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irqchip updates for 4.15, take #2 

- A number of MIPS GIC updates and cleanups
 - One GICv4 update
 - Another firmware workaround for GICv2
 - Support for Mason8 GPIOs
 - Tiny documentation fix
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Merge tag 'irqchip-4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull the second batch of irqchip updates for 4.15 from marc Zyngier:

 - A number of MIPS GIC updates and cleanups
 - One GICv4 update
 - Another firmware workaround for GICv2
 - Support for Mason8 GPIOs
 - Tiny documentation fix
This commit is contained in:
Thomas Gleixner 2017-11-02 19:18:08 +01:00
Родитель 10d94ff4d5 61dc367e5d
Коммит 722c908f84
241 изменённых файлов: 3103 добавлений и 1916 удалений
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7
Documentation/admin-guide/kernel-parameters.txt
Просмотреть файл

@ -1713,6 +1713,13 @@
irqaffinity= [SMP] Set the default irq affinity mask
The argument is a cpu list, as described above.
irqchip.gicv2_force_probe=
[ARM, ARM64]
Format: <bool>
Force the kernel to look for the second 4kB page
of a GICv2 controller even if the memory range
exposed by the device tree is too small.
irqfixup [HW]
When an interrupt is not handled search all handlers
for it. Intended to get systems with badly broken

2
Documentation/cpu-freq/index.txt
Просмотреть файл

@ -32,8 +32,6 @@ cpufreq-stats.txt - General description of sysfs cpufreq stats.
index.txt - File index, Mailing list and Links (this document)
intel-pstate.txt - Intel pstate cpufreq driver specific file.
pcc-cpufreq.txt - PCC cpufreq driver specific file.

1
Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
Просмотреть файл

@ -10,6 +10,7 @@ number of interrupt exposed depends on the SoC.
Required properties:
- compatible : must have "amlogic,meson8-gpio-intc” and either
“amlogic,meson8-gpio-intc” for meson8 SoCs (S802) or
“amlogic,meson8b-gpio-intc” for meson8b SoCs (S805) or
“amlogic,meson-gxbb-gpio-intc” for GXBB SoCs (S905) or
“amlogic,meson-gxl-gpio-intc” for GXL SoCs (S905X, S912)

28
Documentation/devicetree/bindings/leds/ams,as3645a.txt
Просмотреть файл

@ -15,11 +15,14 @@ Required properties
compatible : Must be "ams,as3645a".
reg : The I2C address of the device. Typically 0x30.
#address-cells : 1
#size-cells : 0
Required properties of the "flash" child node
=============================================
Required properties of the flash child node (0)
===============================================
reg: 0
flash-timeout-us: Flash timeout in microseconds. The value must be in
the range [100000, 850000] and divisible by 50000.
flash-max-microamp: Maximum flash current in microamperes. Has to be
@ -33,20 +36,21 @@ ams,input-max-microamp: Maximum flash controller input current. The
and divisible by 50000.
Optional properties of the "flash" child node
=============================================
Optional properties of the flash child node
===========================================
label : The label of the flash LED.
Required properties of the "indicator" child node
=================================================
Required properties of the indicator child node (1)
===================================================
reg: 1
led-max-microamp: Maximum indicator current. The allowed values are
2500, 5000, 7500 and 10000.
Optional properties of the "indicator" child node
=================================================
Optional properties of the indicator child node
===============================================
label : The label of the indicator LED.
@ -55,16 +59,20 @@ Example
=======
as3645a@30 {
#address-cells: 1
#size-cells: 0
reg = <0x30>;
compatible = "ams,as3645a";
flash {
flash@0 {
reg = <0x0>;
flash-timeout-us = <150000>;
flash-max-microamp = <320000>;
led-max-microamp = <60000>;
ams,input-max-microamp = <1750000>;
label = "as3645a:flash";
};
indicator {
indicator@1 {
reg = <0x1>;
led-max-microamp = <10000>;
label = "as3645a:indicator";
};

6
MAINTAINERS
Просмотреть файл

@ -8597,6 +8597,12 @@ M: Sean Wang <sean.wang@mediatek.com>
S: Maintained
F: drivers/media/rc/mtk-cir.c
MEDIATEK PMIC LED DRIVER
M: Sean Wang <sean.wang@mediatek.com>
S: Maintained
F: drivers/leds/leds-mt6323.c
F: Documentation/devicetree/bindings/leds/leds-mt6323.txt
MEDIATEK ETHERNET DRIVER
M: Felix Fietkau <nbd@openwrt.org>
M: John Crispin <john@phrozen.org>

6
Makefile
Просмотреть файл

@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 14
SUBLEVEL = 0
EXTRAVERSION = -rc2
EXTRAVERSION = -rc3
NAME = Fearless Coyote
# *DOCUMENTATION*
@ -1172,11 +1172,11 @@ headers_check: headers_install
PHONY += kselftest
kselftest:
$(Q)$(MAKE) -C tools/testing/selftests run_tests
$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests
PHONY += kselftest-clean
kselftest-clean:
$(Q)$(MAKE) -C tools/testing/selftests clean
$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests clean
PHONY += kselftest-merge
kselftest-merge:

10
arch/arm/boot/dts/omap3-n950-n9.dtsi
Просмотреть файл

@ -267,15 +267,19 @@
clock-frequency = <400000>;
as3645a@30 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x30>;
compatible = "ams,as3645a";
flash {
flash@0 {
reg = <0x0>;
flash-timeout-us = <150000>;
flash-max-microamp = <320000>;
led-max-microamp = <60000>;
peak-current-limit = <1750000>;
ams,input-max-microamp = <1750000>;
};
indicator {
indicator@1 {
reg = <0x1>;
led-max-microamp = <10000>;
};
};

2
arch/arm64/include/asm/pgtable.h
Просмотреть файл

@ -401,7 +401,7 @@ static inline phys_addr_t pmd_page_paddr(pmd_t pmd)
/* Find an entry in the third-level page table. */
#define pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset_phys(dir,addr) (pmd_page_paddr(*(dir)) + pte_index(addr) * sizeof(pte_t))
#define pte_offset_phys(dir,addr) (pmd_page_paddr(READ_ONCE(*(dir))) + pte_index(addr) * sizeof(pte_t))
#define pte_offset_kernel(dir,addr) ((pte_t *)__va(pte_offset_phys((dir), (addr))))
#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr))

1
arch/arm64/kernel/head.S
Просмотреть файл

@ -384,6 +384,7 @@ ENTRY(kimage_vaddr)
* booted in EL1 or EL2 respectively.
*/
ENTRY(el2_setup)
msr SPsel, #1 // We want to use SP_EL{1,2}
mrs x0, CurrentEL
cmp x0, #CurrentEL_EL2
b.eq 1f

2
arch/arm64/mm/fault.c
Просмотреть файл

@ -651,7 +651,7 @@ static const struct fault_info fault_info[] = {
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 0 translation fault" },
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 1 translation fault" },
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 2 translation fault" },
{ do_page_fault, SIGSEGV, SEGV_MAPERR, "level 3 translation fault" },
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 3 translation fault" },
{ do_bad, SIGBUS, 0, "unknown 8" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 1 access flag fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 2 access flag fault" },

2
arch/microblaze/Kconfig
Просмотреть файл

@ -39,7 +39,7 @@ config MICROBLAZE
# Endianness selection
choice
prompt "Endianness selection"
default CPU_BIG_ENDIAN
default CPU_LITTLE_ENDIAN
help
microblaze architectures can be configured for either little or
big endian formats. Be sure to select the appropriate mode.

1
arch/microblaze/include/uapi/asm/Kbuild
Просмотреть файл

@ -7,6 +7,7 @@ generic-y += fcntl.h
generic-y += ioctl.h
generic-y += ioctls.h
generic-y += ipcbuf.h
generic-y += kvm_para.h
generic-y += mman.h
generic-y += msgbuf.h
generic-y += param.h

2
arch/microblaze/kernel/dma.c
Просмотреть файл

@ -165,7 +165,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
unsigned long attrs)
{
#ifdef CONFIG_MMU
unsigned long user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
unsigned long user_count = vma_pages(vma);
unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
unsigned long off = vma->vm_pgoff;
unsigned long pfn;

14
arch/powerpc/kvm/book3s_hv_rmhandlers.S
Просмотреть файл

@ -1121,6 +1121,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
BEGIN_FTR_SECTION
mtspr SPRN_PPR, r0
END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
/* Move canary into DSISR to check for later */
BEGIN_FTR_SECTION
li r0, 0x7fff
mtspr SPRN_HDSISR, r0
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
ld r0, VCPU_GPR(R0)(r4)
ld r4, VCPU_GPR(R4)(r4)
@ -1956,9 +1963,14 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX)
kvmppc_hdsi:
ld r3, VCPU_KVM(r9)
lbz r0, KVM_RADIX(r3)
cmpwi r0, 0
mfspr r4, SPRN_HDAR
mfspr r6, SPRN_HDSISR
BEGIN_FTR_SECTION
/* Look for DSISR canary. If we find it, retry instruction */
cmpdi r6, 0x7fff
beq 6f
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
cmpwi r0, 0
bne .Lradix_hdsi /* on radix, just save DAR/DSISR/ASDR */
/* HPTE not found fault or protection fault? */
andis. r0, r6, (DSISR_NOHPTE | DSISR_PROTFAULT)@h

4
arch/um/kernel/time.c
Просмотреть файл

@ -98,7 +98,7 @@ static struct clocksource timer_clocksource = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
static void __init timer_setup(void)
static void __init um_timer_setup(void)
{
int err;
@ -132,5 +132,5 @@ void read_persistent_clock(struct timespec *ts)
void __init time_init(void)
{
timer_set_signal_handler();
late_time_init = timer_setup;
late_time_init = um_timer_setup;
}

4
arch/x86/events/intel/cstate.c
Просмотреть файл

@ -552,6 +552,7 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_MOBILE, snb_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_DESKTOP, snb_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_X, snb_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_MOBILE, snb_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_DESKTOP, snb_cstates),
@ -560,6 +561,9 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
X86_CSTATES_MODEL(INTEL_FAM6_XEON_PHI_KNM, knl_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT, glm_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_ATOM_DENVERTON, glm_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GEMINI_LAKE, glm_cstates),
{ },
};
MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match);

3
arch/x86/events/intel/rapl.c
Просмотреть файл

@ -775,6 +775,9 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_DESKTOP, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_DENVERTON, hsw_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GEMINI_LAKE, hsw_rapl_init),
{},
};

4
arch/x86/events/intel/uncore_snbep.c
Просмотреть файл

@ -3462,7 +3462,7 @@ static struct intel_uncore_ops skx_uncore_iio_ops = {
static struct intel_uncore_type skx_uncore_iio = {
.name = "iio",
.num_counters = 4,
.num_boxes = 5,
.num_boxes = 6,
.perf_ctr_bits = 48,
.event_ctl = SKX_IIO0_MSR_PMON_CTL0,
.perf_ctr = SKX_IIO0_MSR_PMON_CTR0,
@ -3492,7 +3492,7 @@ static const struct attribute_group skx_uncore_format_group = {
static struct intel_uncore_type skx_uncore_irp = {
.name = "irp",
.num_counters = 2,
.num_boxes = 5,
.num_boxes = 6,
.perf_ctr_bits = 48,
.event_ctl = SKX_IRP0_MSR_PMON_CTL0,
.perf_ctr = SKX_IRP0_MSR_PMON_CTR0,

8
arch/x86/events/msr.c
Просмотреть файл

@ -63,6 +63,14 @@ static bool test_intel(int idx)
case INTEL_FAM6_ATOM_SILVERMONT1:
case INTEL_FAM6_ATOM_SILVERMONT2:
case INTEL_FAM6_ATOM_AIRMONT:
case INTEL_FAM6_ATOM_GOLDMONT:
case INTEL_FAM6_ATOM_DENVERTON:
case INTEL_FAM6_ATOM_GEMINI_LAKE:
case INTEL_FAM6_XEON_PHI_KNL:
case INTEL_FAM6_XEON_PHI_KNM:
if (idx == PERF_MSR_SMI)
return true;
break;

2
arch/x86/ia32/ia32_signal.c
Просмотреть файл

@ -231,7 +231,7 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
ksig->ka.sa.sa_restorer)
sp = (unsigned long) ksig->ka.sa.sa_restorer;
if (fpu->fpstate_active) {
if (fpu->initialized) {
unsigned long fx_aligned, math_size;
sp = fpu__alloc_mathframe(sp, 1, &fx_aligned, &math_size);

8
arch/x86/include/asm/asm.h
Просмотреть файл

@ -11,10 +11,12 @@
# define __ASM_FORM_COMMA(x) " " #x ","
#endif
#ifdef CONFIG_X86_32
#ifndef __x86_64__
/* 32 bit */
# define __ASM_SEL(a,b) __ASM_FORM(a)
# define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(a)
#else
/* 64 bit */
# define __ASM_SEL(a,b) __ASM_FORM(b)
# define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(b)
#endif
@ -139,8 +141,8 @@
* gets set up by the containing function. If you forget to do this, objtool
* may print a "call without frame pointer save/setup" warning.
*/
register unsigned int __asm_call_sp asm("esp");
#define ASM_CALL_CONSTRAINT "+r" (__asm_call_sp)
register unsigned long current_stack_pointer asm(_ASM_SP);
#define ASM_CALL_CONSTRAINT "+r" (current_stack_pointer)
#endif
#endif /* _ASM_X86_ASM_H */

90
arch/x86/include/asm/fpu/internal.h
Просмотреть файл

@ -23,11 +23,9 @@
/*
* High level FPU state handling functions:
*/
extern void fpu__activate_curr(struct fpu *fpu);
extern void fpu__activate_fpstate_read(struct fpu *fpu);
extern void fpu__activate_fpstate_write(struct fpu *fpu);
extern void fpu__current_fpstate_write_begin(void);
extern void fpu__current_fpstate_write_end(void);
extern void fpu__initialize(struct fpu *fpu);
extern void fpu__prepare_read(struct fpu *fpu);
extern void fpu__prepare_write(struct fpu *fpu);
extern void fpu__save(struct fpu *fpu);
extern void fpu__restore(struct fpu *fpu);
extern int fpu__restore_sig(void __user *buf, int ia32_frame);
@ -120,20 +118,11 @@ extern void fpstate_sanitize_xstate(struct fpu *fpu);
err; \
})
#define check_insn(insn, output, input...) \
({ \
int err; \
#define kernel_insn(insn, output, input...) \
asm volatile("1:" #insn "\n\t" \
"2:\n" \
".section .fixup,\"ax\"\n" \
"3: movl $-1,%[err]\n" \
" jmp 2b\n" \
".previous\n" \
_ASM_EXTABLE(1b, 3b) \
: [err] "=r" (err), output \
: "0"(0), input); \
err; \
})
_ASM_EXTABLE_HANDLE(1b, 2b, ex_handler_fprestore) \
: output : input)
static inline int copy_fregs_to_user(struct fregs_state __user *fx)
{
@ -153,20 +142,16 @@ static inline int copy_fxregs_to_user(struct fxregs_state __user *fx)
static inline void copy_kernel_to_fxregs(struct fxregs_state *fx)
{
int err;
if (IS_ENABLED(CONFIG_X86_32)) {
err = check_insn(fxrstor %[fx], "=m" (*fx), [fx] "m" (*fx));
kernel_insn(fxrstor %[fx], "=m" (*fx), [fx] "m" (*fx));
} else {
if (IS_ENABLED(CONFIG_AS_FXSAVEQ)) {
err = check_insn(fxrstorq %[fx], "=m" (*fx), [fx] "m" (*fx));
kernel_insn(fxrstorq %[fx], "=m" (*fx), [fx] "m" (*fx));
} else {
/* See comment in copy_fxregs_to_kernel() below. */
err = check_insn(rex64/fxrstor (%[fx]), "=m" (*fx), [fx] "R" (fx), "m" (*fx));
kernel_insn(rex64/fxrstor (%[fx]), "=m" (*fx), [fx] "R" (fx), "m" (*fx));
}
}
/* Copying from a kernel buffer to FPU registers should never fail: */
WARN_ON_FPU(err);
}
static inline int copy_user_to_fxregs(struct fxregs_state __user *fx)
@ -183,9 +168,7 @@ static inline int copy_user_to_fxregs(struct fxregs_state __user *fx)
static inline void copy_kernel_to_fregs(struct fregs_state *fx)
{
int err = check_insn(frstor %[fx], "=m" (*fx), [fx] "m" (*fx));
WARN_ON_FPU(err);
kernel_insn(frstor %[fx], "=m" (*fx), [fx] "m" (*fx));
}
static inline int copy_user_to_fregs(struct fregs_state __user *fx)
@ -281,18 +264,13 @@ static inline void copy_fxregs_to_kernel(struct fpu *fpu)
* Use XRSTORS to restore context if it is enabled. XRSTORS supports compact
* XSAVE area format.
*/
#define XSTATE_XRESTORE(st, lmask, hmask, err) \
#define XSTATE_XRESTORE(st, lmask, hmask) \
asm volatile(ALTERNATIVE(XRSTOR, \
XRSTORS, X86_FEATURE_XSAVES) \
"\n" \
"xor %[err], %[err]\n" \
"3:\n" \
".pushsection .fixup,\"ax\"\n" \
"4: movl $-2, %[err]\n" \
"jmp 3b\n" \
".popsection\n" \
_ASM_EXTABLE(661b, 4b) \
: [err] "=r" (err) \
_ASM_EXTABLE_HANDLE(661b, 3b, ex_handler_fprestore)\
: \
: "D" (st), "m" (*st), "a" (lmask), "d" (hmask) \
: "memory")
@ -336,7 +314,10 @@ static inline void copy_kernel_to_xregs_booting(struct xregs_state *xstate)
else
XSTATE_OP(XRSTOR, xstate, lmask, hmask, err);
/* We should never fault when copying from a kernel buffer: */
/*
* We should never fault when copying from a kernel buffer, and the FPU
* state we set at boot time should be valid.
*/
WARN_ON_FPU(err);
}
@ -350,7 +331,7 @@ static inline void copy_xregs_to_kernel(struct xregs_state *xstate)
u32 hmask = mask >> 32;
int err;
WARN_ON(!alternatives_patched);
WARN_ON_FPU(!alternatives_patched);
XSTATE_XSAVE(xstate, lmask, hmask, err);
@ -365,12 +346,8 @@ static inline void copy_kernel_to_xregs(struct xregs_state *xstate, u64 mask)
{
u32 lmask = mask;
u32 hmask = mask >> 32;
int err;
XSTATE_XRESTORE(xstate, lmask, hmask, err);
/* We should never fault when copying from a kernel buffer: */
WARN_ON_FPU(err);
XSTATE_XRESTORE(xstate, lmask, hmask);
}
/*
@ -526,37 +503,16 @@ static inline int fpregs_state_valid(struct fpu *fpu, unsigned int cpu)
*/
static inline void fpregs_deactivate(struct fpu *fpu)
{
WARN_ON_FPU(!fpu->fpregs_active);
fpu->fpregs_active = 0;
this_cpu_write(fpu_fpregs_owner_ctx, NULL);
trace_x86_fpu_regs_deactivated(fpu);
}
static inline void fpregs_activate(struct fpu *fpu)
{
WARN_ON_FPU(fpu->fpregs_active);
fpu->fpregs_active = 1;
this_cpu_write(fpu_fpregs_owner_ctx, fpu);
trace_x86_fpu_regs_activated(fpu);
}
/*
* The question "does this thread have fpu access?"
* is slightly racy, since preemption could come in
* and revoke it immediately after the test.
*
* However, even in that very unlikely scenario,
* we can just assume we have FPU access - typically
* to save the FP state - we'll just take a #NM
* fault and get the FPU access back.
*/
static inline int fpregs_active(void)
{
return current->thread.fpu.fpregs_active;
}
/*
* FPU state switching for scheduling.
*
@ -571,14 +527,13 @@ static inline int fpregs_active(void)
static inline void
switch_fpu_prepare(struct fpu *old_fpu, int cpu)
{
if (old_fpu->fpregs_active) {
if (old_fpu->initialized) {
if (!copy_fpregs_to_fpstate(old_fpu))
old_fpu->last_cpu = -1;
else
old_fpu->last_cpu = cpu;
/* But leave fpu_fpregs_owner_ctx! */
old_fpu->fpregs_active = 0;
trace_x86_fpu_regs_deactivated(old_fpu);
} else
old_fpu->last_cpu = -1;
@ -595,7 +550,7 @@ switch_fpu_prepare(struct fpu *old_fpu, int cpu)
static inline void switch_fpu_finish(struct fpu *new_fpu, int cpu)
{
bool preload = static_cpu_has(X86_FEATURE_FPU) &&
new_fpu->fpstate_active;
new_fpu->initialized;
if (preload) {
if (!fpregs_state_valid(new_fpu, cpu))
@ -617,8 +572,7 @@ static inline void user_fpu_begin(void)
struct fpu *fpu = &current->thread.fpu;
preempt_disable();
if (!fpregs_active())
fpregs_activate(fpu);
fpregs_activate(fpu);
preempt_enable();
}

32
arch/x86/include/asm/fpu/types.h
Просмотреть файл

@ -68,6 +68,9 @@ struct fxregs_state {
/* Default value for fxregs_state.mxcsr: */
#define MXCSR_DEFAULT 0x1f80
/* Copy both mxcsr & mxcsr_flags with a single u64 memcpy: */
#define MXCSR_AND_FLAGS_SIZE sizeof(u64)
/*
* Software based FPU emulation state. This is arbitrary really,
* it matches the x87 format to make it easier to understand:
@ -290,36 +293,13 @@ struct fpu {
unsigned int last_cpu;
/*
* @fpstate_active:
* @initialized:
*
* This flag indicates whether this context is active: if the task
* This flag indicates whether this context is initialized: if the task
* is not running then we can restore from this context, if the task
* is running then we should save into this context.
*/
unsigned char fpstate_active;
/*
* @fpregs_active:
*
* This flag determines whether a given context is actively
* loaded into the FPU's registers and that those registers
* represent the task's current FPU state.
*
* Note the interaction with fpstate_active:
*
* # task does not use the FPU:
* fpstate_active == 0
*
* # task uses the FPU and regs are active:
* fpstate_active == 1 && fpregs_active == 1
*
* # the regs are inactive but still match fpstate:
* fpstate_active == 1 && fpregs_active == 0 && fpregs_owner == fpu
*
* The third state is what we use for the lazy restore optimization
* on lazy-switching CPUs.
*/
unsigned char fpregs_active;
unsigned char initialized;
/*
* @state:

12
arch/x86/include/asm/fpu/xstate.h
Просмотреть файл

@ -48,8 +48,12 @@ void fpu__xstate_clear_all_cpu_caps(void);
void *get_xsave_addr(struct xregs_state *xsave, int xstate);
const void *get_xsave_field_ptr(int xstate_field);
int using_compacted_format(void);
int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
void __user *ubuf, struct xregs_state *xsave);
int copyin_to_xsaves(const void *kbuf, const void __user *ubuf,
struct xregs_state *xsave);
int copy_xstate_to_kernel(void *kbuf, struct xregs_state *xsave, unsigned int offset, unsigned int size);
int copy_xstate_to_user(void __user *ubuf, struct xregs_state *xsave, unsigned int offset, unsigned int size);
int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf);
int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf);
/* Validate an xstate header supplied by userspace (ptrace or sigreturn) */
extern int validate_xstate_header(const struct xstate_header *hdr);
#endif

11
arch/x86/include/asm/thread_info.h
Просмотреть файл

@ -158,17 +158,6 @@ struct thread_info {
*/
#ifndef __ASSEMBLY__
static inline unsigned long current_stack_pointer(void)
{
unsigned long sp;
#ifdef CONFIG_X86_64
asm("mov %%rsp,%0" : "=g" (sp));
#else
asm("mov %%esp,%0" : "=g" (sp));
#endif
return sp;
}
/*
* Walks up the stack frames to make sure that the specified object is
* entirely contained by a single stack frame.

11
arch/x86/include/asm/trace/fpu.h
Просмотреть файл

@ -12,25 +12,22 @@ DECLARE_EVENT_CLASS(x86_fpu,
TP_STRUCT__entry(
__field(struct fpu *, fpu)
__field(bool, fpregs_active)
__field(bool, fpstate_active)
__field(bool, initialized)
__field(u64, xfeatures)
__field(u64, xcomp_bv)
),
TP_fast_assign(
__entry->fpu = fpu;
__entry->fpregs_active = fpu->fpregs_active;
__entry->fpstate_active = fpu->fpstate_active;
__entry->initialized = fpu->initialized;
if (boot_cpu_has(X86_FEATURE_OSXSAVE)) {
__entry->xfeatures = fpu->state.xsave.header.xfeatures;
__entry->xcomp_bv = fpu->state.xsave.header.xcomp_bv;
}
),
TP_printk("x86/fpu: %p fpregs_active: %d fpstate_active: %d xfeatures: %llx xcomp_bv: %llx",
TP_printk("x86/fpu: %p initialized: %d xfeatures: %llx xcomp_bv: %llx",
__entry->fpu,
__entry->fpregs_active,
__entry->fpstate_active,
__entry->initialized,
__entry->xfeatures,
__entry->xcomp_bv
)

2
arch/x86/include/asm/uaccess.h
Просмотреть файл

@ -337,7 +337,7 @@ do { \
_ASM_EXTABLE(1b, 4b) \
_ASM_EXTABLE(2b, 4b) \
: "=r" (retval), "=&A"(x) \
: "m" (__m(__ptr)), "m" __m(((u32 *)(__ptr)) + 1), \
: "m" (__m(__ptr)), "m" __m(((u32 __user *)(__ptr)) + 1), \
"i" (errret), "0" (retval)); \
})

4
arch/x86/include/asm/xen/hypercall.h
Просмотреть файл

@ -551,13 +551,13 @@ static inline void
MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
struct desc_struct desc)
{
u32 *p = (u32 *) &desc;
mcl->op = __HYPERVISOR_update_descriptor;
if (sizeof(maddr) == sizeof(long)) {
mcl->args[0] = maddr;
mcl->args[1] = *(unsigned long *)&desc;
} else {
u32 *p = (u32 *)&desc;
mcl->args[0] = maddr;
mcl->args[1] = maddr >> 32;
mcl->args[2] = *p++;

155
arch/x86/kernel/fpu/core.c
Просмотреть файл

@ -100,7 +100,7 @@ void __kernel_fpu_begin(void)
kernel_fpu_disable();
if (fpu->fpregs_active) {
if (fpu->initialized) {
/*
* Ignore return value -- we don't care if reg state
* is clobbered.
@ -116,7 +116,7 @@ void __kernel_fpu_end(void)
{
struct fpu *fpu = &current->thread.fpu;
if (fpu->fpregs_active)
if (fpu->initialized)
copy_kernel_to_fpregs(&fpu->state);
kernel_fpu_enable();
@ -148,7 +148,7 @@ void fpu__save(struct fpu *fpu)
preempt_disable();
trace_x86_fpu_before_save(fpu);
if (fpu->fpregs_active) {
if (fpu->initialized) {
if (!copy_fpregs_to_fpstate(fpu)) {
copy_kernel_to_fpregs(&fpu->state);
}
@ -189,10 +189,9 @@ EXPORT_SYMBOL_GPL(fpstate_init);
int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
{
dst_fpu->fpregs_active = 0;
dst_fpu->last_cpu = -1;
if (!src_fpu->fpstate_active || !static_cpu_has(X86_FEATURE_FPU))
if (!src_fpu->initialized || !static_cpu_has(X86_FEATURE_FPU))
return 0;
WARN_ON_FPU(src_fpu != &current->thread.fpu);
@ -206,26 +205,14 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
/*
* Save current FPU registers directly into the child
* FPU context, without any memory-to-memory copying.
* In lazy mode, if the FPU context isn't loaded into
* fpregs, CR0.TS will be set and do_device_not_available
* will load the FPU context.
*
* We have to do all this with preemption disabled,
* mostly because of the FNSAVE case, because in that
* case we must not allow preemption in the window
* between the FNSAVE and us marking the context lazy.
*
* It shouldn't be an issue as even FNSAVE is plenty
* fast in terms of critical section length.
* ( The function 'fails' in the FNSAVE case, which destroys
* register contents so we have to copy them back. )
*/
preempt_disable();
if (!copy_fpregs_to_fpstate(dst_fpu)) {
memcpy(&src_fpu->state, &dst_fpu->state,
fpu_kernel_xstate_size);
memcpy(&src_fpu->state, &dst_fpu->state, fpu_kernel_xstate_size);
copy_kernel_to_fpregs(&src_fpu->state);
}
preempt_enable();
trace_x86_fpu_copy_src(src_fpu);
trace_x86_fpu_copy_dst(dst_fpu);
@ -237,45 +224,48 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
* Activate the current task's in-memory FPU context,
* if it has not been used before:
*/
void fpu__activate_curr(struct fpu *fpu)
void fpu__initialize(struct fpu *fpu)
{
WARN_ON_FPU(fpu != &current->thread.fpu);
if (!fpu->fpstate_active) {
if (!fpu->initialized) {
fpstate_init(&fpu->state);
trace_x86_fpu_init_state(fpu);
trace_x86_fpu_activate_state(fpu);
/* Safe to do for the current task: */
fpu->fpstate_active = 1;
fpu->initialized = 1;
}
}
EXPORT_SYMBOL_GPL(fpu__activate_curr);
EXPORT_SYMBOL_GPL(fpu__initialize);
/*
* This function must be called before we read a task's fpstate.
*
* If the task has not used the FPU before then initialize its
* fpstate.
* There's two cases where this gets called:
*
* - for the current task (when coredumping), in which case we have
* to save the latest FPU registers into the fpstate,
*
* - or it's called for stopped tasks (ptrace), in which case the
* registers were already saved by the context-switch code when
* the task scheduled out - we only have to initialize the registers
* if they've never been initialized.
*
* If the task has used the FPU before then save it.
*/
void fpu__activate_fpstate_read(struct fpu *fpu)
void fpu__prepare_read(struct fpu *fpu)
{
/*
* If fpregs are active (in the current CPU), then
* copy them to the fpstate:
*/
if (fpu->fpregs_active) {
if (fpu == &current->thread.fpu) {
fpu__save(fpu);
} else {
if (!fpu->fpstate_active) {
if (!fpu->initialized) {
fpstate_init(&fpu->state);
trace_x86_fpu_init_state(fpu);
trace_x86_fpu_activate_state(fpu);
/* Safe to do for current and for stopped child tasks: */
fpu->fpstate_active = 1;
fpu->initialized = 1;
}
}
}
@ -283,17 +273,17 @@ void fpu__activate_fpstate_read(struct fpu *fpu)
/*
* This function must be called before we write a task's fpstate.
*
* If the task has used the FPU before then unlazy it.
* If the task has used the FPU before then invalidate any cached FPU registers.
* If the task has not used the FPU before then initialize its fpstate.
*
* After this function call, after registers in the fpstate are
* modified and the child task has woken up, the child task will
* restore the modified FPU state from the modified context. If we
* didn't clear its lazy status here then the lazy in-registers
* didn't clear its cached status here then the cached in-registers
* state pending on its former CPU could be restored, corrupting
* the modifications.
*/
void fpu__activate_fpstate_write(struct fpu *fpu)
void fpu__prepare_write(struct fpu *fpu)
{
/*
* Only stopped child tasks can be used to modify the FPU
@ -301,8 +291,8 @@ void fpu__activate_fpstate_write(struct fpu *fpu)
*/
WARN_ON_FPU(fpu == &current->thread.fpu);
if (fpu->fpstate_active) {
/* Invalidate any lazy state: */
if (fpu->initialized) {
/* Invalidate any cached state: */
__fpu_invalidate_fpregs_state(fpu);
} else {
fpstate_init(&fpu->state);
@ -310,73 +300,10 @@ void fpu__activate_fpstate_write(struct fpu *fpu)
trace_x86_fpu_activate_state(fpu);
/* Safe to do for stopped child tasks: */
fpu->fpstate_active = 1;
fpu->initialized = 1;
}
}
/*
* This function must be called before we write the current
* task's fpstate.
*
* This call gets the current FPU register state and moves
* it in to the 'fpstate'. Preemption is disabled so that
* no writes to the 'fpstate' can occur from context
* swiches.
*
* Must be followed by a fpu__current_fpstate_write_end().
*/
void fpu__current_fpstate_write_begin(void)
{
struct fpu *fpu = &current->thread.fpu;
/*
* Ensure that the context-switching code does not write
* over the fpstate while we are doing our update.
*/
preempt_disable();
/*
* Move the fpregs in to the fpu's 'fpstate'.
*/
fpu__activate_fpstate_read(fpu);
/*
* The caller is about to write to 'fpu'. Ensure that no
* CPU thinks that its fpregs match the fpstate. This
* ensures we will not be lazy and skip a XRSTOR in the
* future.
*/
__fpu_invalidate_fpregs_state(fpu);
}
/*
* This function must be paired with fpu__current_fpstate_write_begin()
*
* This will ensure that the modified fpstate gets placed back in
* the fpregs if necessary.
*
* Note: This function may be called whether or not an _actual_
* write to the fpstate occurred.
*/
void fpu__current_fpstate_write_end(void)
{
struct fpu *fpu = &current->thread.fpu;
/*
* 'fpu' now has an updated copy of the state, but the
* registers may still be out of date. Update them with
* an XRSTOR if they are active.
*/
if (fpregs_active())
copy_kernel_to_fpregs(&fpu->state);
/*
* Our update is done and the fpregs/fpstate are in sync
* if necessary. Context switches can happen again.
*/
preempt_enable();
}
/*
* 'fpu__restore()' is called to copy FPU registers from
* the FPU fpstate to the live hw registers and to activate
@ -389,7 +316,7 @@ void fpu__current_fpstate_write_end(void)
*/
void fpu__restore(struct fpu *fpu)
{
fpu__activate_curr(fpu);
fpu__initialize(fpu);
/* Avoid __kernel_fpu_begin() right after fpregs_activate() */
kernel_fpu_disable();
@ -414,15 +341,17 @@ void fpu__drop(struct fpu *fpu)
{
preempt_disable();
if (fpu->fpregs_active) {
/* Ignore delayed exceptions from user space */
asm volatile("1: fwait\n"
"2:\n"
_ASM_EXTABLE(1b, 2b));
fpregs_deactivate(fpu);
if (fpu == &current->thread.fpu) {
if (fpu->initialized) {
/* Ignore delayed exceptions from user space */
asm volatile("1: fwait\n"
"2:\n"
_ASM_EXTABLE(1b, 2b));
fpregs_deactivate(fpu);
}
}
fpu->fpstate_active = 0;
fpu->initialized = 0;
trace_x86_fpu_dropped(fpu);
@ -462,9 +391,11 @@ void fpu__clear(struct fpu *fpu)
* Make sure fpstate is cleared and initialized.
*/
if (static_cpu_has(X86_FEATURE_FPU)) {
fpu__activate_curr(fpu);
preempt_disable();
fpu__initialize(fpu);
user_fpu_begin();
copy_init_fpstate_to_fpregs();
preempt_enable();
}
}

2
arch/x86/kernel/fpu/init.c
Просмотреть файл

@ -240,7 +240,7 @@ static void __init fpu__init_system_ctx_switch(void)
WARN_ON_FPU(!on_boot_cpu);
on_boot_cpu = 0;
WARN_ON_FPU(current->thread.fpu.fpstate_active);
WARN_ON_FPU(current->thread.fpu.initialized);
}
/*

50
arch/x86/kernel/fpu/regset.c
Просмотреть файл

@ -16,14 +16,14 @@ int regset_fpregs_active(struct task_struct *target, const struct user_regset *r
{
struct fpu *target_fpu = &target->thread.fpu;
return target_fpu->fpstate_active ? regset->n : 0;
return target_fpu->initialized ? regset->n : 0;
}
int regset_xregset_fpregs_active(struct task_struct *target, const struct user_regset *regset)
{
struct fpu *target_fpu = &target->thread.fpu;
if (boot_cpu_has(X86_FEATURE_FXSR) && target_fpu->fpstate_active)
if (boot_cpu_has(X86_FEATURE_FXSR) && target_fpu->initialized)
return regset->n;
else
return 0;
@ -38,7 +38,7 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset,
if (!boot_cpu_has(X86_FEATURE_FXSR))
return -ENODEV;
fpu__activate_fpstate_read(fpu);
fpu__prepare_read(fpu);
fpstate_sanitize_xstate(fpu);
return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
@ -55,7 +55,7 @@ int xfpregs_set(struct task_struct *target, const struct user_regset *regset,
if (!boot_cpu_has(X86_FEATURE_FXSR))
return -ENODEV;
fpu__activate_fpstate_write(fpu);
fpu__prepare_write(fpu);
fpstate_sanitize_xstate(fpu);
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
@ -89,10 +89,13 @@ int xstateregs_get(struct task_struct *target, const struct user_regset *regset,
xsave = &fpu->state.xsave;
fpu__activate_fpstate_read(fpu);
fpu__prepare_read(fpu);
if (using_compacted_format()) {
ret = copyout_from_xsaves(pos, count, kbuf, ubuf, xsave);
if (kbuf)
ret = copy_xstate_to_kernel(kbuf, xsave, pos, count);
else
ret = copy_xstate_to_user(ubuf, xsave, pos, count);
} else {
fpstate_sanitize_xstate(fpu);
/*
@ -129,12 +132,23 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset,
xsave = &fpu->state.xsave;
fpu__activate_fpstate_write(fpu);
fpu__prepare_write(fpu);
if (boot_cpu_has(X86_FEATURE_XSAVES))
ret = copyin_to_xsaves(kbuf, ubuf, xsave);
else
if (using_compacted_format()) {
if (kbuf)
ret = copy_kernel_to_xstate(xsave, kbuf);
else
ret = copy_user_to_xstate(xsave, ubuf);
} else {
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, xsave, 0, -1);
if (!ret)
ret = validate_xstate_header(&xsave->header);
}
/*
* mxcsr reserved bits must be masked to zero for security reasons.
*/
xsave->i387.mxcsr &= mxcsr_feature_mask;
/*
* In case of failure, mark all states as init:
@ -142,16 +156,6 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset,
if (ret)
fpstate_init(&fpu->state);
/*
* mxcsr reserved bits must be masked to zero for security reasons.
*/
xsave->i387.mxcsr &= mxcsr_feature_mask;
xsave->header.xfeatures &= xfeatures_mask;
/*
* These bits must be zero.
*/
memset(&xsave->header.reserved, 0, 48);
return ret;
}
@ -299,7 +303,7 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset,
struct fpu *fpu = &target->thread.fpu;
struct user_i387_ia32_struct env;
fpu__activate_fpstate_read(fpu);
fpu__prepare_read(fpu);
if (!boot_cpu_has(X86_FEATURE_FPU))
return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
@ -329,7 +333,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
struct user_i387_ia32_struct env;
int ret;
fpu__activate_fpstate_write(fpu);
fpu__prepare_write(fpu);
fpstate_sanitize_xstate(fpu);
if (!boot_cpu_has(X86_FEATURE_FPU))
@ -369,7 +373,7 @@ int dump_fpu(struct pt_regs *regs, struct user_i387_struct *ufpu)
struct fpu *fpu = &tsk->thread.fpu;
int fpvalid;
fpvalid = fpu->fpstate_active;
fpvalid = fpu->initialized;
if (fpvalid)
fpvalid = !fpregs_get(tsk, NULL,
0, sizeof(struct user_i387_ia32_struct),

37
arch/x86/kernel/fpu/signal.c
Просмотреть файл

@ -155,7 +155,8 @@ static inline int copy_fpregs_to_sigframe(struct xregs_state __user *buf)
*/
int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
{
struct xregs_state *xsave = &current->thread.fpu.state.xsave;
struct fpu *fpu = &current->thread.fpu;
struct xregs_state *xsave = &fpu->state.xsave;
struct task_struct *tsk = current;
int ia32_fxstate = (buf != buf_fx);
@ -170,13 +171,13 @@ int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
sizeof(struct user_i387_ia32_struct), NULL,
(struct _fpstate_32 __user *) buf) ? -1 : 1;
if (fpregs_active() || using_compacted_format()) {
if (fpu->initialized || using_compacted_format()) {
/* Save the live register state to the user directly. */
if (copy_fpregs_to_sigframe(buf_fx))
return -1;
/* Update the thread's fxstate to save the fsave header. */
if (ia32_fxstate)
copy_fxregs_to_kernel(&tsk->thread.fpu);
copy_fxregs_to_kernel(fpu);
} else {
/*
* It is a *bug* if kernel uses compacted-format for xsave
@ -189,7 +190,7 @@ int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
return -1;
}
fpstate_sanitize_xstate(&tsk->thread.fpu);
fpstate_sanitize_xstate(fpu);
if (__copy_to_user(buf_fx, xsave, fpu_user_xstate_size))
return -1;
}
@ -213,8 +214,11 @@ sanitize_restored_xstate(struct task_struct *tsk,
struct xstate_header *header = &xsave->header;
if (use_xsave()) {
/* These bits must be zero. */
memset(header->reserved, 0, 48);
/*
* Note: we don't need to zero the reserved bits in the
* xstate_header here because we either didn't copy them at all,
* or we checked earlier that they aren't set.
*/
/*
* Init the state that is not present in the memory
@ -223,7 +227,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
if (fx_only)
header->xfeatures = XFEATURE_MASK_FPSSE;
else
header->xfeatures &= (xfeatures_mask & xfeatures);
header->xfeatures &= xfeatures;
}
if (use_fxsr()) {
@ -279,7 +283,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
if (!access_ok(VERIFY_READ, buf, size))
return -EACCES;
fpu__activate_curr(fpu);
fpu__initialize(fpu);
if (!static_cpu_has(X86_FEATURE_FPU))
return fpregs_soft_set(current, NULL,
@ -307,28 +311,29 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
/*
* For 32-bit frames with fxstate, copy the user state to the
* thread's fpu state, reconstruct fxstate from the fsave
* header. Sanitize the copied state etc.
* header. Validate and sanitize the copied state.
*/
struct fpu *fpu = &tsk->thread.fpu;
struct user_i387_ia32_struct env;
int err = 0;
/*
* Drop the current fpu which clears fpu->fpstate_active. This ensures
* Drop the current fpu which clears fpu->initialized. This ensures
* that any context-switch during the copy of the new state,
* avoids the intermediate state from getting restored/saved.
* Thus avoiding the new restored state from getting corrupted.
* We will be ready to restore/save the state only after
* fpu->fpstate_active is again set.
* fpu->initialized is again set.
*/
fpu__drop(fpu);
if (using_compacted_format()) {
err = copyin_to_xsaves(NULL, buf_fx,
&fpu->state.xsave);
err = copy_user_to_xstate(&fpu->state.xsave, buf_fx);
} else {
err = __copy_from_user(&fpu->state.xsave,
buf_fx, state_size);
err = __copy_from_user(&fpu->state.xsave, buf_fx, state_size);
if (!err && state_size > offsetof(struct xregs_state, header))
err = validate_xstate_header(&fpu->state.xsave.header);
}
if (err || __copy_from_user(&env, buf, sizeof(env))) {
@ -339,7 +344,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
sanitize_restored_xstate(tsk, &env, xfeatures, fx_only);
}
fpu->fpstate_active = 1;
fpu->initialized = 1;
preempt_disable();
fpu__restore(fpu);
preempt_enable();

282
arch/x86/kernel/fpu/xstate.c
Просмотреть файл

@ -483,6 +483,30 @@ int using_compacted_format(void)
return boot_cpu_has(X86_FEATURE_XSAVES);
}
/* Validate an xstate header supplied by userspace (ptrace or sigreturn) */
int validate_xstate_header(const struct xstate_header *hdr)
{
/* No unknown or supervisor features may be set */
if (hdr->xfeatures & (~xfeatures_mask | XFEATURE_MASK_SUPERVISOR))
return -EINVAL;
/* Userspace must use the uncompacted format */
if (hdr->xcomp_bv)
return -EINVAL;
/*
* If 'reserved' is shrunken to add a new field, make sure to validate
* that new field here!
*/
BUILD_BUG_ON(sizeof(hdr->reserved) != 48);
/* No reserved bits may be set */
if (memchr_inv(hdr->reserved, 0, sizeof(hdr->reserved)))
return -EINVAL;
return 0;
}
static void __xstate_dump_leaves(void)
{
int i;
@ -867,7 +891,7 @@ const void *get_xsave_field_ptr(int xsave_state)
{
struct fpu *fpu = &current->thread.fpu;
if (!fpu->fpstate_active)
if (!fpu->initialized)
return NULL;
/*
* fpu__save() takes the CPU's xstate registers
@ -920,48 +944,55 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
}
#endif /* ! CONFIG_ARCH_HAS_PKEYS */
/*
* Weird legacy quirk: SSE and YMM states store information in the
* MXCSR and MXCSR_FLAGS fields of the FP area. That means if the FP
* area is marked as unused in the xfeatures header, we need to copy
* MXCSR and MXCSR_FLAGS if either SSE or YMM are in use.
*/
static inline bool xfeatures_mxcsr_quirk(u64 xfeatures)
{
if (!(xfeatures & (XFEATURE_MASK_SSE|XFEATURE_MASK_YMM)))
return false;
if (xfeatures & XFEATURE_MASK_FP)
return false;
return true;
}
/*
* This is similar to user_regset_copyout(), but will not add offset to
* the source data pointer or increment pos, count, kbuf, and ubuf.
*/
static inline int xstate_copyout(unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf,
const void *data, const int start_pos,
const int end_pos)
static inline void
__copy_xstate_to_kernel(void *kbuf, const void *data,
unsigned int offset, unsigned int size, unsigned int size_total)
{
if ((count == 0) || (pos < start_pos))
return 0;
if (offset < size_total) {
unsigned int copy = min(size, size_total - offset);
if (end_pos < 0 || pos < end_pos) {
unsigned int copy = (end_pos < 0 ? count : min(count, end_pos - pos));
if (kbuf) {
memcpy(kbuf + pos, data, copy);
} else {
if (__copy_to_user(ubuf + pos, data, copy))
return -EFAULT;
}
memcpy(kbuf + offset, data, copy);
}
return 0;
}
/*
* Convert from kernel XSAVES compacted format to standard format and copy
* to a ptrace buffer. It supports partial copy but pos always starts from
* zero. This is called from xstateregs_get() and there we check the CPU
* has XSAVES.
* to a kernel-space ptrace buffer.
*
* It supports partial copy but pos always starts from zero. This is called
* from xstateregs_get() and there we check the CPU has XSAVES.
*/
int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
void __user *ubuf, struct xregs_state *xsave)
int copy_xstate_to_kernel(void *kbuf, struct xregs_state *xsave, unsigned int offset_start, unsigned int size_total)
{
unsigned int offset, size;
int ret, i;
struct xstate_header header;
int i;
/*
* Currently copy_regset_to_user() starts from pos 0:
*/
if (unlikely(pos != 0))
if (unlikely(offset_start != 0))
return -EFAULT;
/*
@ -977,8 +1008,91 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
offset = offsetof(struct xregs_state, header);
size = sizeof(header);
ret = xstate_copyout(offset, size, kbuf, ubuf, &header, 0, count);
__copy_xstate_to_kernel(kbuf, &header, offset, size, size_total);
for (i = 0; i < XFEATURE_MAX; i++) {
/*
* Copy only in-use xstates:
*/
if ((header.xfeatures >> i) & 1) {
void *src = __raw_xsave_addr(xsave, 1 << i);
offset = xstate_offsets[i];
size = xstate_sizes[i];
/* The next component has to fit fully into the output buffer: */
if (offset + size > size_total)
break;
__copy_xstate_to_kernel(kbuf, src, offset, size, size_total);
}
}
if (xfeatures_mxcsr_quirk(header.xfeatures)) {
offset = offsetof(struct fxregs_state, mxcsr);
size = MXCSR_AND_FLAGS_SIZE;
__copy_xstate_to_kernel(kbuf, &xsave->i387.mxcsr, offset, size, size_total);
}
/*
* Fill xsave->i387.sw_reserved value for ptrace frame:
*/
offset = offsetof(struct fxregs_state, sw_reserved);
size = sizeof(xstate_fx_sw_bytes);
__copy_xstate_to_kernel(kbuf, xstate_fx_sw_bytes, offset, size, size_total);
return 0;
}
static inline int
__copy_xstate_to_user(void __user *ubuf, const void *data, unsigned int offset, unsigned int size, unsigned int size_total)
{
if (!size)
return 0;
if (offset < size_total) {
unsigned int copy = min(size, size_total - offset);
if (__copy_to_user(ubuf + offset, data, copy))
return -EFAULT;
}
return 0;
}
/*
* Convert from kernel XSAVES compacted format to standard format and copy
* to a user-space buffer. It supports partial copy but pos always starts from
* zero. This is called from xstateregs_get() and there we check the CPU
* has XSAVES.
*/
int copy_xstate_to_user(void __user *ubuf, struct xregs_state *xsave, unsigned int offset_start, unsigned int size_total)
{
unsigned int offset, size;
int ret, i;
struct xstate_header header;
/*
* Currently copy_regset_to_user() starts from pos 0:
*/
if (unlikely(offset_start != 0))
return -EFAULT;
/*
* The destination is a ptrace buffer; we put in only user xstates:
*/
memset(&header, 0, sizeof(header));
header.xfeatures = xsave->header.xfeatures;
header.xfeatures &= ~XFEATURE_MASK_SUPERVISOR;
/*
* Copy xregs_state->header:
*/
offset = offsetof(struct xregs_state, header);
size = sizeof(header);
ret = __copy_xstate_to_user(ubuf, &header, offset, size, size_total);
if (ret)
return ret;
@ -992,25 +1106,30 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
offset = xstate_offsets[i];
size = xstate_sizes[i];
ret = xstate_copyout(offset, size, kbuf, ubuf, src, 0, count);
/* The next component has to fit fully into the output buffer: */
if (offset + size > size_total)
break;
ret = __copy_xstate_to_user(ubuf, src, offset, size, size_total);
if (ret)
return ret;
if (offset + size >= count)
break;
}
}
if (xfeatures_mxcsr_quirk(header.xfeatures)) {
offset = offsetof(struct fxregs_state, mxcsr);
size = MXCSR_AND_FLAGS_SIZE;
__copy_xstate_to_user(ubuf, &xsave->i387.mxcsr, offset, size, size_total);
}
/*
* Fill xsave->i387.sw_reserved value for ptrace frame:
*/
offset = offsetof(struct fxregs_state, sw_reserved);
size = sizeof(xstate_fx_sw_bytes);
ret = xstate_copyout(offset, size, kbuf, ubuf, xstate_fx_sw_bytes, 0, count);
ret = __copy_xstate_to_user(ubuf, xstate_fx_sw_bytes, offset, size, size_total);
if (ret)
return ret;
@ -1018,55 +1137,42 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
}
/*
* Convert from a ptrace standard-format buffer to kernel XSAVES format
* and copy to the target thread. This is called from xstateregs_set() and
* there we check the CPU has XSAVES and a whole standard-sized buffer
* exists.
* Convert from a ptrace standard-format kernel buffer to kernel XSAVES format
* and copy to the target thread. This is called from xstateregs_set().
*/
int copyin_to_xsaves(const void *kbuf, const void __user *ubuf,
struct xregs_state *xsave)
int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf)
{
unsigned int offset, size;
int i;
u64 xfeatures;
u64 allowed_features;
struct xstate_header hdr;
offset = offsetof(struct xregs_state, header);
size = sizeof(xfeatures);
size = sizeof(hdr);
if (kbuf) {
memcpy(&xfeatures, kbuf + offset, size);
} else {
if (__copy_from_user(&xfeatures, ubuf + offset, size))
return -EFAULT;
}
memcpy(&hdr, kbuf + offset, size);
/*
* Reject if the user sets any disabled or supervisor features:
*/
allowed_features = xfeatures_mask & ~XFEATURE_MASK_SUPERVISOR;
if (xfeatures & ~allowed_features)
if (validate_xstate_header(&hdr))
return -EINVAL;
for (i = 0; i < XFEATURE_MAX; i++) {
u64 mask = ((u64)1 << i);
if (xfeatures & mask) {
if (hdr.xfeatures & mask) {
void *dst = __raw_xsave_addr(xsave, 1 << i);
offset = xstate_offsets[i];
size = xstate_sizes[i];
if (kbuf) {
memcpy(dst, kbuf + offset, size);
} else {
if (__copy_from_user(dst, ubuf + offset, size))
return -EFAULT;
}
memcpy(dst, kbuf + offset, size);
}
}
if (xfeatures_mxcsr_quirk(hdr.xfeatures)) {
offset = offsetof(struct fxregs_state, mxcsr);
size = MXCSR_AND_FLAGS_SIZE;
memcpy(&xsave->i387.mxcsr, kbuf + offset, size);
}
/*
* The state that came in from userspace was user-state only.
* Mask all the user states out of 'xfeatures':
@ -1076,7 +1182,63 @@ int copyin_to_xsaves(const void *kbuf, const void __user *ubuf,
/*
* Add back in the features that came in from userspace:
*/
xsave->header.xfeatures |= xfeatures;
xsave->header.xfeatures |= hdr.xfeatures;
return 0;
}
/*
* Convert from a ptrace or sigreturn standard-format user-space buffer to
* kernel XSAVES format and copy to the target thread. This is called from
* xstateregs_set(), as well as potentially from the sigreturn() and
* rt_sigreturn() system calls.
*/
int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf)
{
unsigned int offset, size;
int i;
struct xstate_header hdr;
offset = offsetof(struct xregs_state, header);
size = sizeof(hdr);
if (__copy_from_user(&hdr, ubuf + offset, size))
return -EFAULT;
if (validate_xstate_header(&hdr))
return -EINVAL;
for (i = 0; i < XFEATURE_MAX; i++) {
u64 mask = ((u64)1 << i);
if (hdr.xfeatures & mask) {
void *dst = __raw_xsave_addr(xsave, 1 << i);
offset = xstate_offsets[i];
size = xstate_sizes[i];
if (__copy_from_user(dst, ubuf + offset, size))
return -EFAULT;
}
}
if (xfeatures_mxcsr_quirk(hdr.xfeatures)) {
offset = offsetof(struct fxregs_state, mxcsr);
size = MXCSR_AND_FLAGS_SIZE;
if (__copy_from_user(&xsave->i387.mxcsr, ubuf + offset, size))
return -EFAULT;
}
/*
* The state that came in from userspace was user-state only.
* Mask all the user states out of 'xfeatures':
*/
xsave->header.xfeatures &= XFEATURE_MASK_SUPERVISOR;
/*
* Add back in the features that came in from userspace:
*/
xsave->header.xfeatures |= hdr.xfeatures;
return 0;
}

6
arch/x86/kernel/irq_32.c
Просмотреть файл

@ -64,7 +64,7 @@ static void call_on_stack(void *func, void *stack)
static inline void *current_stack(void)
{
return (void *)(current_stack_pointer() & ~(THREAD_SIZE - 1));
return (void *)(current_stack_pointer & ~(THREAD_SIZE - 1));
}
static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
@ -88,7 +88,7 @@ static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
/* Save the next esp at the bottom of the stack */
prev_esp = (u32 *)irqstk;
*prev_esp = current_stack_pointer();
*prev_esp = current_stack_pointer;
if (unlikely(overflow))
call_on_stack(print_stack_overflow, isp);
@ -139,7 +139,7 @@ void do_softirq_own_stack(void)
/* Push the previous esp onto the stack */
prev_esp = (u32 *)irqstk;
*prev_esp = current_stack_pointer();
*prev_esp = current_stack_pointer;
call_on_stack(__do_softirq, isp);
}

2
arch/x86/kernel/ksysfs.c
Просмотреть файл

@ -299,7 +299,7 @@ static int __init create_setup_data_nodes(struct kobject *parent)
return 0;
out_clean_nodes:
for (j = i - 1; j > 0; j--)
for (j = i - 1; j >= 0; j--)
cleanup_setup_data_node(*(kobjp + j));
kfree(kobjp);
out_setup_data_kobj:

3
arch/x86/kernel/kvm.c
Просмотреть файл

@ -140,7 +140,8 @@ void kvm_async_pf_task_wait(u32 token)
n.token = token;
n.cpu = smp_processor_id();
n.halted = is_idle_task(current) || preempt_count() > 1;
n.halted = is_idle_task(current) || preempt_count() > 1 ||
rcu_preempt_depth();
init_swait_queue_head(&n.wq);
hlist_add_head(&n.link, &b->list);
raw_spin_unlock(&b->lock);

6
arch/x86/kernel/signal.c
Просмотреть файл

@ -263,7 +263,7 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
sp = (unsigned long) ka->sa.sa_restorer;
}
if (fpu->fpstate_active) {
if (fpu->initialized) {
sp = fpu__alloc_mathframe(sp, IS_ENABLED(CONFIG_X86_32),
&buf_fx, &math_size);
*fpstate = (void __user *)sp;
@ -279,7 +279,7 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
return (void __user *)-1L;
/* save i387 and extended state */
if (fpu->fpstate_active &&
if (fpu->initialized &&
copy_fpstate_to_sigframe(*fpstate, (void __user *)buf_fx, math_size) < 0)
return (void __user *)-1L;
@ -755,7 +755,7 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs)
/*
* Ensure the signal handler starts with the new fpu state.
*/
if (fpu->fpstate_active)
if (fpu->initialized)
fpu__clear(fpu);
}
signal_setup_done(failed, ksig, stepping);

2
arch/x86/kernel/traps.c
Просмотреть файл

@ -142,7 +142,7 @@ void ist_begin_non_atomic(struct pt_regs *regs)
* from double_fault.
*/
BUG_ON((unsigned long)(current_top_of_stack() -
current_stack_pointer()) >= THREAD_SIZE);
current_stack_pointer) >= THREAD_SIZE);
preempt_enable_no_resched();
}

206
arch/x86/kvm/vmx.c
Просмотреть файл

@ -200,6 +200,8 @@ struct loaded_vmcs {
int cpu;
bool launched;
bool nmi_known_unmasked;
unsigned long vmcs_host_cr3; /* May not match real cr3 */
unsigned long vmcs_host_cr4; /* May not match real cr4 */
struct list_head loaded_vmcss_on_cpu_link;
};
@ -600,8 +602,6 @@ struct vcpu_vmx {
int gs_ldt_reload_needed;
int fs_reload_needed;
u64 msr_host_bndcfgs;
unsigned long vmcs_host_cr3; /* May not match real cr3 */
unsigned long vmcs_host_cr4; /* May not match real cr4 */
} host_state;
struct {
int vm86_active;
@ -2202,46 +2202,44 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
struct pi_desc old, new;
unsigned int dest;
if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
!irq_remapping_cap(IRQ_POSTING_CAP) ||
!kvm_vcpu_apicv_active(vcpu))
/*
* In case of hot-plug or hot-unplug, we may have to undo
* vmx_vcpu_pi_put even if there is no assigned device. And we
* always keep PI.NDST up to date for simplicity: it makes the
* code easier, and CPU migration is not a fast path.
*/
if (!pi_test_sn(pi_desc) && vcpu->cpu == cpu)
return;
/*
* First handle the simple case where no cmpxchg is necessary; just
* allow posting non-urgent interrupts.
*
* If the 'nv' field is POSTED_INTR_WAKEUP_VECTOR, do not change
* PI.NDST: pi_post_block will do it for us and the wakeup_handler
* expects the VCPU to be on the blocked_vcpu_list that matches
* PI.NDST.
*/
if (pi_desc->nv == POSTED_INTR_WAKEUP_VECTOR ||
vcpu->cpu == cpu) {
pi_clear_sn(pi_desc);
return;
}
/* The full case. */
do {
old.control = new.control = pi_desc->control;
/*
* If 'nv' field is POSTED_INTR_WAKEUP_VECTOR, there
* are two possible cases:
* 1. After running 'pre_block', context switch
* happened. For this case, 'sn' was set in
* vmx_vcpu_put(), so we need to clear it here.
* 2. After running 'pre_block', we were blocked,
* and woken up by some other guy. For this case,
* we don't need to do anything, 'pi_post_block'
* will do everything for us. However, we cannot
* check whether it is case #1 or case #2 here
* (maybe, not needed), so we also clear sn here,
* I think it is not a big deal.
*/
if (pi_desc->nv != POSTED_INTR_WAKEUP_VECTOR) {
if (vcpu->cpu != cpu) {
dest = cpu_physical_id(cpu);
dest = cpu_physical_id(cpu);
if (x2apic_enabled())
new.ndst = dest;
else
new.ndst = (dest << 8) & 0xFF00;
}
if (x2apic_enabled())
new.ndst = dest;
else
new.ndst = (dest << 8) & 0xFF00;
/* set 'NV' to 'notification vector' */
new.nv = POSTED_INTR_VECTOR;
}
/* Allow posting non-urgent interrupts */
new.sn = 0;
} while (cmpxchg(&pi_desc->control, old.control,
new.control) != old.control);
} while (cmpxchg64(&pi_desc->control, old.control,
new.control) != old.control);
}
static void decache_tsc_multiplier(struct vcpu_vmx *vmx)
@ -5178,12 +5176,12 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
*/
cr3 = __read_cr3();
vmcs_writel(HOST_CR3, cr3); /* 22.2.3 FIXME: shadow tables */
vmx->host_state.vmcs_host_cr3 = cr3;
vmx->loaded_vmcs->vmcs_host_cr3 = cr3;
/* Save the most likely value for this task's CR4 in the VMCS. */
cr4 = cr4_read_shadow();
vmcs_writel(HOST_CR4, cr4); /* 22.2.3, 22.2.5 */
vmx->host_state.vmcs_host_cr4 = cr4;
vmx->loaded_vmcs->vmcs_host_cr4 = cr4;
vmcs_write16(HOST_CS_SELECTOR, __KERNEL_CS); /* 22.2.4 */
#ifdef CONFIG_X86_64
@ -9273,15 +9271,15 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
vmcs_writel(GUEST_RIP, vcpu->arch.regs[VCPU_REGS_RIP]);
cr3 = __get_current_cr3_fast();
if (unlikely(cr3 != vmx->host_state.vmcs_host_cr3)) {
if (unlikely(cr3 != vmx->loaded_vmcs->vmcs_host_cr3)) {
vmcs_writel(HOST_CR3, cr3);
vmx->host_state.vmcs_host_cr3 = cr3;
vmx->loaded_vmcs->vmcs_host_cr3 = cr3;
}
cr4 = cr4_read_shadow();
if (unlikely(cr4 != vmx->host_state.vmcs_host_cr4)) {
if (unlikely(cr4 != vmx->loaded_vmcs->vmcs_host_cr4)) {
vmcs_writel(HOST_CR4, cr4);
vmx->host_state.vmcs_host_cr4 = cr4;
vmx->loaded_vmcs->vmcs_host_cr4 = cr4;
}
/* When single-stepping over STI and MOV SS, we must clear the
@ -9591,6 +9589,13 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
vmx->msr_ia32_feature_control_valid_bits = FEATURE_CONTROL_LOCKED;
/*
* Enforce invariant: pi_desc.nv is always either POSTED_INTR_VECTOR
* or POSTED_INTR_WAKEUP_VECTOR.
*/
vmx->pi_desc.nv = POSTED_INTR_VECTOR;
vmx->pi_desc.sn = 1;
return &vmx->vcpu;
free_vmcs:
@ -9839,7 +9844,8 @@ static void vmx_inject_page_fault_nested(struct kvm_vcpu *vcpu,
WARN_ON(!is_guest_mode(vcpu));
if (nested_vmx_is_page_fault_vmexit(vmcs12, fault->error_code)) {
if (nested_vmx_is_page_fault_vmexit(vmcs12, fault->error_code) &&
!to_vmx(vcpu)->nested.nested_run_pending) {
vmcs12->vm_exit_intr_error_code = fault->error_code;
nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI,
PF_VECTOR | INTR_TYPE_HARD_EXCEPTION |
@ -11704,6 +11710,37 @@ static void vmx_enable_log_dirty_pt_masked(struct kvm *kvm,
kvm_mmu_clear_dirty_pt_masked(kvm, memslot, offset, mask);
}
static void __pi_post_block(struct kvm_vcpu *vcpu)
{
struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
struct pi_desc old, new;
unsigned int dest;
do {
old.control = new.control = pi_desc->control;
WARN(old.nv != POSTED_INTR_WAKEUP_VECTOR,
"Wakeup handler not enabled while the VCPU is blocked\n");
dest = cpu_physical_id(vcpu->cpu);
if (x2apic_enabled())
new.ndst = dest;
else
new.ndst = (dest << 8) & 0xFF00;
/* set 'NV' to 'notification vector' */
new.nv = POSTED_INTR_VECTOR;
} while (cmpxchg64(&pi_desc->control, old.control,
new.control) != old.control);
if (!WARN_ON_ONCE(vcpu->pre_pcpu == -1)) {
spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
list_del(&vcpu->blocked_vcpu_list);
spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
vcpu->pre_pcpu = -1;
}
}
/*
* This routine does the following things for vCPU which is going
* to be blocked if VT-d PI is enabled.
@ -11719,7 +11756,6 @@ static void vmx_enable_log_dirty_pt_masked(struct kvm *kvm,
*/
static int pi_pre_block(struct kvm_vcpu *vcpu)
{
unsigned long flags;
unsigned int dest;
struct pi_desc old, new;
struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
@ -11729,34 +11765,20 @@ static int pi_pre_block(struct kvm_vcpu *vcpu)
!kvm_vcpu_apicv_active(vcpu))
return 0;
vcpu->pre_pcpu = vcpu->cpu;
spin_lock_irqsave(&per_cpu(blocked_vcpu_on_cpu_lock,
vcpu->pre_pcpu), flags);
list_add_tail(&vcpu->blocked_vcpu_list,
&per_cpu(blocked_vcpu_on_cpu,
vcpu->pre_pcpu));
spin_unlock_irqrestore(&per_cpu(blocked_vcpu_on_cpu_lock,
vcpu->pre_pcpu), flags);
WARN_ON(irqs_disabled());
local_irq_disable();
if (!WARN_ON_ONCE(vcpu->pre_pcpu != -1)) {
vcpu->pre_pcpu = vcpu->cpu;
spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
list_add_tail(&vcpu->blocked_vcpu_list,
&per_cpu(blocked_vcpu_on_cpu,
vcpu->pre_pcpu));
spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
}
do {
old.control = new.control = pi_desc->control;
/*
* We should not block the vCPU if
* an interrupt is posted for it.
*/
if (pi_test_on(pi_desc) == 1) {
spin_lock_irqsave(&per_cpu(blocked_vcpu_on_cpu_lock,
vcpu->pre_pcpu), flags);
list_del(&vcpu->blocked_vcpu_list);
spin_unlock_irqrestore(
&per_cpu(blocked_vcpu_on_cpu_lock,
vcpu->pre_pcpu), flags);
vcpu->pre_pcpu = -1;
return 1;
}
WARN((pi_desc->sn == 1),
"Warning: SN field of posted-interrupts "
"is set before blocking\n");
@ -11778,10 +11800,15 @@ static int pi_pre_block(struct kvm_vcpu *vcpu)
/* set 'NV' to 'wakeup vector' */
new.nv = POSTED_INTR_WAKEUP_VECTOR;
} while (cmpxchg(&pi_desc->control, old.control,
new.control) != old.control);
} while (cmpxchg64(&pi_desc->control, old.control,
new.control) != old.control);
return 0;
/* We should not block the vCPU if an interrupt is posted for it. */
if (pi_test_on(pi_desc) == 1)
__pi_post_block(vcpu);
local_irq_enable();
return (vcpu->pre_pcpu == -1);
}
static int vmx_pre_block(struct kvm_vcpu *vcpu)
@ -11797,44 +11824,13 @@ static int vmx_pre_block(struct kvm_vcpu *vcpu)
static void pi_post_block(struct kvm_vcpu *vcpu)
{
struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
struct pi_desc old, new;
unsigned int dest;
unsigned long flags;
if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
!irq_remapping_cap(IRQ_POSTING_CAP) ||
!kvm_vcpu_apicv_active(vcpu))
if (vcpu->pre_pcpu == -1)
return;
do {
old.control = new.control = pi_desc->control;
dest = cpu_physical_id(vcpu->cpu);
if (x2apic_enabled())
new.ndst = dest;
else
new.ndst = (dest << 8) & 0xFF00;
/* Allow posting non-urgent interrupts */
new.sn = 0;
/* set 'NV' to 'notification vector' */
new.nv = POSTED_INTR_VECTOR;
} while (cmpxchg(&pi_desc->control, old.control,
new.control) != old.control);
if(vcpu->pre_pcpu != -1) {
spin_lock_irqsave(
&per_cpu(blocked_vcpu_on_cpu_lock,
vcpu->pre_pcpu), flags);
list_del(&vcpu->blocked_vcpu_list);
spin_unlock_irqrestore(
&per_cpu(blocked_vcpu_on_cpu_lock,
vcpu->pre_pcpu), flags);
vcpu->pre_pcpu = -1;
}
WARN_ON(irqs_disabled());
local_irq_disable();
__pi_post_block(vcpu);
local_irq_enable();
}
static void vmx_post_block(struct kvm_vcpu *vcpu)

2
arch/x86/kvm/x86.c
Просмотреть файл

@ -7225,7 +7225,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
int r;
sigset_t sigsaved;
fpu__activate_curr(fpu);
fpu__initialize(fpu);
if (vcpu->sigset_active)
sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);

2
arch/x86/math-emu/fpu_entry.c
Просмотреть файл

@ -114,7 +114,7 @@ void math_emulate(struct math_emu_info *info)
struct desc_struct code_descriptor;
struct fpu *fpu = &current->thread.fpu;
fpu__activate_curr(fpu);
fpu__initialize(fpu);
#ifdef RE_ENTRANT_CHECKING
if (emulating) {

24
arch/x86/mm/extable.c
Просмотреть файл

@ -2,6 +2,7 @@
#include <linux/uaccess.h>
#include <linux/sched/debug.h>
#include <asm/fpu/internal.h>
#include <asm/traps.h>
#include <asm/kdebug.h>
@ -78,6 +79,29 @@ bool ex_handler_refcount(const struct exception_table_entry *fixup,
}
EXPORT_SYMBOL_GPL(ex_handler_refcount);
/*
* Handler for when we fail to restore a task's FPU state. We should never get
* here because the FPU state of a task using the FPU (task->thread.fpu.state)
* should always be valid. However, past bugs have allowed userspace to set
* reserved bits in the XSAVE area using PTRACE_SETREGSET or sys_rt_sigreturn().
* These caused XRSTOR to fail when switching to the task, leaking the FPU
* registers of the task previously executing on the CPU. Mitigate this class
* of vulnerability by restoring from the initial state (essentially, zeroing
* out all the FPU registers) if we can't restore from the task's FPU state.
*/
bool ex_handler_fprestore(const struct exception_table_entry *fixup,
struct pt_regs *regs, int trapnr)
{
regs->ip = ex_fixup_addr(fixup);
WARN_ONCE(1, "Bad FPU state detected at %pB, reinitializing FPU registers.",
(void *)instruction_pointer(regs));
__copy_kernel_to_fpregs(&init_fpstate, -1);
return true;
}
EXPORT_SYMBOL_GPL(ex_handler_fprestore);
bool ex_handler_ext(const struct exception_table_entry *fixup,
struct pt_regs *regs, int trapnr)
{

47
arch/x86/mm/fault.c
Просмотреть файл

@ -192,8 +192,7 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
* 6. T1 : reaches here, sees vma_pkey(vma)=5, when we really
* faulted on a pte with its pkey=4.
*/
static void fill_sig_info_pkey(int si_code, siginfo_t *info,
struct vm_area_struct *vma)
static void fill_sig_info_pkey(int si_code, siginfo_t *info, u32 *pkey)
{
/* This is effectively an #ifdef */
if (!boot_cpu_has(X86_FEATURE_OSPKE))
@ -209,7 +208,7 @@ static void fill_sig_info_pkey(int si_code, siginfo_t *info,
* valid VMA, so we should never reach this without a
* valid VMA.
*/
if (!vma) {
if (!pkey) {
WARN_ONCE(1, "PKU fault with no VMA passed in");
info->si_pkey = 0;
return;
@ -219,13 +218,12 @@ static void fill_sig_info_pkey(int si_code, siginfo_t *info,
* absolutely guranteed to be 100% accurate because of
* the race explained above.
*/
info->si_pkey = vma_pkey(vma);
info->si_pkey = *pkey;
}
static void
force_sig_info_fault(int si_signo, int si_code, unsigned long address,
struct task_struct *tsk, struct vm_area_struct *vma,
int fault)
struct task_struct *tsk, u32 *pkey, int fault)
{
unsigned lsb = 0;
siginfo_t info;
@ -240,7 +238,7 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
lsb = PAGE_SHIFT;
info.si_addr_lsb = lsb;
fill_sig_info_pkey(si_code, &info, vma);
fill_sig_info_pkey(si_code, &info, pkey);
force_sig_info(si_signo, &info, tsk);
}
@ -762,8 +760,6 @@ no_context(struct pt_regs *regs, unsigned long error_code,
struct task_struct *tsk = current;
unsigned long flags;
int sig;
/* No context means no VMA to pass down */
struct vm_area_struct *vma = NULL;
/* Are we prepared to handle this kernel fault? */
if (fixup_exception(regs, X86_TRAP_PF)) {
@ -788,7 +784,7 @@ no_context(struct pt_regs *regs, unsigned long error_code,
/* XXX: hwpoison faults will set the wrong code. */
force_sig_info_fault(signal, si_code, address,
tsk, vma, 0);
tsk, NULL, 0);
}
/*
@ -896,8 +892,7 @@ show_signal_msg(struct pt_regs *regs, unsigned long error_code,
static void
__bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
unsigned long address, struct vm_area_struct *vma,
int si_code)
unsigned long address, u32 *pkey, int si_code)
{
struct task_struct *tsk = current;
@ -945,7 +940,7 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
tsk->thread.error_code = error_code;
tsk->thread.trap_nr = X86_TRAP_PF;
force_sig_info_fault(SIGSEGV, si_code, address, tsk, vma, 0);
force_sig_info_fault(SIGSEGV, si_code, address, tsk, pkey, 0);
return;
}
@ -958,9 +953,9 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
static noinline void
bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
unsigned long address, struct vm_area_struct *vma)
unsigned long address, u32 *pkey)
{
__bad_area_nosemaphore(regs, error_code, address, vma, SEGV_MAPERR);
__bad_area_nosemaphore(regs, error_code, address, pkey, SEGV_MAPERR);
}
static void
@ -968,6 +963,10 @@ __bad_area(struct pt_regs *regs, unsigned long error_code,
unsigned long address, struct vm_area_struct *vma, int si_code)
{
struct mm_struct *mm = current->mm;
u32 pkey;
if (vma)
pkey = vma_pkey(vma);
/*
* Something tried to access memory that isn't in our memory map..
@ -975,7 +974,8 @@ __bad_area(struct pt_regs *regs, unsigned long error_code,
*/
up_read(&mm->mmap_sem);
__bad_area_nosemaphore(regs, error_code, address, vma, si_code);
__bad_area_nosemaphore(regs, error_code, address,
(vma) ? &pkey : NULL, si_code);
}
static noinline void
@ -1018,7 +1018,7 @@ bad_area_access_error(struct pt_regs *regs, unsigned long error_code,
static void
do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
struct vm_area_struct *vma, unsigned int fault)
u32 *pkey, unsigned int fault)
{
struct task_struct *tsk = current;
int code = BUS_ADRERR;
@ -1045,13 +1045,12 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
code = BUS_MCEERR_AR;
}
#endif
force_sig_info_fault(SIGBUS, code, address, tsk, vma, fault);
force_sig_info_fault(SIGBUS, code, address, tsk, pkey, fault);
}
static noinline void
mm_fault_error(struct pt_regs *regs, unsigned long error_code,
unsigned long address, struct vm_area_struct *vma,
unsigned int fault)
unsigned long address, u32 *pkey, unsigned int fault)
{
if (fatal_signal_pending(current) && !(error_code & PF_USER)) {
no_context(regs, error_code, address, 0, 0);
@ -1075,9 +1074,9 @@ mm_fault_error(struct pt_regs *regs, unsigned long error_code,
} else {
if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
VM_FAULT_HWPOISON_LARGE))
do_sigbus(regs, error_code, address, vma, fault);
do_sigbus(regs, error_code, address, pkey, fault);
else if (fault & VM_FAULT_SIGSEGV)
bad_area_nosemaphore(regs, error_code, address, vma);
bad_area_nosemaphore(regs, error_code, address, pkey);
else
BUG();
}
@ -1267,6 +1266,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
struct mm_struct *mm;
int fault, major = 0;
unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
u32 pkey;
tsk = current;
mm = tsk->mm;
@ -1467,9 +1467,10 @@ good_area:
return;
}
pkey = vma_pkey(vma);
up_read(&mm->mmap_sem);
if (unlikely(fault & VM_FAULT_ERROR)) {
mm_fault_error(regs, error_code, address, vma, fault);
mm_fault_error(regs, error_code, address, &pkey, fault);
return;
}

2
arch/x86/mm/mem_encrypt.c
Просмотреть файл

@ -10,6 +10,8 @@
* published by the Free Software Foundation.
*/
#define DISABLE_BRANCH_PROFILING
#include <linux/linkage.h>
#include <linux/init.h>
#include <linux/mm.h>

3
arch/x86/mm/pkeys.c
Просмотреть файл

@ -18,7 +18,6 @@
#include <asm/cpufeature.h> /* boot_cpu_has, ... */
#include <asm/mmu_context.h> /* vma_pkey() */
#include <asm/fpu/internal.h> /* fpregs_active() */
int __execute_only_pkey(struct mm_struct *mm)
{
@ -45,7 +44,7 @@ int __execute_only_pkey(struct mm_struct *mm)
*/
preempt_disable();
if (!need_to_set_mm_pkey &&
fpregs_active() &&
current->thread.fpu.initialized &&
!__pkru_allows_read(read_pkru(), execute_only_pkey)) {
preempt_enable();
return execute_only_pkey;

2
arch/x86/mm/tlb.c
Просмотреть файл

@ -191,7 +191,7 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
* mapped in the new pgd, we'll double-fault. Forcibly
* map it.
*/
unsigned int index = pgd_index(current_stack_pointer());
unsigned int index = pgd_index(current_stack_pointer);
pgd_t *pgd = next->pgd + index;
if (unlikely(pgd_none(*pgd)))

13
arch/x86/xen/mmu_pv.c
Просмотреть файл

@ -1238,21 +1238,16 @@ static void __init xen_pagetable_cleanhighmap(void)
* from _brk_limit way up to the max_pfn_mapped (which is the end of
* the ramdisk). We continue on, erasing PMD entries that point to page
* tables - do note that they are accessible at this stage via __va.
* For good measure we also round up to the PMD - which means that if
* As Xen is aligning the memory end to a 4MB boundary, for good
* measure we also round up to PMD_SIZE * 2 - which means that if
* anybody is using __ka address to the initial boot-stack - and try
* to use it - they are going to crash. The xen_start_info has been
* taken care of already in xen_setup_kernel_pagetable. */
addr = xen_start_info->pt_base;
size = roundup(xen_start_info->nr_pt_frames * PAGE_SIZE, PMD_SIZE);
size = xen_start_info->nr_pt_frames * PAGE_SIZE;
xen_cleanhighmap(addr, addr + size);
xen_cleanhighmap(addr, roundup(addr + size, PMD_SIZE * 2));
xen_start_info->pt_base = (unsigned long)__va(__pa(xen_start_info->pt_base));
#ifdef DEBUG
/* This is superfluous and is not necessary, but you know what
* lets do it. The MODULES_VADDR -> MODULES_END should be clear of
* anything at this stage. */
xen_cleanhighmap(MODULES_VADDR, roundup(MODULES_VADDR, PUD_SIZE) - 1);
#endif
}
#endif

3
block/blk-core.c
Просмотреть файл

@ -854,6 +854,9 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
kobject_init(&q->kobj, &blk_queue_ktype);
#ifdef CONFIG_BLK_DEV_IO_TRACE
mutex_init(&q->blk_trace_mutex);
#endif
mutex_init(&q->sysfs_lock);
spin_lock_init(&q->__queue_lock);

1
block/bsg-lib.c
Просмотреть файл

@ -154,7 +154,6 @@ static int bsg_prepare_job(struct device *dev, struct request *req)
failjob_rls_rqst_payload:
kfree(job->request_payload.sg_list);
failjob_rls_job:
kfree(job);
return -ENOMEM;
}

2
block/partition-generic.c
Просмотреть файл

@ -112,7 +112,7 @@ ssize_t part_stat_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hd_struct *p = dev_to_part(dev);
struct request_queue *q = dev_to_disk(dev)->queue;
struct request_queue *q = part_to_disk(p)->queue;
unsigned int inflight[2];
int cpu;

16
drivers/acpi/apei/ghes.c
Просмотреть файл

@ -743,17 +743,19 @@ static int ghes_proc(struct ghes *ghes)
}
ghes_do_proc(ghes, ghes->estatus);
out:
ghes_clear_estatus(ghes);
if (rc == -ENOENT)
return rc;
/*
* GHESv2 type HEST entries introduce support for error acknowledgment,
* so only acknowledge the error if this support is present.
*/
if (is_hest_type_generic_v2(ghes)) {
rc = ghes_ack_error(ghes->generic_v2);
if (rc)
return rc;
}
out:
ghes_clear_estatus(ghes);
if (is_hest_type_generic_v2(ghes))
return ghes_ack_error(ghes->generic_v2);
return rc;
}

7
drivers/base/power/opp/core.c
Просмотреть файл

@ -1581,6 +1581,9 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
opp->available = availability_req;
dev_pm_opp_get(opp);
mutex_unlock(&opp_table->lock);
/* Notify the change of the OPP availability */
if (availability_req)
blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ENABLE,
@ -1589,8 +1592,12 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
blocking_notifier_call_chain(&opp_table->head,
OPP_EVENT_DISABLE, opp);
dev_pm_opp_put(opp);
goto put_table;
unlock:
mutex_unlock(&opp_table->lock);
put_table:
dev_pm_opp_put_opp_table(opp_table);
return r;
}

2
drivers/block/brd.c
Просмотреть файл

@ -342,7 +342,7 @@ static long __brd_direct_access(struct brd_device *brd, pgoff_t pgoff,
if (!brd)
return -ENODEV;
page = brd_insert_page(brd, PFN_PHYS(pgoff) / 512);
page = brd_insert_page(brd, (sector_t)pgoff << PAGE_SECTORS_SHIFT);
if (!page)
return -ENOSPC;
*kaddr = page_address(page);

6
drivers/block/loop.h
Просмотреть файл

@ -67,10 +67,8 @@ struct loop_device {
struct loop_cmd {
struct kthread_work work;
struct request *rq;
union {
bool use_aio; /* use AIO interface to handle I/O */
atomic_t ref; /* only for aio */
};
bool use_aio; /* use AIO interface to handle I/O */
atomic_t ref; /* only for aio */
long ret;
struct kiocb iocb;
struct bio_vec *bvec;

6
drivers/block/nbd.c
Просмотреть файл

@ -1194,6 +1194,12 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode,
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
/* The block layer will pass back some non-nbd ioctls in case we have
* special handling for them, but we don't so just return an error.
*/
if (_IOC_TYPE(cmd) != 0xab)
return -EINVAL;
mutex_lock(&nbd->config_lock);
/* Don't allow ioctl operations on a nbd device that was created with

2
drivers/clocksource/numachip.c
Просмотреть файл

@ -43,7 +43,7 @@ static int numachip2_set_next_event(unsigned long delta, struct clock_event_devi
return 0;
}
static struct clock_event_device numachip2_clockevent = {
static const struct clock_event_device numachip2_clockevent __initconst = {
.name = "numachip2",
.rating = 400,
.set_next_event = numachip2_set_next_event,

4
drivers/cpufreq/cpufreq-dt-platdev.c
Просмотреть файл

@ -118,6 +118,10 @@ static const struct of_device_id blacklist[] __initconst = {
{ .compatible = "sigma,tango4", },
{ .compatible = "ti,am33xx", },
{ .compatible = "ti,am43", },
{ .compatible = "ti,dra7", },
{ }
};

189
drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
Просмотреть файл

@ -636,7 +636,194 @@ static void gfx_v6_0_tiling_mode_table_init(struct amdgpu_device *adev)
NUM_BANKS(ADDR_SURF_2_BANK);
for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++)
WREG32(mmGB_TILE_MODE0 + reg_offset, tilemode[reg_offset]);
} else if (adev->asic_type == CHIP_OLAND || adev->asic_type == CHIP_HAINAN) {
} else if (adev->asic_type == CHIP_OLAND) {
tilemode[0] = MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
tilemode[1] = MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
tilemode[2] = MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
tilemode[3] = MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
tilemode[4] = MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[5] = MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(split_equal_to_row_size) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[6] = MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(split_equal_to_row_size) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[7] = MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(split_equal_to_row_size) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
tilemode[8] = MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
ARRAY_MODE(ARRAY_LINEAR_ALIGNED) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[9] = MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[10] = MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
tilemode[11] = MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[12] = MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[13] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[14] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[15] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[16] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[17] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P4_8x16) |
TILE_SPLIT(split_equal_to_row_size) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[21] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_2) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[22] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
tilemode[23] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[24] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
NUM_BANKS(ADDR_SURF_16_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
tilemode[25] = MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
TILE_SPLIT(ADDR_SURF_TILE_SPLIT_1KB) |
NUM_BANKS(ADDR_SURF_8_BANK) |
BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1);
for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++)
WREG32(mmGB_TILE_MODE0 + reg_offset, tilemode[reg_offset]);
} else if (adev->asic_type == CHIP_HAINAN) {
tilemode[0] = MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
PIPE_CONFIG(ADDR_SURF_P2) |

2
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
Просмотреть файл

@ -892,6 +892,8 @@ static int kfd_ioctl_get_tile_config(struct file *filep,
int err = 0;
dev = kfd_device_by_id(args->gpu_id);
if (!dev)
return -EINVAL;
dev->kfd2kgd->get_tile_config(dev->kgd, &config);

5
drivers/gpu/drm/amd/amdkfd/kfd_events.c
Просмотреть файл

@ -292,7 +292,10 @@ static int create_signal_event(struct file *devkfd,
struct kfd_event *ev)
{
if (p->signal_event_count == KFD_SIGNAL_EVENT_LIMIT) {
pr_warn("Signal event wasn't created because limit was reached\n");
if (!p->signal_event_limit_reached) {
pr_warn("Signal event wasn't created because limit was reached\n");
p->signal_event_limit_reached = true;
}
return -ENOMEM;
}

20
drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
Просмотреть файл

@ -184,7 +184,7 @@ static void uninitialize(struct kernel_queue *kq)
if (kq->queue->properties.type == KFD_QUEUE_TYPE_HIQ)
kq->mqd->destroy_mqd(kq->mqd,
kq->queue->mqd,
false,
KFD_PREEMPT_TYPE_WAVEFRONT_RESET,
QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS,
kq->queue->pipe,
kq->queue->queue);
@ -210,6 +210,11 @@ static int acquire_packet_buffer(struct kernel_queue *kq,
uint32_t wptr, rptr;
unsigned int *queue_address;
/* When rptr == wptr, the buffer is empty.
* When rptr == wptr + 1, the buffer is full.
* It is always rptr that advances to the position of wptr, rather than
* the opposite. So we can only use up to queue_size_dwords - 1 dwords.
*/
rptr = *kq->rptr_kernel;
wptr = *kq->wptr_kernel;
queue_address = (unsigned int *)kq->pq_kernel_addr;
@ -219,11 +224,10 @@ static int acquire_packet_buffer(struct kernel_queue *kq,
pr_debug("wptr: %d\n", wptr);
pr_debug("queue_address 0x%p\n", queue_address);
available_size = (rptr - 1 - wptr + queue_size_dwords) %
available_size = (rptr + queue_size_dwords - 1 - wptr) %
queue_size_dwords;
if (packet_size_in_dwords >= queue_size_dwords ||
packet_size_in_dwords >= available_size) {
if (packet_size_in_dwords > available_size) {
/*
* make sure calling functions know
* acquire_packet_buffer() failed
@ -233,6 +237,14 @@ static int acquire_packet_buffer(struct kernel_queue *kq,
}
if (wptr + packet_size_in_dwords >= queue_size_dwords) {
/* make sure after rolling back to position 0, there is
* still enough space.
*/
if (packet_size_in_dwords >= rptr) {
*buffer_ptr = NULL;
return -ENOMEM;
}
/* fill nops, roll back and start at position 0 */
while (wptr > 0) {
queue_address[wptr] = kq->nop_packet;
wptr = (wptr + 1) % queue_size_dwords;

1
drivers/gpu/drm/amd/amdkfd/kfd_priv.h
Просмотреть файл

@ -521,6 +521,7 @@ struct kfd_process {
struct list_head signal_event_pages;
u32 next_nonsignal_event_id;
size_t signal_event_count;
bool signal_event_limit_reached;
};
/**

3
drivers/gpu/drm/etnaviv/etnaviv_gem.c
Просмотреть файл

@ -551,12 +551,15 @@ static const struct etnaviv_gem_ops etnaviv_gem_shmem_ops = {
void etnaviv_gem_free_object(struct drm_gem_object *obj)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct etnaviv_drm_private *priv = obj->dev->dev_private;
struct etnaviv_vram_mapping *mapping, *tmp;
/* object should not be active */
WARN_ON(is_active(etnaviv_obj));
mutex_lock(&priv->gem_lock);
list_del(&etnaviv_obj->gem_node);
mutex_unlock(&priv->gem_lock);
list_for_each_entry_safe(mapping, tmp, &etnaviv_obj->vram_list,
obj_node) {

6
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
Просмотреть файл

@ -445,8 +445,10 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
cmdbuf->user_size = ALIGN(args->stream_size, 8);
ret = etnaviv_gpu_submit(gpu, submit, cmdbuf);
if (ret == 0)
cmdbuf = NULL;
if (ret)
goto out;
cmdbuf = NULL;
if (args->flags & ETNA_SUBMIT_FENCE_FD_OUT) {
/*

43
drivers/gpu/drm/qxl/qxl_display.c
Просмотреть файл

@ -509,23 +509,25 @@ static void qxl_primary_atomic_update(struct drm_plane *plane,
.y2 = qfb->base.height
};
if (!old_state->fb) {
qxl_io_log(qdev,
"create primary fb: %dx%d,%d,%d\n",
bo->surf.width, bo->surf.height,
bo->surf.stride, bo->surf.format);
qxl_io_create_primary(qdev, 0, bo);
bo->is_primary = true;
return;
} else {
if (old_state->fb) {
qfb_old = to_qxl_framebuffer(old_state->fb);
bo_old = gem_to_qxl_bo(qfb_old->obj);
} else {
bo_old = NULL;
}
if (bo == bo_old)
return;
if (bo_old && bo_old->is_primary) {
qxl_io_destroy_primary(qdev);
bo_old->is_primary = false;
}
bo->is_primary = true;
if (!bo->is_primary) {
qxl_io_create_primary(qdev, 0, bo);
bo->is_primary = true;
}
qxl_draw_dirty_fb(qdev, qfb, bo, 0, 0, &norect, 1, 1);
}
@ -534,13 +536,15 @@ static void qxl_primary_atomic_disable(struct drm_plane *plane,
{
struct qxl_device *qdev = plane->dev->dev_private;
if (old_state->fb)
{ struct qxl_framebuffer *qfb =
if (old_state->fb) {
struct qxl_framebuffer *qfb =
to_qxl_framebuffer(old_state->fb);
struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
qxl_io_destroy_primary(qdev);
bo->is_primary = false;
if (bo->is_primary) {
qxl_io_destroy_primary(qdev);
bo->is_primary = false;
}
}
}
@ -698,14 +702,15 @@ static void qxl_plane_cleanup_fb(struct drm_plane *plane,
struct drm_gem_object *obj;
struct qxl_bo *user_bo;
if (!plane->state->fb) {
/* we never executed prepare_fb, so there's nothing to
if (!old_state->fb) {
/*
* we never executed prepare_fb, so there's nothing to
* unpin.
*/
return;
}
obj = to_qxl_framebuffer(plane->state->fb)->obj;
obj = to_qxl_framebuffer(old_state->fb)->obj;
user_bo = gem_to_qxl_bo(obj);
qxl_bo_unpin(user_bo);
}

2
drivers/gpu/drm/radeon/radeon_device.c
Просмотреть файл

@ -1663,7 +1663,7 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
radeon_agp_suspend(rdev);
pci_save_state(dev->pdev);
if (freeze && rdev->family >= CHIP_CEDAR) {
if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
rdev->asic->asic_reset(rdev, true);
pci_restore_state(dev->pdev);
} else if (suspend) {

2
drivers/gpu/drm/sun4i/Kconfig
Просмотреть файл

@ -26,7 +26,7 @@ config DRM_SUN4I_HDMI_CEC
bool "Allwinner A10 HDMI CEC Support"
depends on DRM_SUN4I_HDMI
select CEC_CORE
depends on CEC_PIN
select CEC_PIN
help
Choose this option if you have an Allwinner SoC with an HDMI
controller and want to use CEC.

2
drivers/gpu/drm/sun4i/sun4i_hdmi.h
Просмотреть файл

@ -15,7 +15,7 @@
#include <drm/drm_connector.h>
#include <drm/drm_encoder.h>
#include <media/cec.h>
#include <media/cec-pin.h>
#define SUN4I_HDMI_CTRL_REG 0x004
#define SUN4I_HDMI_CTRL_ENABLE BIT(31)

2
drivers/gpu/drm/tegra/trace.h
Просмотреть файл

@ -63,6 +63,6 @@ DEFINE_EVENT(register_access, sor_readl,
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/tegra
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>

4
drivers/infiniband/core/security.c
Просмотреть файл

@ -432,8 +432,10 @@ int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev)
atomic_set(&qp->qp_sec->error_list_count, 0);
init_completion(&qp->qp_sec->error_complete);
ret = security_ib_alloc_security(&qp->qp_sec->security);
if (ret)
if (ret) {
kfree(qp->qp_sec);
qp->qp_sec = NULL;
}
return ret;
}

14
drivers/infiniband/core/uverbs_cmd.c
Просмотреть файл

@ -3869,15 +3869,15 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file,
resp.raw_packet_caps = attr.raw_packet_caps;
resp.response_length += sizeof(resp.raw_packet_caps);
if (ucore->outlen < resp.response_length + sizeof(resp.xrq_caps))
if (ucore->outlen < resp.response_length + sizeof(resp.tm_caps))
goto end;
resp.xrq_caps.max_rndv_hdr_size = attr.xrq_caps.max_rndv_hdr_size;
resp.xrq_caps.max_num_tags = attr.xrq_caps.max_num_tags;
resp.xrq_caps.max_ops = attr.xrq_caps.max_ops;
resp.xrq_caps.max_sge = attr.xrq_caps.max_sge;
resp.xrq_caps.flags = attr.xrq_caps.flags;
resp.response_length += sizeof(resp.xrq_caps);
resp.tm_caps.max_rndv_hdr_size = attr.tm_caps.max_rndv_hdr_size;
resp.tm_caps.max_num_tags = attr.tm_caps.max_num_tags;
resp.tm_caps.max_ops = attr.tm_caps.max_ops;
resp.tm_caps.max_sge = attr.tm_caps.max_sge;
resp.tm_caps.flags = attr.tm_caps.flags;
resp.response_length += sizeof(resp.tm_caps);
end:
err = ib_copy_to_udata(ucore, &resp, resp.response_length);
return err;

101
drivers/infiniband/hw/hfi1/chip.c
Просмотреть файл

@ -1066,6 +1066,8 @@ static int read_idle_sma(struct hfi1_devdata *dd, u64 *data);
static int thermal_init(struct hfi1_devdata *dd);
static void update_statusp(struct hfi1_pportdata *ppd, u32 state);
static int wait_phys_link_offline_substates(struct hfi1_pportdata *ppd,
int msecs);
static int wait_logical_linkstate(struct hfi1_pportdata *ppd, u32 state,
int msecs);
static void log_state_transition(struct hfi1_pportdata *ppd, u32 state);
@ -8238,6 +8240,7 @@ static irqreturn_t general_interrupt(int irq, void *data)
u64 regs[CCE_NUM_INT_CSRS];
u32 bit;
int i;
irqreturn_t handled = IRQ_NONE;
this_cpu_inc(*dd->int_counter);
@ -8258,9 +8261,10 @@ static irqreturn_t general_interrupt(int irq, void *data)
for_each_set_bit(bit, (unsigned long *)&regs[0],
CCE_NUM_INT_CSRS * 64) {
is_interrupt(dd, bit);
handled = IRQ_HANDLED;
}
return IRQ_HANDLED;
return handled;
}
static irqreturn_t sdma_interrupt(int irq, void *data)
@ -9413,7 +9417,7 @@ static void set_qsfp_int_n(struct hfi1_pportdata *ppd, u8 enable)
write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_MASK : ASIC_QSFP1_MASK, mask);
}
void reset_qsfp(struct hfi1_pportdata *ppd)
int reset_qsfp(struct hfi1_pportdata *ppd)
{
struct hfi1_devdata *dd = ppd->dd;
u64 mask, qsfp_mask;
@ -9443,6 +9447,13 @@ void reset_qsfp(struct hfi1_pportdata *ppd)
* for alarms and warnings
*/
set_qsfp_int_n(ppd, 1);
/*
* After the reset, AOC transmitters are enabled by default. They need
* to be turned off to complete the QSFP setup before they can be
* enabled again.
*/
return set_qsfp_tx(ppd, 0);
}
static int handle_qsfp_error_conditions(struct hfi1_pportdata *ppd,
@ -10305,6 +10316,7 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
{
struct hfi1_devdata *dd = ppd->dd;
u32 previous_state;
int offline_state_ret;
int ret;
update_lcb_cache(dd);
@ -10326,28 +10338,11 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
ppd->offline_disabled_reason =
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_TRANSIENT);
/*
* Wait for offline transition. It can take a while for
* the link to go down.
*/
ret = wait_physical_linkstate(ppd, PLS_OFFLINE, 10000);
if (ret < 0)
return ret;
/*
* Now in charge of LCB - must be after the physical state is
* offline.quiet and before host_link_state is changed.
*/
set_host_lcb_access(dd);
write_csr(dd, DC_LCB_ERR_EN, ~0ull); /* watch LCB errors */
/* make sure the logical state is also down */
ret = wait_logical_linkstate(ppd, IB_PORT_DOWN, 1000);
if (ret)
force_logical_link_state_down(ppd);
ppd->host_link_state = HLS_LINK_COOLDOWN; /* LCB access allowed */
offline_state_ret = wait_phys_link_offline_substates(ppd, 10000);
if (offline_state_ret < 0)
return offline_state_ret;
/* Disabling AOC transmitters */
if (ppd->port_type == PORT_TYPE_QSFP &&
ppd->qsfp_info.limiting_active &&
qsfp_mod_present(ppd)) {
@ -10364,6 +10359,30 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
}
}
/*
* Wait for the offline.Quiet transition if it hasn't happened yet. It
* can take a while for the link to go down.
*/
if (offline_state_ret != PLS_OFFLINE_QUIET) {
ret = wait_physical_linkstate(ppd, PLS_OFFLINE, 30000);
if (ret < 0)
return ret;
}
/*
* Now in charge of LCB - must be after the physical state is
* offline.quiet and before host_link_state is changed.
*/
set_host_lcb_access(dd);
write_csr(dd, DC_LCB_ERR_EN, ~0ull); /* watch LCB errors */
/* make sure the logical state is also down */
ret = wait_logical_linkstate(ppd, IB_PORT_DOWN, 1000);
if (ret)
force_logical_link_state_down(ppd);
ppd->host_link_state = HLS_LINK_COOLDOWN; /* LCB access allowed */
/*
* The LNI has a mandatory wait time after the physical state
* moves to Offline.Quiet. The wait time may be different
@ -10396,6 +10415,9 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
& (HLS_DN_POLL | HLS_VERIFY_CAP | HLS_GOING_UP)) {
/* went down while attempting link up */
check_lni_states(ppd);
/* The QSFP doesn't need to be reset on LNI failure */
ppd->qsfp_info.reset_needed = 0;
}
/* the active link width (downgrade) is 0 on link down */
@ -12804,6 +12826,39 @@ static int wait_physical_linkstate(struct hfi1_pportdata *ppd, u32 state,
return 0;
}
/*
* wait_phys_link_offline_quiet_substates - wait for any offline substate
* @ppd: port device
* @msecs: the number of milliseconds to wait
*
* Wait up to msecs milliseconds for any offline physical link
* state change to occur.
* Returns 0 if at least one state is reached, otherwise -ETIMEDOUT.
*/
static int wait_phys_link_offline_substates(struct hfi1_pportdata *ppd,
int msecs)
{
u32 read_state;
unsigned long timeout;
timeout = jiffies + msecs_to_jiffies(msecs);
while (1) {
read_state = read_physical_state(ppd->dd);
if ((read_state & 0xF0) == PLS_OFFLINE)
break;
if (time_after(jiffies, timeout)) {
dd_dev_err(ppd->dd,
"timeout waiting for phy link offline.quiet substates. Read state 0x%x, %dms\n",
read_state, msecs);
return -ETIMEDOUT;
}
usleep_range(1950, 2050); /* sleep 2ms-ish */
}
log_state_transition(ppd, read_state);
return read_state;
}
#define CLEAR_STATIC_RATE_CONTROL_SMASK(r) \
(r &= ~SEND_CTXT_CHECK_ENABLE_DISALLOW_PBC_STATIC_RATE_CONTROL_SMASK)

3
drivers/infiniband/hw/hfi1/chip.h
Просмотреть файл

@ -204,6 +204,7 @@
#define PLS_OFFLINE_READY_TO_QUIET_LT 0x92
#define PLS_OFFLINE_REPORT_FAILURE 0x93
#define PLS_OFFLINE_READY_TO_QUIET_BCC 0x94
#define PLS_OFFLINE_QUIET_DURATION 0x95
#define PLS_POLLING 0x20
#define PLS_POLLING_QUIET 0x20
#define PLS_POLLING_ACTIVE 0x21
@ -722,7 +723,7 @@ void handle_link_downgrade(struct work_struct *work);
void handle_link_bounce(struct work_struct *work);
void handle_start_link(struct work_struct *work);
void handle_sma_message(struct work_struct *work);
void reset_qsfp(struct hfi1_pportdata *ppd);
int reset_qsfp(struct hfi1_pportdata *ppd);
void qsfp_event(struct work_struct *work);
void start_freeze_handling(struct hfi1_pportdata *ppd, int flags);
int send_idle_sma(struct hfi1_devdata *dd, u64 message);

20
drivers/infiniband/hw/hfi1/eprom.c
Просмотреть файл

@ -204,7 +204,10 @@ done_asic:
return ret;
}
/* magic character sequence that trails an image */
/* magic character sequence that begins an image */
#define IMAGE_START_MAGIC "APO="
/* magic character sequence that might trail an image */
#define IMAGE_TRAIL_MAGIC "egamiAPO"
/* EPROM file types */
@ -250,6 +253,7 @@ static int read_partition_platform_config(struct hfi1_devdata *dd, void **data,
{
void *buffer;
void *p;
u32 length;
int ret;
buffer = kmalloc(P1_SIZE, GFP_KERNEL);
@ -262,15 +266,21 @@ static int read_partition_platform_config(struct hfi1_devdata *dd, void **data,
return ret;
}
/* scan for image magic that may trail the actual data */
p = strnstr(buffer, IMAGE_TRAIL_MAGIC, P1_SIZE);
if (!p) {
/* config partition is valid only if it starts with IMAGE_START_MAGIC */
if (memcmp(buffer, IMAGE_START_MAGIC, strlen(IMAGE_START_MAGIC))) {
kfree(buffer);
return -ENOENT;
}
/* scan for image magic that may trail the actual data */
p = strnstr(buffer, IMAGE_TRAIL_MAGIC, P1_SIZE);
if (p)
length = p - buffer;
else
length = P1_SIZE;
*data = buffer;
*size = p - buffer;
*size = length;
return 0;
}

41
drivers/infiniband/hw/hfi1/file_ops.c
Просмотреть файл

@ -930,15 +930,8 @@ static int assign_ctxt(struct hfi1_filedata *fd, struct hfi1_user_info *uinfo)
switch (ret) {
case 0:
ret = setup_base_ctxt(fd, uctxt);
if (uctxt->subctxt_cnt) {
/*
* Base context is done (successfully or not), notify
* anybody using a sub-context that is waiting for
* this completion.
*/
clear_bit(HFI1_CTXT_BASE_UNINIT, &uctxt->event_flags);
wake_up(&uctxt->wait);
}
if (ret)
deallocate_ctxt(uctxt);
break;
case 1:
ret = complete_subctxt(fd);
@ -1305,25 +1298,25 @@ static int setup_base_ctxt(struct hfi1_filedata *fd,
/* Now allocate the RcvHdr queue and eager buffers. */
ret = hfi1_create_rcvhdrq(dd, uctxt);
if (ret)
return ret;
goto done;
ret = hfi1_setup_eagerbufs(uctxt);
if (ret)
goto setup_failed;
goto done;
/* If sub-contexts are enabled, do the appropriate setup */
if (uctxt->subctxt_cnt)
ret = setup_subctxt(uctxt);
if (ret)
goto setup_failed;
goto done;
ret = hfi1_alloc_ctxt_rcv_groups(uctxt);
if (ret)
goto setup_failed;
goto done;
ret = init_user_ctxt(fd, uctxt);
if (ret)
goto setup_failed;
goto done;
user_init(uctxt);
@ -1331,12 +1324,22 @@ static int setup_base_ctxt(struct hfi1_filedata *fd,
fd->uctxt = uctxt;
hfi1_rcd_get(uctxt);
return 0;
done:
if (uctxt->subctxt_cnt) {
/*
* On error, set the failed bit so sub-contexts will clean up
* correctly.
*/
if (ret)
set_bit(HFI1_CTXT_BASE_FAILED, &uctxt->event_flags);
setup_failed:
/* Set the failed bit so sub-context init can do the right thing */
set_bit(HFI1_CTXT_BASE_FAILED, &uctxt->event_flags);
deallocate_ctxt(uctxt);
/*
* Base context is done (successfully or not), notify anybody
* using a sub-context that is waiting for this completion.
*/
clear_bit(HFI1_CTXT_BASE_UNINIT, &uctxt->event_flags);
wake_up(&uctxt->wait);
}
return ret;
}

50
drivers/infiniband/hw/hfi1/pcie.c
Просмотреть файл

@ -68,7 +68,7 @@
/*
* Code to adjust PCIe capabilities.
*/
static int tune_pcie_caps(struct hfi1_devdata *);
static void tune_pcie_caps(struct hfi1_devdata *);
/*
* Do all the common PCIe setup and initialization.
@ -351,7 +351,7 @@ int pcie_speeds(struct hfi1_devdata *dd)
*/
int request_msix(struct hfi1_devdata *dd, u32 msireq)
{
int nvec, ret;
int nvec;
nvec = pci_alloc_irq_vectors(dd->pcidev, 1, msireq,
PCI_IRQ_MSIX | PCI_IRQ_LEGACY);
@ -360,12 +360,7 @@ int request_msix(struct hfi1_devdata *dd, u32 msireq)
return nvec;
}
ret = tune_pcie_caps(dd);
if (ret) {
dd_dev_err(dd, "tune_pcie_caps() failed: %d\n", ret);
pci_free_irq_vectors(dd->pcidev);
return ret;
}
tune_pcie_caps(dd);
/* check for legacy IRQ */
if (nvec == 1 && !dd->pcidev->msix_enabled)
@ -502,7 +497,7 @@ uint aspm_mode = ASPM_MODE_DISABLED;
module_param_named(aspm, aspm_mode, uint, S_IRUGO);
MODULE_PARM_DESC(aspm, "PCIe ASPM: 0: disable, 1: enable, 2: dynamic");
static int tune_pcie_caps(struct hfi1_devdata *dd)
static void tune_pcie_caps(struct hfi1_devdata *dd)
{
struct pci_dev *parent;
u16 rc_mpss, rc_mps, ep_mpss, ep_mps;
@ -513,22 +508,14 @@ static int tune_pcie_caps(struct hfi1_devdata *dd)
* Turn on extended tags in DevCtl in case the BIOS has turned it off
* to improve WFR SDMA bandwidth
*/
ret = pcie_capability_read_word(dd->pcidev,
PCI_EXP_DEVCTL, &ectl);
if (ret) {
dd_dev_err(dd, "Unable to read from PCI config\n");
return ret;
}
if (!(ectl & PCI_EXP_DEVCTL_EXT_TAG)) {
ret = pcie_capability_read_word(dd->pcidev, PCI_EXP_DEVCTL, &ectl);
if ((!ret) && !(ectl & PCI_EXP_DEVCTL_EXT_TAG)) {
dd_dev_info(dd, "Enabling PCIe extended tags\n");
ectl |= PCI_EXP_DEVCTL_EXT_TAG;
ret = pcie_capability_write_word(dd->pcidev,
PCI_EXP_DEVCTL, ectl);
if (ret) {
dd_dev_err(dd, "Unable to write to PCI config\n");
return ret;
}
if (ret)
dd_dev_info(dd, "Unable to write to PCI config\n");
}
/* Find out supported and configured values for parent (root) */
parent = dd->pcidev->bus->self;
@ -536,15 +523,22 @@ static int tune_pcie_caps(struct hfi1_devdata *dd)
* The driver cannot perform the tuning if it does not have
* access to the upstream component.
*/
if (!parent)
return -EINVAL;
if (!parent) {
dd_dev_info(dd, "Parent not found\n");
return;
}
if (!pci_is_root_bus(parent->bus)) {
dd_dev_info(dd, "Parent not root\n");
return -EINVAL;
return;
}
if (!pci_is_pcie(parent)) {
dd_dev_info(dd, "Parent is not PCI Express capable\n");
return;
}
if (!pci_is_pcie(dd->pcidev)) {
dd_dev_info(dd, "PCI device is not PCI Express capable\n");
return;
}
if (!pci_is_pcie(parent) || !pci_is_pcie(dd->pcidev))
return -EINVAL;
rc_mpss = parent->pcie_mpss;
rc_mps = ffs(pcie_get_mps(parent)) - 8;
/* Find out supported and configured values for endpoint (us) */
@ -590,8 +584,6 @@ static int tune_pcie_caps(struct hfi1_devdata *dd)
ep_mrrs = max_mrrs;
pcie_set_readrq(dd->pcidev, ep_mrrs);
}
return 0;
}
/* End of PCIe capability tuning */

4
drivers/infiniband/hw/hfi1/platform.c
Просмотреть файл

@ -790,7 +790,9 @@ static int tune_active_qsfp(struct hfi1_pportdata *ppd, u32 *ptr_tx_preset,
* reuse of stale settings established in our previous pass through.
*/
if (ppd->qsfp_info.reset_needed) {
reset_qsfp(ppd);
ret = reset_qsfp(ppd);
if (ret)
return ret;
refresh_qsfp_cache(ppd, &ppd->qsfp_info);
} else {
ppd->qsfp_info.reset_needed = 1;

10
drivers/infiniband/hw/mlx5/main.c
Просмотреть файл

@ -778,13 +778,13 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
}
if (MLX5_CAP_GEN(mdev, tag_matching)) {
props->xrq_caps.max_rndv_hdr_size = MLX5_TM_MAX_RNDV_MSG_SIZE;
props->xrq_caps.max_num_tags =
props->tm_caps.max_rndv_hdr_size = MLX5_TM_MAX_RNDV_MSG_SIZE;
props->tm_caps.max_num_tags =
(1 << MLX5_CAP_GEN(mdev, log_tag_matching_list_sz)) - 1;
props->xrq_caps.flags = IB_TM_CAP_RC;
props->xrq_caps.max_ops =
props->tm_caps.flags = IB_TM_CAP_RC;
props->tm_caps.max_ops =
1 << MLX5_CAP_GEN(mdev, log_max_qp_sz);
props->xrq_caps.max_sge = MLX5_TM_MAX_SGE;
props->tm_caps.max_sge = MLX5_TM_MAX_SGE;
}
if (field_avail(typeof(resp), cqe_comp_caps, uhw->outlen)) {

47
drivers/infiniband/hw/mlx5/mem.c
Просмотреть файл

@ -50,13 +50,9 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
{
unsigned long tmp;
unsigned long m;
int i, k;
u64 base = 0;
int p = 0;
int skip;
int mask;
u64 len;
u64 pfn;
u64 base = ~0, p = 0;
u64 len, pfn;
int i = 0;
struct scatterlist *sg;
int entry;
unsigned long page_shift = umem->page_shift;
@ -76,33 +72,24 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
m = find_first_bit(&tmp, BITS_PER_LONG);
if (max_page_shift)
m = min_t(unsigned long, max_page_shift - page_shift, m);
skip = 1 << m;
mask = skip - 1;
i = 0;
for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
len = sg_dma_len(sg) >> page_shift;
pfn = sg_dma_address(sg) >> page_shift;
for (k = 0; k < len; k++) {
if (!(i & mask)) {
tmp = (unsigned long)pfn;
m = min_t(unsigned long, m, find_first_bit(&tmp, BITS_PER_LONG));
skip = 1 << m;
mask = skip - 1;
base = pfn;
p = 0;
} else {
if (base + p != pfn) {
tmp = (unsigned long)p;
m = find_first_bit(&tmp, BITS_PER_LONG);
skip = 1 << m;
mask = skip - 1;
base = pfn;
p = 0;
}
}
p++;
i++;
if (base + p != pfn) {
/* If either the offset or the new
* base are unaligned update m
*/
tmp = (unsigned long)(pfn | p);
if (!IS_ALIGNED(tmp, 1 << m))
m = find_first_bit(&tmp, BITS_PER_LONG);
base = pfn;
p = 0;
}
p += len;
i += len;
}
if (i) {

27
drivers/infiniband/hw/mlx5/mr.c
Просмотреть файл

@ -47,7 +47,8 @@ enum {
#define MLX5_UMR_ALIGN 2048
static int clean_mr(struct mlx5_ib_mr *mr);
static int clean_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr);
static int dereg_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr);
static int mr_cache_max_order(struct mlx5_ib_dev *dev);
static int unreg_umr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr);
@ -1270,8 +1271,9 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
err = mlx5_ib_update_xlt(mr, 0, ncont, page_shift,
update_xlt_flags);
if (err) {
mlx5_ib_dereg_mr(&mr->ibmr);
dereg_mr(dev, mr);
return ERR_PTR(err);
}
}
@ -1356,7 +1358,7 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
err = mr_umem_get(pd, addr, len, access_flags, &mr->umem,
&npages, &page_shift, &ncont, &order);
if (err < 0) {
clean_mr(mr);
clean_mr(dev, mr);
return err;
}
}
@ -1410,7 +1412,7 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
if (err) {
mlx5_ib_warn(dev, "Failed to rereg UMR\n");
ib_umem_release(mr->umem);
clean_mr(mr);
clean_mr(dev, mr);
return err;
}
}
@ -1469,9 +1471,8 @@ mlx5_free_priv_descs(struct mlx5_ib_mr *mr)
}
}
static int clean_mr(struct mlx5_ib_mr *mr)
static int clean_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
{
struct mlx5_ib_dev *dev = to_mdev(mr->ibmr.device);
int allocated_from_cache = mr->allocated_from_cache;
int err;
@ -1507,10 +1508,8 @@ static int clean_mr(struct mlx5_ib_mr *mr)
return 0;
}
int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
static int dereg_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
{
struct mlx5_ib_dev *dev = to_mdev(ibmr->device);
struct mlx5_ib_mr *mr = to_mmr(ibmr);
int npages = mr->npages;
struct ib_umem *umem = mr->umem;
@ -1539,7 +1538,7 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
}
#endif
clean_mr(mr);
clean_mr(dev, mr);
if (umem) {
ib_umem_release(umem);
@ -1549,6 +1548,14 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
return 0;
}
int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
{
struct mlx5_ib_dev *dev = to_mdev(ibmr->device);
struct mlx5_ib_mr *mr = to_mmr(ibmr);
return dereg_mr(dev, mr);
}
struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd,
enum ib_mr_type mr_type,
u32 max_num_sg)

4
drivers/infiniband/hw/nes/nes_verbs.c
Просмотреть файл

@ -3232,7 +3232,7 @@ static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
mr->ibmr.iova);
set_wqe_32bit_value(wqe->wqe_words,
NES_IWARP_SQ_FMR_WQE_LENGTH_LOW_IDX,
mr->ibmr.length);
lower_32_bits(mr->ibmr.length));
set_wqe_32bit_value(wqe->wqe_words,
NES_IWARP_SQ_FMR_WQE_LENGTH_HIGH_IDX, 0);
set_wqe_32bit_value(wqe->wqe_words,
@ -3274,7 +3274,7 @@ static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
mr->npages * 8);
nes_debug(NES_DBG_IW_TX, "SQ_REG_MR: iova_start: %llx, "
"length: %d, rkey: %0x, pgl_paddr: %llx, "
"length: %lld, rkey: %0x, pgl_paddr: %llx, "
"page_list_len: %u, wqe_misc: %x\n",
(unsigned long long) mr->ibmr.iova,
mr->ibmr.length,

13
drivers/infiniband/ulp/ipoib/ipoib_ib.c
Просмотреть файл

@ -1000,19 +1000,6 @@ static inline int update_parent_pkey(struct ipoib_dev_priv *priv)
*/
priv->dev->broadcast[8] = priv->pkey >> 8;
priv->dev->broadcast[9] = priv->pkey & 0xff;
/*
* Update the broadcast address in the priv->broadcast object,
* in case it already exists, otherwise no one will do that.
*/
if (priv->broadcast) {
spin_lock_irq(&priv->lock);
memcpy(priv->broadcast->mcmember.mgid.raw,
priv->dev->broadcast + 4,
sizeof(union ib_gid));
spin_unlock_irq(&priv->lock);
}
return 0;
}

15
drivers/infiniband/ulp/ipoib/ipoib_main.c
Просмотреть файл

@ -2180,6 +2180,7 @@ static struct net_device *ipoib_add_port(const char *format,
{
struct ipoib_dev_priv *priv;
struct ib_port_attr attr;
struct rdma_netdev *rn;
int result = -ENOMEM;
priv = ipoib_intf_alloc(hca, port, format);
@ -2279,7 +2280,8 @@ register_failed:
ipoib_dev_cleanup(priv->dev);
device_init_failed:
free_netdev(priv->dev);
rn = netdev_priv(priv->dev);
rn->free_rdma_netdev(priv->dev);
kfree(priv);
alloc_mem_failed:
@ -2328,7 +2330,7 @@ static void ipoib_remove_one(struct ib_device *device, void *client_data)
return;
list_for_each_entry_safe(priv, tmp, dev_list, list) {
struct rdma_netdev *rn = netdev_priv(priv->dev);
struct rdma_netdev *parent_rn = netdev_priv(priv->dev);
ib_unregister_event_handler(&priv->event_handler);
flush_workqueue(ipoib_workqueue);
@ -2350,10 +2352,15 @@ static void ipoib_remove_one(struct ib_device *device, void *client_data)
unregister_netdev(priv->dev);
mutex_unlock(&priv->sysfs_mutex);
rn->free_rdma_netdev(priv->dev);
parent_rn->free_rdma_netdev(priv->dev);
list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list)
list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) {
struct rdma_netdev *child_rn;
child_rn = netdev_priv(cpriv->dev);
child_rn->free_rdma_netdev(cpriv->dev);
kfree(cpriv);
}
kfree(priv);
}

30
drivers/infiniband/ulp/ipoib/ipoib_vlan.c
Просмотреть файл

@ -141,14 +141,17 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
return restart_syscall();
}
priv = ipoib_intf_alloc(ppriv->ca, ppriv->port, intf_name);
if (!priv) {
if (!down_write_trylock(&ppriv->vlan_rwsem)) {
rtnl_unlock();
mutex_unlock(&ppriv->sysfs_mutex);
return -ENOMEM;
return restart_syscall();
}
down_write(&ppriv->vlan_rwsem);
priv = ipoib_intf_alloc(ppriv->ca, ppriv->port, intf_name);
if (!priv) {
result = -ENOMEM;
goto out;
}
/*
* First ensure this isn't a duplicate. We check the parent device and
@ -175,8 +178,11 @@ out:
rtnl_unlock();
mutex_unlock(&ppriv->sysfs_mutex);
if (result) {
free_netdev(priv->dev);
if (result && priv) {
struct rdma_netdev *rn;
rn = netdev_priv(priv->dev);
rn->free_rdma_netdev(priv->dev);
kfree(priv);
}
@ -204,7 +210,12 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
return restart_syscall();
}
down_write(&ppriv->vlan_rwsem);
if (!down_write_trylock(&ppriv->vlan_rwsem)) {
rtnl_unlock();
mutex_unlock(&ppriv->sysfs_mutex);
return restart_syscall();
}
list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
if (priv->pkey == pkey &&
priv->child_type == IPOIB_LEGACY_CHILD) {
@ -224,7 +235,10 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
mutex_unlock(&ppriv->sysfs_mutex);
if (dev) {
free_netdev(dev);
struct rdma_netdev *rn;
rn = netdev_priv(dev);
rn->free_rdma_netdev(priv->dev);
kfree(priv);
return 0;
}

2
drivers/infiniband/ulp/iser/iser_memory.c
Просмотреть файл

@ -154,7 +154,7 @@ static void iser_dump_page_vec(struct iser_page_vec *page_vec)
{
int i;
iser_err("page vec npages %d data length %d\n",
iser_err("page vec npages %d data length %lld\n",
page_vec->npages, page_vec->fake_mr.length);
for (i = 0; i < page_vec->npages; i++)
iser_err("vec[%d]: %llx\n", i, page_vec->pages[i]);

8
drivers/iommu/amd_iommu_init.c
Просмотреть файл

@ -874,7 +874,7 @@ static bool copy_device_table(void)
hi = readl(iommu->mmio_base + MMIO_DEV_TABLE_OFFSET + 4);
entry = (((u64) hi) << 32) + lo;
if (last_entry && last_entry != entry) {
pr_err("IOMMU:%d should use the same dev table as others!/n",
pr_err("IOMMU:%d should use the same dev table as others!\n",
iommu->index);
return false;
}
@ -882,7 +882,7 @@ static bool copy_device_table(void)
old_devtb_size = ((entry & ~PAGE_MASK) + 1) << 12;
if (old_devtb_size != dev_table_size) {
pr_err("The device table size of IOMMU:%d is not expected!/n",
pr_err("The device table size of IOMMU:%d is not expected!\n",
iommu->index);
return false;
}
@ -890,7 +890,7 @@ static bool copy_device_table(void)
old_devtb_phys = entry & PAGE_MASK;
if (old_devtb_phys >= 0x100000000ULL) {
pr_err("The address of old device table is above 4G, not trustworthy!/n");
pr_err("The address of old device table is above 4G, not trustworthy!\n");
return false;
}
old_devtb = memremap(old_devtb_phys, dev_table_size, MEMREMAP_WB);
@ -901,7 +901,7 @@ static bool copy_device_table(void)
old_dev_tbl_cpy = (void *)__get_free_pages(gfp_flag,
get_order(dev_table_size));
if (old_dev_tbl_cpy == NULL) {
pr_err("Failed to allocate memory for copying old device table!/n");
pr_err("Failed to allocate memory for copying old device table!\n");
return false;
}

2
drivers/iommu/io-pgtable-arm-v7s.c
Просмотреть файл

@ -245,7 +245,7 @@ static void __arm_v7s_free_table(void *table, int lvl,
static void __arm_v7s_pte_sync(arm_v7s_iopte *ptep, int num_entries,
struct io_pgtable_cfg *cfg)
{
if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA))
if (cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)
return;
dma_sync_single_for_device(cfg->iommu_dev, __arm_v7s_dma_addr(ptep),

3
drivers/iommu/mtk_iommu.c
Просмотреть файл

@ -371,7 +371,8 @@ static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova,
int ret;
spin_lock_irqsave(&dom->pgtlock, flags);
ret = dom->iop->map(dom->iop, iova, paddr, size, prot);
ret = dom->iop->map(dom->iop, iova, paddr & DMA_BIT_MASK(32),
size, prot);
spin_unlock_irqrestore(&dom->pgtlock, flags);
return ret;

18
drivers/irqchip/irq-gic-v3-its.c
Просмотреть файл

@ -1008,9 +1008,15 @@ static void lpi_write_config(struct irq_data *d, u8 clr, u8 set)
if (irqd_is_forwarded_to_vcpu(d)) {
struct its_device *its_dev = irq_data_get_irq_chip_data(d);
u32 event = its_get_event_id(d);
struct its_vlpi_map *map;
prop_page = its_dev->event_map.vm->vprop_page;
hwirq = its_dev->event_map.vlpi_maps[event].vintid;
map = &its_dev->event_map.vlpi_maps[event];
hwirq = map->vintid;
/* Remember the updated property */
map->properties &= ~clr;
map->properties |= set | LPI_PROP_GROUP1;
} else {
prop_page = gic_rdists->prop_page;
hwirq = d->hwirq;
@ -1249,12 +1255,20 @@ static int its_vlpi_map(struct irq_data *d, struct its_cmd_info *info)
/* Ensure all the VPEs are mapped on this ITS */
its_map_vm(its_dev->its, info->map->vm);
/*
* Flag the interrupt as forwarded so that we can
* start poking the virtual property table.
*/
irqd_set_forwarded_to_vcpu(d);
/* Write out the property to the prop table */
lpi_write_config(d, 0xff, info->map->properties);
/* Drop the physical mapping */
its_send_discard(its_dev, event);
/* and install the virtual one */
its_send_vmapti(its_dev, event);
irqd_set_forwarded_to_vcpu(d);
/* Increment the number of VLPIs */
its_dev->event_map.nr_vlpis++;

71
drivers/irqchip/irq-gic.c
Просмотреть файл

@ -1256,6 +1256,19 @@ static void gic_teardown(struct gic_chip_data *gic)
#ifdef CONFIG_OF
static int gic_cnt __initdata;
static bool gicv2_force_probe;
static int __init gicv2_force_probe_cfg(char *buf)
{
return strtobool(buf, &gicv2_force_probe);
}
early_param("irqchip.gicv2_force_probe", gicv2_force_probe_cfg);
static bool gic_check_gicv2(void __iomem *base)
{
u32 val = readl_relaxed(base + GIC_CPU_IDENT);
return (val & 0xff0fff) == 0x02043B;
}
static bool gic_check_eoimode(struct device_node *node, void __iomem **base)
{
@ -1265,20 +1278,60 @@ static bool gic_check_eoimode(struct device_node *node, void __iomem **base)
if (!is_hyp_mode_available())
return false;
if (resource_size(&cpuif_res) < SZ_8K)
return false;
if (resource_size(&cpuif_res) == SZ_128K) {
u32 val_low, val_high;
if (resource_size(&cpuif_res) < SZ_8K) {
void __iomem *alt;
/*
* Check for a stupid firmware that only exposes the
* first page of a GICv2.
*/
if (!gic_check_gicv2(*base))
return false;
if (!gicv2_force_probe) {
pr_warn("GIC: GICv2 detected, but range too small and irqchip.gicv2_force_probe not set\n");
return false;
}
alt = ioremap(cpuif_res.start, SZ_8K);
if (!alt)
return false;
if (!gic_check_gicv2(alt + SZ_4K)) {
/*
* The first page was that of a GICv2, and
* the second was *something*. Let's trust it
* to be a GICv2, and update the mapping.
*/
pr_warn("GIC: GICv2 at %pa, but range is too small (broken DT?), assuming 8kB\n",
&cpuif_res.start);
iounmap(*base);
*base = alt;
return true;
}
/*
* Verify that we have the first 4kB of a GIC400
* We detected *two* initial GICv2 pages in a
* row. Could be a GICv2 aliased over two 64kB
* pages. Update the resource, map the iospace, and
* pray.
*/
iounmap(alt);
alt = ioremap(cpuif_res.start, SZ_128K);
if (!alt)
return false;
pr_warn("GIC: Aliased GICv2 at %pa, trying to find the canonical range over 128kB\n",
&cpuif_res.start);
cpuif_res.end = cpuif_res.start + SZ_128K -1;
iounmap(*base);
*base = alt;
}
if (resource_size(&cpuif_res) == SZ_128K) {
/*
* Verify that we have the first 4kB of a GICv2
* aliased over the first 64kB by checking the
* GICC_IIDR register on both ends.
*/
val_low = readl_relaxed(*base + GIC_CPU_IDENT);
val_high = readl_relaxed(*base + GIC_CPU_IDENT + 0xf000);
if ((val_low & 0xffff0fff) != 0x0202043B ||
val_low != val_high)
if (!gic_check_gicv2(*base) ||
!gic_check_gicv2(*base + 0xf000))
return false;
/*

5
drivers/irqchip/irq-meson-gpio.c
Просмотреть файл

@ -47,6 +47,10 @@ struct meson_gpio_irq_params {
unsigned int nr_hwirq;
};
static const struct meson_gpio_irq_params meson8_params = {
.nr_hwirq = 134,
};
static const struct meson_gpio_irq_params meson8b_params = {
.nr_hwirq = 119,
};
@ -60,6 +64,7 @@ static const struct meson_gpio_irq_params gxl_params = {
};
static const struct of_device_id meson_irq_gpio_matches[] = {
{ .compatible = "amlogic,meson8-gpio-intc", .data = &meson8_params },
{ .compatible = "amlogic,meson8b-gpio-intc", .data = &meson8b_params },
{ .compatible = "amlogic,meson-gxbb-gpio-intc", .data = &gxbb_params },
{ .compatible = "amlogic,meson-gxl-gpio-intc", .data = &gxl_params },

224
drivers/irqchip/irq-mips-gic.c
Просмотреть файл

@ -8,6 +8,7 @@
*/
#include <linux/bitmap.h>
#include <linux/clocksource.h>
#include <linux/cpuhotplug.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
@ -48,12 +49,16 @@ static DEFINE_SPINLOCK(gic_lock);
static struct irq_domain *gic_irq_domain;
static struct irq_domain *gic_ipi_domain;
static int gic_shared_intrs;
static int gic_vpes;
static unsigned int gic_cpu_pin;
static unsigned int timer_cpu_pin;
static struct irq_chip gic_level_irq_controller, gic_edge_irq_controller;
DECLARE_BITMAP(ipi_resrv, GIC_MAX_INTRS);
DECLARE_BITMAP(ipi_available, GIC_MAX_INTRS);
static DECLARE_BITMAP(ipi_resrv, GIC_MAX_INTRS);
static DECLARE_BITMAP(ipi_available, GIC_MAX_INTRS);
static struct gic_all_vpes_chip_data {
u32 map;
bool mask;
} gic_all_vpes_chip_data[GIC_NUM_LOCAL_INTRS];
static void gic_clear_pcpu_masks(unsigned int intr)
{
@ -175,14 +180,13 @@ static void gic_mask_irq(struct irq_data *d)
static void gic_unmask_irq(struct irq_data *d)
{
struct cpumask *affinity = irq_data_get_affinity_mask(d);
unsigned int intr = GIC_HWIRQ_TO_SHARED(d->hwirq);
unsigned int cpu;
write_gic_smask(intr);
gic_clear_pcpu_masks(intr);
cpu = cpumask_first_and(affinity, cpu_online_mask);
cpu = cpumask_first(irq_data_get_effective_affinity_mask(d));
set_bit(intr, per_cpu_ptr(pcpu_masks, cpu));
}
@ -195,46 +199,46 @@ static void gic_ack_irq(struct irq_data *d)
static int gic_set_type(struct irq_data *d, unsigned int type)
{
unsigned int irq = GIC_HWIRQ_TO_SHARED(d->hwirq);
unsigned int irq, pol, trig, dual;
unsigned long flags;
bool is_edge;
irq = GIC_HWIRQ_TO_SHARED(d->hwirq);
spin_lock_irqsave(&gic_lock, flags);
switch (type & IRQ_TYPE_SENSE_MASK) {
case IRQ_TYPE_EDGE_FALLING:
change_gic_pol(irq, GIC_POL_FALLING_EDGE);
change_gic_trig(irq, GIC_TRIG_EDGE);
change_gic_dual(irq, GIC_DUAL_SINGLE);
is_edge = true;
pol = GIC_POL_FALLING_EDGE;
trig = GIC_TRIG_EDGE;
dual = GIC_DUAL_SINGLE;
break;
case IRQ_TYPE_EDGE_RISING:
change_gic_pol(irq, GIC_POL_RISING_EDGE);
change_gic_trig(irq, GIC_TRIG_EDGE);
change_gic_dual(irq, GIC_DUAL_SINGLE);
is_edge = true;
pol = GIC_POL_RISING_EDGE;
trig = GIC_TRIG_EDGE;
dual = GIC_DUAL_SINGLE;
break;
case IRQ_TYPE_EDGE_BOTH:
/* polarity is irrelevant in this case */
change_gic_trig(irq, GIC_TRIG_EDGE);
change_gic_dual(irq, GIC_DUAL_DUAL);
is_edge = true;
pol = 0; /* Doesn't matter */
trig = GIC_TRIG_EDGE;
dual = GIC_DUAL_DUAL;
break;
case IRQ_TYPE_LEVEL_LOW:
change_gic_pol(irq, GIC_POL_ACTIVE_LOW);
change_gic_trig(irq, GIC_TRIG_LEVEL);
change_gic_dual(irq, GIC_DUAL_SINGLE);
is_edge = false;
pol = GIC_POL_ACTIVE_LOW;
trig = GIC_TRIG_LEVEL;
dual = GIC_DUAL_SINGLE;
break;
case IRQ_TYPE_LEVEL_HIGH:
default:
change_gic_pol(irq, GIC_POL_ACTIVE_HIGH);
change_gic_trig(irq, GIC_TRIG_LEVEL);
change_gic_dual(irq, GIC_DUAL_SINGLE);
is_edge = false;
pol = GIC_POL_ACTIVE_HIGH;
trig = GIC_TRIG_LEVEL;
dual = GIC_DUAL_SINGLE;
break;
}
if (is_edge)
change_gic_pol(irq, pol);
change_gic_trig(irq, trig);
change_gic_dual(irq, dual);
if (trig == GIC_TRIG_EDGE)
irq_set_chip_handler_name_locked(d, &gic_edge_irq_controller,
handle_edge_irq, NULL);
else
@ -339,13 +343,17 @@ static struct irq_chip gic_local_irq_controller = {
static void gic_mask_local_irq_all_vpes(struct irq_data *d)
{
int intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
int i;
struct gic_all_vpes_chip_data *cd;
unsigned long flags;
int intr, cpu;
intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
cd = irq_data_get_irq_chip_data(d);
cd->mask = false;
spin_lock_irqsave(&gic_lock, flags);
for (i = 0; i < gic_vpes; i++) {
write_gic_vl_other(mips_cm_vp_id(i));
for_each_online_cpu(cpu) {
write_gic_vl_other(mips_cm_vp_id(cpu));
write_gic_vo_rmask(BIT(intr));
}
spin_unlock_irqrestore(&gic_lock, flags);
@ -353,22 +361,40 @@ static void gic_mask_local_irq_all_vpes(struct irq_data *d)
static void gic_unmask_local_irq_all_vpes(struct irq_data *d)
{
int intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
int i;
struct gic_all_vpes_chip_data *cd;
unsigned long flags;
int intr, cpu;
intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
cd = irq_data_get_irq_chip_data(d);
cd->mask = true;
spin_lock_irqsave(&gic_lock, flags);
for (i = 0; i < gic_vpes; i++) {
write_gic_vl_other(mips_cm_vp_id(i));
for_each_online_cpu(cpu) {
write_gic_vl_other(mips_cm_vp_id(cpu));
write_gic_vo_smask(BIT(intr));
}
spin_unlock_irqrestore(&gic_lock, flags);
}
static void gic_all_vpes_irq_cpu_online(struct irq_data *d)
{
struct gic_all_vpes_chip_data *cd;
unsigned int intr;
intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
cd = irq_data_get_irq_chip_data(d);
write_gic_vl_map(intr, cd->map);
if (cd->mask)
write_gic_vl_smask(BIT(intr));
}
static struct irq_chip gic_all_vpes_local_irq_controller = {
.name = "MIPS GIC Local",
.irq_mask = gic_mask_local_irq_all_vpes,
.irq_unmask = gic_unmask_local_irq_all_vpes,
.name = "MIPS GIC Local",
.irq_mask = gic_mask_local_irq_all_vpes,
.irq_unmask = gic_unmask_local_irq_all_vpes,
.irq_cpu_online = gic_all_vpes_irq_cpu_online,
};
static void __gic_irq_dispatch(void)
@ -383,50 +409,21 @@ static void gic_irq_dispatch(struct irq_desc *desc)
gic_handle_shared_int(true);
}
static int gic_local_irq_domain_map(struct irq_domain *d, unsigned int virq,
irq_hw_number_t hw)
{
int intr = GIC_HWIRQ_TO_LOCAL(hw);
int i;
unsigned long flags;
u32 val;
if (!gic_local_irq_is_routable(intr))
return -EPERM;
if (intr > GIC_LOCAL_INT_FDC) {
pr_err("Invalid local IRQ %d\n", intr);
return -EINVAL;
}
if (intr == GIC_LOCAL_INT_TIMER) {
/* CONFIG_MIPS_CMP workaround (see __gic_init) */
val = GIC_MAP_PIN_MAP_TO_PIN | timer_cpu_pin;
} else {
val = GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin;
}
spin_lock_irqsave(&gic_lock, flags);
for (i = 0; i < gic_vpes; i++) {
write_gic_vl_other(mips_cm_vp_id(i));
write_gic_vo_map(intr, val);
}
spin_unlock_irqrestore(&gic_lock, flags);
return 0;
}
static int gic_shared_irq_domain_map(struct irq_domain *d, unsigned int virq,
irq_hw_number_t hw, unsigned int cpu)
{
int intr = GIC_HWIRQ_TO_SHARED(hw);
struct irq_data *data;
unsigned long flags;
data = irq_get_irq_data(virq);
spin_lock_irqsave(&gic_lock, flags);
write_gic_map_pin(intr, GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin);
write_gic_map_vp(intr, BIT(mips_cm_vp_id(cpu)));
gic_clear_pcpu_masks(intr);
set_bit(intr, per_cpu_ptr(pcpu_masks, cpu));
irq_data_update_effective_affinity(data, cpumask_of(cpu));
spin_unlock_irqrestore(&gic_lock, flags);
return 0;
@ -454,7 +451,11 @@ static int gic_irq_domain_xlate(struct irq_domain *d, struct device_node *ctrlr,
static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
irq_hw_number_t hwirq)
{
int err;
struct gic_all_vpes_chip_data *cd;
unsigned long flags;
unsigned int intr;
int err, cpu;
u32 map;
if (hwirq >= GIC_SHARED_HWIRQ_BASE) {
/* verify that shared irqs don't conflict with an IPI irq */
@ -471,8 +472,14 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
return gic_shared_irq_domain_map(d, virq, hwirq, 0);
}
switch (GIC_HWIRQ_TO_LOCAL(hwirq)) {
intr = GIC_HWIRQ_TO_LOCAL(hwirq);
map = GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin;
switch (intr) {
case GIC_LOCAL_INT_TIMER:
/* CONFIG_MIPS_CMP workaround (see __gic_init) */
map = GIC_MAP_PIN_MAP_TO_PIN | timer_cpu_pin;
/* fall-through */
case GIC_LOCAL_INT_PERFCTR:
case GIC_LOCAL_INT_FDC:
/*
@ -480,9 +487,11 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
* the rest of the MIPS kernel code does not use the
* percpu IRQ API for them.
*/
cd = &gic_all_vpes_chip_data[intr];
cd->map = map;
err = irq_domain_set_hwirq_and_chip(d, virq, hwirq,
&gic_all_vpes_local_irq_controller,
NULL);
cd);
if (err)
return err;
@ -501,7 +510,17 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
break;
}
return gic_local_irq_domain_map(d, virq, hwirq);
if (!gic_local_irq_is_routable(intr))
return -EPERM;
spin_lock_irqsave(&gic_lock, flags);
for_each_online_cpu(cpu) {
write_gic_vl_other(mips_cm_vp_id(cpu));
write_gic_vo_map(intr, map);
}
spin_unlock_irqrestore(&gic_lock, flags);
return 0;
}
static int gic_irq_domain_alloc(struct irq_domain *d, unsigned int virq,
@ -633,11 +652,25 @@ static const struct irq_domain_ops gic_ipi_domain_ops = {
.match = gic_ipi_domain_match,
};
static int gic_cpu_startup(unsigned int cpu)
{
/* Enable or disable EIC */
change_gic_vl_ctl(GIC_VX_CTL_EIC,
cpu_has_veic ? GIC_VX_CTL_EIC : 0);
/* Clear all local IRQ masks (ie. disable all local interrupts) */
write_gic_vl_rmask(~0);
/* Invoke irq_cpu_online callbacks to enable desired interrupts */
irq_cpu_online();
return 0;
}
static int __init gic_of_init(struct device_node *node,
struct device_node *parent)
{
unsigned int cpu_vec, i, j, gicconfig, cpu, v[2];
unsigned int cpu_vec, i, gicconfig, v[2], num_ipis;
unsigned long reserved;
phys_addr_t gic_base;
struct resource res;
@ -645,7 +678,7 @@ static int __init gic_of_init(struct device_node *node,
/* Find the first available CPU vector. */
i = 0;
reserved = (C_SW0 | C_SW1) >> __fls(C_SW0);
reserved = (C_SW0 | C_SW1) >> __ffs(C_SW0);
while (!of_property_read_u32_index(node, "mti,reserved-cpu-vectors",
i++, &cpu_vec))
reserved |= BIT(cpu_vec);
@ -684,20 +717,10 @@ static int __init gic_of_init(struct device_node *node,
gicconfig = read_gic_config();
gic_shared_intrs = gicconfig & GIC_CONFIG_NUMINTERRUPTS;
gic_shared_intrs >>= __fls(GIC_CONFIG_NUMINTERRUPTS);
gic_shared_intrs >>= __ffs(GIC_CONFIG_NUMINTERRUPTS);
gic_shared_intrs = (gic_shared_intrs + 1) * 8;
gic_vpes = gicconfig & GIC_CONFIG_PVPS;
gic_vpes >>= __fls(GIC_CONFIG_PVPS);
gic_vpes = gic_vpes + 1;
if (cpu_has_veic) {
/* Set EIC mode for all VPEs */
for_each_present_cpu(cpu) {
write_gic_vl_other(mips_cm_vp_id(cpu));
write_gic_vo_ctl(GIC_VX_CTL_EIC);
}
/* Always use vector 1 in EIC mode */
gic_cpu_pin = 0;
timer_cpu_pin = gic_cpu_pin;
@ -753,10 +776,12 @@ static int __init gic_of_init(struct device_node *node,
!of_property_read_u32_array(node, "mti,reserved-ipi-vectors", v, 2)) {
bitmap_set(ipi_resrv, v[0], v[1]);
} else {
/* Make the last 2 * gic_vpes available for IPIs */
bitmap_set(ipi_resrv,
gic_shared_intrs - 2 * gic_vpes,
2 * gic_vpes);
/*
* Reserve 2 interrupts per possible CPU/VP for use as IPIs,
* meeting the requirements of arch/mips SMP.
*/
num_ipis = 2 * num_possible_cpus();
bitmap_set(ipi_resrv, gic_shared_intrs - num_ipis, num_ipis);
}
bitmap_copy(ipi_available, ipi_resrv, GIC_MAX_INTRS);
@ -770,15 +795,8 @@ static int __init gic_of_init(struct device_node *node,
write_gic_rmask(i);
}
for (i = 0; i < gic_vpes; i++) {
write_gic_vl_other(mips_cm_vp_id(i));
for (j = 0; j < GIC_NUM_LOCAL_INTRS; j++) {
if (!gic_local_irq_is_routable(j))
continue;
write_gic_vo_rmask(BIT(j));
}
}
return 0;
return cpuhp_setup_state(CPUHP_AP_IRQ_MIPS_GIC_STARTING,
"irqchip/mips/gic:starting",
gic_cpu_startup, NULL);
}
IRQCHIP_DECLARE(mips_gic, "mti,gic", gic_of_init);

29
drivers/leds/leds-as3645a.c
Просмотреть файл

@ -112,6 +112,10 @@
#define AS_PEAK_mA_TO_REG(a) \
((min_t(u32, AS_PEAK_mA_MAX, a) - 1250) / 250)
/* LED numbers for Devicetree */
#define AS_LED_FLASH 0
#define AS_LED_INDICATOR 1
enum as_mode {
AS_MODE_EXT_TORCH = 0 << AS_CONTROL_MODE_SETTING_SHIFT,
AS_MODE_INDICATOR = 1 << AS_CONTROL_MODE_SETTING_SHIFT,
@ -491,10 +495,29 @@ static int as3645a_parse_node(struct as3645a *flash,
struct device_node *node)
{
struct as3645a_config *cfg = &flash->cfg;
struct device_node *child;
const char *name;
int rval;
flash->flash_node = of_get_child_by_name(node, "flash");
for_each_child_of_node(node, child) {
u32 id = 0;
of_property_read_u32(child, "reg", &id);
switch (id) {
case AS_LED_FLASH:
flash->flash_node = of_node_get(child);
break;
case AS_LED_INDICATOR:
flash->indicator_node = of_node_get(child);
break;
default:
dev_warn(&flash->client->dev,
"unknown LED %u encountered, ignoring\n", id);
break;
}
}
if (!flash->flash_node) {
dev_err(&flash->client->dev, "can't find flash node\n");
return -ENODEV;
@ -534,11 +557,10 @@ static int as3645a_parse_node(struct as3645a *flash,
of_property_read_u32(flash->flash_node, "voltage-reference",
&cfg->voltage_reference);
of_property_read_u32(flash->flash_node, "peak-current-limit",
of_property_read_u32(flash->flash_node, "ams,input-max-microamp",
&cfg->peak);
cfg->peak = AS_PEAK_mA_TO_REG(cfg->peak);
flash->indicator_node = of_get_child_by_name(node, "indicator");
if (!flash->indicator_node) {
dev_warn(&flash->client->dev,
"can't find indicator node\n");
@ -721,6 +743,7 @@ static int as3645a_remove(struct i2c_client *client)
as3645a_set_control(flash, AS_MODE_EXT_TORCH, false);
v4l2_flash_release(flash->vf);
v4l2_flash_release(flash->vfind);
led_classdev_flash_unregister(&flash->fled);
led_classdev_unregister(&flash->iled_cdev);

2
drivers/md/dm-raid.c
Просмотреть файл

@ -3238,7 +3238,7 @@ static int raid_map(struct dm_target *ti, struct bio *bio)
if (unlikely(bio_end_sector(bio) > mddev->array_sectors))
return DM_MAPIO_REQUEUE;
mddev->pers->make_request(mddev, bio);
md_handle_request(mddev, bio);
return DM_MAPIO_SUBMITTED;
}

72
drivers/md/md.c
Просмотреть файл

@ -266,6 +266,37 @@ static DEFINE_SPINLOCK(all_mddevs_lock);
* call has finished, the bio has been linked into some internal structure
* and so is visible to ->quiesce(), so we don't need the refcount any more.
*/
void md_handle_request(struct mddev *mddev, struct bio *bio)
{
check_suspended:
rcu_read_lock();
if (mddev->suspended) {
DEFINE_WAIT(__wait);
for (;;) {
prepare_to_wait(&mddev->sb_wait, &__wait,
TASK_UNINTERRUPTIBLE);
if (!mddev->suspended)
break;
rcu_read_unlock();
schedule();
rcu_read_lock();
}
finish_wait(&mddev->sb_wait, &__wait);
}
atomic_inc(&mddev->active_io);
rcu_read_unlock();
if (!mddev->pers->make_request(mddev, bio)) {
atomic_dec(&mddev->active_io);
wake_up(&mddev->sb_wait);
goto check_suspended;
}
if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended)
wake_up(&mddev->sb_wait);
}
EXPORT_SYMBOL(md_handle_request);
static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
{
const int rw = bio_data_dir(bio);
@ -285,23 +316,6 @@ static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
bio_endio(bio);
return BLK_QC_T_NONE;
}
check_suspended:
rcu_read_lock();
if (mddev->suspended) {
DEFINE_WAIT(__wait);
for (;;) {
prepare_to_wait(&mddev->sb_wait, &__wait,
TASK_UNINTERRUPTIBLE);
if (!mddev->suspended)
break;
rcu_read_unlock();
schedule();
rcu_read_lock();
}
finish_wait(&mddev->sb_wait, &__wait);
}
atomic_inc(&mddev->active_io);
rcu_read_unlock();
/*
* save the sectors now since our bio can
@ -310,20 +324,14 @@ check_suspended:
sectors = bio_sectors(bio);
/* bio could be mergeable after passing to underlayer */
bio->bi_opf &= ~REQ_NOMERGE;
if (!mddev->pers->make_request(mddev, bio)) {
atomic_dec(&mddev->active_io);
wake_up(&mddev->sb_wait);
goto check_suspended;
}
md_handle_request(mddev, bio);
cpu = part_stat_lock();
part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]);
part_stat_add(cpu, &mddev->gendisk->part0, sectors[rw], sectors);
part_stat_unlock();
if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended)
wake_up(&mddev->sb_wait);
return BLK_QC_T_NONE;
}
@ -439,16 +447,22 @@ static void md_submit_flush_data(struct work_struct *ws)
struct mddev *mddev = container_of(ws, struct mddev, flush_work);
struct bio *bio = mddev->flush_bio;
/*
* must reset flush_bio before calling into md_handle_request to avoid a
* deadlock, because other bios passed md_handle_request suspend check
* could wait for this and below md_handle_request could wait for those
* bios because of suspend check
*/
mddev->flush_bio = NULL;
wake_up(&mddev->sb_wait);
if (bio->bi_iter.bi_size == 0)
/* an empty barrier - all done */
bio_endio(bio);
else {
bio->bi_opf &= ~REQ_PREFLUSH;
mddev->pers->make_request(mddev, bio);
md_handle_request(mddev, bio);
}
mddev->flush_bio = NULL;
wake_up(&mddev->sb_wait);
}
void md_flush_request(struct mddev *mddev, struct bio *bio)

1
drivers/md/md.h
Просмотреть файл

@ -692,6 +692,7 @@ extern void md_stop_writes(struct mddev *mddev);
extern int md_rdev_init(struct md_rdev *rdev);
extern void md_rdev_clear(struct md_rdev *rdev);
extern void md_handle_request(struct mddev *mddev, struct bio *bio);
extern void mddev_suspend(struct mddev *mddev);
extern void mddev_resume(struct mddev *mddev);
extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,

7
drivers/md/raid5.c
Просмотреть файл

@ -6575,14 +6575,17 @@ static ssize_t
raid5_store_group_thread_cnt(struct mddev *mddev, const char *page, size_t len)
{
struct r5conf *conf;
unsigned long new;
unsigned int new;
int err;
struct r5worker_group *new_groups, *old_groups;
int group_cnt, worker_cnt_per_group;
if (len >= PAGE_SIZE)
return -EINVAL;
if (kstrtoul(page, 10, &new))
if (kstrtouint(page, 10, &new))
return -EINVAL;
/* 8192 should be big enough */
if (new > 8192)
return -EINVAL;
err = mddev_lock(mddev);

15
drivers/mmc/host/sdhci-pci-core.c
Просмотреть файл

@ -392,6 +392,7 @@ static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = {
enum {
INTEL_DSM_FNS = 0,
INTEL_DSM_V18_SWITCH = 3,
INTEL_DSM_DRV_STRENGTH = 9,
INTEL_DSM_D3_RETUNE = 10,
};
@ -557,6 +558,19 @@ static void intel_hs400_enhanced_strobe(struct mmc_host *mmc,
sdhci_writel(host, val, INTEL_HS400_ES_REG);
}
static void sdhci_intel_voltage_switch(struct sdhci_host *host)
{
struct sdhci_pci_slot *slot = sdhci_priv(host);
struct intel_host *intel_host = sdhci_pci_priv(slot);
struct device *dev = &slot->chip->pdev->dev;
u32 result = 0;
int err;
err = intel_dsm(intel_host, dev, INTEL_DSM_V18_SWITCH, &result);
pr_debug("%s: %s DSM error %d result %u\n",
mmc_hostname(host->mmc), __func__, err, result);
}
static const struct sdhci_ops sdhci_intel_byt_ops = {
.set_clock = sdhci_set_clock,
.set_power = sdhci_intel_set_power,
@ -565,6 +579,7 @@ static const struct sdhci_ops sdhci_intel_byt_ops = {
.reset = sdhci_reset,
.set_uhs_signaling = sdhci_set_uhs_signaling,
.hw_reset = sdhci_pci_hw_reset,
.voltage_switch = sdhci_intel_voltage_switch,
};
static void byt_read_dsm(struct sdhci_pci_slot *slot)

47
drivers/mmc/host/tmio_mmc_core.c
Просмотреть файл

@ -129,50 +129,6 @@ static int tmio_mmc_next_sg(struct tmio_mmc_host *host)
#define CMDREQ_TIMEOUT 5000
#ifdef CONFIG_MMC_DEBUG
#define STATUS_TO_TEXT(a, status, i) \
do { \
if ((status) & TMIO_STAT_##a) { \
if ((i)++) \
printk(KERN_DEBUG " | "); \
printk(KERN_DEBUG #a); \
} \
} while (0)
static void pr_debug_status(u32 status)
{
int i = 0;
pr_debug("status: %08x = ", status);
STATUS_TO_TEXT(CARD_REMOVE, status, i);
STATUS_TO_TEXT(CARD_INSERT, status, i);
STATUS_TO_TEXT(SIGSTATE, status, i);
STATUS_TO_TEXT(WRPROTECT, status, i);
STATUS_TO_TEXT(CARD_REMOVE_A, status, i);
STATUS_TO_TEXT(CARD_INSERT_A, status, i);
STATUS_TO_TEXT(SIGSTATE_A, status, i);
STATUS_TO_TEXT(CMD_IDX_ERR, status, i);
STATUS_TO_TEXT(STOPBIT_ERR, status, i);
STATUS_TO_TEXT(ILL_FUNC, status, i);
STATUS_TO_TEXT(CMD_BUSY, status, i);
STATUS_TO_TEXT(CMDRESPEND, status, i);
STATUS_TO_TEXT(DATAEND, status, i);
STATUS_TO_TEXT(CRCFAIL, status, i);
STATUS_TO_TEXT(DATATIMEOUT, status, i);
STATUS_TO_TEXT(CMDTIMEOUT, status, i);
STATUS_TO_TEXT(RXOVERFLOW, status, i);
STATUS_TO_TEXT(TXUNDERRUN, status, i);
STATUS_TO_TEXT(RXRDY, status, i);
STATUS_TO_TEXT(TXRQ, status, i);
STATUS_TO_TEXT(ILL_ACCESS, status, i);
printk("\n");
}
#else
#define pr_debug_status(s) do { } while (0)
#endif
static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
{
struct tmio_mmc_host *host = mmc_priv(mmc);
@ -762,9 +718,6 @@ irqreturn_t tmio_mmc_irq(int irq, void *devid)
status = sd_ctrl_read16_and_16_as_32(host, CTL_STATUS);
ireg = status & TMIO_MASK_IRQ & ~host->sdcard_irq_mask;
pr_debug_status(status);
pr_debug_status(ireg);
/* Clear the status except the interrupt status */
sd_ctrl_write32_as_16_and_16(host, CTL_STATUS, TMIO_MASK_IRQ);

8
drivers/mtd/mtdpart.c
Просмотреть файл

@ -581,6 +581,14 @@ static struct mtd_part *allocate_partition(struct mtd_info *parent,
slave->mtd.erasesize = parent->erasesize;
}
/*
* Slave erasesize might differ from the master one if the master
* exposes several regions with different erasesize. Adjust
* wr_alignment accordingly.
*/
if (!(slave->mtd.flags & MTD_NO_ERASE))
wr_alignment = slave->mtd.erasesize;
tmp = slave->offset;
remainder = do_div(tmp, wr_alignment);
if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {

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