Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
"Mostly irqchip driver fixes, plus a symbol export"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kernel/irq: Export irq_set_parent()
irqchip/gic: Add missing \n to CPU IF adjustment message
irqchip/jcore: Don't show Kconfig menu item for driver
irqchip/eznps: Drop pointless static qualifier in nps400_of_init()
irqchip/gic-v3-its: Fix entry size mask for GITS_BASER
irqchip/gic-v3-its: Fix 64bit GIC{R,ITS}_TYPER accesses
diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl
index 4ba0a2a..640f65e 100644
--- a/Documentation/ABI/testing/sysfs-class-cxl
+++ b/Documentation/ABI/testing/sysfs-class-cxl
@@ -220,8 +220,11 @@
Date: October 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: write only
- Writing 1 will issue a PERST to card which may cause the card
- to reload the FPGA depending on load_image_on_perst.
+ Writing 1 will issue a PERST to card provided there are no
+ contexts active on any one of the card AFUs. This may cause
+ the card to reload the FPGA depending on load_image_on_perst.
+ Writing -1 will do a force PERST irrespective of any active
+ contexts on the card AFUs.
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/perst_reloads_same_image (not in a guest)
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
index 5e60ad1..2ad18c4 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
@@ -43,7 +43,9 @@
GPID0 GPID2 GPIE0 I2C10 I2C11 I2C12 I2C13 I2C14 I2C3 I2C4 I2C5 I2C6 I2C7 I2C8
I2C9 MAC1LINK MDIO1 MDIO2 OSCCLK PEWAKE PWM0 PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7
-RGMII1 RGMII2 RMII1 RMII2 SD1 SPI1 TIMER4 TIMER5 TIMER6 TIMER7 TIMER8
+RGMII1 RGMII2 RMII1 RMII2 SD1 SPI1 SPI1DEBUG SPI1PASSTHRU TIMER4 TIMER5 TIMER6
+TIMER7 TIMER8 VGABIOSROM
+
Examples:
diff --git a/MAINTAINERS b/MAINTAINERS
index 1cd38a7..c447953 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4620,8 +4620,9 @@
EXTENSIBLE FIRMWARE INTERFACE (EFI)
M: Matt Fleming <matt@codeblueprint.co.uk>
+M: Ard Biesheuvel <ard.biesheuvel@linaro.org>
L: linux-efi@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
S: Maintained
F: Documentation/efi-stub.txt
F: arch/ia64/kernel/efi.c
@@ -8212,7 +8213,7 @@
MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
M: Ulf Hansson <ulf.hansson@linaro.org>
L: linux-mmc@vger.kernel.org
-T: git git://git.linaro.org/people/ulf.hansson/mmc.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git
S: Maintained
F: Documentation/devicetree/bindings/mmc/
F: drivers/mmc/
@@ -9299,7 +9300,7 @@
F: drivers/pci/host/*designware*
PCI DRIVER FOR SYNOPSYS PROTOTYPING DEVICE
-M: Joao Pinto <jpinto@synopsys.com>
+M: Jose Abreu <Jose.Abreu@synopsys.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/pci/designware-pcie.txt
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index d9ee817..940dfb4 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -157,14 +157,16 @@
static inline int
read_int(struct task_struct *task, unsigned long addr, int * data)
{
- int copied = access_process_vm(task, addr, data, sizeof(int), 0);
+ int copied = access_process_vm(task, addr, data, sizeof(int),
+ FOLL_FORCE);
return (copied == sizeof(int)) ? 0 : -EIO;
}
static inline int
write_int(struct task_struct *task, unsigned long addr, int data)
{
- int copied = access_process_vm(task, addr, &data, sizeof(int), 1);
+ int copied = access_process_vm(task, addr, &data, sizeof(int),
+ FOLL_FORCE | FOLL_WRITE);
return (copied == sizeof(int)) ? 0 : -EIO;
}
@@ -281,7 +283,8 @@
/* When I and D space are separate, these will need to be fixed. */
case PTRACE_PEEKTEXT: /* read word at location addr. */
case PTRACE_PEEKDATA:
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
+ copied = access_process_vm(child, addr, &tmp, sizeof(tmp),
+ FOLL_FORCE);
ret = -EIO;
if (copied != sizeof(tmp))
break;
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 03e9273..08bb84f 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -1312,6 +1312,13 @@
goto out_err;
}
+ err = create_hyp_mappings(kvm_ksym_ref(__bss_start),
+ kvm_ksym_ref(__bss_stop), PAGE_HYP_RO);
+ if (err) {
+ kvm_err("Cannot map bss section\n");
+ goto out_err;
+ }
+
/*
* Map the Hyp stack pages
*/
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 30398db..969ef88 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -915,7 +915,7 @@
config RANDOMIZE_MODULE_REGION_FULL
bool "Randomize the module region independently from the core kernel"
- depends on RANDOMIZE_BASE
+ depends on RANDOMIZE_BASE && !DYNAMIC_FTRACE
default y
help
Randomizes the location of the module region without considering the
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index ab51aed..3635b86 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -15,7 +15,7 @@
GZFLAGS :=-9
ifneq ($(CONFIG_RELOCATABLE),)
-LDFLAGS_vmlinux += -pie -Bsymbolic
+LDFLAGS_vmlinux += -pie -shared -Bsymbolic
endif
ifeq ($(CONFIG_ARM64_ERRATUM_843419),y)
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 758d74f..a27c324 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -94,7 +94,7 @@
u16 capability;
int def_scope; /* default scope */
bool (*matches)(const struct arm64_cpu_capabilities *caps, int scope);
- void (*enable)(void *); /* Called on all active CPUs */
+ int (*enable)(void *); /* Called on all active CPUs */
union {
struct { /* To be used for erratum handling only */
u32 midr_model;
diff --git a/arch/arm64/include/asm/exec.h b/arch/arm64/include/asm/exec.h
index db0563c..f7865dd 100644
--- a/arch/arm64/include/asm/exec.h
+++ b/arch/arm64/include/asm/exec.h
@@ -18,6 +18,9 @@
#ifndef __ASM_EXEC_H
#define __ASM_EXEC_H
+#include <linux/sched.h>
+
extern unsigned long arch_align_stack(unsigned long sp);
+void uao_thread_switch(struct task_struct *next);
#endif /* __ASM_EXEC_H */
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index fd9d5fd..f5ea0ba 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -178,11 +178,6 @@
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_ISV);
}
-static inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu)
-{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WNR);
-}
-
static inline bool kvm_vcpu_dabt_issext(const struct kvm_vcpu *vcpu)
{
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SSE);
@@ -203,6 +198,12 @@
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_S1PTW);
}
+static inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu)
+{
+ return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WNR) ||
+ kvm_vcpu_dabt_iss1tw(vcpu); /* AF/DBM update */
+}
+
static inline bool kvm_vcpu_dabt_is_cm(const struct kvm_vcpu *vcpu)
{
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_CM);
diff --git a/arch/arm64/include/asm/module.h b/arch/arm64/include/asm/module.h
index e12af67..06ff7fd 100644
--- a/arch/arm64/include/asm/module.h
+++ b/arch/arm64/include/asm/module.h
@@ -17,6 +17,7 @@
#define __ASM_MODULE_H
#include <asm-generic/module.h>
+#include <asm/memory.h>
#define MODULE_ARCH_VERMAGIC "aarch64"
@@ -32,6 +33,10 @@
Elf64_Sym *sym);
#ifdef CONFIG_RANDOMIZE_BASE
+#ifdef CONFIG_MODVERSIONS
+#define ARCH_RELOCATES_KCRCTAB
+#define reloc_start (kimage_vaddr - KIMAGE_VADDR)
+#endif
extern u64 module_alloc_base;
#else
#define module_alloc_base ((u64)_etext - MODULES_VSIZE)
diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h
index 2fee2f5..5394c84 100644
--- a/arch/arm64/include/asm/percpu.h
+++ b/arch/arm64/include/asm/percpu.h
@@ -44,48 +44,44 @@
\
switch (size) { \
case 1: \
- do { \
- asm ("//__per_cpu_" #op "_1\n" \
- "ldxrb %w[ret], %[ptr]\n" \
+ asm ("//__per_cpu_" #op "_1\n" \
+ "1: ldxrb %w[ret], %[ptr]\n" \
#asm_op " %w[ret], %w[ret], %w[val]\n" \
- "stxrb %w[loop], %w[ret], %[ptr]\n" \
- : [loop] "=&r" (loop), [ret] "=&r" (ret), \
- [ptr] "+Q"(*(u8 *)ptr) \
- : [val] "Ir" (val)); \
- } while (loop); \
+ " stxrb %w[loop], %w[ret], %[ptr]\n" \
+ " cbnz %w[loop], 1b" \
+ : [loop] "=&r" (loop), [ret] "=&r" (ret), \
+ [ptr] "+Q"(*(u8 *)ptr) \
+ : [val] "Ir" (val)); \
break; \
case 2: \
- do { \
- asm ("//__per_cpu_" #op "_2\n" \
- "ldxrh %w[ret], %[ptr]\n" \
+ asm ("//__per_cpu_" #op "_2\n" \
+ "1: ldxrh %w[ret], %[ptr]\n" \
#asm_op " %w[ret], %w[ret], %w[val]\n" \
- "stxrh %w[loop], %w[ret], %[ptr]\n" \
- : [loop] "=&r" (loop), [ret] "=&r" (ret), \
- [ptr] "+Q"(*(u16 *)ptr) \
- : [val] "Ir" (val)); \
- } while (loop); \
+ " stxrh %w[loop], %w[ret], %[ptr]\n" \
+ " cbnz %w[loop], 1b" \
+ : [loop] "=&r" (loop), [ret] "=&r" (ret), \
+ [ptr] "+Q"(*(u16 *)ptr) \
+ : [val] "Ir" (val)); \
break; \
case 4: \
- do { \
- asm ("//__per_cpu_" #op "_4\n" \
- "ldxr %w[ret], %[ptr]\n" \
+ asm ("//__per_cpu_" #op "_4\n" \
+ "1: ldxr %w[ret], %[ptr]\n" \
#asm_op " %w[ret], %w[ret], %w[val]\n" \
- "stxr %w[loop], %w[ret], %[ptr]\n" \
- : [loop] "=&r" (loop), [ret] "=&r" (ret), \
- [ptr] "+Q"(*(u32 *)ptr) \
- : [val] "Ir" (val)); \
- } while (loop); \
+ " stxr %w[loop], %w[ret], %[ptr]\n" \
+ " cbnz %w[loop], 1b" \
+ : [loop] "=&r" (loop), [ret] "=&r" (ret), \
+ [ptr] "+Q"(*(u32 *)ptr) \
+ : [val] "Ir" (val)); \
break; \
case 8: \
- do { \
- asm ("//__per_cpu_" #op "_8\n" \
- "ldxr %[ret], %[ptr]\n" \
+ asm ("//__per_cpu_" #op "_8\n" \
+ "1: ldxr %[ret], %[ptr]\n" \
#asm_op " %[ret], %[ret], %[val]\n" \
- "stxr %w[loop], %[ret], %[ptr]\n" \
- : [loop] "=&r" (loop), [ret] "=&r" (ret), \
- [ptr] "+Q"(*(u64 *)ptr) \
- : [val] "Ir" (val)); \
- } while (loop); \
+ " stxr %w[loop], %[ret], %[ptr]\n" \
+ " cbnz %w[loop], 1b" \
+ : [loop] "=&r" (loop), [ret] "=&r" (ret), \
+ [ptr] "+Q"(*(u64 *)ptr) \
+ : [val] "Ir" (val)); \
break; \
default: \
BUILD_BUG(); \
@@ -150,44 +146,40 @@
switch (size) {
case 1:
- do {
- asm ("//__percpu_xchg_1\n"
- "ldxrb %w[ret], %[ptr]\n"
- "stxrb %w[loop], %w[val], %[ptr]\n"
- : [loop] "=&r"(loop), [ret] "=&r"(ret),
- [ptr] "+Q"(*(u8 *)ptr)
- : [val] "r" (val));
- } while (loop);
+ asm ("//__percpu_xchg_1\n"
+ "1: ldxrb %w[ret], %[ptr]\n"
+ " stxrb %w[loop], %w[val], %[ptr]\n"
+ " cbnz %w[loop], 1b"
+ : [loop] "=&r"(loop), [ret] "=&r"(ret),
+ [ptr] "+Q"(*(u8 *)ptr)
+ : [val] "r" (val));
break;
case 2:
- do {
- asm ("//__percpu_xchg_2\n"
- "ldxrh %w[ret], %[ptr]\n"
- "stxrh %w[loop], %w[val], %[ptr]\n"
- : [loop] "=&r"(loop), [ret] "=&r"(ret),
- [ptr] "+Q"(*(u16 *)ptr)
- : [val] "r" (val));
- } while (loop);
+ asm ("//__percpu_xchg_2\n"
+ "1: ldxrh %w[ret], %[ptr]\n"
+ " stxrh %w[loop], %w[val], %[ptr]\n"
+ " cbnz %w[loop], 1b"
+ : [loop] "=&r"(loop), [ret] "=&r"(ret),
+ [ptr] "+Q"(*(u16 *)ptr)
+ : [val] "r" (val));
break;
case 4:
- do {
- asm ("//__percpu_xchg_4\n"
- "ldxr %w[ret], %[ptr]\n"
- "stxr %w[loop], %w[val], %[ptr]\n"
- : [loop] "=&r"(loop), [ret] "=&r"(ret),
- [ptr] "+Q"(*(u32 *)ptr)
- : [val] "r" (val));
- } while (loop);
+ asm ("//__percpu_xchg_4\n"
+ "1: ldxr %w[ret], %[ptr]\n"
+ " stxr %w[loop], %w[val], %[ptr]\n"
+ " cbnz %w[loop], 1b"
+ : [loop] "=&r"(loop), [ret] "=&r"(ret),
+ [ptr] "+Q"(*(u32 *)ptr)
+ : [val] "r" (val));
break;
case 8:
- do {
- asm ("//__percpu_xchg_8\n"
- "ldxr %[ret], %[ptr]\n"
- "stxr %w[loop], %[val], %[ptr]\n"
- : [loop] "=&r"(loop), [ret] "=&r"(ret),
- [ptr] "+Q"(*(u64 *)ptr)
- : [val] "r" (val));
- } while (loop);
+ asm ("//__percpu_xchg_8\n"
+ "1: ldxr %[ret], %[ptr]\n"
+ " stxr %w[loop], %[val], %[ptr]\n"
+ " cbnz %w[loop], 1b"
+ : [loop] "=&r"(loop), [ret] "=&r"(ret),
+ [ptr] "+Q"(*(u64 *)ptr)
+ : [val] "r" (val));
break;
default:
BUILD_BUG();
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index df2e53d..60e3482 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -188,8 +188,8 @@
#endif
-void cpu_enable_pan(void *__unused);
-void cpu_enable_uao(void *__unused);
-void cpu_enable_cache_maint_trap(void *__unused);
+int cpu_enable_pan(void *__unused);
+int cpu_enable_uao(void *__unused);
+int cpu_enable_cache_maint_trap(void *__unused);
#endif /* __ASM_PROCESSOR_H */
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index e8d46e8..6c80b36 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -286,7 +286,7 @@
#define write_sysreg_s(v, r) do { \
u64 __val = (u64)v; \
- asm volatile("msr_s " __stringify(r) ", %0" : : "rZ" (__val)); \
+ asm volatile("msr_s " __stringify(r) ", %x0" : : "rZ" (__val)); \
} while (0)
static inline void config_sctlr_el1(u32 clear, u32 set)
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index bcaf6fb..55d0adb 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -21,6 +21,7 @@
/*
* User space memory access functions
*/
+#include <linux/bitops.h>
#include <linux/kasan-checks.h>
#include <linux/string.h>
#include <linux/thread_info.h>
@@ -102,6 +103,13 @@
flag; \
})
+/*
+ * When dealing with data aborts or instruction traps we may end up with
+ * a tagged userland pointer. Clear the tag to get a sane pointer to pass
+ * on to access_ok(), for instance.
+ */
+#define untagged_addr(addr) sign_extend64(addr, 55)
+
#define access_ok(type, addr, size) __range_ok(addr, size)
#define user_addr_max get_fs
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index 42ffdb5..b0988bb 100644
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -280,35 +280,43 @@
/*
* Error-checking SWP macros implemented using ldxr{b}/stxr{b}
*/
-#define __user_swpX_asm(data, addr, res, temp, B) \
+
+/* Arbitrary constant to ensure forward-progress of the LL/SC loop */
+#define __SWP_LL_SC_LOOPS 4
+
+#define __user_swpX_asm(data, addr, res, temp, temp2, B) \
__asm__ __volatile__( \
+ " mov %w3, %w7\n" \
ALTERNATIVE("nop", SET_PSTATE_PAN(0), ARM64_HAS_PAN, \
CONFIG_ARM64_PAN) \
- "0: ldxr"B" %w2, [%3]\n" \
- "1: stxr"B" %w0, %w1, [%3]\n" \
+ "0: ldxr"B" %w2, [%4]\n" \
+ "1: stxr"B" %w0, %w1, [%4]\n" \
" cbz %w0, 2f\n" \
- " mov %w0, %w4\n" \
+ " sub %w3, %w3, #1\n" \
+ " cbnz %w3, 0b\n" \
+ " mov %w0, %w5\n" \
" b 3f\n" \
"2:\n" \
" mov %w1, %w2\n" \
"3:\n" \
" .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
- "4: mov %w0, %w5\n" \
+ "4: mov %w0, %w6\n" \
" b 3b\n" \
" .popsection" \
_ASM_EXTABLE(0b, 4b) \
_ASM_EXTABLE(1b, 4b) \
ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN, \
CONFIG_ARM64_PAN) \
- : "=&r" (res), "+r" (data), "=&r" (temp) \
- : "r" (addr), "i" (-EAGAIN), "i" (-EFAULT) \
+ : "=&r" (res), "+r" (data), "=&r" (temp), "=&r" (temp2) \
+ : "r" (addr), "i" (-EAGAIN), "i" (-EFAULT), \
+ "i" (__SWP_LL_SC_LOOPS) \
: "memory")
-#define __user_swp_asm(data, addr, res, temp) \
- __user_swpX_asm(data, addr, res, temp, "")
-#define __user_swpb_asm(data, addr, res, temp) \
- __user_swpX_asm(data, addr, res, temp, "b")
+#define __user_swp_asm(data, addr, res, temp, temp2) \
+ __user_swpX_asm(data, addr, res, temp, temp2, "")
+#define __user_swpb_asm(data, addr, res, temp, temp2) \
+ __user_swpX_asm(data, addr, res, temp, temp2, "b")
/*
* Bit 22 of the instruction encoding distinguishes between
@@ -328,12 +336,12 @@
}
while (1) {
- unsigned long temp;
+ unsigned long temp, temp2;
if (type == TYPE_SWPB)
- __user_swpb_asm(*data, address, res, temp);
+ __user_swpb_asm(*data, address, res, temp, temp2);
else
- __user_swp_asm(*data, address, res, temp);
+ __user_swp_asm(*data, address, res, temp, temp2);
if (likely(res != -EAGAIN) || signal_pending(current))
break;
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 0150394..b75e917 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -39,10 +39,11 @@
(arm64_ftr_reg_ctrel0.sys_val & arm64_ftr_reg_ctrel0.strict_mask);
}
-static void cpu_enable_trap_ctr_access(void *__unused)
+static int cpu_enable_trap_ctr_access(void *__unused)
{
/* Clear SCTLR_EL1.UCT */
config_sctlr_el1(SCTLR_EL1_UCT, 0);
+ return 0;
}
#define MIDR_RANGE(model, min, max) \
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index d577f26..c02504e 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -19,7 +19,9 @@
#define pr_fmt(fmt) "CPU features: " fmt
#include <linux/bsearch.h>
+#include <linux/cpumask.h>
#include <linux/sort.h>
+#include <linux/stop_machine.h>
#include <linux/types.h>
#include <asm/cpu.h>
#include <asm/cpufeature.h>
@@ -941,7 +943,13 @@
{
for (; caps->matches; caps++)
if (caps->enable && cpus_have_cap(caps->capability))
- on_each_cpu(caps->enable, NULL, true);
+ /*
+ * Use stop_machine() as it schedules the work allowing
+ * us to modify PSTATE, instead of on_each_cpu() which
+ * uses an IPI, giving us a PSTATE that disappears when
+ * we return.
+ */
+ stop_machine(caps->enable, NULL, cpu_online_mask);
}
/*
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 427f6d3..332e331 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -586,8 +586,9 @@
b.lt 4f // Skip if no PMU present
mrs x0, pmcr_el0 // Disable debug access traps
ubfx x0, x0, #11, #5 // to EL2 and allow access to
- msr mdcr_el2, x0 // all PMU counters from EL1
4:
+ csel x0, xzr, x0, lt // all PMU counters from EL1
+ msr mdcr_el2, x0 // (if they exist)
/* Stage-2 translation */
msr vttbr_el2, xzr
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 27b2f13..01753cd 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -49,6 +49,7 @@
#include <asm/alternative.h>
#include <asm/compat.h>
#include <asm/cacheflush.h>
+#include <asm/exec.h>
#include <asm/fpsimd.h>
#include <asm/mmu_context.h>
#include <asm/processor.h>
@@ -186,10 +187,19 @@
printk("pc : [<%016llx>] lr : [<%016llx>] pstate: %08llx\n",
regs->pc, lr, regs->pstate);
printk("sp : %016llx\n", sp);
- for (i = top_reg; i >= 0; i--) {
+
+ i = top_reg;
+
+ while (i >= 0) {
printk("x%-2d: %016llx ", i, regs->regs[i]);
- if (i % 2 == 0)
- printk("\n");
+ i--;
+
+ if (i % 2 == 0) {
+ pr_cont("x%-2d: %016llx ", i, regs->regs[i]);
+ i--;
+ }
+
+ pr_cont("\n");
}
printk("\n");
}
@@ -301,7 +311,7 @@
}
/* Restore the UAO state depending on next's addr_limit */
-static void uao_thread_switch(struct task_struct *next)
+void uao_thread_switch(struct task_struct *next)
{
if (IS_ENABLED(CONFIG_ARM64_UAO)) {
if (task_thread_info(next)->addr_limit == KERNEL_DS)
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index d3f151c..8507703 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -544,6 +544,7 @@
return;
}
bootcpu_valid = true;
+ early_map_cpu_to_node(0, acpi_numa_get_nid(0, hwid));
return;
}
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c
index ad73414..bb0cd78 100644
--- a/arch/arm64/kernel/suspend.c
+++ b/arch/arm64/kernel/suspend.c
@@ -1,8 +1,11 @@
#include <linux/ftrace.h>
#include <linux/percpu.h>
#include <linux/slab.h>
+#include <asm/alternative.h>
#include <asm/cacheflush.h>
+#include <asm/cpufeature.h>
#include <asm/debug-monitors.h>
+#include <asm/exec.h>
#include <asm/pgtable.h>
#include <asm/memory.h>
#include <asm/mmu_context.h>
@@ -50,6 +53,14 @@
set_my_cpu_offset(per_cpu_offset(cpu));
/*
+ * PSTATE was not saved over suspend/resume, re-enable any detected
+ * features that might not have been set correctly.
+ */
+ asm(ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN,
+ CONFIG_ARM64_PAN));
+ uao_thread_switch(current);
+
+ /*
* Restore HW breakpoint registers to sane values
* before debug exceptions are possibly reenabled
* through local_dbg_restore.
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 5ff020f..c9986b3 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -428,24 +428,28 @@
force_signal_inject(SIGILL, ILL_ILLOPC, regs, 0);
}
-void cpu_enable_cache_maint_trap(void *__unused)
+int cpu_enable_cache_maint_trap(void *__unused)
{
config_sctlr_el1(SCTLR_EL1_UCI, 0);
+ return 0;
}
#define __user_cache_maint(insn, address, res) \
- asm volatile ( \
- "1: " insn ", %1\n" \
- " mov %w0, #0\n" \
- "2:\n" \
- " .pushsection .fixup,\"ax\"\n" \
- " .align 2\n" \
- "3: mov %w0, %w2\n" \
- " b 2b\n" \
- " .popsection\n" \
- _ASM_EXTABLE(1b, 3b) \
- : "=r" (res) \
- : "r" (address), "i" (-EFAULT) )
+ if (untagged_addr(address) >= user_addr_max()) \
+ res = -EFAULT; \
+ else \
+ asm volatile ( \
+ "1: " insn ", %1\n" \
+ " mov %w0, #0\n" \
+ "2:\n" \
+ " .pushsection .fixup,\"ax\"\n" \
+ " .align 2\n" \
+ "3: mov %w0, %w2\n" \
+ " b 2b\n" \
+ " .popsection\n" \
+ _ASM_EXTABLE(1b, 3b) \
+ : "=r" (res) \
+ : "r" (address), "i" (-EFAULT) )
static void user_cache_maint_handler(unsigned int esr, struct pt_regs *regs)
{
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 53d9159..0f87883 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -29,7 +29,9 @@
#include <linux/sched.h>
#include <linux/highmem.h>
#include <linux/perf_event.h>
+#include <linux/preempt.h>
+#include <asm/bug.h>
#include <asm/cpufeature.h>
#include <asm/exception.h>
#include <asm/debug-monitors.h>
@@ -670,9 +672,17 @@
NOKPROBE_SYMBOL(do_debug_exception);
#ifdef CONFIG_ARM64_PAN
-void cpu_enable_pan(void *__unused)
+int cpu_enable_pan(void *__unused)
{
+ /*
+ * We modify PSTATE. This won't work from irq context as the PSTATE
+ * is discarded once we return from the exception.
+ */
+ WARN_ON_ONCE(in_interrupt());
+
config_sctlr_el1(SCTLR_EL1_SPAN, 0);
+ asm(SET_PSTATE_PAN(1));
+ return 0;
}
#endif /* CONFIG_ARM64_PAN */
@@ -683,8 +693,9 @@
* We need to enable the feature at runtime (instead of adding it to
* PSR_MODE_EL1h) as the feature may not be implemented by the cpu.
*/
-void cpu_enable_uao(void *__unused)
+int cpu_enable_uao(void *__unused)
{
asm(SET_PSTATE_UAO(1));
+ return 0;
}
#endif /* CONFIG_ARM64_UAO */
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 21c489b..212c4d1 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -421,35 +421,35 @@
pr_notice("Virtual kernel memory layout:\n");
#ifdef CONFIG_KASAN
- pr_cont(" kasan : 0x%16lx - 0x%16lx (%6ld GB)\n",
+ pr_notice(" kasan : 0x%16lx - 0x%16lx (%6ld GB)\n",
MLG(KASAN_SHADOW_START, KASAN_SHADOW_END));
#endif
- pr_cont(" modules : 0x%16lx - 0x%16lx (%6ld MB)\n",
+ pr_notice(" modules : 0x%16lx - 0x%16lx (%6ld MB)\n",
MLM(MODULES_VADDR, MODULES_END));
- pr_cont(" vmalloc : 0x%16lx - 0x%16lx (%6ld GB)\n",
+ pr_notice(" vmalloc : 0x%16lx - 0x%16lx (%6ld GB)\n",
MLG(VMALLOC_START, VMALLOC_END));
- pr_cont(" .text : 0x%p" " - 0x%p" " (%6ld KB)\n",
+ pr_notice(" .text : 0x%p" " - 0x%p" " (%6ld KB)\n",
MLK_ROUNDUP(_text, _etext));
- pr_cont(" .rodata : 0x%p" " - 0x%p" " (%6ld KB)\n",
+ pr_notice(" .rodata : 0x%p" " - 0x%p" " (%6ld KB)\n",
MLK_ROUNDUP(__start_rodata, __init_begin));
- pr_cont(" .init : 0x%p" " - 0x%p" " (%6ld KB)\n",
+ pr_notice(" .init : 0x%p" " - 0x%p" " (%6ld KB)\n",
MLK_ROUNDUP(__init_begin, __init_end));
- pr_cont(" .data : 0x%p" " - 0x%p" " (%6ld KB)\n",
+ pr_notice(" .data : 0x%p" " - 0x%p" " (%6ld KB)\n",
MLK_ROUNDUP(_sdata, _edata));
- pr_cont(" .bss : 0x%p" " - 0x%p" " (%6ld KB)\n",
+ pr_notice(" .bss : 0x%p" " - 0x%p" " (%6ld KB)\n",
MLK_ROUNDUP(__bss_start, __bss_stop));
- pr_cont(" fixed : 0x%16lx - 0x%16lx (%6ld KB)\n",
+ pr_notice(" fixed : 0x%16lx - 0x%16lx (%6ld KB)\n",
MLK(FIXADDR_START, FIXADDR_TOP));
- pr_cont(" PCI I/O : 0x%16lx - 0x%16lx (%6ld MB)\n",
+ pr_notice(" PCI I/O : 0x%16lx - 0x%16lx (%6ld MB)\n",
MLM(PCI_IO_START, PCI_IO_END));
#ifdef CONFIG_SPARSEMEM_VMEMMAP
- pr_cont(" vmemmap : 0x%16lx - 0x%16lx (%6ld GB maximum)\n",
+ pr_notice(" vmemmap : 0x%16lx - 0x%16lx (%6ld GB maximum)\n",
MLG(VMEMMAP_START, VMEMMAP_START + VMEMMAP_SIZE));
- pr_cont(" 0x%16lx - 0x%16lx (%6ld MB actual)\n",
+ pr_notice(" 0x%16lx - 0x%16lx (%6ld MB actual)\n",
MLM((unsigned long)phys_to_page(memblock_start_of_DRAM()),
(unsigned long)virt_to_page(high_memory)));
#endif
- pr_cont(" memory : 0x%16lx - 0x%16lx (%6ld MB)\n",
+ pr_notice(" memory : 0x%16lx - 0x%16lx (%6ld MB)\n",
MLM(__phys_to_virt(memblock_start_of_DRAM()),
(unsigned long)high_memory));
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index 8b8fe67..8d79286 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -271,7 +271,7 @@
case BFIN_MEM_ACCESS_CORE:
case BFIN_MEM_ACCESS_CORE_ONLY:
copied = access_process_vm(child, addr, &tmp,
- to_copy, 0);
+ to_copy, FOLL_FORCE);
if (copied)
break;
@@ -324,7 +324,8 @@
case BFIN_MEM_ACCESS_CORE:
case BFIN_MEM_ACCESS_CORE_ONLY:
copied = access_process_vm(child, addr, &data,
- to_copy, 1);
+ to_copy,
+ FOLL_FORCE | FOLL_WRITE);
break;
case BFIN_MEM_ACCESS_DMA:
if (safe_dma_memcpy(paddr, &data, to_copy))
diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c
index b5698c8..099e170 100644
--- a/arch/cris/arch-v32/drivers/cryptocop.c
+++ b/arch/cris/arch-v32/drivers/cryptocop.c
@@ -2722,7 +2722,6 @@
err = get_user_pages((unsigned long int)(oper.indata + prev_ix),
noinpages,
0, /* read access only for in data */
- 0, /* no force */
inpages,
NULL);
@@ -2736,8 +2735,7 @@
if (oper.do_cipher){
err = get_user_pages((unsigned long int)oper.cipher_outdata,
nooutpages,
- 1, /* write access for out data */
- 0, /* no force */
+ FOLL_WRITE, /* write access for out data */
outpages,
NULL);
up_read(¤t->mm->mmap_sem);
diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c
index f085229..f0df654 100644
--- a/arch/cris/arch-v32/kernel/ptrace.c
+++ b/arch/cris/arch-v32/kernel/ptrace.c
@@ -147,7 +147,7 @@
/* The trampoline page is globally mapped, no page table to traverse.*/
tmp = *(unsigned long*)addr;
} else {
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
+ copied = access_process_vm(child, addr, &tmp, sizeof(tmp), FOLL_FORCE);
if (copied != sizeof(tmp))
break;
@@ -279,7 +279,7 @@
int opsize = 0;
/* Read the opcode at pc (do what PTRACE_PEEKTEXT would do). */
- copied = access_process_vm(child, pc, &opcode, sizeof(opcode), 0);
+ copied = access_process_vm(child, pc, &opcode, sizeof(opcode), FOLL_FORCE);
if (copied != sizeof(opcode))
return 0;
diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c
index 09f8457..5ed0ea9 100644
--- a/arch/ia64/kernel/err_inject.c
+++ b/arch/ia64/kernel/err_inject.c
@@ -142,7 +142,7 @@
u64 virt_addr=simple_strtoull(buf, NULL, 16);
int ret;
- ret = get_user_pages(virt_addr, 1, VM_READ, 0, NULL, NULL);
+ ret = get_user_pages(virt_addr, 1, FOLL_WRITE, NULL, NULL);
if (ret<=0) {
#ifdef ERR_INJ_DEBUG
printk("Virtual address %lx is not existing.\n",virt_addr);
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 6f54d51..31aa8c0 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -453,7 +453,7 @@
return 0;
}
}
- copied = access_process_vm(child, addr, &ret, sizeof(ret), 0);
+ copied = access_process_vm(child, addr, &ret, sizeof(ret), FOLL_FORCE);
if (copied != sizeof(ret))
return -EIO;
*val = ret;
@@ -489,7 +489,8 @@
*ia64_rse_skip_regs(krbs, regnum) = val;
}
}
- } else if (access_process_vm(child, addr, &val, sizeof(val), 1)
+ } else if (access_process_vm(child, addr, &val, sizeof(val),
+ FOLL_FORCE | FOLL_WRITE)
!= sizeof(val))
return -EIO;
return 0;
@@ -543,7 +544,8 @@
ret = ia64_peek(child, sw, user_rbs_end, addr, &val);
if (ret < 0)
return ret;
- if (access_process_vm(child, addr, &val, sizeof(val), 1)
+ if (access_process_vm(child, addr, &val, sizeof(val),
+ FOLL_FORCE | FOLL_WRITE)
!= sizeof(val))
return -EIO;
}
@@ -559,7 +561,8 @@
/* now copy word for word from user rbs to kernel rbs: */
for (addr = user_rbs_start; addr < user_rbs_end; addr += 8) {
- if (access_process_vm(child, addr, &val, sizeof(val), 0)
+ if (access_process_vm(child, addr, &val, sizeof(val),
+ FOLL_FORCE)
!= sizeof(val))
return -EIO;
@@ -1156,7 +1159,8 @@
case PTRACE_PEEKTEXT:
case PTRACE_PEEKDATA:
/* read word at location addr */
- if (access_process_vm(child, addr, &data, sizeof(data), 0)
+ if (access_process_vm(child, addr, &data, sizeof(data),
+ FOLL_FORCE)
!= sizeof(data))
return -EIO;
/* ensure return value is not mistaken for error code */
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 51f5e9a..c145605 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -493,7 +493,8 @@
int i;
for (i = 0; i < p->nr_trap; i++)
- access_process_vm(child, p->addr[i], &p->insn[i], sizeof(p->insn[i]), 1);
+ access_process_vm(child, p->addr[i], &p->insn[i], sizeof(p->insn[i]),
+ FOLL_FORCE | FOLL_WRITE);
p->nr_trap = 0;
}
@@ -537,7 +538,8 @@
unsigned long next_insn, code;
unsigned long addr = next_pc & ~3;
- if (access_process_vm(child, addr, &next_insn, sizeof(next_insn), 0)
+ if (access_process_vm(child, addr, &next_insn, sizeof(next_insn),
+ FOLL_FORCE)
!= sizeof(next_insn)) {
return -1; /* error */
}
@@ -546,7 +548,8 @@
if (register_debug_trap(child, next_pc, next_insn, &code)) {
return -1; /* error */
}
- if (access_process_vm(child, addr, &code, sizeof(code), 1)
+ if (access_process_vm(child, addr, &code, sizeof(code),
+ FOLL_FORCE | FOLL_WRITE)
!= sizeof(code)) {
return -1; /* error */
}
@@ -562,7 +565,8 @@
addr = (regs->bpc - 2) & ~3;
regs->bpc -= 2;
if (unregister_debug_trap(current, addr, &code)) {
- access_process_vm(current, addr, &code, sizeof(code), 1);
+ access_process_vm(current, addr, &code, sizeof(code),
+ FOLL_FORCE | FOLL_WRITE);
invalidate_cache();
}
}
@@ -589,7 +593,8 @@
/* Compute next pc. */
pc = get_stack_long(child, PT_BPC);
- if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
+ if (access_process_vm(child, pc&~3, &insn, sizeof(insn),
+ FOLL_FORCE)
!= sizeof(insn))
return;
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index 283b5a1..7e71a4e 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -70,7 +70,7 @@
break;
copied = access_process_vm(child, (u64)addrOthers, &tmp,
- sizeof(tmp), 0);
+ sizeof(tmp), FOLL_FORCE);
if (copied != sizeof(tmp))
break;
ret = put_user(tmp, (u32 __user *) (unsigned long) data);
@@ -179,7 +179,8 @@
break;
ret = 0;
if (access_process_vm(child, (u64)addrOthers, &data,
- sizeof(data), 1) == sizeof(data))
+ sizeof(data),
+ FOLL_FORCE | FOLL_WRITE) == sizeof(data))
break;
ret = -EIO;
break;
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index ce96149..622037d 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -14,6 +14,7 @@
#include <linux/err.h>
#include <linux/kdebug.h>
#include <linux/module.h>
+#include <linux/uaccess.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/bootmem.h>
diff --git a/arch/mips/mm/gup.c b/arch/mips/mm/gup.c
index 42d124f..d8c3c15 100644
--- a/arch/mips/mm/gup.c
+++ b/arch/mips/mm/gup.c
@@ -287,7 +287,7 @@
pages += nr;
ret = get_user_pages_unlocked(start, (end - start) >> PAGE_SHIFT,
- write, 0, pages);
+ pages, write ? FOLL_WRITE : 0);
/* Have to be a bit careful with return values */
if (nr > 0) {
diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c
index f7a184b..57d42d1 100644
--- a/arch/powerpc/boot/main.c
+++ b/arch/powerpc/boot/main.c
@@ -32,9 +32,16 @@
void *addr = 0;
struct elf_info ei;
long len;
+ int uncompressed_image = 0;
- partial_decompress(vmlinuz_addr, vmlinuz_size,
+ len = partial_decompress(vmlinuz_addr, vmlinuz_size,
elfheader, sizeof(elfheader), 0);
+ /* assume uncompressed data if -1 is returned */
+ if (len == -1) {
+ uncompressed_image = 1;
+ memcpy(elfheader, vmlinuz_addr, sizeof(elfheader));
+ printf("No valid compressed data found, assume uncompressed data\n\r");
+ }
if (!parse_elf64(elfheader, &ei) && !parse_elf32(elfheader, &ei))
fatal("Error: not a valid PPC32 or PPC64 ELF file!\n\r");
@@ -67,6 +74,13 @@
"device tree\n\r");
}
+ if (uncompressed_image) {
+ memcpy(addr, vmlinuz_addr + ei.elfoffset, ei.loadsize);
+ printf("0x%lx bytes of uncompressed data copied\n\r",
+ ei.loadsize);
+ goto out;
+ }
+
/* Finally, decompress the kernel */
printf("Decompressing (0x%p <- 0x%p:0x%p)...\n\r", addr,
vmlinuz_addr, vmlinuz_addr+vmlinuz_size);
@@ -82,7 +96,7 @@
len, ei.loadsize);
printf("Done! Decompressed 0x%lx bytes\n\r", len);
-
+out:
flush_cache(addr, ei.loadsize);
return (struct addr_range){addr, ei.memsize};
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index cf12c58..e8cdfec 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -16,6 +16,10 @@
#define __NR__exit __NR_exit
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
+
#ifndef __ASSEMBLY__
#include <linux/types.h>
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index f52b7db3..010b7b3 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -74,7 +74,7 @@
break;
copied = access_process_vm(child, (u64)addrOthers, &tmp,
- sizeof(tmp), 0);
+ sizeof(tmp), FOLL_FORCE);
if (copied != sizeof(tmp))
break;
ret = put_user(tmp, (u32 __user *)data);
@@ -179,7 +179,8 @@
break;
ret = 0;
if (access_process_vm(child, (u64)addrOthers, &tmp,
- sizeof(tmp), 1) == sizeof(tmp))
+ sizeof(tmp),
+ FOLL_FORCE | FOLL_WRITE) == sizeof(tmp))
break;
ret = -EIO;
break;
diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c
index bb03542..362954f 100644
--- a/arch/powerpc/mm/copro_fault.c
+++ b/arch/powerpc/mm/copro_fault.c
@@ -106,6 +106,8 @@
switch (REGION_ID(ea)) {
case USER_REGION_ID:
pr_devel("%s: 0x%llx -- USER_REGION_ID\n", __func__, ea);
+ if (mm == NULL)
+ return 1;
psize = get_slice_psize(mm, ea);
ssize = user_segment_size(ea);
vsid = get_vsid(mm->context.id, ea, ssize);
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 75b9cd6..a51c188 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -845,7 +845,7 @@
return;
for_each_online_node(node) {
- printk(KERN_DEBUG "Node %d CPUs:", node);
+ pr_info("Node %d CPUs:", node);
count = 0;
/*
@@ -856,52 +856,18 @@
if (cpumask_test_cpu(cpu,
node_to_cpumask_map[node])) {
if (count == 0)
- printk(" %u", cpu);
+ pr_cont(" %u", cpu);
++count;
} else {
if (count > 1)
- printk("-%u", cpu - 1);
+ pr_cont("-%u", cpu - 1);
count = 0;
}
}
if (count > 1)
- printk("-%u", nr_cpu_ids - 1);
- printk("\n");
- }
-}
-
-static void __init dump_numa_memory_topology(void)
-{
- unsigned int node;
- unsigned int count;
-
- if (min_common_depth == -1 || !numa_enabled)
- return;
-
- for_each_online_node(node) {
- unsigned long i;
-
- printk(KERN_DEBUG "Node %d Memory:", node);
-
- count = 0;
-
- for (i = 0; i < memblock_end_of_DRAM();
- i += (1 << SECTION_SIZE_BITS)) {
- if (early_pfn_to_nid(i >> PAGE_SHIFT) == node) {
- if (count == 0)
- printk(" 0x%lx", i);
- ++count;
- } else {
- if (count > 0)
- printk("-0x%lx", i);
- count = 0;
- }
- }
-
- if (count > 0)
- printk("-0x%lx", i);
- printk("\n");
+ pr_cont("-%u", nr_cpu_ids - 1);
+ pr_cont("\n");
}
}
@@ -947,8 +913,6 @@
if (parse_numa_properties())
setup_nonnuma();
- else
- dump_numa_memory_topology();
memblock_dump_all();
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 1cab8a1..7a27eeb 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -119,8 +119,13 @@
vcpu->stat.exit_validity++;
trace_kvm_s390_intercept_validity(vcpu, viwhy);
- WARN_ONCE(true, "kvm: unhandled validity intercept 0x%x\n", viwhy);
- return -EOPNOTSUPP;
+ KVM_EVENT(3, "validity intercept 0x%x for pid %u (kvm 0x%pK)", viwhy,
+ current->pid, vcpu->kvm);
+
+ /* do not warn on invalid runtime instrumentation mode */
+ WARN_ONCE(viwhy != 0x44, "kvm: unhandled validity intercept 0x%x\n",
+ viwhy);
+ return -EINVAL;
}
static int handle_instruction(struct kvm_vcpu *vcpu)
diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index adb0c34..18d4107 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -266,7 +266,8 @@
/* Try to get the remaining pages with get_user_pages */
start += nr << PAGE_SHIFT;
pages += nr;
- ret = get_user_pages_unlocked(start, nr_pages - nr, write, 0, pages);
+ ret = get_user_pages_unlocked(start, nr_pages - nr, pages,
+ write ? FOLL_WRITE : 0);
/* Have to be a bit careful with return values */
if (nr > 0)
ret = (ret < 0) ? nr : ret + nr;
diff --git a/arch/score/kernel/ptrace.c b/arch/score/kernel/ptrace.c
index 5583618..4f7314d 100644
--- a/arch/score/kernel/ptrace.c
+++ b/arch/score/kernel/ptrace.c
@@ -131,7 +131,7 @@
{
int copied;
- copied = access_process_vm(child, addr, res, sizeof(*res), 0);
+ copied = access_process_vm(child, addr, res, sizeof(*res), FOLL_FORCE);
return copied != sizeof(*res) ? -EIO : 0;
}
@@ -142,7 +142,7 @@
{
int copied;
- copied = access_process_vm(child, addr, res, sizeof(*res), 0);
+ copied = access_process_vm(child, addr, res, sizeof(*res), FOLL_FORCE);
return copied != sizeof(*res) ? -EIO : 0;
}
@@ -153,7 +153,8 @@
{
int copied;
- copied = access_process_vm(child, addr, &val, sizeof(val), 1);
+ copied = access_process_vm(child, addr, &val, sizeof(val),
+ FOLL_FORCE | FOLL_WRITE);
return copied != sizeof(val) ? -EIO : 0;
}
@@ -164,7 +165,8 @@
{
int copied;
- copied = access_process_vm(child, addr, &val, sizeof(val), 1);
+ copied = access_process_vm(child, addr, &val, sizeof(val),
+ FOLL_FORCE | FOLL_WRITE);
return copied != sizeof(val) ? -EIO : 0;
}
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 0047666..336f33a 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -31,7 +31,7 @@
endif
cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,)
-cflags-$(CONFIG_CPU_J2) := $(call cc-option,-mj2,)
+cflags-$(CONFIG_CPU_J2) += $(call cc-option,-mj2,)
cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \
$(call cc-option,-m2a-nofpu,) \
$(call cc-option,-m4-nofpu,)
diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig
index e9c2c42..4e21949 100644
--- a/arch/sh/boards/Kconfig
+++ b/arch/sh/boards/Kconfig
@@ -22,6 +22,16 @@
have sufficient driver coverage to use this option; do not
select it if you are using original SuperH hardware.
+config SH_JCORE_SOC
+ bool "J-Core SoC"
+ depends on SH_DEVICE_TREE && (CPU_SH2 || CPU_J2)
+ select CLKSRC_JCORE_PIT
+ select JCORE_AIC
+ default y if CPU_J2
+ help
+ Select this option to include drivers core components of the
+ J-Core SoC, including interrupt controllers and timers.
+
config SH_SOLUTION_ENGINE
bool "SolutionEngine"
select SOLUTION_ENGINE
diff --git a/arch/sh/configs/j2_defconfig b/arch/sh/configs/j2_defconfig
index 94d1eca..2eb81ebe 100644
--- a/arch/sh/configs/j2_defconfig
+++ b/arch/sh/configs/j2_defconfig
@@ -8,6 +8,7 @@
CONFIG_MEMORY_SIZE=0x04000000
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_SH_DEVICE_TREE=y
+CONFIG_SH_JCORE_SOC=y
CONFIG_HZ_100=y
CONFIG_CMDLINE_OVERWRITE=y
CONFIG_CMDLINE="console=ttyUL0 earlycon"
@@ -20,6 +21,7 @@
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_NETDEVICES=y
+CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
CONFIG_I2C=y
diff --git a/arch/sh/mm/gup.c b/arch/sh/mm/gup.c
index 40fa6c8..063c298 100644
--- a/arch/sh/mm/gup.c
+++ b/arch/sh/mm/gup.c
@@ -258,7 +258,8 @@
pages += nr;
ret = get_user_pages_unlocked(start,
- (end - start) >> PAGE_SHIFT, write, 0, pages);
+ (end - start) >> PAGE_SHIFT, pages,
+ write ? FOLL_WRITE : 0);
/* Have to be a bit careful with return values */
if (nr > 0) {
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 9ddc492..ac082dd 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -127,7 +127,8 @@
if (copy_from_user(kbuf, (void __user *) uaddr, len))
return -EFAULT;
} else {
- int len2 = access_process_vm(target, uaddr, kbuf, len, 0);
+ int len2 = access_process_vm(target, uaddr, kbuf, len,
+ FOLL_FORCE);
if (len2 != len)
return -EFAULT;
}
@@ -141,7 +142,8 @@
if (copy_to_user((void __user *) uaddr, kbuf, len))
return -EFAULT;
} else {
- int len2 = access_process_vm(target, uaddr, kbuf, len, 1);
+ int len2 = access_process_vm(target, uaddr, kbuf, len,
+ FOLL_FORCE | FOLL_WRITE);
if (len2 != len)
return -EFAULT;
}
@@ -505,7 +507,8 @@
if (access_process_vm(target,
(unsigned long)
®_window[pos],
- k, sizeof(*k), 0)
+ k, sizeof(*k),
+ FOLL_FORCE)
!= sizeof(*k))
return -EFAULT;
k++;
@@ -531,12 +534,14 @@
if (access_process_vm(target,
(unsigned long)
®_window[pos],
- ®, sizeof(reg), 0)
+ ®, sizeof(reg),
+ FOLL_FORCE)
!= sizeof(reg))
return -EFAULT;
if (access_process_vm(target,
(unsigned long) u,
- ®, sizeof(reg), 1)
+ ®, sizeof(reg),
+ FOLL_FORCE | FOLL_WRITE)
!= sizeof(reg))
return -EFAULT;
pos++;
@@ -615,7 +620,8 @@
(unsigned long)
®_window[pos],
(void *) k,
- sizeof(*k), 1)
+ sizeof(*k),
+ FOLL_FORCE | FOLL_WRITE)
!= sizeof(*k))
return -EFAULT;
k++;
@@ -642,13 +648,15 @@
if (access_process_vm(target,
(unsigned long)
u,
- ®, sizeof(reg), 0)
+ ®, sizeof(reg),
+ FOLL_FORCE)
!= sizeof(reg))
return -EFAULT;
if (access_process_vm(target,
(unsigned long)
®_window[pos],
- ®, sizeof(reg), 1)
+ ®, sizeof(reg),
+ FOLL_FORCE | FOLL_WRITE)
!= sizeof(reg))
return -EFAULT;
pos++;
diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c
index 4e06750..cd0e32b 100644
--- a/arch/sparc/mm/gup.c
+++ b/arch/sparc/mm/gup.c
@@ -238,7 +238,8 @@
pages += nr;
ret = get_user_pages_unlocked(start,
- (end - start) >> PAGE_SHIFT, write, 0, pages);
+ (end - start) >> PAGE_SHIFT, pages,
+ write ? FOLL_WRITE : 0);
/* Have to be a bit careful with return values */
if (nr > 0) {
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index c9a0738..a23ce84 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -57,7 +57,8 @@
unsigned char opcode[15];
unsigned long addr = convert_ip_to_linear(child, regs);
- copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
+ copied = access_process_vm(child, addr, opcode, sizeof(opcode),
+ FOLL_FORCE);
for (i = 0; i < copied; i++) {
switch (opcode[i]) {
/* popf and iret */
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index c7220ba..1a22de7 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -594,7 +594,7 @@
ioapic->irr = 0;
ioapic->irr_delivered = 0;
ioapic->id = 0;
- memset(ioapic->irq_eoi, 0x00, IOAPIC_NUM_PINS);
+ memset(ioapic->irq_eoi, 0x00, sizeof(ioapic->irq_eoi));
rtc_irq_eoi_tracking_reset(ioapic);
}
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6c633de..e375235 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5733,13 +5733,13 @@
static void kvm_timer_init(void)
{
- int cpu;
-
max_tsc_khz = tsc_khz;
if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) {
#ifdef CONFIG_CPU_FREQ
struct cpufreq_policy policy;
+ int cpu;
+
memset(&policy, 0, sizeof(policy));
cpu = get_cpu();
cpufreq_get_policy(&policy, cpu);
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index b8b6a60..0d4fb3e 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -435,7 +435,7 @@
ret = get_user_pages_unlocked(start,
(end - start) >> PAGE_SHIFT,
- write, 0, pages);
+ pages, write ? FOLL_WRITE : 0);
/* Have to be a bit careful with return values */
if (nr > 0) {
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 8047687..e4f8009 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -544,10 +544,9 @@
{
long gup_ret;
int nr_pages = 1;
- int force = 0;
- gup_ret = get_user_pages((unsigned long)addr, nr_pages, write,
- force, NULL, NULL);
+ gup_ret = get_user_pages((unsigned long)addr, nr_pages,
+ write ? FOLL_WRITE : 0, NULL, NULL);
/*
* get_user_pages() returns number of pages gotten.
* 0 means we failed to fault in and get anything,
diff --git a/arch/x86/um/ptrace_32.c b/arch/x86/um/ptrace_32.c
index 5766ead..60a5a5a 100644
--- a/arch/x86/um/ptrace_32.c
+++ b/arch/x86/um/ptrace_32.c
@@ -36,7 +36,8 @@
* slow, but that doesn't matter, since it will be called only
* in case of singlestepping, if copy_from_user failed.
*/
- n = access_process_vm(current, addr, &instr, sizeof(instr), 0);
+ n = access_process_vm(current, addr, &instr, sizeof(instr),
+ FOLL_FORCE);
if (n != sizeof(instr)) {
printk(KERN_ERR "is_syscall : failed to read "
"instruction from 0x%lx\n", addr);
diff --git a/arch/x86/um/ptrace_64.c b/arch/x86/um/ptrace_64.c
index 0b5c184..e30202b 100644
--- a/arch/x86/um/ptrace_64.c
+++ b/arch/x86/um/ptrace_64.c
@@ -212,7 +212,8 @@
* slow, but that doesn't matter, since it will be called only
* in case of singlestepping, if copy_from_user failed.
*/
- n = access_process_vm(current, addr, &instr, sizeof(instr), 0);
+ n = access_process_vm(current, addr, &instr, sizeof(instr),
+ FOLL_FORCE);
if (n != sizeof(instr)) {
printk("is_syscall : failed to read instruction from "
"0x%lx\n", addr);
diff --git a/block/badblocks.c b/block/badblocks.c
index 7be53cb..6610e28 100644
--- a/block/badblocks.c
+++ b/block/badblocks.c
@@ -354,7 +354,8 @@
* current range. Earlier ranges could also overlap,
* but only this one can overlap the end of the range.
*/
- if (BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > target) {
+ if ((BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > target) &&
+ (BB_OFFSET(p[lo]) < target)) {
/* Partial overlap, leave the tail of this range */
int ack = BB_ACK(p[lo]);
sector_t a = BB_OFFSET(p[lo]);
@@ -377,7 +378,8 @@
lo--;
}
while (lo >= 0 &&
- BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > s) {
+ (BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > s) &&
+ (BB_OFFSET(p[lo]) < target)) {
/* This range does overlap */
if (BB_OFFSET(p[lo]) < s) {
/* Keep the early parts of this range. */
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index abb7162..7b274ff 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -415,15 +415,15 @@
};
/*
- * Flag bits for rbd_dev->flags. If atomicity is required,
- * rbd_dev->lock is used to protect access.
- *
- * Currently, only the "removing" flag (which is coupled with the
- * "open_count" field) requires atomic access.
+ * Flag bits for rbd_dev->flags:
+ * - REMOVING (which is coupled with rbd_dev->open_count) is protected
+ * by rbd_dev->lock
+ * - BLACKLISTED is protected by rbd_dev->lock_rwsem
*/
enum rbd_dev_flags {
RBD_DEV_FLAG_EXISTS, /* mapped snapshot has not been deleted */
RBD_DEV_FLAG_REMOVING, /* this mapping is being removed */
+ RBD_DEV_FLAG_BLACKLISTED, /* our ceph_client is blacklisted */
};
static DEFINE_MUTEX(client_mutex); /* Serialize client creation */
@@ -3926,6 +3926,7 @@
struct rbd_device *rbd_dev = container_of(to_delayed_work(work),
struct rbd_device, watch_dwork);
bool was_lock_owner = false;
+ bool need_to_wake = false;
int ret;
dout("%s rbd_dev %p\n", __func__, rbd_dev);
@@ -3935,19 +3936,27 @@
was_lock_owner = rbd_release_lock(rbd_dev);
mutex_lock(&rbd_dev->watch_mutex);
- if (rbd_dev->watch_state != RBD_WATCH_STATE_ERROR)
- goto fail_unlock;
+ if (rbd_dev->watch_state != RBD_WATCH_STATE_ERROR) {
+ mutex_unlock(&rbd_dev->watch_mutex);
+ goto out;
+ }
ret = __rbd_register_watch(rbd_dev);
if (ret) {
rbd_warn(rbd_dev, "failed to reregister watch: %d", ret);
- if (ret != -EBLACKLISTED)
+ if (ret == -EBLACKLISTED || ret == -ENOENT) {
+ set_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags);
+ need_to_wake = true;
+ } else {
queue_delayed_work(rbd_dev->task_wq,
&rbd_dev->watch_dwork,
RBD_RETRY_DELAY);
- goto fail_unlock;
+ }
+ mutex_unlock(&rbd_dev->watch_mutex);
+ goto out;
}
+ need_to_wake = true;
rbd_dev->watch_state = RBD_WATCH_STATE_REGISTERED;
rbd_dev->watch_cookie = rbd_dev->watch_handle->linger_id;
mutex_unlock(&rbd_dev->watch_mutex);
@@ -3963,13 +3972,10 @@
ret);
}
+out:
up_write(&rbd_dev->lock_rwsem);
- wake_requests(rbd_dev, true);
- return;
-
-fail_unlock:
- mutex_unlock(&rbd_dev->watch_mutex);
- up_write(&rbd_dev->lock_rwsem);
+ if (need_to_wake)
+ wake_requests(rbd_dev, true);
}
/*
@@ -4074,7 +4080,9 @@
up_read(&rbd_dev->lock_rwsem);
schedule();
down_read(&rbd_dev->lock_rwsem);
- } while (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED);
+ } while (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED &&
+ !test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags));
+
finish_wait(&rbd_dev->lock_waitq, &wait);
}
@@ -4166,8 +4174,16 @@
if (must_be_locked) {
down_read(&rbd_dev->lock_rwsem);
- if (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED)
+ if (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED &&
+ !test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags))
rbd_wait_state_locked(rbd_dev);
+
+ WARN_ON((rbd_dev->lock_state == RBD_LOCK_STATE_LOCKED) ^
+ !test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags));
+ if (test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags)) {
+ result = -EBLACKLISTED;
+ goto err_unlock;
+ }
}
img_request = rbd_img_request_create(rbd_dev, offset, length, op_type,
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index c069451..5e23e2d 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -11,7 +11,7 @@
-mno-mmx -mno-sse
cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS))
-cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \
+cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) -g0 \
-fno-builtin -fpic -mno-single-pic-base
cflags-$(CONFIG_EFI_ARMSTUB) += -I$(srctree)/scripts/dtc/libfdt
@@ -79,5 +79,6 @@
# decompressor. So move our .data to .data.efistub, which is preserved
# explicitly by the decompressor linker script.
#
-STUBCOPY_FLAGS-$(CONFIG_ARM) += --rename-section .data=.data.efistub
+STUBCOPY_FLAGS-$(CONFIG_ARM) += --rename-section .data=.data.efistub \
+ -R ___ksymtab+sort -R ___kcrctab+sort
STUBCOPY_RELOC-$(CONFIG_ARM) := R_ARM_ABS
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 887483b..dcaf691 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -555,10 +555,13 @@
int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages)
{
struct amdgpu_ttm_tt *gtt = (void *)ttm;
- int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY);
+ unsigned int flags = 0;
unsigned pinned = 0;
int r;
+ if (!(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY))
+ flags |= FOLL_WRITE;
+
if (gtt->userflags & AMDGPU_GEM_USERPTR_ANONONLY) {
/* check that we only use anonymous memory
to prevent problems with writeback */
@@ -581,7 +584,7 @@
list_add(&guptask.list, >t->guptasks);
spin_unlock(>t->guptasklock);
- r = get_user_pages(userptr, num_pages, write, 0, p, NULL);
+ r = get_user_pages(userptr, num_pages, flags, p, NULL);
spin_lock(>t->guptasklock);
list_del(&guptask.list);
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index 2f58e9e..a51f8cb 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -332,17 +332,19 @@
{
struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
- if (dcrtc->dpms != dpms) {
- dcrtc->dpms = dpms;
- if (!IS_ERR(dcrtc->clk) && !dpms_blanked(dpms))
- WARN_ON(clk_prepare_enable(dcrtc->clk));
- armada_drm_crtc_update(dcrtc);
- if (!IS_ERR(dcrtc->clk) && dpms_blanked(dpms))
- clk_disable_unprepare(dcrtc->clk);
+ if (dpms_blanked(dcrtc->dpms) != dpms_blanked(dpms)) {
if (dpms_blanked(dpms))
armada_drm_vblank_off(dcrtc);
- else
+ else if (!IS_ERR(dcrtc->clk))
+ WARN_ON(clk_prepare_enable(dcrtc->clk));
+ dcrtc->dpms = dpms;
+ armada_drm_crtc_update(dcrtc);
+ if (!dpms_blanked(dpms))
drm_crtc_vblank_on(&dcrtc->crtc);
+ else if (!IS_ERR(dcrtc->clk))
+ clk_disable_unprepare(dcrtc->clk);
+ } else if (dcrtc->dpms != dpms) {
+ dcrtc->dpms = dpms;
}
}
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
index cb86c7e..d923013 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
@@ -329,20 +329,34 @@
/*
* Append a LINK to the submitted command buffer to return to
* the ring buffer. return_target is the ring target address.
- * We need three dwords: event, wait, link.
+ * We need at most 7 dwords in the return target: 2 cache flush +
+ * 2 semaphore stall + 1 event + 1 wait + 1 link.
*/
- return_dwords = 3;
+ return_dwords = 7;
return_target = etnaviv_buffer_reserve(gpu, buffer, return_dwords);
CMD_LINK(cmdbuf, return_dwords, return_target);
/*
- * Append event, wait and link pointing back to the wait
- * command to the ring buffer.
+ * Append a cache flush, stall, event, wait and link pointing back to
+ * the wait command to the ring buffer.
*/
+ if (gpu->exec_state == ETNA_PIPE_2D) {
+ CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE,
+ VIVS_GL_FLUSH_CACHE_PE2D);
+ } else {
+ CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE,
+ VIVS_GL_FLUSH_CACHE_DEPTH |
+ VIVS_GL_FLUSH_CACHE_COLOR);
+ CMD_LOAD_STATE(buffer, VIVS_TS_FLUSH_CACHE,
+ VIVS_TS_FLUSH_CACHE_FLUSH);
+ }
+ CMD_SEM(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE);
+ CMD_STALL(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE);
CMD_LOAD_STATE(buffer, VIVS_GL_EVENT, VIVS_GL_EVENT_EVENT_ID(event) |
VIVS_GL_EVENT_FROM_PE);
CMD_WAIT(buffer);
- CMD_LINK(buffer, 2, return_target + 8);
+ CMD_LINK(buffer, 2, etnaviv_iommu_get_cmdbuf_va(gpu, buffer) +
+ buffer->user_size - 4);
if (drm_debug & DRM_UT_DRIVER)
pr_info("stream link to 0x%08x @ 0x%08x %p\n",
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index 5ce3603..0370b84 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -748,19 +748,22 @@
int ret = 0, pinned, npages = etnaviv_obj->base.size >> PAGE_SHIFT;
struct page **pvec;
uintptr_t ptr;
+ unsigned int flags = 0;
pvec = drm_malloc_ab(npages, sizeof(struct page *));
if (!pvec)
return ERR_PTR(-ENOMEM);
+ if (!etnaviv_obj->userptr.ro)
+ flags |= FOLL_WRITE;
+
pinned = 0;
ptr = etnaviv_obj->userptr.ptr;
down_read(&mm->mmap_sem);
while (pinned < npages) {
ret = get_user_pages_remote(task, mm, ptr, npages - pinned,
- !etnaviv_obj->userptr.ro, 0,
- pvec + pinned, NULL);
+ flags, pvec + pinned, NULL);
if (ret < 0)
break;
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
index d3796ed..169ac96 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
@@ -330,7 +330,8 @@
return (u32)buf->vram_node.start;
mutex_lock(&mmu->lock);
- ret = etnaviv_iommu_find_iova(mmu, &buf->vram_node, buf->size);
+ ret = etnaviv_iommu_find_iova(mmu, &buf->vram_node,
+ buf->size + SZ_64K);
if (ret < 0) {
mutex_unlock(&mmu->lock);
return 0;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index aa92dec..fbd13fa 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -488,7 +488,8 @@
goto err_free;
}
- ret = get_vaddr_frames(start, npages, true, true, g2d_userptr->vec);
+ ret = get_vaddr_frames(start, npages, FOLL_FORCE | FOLL_WRITE,
+ g2d_userptr->vec);
if (ret != npages) {
DRM_ERROR("failed to get user pages from userptr.\n");
if (ret < 0)
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c
index 3371635..b2d5e18 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c
@@ -51,6 +51,7 @@
DCU_MODE_DCU_MODE(DCU_MODE_OFF));
regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE,
DCU_UPDATE_MODE_READREG);
+ clk_disable_unprepare(fsl_dev->pix_clk);
}
static void fsl_dcu_drm_crtc_enable(struct drm_crtc *crtc)
@@ -58,6 +59,7 @@
struct drm_device *dev = crtc->dev;
struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+ clk_prepare_enable(fsl_dev->pix_clk);
regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE,
DCU_MODE_DCU_MODE_MASK,
DCU_MODE_DCU_MODE(DCU_MODE_NORMAL));
@@ -116,8 +118,6 @@
DCU_THRESHOLD_LS_BF_VS(BF_VS_VAL) |
DCU_THRESHOLD_OUT_BUF_HIGH(BUF_MAX_VAL) |
DCU_THRESHOLD_OUT_BUF_LOW(BUF_MIN_VAL));
- regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE,
- DCU_UPDATE_MODE_READREG);
return;
}
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
index 0884c45..e04efbe 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
@@ -267,12 +267,8 @@
return ret;
}
- ret = clk_prepare_enable(fsl_dev->pix_clk);
- if (ret < 0) {
- dev_err(dev, "failed to enable pix clk\n");
- goto disable_dcu_clk;
- }
-
+ if (fsl_dev->tcon)
+ fsl_tcon_bypass_enable(fsl_dev->tcon);
fsl_dcu_drm_init_planes(fsl_dev->drm);
drm_atomic_helper_resume(fsl_dev->drm, fsl_dev->state);
@@ -284,10 +280,6 @@
enable_irq(fsl_dev->irq);
return 0;
-
-disable_dcu_clk:
- clk_disable_unprepare(fsl_dev->clk);
- return ret;
}
#endif
@@ -401,18 +393,12 @@
goto disable_clk;
}
- ret = clk_prepare_enable(fsl_dev->pix_clk);
- if (ret < 0) {
- dev_err(dev, "failed to enable pix clk\n");
- goto unregister_pix_clk;
- }
-
fsl_dev->tcon = fsl_tcon_init(dev);
drm = drm_dev_alloc(driver, dev);
if (IS_ERR(drm)) {
ret = PTR_ERR(drm);
- goto disable_pix_clk;
+ goto unregister_pix_clk;
}
fsl_dev->dev = dev;
@@ -433,8 +419,6 @@
unref:
drm_dev_unref(drm);
-disable_pix_clk:
- clk_disable_unprepare(fsl_dev->pix_clk);
unregister_pix_clk:
clk_unregister(fsl_dev->pix_clk);
disable_clk:
@@ -447,7 +431,6 @@
struct fsl_dcu_drm_device *fsl_dev = platform_get_drvdata(pdev);
clk_disable_unprepare(fsl_dev->clk);
- clk_disable_unprepare(fsl_dev->pix_clk);
clk_unregister(fsl_dev->pix_clk);
drm_put_dev(fsl_dev->drm);
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
index a7e5486..9e6f7d8 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
@@ -211,11 +211,6 @@
for (j = 1; j <= fsl_dev->soc->layer_regs; j++)
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(i, j), 0);
}
- regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE,
- DCU_MODE_DCU_MODE_MASK,
- DCU_MODE_DCU_MODE(DCU_MODE_OFF));
- regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE,
- DCU_UPDATE_MODE_READREG);
}
struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device *dev)
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c
index 26edcc8..e1dd75b 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c
@@ -20,38 +20,6 @@
#include "fsl_dcu_drm_drv.h"
#include "fsl_tcon.h"
-static int
-fsl_dcu_drm_encoder_atomic_check(struct drm_encoder *encoder,
- struct drm_crtc_state *crtc_state,
- struct drm_connector_state *conn_state)
-{
- return 0;
-}
-
-static void fsl_dcu_drm_encoder_disable(struct drm_encoder *encoder)
-{
- struct drm_device *dev = encoder->dev;
- struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
-
- if (fsl_dev->tcon)
- fsl_tcon_bypass_disable(fsl_dev->tcon);
-}
-
-static void fsl_dcu_drm_encoder_enable(struct drm_encoder *encoder)
-{
- struct drm_device *dev = encoder->dev;
- struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
-
- if (fsl_dev->tcon)
- fsl_tcon_bypass_enable(fsl_dev->tcon);
-}
-
-static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
- .atomic_check = fsl_dcu_drm_encoder_atomic_check,
- .disable = fsl_dcu_drm_encoder_disable,
- .enable = fsl_dcu_drm_encoder_enable,
-};
-
static void fsl_dcu_drm_encoder_destroy(struct drm_encoder *encoder)
{
drm_encoder_cleanup(encoder);
@@ -68,13 +36,16 @@
int ret;
encoder->possible_crtcs = 1;
+
+ /* Use bypass mode for parallel RGB/LVDS encoder */
+ if (fsl_dev->tcon)
+ fsl_tcon_bypass_enable(fsl_dev->tcon);
+
ret = drm_encoder_init(fsl_dev->drm, encoder, &encoder_funcs,
DRM_MODE_ENCODER_LVDS, NULL);
if (ret < 0)
return ret;
- drm_encoder_helper_add(encoder, &encoder_helper_funcs);
-
return 0;
}
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index e537930..c6f780f 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -508,6 +508,10 @@
pvec = drm_malloc_gfp(npages, sizeof(struct page *), GFP_TEMPORARY);
if (pvec != NULL) {
struct mm_struct *mm = obj->userptr.mm->mm;
+ unsigned int flags = 0;
+
+ if (!obj->userptr.read_only)
+ flags |= FOLL_WRITE;
ret = -EFAULT;
if (atomic_inc_not_zero(&mm->mm_users)) {
@@ -517,7 +521,7 @@
(work->task, mm,
obj->userptr.ptr + pinned * PAGE_SIZE,
npages - pinned,
- !obj->userptr.read_only, 0,
+ flags,
pvec + pinned, NULL);
if (ret < 0)
break;
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 4552682..3de5e6e 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -566,7 +566,8 @@
uint64_t userptr = gtt->userptr + pinned * PAGE_SIZE;
struct page **pages = ttm->pages + pinned;
- r = get_user_pages(userptr, num_pages, write, 0, pages, NULL);
+ r = get_user_pages(userptr, num_pages, write ? FOLL_WRITE : 0,
+ pages, NULL);
if (r < 0)
goto release_pages;
diff --git a/drivers/gpu/drm/via/via_dmablit.c b/drivers/gpu/drm/via/via_dmablit.c
index 7e2a12c..1a3ad76 100644
--- a/drivers/gpu/drm/via/via_dmablit.c
+++ b/drivers/gpu/drm/via/via_dmablit.c
@@ -241,8 +241,8 @@
down_read(¤t->mm->mmap_sem);
ret = get_user_pages((unsigned long)xfer->mem_addr,
vsg->num_pages,
- (vsg->direction == DMA_FROM_DEVICE),
- 0, vsg->pages, NULL);
+ (vsg->direction == DMA_FROM_DEVICE) ? FOLL_WRITE : 0,
+ vsg->pages, NULL);
up_read(¤t->mm->mmap_sem);
if (ret != vsg->num_pages) {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index e8ae3dc..18061a4 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -241,15 +241,15 @@
void *ptr);
MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
-module_param_named(enable_fbdev, enable_fbdev, int, 0600);
+module_param_named(enable_fbdev, enable_fbdev, int, S_IRUSR | S_IWUSR);
MODULE_PARM_DESC(force_dma_api, "Force using the DMA API for TTM pages");
-module_param_named(force_dma_api, vmw_force_iommu, int, 0600);
+module_param_named(force_dma_api, vmw_force_iommu, int, S_IRUSR | S_IWUSR);
MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages");
-module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600);
+module_param_named(restrict_iommu, vmw_restrict_iommu, int, S_IRUSR | S_IWUSR);
MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages");
-module_param_named(force_coherent, vmw_force_coherent, int, 0600);
+module_param_named(force_coherent, vmw_force_coherent, int, S_IRUSR | S_IWUSR);
MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU");
-module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600);
+module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, S_IRUSR | S_IWUSR);
MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes");
module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 070d750..1e59a48 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -43,7 +43,7 @@
#define VMWGFX_DRIVER_DATE "20160210"
#define VMWGFX_DRIVER_MAJOR 2
-#define VMWGFX_DRIVER_MINOR 10
+#define VMWGFX_DRIVER_MINOR 11
#define VMWGFX_DRIVER_PATCHLEVEL 0
#define VMWGFX_FILE_PAGE_OFFSET 0x00100000
#define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index dc5beff..c7b53d9 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -35,17 +35,37 @@
#define VMW_RES_HT_ORDER 12
/**
+ * enum vmw_resource_relocation_type - Relocation type for resources
+ *
+ * @vmw_res_rel_normal: Traditional relocation. The resource id in the
+ * command stream is replaced with the actual id after validation.
+ * @vmw_res_rel_nop: NOP relocation. The command is unconditionally replaced
+ * with a NOP.
+ * @vmw_res_rel_cond_nop: Conditional NOP relocation. If the resource id
+ * after validation is -1, the command is replaced with a NOP. Otherwise no
+ * action.
+ */
+enum vmw_resource_relocation_type {
+ vmw_res_rel_normal,
+ vmw_res_rel_nop,
+ vmw_res_rel_cond_nop,
+ vmw_res_rel_max
+};
+
+/**
* struct vmw_resource_relocation - Relocation info for resources
*
* @head: List head for the software context's relocation list.
* @res: Non-ref-counted pointer to the resource.
- * @offset: Offset of 4 byte entries into the command buffer where the
+ * @offset: Offset of single byte entries into the command buffer where the
* id that needs fixup is located.
+ * @rel_type: Type of relocation.
*/
struct vmw_resource_relocation {
struct list_head head;
const struct vmw_resource *res;
- unsigned long offset;
+ u32 offset:29;
+ enum vmw_resource_relocation_type rel_type:3;
};
/**
@@ -109,7 +129,18 @@
struct vmw_dma_buffer *vbo,
bool validate_as_mob,
uint32_t *p_val_node);
-
+/**
+ * vmw_ptr_diff - Compute the offset from a to b in bytes
+ *
+ * @a: A starting pointer.
+ * @b: A pointer offset in the same address space.
+ *
+ * Returns: The offset in bytes between the two pointers.
+ */
+static size_t vmw_ptr_diff(void *a, void *b)
+{
+ return (unsigned long) b - (unsigned long) a;
+}
/**
* vmw_resources_unreserve - unreserve resources previously reserved for
@@ -409,11 +440,14 @@
* @list: Pointer to head of relocation list.
* @res: The resource.
* @offset: Offset into the command buffer currently being parsed where the
- * id that needs fixup is located. Granularity is 4 bytes.
+ * id that needs fixup is located. Granularity is one byte.
+ * @rel_type: Relocation type.
*/
static int vmw_resource_relocation_add(struct list_head *list,
const struct vmw_resource *res,
- unsigned long offset)
+ unsigned long offset,
+ enum vmw_resource_relocation_type
+ rel_type)
{
struct vmw_resource_relocation *rel;
@@ -425,6 +459,7 @@
rel->res = res;
rel->offset = offset;
+ rel->rel_type = rel_type;
list_add_tail(&rel->head, list);
return 0;
@@ -459,11 +494,24 @@
{
struct vmw_resource_relocation *rel;
+ /* Validate the struct vmw_resource_relocation member size */
+ BUILD_BUG_ON(SVGA_CB_MAX_SIZE >= (1 << 29));
+ BUILD_BUG_ON(vmw_res_rel_max >= (1 << 3));
+
list_for_each_entry(rel, list, head) {
- if (likely(rel->res != NULL))
- cb[rel->offset] = rel->res->id;
- else
- cb[rel->offset] = SVGA_3D_CMD_NOP;
+ u32 *addr = (u32 *)((unsigned long) cb + rel->offset);
+ switch (rel->rel_type) {
+ case vmw_res_rel_normal:
+ *addr = rel->res->id;
+ break;
+ case vmw_res_rel_nop:
+ *addr = SVGA_3D_CMD_NOP;
+ break;
+ default:
+ if (rel->res->id == -1)
+ *addr = SVGA_3D_CMD_NOP;
+ break;
+ }
}
}
@@ -655,7 +703,9 @@
*p_val = NULL;
ret = vmw_resource_relocation_add(&sw_context->res_relocations,
res,
- id_loc - sw_context->buf_start);
+ vmw_ptr_diff(sw_context->buf_start,
+ id_loc),
+ vmw_res_rel_normal);
if (unlikely(ret != 0))
return ret;
@@ -721,7 +771,8 @@
return vmw_resource_relocation_add
(&sw_context->res_relocations, res,
- id_loc - sw_context->buf_start);
+ vmw_ptr_diff(sw_context->buf_start, id_loc),
+ vmw_res_rel_normal);
}
ret = vmw_user_resource_lookup_handle(dev_priv,
@@ -2143,10 +2194,10 @@
return ret;
return vmw_resource_relocation_add(&sw_context->res_relocations,
- NULL, &cmd->header.id -
- sw_context->buf_start);
-
- return 0;
+ NULL,
+ vmw_ptr_diff(sw_context->buf_start,
+ &cmd->header.id),
+ vmw_res_rel_nop);
}
/**
@@ -2188,10 +2239,10 @@
return ret;
return vmw_resource_relocation_add(&sw_context->res_relocations,
- NULL, &cmd->header.id -
- sw_context->buf_start);
-
- return 0;
+ NULL,
+ vmw_ptr_diff(sw_context->buf_start,
+ &cmd->header.id),
+ vmw_res_rel_nop);
}
/**
@@ -2848,8 +2899,7 @@
* @header: Pointer to the command header in the command stream.
*
* Check that the view exists, and if it was not created using this
- * command batch, make sure it's validated (present in the device) so that
- * the remove command will not confuse the device.
+ * command batch, conditionally make this command a NOP.
*/
static int vmw_cmd_dx_view_remove(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context,
@@ -2877,10 +2927,16 @@
return ret;
/*
- * Add view to the validate list iff it was not created using this
- * command batch.
+ * If the view wasn't created during this command batch, it might
+ * have been removed due to a context swapout, so add a
+ * relocation to conditionally make this command a NOP to avoid
+ * device errors.
*/
- return vmw_view_res_val_add(sw_context, view);
+ return vmw_resource_relocation_add(&sw_context->res_relocations,
+ view,
+ vmw_ptr_diff(sw_context->buf_start,
+ &cmd->header.id),
+ vmw_res_rel_cond_nop);
}
/**
@@ -3029,6 +3085,35 @@
cmd->body.shaderResourceViewId);
}
+/**
+ * vmw_cmd_dx_transfer_from_buffer -
+ * Validate an SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_transfer_from_buffer(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdDXTransferFromBuffer body;
+ } *cmd = container_of(header, typeof(*cmd), header);
+ int ret;
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter,
+ &cmd->body.srcSid, NULL);
+ if (ret != 0)
+ return ret;
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter,
+ &cmd->body.destSid, NULL);
+}
+
static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context,
void *buf, uint32_t *size)
@@ -3379,6 +3464,9 @@
&vmw_cmd_buffer_copy_check, true, false, true),
VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY_REGION,
&vmw_cmd_pred_copy_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER,
+ &vmw_cmd_dx_transfer_from_buffer,
+ true, false, true),
};
static int vmw_cmd_check(struct vmw_private *dev_priv,
@@ -3848,14 +3936,14 @@
int ret;
*header = NULL;
- if (!dev_priv->cman || kernel_commands)
- return kernel_commands;
-
if (command_size > SVGA_CB_MAX_SIZE) {
DRM_ERROR("Command buffer is too large.\n");
return ERR_PTR(-EINVAL);
}
+ if (!dev_priv->cman || kernel_commands)
+ return kernel_commands;
+
/* If possible, add a little space for fencing. */
cmdbuf_size = command_size + 512;
cmdbuf_size = min_t(size_t, cmdbuf_size, SVGA_CB_MAX_SIZE);
@@ -4232,9 +4320,6 @@
ttm_bo_unref(&query_val.bo);
ttm_bo_unref(&pinned_val.bo);
vmw_dmabuf_unreference(&dev_priv->pinned_bo);
- DRM_INFO("Dummy query bo pin count: %d\n",
- dev_priv->dummy_query_bo->pin_count);
-
out_unlock:
return;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 6a328d5..52ca1c9 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -574,10 +574,8 @@
bool nonblock = !!(flags & drm_vmw_synccpu_dontblock);
long lret;
- if (nonblock)
- return reservation_object_test_signaled_rcu(bo->resv, true) ? 0 : -EBUSY;
-
- lret = reservation_object_wait_timeout_rcu(bo->resv, true, true, MAX_SCHEDULE_TIMEOUT);
+ lret = reservation_object_wait_timeout_rcu(bo->resv, true, true,
+ nonblock ? 0 : MAX_SCHEDULE_TIMEOUT);
if (!lret)
return -EBUSY;
else if (lret < 0)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index c2a721a..b445ce9 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -324,7 +324,7 @@
if (res->id != -1) {
cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size());
- if (unlikely(cmd == NULL)) {
+ if (unlikely(!cmd)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"destruction.\n");
return;
@@ -397,7 +397,7 @@
submit_size = vmw_surface_define_size(srf);
cmd = vmw_fifo_reserve(dev_priv, submit_size);
- if (unlikely(cmd == NULL)) {
+ if (unlikely(!cmd)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"creation.\n");
ret = -ENOMEM;
@@ -446,11 +446,10 @@
uint8_t *cmd;
struct vmw_private *dev_priv = res->dev_priv;
- BUG_ON(val_buf->bo == NULL);
-
+ BUG_ON(!val_buf->bo);
submit_size = vmw_surface_dma_size(srf);
cmd = vmw_fifo_reserve(dev_priv, submit_size);
- if (unlikely(cmd == NULL)) {
+ if (unlikely(!cmd)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"DMA.\n");
return -ENOMEM;
@@ -538,7 +537,7 @@
submit_size = vmw_surface_destroy_size();
cmd = vmw_fifo_reserve(dev_priv, submit_size);
- if (unlikely(cmd == NULL)) {
+ if (unlikely(!cmd)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"eviction.\n");
return -ENOMEM;
@@ -578,7 +577,7 @@
int ret;
struct vmw_resource *res = &srf->res;
- BUG_ON(res_free == NULL);
+ BUG_ON(!res_free);
if (!dev_priv->has_mob)
vmw_fifo_resource_inc(dev_priv);
ret = vmw_resource_init(dev_priv, res, true, res_free,
@@ -700,7 +699,6 @@
struct drm_vmw_surface_create_req *req = &arg->req;
struct drm_vmw_surface_arg *rep = &arg->rep;
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
- struct drm_vmw_size __user *user_sizes;
int ret;
int i, j;
uint32_t cur_bo_offset;
@@ -748,7 +746,7 @@
}
user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
- if (unlikely(user_srf == NULL)) {
+ if (unlikely(!user_srf)) {
ret = -ENOMEM;
goto out_no_user_srf;
}
@@ -763,29 +761,21 @@
memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels));
srf->num_sizes = num_sizes;
user_srf->size = size;
-
- srf->sizes = kmalloc(srf->num_sizes * sizeof(*srf->sizes), GFP_KERNEL);
- if (unlikely(srf->sizes == NULL)) {
- ret = -ENOMEM;
+ srf->sizes = memdup_user((struct drm_vmw_size __user *)(unsigned long)
+ req->size_addr,
+ sizeof(*srf->sizes) * srf->num_sizes);
+ if (IS_ERR(srf->sizes)) {
+ ret = PTR_ERR(srf->sizes);
goto out_no_sizes;
}
- srf->offsets = kmalloc(srf->num_sizes * sizeof(*srf->offsets),
- GFP_KERNEL);
- if (unlikely(srf->offsets == NULL)) {
+ srf->offsets = kmalloc_array(srf->num_sizes,
+ sizeof(*srf->offsets),
+ GFP_KERNEL);
+ if (unlikely(!srf->offsets)) {
ret = -ENOMEM;
goto out_no_offsets;
}
- user_sizes = (struct drm_vmw_size __user *)(unsigned long)
- req->size_addr;
-
- ret = copy_from_user(srf->sizes, user_sizes,
- srf->num_sizes * sizeof(*srf->sizes));
- if (unlikely(ret != 0)) {
- ret = -EFAULT;
- goto out_no_copy;
- }
-
srf->base_size = *srf->sizes;
srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
srf->multisample_count = 0;
@@ -923,7 +913,7 @@
ret = -EINVAL;
base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle);
- if (unlikely(base == NULL)) {
+ if (unlikely(!base)) {
DRM_ERROR("Could not find surface to reference.\n");
goto out_no_lookup;
}
@@ -1069,7 +1059,7 @@
cmd = vmw_fifo_reserve(dev_priv, submit_len);
cmd2 = (typeof(cmd2))cmd;
- if (unlikely(cmd == NULL)) {
+ if (unlikely(!cmd)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"creation.\n");
ret = -ENOMEM;
@@ -1135,7 +1125,7 @@
submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0);
cmd1 = vmw_fifo_reserve(dev_priv, submit_size);
- if (unlikely(cmd1 == NULL)) {
+ if (unlikely(!cmd1)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"binding.\n");
return -ENOMEM;
@@ -1185,7 +1175,7 @@
submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2));
cmd = vmw_fifo_reserve(dev_priv, submit_size);
- if (unlikely(cmd == NULL)) {
+ if (unlikely(!cmd)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"unbinding.\n");
return -ENOMEM;
@@ -1244,7 +1234,7 @@
vmw_binding_res_list_scrub(&res->binding_head);
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
- if (unlikely(cmd == NULL)) {
+ if (unlikely(!cmd)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"destruction.\n");
mutex_unlock(&dev_priv->binding_mutex);
@@ -1410,7 +1400,7 @@
user_srf = container_of(base, struct vmw_user_surface, prime.base);
srf = &user_srf->srf;
- if (srf->res.backup == NULL) {
+ if (!srf->res.backup) {
DRM_ERROR("Shared GB surface is missing a backup buffer.\n");
goto out_bad_resource;
}
@@ -1524,7 +1514,7 @@
}
user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
- if (unlikely(user_srf == NULL)) {
+ if (unlikely(!user_srf)) {
ret = -ENOMEM;
goto out_no_user_srf;
}
diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c
index 8fd4bf7..818ea7d 100644
--- a/drivers/hid/hid-dr.c
+++ b/drivers/hid/hid-dr.c
@@ -234,58 +234,6 @@
0xC0 /* End Collection */
};
-static __u8 pid0006_rdesc_fixed[] = {
- 0x05, 0x01, /* Usage Page (Generic Desktop) */
- 0x09, 0x04, /* Usage (Joystick) */
- 0xA1, 0x01, /* Collection (Application) */
- 0xA1, 0x02, /* Collection (Logical) */
- 0x75, 0x08, /* Report Size (8) */
- 0x95, 0x05, /* Report Count (5) */
- 0x15, 0x00, /* Logical Minimum (0) */
- 0x26, 0xFF, 0x00, /* Logical Maximum (255) */
- 0x35, 0x00, /* Physical Minimum (0) */
- 0x46, 0xFF, 0x00, /* Physical Maximum (255) */
- 0x09, 0x30, /* Usage (X) */
- 0x09, 0x33, /* Usage (Ry) */
- 0x09, 0x32, /* Usage (Z) */
- 0x09, 0x31, /* Usage (Y) */
- 0x09, 0x34, /* Usage (Ry) */
- 0x81, 0x02, /* Input (Variable) */
- 0x75, 0x04, /* Report Size (4) */
- 0x95, 0x01, /* Report Count (1) */
- 0x25, 0x07, /* Logical Maximum (7) */
- 0x46, 0x3B, 0x01, /* Physical Maximum (315) */
- 0x65, 0x14, /* Unit (Centimeter) */
- 0x09, 0x39, /* Usage (Hat switch) */
- 0x81, 0x42, /* Input (Variable) */
- 0x65, 0x00, /* Unit (None) */
- 0x75, 0x01, /* Report Size (1) */
- 0x95, 0x0C, /* Report Count (12) */
- 0x25, 0x01, /* Logical Maximum (1) */
- 0x45, 0x01, /* Physical Maximum (1) */
- 0x05, 0x09, /* Usage Page (Button) */
- 0x19, 0x01, /* Usage Minimum (0x01) */
- 0x29, 0x0C, /* Usage Maximum (0x0C) */
- 0x81, 0x02, /* Input (Variable) */
- 0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined) */
- 0x75, 0x01, /* Report Size (1) */
- 0x95, 0x08, /* Report Count (8) */
- 0x25, 0x01, /* Logical Maximum (1) */
- 0x45, 0x01, /* Physical Maximum (1) */
- 0x09, 0x01, /* Usage (0x01) */
- 0x81, 0x02, /* Input (Variable) */
- 0xC0, /* End Collection */
- 0xA1, 0x02, /* Collection (Logical) */
- 0x75, 0x08, /* Report Size (8) */
- 0x95, 0x07, /* Report Count (7) */
- 0x46, 0xFF, 0x00, /* Physical Maximum (255) */
- 0x26, 0xFF, 0x00, /* Logical Maximum (255) */
- 0x09, 0x02, /* Usage (0x02) */
- 0x91, 0x02, /* Output (Variable) */
- 0xC0, /* End Collection */
- 0xC0 /* End Collection */
-};
-
static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
@@ -296,16 +244,34 @@
*rsize = sizeof(pid0011_rdesc_fixed);
}
break;
- case 0x0006:
- if (*rsize == sizeof(pid0006_rdesc_fixed)) {
- rdesc = pid0006_rdesc_fixed;
- *rsize = sizeof(pid0006_rdesc_fixed);
- }
- break;
}
return rdesc;
}
+#define map_abs(c) hid_map_usage(hi, usage, bit, max, EV_ABS, (c))
+#define map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c))
+
+static int dr_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ switch (usage->hid) {
+ /*
+ * revert to the old hid-input behavior where axes
+ * can be randomly assigned when hid->usage is reused.
+ */
+ case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
+ case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
+ if (field->flags & HID_MAIN_ITEM_RELATIVE)
+ map_rel(usage->hid & 0xf);
+ else
+ map_abs(usage->hid & 0xf);
+ return 1;
+ }
+
+ return 0;
+}
+
static int dr_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
@@ -352,6 +318,7 @@
.id_table = dr_devices,
.report_fixup = dr_report_fixup,
.probe = dr_probe,
+ .input_mapping = dr_input_mapping,
};
module_hid_driver(dr_driver);
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index cd59c79..6cfb5ca 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -64,6 +64,9 @@
#define USB_VENDOR_ID_AKAI 0x2011
#define USB_DEVICE_ID_AKAI_MPKMINI2 0x0715
+#define USB_VENDOR_ID_AKAI_09E8 0x09E8
+#define USB_DEVICE_ID_AKAI_09E8_MIDIMIX 0x0031
+
#define USB_VENDOR_ID_ALCOR 0x058f
#define USB_DEVICE_ID_ALCOR_USBRS232 0x9720
diff --git a/drivers/hid/hid-led.c b/drivers/hid/hid-led.c
index d8d55f3..d3e1ab1 100644
--- a/drivers/hid/hid-led.c
+++ b/drivers/hid/hid-led.c
@@ -100,6 +100,7 @@
const struct hidled_config *config;
struct hid_device *hdev;
struct hidled_rgb *rgb;
+ u8 *buf;
struct mutex lock;
};
@@ -118,13 +119,19 @@
mutex_lock(&ldev->lock);
+ /*
+ * buffer provided to hid_hw_raw_request must not be on the stack
+ * and must not be part of a data structure
+ */
+ memcpy(ldev->buf, buf, ldev->config->report_size);
+
if (ldev->config->report_type == RAW_REQUEST)
- ret = hid_hw_raw_request(ldev->hdev, buf[0], buf,
+ ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf,
ldev->config->report_size,
HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
else if (ldev->config->report_type == OUTPUT_REPORT)
- ret = hid_hw_output_report(ldev->hdev, buf,
+ ret = hid_hw_output_report(ldev->hdev, ldev->buf,
ldev->config->report_size);
else
ret = -EINVAL;
@@ -147,17 +154,21 @@
mutex_lock(&ldev->lock);
- ret = hid_hw_raw_request(ldev->hdev, buf[0], buf,
+ memcpy(ldev->buf, buf, ldev->config->report_size);
+
+ ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf,
ldev->config->report_size,
HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
if (ret < 0)
goto err;
- ret = hid_hw_raw_request(ldev->hdev, buf[0], buf,
+ ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf,
ldev->config->report_size,
HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
+
+ memcpy(buf, ldev->buf, ldev->config->report_size);
err:
mutex_unlock(&ldev->lock);
@@ -447,6 +458,10 @@
if (!ldev)
return -ENOMEM;
+ ldev->buf = devm_kmalloc(&hdev->dev, MAX_REPORT_SIZE, GFP_KERNEL);
+ if (!ldev->buf)
+ return -ENOMEM;
+
ret = hid_parse(hdev);
if (ret)
return ret;
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 0a0eca5..354d49e 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -56,6 +56,7 @@
{ USB_VENDOR_ID_AIREN, USB_DEVICE_ID_AIREN_SLIMPLUS, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_AKAI, USB_DEVICE_ID_AKAI_MPKMINI2, HID_QUIRK_NO_INIT_REPORTS },
+ { USB_VENDOR_ID_AKAI_09E8, USB_DEVICE_ID_AKAI_09E8_MIDIMIX, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index c68746c..224ad27 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -94,6 +94,7 @@
unsigned long dma_attrs = 0;
struct scatterlist *sg, *sg_list_start;
int need_release = 0;
+ unsigned int gup_flags = FOLL_WRITE;
if (dmasync)
dma_attrs |= DMA_ATTR_WRITE_BARRIER;
@@ -183,6 +184,9 @@
if (ret)
goto out;
+ if (!umem->writable)
+ gup_flags |= FOLL_FORCE;
+
need_release = 1;
sg_list_start = umem->sg_head.sgl;
@@ -190,7 +194,7 @@
ret = get_user_pages(cur_base,
min_t(unsigned long, npages,
PAGE_SIZE / sizeof (struct page *)),
- 1, !umem->writable, page_list, vma_list);
+ gup_flags, page_list, vma_list);
if (ret < 0)
goto out;
diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index 75077a0..1f0fe32 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -527,6 +527,7 @@
u64 off;
int j, k, ret = 0, start_idx, npages = 0;
u64 base_virt_addr;
+ unsigned int flags = 0;
if (access_mask == 0)
return -EINVAL;
@@ -556,6 +557,9 @@
goto out_put_task;
}
+ if (access_mask & ODP_WRITE_ALLOWED_BIT)
+ flags |= FOLL_WRITE;
+
start_idx = (user_virt - ib_umem_start(umem)) >> PAGE_SHIFT;
k = start_idx;
@@ -574,8 +578,7 @@
*/
npages = get_user_pages_remote(owning_process, owning_mm,
user_virt, gup_num_pages,
- access_mask & ODP_WRITE_ALLOWED_BIT,
- 0, local_page_list, NULL);
+ flags, local_page_list, NULL);
up_read(&owning_mm->mmap_sem);
if (npages < 0)
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c
index 6c00d04..c6fe89d 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -472,7 +472,7 @@
goto out;
}
- ret = get_user_pages(uaddr & PAGE_MASK, 1, 1, 0, pages, NULL);
+ ret = get_user_pages(uaddr & PAGE_MASK, 1, FOLL_WRITE, pages, NULL);
if (ret < 0)
goto out;
diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c
index 2d2b94f..75f0862 100644
--- a/drivers/infiniband/hw/qib/qib_user_pages.c
+++ b/drivers/infiniband/hw/qib/qib_user_pages.c
@@ -67,7 +67,8 @@
for (got = 0; got < num_pages; got += ret) {
ret = get_user_pages(start_page + got * PAGE_SIZE,
- num_pages - got, 1, 1,
+ num_pages - got,
+ FOLL_WRITE | FOLL_FORCE,
p + got, NULL);
if (ret < 0)
goto bail_release;
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c
index a0b6ebe..1ccee6e 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.c
@@ -111,6 +111,7 @@
int i;
int flags;
dma_addr_t pa;
+ unsigned int gup_flags;
if (!can_do_mlock())
return -EPERM;
@@ -135,6 +136,8 @@
flags = IOMMU_READ | IOMMU_CACHE;
flags |= (writable) ? IOMMU_WRITE : 0;
+ gup_flags = FOLL_WRITE;
+ gup_flags |= (writable) ? 0 : FOLL_FORCE;
cur_base = addr & PAGE_MASK;
ret = 0;
@@ -142,7 +145,7 @@
ret = get_user_pages(cur_base,
min_t(unsigned long, npages,
PAGE_SIZE / sizeof(struct page *)),
- 1, !writable, page_list, NULL);
+ gup_flags, page_list, NULL);
if (ret < 0)
goto out;
diff --git a/drivers/media/pci/ivtv/ivtv-udma.c b/drivers/media/pci/ivtv/ivtv-udma.c
index 4769469..2c9232e 100644
--- a/drivers/media/pci/ivtv/ivtv-udma.c
+++ b/drivers/media/pci/ivtv/ivtv-udma.c
@@ -124,8 +124,8 @@
}
/* Get user pages for DMA Xfer */
- err = get_user_pages_unlocked(user_dma.uaddr, user_dma.page_count, 0,
- 1, dma->map);
+ err = get_user_pages_unlocked(user_dma.uaddr, user_dma.page_count,
+ dma->map, FOLL_FORCE);
if (user_dma.page_count != err) {
IVTV_DEBUG_WARN("failed to map user pages, returned %d instead of %d\n",
diff --git a/drivers/media/pci/ivtv/ivtv-yuv.c b/drivers/media/pci/ivtv/ivtv-yuv.c
index b094054..f7299d3 100644
--- a/drivers/media/pci/ivtv/ivtv-yuv.c
+++ b/drivers/media/pci/ivtv/ivtv-yuv.c
@@ -76,11 +76,12 @@
/* Get user pages for DMA Xfer */
y_pages = get_user_pages_unlocked(y_dma.uaddr,
- y_dma.page_count, 0, 1, &dma->map[0]);
+ y_dma.page_count, &dma->map[0], FOLL_FORCE);
uv_pages = 0; /* silence gcc. value is set and consumed only if: */
if (y_pages == y_dma.page_count) {
uv_pages = get_user_pages_unlocked(uv_dma.uaddr,
- uv_dma.page_count, 0, 1, &dma->map[y_pages]);
+ uv_dma.page_count, &dma->map[y_pages],
+ FOLL_FORCE);
}
if (y_pages != y_dma.page_count || uv_pages != uv_dma.page_count) {
diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index e668dde..a31b95c 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -214,7 +214,7 @@
if (!vec)
return -ENOMEM;
- ret = get_vaddr_frames(virtp, 1, true, false, vec);
+ ret = get_vaddr_frames(virtp, 1, FOLL_WRITE, vec);
if (ret != 1) {
frame_vector_destroy(vec);
return -EINVAL;
diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c
index f300f06..1db0af6 100644
--- a/drivers/media/v4l2-core/videobuf-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf-dma-sg.c
@@ -156,6 +156,7 @@
{
unsigned long first, last;
int err, rw = 0;
+ unsigned int flags = FOLL_FORCE;
dma->direction = direction;
switch (dma->direction) {
@@ -178,12 +179,14 @@
if (NULL == dma->pages)
return -ENOMEM;
+ if (rw == READ)
+ flags |= FOLL_WRITE;
+
dprintk(1, "init user [0x%lx+0x%lx => %d pages]\n",
data, size, dma->nr_pages);
err = get_user_pages(data & PAGE_MASK, dma->nr_pages,
- rw == READ, 1, /* force */
- dma->pages, NULL);
+ flags, dma->pages, NULL);
if (err != dma->nr_pages) {
dma->nr_pages = (err >= 0) ? err : 0;
diff --git a/drivers/media/v4l2-core/videobuf2-memops.c b/drivers/media/v4l2-core/videobuf2-memops.c
index 3c3b517..1cd322e 100644
--- a/drivers/media/v4l2-core/videobuf2-memops.c
+++ b/drivers/media/v4l2-core/videobuf2-memops.c
@@ -42,6 +42,10 @@
unsigned long first, last;
unsigned long nr;
struct frame_vector *vec;
+ unsigned int flags = FOLL_FORCE;
+
+ if (write)
+ flags |= FOLL_WRITE;
first = start >> PAGE_SHIFT;
last = (start + length - 1) >> PAGE_SHIFT;
@@ -49,7 +53,7 @@
vec = frame_vector_create(nr);
if (!vec)
return ERR_PTR(-ENOMEM);
- ret = get_vaddr_frames(start & PAGE_MASK, nr, write, true, vec);
+ ret = get_vaddr_frames(start & PAGE_MASK, nr, flags, vec);
if (ret < 0)
goto out_destroy;
/* We accept only complete set of PFNs */
diff --git a/drivers/memstick/host/rtsx_usb_ms.c b/drivers/memstick/host/rtsx_usb_ms.c
index d34bc35..2e3cf01 100644
--- a/drivers/memstick/host/rtsx_usb_ms.c
+++ b/drivers/memstick/host/rtsx_usb_ms.c
@@ -524,6 +524,7 @@
int rc;
if (!host->req) {
+ pm_runtime_get_sync(ms_dev(host));
do {
rc = memstick_next_req(msh, &host->req);
dev_dbg(ms_dev(host), "next req %d\n", rc);
@@ -544,6 +545,7 @@
host->req->error);
}
} while (!rc);
+ pm_runtime_put(ms_dev(host));
}
}
@@ -570,6 +572,7 @@
dev_dbg(ms_dev(host), "%s: param = %d, value = %d\n",
__func__, param, value);
+ pm_runtime_get_sync(ms_dev(host));
mutex_lock(&ucr->dev_mutex);
err = rtsx_usb_card_exclusive_check(ucr, RTSX_USB_MS_CARD);
@@ -635,6 +638,7 @@
}
out:
mutex_unlock(&ucr->dev_mutex);
+ pm_runtime_put(ms_dev(host));
/* power-on delay */
if (param == MEMSTICK_POWER && value == MEMSTICK_POWER_ON)
@@ -681,6 +685,7 @@
int err;
for (;;) {
+ pm_runtime_get_sync(ms_dev(host));
mutex_lock(&ucr->dev_mutex);
/* Check pending MS card changes */
@@ -703,6 +708,7 @@
}
poll_again:
+ pm_runtime_put(ms_dev(host));
if (host->eject)
break;
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index f3d34b9..af23d7d 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c
@@ -229,6 +229,14 @@
if (ctx->status == STARTED)
goto out; /* already started */
+ /*
+ * Increment the mapped context count for adapter. This also checks
+ * if adapter_context_lock is taken.
+ */
+ rc = cxl_adapter_context_get(ctx->afu->adapter);
+ if (rc)
+ goto out;
+
if (task) {
ctx->pid = get_task_pid(task, PIDTYPE_PID);
ctx->glpid = get_task_pid(task->group_leader, PIDTYPE_PID);
@@ -240,6 +248,7 @@
if ((rc = cxl_ops->attach_process(ctx, kernel, wed, 0))) {
put_pid(ctx->pid);
+ cxl_adapter_context_put(ctx->afu->adapter);
cxl_ctx_put();
goto out;
}
diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c
index c466ee2..5e506c1 100644
--- a/drivers/misc/cxl/context.c
+++ b/drivers/misc/cxl/context.c
@@ -238,6 +238,9 @@
put_pid(ctx->glpid);
cxl_ctx_put();
+
+ /* Decrease the attached context count on the adapter */
+ cxl_adapter_context_put(ctx->afu->adapter);
return 0;
}
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h
index 01d372a..a144073 100644
--- a/drivers/misc/cxl/cxl.h
+++ b/drivers/misc/cxl/cxl.h
@@ -618,6 +618,14 @@
bool perst_select_user;
bool perst_same_image;
bool psl_timebase_synced;
+
+ /*
+ * number of contexts mapped on to this card. Possible values are:
+ * >0: Number of contexts mapped and new one can be mapped.
+ * 0: No active contexts and new ones can be mapped.
+ * -1: No contexts mapped and new ones cannot be mapped.
+ */
+ atomic_t contexts_num;
};
int cxl_pci_alloc_one_irq(struct cxl *adapter);
@@ -944,4 +952,20 @@
/* decode AFU error bits in the PSL register PSL_SERR_An */
void cxl_afu_decode_psl_serr(struct cxl_afu *afu, u64 serr);
+
+/*
+ * Increments the number of attached contexts on an adapter.
+ * In case an adapter_context_lock is taken the return -EBUSY.
+ */
+int cxl_adapter_context_get(struct cxl *adapter);
+
+/* Decrements the number of attached contexts on an adapter */
+void cxl_adapter_context_put(struct cxl *adapter);
+
+/* If no active contexts then prevents contexts from being attached */
+int cxl_adapter_context_lock(struct cxl *adapter);
+
+/* Unlock the contexts-lock if taken. Warn and force unlock otherwise */
+void cxl_adapter_context_unlock(struct cxl *adapter);
+
#endif
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c
index 5fb9894..d0b421f 100644
--- a/drivers/misc/cxl/file.c
+++ b/drivers/misc/cxl/file.c
@@ -205,11 +205,22 @@
ctx->pid = get_task_pid(current, PIDTYPE_PID);
ctx->glpid = get_task_pid(current->group_leader, PIDTYPE_PID);
+ /*
+ * Increment the mapped context count for adapter. This also checks
+ * if adapter_context_lock is taken.
+ */
+ rc = cxl_adapter_context_get(ctx->afu->adapter);
+ if (rc) {
+ afu_release_irqs(ctx, ctx);
+ goto out;
+ }
+
trace_cxl_attach(ctx, work.work_element_descriptor, work.num_interrupts, amr);
if ((rc = cxl_ops->attach_process(ctx, false, work.work_element_descriptor,
amr))) {
afu_release_irqs(ctx, ctx);
+ cxl_adapter_context_put(ctx->afu->adapter);
goto out;
}
diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c
index 9aa58a7..3e102cd 100644
--- a/drivers/misc/cxl/guest.c
+++ b/drivers/misc/cxl/guest.c
@@ -1152,6 +1152,9 @@
if ((rc = cxl_sysfs_adapter_add(adapter)))
goto err_put1;
+ /* release the context lock as the adapter is configured */
+ cxl_adapter_context_unlock(adapter);
+
return adapter;
err_put1:
diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c
index d9be23b2..62e0dfb 100644
--- a/drivers/misc/cxl/main.c
+++ b/drivers/misc/cxl/main.c
@@ -243,8 +243,10 @@
if (dev_set_name(&adapter->dev, "card%i", adapter->adapter_num))
goto err2;
- return adapter;
+ /* start with context lock taken */
+ atomic_set(&adapter->contexts_num, -1);
+ return adapter;
err2:
cxl_remove_adapter_nr(adapter);
err1:
@@ -286,6 +288,44 @@
return 0;
}
+int cxl_adapter_context_get(struct cxl *adapter)
+{
+ int rc;
+
+ rc = atomic_inc_unless_negative(&adapter->contexts_num);
+ return rc >= 0 ? 0 : -EBUSY;
+}
+
+void cxl_adapter_context_put(struct cxl *adapter)
+{
+ atomic_dec_if_positive(&adapter->contexts_num);
+}
+
+int cxl_adapter_context_lock(struct cxl *adapter)
+{
+ int rc;
+ /* no active contexts -> contexts_num == 0 */
+ rc = atomic_cmpxchg(&adapter->contexts_num, 0, -1);
+ return rc ? -EBUSY : 0;
+}
+
+void cxl_adapter_context_unlock(struct cxl *adapter)
+{
+ int val = atomic_cmpxchg(&adapter->contexts_num, -1, 0);
+
+ /*
+ * contexts lock taken -> contexts_num == -1
+ * If not true then show a warning and force reset the lock.
+ * This will happen when context_unlock was requested without
+ * doing a context_lock.
+ */
+ if (val != -1) {
+ atomic_set(&adapter->contexts_num, 0);
+ WARN(1, "Adapter context unlocked with %d active contexts",
+ val);
+ }
+}
+
static int __init init_cxl(void)
{
int rc = 0;
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 7afad84..e96be9c 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1487,6 +1487,8 @@
if ((rc = cxl_native_register_psl_err_irq(adapter)))
goto err;
+ /* Release the context lock as adapter is configured */
+ cxl_adapter_context_unlock(adapter);
return 0;
err:
diff --git a/drivers/misc/cxl/sysfs.c b/drivers/misc/cxl/sysfs.c
index b043c20..a8b6d6a 100644
--- a/drivers/misc/cxl/sysfs.c
+++ b/drivers/misc/cxl/sysfs.c
@@ -75,12 +75,31 @@
int val;
rc = sscanf(buf, "%i", &val);
- if ((rc != 1) || (val != 1))
+ if ((rc != 1) || (val != 1 && val != -1))
return -EINVAL;
- if ((rc = cxl_ops->adapter_reset(adapter)))
- return rc;
- return count;
+ /*
+ * See if we can lock the context mapping that's only allowed
+ * when there are no contexts attached to the adapter. Once
+ * taken this will also prevent any context from getting activated.
+ */
+ if (val == 1) {
+ rc = cxl_adapter_context_lock(adapter);
+ if (rc)
+ goto out;
+
+ rc = cxl_ops->adapter_reset(adapter);
+ /* In case reset failed release context lock */
+ if (rc)
+ cxl_adapter_context_unlock(adapter);
+
+ } else if (val == -1) {
+ /* Perform a forced adapter reset */
+ rc = cxl_ops->adapter_reset(adapter);
+ }
+
+out:
+ return rc ? rc : count;
}
static ssize_t load_image_on_perst_show(struct device *device,
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c
index e0203b1..f806a44 100644
--- a/drivers/misc/mic/scif/scif_rma.c
+++ b/drivers/misc/mic/scif/scif_rma.c
@@ -1396,8 +1396,7 @@
pinned_pages->nr_pages = get_user_pages(
(u64)addr,
nr_pages,
- !!(prot & SCIF_PROT_WRITE),
- 0,
+ (prot & SCIF_PROT_WRITE) ? FOLL_WRITE : 0,
pinned_pages->pages,
NULL);
up_write(&mm->mmap_sem);
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c
index a2d97b9..6fb773d 100644
--- a/drivers/misc/sgi-gru/grufault.c
+++ b/drivers/misc/sgi-gru/grufault.c
@@ -198,7 +198,7 @@
#else
*pageshift = PAGE_SHIFT;
#endif
- if (get_user_pages(vaddr, 1, write, 0, &page, NULL) <= 0)
+ if (get_user_pages(vaddr, 1, write ? FOLL_WRITE : 0, &page, NULL) <= 0)
return -EFAULT;
*paddr = page_to_phys(page);
put_page(page);
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index c333511..709a872 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -46,6 +46,7 @@
#include <asm/uaccess.h>
#include "queue.h"
+#include "block.h"
MODULE_ALIAS("mmc:block");
#ifdef MODULE_PARAM_PREFIX
@@ -1786,7 +1787,7 @@
struct mmc_blk_data *md = mq->data;
struct mmc_packed *packed = mqrq->packed;
bool do_rel_wr, do_data_tag;
- u32 *packed_cmd_hdr;
+ __le32 *packed_cmd_hdr;
u8 hdr_blocks;
u8 i = 1;
diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h
index 3c15a75..342f1e3 100644
--- a/drivers/mmc/card/queue.h
+++ b/drivers/mmc/card/queue.h
@@ -31,7 +31,7 @@
struct mmc_packed {
struct list_head list;
- u32 cmd_hdr[1024];
+ __le32 cmd_hdr[1024];
unsigned int blocks;
u8 nr_entries;
u8 retries;
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 3486bc7..39fc5b2 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1263,6 +1263,16 @@
goto out_err;
}
+ if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_2V)
+ err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120);
+
+ if (err && card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_8V)
+ err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180);
+
+ /* If fails try again during next card power cycle */
+ if (err)
+ goto out_err;
+
err = mmc_select_bus_width(card);
if (err < 0)
goto out_err;
@@ -1272,6 +1282,8 @@
if (err)
goto out_err;
+ mmc_set_clock(host, card->ext_csd.hs_max_dtr);
+
err = mmc_switch_status(card);
if (err)
goto out_err;
diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c
index 4106295..6e9c0f8 100644
--- a/drivers/mmc/host/rtsx_usb_sdmmc.c
+++ b/drivers/mmc/host/rtsx_usb_sdmmc.c
@@ -1138,11 +1138,6 @@
dev_dbg(sdmmc_dev(host), "%s\n", __func__);
mutex_lock(&ucr->dev_mutex);
- if (rtsx_usb_card_exclusive_check(ucr, RTSX_USB_SD_CARD)) {
- mutex_unlock(&ucr->dev_mutex);
- return;
- }
-
sd_set_power_mode(host, ios->power_mode);
sd_set_bus_width(host, ios->bus_width);
sd_set_timing(host, ios->timing, &host->ddr_mode);
@@ -1314,6 +1309,7 @@
container_of(work, struct rtsx_usb_sdmmc, led_work);
struct rtsx_ucr *ucr = host->ucr;
+ pm_runtime_get_sync(sdmmc_dev(host));
mutex_lock(&ucr->dev_mutex);
if (host->led.brightness == LED_OFF)
@@ -1322,6 +1318,7 @@
rtsx_usb_turn_on_led(ucr);
mutex_unlock(&ucr->dev_mutex);
+ pm_runtime_put(sdmmc_dev(host));
}
#endif
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 1f54fd8..7123ef9 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -346,7 +346,8 @@
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
u32 data;
- if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE)) {
+ if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE ||
+ reg == SDHCI_INT_STATUS)) {
if ((val & SDHCI_INT_CARD_INT) && !esdhc_is_usdhc(imx_data)) {
/*
* Clear and then set D3CD bit to avoid missing the
@@ -555,6 +556,25 @@
esdhc_clrset_le(host, 0xffff, val, reg);
}
+static u8 esdhc_readb_le(struct sdhci_host *host, int reg)
+{
+ u8 ret;
+ u32 val;
+
+ switch (reg) {
+ case SDHCI_HOST_CONTROL:
+ val = readl(host->ioaddr + reg);
+
+ ret = val & SDHCI_CTRL_LED;
+ ret |= (val >> 5) & SDHCI_CTRL_DMA_MASK;
+ ret |= (val & ESDHC_CTRL_4BITBUS);
+ ret |= (val & ESDHC_CTRL_8BITBUS) << 3;
+ return ret;
+ }
+
+ return readb(host->ioaddr + reg);
+}
+
static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -947,6 +967,7 @@
static struct sdhci_ops sdhci_esdhc_ops = {
.read_l = esdhc_readl_le,
.read_w = esdhc_readw_le,
+ .read_b = esdhc_readb_le,
.write_l = esdhc_writel_le,
.write_w = esdhc_writew_le,
.write_b = esdhc_writeb_le,
diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index da8e40a..410a55b 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -250,7 +250,7 @@
writel(vendor, host->ioaddr + SDHCI_ARASAN_VENDOR_REGISTER);
}
-void sdhci_arasan_reset(struct sdhci_host *host, u8 mask)
+static void sdhci_arasan_reset(struct sdhci_host *host, u8 mask)
{
u8 ctrl;
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -265,6 +265,28 @@
}
}
+static int sdhci_arasan_voltage_switch(struct mmc_host *mmc,
+ struct mmc_ios *ios)
+{
+ switch (ios->signal_voltage) {
+ case MMC_SIGNAL_VOLTAGE_180:
+ /*
+ * Plese don't switch to 1V8 as arasan,5.1 doesn't
+ * actually refer to this setting to indicate the
+ * signal voltage and the state machine will be broken
+ * actually if we force to enable 1V8. That's something
+ * like broken quirk but we could work around here.
+ */
+ return 0;
+ case MMC_SIGNAL_VOLTAGE_330:
+ case MMC_SIGNAL_VOLTAGE_120:
+ /* We don't support 3V3 and 1V2 */
+ break;
+ }
+
+ return -EINVAL;
+}
+
static struct sdhci_ops sdhci_arasan_ops = {
.set_clock = sdhci_arasan_set_clock,
.get_max_clock = sdhci_pltfm_clk_get_max_clock,
@@ -661,6 +683,8 @@
host->mmc_host_ops.hs400_enhanced_strobe =
sdhci_arasan_hs400_enhanced_strobe;
+ host->mmc_host_ops.start_signal_voltage_switch =
+ sdhci_arasan_voltage_switch;
}
ret = sdhci_add_host(host);
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index 72a1f1f..1d9e00a 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -32,6 +32,14 @@
#include "sdhci-pci.h"
#include "sdhci-pci-o2micro.h"
+static int sdhci_pci_enable_dma(struct sdhci_host *host);
+static void sdhci_pci_set_bus_width(struct sdhci_host *host, int width);
+static void sdhci_pci_hw_reset(struct sdhci_host *host);
+static int sdhci_pci_select_drive_strength(struct sdhci_host *host,
+ struct mmc_card *card,
+ unsigned int max_dtr, int host_drv,
+ int card_drv, int *drv_type);
+
/*****************************************************************************\
* *
* Hardware specific quirk handling *
@@ -390,6 +398,45 @@
return 0;
}
+#define SDHCI_INTEL_PWR_TIMEOUT_CNT 20
+#define SDHCI_INTEL_PWR_TIMEOUT_UDELAY 100
+
+static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode,
+ unsigned short vdd)
+{
+ int cntr;
+ u8 reg;
+
+ sdhci_set_power(host, mode, vdd);
+
+ if (mode == MMC_POWER_OFF)
+ return;
+
+ /*
+ * Bus power might not enable after D3 -> D0 transition due to the
+ * present state not yet having propagated. Retry for up to 2ms.
+ */
+ for (cntr = 0; cntr < SDHCI_INTEL_PWR_TIMEOUT_CNT; cntr++) {
+ reg = sdhci_readb(host, SDHCI_POWER_CONTROL);
+ if (reg & SDHCI_POWER_ON)
+ break;
+ udelay(SDHCI_INTEL_PWR_TIMEOUT_UDELAY);
+ reg |= SDHCI_POWER_ON;
+ sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
+ }
+}
+
+static const struct sdhci_ops sdhci_intel_byt_ops = {
+ .set_clock = sdhci_set_clock,
+ .set_power = sdhci_intel_set_power,
+ .enable_dma = sdhci_pci_enable_dma,
+ .set_bus_width = sdhci_pci_set_bus_width,
+ .reset = sdhci_reset,
+ .set_uhs_signaling = sdhci_set_uhs_signaling,
+ .hw_reset = sdhci_pci_hw_reset,
+ .select_drive_strength = sdhci_pci_select_drive_strength,
+};
+
static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
.allow_runtime_pm = true,
.probe_slot = byt_emmc_probe_slot,
@@ -397,6 +444,7 @@
.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 |
SDHCI_QUIRK2_STOP_WITH_TC,
+ .ops = &sdhci_intel_byt_ops,
};
static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
@@ -405,6 +453,7 @@
SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
.allow_runtime_pm = true,
.probe_slot = byt_sdio_probe_slot,
+ .ops = &sdhci_intel_byt_ops,
};
static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
@@ -415,6 +464,7 @@
.allow_runtime_pm = true,
.own_cd_for_runtime_pm = true,
.probe_slot = byt_sd_probe_slot,
+ .ops = &sdhci_intel_byt_ops,
};
/* Define Host controllers for Intel Merrifield platform */
@@ -1648,7 +1698,9 @@
}
host->hw_name = "PCI";
- host->ops = &sdhci_pci_ops;
+ host->ops = chip->fixes && chip->fixes->ops ?
+ chip->fixes->ops :
+ &sdhci_pci_ops;
host->quirks = chip->quirks;
host->quirks2 = chip->quirks2;
diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h
index 9c7c08b..6bccf56 100644
--- a/drivers/mmc/host/sdhci-pci.h
+++ b/drivers/mmc/host/sdhci-pci.h
@@ -65,6 +65,8 @@
int (*suspend) (struct sdhci_pci_chip *);
int (*resume) (struct sdhci_pci_chip *);
+
+ const struct sdhci_ops *ops;
};
struct sdhci_pci_slot {
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index dd1938d..d0f5c05 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -315,7 +315,7 @@
struct mmc_host *mmc = host->mmc;
u8 pwr = host->pwr;
- sdhci_set_power(host, mode, vdd);
+ sdhci_set_power_noreg(host, mode, vdd);
if (host->pwr == pwr)
return;
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 4805566..71654b9 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -687,7 +687,7 @@
* host->clock is in Hz. target_timeout is in us.
* Hence, us = 1000000 * cycles / Hz. Round up.
*/
- val = 1000000 * data->timeout_clks;
+ val = 1000000ULL * data->timeout_clks;
if (do_div(val, host->clock))
target_timeout++;
target_timeout += val;
@@ -1077,6 +1077,10 @@
/* Initially, a command has no error */
cmd->error = 0;
+ if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) &&
+ cmd->opcode == MMC_STOP_TRANSMISSION)
+ cmd->flags |= MMC_RSP_BUSY;
+
/* Wait max 10 ms */
timeout = 10;
@@ -1390,8 +1394,8 @@
sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
}
-void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
- unsigned short vdd)
+void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode,
+ unsigned short vdd)
{
u8 pwr = 0;
@@ -1455,20 +1459,17 @@
mdelay(10);
}
}
-EXPORT_SYMBOL_GPL(sdhci_set_power);
+EXPORT_SYMBOL_GPL(sdhci_set_power_noreg);
-static void __sdhci_set_power(struct sdhci_host *host, unsigned char mode,
- unsigned short vdd)
+void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
+ unsigned short vdd)
{
- struct mmc_host *mmc = host->mmc;
-
- if (host->ops->set_power)
- host->ops->set_power(host, mode, vdd);
- else if (!IS_ERR(mmc->supply.vmmc))
- sdhci_set_power_reg(host, mode, vdd);
+ if (IS_ERR(host->mmc->supply.vmmc))
+ sdhci_set_power_noreg(host, mode, vdd);
else
- sdhci_set_power(host, mode, vdd);
+ sdhci_set_power_reg(host, mode, vdd);
}
+EXPORT_SYMBOL_GPL(sdhci_set_power);
/*****************************************************************************\
* *
@@ -1609,7 +1610,10 @@
}
}
- __sdhci_set_power(host, ios->power_mode, ios->vdd);
+ if (host->ops->set_power)
+ host->ops->set_power(host, ios->power_mode, ios->vdd);
+ else
+ sdhci_set_power(host, ios->power_mode, ios->vdd);
if (host->ops->platform_send_init_74_clocks)
host->ops->platform_send_init_74_clocks(host, ios->power_mode);
@@ -2409,7 +2413,7 @@
* *
\*****************************************************************************/
-static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *mask)
+static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
{
if (!host->cmd) {
/*
@@ -2453,11 +2457,6 @@
return;
}
- if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) &&
- !(host->cmd->flags & MMC_RSP_BUSY) && !host->data &&
- host->cmd->opcode == MMC_STOP_TRANSMISSION)
- *mask &= ~SDHCI_INT_DATA_END;
-
if (intmask & SDHCI_INT_RESPONSE)
sdhci_finish_command(host);
}
@@ -2680,8 +2679,7 @@
}
if (intmask & SDHCI_INT_CMD_MASK)
- sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK,
- &intmask);
+ sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK);
if (intmask & SDHCI_INT_DATA_MASK)
sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK);
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index c722cd2..766df17 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -683,6 +683,8 @@
void sdhci_set_clock(struct sdhci_host *host, unsigned int clock);
void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
unsigned short vdd);
+void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode,
+ unsigned short vdd);
void sdhci_set_bus_width(struct sdhci_host *host, int width);
void sdhci_reset(struct sdhci_host *host, u8 mask);
void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing);
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 329381a..79e679d 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -554,7 +554,7 @@
/* gcc-4.4.4 (at least) has issues with initializers and anon unions */
c.identify.opcode = nvme_admin_identify;
- c.identify.cns = cpu_to_le32(1);
+ c.identify.cns = cpu_to_le32(NVME_ID_CNS_CTRL);
*id = kmalloc(sizeof(struct nvme_id_ctrl), GFP_KERNEL);
if (!*id)
@@ -572,7 +572,7 @@
struct nvme_command c = { };
c.identify.opcode = nvme_admin_identify;
- c.identify.cns = cpu_to_le32(2);
+ c.identify.cns = cpu_to_le32(NVME_ID_CNS_NS_ACTIVE_LIST);
c.identify.nsid = cpu_to_le32(nsid);
return nvme_submit_sync_cmd(dev->admin_q, &c, ns_list, 0x1000);
}
@@ -900,9 +900,9 @@
return -ENODEV;
}
- if (ns->ctrl->vs >= NVME_VS(1, 1))
+ if (ns->ctrl->vs >= NVME_VS(1, 1, 0))
memcpy(ns->eui, (*id)->eui64, sizeof(ns->eui));
- if (ns->ctrl->vs >= NVME_VS(1, 2))
+ if (ns->ctrl->vs >= NVME_VS(1, 2, 0))
memcpy(ns->uuid, (*id)->nguid, sizeof(ns->uuid));
return 0;
@@ -1086,6 +1086,8 @@
int ret;
while ((ret = ctrl->ops->reg_read32(ctrl, NVME_REG_CSTS, &csts)) == 0) {
+ if (csts == ~0)
+ return -ENODEV;
if ((csts & NVME_CSTS_RDY) == bit)
break;
@@ -1240,7 +1242,7 @@
}
page_shift = NVME_CAP_MPSMIN(cap) + 12;
- if (ctrl->vs >= NVME_VS(1, 1))
+ if (ctrl->vs >= NVME_VS(1, 1, 0))
ctrl->subsystem = NVME_CAP_NSSRC(cap);
ret = nvme_identify_ctrl(ctrl, &id);
@@ -1840,7 +1842,7 @@
return;
nn = le32_to_cpu(id->nn);
- if (ctrl->vs >= NVME_VS(1, 1) &&
+ if (ctrl->vs >= NVME_VS(1, 1, 0) &&
!(ctrl->quirks & NVME_QUIRK_IDENTIFY_CNS)) {
if (!nvme_scan_ns_list(ctrl, nn))
goto done;
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 0fc99f0..0248d0e 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -99,6 +99,7 @@
dma_addr_t cmb_dma_addr;
u64 cmb_size;
u32 cmbsz;
+ u32 cmbloc;
struct nvme_ctrl ctrl;
struct completion ioq_wait;
};
@@ -893,7 +894,7 @@
"I/O %d QID %d timeout, reset controller\n",
req->tag, nvmeq->qid);
nvme_dev_disable(dev, false);
- queue_work(nvme_workq, &dev->reset_work);
+ nvme_reset(dev);
/*
* Mark the request as handled, since the inline shutdown
@@ -1214,7 +1215,7 @@
u64 cap = lo_hi_readq(dev->bar + NVME_REG_CAP);
struct nvme_queue *nvmeq;
- dev->subsystem = readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 1) ?
+ dev->subsystem = readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 1, 0) ?
NVME_CAP_NSSRC(cap) : 0;
if (dev->subsystem &&
@@ -1291,7 +1292,7 @@
/* Skip controllers under certain specific conditions. */
if (nvme_should_reset(dev, csts)) {
- if (queue_work(nvme_workq, &dev->reset_work))
+ if (!nvme_reset(dev))
dev_warn(dev->dev,
"Failed status: 0x%x, reset controller.\n",
csts);
@@ -1331,28 +1332,37 @@
return ret >= 0 ? 0 : ret;
}
+static ssize_t nvme_cmb_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct nvme_dev *ndev = to_nvme_dev(dev_get_drvdata(dev));
+
+ return snprintf(buf, PAGE_SIZE, "cmbloc : x%08x\ncmbsz : x%08x\n",
+ ndev->cmbloc, ndev->cmbsz);
+}
+static DEVICE_ATTR(cmb, S_IRUGO, nvme_cmb_show, NULL);
+
static void __iomem *nvme_map_cmb(struct nvme_dev *dev)
{
u64 szu, size, offset;
- u32 cmbloc;
resource_size_t bar_size;
struct pci_dev *pdev = to_pci_dev(dev->dev);
void __iomem *cmb;
dma_addr_t dma_addr;
- if (!use_cmb_sqes)
- return NULL;
-
dev->cmbsz = readl(dev->bar + NVME_REG_CMBSZ);
if (!(NVME_CMB_SZ(dev->cmbsz)))
return NULL;
+ dev->cmbloc = readl(dev->bar + NVME_REG_CMBLOC);
- cmbloc = readl(dev->bar + NVME_REG_CMBLOC);
+ if (!use_cmb_sqes)
+ return NULL;
szu = (u64)1 << (12 + 4 * NVME_CMB_SZU(dev->cmbsz));
size = szu * NVME_CMB_SZ(dev->cmbsz);
- offset = szu * NVME_CMB_OFST(cmbloc);
- bar_size = pci_resource_len(pdev, NVME_CMB_BIR(cmbloc));
+ offset = szu * NVME_CMB_OFST(dev->cmbloc);
+ bar_size = pci_resource_len(pdev, NVME_CMB_BIR(dev->cmbloc));
if (offset > bar_size)
return NULL;
@@ -1365,7 +1375,7 @@
if (size > bar_size - offset)
size = bar_size - offset;
- dma_addr = pci_resource_start(pdev, NVME_CMB_BIR(cmbloc)) + offset;
+ dma_addr = pci_resource_start(pdev, NVME_CMB_BIR(dev->cmbloc)) + offset;
cmb = ioremap_wc(dma_addr, size);
if (!cmb)
return NULL;
@@ -1511,9 +1521,9 @@
return 0;
}
-static void nvme_disable_io_queues(struct nvme_dev *dev)
+static void nvme_disable_io_queues(struct nvme_dev *dev, int queues)
{
- int pass, queues = dev->online_queues - 1;
+ int pass;
unsigned long timeout;
u8 opcode = nvme_admin_delete_sq;
@@ -1616,9 +1626,25 @@
dev->q_depth);
}
- if (readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 2))
+ /*
+ * CMBs can currently only exist on >=1.2 PCIe devices. We only
+ * populate sysfs if a CMB is implemented. Note that we add the
+ * CMB attribute to the nvme_ctrl kobj which removes the need to remove
+ * it on exit. Since nvme_dev_attrs_group has no name we can pass
+ * NULL as final argument to sysfs_add_file_to_group.
+ */
+
+ if (readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 2, 0)) {
dev->cmb = nvme_map_cmb(dev);
+ if (dev->cmbsz) {
+ if (sysfs_add_file_to_group(&dev->ctrl.device->kobj,
+ &dev_attr_cmb.attr, NULL))
+ dev_warn(dev->dev,
+ "failed to add sysfs attribute for CMB\n");
+ }
+ }
+
pci_enable_pcie_error_reporting(pdev);
pci_save_state(pdev);
return 0;
@@ -1649,7 +1675,7 @@
static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
{
- int i;
+ int i, queues;
u32 csts = -1;
del_timer_sync(&dev->watchdog_timer);
@@ -1660,6 +1686,7 @@
csts = readl(dev->bar + NVME_REG_CSTS);
}
+ queues = dev->online_queues - 1;
for (i = dev->queue_count - 1; i > 0; i--)
nvme_suspend_queue(dev->queues[i]);
@@ -1671,7 +1698,7 @@
if (dev->queue_count)
nvme_suspend_queue(dev->queues[0]);
} else {
- nvme_disable_io_queues(dev);
+ nvme_disable_io_queues(dev, queues);
nvme_disable_admin_queue(dev, shutdown);
}
nvme_pci_disable(dev);
@@ -1818,11 +1845,10 @@
{
if (!dev->ctrl.admin_q || blk_queue_dying(dev->ctrl.admin_q))
return -ENODEV;
-
+ if (work_busy(&dev->reset_work))
+ return -ENODEV;
if (!queue_work(nvme_workq, &dev->reset_work))
return -EBUSY;
-
- flush_work(&dev->reset_work);
return 0;
}
@@ -1846,7 +1872,12 @@
static int nvme_pci_reset_ctrl(struct nvme_ctrl *ctrl)
{
- return nvme_reset(to_nvme_dev(ctrl));
+ struct nvme_dev *dev = to_nvme_dev(ctrl);
+ int ret = nvme_reset(dev);
+
+ if (!ret)
+ flush_work(&dev->reset_work);
+ return ret;
}
static const struct nvme_ctrl_ops nvme_pci_ctrl_ops = {
@@ -1940,7 +1971,7 @@
if (prepare)
nvme_dev_disable(dev, false);
else
- queue_work(nvme_workq, &dev->reset_work);
+ nvme_reset(dev);
}
static void nvme_shutdown(struct pci_dev *pdev)
@@ -2009,7 +2040,7 @@
struct pci_dev *pdev = to_pci_dev(dev);
struct nvme_dev *ndev = pci_get_drvdata(pdev);
- queue_work(nvme_workq, &ndev->reset_work);
+ nvme_reset(ndev);
return 0;
}
#endif
@@ -2048,7 +2079,7 @@
dev_info(dev->ctrl.device, "restart after slot reset\n");
pci_restore_state(pdev);
- queue_work(nvme_workq, &dev->reset_work);
+ nvme_reset(dev);
return PCI_ERS_RESULT_RECOVERED;
}
diff --git a/drivers/nvme/host/scsi.c b/drivers/nvme/host/scsi.c
index c2a0a1c7..3eaa4d2 100644
--- a/drivers/nvme/host/scsi.c
+++ b/drivers/nvme/host/scsi.c
@@ -606,7 +606,7 @@
eui = id_ns->eui64;
len = sizeof(id_ns->eui64);
- if (ns->ctrl->vs >= NVME_VS(1, 2)) {
+ if (ns->ctrl->vs >= NVME_VS(1, 2, 0)) {
if (bitmap_empty(eui, len * 8)) {
eui = id_ns->nguid;
len = sizeof(id_ns->nguid);
@@ -679,7 +679,7 @@
{
int res;
- if (ns->ctrl->vs >= NVME_VS(1, 1)) {
+ if (ns->ctrl->vs >= NVME_VS(1, 1, 0)) {
res = nvme_fill_device_id_eui64(ns, hdr, resp, alloc_len);
if (res != -EOPNOTSUPP)
return res;
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index 7ab9c93..6fe4c48 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -199,7 +199,7 @@
*/
/* we support multiple ports and multiples hosts: */
- id->mic = (1 << 0) | (1 << 1);
+ id->cmic = (1 << 0) | (1 << 1);
/* no limit on data transfer sizes for now */
id->mdts = 0;
@@ -511,13 +511,13 @@
case nvme_admin_identify:
req->data_len = 4096;
switch (le32_to_cpu(cmd->identify.cns)) {
- case 0x00:
+ case NVME_ID_CNS_NS:
req->execute = nvmet_execute_identify_ns;
return 0;
- case 0x01:
+ case NVME_ID_CNS_CTRL:
req->execute = nvmet_execute_identify_ctrl;
return 0;
- case 0x02:
+ case NVME_ID_CNS_NS_ACTIVE_LIST:
req->execute = nvmet_execute_identify_nslist;
return 0;
}
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 6559d5a..b4cacb6 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -882,7 +882,7 @@
if (!subsys)
return NULL;
- subsys->ver = (1 << 16) | (2 << 8) | 1; /* NVMe 1.2.1 */
+ subsys->ver = NVME_VS(1, 2, 1); /* NVMe 1.2.1 */
switch (type) {
case NVME_NQN_NVME:
diff --git a/drivers/nvme/target/discovery.c b/drivers/nvme/target/discovery.c
index 6f65646..12f39ee 100644
--- a/drivers/nvme/target/discovery.c
+++ b/drivers/nvme/target/discovery.c
@@ -54,7 +54,7 @@
/* we support only dynamic controllers */
e->cntlid = cpu_to_le16(NVME_CNTLID_DYNAMIC);
e->asqsz = cpu_to_le16(NVMF_AQ_DEPTH);
- e->nqntype = type;
+ e->subtype = type;
memcpy(e->trsvcid, port->disc_addr.trsvcid, NVMF_TRSVCID_SIZE);
memcpy(e->traddr, port->disc_addr.traddr, NVMF_TRADDR_SIZE);
memcpy(e->tsas.common, port->disc_addr.tsas.common, NVMF_TSAS_SIZE);
@@ -187,7 +187,7 @@
case nvme_admin_identify:
req->data_len = 4096;
switch (le32_to_cpu(cmd->identify.cns)) {
- case 0x01:
+ case NVME_ID_CNS_CTRL:
req->execute =
nvmet_execute_identify_disc_ctrl;
return 0;
diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c
index 2cb7315..6537079 100644
--- a/drivers/pci/host/pci-layerscape.c
+++ b/drivers/pci/host/pci-layerscape.c
@@ -247,6 +247,7 @@
pp = &pcie->pp;
pp->dev = dev;
+ pcie->drvdata = match->data;
pp->ops = pcie->drvdata->ops;
dbi_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
@@ -256,7 +257,6 @@
return PTR_ERR(pcie->pp.dbi_base);
}
- pcie->drvdata = match->data;
pcie->lut = pcie->pp.dbi_base + pcie->drvdata->lut_offset;
if (!ls_pcie_is_bridge(pcie))
diff --git a/drivers/pci/host/pcie-designware-plat.c b/drivers/pci/host/pcie-designware-plat.c
index 537f58a..8df6312 100644
--- a/drivers/pci/host/pcie-designware-plat.c
+++ b/drivers/pci/host/pcie-designware-plat.c
@@ -3,7 +3,7 @@
*
* Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
*
- * Authors: Joao Pinto <jpinto@synopsys.com>
+ * Authors: Joao Pinto <jpmpinto@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index c2ac764..a8ac4bc 100644
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -1011,7 +1011,7 @@
rc = acpi_dev_get_resources(adev, &resource_list,
acpi_pmu_dev_add_resource, &res);
acpi_dev_free_resource_list(&resource_list);
- if (rc < 0 || IS_ERR(&res)) {
+ if (rc < 0) {
dev_err(dev, "PMU type %d: No resource address found\n", type);
goto err;
}
diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
index e1ab864..c8c72e8 100644
--- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
+++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
@@ -151,21 +151,21 @@
#define GPID2_DESC SIG_DESC_SET(SCU8C, 9)
-#define D20 26
+#define F20 26
SIG_EXPR_LIST_DECL_SINGLE(SD2DAT0, SD2, SD2_DESC);
SIG_EXPR_DECL(GPID2IN, GPID2, GPID2_DESC);
SIG_EXPR_DECL(GPID2IN, GPID, GPID_DESC);
SIG_EXPR_LIST_DECL_DUAL(GPID2IN, GPID2, GPID);
-MS_PIN_DECL(D20, GPIOD2, SD2DAT0, GPID2IN);
+MS_PIN_DECL(F20, GPIOD2, SD2DAT0, GPID2IN);
-#define D21 27
+#define D20 27
SIG_EXPR_LIST_DECL_SINGLE(SD2DAT1, SD2, SD2_DESC);
SIG_EXPR_DECL(GPID2OUT, GPID2, GPID2_DESC);
SIG_EXPR_DECL(GPID2OUT, GPID, GPID_DESC);
SIG_EXPR_LIST_DECL_DUAL(GPID2OUT, GPID2, GPID);
-MS_PIN_DECL(D21, GPIOD3, SD2DAT1, GPID2OUT);
+MS_PIN_DECL(D20, GPIOD3, SD2DAT1, GPID2OUT);
-FUNC_GROUP_DECL(GPID2, D20, D21);
+FUNC_GROUP_DECL(GPID2, F20, D20);
#define GPIE_DESC SIG_DESC_SET(HW_STRAP1, 21)
#define GPIE0_DESC SIG_DESC_SET(SCU8C, 12)
@@ -182,28 +182,88 @@
SIG_EXPR_DECL(GPIE0OUT, GPIE0, GPIE0_DESC);
SIG_EXPR_DECL(GPIE0OUT, GPIE, GPIE_DESC);
SIG_EXPR_LIST_DECL_DUAL(GPIE0OUT, GPIE0, GPIE);
-MS_PIN_DECL(C20, GPIE0, NDCD3, GPIE0OUT);
+MS_PIN_DECL(C20, GPIOE1, NDCD3, GPIE0OUT);
FUNC_GROUP_DECL(GPIE0, B20, C20);
-#define SPI1_DESC SIG_DESC_SET(HW_STRAP1, 13)
+#define SPI1_DESC { HW_STRAP1, GENMASK(13, 12), 1, 0 }
+#define SPI1DEBUG_DESC { HW_STRAP1, GENMASK(13, 12), 2, 0 }
+#define SPI1PASSTHRU_DESC { HW_STRAP1, GENMASK(13, 12), 3, 0 }
+
#define C18 64
-SIG_EXPR_LIST_DECL_SINGLE(SYSCS, SPI1, COND1, SPI1_DESC);
+SIG_EXPR_DECL(SYSCS, SPI1DEBUG, COND1, SPI1DEBUG_DESC);
+SIG_EXPR_DECL(SYSCS, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC);
+SIG_EXPR_LIST_DECL_DUAL(SYSCS, SPI1DEBUG, SPI1PASSTHRU);
SS_PIN_DECL(C18, GPIOI0, SYSCS);
#define E15 65
-SIG_EXPR_LIST_DECL_SINGLE(SYSCK, SPI1, COND1, SPI1_DESC);
+SIG_EXPR_DECL(SYSCK, SPI1DEBUG, COND1, SPI1DEBUG_DESC);
+SIG_EXPR_DECL(SYSCK, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC);
+SIG_EXPR_LIST_DECL_DUAL(SYSCK, SPI1DEBUG, SPI1PASSTHRU);
SS_PIN_DECL(E15, GPIOI1, SYSCK);
-#define A14 66
-SIG_EXPR_LIST_DECL_SINGLE(SYSMOSI, SPI1, COND1, SPI1_DESC);
-SS_PIN_DECL(A14, GPIOI2, SYSMOSI);
+#define B16 66
+SIG_EXPR_DECL(SYSMOSI, SPI1DEBUG, COND1, SPI1DEBUG_DESC);
+SIG_EXPR_DECL(SYSMOSI, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC);
+SIG_EXPR_LIST_DECL_DUAL(SYSMOSI, SPI1DEBUG, SPI1PASSTHRU);
+SS_PIN_DECL(B16, GPIOI2, SYSMOSI);
#define C16 67
-SIG_EXPR_LIST_DECL_SINGLE(SYSMISO, SPI1, COND1, SPI1_DESC);
+SIG_EXPR_DECL(SYSMISO, SPI1DEBUG, COND1, SPI1DEBUG_DESC);
+SIG_EXPR_DECL(SYSMISO, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC);
+SIG_EXPR_LIST_DECL_DUAL(SYSMISO, SPI1DEBUG, SPI1PASSTHRU);
SS_PIN_DECL(C16, GPIOI3, SYSMISO);
-FUNC_GROUP_DECL(SPI1, C18, E15, A14, C16);
+#define VB_DESC SIG_DESC_SET(HW_STRAP1, 5)
+
+#define B15 68
+SIG_EXPR_DECL(SPI1CS0, SPI1, COND1, SPI1_DESC);
+SIG_EXPR_DECL(SPI1CS0, SPI1DEBUG, COND1, SPI1DEBUG_DESC);
+SIG_EXPR_DECL(SPI1CS0, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC);
+SIG_EXPR_LIST_DECL(SPI1CS0, SIG_EXPR_PTR(SPI1CS0, SPI1),
+ SIG_EXPR_PTR(SPI1CS0, SPI1DEBUG),
+ SIG_EXPR_PTR(SPI1CS0, SPI1PASSTHRU));
+SIG_EXPR_LIST_DECL_SINGLE(VBCS, VGABIOSROM, COND1, VB_DESC);
+MS_PIN_DECL(B15, GPIOI4, SPI1CS0, VBCS);
+
+#define C15 69
+SIG_EXPR_DECL(SPI1CK, SPI1, COND1, SPI1_DESC);
+SIG_EXPR_DECL(SPI1CK, SPI1DEBUG, COND1, SPI1DEBUG_DESC);
+SIG_EXPR_DECL(SPI1CK, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC);
+SIG_EXPR_LIST_DECL(SPI1CK, SIG_EXPR_PTR(SPI1CK, SPI1),
+ SIG_EXPR_PTR(SPI1CK, SPI1DEBUG),
+ SIG_EXPR_PTR(SPI1CK, SPI1PASSTHRU));
+SIG_EXPR_LIST_DECL_SINGLE(VBCK, VGABIOSROM, COND1, VB_DESC);
+MS_PIN_DECL(C15, GPIOI5, SPI1CK, VBCK);
+
+#define A14 70
+SIG_EXPR_DECL(SPI1MOSI, SPI1, COND1, SPI1_DESC);
+SIG_EXPR_DECL(SPI1MOSI, SPI1DEBUG, COND1, SPI1DEBUG_DESC);
+SIG_EXPR_DECL(SPI1MOSI, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC);
+SIG_EXPR_LIST_DECL(SPI1MOSI, SIG_EXPR_PTR(SPI1MOSI, SPI1),
+ SIG_EXPR_PTR(SPI1MOSI, SPI1DEBUG),
+ SIG_EXPR_PTR(SPI1MOSI, SPI1PASSTHRU));
+SIG_EXPR_LIST_DECL_SINGLE(VBMOSI, VGABIOSROM, COND1, VB_DESC);
+MS_PIN_DECL(A14, GPIOI6, SPI1MOSI, VBMOSI);
+
+#define A15 71
+SIG_EXPR_DECL(SPI1MISO, SPI1, COND1, SPI1_DESC);
+SIG_EXPR_DECL(SPI1MISO, SPI1DEBUG, COND1, SPI1DEBUG_DESC);
+SIG_EXPR_DECL(SPI1MISO, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC);
+SIG_EXPR_LIST_DECL(SPI1MISO, SIG_EXPR_PTR(SPI1MISO, SPI1),
+ SIG_EXPR_PTR(SPI1MISO, SPI1DEBUG),
+ SIG_EXPR_PTR(SPI1MISO, SPI1PASSTHRU));
+SIG_EXPR_LIST_DECL_SINGLE(VBMISO, VGABIOSROM, COND1, VB_DESC);
+MS_PIN_DECL(A15, GPIOI7, SPI1MISO, VBMISO);
+
+FUNC_GROUP_DECL(SPI1, B15, C15, A14, A15);
+FUNC_GROUP_DECL(SPI1DEBUG, C18, E15, B16, C16, B15, C15, A14, A15);
+FUNC_GROUP_DECL(SPI1PASSTHRU, C18, E15, B16, C16, B15, C15, A14, A15);
+FUNC_GROUP_DECL(VGABIOSROM, B15, C15, A14, A15);
+
+#define R2 72
+SIG_EXPR_LIST_DECL_SINGLE(SGPMCK, SGPM, SIG_DESC_SET(SCU84, 8));
+SS_PIN_DECL(R2, GPIOJ0, SGPMCK);
#define L2 73
SIG_EXPR_LIST_DECL_SINGLE(SGPMLD, SGPM, SIG_DESC_SET(SCU84, 9));
@@ -580,6 +640,7 @@
ASPEED_PINCTRL_PIN(A12),
ASPEED_PINCTRL_PIN(A13),
ASPEED_PINCTRL_PIN(A14),
+ ASPEED_PINCTRL_PIN(A15),
ASPEED_PINCTRL_PIN(A2),
ASPEED_PINCTRL_PIN(A3),
ASPEED_PINCTRL_PIN(A4),
@@ -592,6 +653,8 @@
ASPEED_PINCTRL_PIN(B12),
ASPEED_PINCTRL_PIN(B13),
ASPEED_PINCTRL_PIN(B14),
+ ASPEED_PINCTRL_PIN(B15),
+ ASPEED_PINCTRL_PIN(B16),
ASPEED_PINCTRL_PIN(B2),
ASPEED_PINCTRL_PIN(B20),
ASPEED_PINCTRL_PIN(B3),
@@ -603,6 +666,7 @@
ASPEED_PINCTRL_PIN(C12),
ASPEED_PINCTRL_PIN(C13),
ASPEED_PINCTRL_PIN(C14),
+ ASPEED_PINCTRL_PIN(C15),
ASPEED_PINCTRL_PIN(C16),
ASPEED_PINCTRL_PIN(C18),
ASPEED_PINCTRL_PIN(C2),
@@ -614,7 +678,6 @@
ASPEED_PINCTRL_PIN(D10),
ASPEED_PINCTRL_PIN(D2),
ASPEED_PINCTRL_PIN(D20),
- ASPEED_PINCTRL_PIN(D21),
ASPEED_PINCTRL_PIN(D4),
ASPEED_PINCTRL_PIN(D5),
ASPEED_PINCTRL_PIN(D6),
@@ -630,6 +693,7 @@
ASPEED_PINCTRL_PIN(E7),
ASPEED_PINCTRL_PIN(E9),
ASPEED_PINCTRL_PIN(F19),
+ ASPEED_PINCTRL_PIN(F20),
ASPEED_PINCTRL_PIN(F9),
ASPEED_PINCTRL_PIN(H20),
ASPEED_PINCTRL_PIN(L1),
@@ -691,11 +755,14 @@
ASPEED_PINCTRL_GROUP(RMII2),
ASPEED_PINCTRL_GROUP(SD1),
ASPEED_PINCTRL_GROUP(SPI1),
+ ASPEED_PINCTRL_GROUP(SPI1DEBUG),
+ ASPEED_PINCTRL_GROUP(SPI1PASSTHRU),
ASPEED_PINCTRL_GROUP(TIMER4),
ASPEED_PINCTRL_GROUP(TIMER5),
ASPEED_PINCTRL_GROUP(TIMER6),
ASPEED_PINCTRL_GROUP(TIMER7),
ASPEED_PINCTRL_GROUP(TIMER8),
+ ASPEED_PINCTRL_GROUP(VGABIOSROM),
};
static const struct aspeed_pin_function aspeed_g5_functions[] = {
@@ -733,11 +800,14 @@
ASPEED_PINCTRL_FUNC(RMII2),
ASPEED_PINCTRL_FUNC(SD1),
ASPEED_PINCTRL_FUNC(SPI1),
+ ASPEED_PINCTRL_FUNC(SPI1DEBUG),
+ ASPEED_PINCTRL_FUNC(SPI1PASSTHRU),
ASPEED_PINCTRL_FUNC(TIMER4),
ASPEED_PINCTRL_FUNC(TIMER5),
ASPEED_PINCTRL_FUNC(TIMER6),
ASPEED_PINCTRL_FUNC(TIMER7),
ASPEED_PINCTRL_FUNC(TIMER8),
+ ASPEED_PINCTRL_FUNC(VGABIOSROM),
};
static struct aspeed_pinctrl_data aspeed_g5_pinctrl_data = {
diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed.c b/drivers/pinctrl/aspeed/pinctrl-aspeed.c
index 0391f9f..49aeba9 100644
--- a/drivers/pinctrl/aspeed/pinctrl-aspeed.c
+++ b/drivers/pinctrl/aspeed/pinctrl-aspeed.c
@@ -166,13 +166,9 @@
bool enable, struct regmap *map)
{
int i;
- bool ret;
-
- ret = aspeed_sig_expr_eval(expr, enable, map);
- if (ret)
- return ret;
for (i = 0; i < expr->ndescs; i++) {
+ bool ret;
const struct aspeed_sig_desc *desc = &expr->descs[i];
u32 pattern = enable ? desc->enable : desc->disable;
@@ -199,12 +195,18 @@
static bool aspeed_sig_expr_enable(const struct aspeed_sig_expr *expr,
struct regmap *map)
{
+ if (aspeed_sig_expr_eval(expr, true, map))
+ return true;
+
return aspeed_sig_expr_set(expr, true, map);
}
static bool aspeed_sig_expr_disable(const struct aspeed_sig_expr *expr,
struct regmap *map)
{
+ if (!aspeed_sig_expr_eval(expr, true, map))
+ return true;
+
return aspeed_sig_expr_set(expr, false, map);
}
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index d22a9fe..71bbeb9 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -1808,6 +1808,8 @@
return PTR_ERR(vg->pctl_dev);
}
+ raw_spin_lock_init(&vg->lock);
+
ret = byt_gpio_probe(vg);
if (ret) {
pinctrl_unregister(vg->pctl_dev);
@@ -1815,7 +1817,6 @@
}
platform_set_drvdata(pdev, vg);
- raw_spin_lock_init(&vg->lock);
pm_runtime_enable(&pdev->dev);
return 0;
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 63387a4..0144376 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -19,6 +19,7 @@
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinconf-generic.h>
+#include "../core.h"
#include "pinctrl-intel.h"
/* Offset from regs */
@@ -1056,6 +1057,26 @@
EXPORT_SYMBOL_GPL(intel_pinctrl_remove);
#ifdef CONFIG_PM_SLEEP
+static bool intel_pinctrl_should_save(struct intel_pinctrl *pctrl, unsigned pin)
+{
+ const struct pin_desc *pd = pin_desc_get(pctrl->pctldev, pin);
+
+ if (!pd || !intel_pad_usable(pctrl, pin))
+ return false;
+
+ /*
+ * Only restore the pin if it is actually in use by the kernel (or
+ * by userspace). It is possible that some pins are used by the
+ * BIOS during resume and those are not always locked down so leave
+ * them alone.
+ */
+ if (pd->mux_owner || pd->gpio_owner ||
+ gpiochip_line_is_irq(&pctrl->chip, pin))
+ return true;
+
+ return false;
+}
+
int intel_pinctrl_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
@@ -1069,7 +1090,7 @@
const struct pinctrl_pin_desc *desc = &pctrl->soc->pins[i];
u32 val;
- if (!intel_pad_usable(pctrl, desc->number))
+ if (!intel_pinctrl_should_save(pctrl, desc->number))
continue;
val = readl(intel_get_padcfg(pctrl, desc->number, PADCFG0));
@@ -1130,7 +1151,7 @@
void __iomem *padcfg;
u32 val;
- if (!intel_pad_usable(pctrl, desc->number))
+ if (!intel_pinctrl_should_save(pctrl, desc->number))
continue;
padcfg = intel_get_padcfg(pctrl, desc->number, PADCFG0);
diff --git a/drivers/platform/goldfish/goldfish_pipe.c b/drivers/platform/goldfish/goldfish_pipe.c
index 07462d7..1aba2c7 100644
--- a/drivers/platform/goldfish/goldfish_pipe.c
+++ b/drivers/platform/goldfish/goldfish_pipe.c
@@ -309,7 +309,8 @@
* much memory to the process.
*/
down_read(¤t->mm->mmap_sem);
- ret = get_user_pages(address, 1, !is_write, 0, &page, NULL);
+ ret = get_user_pages(address, 1, is_write ? 0 : FOLL_WRITE,
+ &page, NULL);
up_read(¤t->mm->mmap_sem);
if (ret < 0)
break;
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 81b8dcc..b8a21d7 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -576,6 +576,7 @@
config ASUS_NB_WMI
tristate "Asus Notebook WMI Driver"
depends on ASUS_WMI
+ depends on SERIO_I8042 || SERIO_I8042 = n
---help---
This is a driver for newer Asus notebooks. It adds extra features
like wireless radio and bluetooth control, leds, hotkeys, backlight...
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index d1a091b..a232394 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -933,6 +933,13 @@
DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 900"),
},
},
+ {
+ .ident = "Lenovo YOGA 910-13IKB",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 910-13IKB"),
+ },
+ },
{}
};
diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c
index 436dfe8..9013a58 100644
--- a/drivers/rapidio/devices/rio_mport_cdev.c
+++ b/drivers/rapidio/devices/rio_mport_cdev.c
@@ -892,7 +892,8 @@
down_read(¤t->mm->mmap_sem);
pinned = get_user_pages(
(unsigned long)xfer->loc_addr & PAGE_MASK,
- nr_pages, dir == DMA_FROM_DEVICE, 0,
+ nr_pages,
+ dir == DMA_FROM_DEVICE ? FOLL_WRITE : 0,
page_list, NULL);
up_read(¤t->mm->mmap_sem);
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 637cf89..5810019 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -384,7 +384,7 @@
/* if (len > rec_len):
* dump data up to cap_len ignoring small duplicate in rec->payload
*/
- spin_lock_irqsave(&dbf->pay_lock, flags);
+ spin_lock(&dbf->pay_lock);
memset(payload, 0, sizeof(*payload));
memcpy(payload->area, paytag, ZFCP_DBF_TAG_LEN);
payload->fsf_req_id = req_id;
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index a8762a3..5324741 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -2586,7 +2586,6 @@
struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
u32 fd_ioasc;
- char *envp[] = { "ASYNC_ERR_LOG=1", NULL };
if (ioa_cfg->sis64)
fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
@@ -2607,8 +2606,8 @@
}
list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q);
+ schedule_work(&ioa_cfg->work_q);
hostrcb = ipr_get_free_hostrcb(ioa_cfg);
- kobject_uevent_env(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE, envp);
ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
}
diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c
index 54d446c..b8d3b97 100644
--- a/drivers/scsi/scsi_dh.c
+++ b/drivers/scsi/scsi_dh.c
@@ -36,9 +36,9 @@
};
static const struct scsi_dh_blist scsi_dh_blist[] = {
- {"DGC", "RAID", "clariion" },
- {"DGC", "DISK", "clariion" },
- {"DGC", "VRAID", "clariion" },
+ {"DGC", "RAID", "emc" },
+ {"DGC", "DISK", "emc" },
+ {"DGC", "VRAID", "emc" },
{"COMPAQ", "MSA1000 VOLUME", "hp_sw" },
{"COMPAQ", "HSV110", "hp_sw" },
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 212e98d..6f7128f 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1307,7 +1307,6 @@
static int scsi_report_lun_scan(struct scsi_target *starget, int bflags,
enum scsi_scan_mode rescan)
{
- char devname[64];
unsigned char scsi_cmd[MAX_COMMAND_SIZE];
unsigned int length;
u64 lun;
@@ -1349,9 +1348,6 @@
}
}
- sprintf(devname, "host %d channel %d id %d",
- shost->host_no, sdev->channel, sdev->id);
-
/*
* Allocate enough to hold the header (the same size as one scsi_lun)
* plus the number of luns we are requesting. 511 was the default
@@ -1470,12 +1466,12 @@
out_err:
kfree(lun_data);
out:
- scsi_device_put(sdev);
if (scsi_device_created(sdev))
/*
* the sdev we used didn't appear in the report luns scan
*/
__scsi_remove_device(sdev);
+ scsi_device_put(sdev);
return ret;
}
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 7af5226..618422e 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4922,9 +4922,8 @@
res = get_user_pages_unlocked(
uaddr,
nr_pages,
- rw == READ,
- 0, /* don't force */
- pages);
+ pages,
+ rw == READ ? FOLL_WRITE : 0); /* don't force */
/* Errors and no page mapped should return here */
if (res < nr_pages)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
index c29040f..1091b9f 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
@@ -423,8 +423,7 @@
actual_pages = get_user_pages(task, task->mm,
(unsigned long)buf & ~(PAGE_SIZE - 1),
num_pages,
- (type == PAGELIST_READ) /*Write */ ,
- 0 /*Force */ ,
+ (type == PAGELIST_READ) ? FOLL_WRITE : 0,
pages,
NULL /*vmas */);
up_read(&task->mm->mmap_sem);
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index e11c0e0..7b6cd4d 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -1477,8 +1477,7 @@
current->mm, /* mm */
(unsigned long)virt_addr, /* start */
num_pages, /* len */
- 0, /* write */
- 0, /* force */
+ 0, /* gup_flags */
pages, /* pages (array of page pointers) */
NULL); /* vmas */
up_read(¤t->mm->mmap_sem);
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index 3b1ca44..a2564ab 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -686,8 +686,8 @@
if (!pages)
return -ENOMEM;
- ret = get_user_pages_unlocked((unsigned long)buf, nr_pages, WRITE,
- 0, pages);
+ ret = get_user_pages_unlocked((unsigned long)buf, nr_pages, pages,
+ FOLL_WRITE);
if (ret < nr_pages) {
nr_pages = ret;
diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c
index 60bdad3..150ce2a 100644
--- a/drivers/virt/fsl_hypervisor.c
+++ b/drivers/virt/fsl_hypervisor.c
@@ -245,8 +245,8 @@
/* Get the physical addresses of the source buffer */
down_read(¤t->mm->mmap_sem);
num_pinned = get_user_pages(param.local_vaddr - lb_offset,
- num_pages, (param.source == -1) ? READ : WRITE,
- 0, pages, NULL);
+ num_pages, (param.source == -1) ? 0 : FOLL_WRITE,
+ pages, NULL);
up_read(¤t->mm->mmap_sem);
if (num_pinned != num_pages) {
diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c
index e473e3b..6d1fbda 100644
--- a/drivers/watchdog/wdat_wdt.c
+++ b/drivers/watchdog/wdat_wdt.c
@@ -499,6 +499,10 @@
ret = wdat_wdt_enable_reboot(wdat);
if (ret)
return ret;
+
+ ret = wdat_wdt_ping(&wdat->wdd);
+ if (ret)
+ return ret;
}
return wdat_wdt_start(&wdat->wdd);
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 7bf0882..18630e8 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1272,7 +1272,8 @@
statret = __ceph_do_getattr(inode, page,
CEPH_STAT_CAP_INLINE_DATA, !!page);
if (statret < 0) {
- __free_page(page);
+ if (page)
+ __free_page(page);
if (statret == -ENODATA) {
BUG_ON(retry_op != READ_INLINE);
goto again;
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index bca1b49..ef4d046 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1511,7 +1511,8 @@
ceph_fill_dirfrag(d_inode(parent), rinfo->dir_dir);
}
- if (ceph_frag_is_leftmost(frag) && req->r_readdir_offset == 2) {
+ if (ceph_frag_is_leftmost(frag) && req->r_readdir_offset == 2 &&
+ !(rinfo->hash_order && req->r_path2)) {
/* note dir version at start of readdir so we can tell
* if any dentries get dropped */
req->r_dir_release_cnt = atomic64_read(&ci->i_release_count);
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index a29ffce..b382e59 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -845,6 +845,8 @@
err = ceph_fs_debugfs_init(fsc);
if (err < 0)
goto fail;
+ } else {
+ root = dget(fsc->sb->s_root);
}
fsc->mount_state = CEPH_MOUNT_MOUNTED;
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 40b7032..febc28f 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -16,7 +16,7 @@
static int __remove_xattr(struct ceph_inode_info *ci,
struct ceph_inode_xattr *xattr);
-const struct xattr_handler ceph_other_xattr_handler;
+static const struct xattr_handler ceph_other_xattr_handler;
/*
* List of handlers for synthetic system.* attributes. Other
@@ -1086,7 +1086,7 @@
return __ceph_setxattr(inode, name, value, size, flags);
}
-const struct xattr_handler ceph_other_xattr_handler = {
+static const struct xattr_handler ceph_other_xattr_handler = {
.prefix = "", /* match any name => handlers called with full name */
.get = ceph_get_xattr_handler,
.set = ceph_set_xattr_handler,
diff --git a/fs/exec.c b/fs/exec.c
index 6fcfb3f..4e497b9 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -191,6 +191,7 @@
{
struct page *page;
int ret;
+ unsigned int gup_flags = FOLL_FORCE;
#ifdef CONFIG_STACK_GROWSUP
if (write) {
@@ -199,12 +200,16 @@
return NULL;
}
#endif
+
+ if (write)
+ gup_flags |= FOLL_WRITE;
+
/*
* We are doing an exec(). 'current' is the process
* doing the exec and bprm->mm is the new process's mm.
*/
- ret = get_user_pages_remote(current, bprm->mm, pos, 1, write,
- 1, &page, NULL);
+ ret = get_user_pages_remote(current, bprm->mm, pos, 1, gup_flags,
+ &page, NULL);
if (ret <= 0)
return NULL;
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index d831e24..41b8b44 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -622,7 +622,7 @@
u32 *bno, bool *new, bool *boundary,
int create)
{
- int err = -EIO;
+ int err;
int offsets[4];
Indirect chain[4];
Indirect *partial;
@@ -639,7 +639,7 @@
depth = ext2_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
if (depth == 0)
- return (err);
+ return -EIO;
partial = ext2_get_branch(inode, depth, offsets, chain, &err);
/* Simplest case - block found, no allocation needed */
@@ -761,7 +761,6 @@
ext2_splice_branch(inode, iblock, partial, indirect_blks, count);
mutex_unlock(&ei->truncate_mutex);
got_it:
- *bno = le32_to_cpu(chain[depth-1].key);
if (count > blocks_to_boundary)
*boundary = true;
err = count;
@@ -772,6 +771,8 @@
brelse(partial->bh);
partial--;
}
+ if (err > 0)
+ *bno = le32_to_cpu(chain[depth-1].key);
return err;
}
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index ad0c745..871c8b3 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -687,6 +687,11 @@
pri_bh = NULL;
root_found:
+ /* We don't support read-write mounts */
+ if (!(s->s_flags & MS_RDONLY)) {
+ error = -EACCES;
+ goto out_freebh;
+ }
if (joliet_level && (pri == NULL || !opt.rock)) {
/* This is the case of Joliet with the norock mount flag.
@@ -1501,9 +1506,6 @@
static struct dentry *isofs_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
- /* We don't support read-write mounts */
- if (!(flags & MS_RDONLY))
- return ERR_PTR(-EACCES);
return mount_bdev(fs_type, flags, dev_name, data, isofs_fill_super);
}
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 2178476..2905479 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -344,9 +344,10 @@
u64 start = hdr->args.offset & (loff_t)PAGE_MASK;
u64 end = (hdr->args.offset + hdr->args.count +
PAGE_SIZE - 1) & (loff_t)PAGE_MASK;
+ u64 lwb = hdr->args.offset + hdr->args.count;
ext_tree_mark_written(bl, start >> SECTOR_SHIFT,
- (end - start) >> SECTOR_SHIFT, end);
+ (end - start) >> SECTOR_SHIFT, lwb);
}
pnfs_ld_write_done(hdr);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index ad917bd7..7897826 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1545,7 +1545,7 @@
struct nfs_client *clp = server->nfs_client;
struct nfs_inode *nfsi = NFS_I(state->inode);
struct nfs_delegation *deleg_cur;
- nfs4_stateid freeme = {0};
+ nfs4_stateid freeme = { };
int ret = 0;
fmode &= (FMODE_READ|FMODE_WRITE);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index c2964d8..8e65446 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -252,7 +252,7 @@
* Inherently racy -- command line shares address space
* with code and data.
*/
- rv = access_remote_vm(mm, arg_end - 1, &c, 1, 0);
+ rv = access_remote_vm(mm, arg_end - 1, &c, 1, FOLL_FORCE);
if (rv <= 0)
goto out_free_page;
@@ -270,7 +270,8 @@
int nr_read;
_count = min3(count, len, PAGE_SIZE);
- nr_read = access_remote_vm(mm, p, page, _count, 0);
+ nr_read = access_remote_vm(mm, p, page, _count,
+ FOLL_FORCE);
if (nr_read < 0)
rv = nr_read;
if (nr_read <= 0)
@@ -305,7 +306,8 @@
bool final;
_count = min3(count, len, PAGE_SIZE);
- nr_read = access_remote_vm(mm, p, page, _count, 0);
+ nr_read = access_remote_vm(mm, p, page, _count,
+ FOLL_FORCE);
if (nr_read < 0)
rv = nr_read;
if (nr_read <= 0)
@@ -354,7 +356,8 @@
bool final;
_count = min3(count, len, PAGE_SIZE);
- nr_read = access_remote_vm(mm, p, page, _count, 0);
+ nr_read = access_remote_vm(mm, p, page, _count,
+ FOLL_FORCE);
if (nr_read < 0)
rv = nr_read;
if (nr_read <= 0)
@@ -832,6 +835,7 @@
unsigned long addr = *ppos;
ssize_t copied;
char *page;
+ unsigned int flags = FOLL_FORCE;
if (!mm)
return 0;
@@ -844,6 +848,9 @@
if (!atomic_inc_not_zero(&mm->mm_users))
goto free;
+ if (write)
+ flags |= FOLL_WRITE;
+
while (count > 0) {
int this_len = min_t(int, count, PAGE_SIZE);
@@ -852,7 +859,7 @@
break;
}
- this_len = access_remote_vm(mm, addr, page, this_len, write);
+ this_len = access_remote_vm(mm, addr, page, this_len, flags);
if (!this_len) {
if (!copied)
copied = -EIO;
@@ -965,7 +972,7 @@
this_len = min(max_len, this_len);
retval = access_remote_vm(mm, (env_start + src),
- page, this_len, 0);
+ page, this_len, FOLL_FORCE);
if (retval <= 0) {
ret = retval;
diff --git a/include/acpi/pcc.h b/include/acpi/pcc.h
index 17a940a..8caa79c 100644
--- a/include/acpi/pcc.h
+++ b/include/acpi/pcc.h
@@ -21,7 +21,7 @@
static inline struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
int subspace_id)
{
- return NULL;
+ return ERR_PTR(-ENODEV);
}
static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { }
#endif
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 5fa55fc..32dc0cbd 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -677,10 +677,10 @@
if (best == table - 1)
return pos - table;
- return best - pos;
+ return best - table;
}
- return best - pos;
+ return best - table;
}
/* Works only on sorted freq-tables */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index e9caec6..ffbd729 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1266,9 +1266,10 @@
}
#endif
-extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
+extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len,
+ unsigned int gup_flags);
extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
- void *buf, int len, int write);
+ void *buf, int len, unsigned int gup_flags);
long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
@@ -1276,19 +1277,18 @@
struct vm_area_struct **vmas, int *nonblocking);
long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
+ unsigned int gup_flags, struct page **pages,
struct vm_area_struct **vmas);
long get_user_pages(unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
+ unsigned int gup_flags, struct page **pages,
struct vm_area_struct **vmas);
long get_user_pages_locked(unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages, int *locked);
+ unsigned int gup_flags, struct page **pages, int *locked);
long __get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
- unsigned int gup_flags);
+ struct page **pages, unsigned int gup_flags);
long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages);
+ struct page **pages, unsigned int gup_flags);
int get_user_pages_fast(unsigned long start, int nr_pages, int write,
struct page **pages);
@@ -1306,7 +1306,7 @@
struct frame_vector *frame_vector_create(unsigned int nr_frames);
void frame_vector_destroy(struct frame_vector *vec);
int get_vaddr_frames(unsigned long start, unsigned int nr_pfns,
- bool write, bool force, struct frame_vector *vec);
+ unsigned int gup_flags, struct frame_vector *vec);
void put_vaddr_frames(struct frame_vector *vec);
int frame_vector_to_pages(struct frame_vector *vec);
void frame_vector_to_pfns(struct frame_vector *vec);
@@ -2232,6 +2232,7 @@
#define FOLL_TRIED 0x800 /* a retry, previous pass started an IO */
#define FOLL_MLOCK 0x1000 /* lock present pages */
#define FOLL_REMOTE 0x2000 /* we are working on non-current tsk/mm */
+#define FOLL_COW 0x4000 /* internal GUP flag */
typedef int (*pte_fn_t)(pte_t *pte, pgtable_t token, unsigned long addr,
void *data);
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 7676557..fc3c242 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -16,7 +16,6 @@
#define _LINUX_NVME_H
#include <linux/types.h>
-#include <linux/uuid.h>
/* NQN names in commands fields specified one size */
#define NVMF_NQN_FIELD_LEN 256
@@ -182,7 +181,7 @@
char fr[8];
__u8 rab;
__u8 ieee[3];
- __u8 mic;
+ __u8 cmic;
__u8 mdts;
__le16 cntlid;
__le32 ver;
@@ -202,7 +201,13 @@
__u8 apsta;
__le16 wctemp;
__le16 cctemp;
- __u8 rsvd270[50];
+ __le16 mtfa;
+ __le32 hmpre;
+ __le32 hmmin;
+ __u8 tnvmcap[16];
+ __u8 unvmcap[16];
+ __le32 rpmbs;
+ __u8 rsvd316[4];
__le16 kas;
__u8 rsvd322[190];
__u8 sqes;
@@ -267,7 +272,7 @@
__le16 nabo;
__le16 nabspf;
__u16 rsvd46;
- __le64 nvmcap[2];
+ __u8 nvmcap[16];
__u8 rsvd64[40];
__u8 nguid[16];
__u8 eui64[8];
@@ -277,6 +282,16 @@
};
enum {
+ NVME_ID_CNS_NS = 0x00,
+ NVME_ID_CNS_CTRL = 0x01,
+ NVME_ID_CNS_NS_ACTIVE_LIST = 0x02,
+ NVME_ID_CNS_NS_PRESENT_LIST = 0x10,
+ NVME_ID_CNS_NS_PRESENT = 0x11,
+ NVME_ID_CNS_CTRL_NS_LIST = 0x12,
+ NVME_ID_CNS_CTRL_LIST = 0x13,
+};
+
+enum {
NVME_NS_FEAT_THIN = 1 << 0,
NVME_NS_FLBAS_LBA_MASK = 0xf,
NVME_NS_FLBAS_META_EXT = 0x10,
@@ -556,8 +571,10 @@
nvme_admin_set_features = 0x09,
nvme_admin_get_features = 0x0a,
nvme_admin_async_event = 0x0c,
+ nvme_admin_ns_mgmt = 0x0d,
nvme_admin_activate_fw = 0x10,
nvme_admin_download_fw = 0x11,
+ nvme_admin_ns_attach = 0x15,
nvme_admin_keep_alive = 0x18,
nvme_admin_format_nvm = 0x80,
nvme_admin_security_send = 0x81,
@@ -583,6 +600,7 @@
NVME_FEAT_WRITE_ATOMIC = 0x0a,
NVME_FEAT_ASYNC_EVENT = 0x0b,
NVME_FEAT_AUTO_PST = 0x0c,
+ NVME_FEAT_HOST_MEM_BUF = 0x0d,
NVME_FEAT_KATO = 0x0f,
NVME_FEAT_SW_PROGRESS = 0x80,
NVME_FEAT_HOST_ID = 0x81,
@@ -745,7 +763,7 @@
struct nvmf_disc_rsp_page_entry {
__u8 trtype;
__u8 adrfam;
- __u8 nqntype;
+ __u8 subtype;
__u8 treq;
__le16 portid;
__le16 cntlid;
@@ -794,7 +812,7 @@
};
struct nvmf_connect_data {
- uuid_be hostid;
+ __u8 hostid[16];
__le16 cntlid;
char resv4[238];
char subsysnqn[NVMF_NQN_FIELD_LEN];
@@ -905,12 +923,23 @@
NVME_SC_INVALID_VECTOR = 0x108,
NVME_SC_INVALID_LOG_PAGE = 0x109,
NVME_SC_INVALID_FORMAT = 0x10a,
- NVME_SC_FIRMWARE_NEEDS_RESET = 0x10b,
+ NVME_SC_FW_NEEDS_CONV_RESET = 0x10b,
NVME_SC_INVALID_QUEUE = 0x10c,
NVME_SC_FEATURE_NOT_SAVEABLE = 0x10d,
NVME_SC_FEATURE_NOT_CHANGEABLE = 0x10e,
NVME_SC_FEATURE_NOT_PER_NS = 0x10f,
- NVME_SC_FW_NEEDS_RESET_SUBSYS = 0x110,
+ NVME_SC_FW_NEEDS_SUBSYS_RESET = 0x110,
+ NVME_SC_FW_NEEDS_RESET = 0x111,
+ NVME_SC_FW_NEEDS_MAX_TIME = 0x112,
+ NVME_SC_FW_ACIVATE_PROHIBITED = 0x113,
+ NVME_SC_OVERLAPPING_RANGE = 0x114,
+ NVME_SC_NS_INSUFFICENT_CAP = 0x115,
+ NVME_SC_NS_ID_UNAVAILABLE = 0x116,
+ NVME_SC_NS_ALREADY_ATTACHED = 0x118,
+ NVME_SC_NS_IS_PRIVATE = 0x119,
+ NVME_SC_NS_NOT_ATTACHED = 0x11a,
+ NVME_SC_THIN_PROV_NOT_SUPP = 0x11b,
+ NVME_SC_CTRL_LIST_INVALID = 0x11c,
/*
* I/O Command Set Specific - NVM commands:
@@ -941,6 +970,7 @@
NVME_SC_REFTAG_CHECK = 0x284,
NVME_SC_COMPARE_FAILED = 0x285,
NVME_SC_ACCESS_DENIED = 0x286,
+ NVME_SC_UNWRITTEN_BLOCK = 0x287,
NVME_SC_DNR = 0x4000,
};
@@ -960,6 +990,7 @@
__le16 status; /* did the command fail, and if so, why? */
};
-#define NVME_VS(major, minor) (((major) << 16) | ((minor) << 8))
+#define NVME_VS(major, minor, tertiary) \
+ (((major) << 16) | ((minor) << 8) | (tertiary))
#endif /* _LINUX_NVME_H */
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index d4129bb..f9ec9ad 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -300,7 +300,8 @@
retry:
/* Read the page with vaddr into memory */
- ret = get_user_pages_remote(NULL, mm, vaddr, 1, 0, 1, &old_page, &vma);
+ ret = get_user_pages_remote(NULL, mm, vaddr, 1, FOLL_FORCE, &old_page,
+ &vma);
if (ret <= 0)
return ret;
@@ -1710,7 +1711,8 @@
* but we treat this as a 'remote' access since it is
* essentially a kernel access to the memory.
*/
- result = get_user_pages_remote(NULL, mm, vaddr, 1, 0, 1, &page, NULL);
+ result = get_user_pages_remote(NULL, mm, vaddr, 1, FOLL_FORCE, &page,
+ NULL);
if (result < 0)
return result;
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index d5e3973..de08fc9 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1769,6 +1769,10 @@
cont_flush();
}
+ /* Skip empty continuation lines that couldn't be added - they just flush */
+ if (!text_len && (lflags & LOG_CONT))
+ return 0;
+
/* If it doesn't end in a newline, try to buffer the current line */
if (!(lflags & LOG_NEWLINE)) {
if (cont_add(facility, level, lflags, text, text_len))
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 2a99027..e6474f7 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -537,7 +537,7 @@
int this_len, retval;
this_len = (len > sizeof(buf)) ? sizeof(buf) : len;
- retval = access_process_vm(tsk, src, buf, this_len, 0);
+ retval = access_process_vm(tsk, src, buf, this_len, FOLL_FORCE);
if (!retval) {
if (copied)
break;
@@ -564,7 +564,8 @@
this_len = (len > sizeof(buf)) ? sizeof(buf) : len;
if (copy_from_user(buf, src, this_len))
return -EFAULT;
- retval = access_process_vm(tsk, dst, buf, this_len, 1);
+ retval = access_process_vm(tsk, dst, buf, this_len,
+ FOLL_FORCE | FOLL_WRITE);
if (!retval) {
if (copied)
break;
@@ -1127,7 +1128,7 @@
unsigned long tmp;
int copied;
- copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
+ copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), FOLL_FORCE);
if (copied != sizeof(tmp))
return -EIO;
return put_user(tmp, (unsigned long __user *)data);
@@ -1138,7 +1139,8 @@
{
int copied;
- copied = access_process_vm(tsk, addr, &data, sizeof(data), 1);
+ copied = access_process_vm(tsk, addr, &data, sizeof(data),
+ FOLL_FORCE | FOLL_WRITE);
return (copied == sizeof(data)) ? 0 : -EIO;
}
@@ -1155,7 +1157,8 @@
switch (request) {
case PTRACE_PEEKTEXT:
case PTRACE_PEEKDATA:
- ret = access_process_vm(child, addr, &word, sizeof(word), 0);
+ ret = access_process_vm(child, addr, &word, sizeof(word),
+ FOLL_FORCE);
if (ret != sizeof(word))
ret = -EIO;
else
@@ -1164,7 +1167,8 @@
case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = access_process_vm(child, addr, &data, sizeof(data), 1);
+ ret = access_process_vm(child, addr, &data, sizeof(data),
+ FOLL_FORCE | FOLL_WRITE);
ret = (ret != sizeof(data) ? -EIO : 0);
break;
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 76ee7de..d941c97 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -690,7 +690,14 @@
* will definitely be update (after enqueue).
*/
sa->period_contrib = 1023;
- sa->load_avg = scale_load_down(se->load.weight);
+ /*
+ * Tasks are intialized with full load to be seen as heavy tasks until
+ * they get a chance to stabilize to their real load level.
+ * Group entities are intialized with zero load to reflect the fact that
+ * nothing has been attached to the task group yet.
+ */
+ if (entity_is_task(se))
+ sa->load_avg = scale_load_down(se->load.weight);
sa->load_sum = sa->load_avg * LOAD_AVG_MAX;
/*
* At this point, util_avg won't be used in select_task_rq_fair anyway
diff --git a/mm/frame_vector.c b/mm/frame_vector.c
index 381bb07..db77dcb 100644
--- a/mm/frame_vector.c
+++ b/mm/frame_vector.c
@@ -11,10 +11,7 @@
* get_vaddr_frames() - map virtual addresses to pfns
* @start: starting user address
* @nr_frames: number of pages / pfns from start to map
- * @write: whether pages will be written to by the caller
- * @force: whether to force write access even if user mapping is
- * readonly. See description of the same argument of
- get_user_pages().
+ * @gup_flags: flags modifying lookup behaviour
* @vec: structure which receives pages / pfns of the addresses mapped.
* It should have space for at least nr_frames entries.
*
@@ -34,7 +31,7 @@
* This function takes care of grabbing mmap_sem as necessary.
*/
int get_vaddr_frames(unsigned long start, unsigned int nr_frames,
- bool write, bool force, struct frame_vector *vec)
+ unsigned int gup_flags, struct frame_vector *vec)
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
@@ -59,7 +56,7 @@
vec->got_ref = true;
vec->is_pfns = false;
ret = get_user_pages_locked(start, nr_frames,
- write, force, (struct page **)(vec->ptrs), &locked);
+ gup_flags, (struct page **)(vec->ptrs), &locked);
goto out;
}
diff --git a/mm/gup.c b/mm/gup.c
index 96b2b2f..7aa113c 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -60,6 +60,16 @@
return -EEXIST;
}
+/*
+ * FOLL_FORCE can write to even unwritable pte's, but only
+ * after we've gone through a COW cycle and they are dirty.
+ */
+static inline bool can_follow_write_pte(pte_t pte, unsigned int flags)
+{
+ return pte_write(pte) ||
+ ((flags & FOLL_FORCE) && (flags & FOLL_COW) && pte_dirty(pte));
+}
+
static struct page *follow_page_pte(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmd, unsigned int flags)
{
@@ -95,7 +105,7 @@
}
if ((flags & FOLL_NUMA) && pte_protnone(pte))
goto no_page;
- if ((flags & FOLL_WRITE) && !pte_write(pte)) {
+ if ((flags & FOLL_WRITE) && !can_follow_write_pte(pte, flags)) {
pte_unmap_unlock(ptep, ptl);
return NULL;
}
@@ -412,7 +422,7 @@
* reCOWed by userspace write).
*/
if ((ret & VM_FAULT_WRITE) && !(vma->vm_flags & VM_WRITE))
- *flags &= ~FOLL_WRITE;
+ *flags |= FOLL_COW;
return 0;
}
@@ -729,7 +739,6 @@
struct mm_struct *mm,
unsigned long start,
unsigned long nr_pages,
- int write, int force,
struct page **pages,
struct vm_area_struct **vmas,
int *locked, bool notify_drop,
@@ -747,10 +756,6 @@
if (pages)
flags |= FOLL_GET;
- if (write)
- flags |= FOLL_WRITE;
- if (force)
- flags |= FOLL_FORCE;
pages_done = 0;
lock_dropped = false;
@@ -843,12 +848,12 @@
* up_read(&mm->mmap_sem);
*/
long get_user_pages_locked(unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
+ unsigned int gup_flags, struct page **pages,
int *locked)
{
return __get_user_pages_locked(current, current->mm, start, nr_pages,
- write, force, pages, NULL, locked, true,
- FOLL_TOUCH);
+ pages, NULL, locked, true,
+ gup_flags | FOLL_TOUCH);
}
EXPORT_SYMBOL(get_user_pages_locked);
@@ -864,14 +869,14 @@
*/
__always_inline long __get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
- unsigned int gup_flags)
+ struct page **pages, unsigned int gup_flags)
{
long ret;
int locked = 1;
+
down_read(&mm->mmap_sem);
- ret = __get_user_pages_locked(tsk, mm, start, nr_pages, write, force,
- pages, NULL, &locked, false, gup_flags);
+ ret = __get_user_pages_locked(tsk, mm, start, nr_pages, pages, NULL,
+ &locked, false, gup_flags);
if (locked)
up_read(&mm->mmap_sem);
return ret;
@@ -896,10 +901,10 @@
* "force" parameter).
*/
long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages)
+ struct page **pages, unsigned int gup_flags)
{
return __get_user_pages_unlocked(current, current->mm, start, nr_pages,
- write, force, pages, FOLL_TOUCH);
+ pages, gup_flags | FOLL_TOUCH);
}
EXPORT_SYMBOL(get_user_pages_unlocked);
@@ -910,9 +915,7 @@
* @mm: mm_struct of target mm
* @start: starting user address
* @nr_pages: number of pages from start to pin
- * @write: whether pages will be written to by the caller
- * @force: whether to force access even when user mapping is currently
- * protected (but never forces write access to shared mapping).
+ * @gup_flags: flags modifying lookup behaviour
* @pages: array that receives pointers to the pages pinned.
* Should be at least nr_pages long. Or NULL, if caller
* only intends to ensure the pages are faulted in.
@@ -941,9 +944,9 @@
* or similar operation cannot guarantee anything stronger anyway because
* locks can't be held over the syscall boundary.
*
- * If write=0, the page must not be written to. If the page is written to,
- * set_page_dirty (or set_page_dirty_lock, as appropriate) must be called
- * after the page is finished with, and before put_page is called.
+ * If gup_flags & FOLL_WRITE == 0, the page must not be written to. If the page
+ * is written to, set_page_dirty (or set_page_dirty_lock, as appropriate) must
+ * be called after the page is finished with, and before put_page is called.
*
* get_user_pages is typically used for fewer-copy IO operations, to get a
* handle on the memory by some means other than accesses via the user virtual
@@ -960,12 +963,12 @@
*/
long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
+ unsigned int gup_flags, struct page **pages,
struct vm_area_struct **vmas)
{
- return __get_user_pages_locked(tsk, mm, start, nr_pages, write, force,
- pages, vmas, NULL, false,
- FOLL_TOUCH | FOLL_REMOTE);
+ return __get_user_pages_locked(tsk, mm, start, nr_pages, pages, vmas,
+ NULL, false,
+ gup_flags | FOLL_TOUCH | FOLL_REMOTE);
}
EXPORT_SYMBOL(get_user_pages_remote);
@@ -976,12 +979,12 @@
* obviously don't pass FOLL_REMOTE in here.
*/
long get_user_pages(unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
+ unsigned int gup_flags, struct page **pages,
struct vm_area_struct **vmas)
{
return __get_user_pages_locked(current, current->mm, start, nr_pages,
- write, force, pages, vmas, NULL, false,
- FOLL_TOUCH);
+ pages, vmas, NULL, false,
+ gup_flags | FOLL_TOUCH);
}
EXPORT_SYMBOL(get_user_pages);
@@ -1505,7 +1508,8 @@
start += nr << PAGE_SHIFT;
pages += nr;
- ret = get_user_pages_unlocked(start, nr_pages - nr, write, 0, pages);
+ ret = get_user_pages_unlocked(start, nr_pages - nr, pages,
+ write ? FOLL_WRITE : 0);
/* Have to be a bit careful with return values */
if (nr > 0) {
diff --git a/mm/memory.c b/mm/memory.c
index fc1987d..e18c57b 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3869,10 +3869,11 @@
* given task for page fault accounting.
*/
static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
- unsigned long addr, void *buf, int len, int write)
+ unsigned long addr, void *buf, int len, unsigned int gup_flags)
{
struct vm_area_struct *vma;
void *old_buf = buf;
+ int write = gup_flags & FOLL_WRITE;
down_read(&mm->mmap_sem);
/* ignore errors, just check how much was successfully transferred */
@@ -3882,7 +3883,7 @@
struct page *page = NULL;
ret = get_user_pages_remote(tsk, mm, addr, 1,
- write, 1, &page, &vma);
+ gup_flags, &page, &vma);
if (ret <= 0) {
#ifndef CONFIG_HAVE_IOREMAP_PROT
break;
@@ -3934,14 +3935,14 @@
* @addr: start address to access
* @buf: source or destination buffer
* @len: number of bytes to transfer
- * @write: whether the access is a write
+ * @gup_flags: flags modifying lookup behaviour
*
* The caller must hold a reference on @mm.
*/
int access_remote_vm(struct mm_struct *mm, unsigned long addr,
- void *buf, int len, int write)
+ void *buf, int len, unsigned int gup_flags)
{
- return __access_remote_vm(NULL, mm, addr, buf, len, write);
+ return __access_remote_vm(NULL, mm, addr, buf, len, gup_flags);
}
/*
@@ -3950,7 +3951,7 @@
* Do not walk the page table directly, use get_user_pages
*/
int access_process_vm(struct task_struct *tsk, unsigned long addr,
- void *buf, int len, int write)
+ void *buf, int len, unsigned int gup_flags)
{
struct mm_struct *mm;
int ret;
@@ -3959,7 +3960,8 @@
if (!mm)
return 0;
- ret = __access_remote_vm(tsk, mm, addr, buf, len, write);
+ ret = __access_remote_vm(tsk, mm, addr, buf, len, gup_flags);
+
mmput(mm);
return ret;
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index ad1c96a..0b859af 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -850,7 +850,7 @@
struct page *p;
int err;
- err = get_user_pages(addr & PAGE_MASK, 1, 0, 0, &p, NULL);
+ err = get_user_pages(addr & PAGE_MASK, 1, 0, &p, NULL);
if (err >= 0) {
err = page_to_nid(p);
put_page(p);
diff --git a/mm/nommu.c b/mm/nommu.c
index 95daf81..db5fd17 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -160,33 +160,25 @@
* - don't permit access to VMAs that don't support it, such as I/O mappings
*/
long get_user_pages(unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
+ unsigned int gup_flags, struct page **pages,
struct vm_area_struct **vmas)
{
- int flags = 0;
-
- if (write)
- flags |= FOLL_WRITE;
- if (force)
- flags |= FOLL_FORCE;
-
- return __get_user_pages(current, current->mm, start, nr_pages, flags,
- pages, vmas, NULL);
+ return __get_user_pages(current, current->mm, start, nr_pages,
+ gup_flags, pages, vmas, NULL);
}
EXPORT_SYMBOL(get_user_pages);
long get_user_pages_locked(unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
+ unsigned int gup_flags, struct page **pages,
int *locked)
{
- return get_user_pages(start, nr_pages, write, force, pages, NULL);
+ return get_user_pages(start, nr_pages, gup_flags, pages, NULL);
}
EXPORT_SYMBOL(get_user_pages_locked);
long __get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
- unsigned int gup_flags)
+ struct page **pages, unsigned int gup_flags)
{
long ret;
down_read(&mm->mmap_sem);
@@ -198,10 +190,10 @@
EXPORT_SYMBOL(__get_user_pages_unlocked);
long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages)
+ struct page **pages, unsigned int gup_flags)
{
return __get_user_pages_unlocked(current, current->mm, start, nr_pages,
- write, force, pages, 0);
+ pages, gup_flags);
}
EXPORT_SYMBOL(get_user_pages_unlocked);
@@ -1817,9 +1809,10 @@
EXPORT_SYMBOL(filemap_map_pages);
static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
- unsigned long addr, void *buf, int len, int write)
+ unsigned long addr, void *buf, int len, unsigned int gup_flags)
{
struct vm_area_struct *vma;
+ int write = gup_flags & FOLL_WRITE;
down_read(&mm->mmap_sem);
@@ -1854,21 +1847,22 @@
* @addr: start address to access
* @buf: source or destination buffer
* @len: number of bytes to transfer
- * @write: whether the access is a write
+ * @gup_flags: flags modifying lookup behaviour
*
* The caller must hold a reference on @mm.
*/
int access_remote_vm(struct mm_struct *mm, unsigned long addr,
- void *buf, int len, int write)
+ void *buf, int len, unsigned int gup_flags)
{
- return __access_remote_vm(NULL, mm, addr, buf, len, write);
+ return __access_remote_vm(NULL, mm, addr, buf, len, gup_flags);
}
/*
* Access another process' address space.
* - source/target buffer must be kernel space
*/
-int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
+int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len,
+ unsigned int gup_flags)
{
struct mm_struct *mm;
@@ -1879,7 +1873,7 @@
if (!mm)
return 0;
- len = __access_remote_vm(tsk, mm, addr, buf, len, write);
+ len = __access_remote_vm(tsk, mm, addr, buf, len, gup_flags);
mmput(mm);
return len;
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 07514d4..be8dc8d 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -88,12 +88,16 @@
ssize_t rc = 0;
unsigned long max_pages_per_loop = PVM_MAX_KMALLOC_PAGES
/ sizeof(struct pages *);
+ unsigned int flags = FOLL_REMOTE;
/* Work out address and page range required */
if (len == 0)
return 0;
nr_pages = (addr + len - 1) / PAGE_SIZE - addr / PAGE_SIZE + 1;
+ if (vm_write)
+ flags |= FOLL_WRITE;
+
while (!rc && nr_pages && iov_iter_count(iter)) {
int pages = min(nr_pages, max_pages_per_loop);
size_t bytes;
@@ -104,8 +108,7 @@
* current/current->mm
*/
pages = __get_user_pages_unlocked(task, mm, pa, pages,
- vm_write, 0, process_pages,
- FOLL_REMOTE);
+ process_pages, flags);
if (pages <= 0)
return -EFAULT;
diff --git a/mm/util.c b/mm/util.c
index 662cddf..952cbe7 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -283,7 +283,8 @@
int __weak get_user_pages_fast(unsigned long start,
int nr_pages, int write, struct page **pages)
{
- return get_user_pages_unlocked(start, nr_pages, write, 0, pages);
+ return get_user_pages_unlocked(start, nr_pages, pages,
+ write ? FOLL_WRITE : 0);
}
EXPORT_SYMBOL_GPL(get_user_pages_fast);
@@ -623,7 +624,7 @@
if (len > buflen)
len = buflen;
- res = access_process_vm(task, arg_start, buffer, len, 0);
+ res = access_process_vm(task, arg_start, buffer, len, FOLL_FORCE);
/*
* If the nul at the end of args has been overwritten, then
@@ -638,7 +639,8 @@
if (len > buflen - res)
len = buflen - res;
res += access_process_vm(task, env_start,
- buffer+res, len, 0);
+ buffer+res, len,
+ FOLL_FORCE);
res = strnlen(buffer, res);
}
}
diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
index 00d2601..1a7c9a7 100644
--- a/net/ceph/pagevec.c
+++ b/net/ceph/pagevec.c
@@ -26,7 +26,7 @@
while (got < num_pages) {
rc = get_user_pages_unlocked(
(unsigned long)data + ((unsigned long)got * PAGE_SIZE),
- num_pages - got, write_page, 0, pages + got);
+ num_pages - got, pages + got, write_page ? FOLL_WRITE : 0);
if (rc < 0)
break;
BUG_ON(rc == 0);
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index ade7c6c..682b73a 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -881,7 +881,7 @@
* the execve().
*/
if (get_user_pages_remote(current, bprm->mm, pos, 1,
- 0, 1, &page, NULL) <= 0)
+ FOLL_FORCE, &page, NULL) <= 0)
return false;
#else
page = bprm->page[pos / PAGE_SIZE];
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index db96688..8035cc1 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -84,7 +84,8 @@
* mm and might be done in another context, so we must
* use FOLL_REMOTE.
*/
- __get_user_pages_unlocked(NULL, mm, addr, 1, 1, 0, NULL, FOLL_REMOTE);
+ __get_user_pages_unlocked(NULL, mm, addr, 1, NULL,
+ FOLL_WRITE | FOLL_REMOTE);
kvm_async_page_present_sync(vcpu, apf);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 81dfc73..28510e7 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1416,10 +1416,15 @@
down_read(¤t->mm->mmap_sem);
npages = get_user_page_nowait(addr, write_fault, page);
up_read(¤t->mm->mmap_sem);
- } else
+ } else {
+ unsigned int flags = FOLL_TOUCH | FOLL_HWPOISON;
+
+ if (write_fault)
+ flags |= FOLL_WRITE;
+
npages = __get_user_pages_unlocked(current, current->mm, addr, 1,
- write_fault, 0, page,
- FOLL_TOUCH|FOLL_HWPOISON);
+ page, flags);
+ }
if (npages != 1)
return npages;
