+++ b/tools/lguest/lguest.c
@@ -1387,7 +1387,7 @@
/* Allow writing to any other BAR, or expansion ROM */
iowrite(portoff, val, mask, &d->config_words[reg]);
return true;
- /* We let them overide latency timer and cacheline size */
+ /* We let them override latency timer and cacheline size */
} else if (&d->config_words[reg] == (void *)&d->config.cacheline_size) {
/* Only let them change the first two fields. */
if (mask == 0xFFFFFFFF)
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index e2efddf..1f5300e 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -132,7 +132,7 @@
Q = @
endif
-# Disable command line variables (CFLAGS) overide from top
+# Disable command line variables (CFLAGS) override from top
# level Makefile (perf), otherwise build Makefile will get
# the same command line setup.
MAKEOVERRIDES=
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 47076b1..9b8555e 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -135,7 +135,7 @@
Q = @
endif
-# Disable command line variables (CFLAGS) overide from top
+# Disable command line variables (CFLAGS) override from top
# level Makefile (perf), otherwise build Makefile will get
# the same command line setup.
MAKEOVERRIDES=
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 6634280..0c03538 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -140,7 +140,7 @@
* struct pevent_plugin_option PEVENT_PLUGIN_OPTIONS[] = {
* {
* .name = "option-name",
- * .plugin_alias = "overide-file-name", (optional)
+ * .plugin_alias = "override-file-name", (optional)
* .description = "description of option to show users",
* },
* {
diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c
index 4cfdbb5..066086d 100644
--- a/tools/objtool/builtin-check.c
+++ b/tools/objtool/builtin-check.c
@@ -805,11 +805,20 @@
insn->jump_dest->offset > orig_insn->offset))
break;
+ /* look for a relocation which references .rodata */
text_rela = find_rela_by_dest_range(insn->sec, insn->offset,
insn->len);
- if (text_rela && text_rela->sym == file->rodata->sym)
- return find_rela_by_dest(file->rodata,
- text_rela->addend);
+ if (!text_rela || text_rela->sym != file->rodata->sym)
+ continue;
+
+ /*
+ * Make sure the .rodata address isn't associated with a
+ * symbol. gcc jump tables are anonymous data.
+ */
+ if (find_symbol_containing(file->rodata, text_rela->addend))
+ continue;
+
+ return find_rela_by_dest(file->rodata, text_rela->addend);
}
return NULL;
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index 0d7983a..d897702 100644
--- a/tools/objtool/elf.c
+++ b/tools/objtool/elf.c
@@ -85,6 +85,18 @@
return NULL;
}
+struct symbol *find_symbol_containing(struct section *sec, unsigned long offset)
+{
+ struct symbol *sym;
+
+ list_for_each_entry(sym, &sec->symbol_list, list)
+ if (sym->type != STT_SECTION &&
+ offset >= sym->offset && offset < sym->offset + sym->len)
+ return sym;
+
+ return NULL;
+}
+
struct rela *find_rela_by_dest_range(struct section *sec, unsigned long offset,
unsigned int len)
{
diff --git a/tools/objtool/elf.h b/tools/objtool/elf.h
index aa1ff65..731973e 100644
--- a/tools/objtool/elf.h
+++ b/tools/objtool/elf.h
@@ -79,6 +79,7 @@
struct elf *elf_open(const char *name);
struct section *find_section_by_name(struct elf *elf, const char *name);
struct symbol *find_symbol_by_offset(struct section *sec, unsigned long offset);
+struct symbol *find_symbol_containing(struct section *sec, unsigned long offset);
struct rela *find_rela_by_dest(struct section *sec, unsigned long offset);
struct rela *find_rela_by_dest_range(struct section *sec, unsigned long offset,
unsigned int len);
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
index 7913363..4f3c758 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
@@ -31,7 +31,7 @@
#error Instruction buffer size too small
#endif
-/* Based on branch_type() from perf_event_intel_lbr.c */
+/* Based on branch_type() from arch/x86/events/intel/lbr.c */
static void intel_pt_insn_decoder(struct insn *insn,
struct intel_pt_insn *intel_pt_insn)
{
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 6e4eb2f..0c8b61f 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1880,6 +1880,7 @@
sub wait_for_input
{
my ($fp, $time) = @_;
+ my $start_time;
my $rin;
my $rout;
my $nr;
@@ -1895,17 +1896,22 @@
vec($rin, fileno($fp), 1) = 1;
vec($rin, fileno(\*STDIN), 1) = 1;
+ $start_time = time;
+
while (1) {
$nr = select($rout=$rin, undef, undef, $time);
- if ($nr <= 0) {
- return undef;
- }
+ last if ($nr <= 0);
# copy data from stdin to the console
if (vec($rout, fileno(\*STDIN), 1) == 1) {
- sysread(\*STDIN, $buf, 1000);
- syswrite($fp, $buf, 1000);
+ $nr = sysread(\*STDIN, $buf, 1000);
+ syswrite($fp, $buf, $nr) if ($nr > 0);
+ }
+
+ # The timeout is based on time waiting for the fp data
+ if (vec($rout, fileno($fp), 1) != 1) {
+ last if (defined($time) && (time - $start_time > $time));
next;
}
@@ -1917,12 +1923,11 @@
last if ($ch eq "\n");
}
- if (!length($line)) {
- return undef;
- }
+ last if (!length($line));
return $line;
}
+ return undef;
}
sub reboot_to {
diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index f11315b..6a9480c 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -1,6 +1,7 @@
CFLAGS += -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address
-LDFLAGS += -lpthread -lurcu
+LDFLAGS += -fsanitize=address
+LDLIBS+= -lpthread -lurcu
TARGETS = main idr-test multiorder
CORE_OFILES := radix-tree.o idr.o linux.o test.o find_bit.o
OFILES = main.o $(CORE_OFILES) regression1.o regression2.o regression3.o \
@@ -10,23 +11,25 @@
SHIFT=3
endif
+ifeq ($(BUILD), 32)
+ CFLAGS += -m32
+ LDFLAGS += -m32
+endif
+
targets: mapshift $(TARGETS)
main: $(OFILES)
- $(CC) $(CFLAGS) $(LDFLAGS) $^ -o main
idr-test: idr-test.o $(CORE_OFILES)
- $(CC) $(CFLAGS) $(LDFLAGS) $^ -o idr-test
multiorder: multiorder.o $(CORE_OFILES)
- $(CC) $(CFLAGS) $(LDFLAGS) $^ -o multiorder
clean:
$(RM) $(TARGETS) *.o radix-tree.c idr.c generated/map-shift.h
vpath %.c ../../lib
-$(OFILES): *.h */*.h generated/map-shift.h \
+$(OFILES): Makefile *.h */*.h generated/map-shift.h \
../../include/linux/*.h \
../../include/asm/*.h \
../../../include/linux/radix-tree.h \
@@ -41,7 +44,7 @@
.PHONY: mapshift
mapshift:
- @if ! grep -qw $(SHIFT) generated/map-shift.h; then \
+ @if ! grep -qws $(SHIFT) generated/map-shift.h; then \
echo "#define RADIX_TREE_MAP_SHIFT $(SHIFT)" > \
generated/map-shift.h; \
fi
diff --git a/tools/testing/radix-tree/benchmark.c b/tools/testing/radix-tree/benchmark.c
index 9b09ddf..99c40f3 100644
--- a/tools/testing/radix-tree/benchmark.c
+++ b/tools/testing/radix-tree/benchmark.c
@@ -17,6 +17,9 @@
#include <time.h>
#include "test.h"
+#define for_each_index(i, base, order) \
+ for (i = base; i < base + (1 << order); i++)
+
#define NSEC_PER_SEC 1000000000L
static long long benchmark_iter(struct radix_tree_root *root, bool tagged)
@@ -57,27 +60,176 @@
return nsec;
}
+static void benchmark_insert(struct radix_tree_root *root,
+ unsigned long size, unsigned long step, int order)
+{
+ struct timespec start, finish;
+ unsigned long index;
+ long long nsec;
+
+ clock_gettime(CLOCK_MONOTONIC, &start);
+
+ for (index = 0 ; index < size ; index += step)
+ item_insert_order(root, index, order);
+
+ clock_gettime(CLOCK_MONOTONIC, &finish);
+
+ nsec = (finish.tv_sec - start.tv_sec) * NSEC_PER_SEC +
+ (finish.tv_nsec - start.tv_nsec);
+
+ printv(2, "Size: %8ld, step: %8ld, order: %d, insertion: %15lld ns\n",
+ size, step, order, nsec);
+}
+
+static void benchmark_tagging(struct radix_tree_root *root,
+ unsigned long size, unsigned long step, int order)
+{
+ struct timespec start, finish;
+ unsigned long index;
+ long long nsec;
+
+ clock_gettime(CLOCK_MONOTONIC, &start);
+
+ for (index = 0 ; index < size ; index += step)
+ radix_tree_tag_set(root, index, 0);
+
+ clock_gettime(CLOCK_MONOTONIC, &finish);
+
+ nsec = (finish.tv_sec - start.tv_sec) * NSEC_PER_SEC +
+ (finish.tv_nsec - start.tv_nsec);
+
+ printv(2, "Size: %8ld, step: %8ld, order: %d, tagging: %17lld ns\n",
+ size, step, order, nsec);
+}
+
+static void benchmark_delete(struct radix_tree_root *root,
+ unsigned long size, unsigned long step, int order)
+{
+ struct timespec start, finish;
+ unsigned long index, i;
+ long long nsec;
+
+ clock_gettime(CLOCK_MONOTONIC, &start);
+
+ for (index = 0 ; index < size ; index += step)
+ for_each_index(i, index, order)
+ item_delete(root, i);
+
+ clock_gettime(CLOCK_MONOTONIC, &finish);
+
+ nsec = (finish.tv_sec - start.tv_sec) * NSEC_PER_SEC +
+ (finish.tv_nsec - start.tv_nsec);
+
+ printv(2, "Size: %8ld, step: %8ld, order: %d, deletion: %16lld ns\n",
+ size, step, order, nsec);
+}
+
static void benchmark_size(unsigned long size, unsigned long step, int order)
{
RADIX_TREE(tree, GFP_KERNEL);
long long normal, tagged;
- unsigned long index;
- for (index = 0 ; index < size ; index += step) {
- item_insert_order(&tree, index, order);
- radix_tree_tag_set(&tree, index, 0);
- }
+ benchmark_insert(&tree, size, step, order);
+ benchmark_tagging(&tree, size, step, order);
tagged = benchmark_iter(&tree, true);
normal = benchmark_iter(&tree, false);
- printv(2, "Size %ld, step %6ld, order %d tagged %10lld ns, normal %10lld ns\n",
- size, step, order, tagged, normal);
+ printv(2, "Size: %8ld, step: %8ld, order: %d, tagged iteration: %8lld ns\n",
+ size, step, order, tagged);
+ printv(2, "Size: %8ld, step: %8ld, order: %d, normal iteration: %8lld ns\n",
+ size, step, order, normal);
+
+ benchmark_delete(&tree, size, step, order);
item_kill_tree(&tree);
rcu_barrier();
}
+static long long __benchmark_split(unsigned long index,
+ int old_order, int new_order)
+{
+ struct timespec start, finish;
+ long long nsec;
+ RADIX_TREE(tree, GFP_ATOMIC);
+
+ item_insert_order(&tree, index, old_order);
+
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ radix_tree_split(&tree, index, new_order);
+ clock_gettime(CLOCK_MONOTONIC, &finish);
+ nsec = (finish.tv_sec - start.tv_sec) * NSEC_PER_SEC +
+ (finish.tv_nsec - start.tv_nsec);
+
+ item_kill_tree(&tree);
+
+ return nsec;
+
+}
+
+static void benchmark_split(unsigned long size, unsigned long step)
+{
+ int i, j, idx;
+ long long nsec = 0;
+
+
+ for (idx = 0; idx < size; idx += step) {
+ for (i = 3; i < 11; i++) {
+ for (j = 0; j < i; j++) {
+ nsec += __benchmark_split(idx, i, j);
+ }
+ }
+ }
+
+ printv(2, "Size %8ld, step %8ld, split time %10lld ns\n",
+ size, step, nsec);
+
+}
+
+static long long __benchmark_join(unsigned long index,
+ unsigned order1, unsigned order2)
+{
+ unsigned long loc;
+ struct timespec start, finish;
+ long long nsec;
+ void *item, *item2 = item_create(index + 1, order1);
+ RADIX_TREE(tree, GFP_KERNEL);
+
+ item_insert_order(&tree, index, order2);
+ item = radix_tree_lookup(&tree, index);
+
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ radix_tree_join(&tree, index + 1, order1, item2);
+ clock_gettime(CLOCK_MONOTONIC, &finish);
+ nsec = (finish.tv_sec - start.tv_sec) * NSEC_PER_SEC +
+ (finish.tv_nsec - start.tv_nsec);
+
+ loc = find_item(&tree, item);
+ if (loc == -1)
+ free(item);
+
+ item_kill_tree(&tree);
+
+ return nsec;
+}
+
+static void benchmark_join(unsigned long step)
+{
+ int i, j, idx;
+ long long nsec = 0;
+
+ for (idx = 0; idx < 1 << 10; idx += step) {
+ for (i = 1; i < 15; i++) {
+ for (j = 0; j < i; j++) {
+ nsec += __benchmark_join(idx, i, j);
+ }
+ }
+ }
+
+ printv(2, "Size %8d, step %8ld, join time %10lld ns\n",
+ 1 << 10, step, nsec);
+}
+
void benchmark(void)
{
unsigned long size[] = {1 << 10, 1 << 20, 0};
@@ -95,4 +247,11 @@
for (c = 0; size[c]; c++)
for (s = 0; step[s]; s++)
benchmark_size(size[c], step[s] << 9, 9);
+
+ for (c = 0; size[c]; c++)
+ for (s = 0; step[s]; s++)
+ benchmark_split(size[c], step[s]);
+
+ for (s = 0; step[s]; s++)
+ benchmark_join(step[s]);
}
diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c
index a26098c..30cd0b2 100644
--- a/tools/testing/radix-tree/idr-test.c
+++ b/tools/testing/radix-tree/idr-test.c
@@ -153,6 +153,30 @@
idr_destroy(&idr);
}
+void idr_get_next_test(void)
+{
+ unsigned long i;
+ int nextid;
+ DEFINE_IDR(idr);
+
+ int indices[] = {4, 7, 9, 15, 65, 128, 1000, 99999, 0};
+
+ for(i = 0; indices[i]; i++) {
+ struct item *item = item_create(indices[i], 0);
+ assert(idr_alloc(&idr, item, indices[i], indices[i+1],
+ GFP_KERNEL) == indices[i]);
+ }
+
+ for(i = 0, nextid = 0; indices[i]; i++) {
+ idr_get_next(&idr, &nextid);
+ assert(nextid == indices[i]);
+ nextid++;
+ }
+
+ idr_for_each(&idr, item_idr_free, &idr);
+ idr_destroy(&idr);
+}
+
void idr_checks(void)
{
unsigned long i;
@@ -202,6 +226,7 @@
idr_alloc_test();
idr_null_test();
idr_nowait_test();
+ idr_get_next_test();
}
/*
@@ -338,7 +363,7 @@
{
DEFINE_IDA(ida);
DECLARE_BITMAP(bitmap, 2048);
- int id;
+ int id, err;
unsigned int i;
time_t s = time(NULL);
@@ -352,8 +377,11 @@
ida_remove(&ida, bit);
} else {
__set_bit(bit, bitmap);
- ida_pre_get(&ida, GFP_KERNEL);
- assert(!ida_get_new_above(&ida, bit, &id));
+ do {
+ ida_pre_get(&ida, GFP_KERNEL);
+ err = ida_get_new_above(&ida, bit, &id);
+ } while (err == -ENOMEM);
+ assert(!err);
assert(id == bit);
}
}
@@ -362,6 +390,24 @@
goto repeat;
}
+void ida_simple_get_remove_test(void)
+{
+ DEFINE_IDA(ida);
+ unsigned long i;
+
+ for (i = 0; i < 10000; i++) {
+ assert(ida_simple_get(&ida, 0, 20000, GFP_KERNEL) == i);
+ }
+ assert(ida_simple_get(&ida, 5, 30, GFP_KERNEL) < 0);
+
+ for (i = 0; i < 10000; i++) {
+ ida_simple_remove(&ida, i);
+ }
+ assert(ida_is_empty(&ida));
+
+ ida_destroy(&ida);
+}
+
void ida_checks(void)
{
DEFINE_IDA(ida);
@@ -428,15 +474,41 @@
ida_check_max();
ida_check_conv();
ida_check_random();
+ ida_simple_get_remove_test();
radix_tree_cpu_dead(1);
}
+static void *ida_random_fn(void *arg)
+{
+ rcu_register_thread();
+ ida_check_random();
+ rcu_unregister_thread();
+ return NULL;
+}
+
+void ida_thread_tests(void)
+{
+ pthread_t threads[10];
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(threads); i++)
+ if (pthread_create(&threads[i], NULL, ida_random_fn, NULL)) {
+ perror("creating ida thread");
+ exit(1);
+ }
+
+ while (i--)
+ pthread_join(threads[i], NULL);
+}
+
int __weak main(void)
{
radix_tree_init();
idr_checks();
ida_checks();
+ ida_thread_tests();
+ radix_tree_cpu_dead(1);
rcu_barrier();
if (nr_allocated)
printf("nr_allocated = %d\n", nr_allocated);
diff --git a/tools/testing/radix-tree/main.c b/tools/testing/radix-tree/main.c
index b829127..bc9a784 100644
--- a/tools/testing/radix-tree/main.c
+++ b/tools/testing/radix-tree/main.c
@@ -368,6 +368,7 @@
iteration_test(0, 10 + 90 * long_run);
iteration_test(7, 10 + 90 * long_run);
single_thread_tests(long_run);
+ ida_thread_tests();
/* Free any remaining preallocated nodes */
radix_tree_cpu_dead(0);
diff --git a/tools/testing/radix-tree/tag_check.c b/tools/testing/radix-tree/tag_check.c
index d4ff009..36dcf7d 100644
--- a/tools/testing/radix-tree/tag_check.c
+++ b/tools/testing/radix-tree/tag_check.c
@@ -330,6 +330,34 @@
item_kill_tree(&tree);
}
+void radix_tree_clear_tags_test(void)
+{
+ unsigned long index;
+ struct radix_tree_node *node;
+ struct radix_tree_iter iter;
+ void **slot;
+
+ RADIX_TREE(tree, GFP_KERNEL);
+
+ item_insert(&tree, 0);
+ item_tag_set(&tree, 0, 0);
+ __radix_tree_lookup(&tree, 0, &node, &slot);
+ radix_tree_clear_tags(&tree, node, slot);
+ assert(item_tag_get(&tree, 0, 0) == 0);
+
+ for (index = 0; index < 1000; index++) {
+ item_insert(&tree, index);
+ item_tag_set(&tree, index, 0);
+ }
+
+ radix_tree_for_each_slot(slot, &tree, &iter, 0) {
+ radix_tree_clear_tags(&tree, iter.node, slot);
+ assert(item_tag_get(&tree, iter.index, 0) == 0);
+ }
+
+ item_kill_tree(&tree);
+}
+
void tag_check(void)
{
single_check();
@@ -347,4 +375,5 @@
thrash_tags();
rcu_barrier();
printv(2, "after thrash_tags: %d allocated\n", nr_allocated);
+ radix_tree_clear_tags_test();
}
diff --git a/tools/testing/radix-tree/test.h b/tools/testing/radix-tree/test.h
index b30e11d..0f8220c 100644
--- a/tools/testing/radix-tree/test.h
+++ b/tools/testing/radix-tree/test.h
@@ -36,6 +36,7 @@
void benchmark(void);
void idr_checks(void);
void ida_checks(void);
+void ida_thread_tests(void);
struct item *
item_tag_set(struct radix_tree_root *root, unsigned long index, int tag);
diff --git a/tools/testing/selftests/powerpc/harness.c b/tools/testing/selftests/powerpc/harness.c
index 248a820..66d31de 100644
--- a/tools/testing/selftests/powerpc/harness.c
+++ b/tools/testing/selftests/powerpc/harness.c
@@ -114,9 +114,11 @@
rc = run_test(test_function, name);
- if (rc == MAGIC_SKIP_RETURN_VALUE)
+ if (rc == MAGIC_SKIP_RETURN_VALUE) {
test_skip(name);
- else
+ /* so that skipped test is not marked as failed */
+ rc = 0;
+ } else
test_finish(name, rc);
return rc;
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index 4cff7e7..41642ba 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -1,5 +1,9 @@
# Makefile for vm selftests
+ifndef OUTPUT
+ OUTPUT := $(shell pwd)
+endif
+
CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS)
LDLIBS = -lrt
TEST_GEN_FILES = compaction_test
diff --git a/tools/testing/selftests/x86/fsgsbase.c b/tools/testing/selftests/x86/fsgsbase.c
index 5b2b4b3..b4967d8 100644
--- a/tools/testing/selftests/x86/fsgsbase.c
+++ b/tools/testing/selftests/x86/fsgsbase.c
@@ -245,7 +245,7 @@
long ret;
asm volatile ("int $0x80"
: "=a" (ret) : "a" (243), "b" (low_desc)
- : "flags");
+ : "r8", "r9", "r10", "r11");
memcpy(&desc, low_desc, sizeof(desc));
munmap(low_desc, sizeof(desc));
diff --git a/tools/testing/selftests/x86/ldt_gdt.c b/tools/testing/selftests/x86/ldt_gdt.c
index 4af4707..f612161 100644
--- a/tools/testing/selftests/x86/ldt_gdt.c
+++ b/tools/testing/selftests/x86/ldt_gdt.c
@@ -45,6 +45,12 @@
#define AR_DB (1 << 22)
#define AR_G (1 << 23)
+#ifdef __x86_64__
+# define INT80_CLOBBERS "r8", "r9", "r10", "r11"
+#else
+# define INT80_CLOBBERS
+#endif
+
static int nerrs;
/* Points to an array of 1024 ints, each holding its own index. */
@@ -588,7 +594,7 @@
asm volatile ("int $0x80"
: "=a" (ret), "+m" (low_user_desc) :
"a" (243), "b" (low_user_desc)
- : "flags");
+ : INT80_CLOBBERS);
return ret;
}
@@ -657,7 +663,7 @@
"+a" (eax)
: "m" (low_user_desc_clear),
[arg1] "r" ((unsigned int)(unsigned long)low_user_desc_clear)
- : "flags");
+ : INT80_CLOBBERS);
if (sel != 0) {
result = "FAIL";
@@ -688,7 +694,7 @@
"+a" (eax)
: "m" (low_user_desc_clear),
[arg1] "r" ((unsigned int)(unsigned long)low_user_desc_clear)
- : "flags");
+ : INT80_CLOBBERS);
if (sel != 0) {
result = "FAIL";
@@ -721,7 +727,7 @@
"+a" (eax)
: "m" (low_user_desc_clear),
[arg1] "r" ((unsigned int)(unsigned long)low_user_desc_clear)
- : "flags");
+ : INT80_CLOBBERS);
#ifdef __x86_64__
syscall(SYS_arch_prctl, ARCH_GET_FS, &new_base);
@@ -774,7 +780,7 @@
"+a" (eax)
: "m" (low_user_desc_clear),
[arg1] "r" ((unsigned int)(unsigned long)low_user_desc_clear)
- : "flags");
+ : INT80_CLOBBERS);
#ifdef __x86_64__
syscall(SYS_arch_prctl, ARCH_GET_GS, &new_base);
diff --git a/tools/testing/selftests/x86/ptrace_syscall.c b/tools/testing/selftests/x86/ptrace_syscall.c
index b037ce9c..eaea924 100644
--- a/tools/testing/selftests/x86/ptrace_syscall.c
+++ b/tools/testing/selftests/x86/ptrace_syscall.c
@@ -58,7 +58,8 @@
asm volatile ("int $0x80"
: "+a" (args->nr),
"+b" (args->arg0), "+c" (args->arg1), "+d" (args->arg2),
- "+S" (args->arg3), "+D" (args->arg4), "+r" (bp));
+ "+S" (args->arg3), "+D" (args->arg4), "+r" (bp)
+ : : "r8", "r9", "r10", "r11");
args->arg5 = bp;
#else
sys32_helper(args, int80_and_ret);
diff --git a/tools/testing/selftests/x86/single_step_syscall.c b/tools/testing/selftests/x86/single_step_syscall.c
index 50c2635..a48da95 100644
--- a/tools/testing/selftests/x86/single_step_syscall.c
+++ b/tools/testing/selftests/x86/single_step_syscall.c
@@ -56,9 +56,11 @@
#ifdef __x86_64__
# define REG_IP REG_RIP
# define WIDTH "q"
+# define INT80_CLOBBERS "r8", "r9", "r10", "r11"
#else
# define REG_IP REG_EIP
# define WIDTH "l"
+# define INT80_CLOBBERS
#endif
static unsigned long get_eflags(void)
@@ -140,7 +142,8 @@
printf("[RUN]\tSet TF and check int80\n");
set_eflags(get_eflags() | X86_EFLAGS_TF);
- asm volatile ("int $0x80" : "=a" (tmp) : "a" (SYS_getpid));
+ asm volatile ("int $0x80" : "=a" (tmp) : "a" (SYS_getpid)
+ : INT80_CLOBBERS);
check_result();
/*
