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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2022-12-08 16:07:53 -08:00
commit 837e8ac871
222 changed files with 1995 additions and 813 deletions
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1
.clang-format
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@ -535,6 +535,7 @@ ForEachMacros:
- 'perf_hpp_list__for_each_sort_list_safe'
- 'perf_pmu__for_each_hybrid_pmu'
- 'ping_portaddr_for_each_entry'
- 'ping_portaddr_for_each_entry_rcu'
- 'plist_for_each'
- 'plist_for_each_continue'
- 'plist_for_each_entry'

2
Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
View File

@ -148,7 +148,7 @@ allOf:
items:
- const: oscclk
- const: dout_clkcmu_fsys1_bus
- const: dout_clkcmu_fsys1_mmc_card
- const: gout_clkcmu_fsys1_mmc_card
- const: dout_clkcmu_fsys1_usbdrd
- if:

42
Documentation/loongarch/booting.rst Normal file
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@ -0,0 +1,42 @@
.. SPDX-License-Identifier: GPL-2.0
=======================
Booting Linux/LoongArch
=======================
:Author: Yanteng Si <siyanteng@loongson.cn>
:Date: 18 Nov 2022
Information passed from BootLoader to kernel
============================================
LoongArch supports ACPI and FDT. The information that needs to be passed
to the kernel includes the memmap, the initrd, the command line, optionally
the ACPI/FDT tables, and so on.
The kernel is passed the following arguments on `kernel_entry` :
- a0 = efi_boot: `efi_boot` is a flag indicating whether
this boot environment is fully UEFI-compliant.
- a1 = cmdline: `cmdline` is a pointer to the kernel command line.
- a2 = systemtable: `systemtable` points to the EFI system table.
All pointers involved at this stage are in physical addresses.
Header of Linux/LoongArch kernel images
=======================================
Linux/LoongArch kernel images are EFI images. Being PE files, they have
a 64-byte header structured like::
u32 MZ_MAGIC /* "MZ", MS-DOS header */
u32 res0 = 0 /* Reserved */
u64 kernel_entry /* Kernel entry point */
u64 _end - _text /* Kernel image effective size */
u64 load_offset /* Kernel image load offset from start of RAM */
u64 res1 = 0 /* Reserved */
u64 res2 = 0 /* Reserved */
u64 res3 = 0 /* Reserved */
u32 LINUX_PE_MAGIC /* Magic number */
u32 pe_header - _head /* Offset to the PE header */

1
Documentation/loongarch/index.rst
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@ -9,6 +9,7 @@ LoongArch Architecture
:numbered:
introduction
booting
irq-chip-model
features

48
Documentation/translations/zh_CN/loongarch/booting.rst Normal file
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@ -0,0 +1,48 @@
.. SPDX-License-Identifier: GPL-2.0
.. include:: ../disclaimer-zh_CN.rst
:Original: Documentation/loongarch/booting.rst
:翻译:
司延腾 Yanteng Si <siyanteng@loongson.cn>
====================
启动 Linux/LoongArch
====================
:作者: 司延腾 <siyanteng@loongson.cn>
:日期: 2022年11月18日
BootLoader传递给内核的信息
==========================
LoongArch支持ACPI和FDT启动，需要传递给内核的信息包括memmap、initrd、cmdline、可
选的ACPI/FDT表等。
内核在 `kernel_entry` 入口处被传递以下参数:
- a0 = efi_boot: `efi_boot` 是一个标志，表示这个启动环境是否完全符合UEFI
的要求。
- a1 = cmdline: `cmdline` 是一个指向内核命令行的指针。
- a2 = systemtable: `systemtable` 指向EFI的系统表，在这个阶段涉及的所有
指针都是物理地址。
Linux/LoongArch内核镜像文件头
=============================
内核镜像是EFI镜像。作为PE文件，它们有一个64字节的头部结构体，如下所示::
u32 MZ_MAGIC /* "MZ", MS-DOS 头 */
u32 res0 = 0 /* 保留 */
u64 kernel_entry /* 内核入口点 */
u64 _end - _text /* 内核镜像有效大小 */
u64 load_offset /* 加载内核镜像相对内存起始地址的偏移量 */
u64 res1 = 0 /* 保留 */
u64 res2 = 0 /* 保留 */
u64 res3 = 0 /* 保留 */
u32 LINUX_PE_MAGIC /* 魔术数 */
u32 pe_header - _head /* 到PE头的偏移量 */

1
Documentation/translations/zh_CN/loongarch/index.rst
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@ -14,6 +14,7 @@ LoongArch体系结构
:numbered:
introduction
booting
irq-chip-model
features

13
Documentation/virt/kvm/api.rst
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@ -7213,14 +7213,13 @@ veto the transition.
:Parameters: args[0] is the maximum poll time in nanoseconds
:Returns: 0 on success; -1 on error
This capability overrides the kvm module parameter halt_poll_ns for the
target VM.
KVM_CAP_HALT_POLL overrides the kvm.halt_poll_ns module parameter to set the
maximum halt-polling time for all vCPUs in the target VM. This capability can
be invoked at any time and any number of times to dynamically change the
maximum halt-polling time.
VCPU polling allows a VCPU to poll for wakeup events instead of immediately
scheduling during guest halts. The maximum time a VCPU can spend polling is
controlled by the kvm module parameter halt_poll_ns. This capability allows
the maximum halt time to specified on a per-VM basis, effectively overriding
the module parameter for the target VM.
See Documentation/virt/kvm/halt-polling.rst for more information on halt
polling.
7.21 KVM_CAP_X86_USER_SPACE_MSR
-------------------------------

13
Documentation/virt/kvm/x86/halt-polling.rst → Documentation/virt/kvm/halt-polling.rst
View File

@ -119,6 +119,19 @@ These module parameters can be set from the debugfs files in:
Note: that these module parameters are system wide values and are not able to
be tuned on a per vm basis.
Any changes to these parameters will be picked up by new and existing vCPUs the
next time they halt, with the notable exception of VMs using KVM_CAP_HALT_POLL
(see next section).
KVM_CAP_HALT_POLL
=================
KVM_CAP_HALT_POLL is a VM capability that allows userspace to override halt_poll_ns
on a per-VM basis. VMs using KVM_CAP_HALT_POLL ignore halt_poll_ns completely (but
still obey halt_poll_ns_grow, halt_poll_ns_grow_start, and halt_poll_ns_shrink).
See Documentation/virt/kvm/api.rst for more information on this capability.
Further Notes
=============

1
Documentation/virt/kvm/index.rst
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@ -17,4 +17,5 @@ KVM
locking
vcpu-requests
halt-polling
review-checklist

1
Documentation/virt/kvm/x86/index.rst
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@ -10,7 +10,6 @@ KVM for x86 systems
amd-memory-encryption
cpuid
errata
halt-polling
hypercalls
mmu
msr

2
Makefile
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@ -2,7 +2,7 @@
VERSION = 6
PATCHLEVEL = 1
SUBLEVEL = 0
EXTRAVERSION = -rc7
EXTRAVERSION = -rc8
NAME = Hurr durr I'ma ninja sloth
# *DOCUMENTATION*

2
arch/arm/boot/dts/at91rm9200.dtsi
View File

@ -666,7 +666,7 @@ usb1: gadget@fffb0000 {
compatible = "atmel,at91rm9200-udc";
reg = <0xfffb0000 0x4000>;
interrupts = <11 IRQ_TYPE_LEVEL_HIGH 2>;
clocks = <&pmc PMC_TYPE_PERIPHERAL 11>, <&pmc PMC_TYPE_SYSTEM 2>;
clocks = <&pmc PMC_TYPE_PERIPHERAL 11>, <&pmc PMC_TYPE_SYSTEM 1>;
clock-names = "pclk", "hclk";
status = "disabled";
};

2
arch/arm/mach-at91/sama5.c
View File

@ -26,7 +26,7 @@ static void sama5_l2c310_write_sec(unsigned long val, unsigned reg)
static void __init sama5_secure_cache_init(void)
{
sam_secure_init();
if (sam_linux_is_optee_available())
if (IS_ENABLED(CONFIG_OUTER_CACHE) && sam_linux_is_optee_available())
outer_cache.write_sec = sama5_l2c310_write_sec;
}

8
arch/arm64/include/asm/efi.h
View File

@ -14,16 +14,8 @@
#ifdef CONFIG_EFI
extern void efi_init(void);
bool efi_runtime_fixup_exception(struct pt_regs *regs, const char *msg);
#else
#define efi_init()
static inline
bool efi_runtime_fixup_exception(struct pt_regs *regs, const char *msg)
{
return false;
}
#endif
int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md);

33
arch/arm64/kernel/efi-rt-wrapper.S
View File

@ -6,7 +6,7 @@
#include <linux/linkage.h>
SYM_FUNC_START(__efi_rt_asm_wrapper)
stp x29, x30, [sp, #-112]!
stp x29, x30, [sp, #-32]!
mov x29, sp
/*
@ -16,20 +16,6 @@ SYM_FUNC_START(__efi_rt_asm_wrapper)
*/
stp x1, x18, [sp, #16]
/*
* Preserve all callee saved registers and record the stack pointer
* value in a per-CPU variable so we can recover from synchronous
* exceptions occurring while running the firmware routines.
*/
stp x19, x20, [sp, #32]
stp x21, x22, [sp, #48]
stp x23, x24, [sp, #64]
stp x25, x26, [sp, #80]
stp x27, x28, [sp, #96]
adr_this_cpu x8, __efi_rt_asm_recover_sp, x9
str x29, [x8]
/*
* We are lucky enough that no EFI runtime services take more than
* 5 arguments, so all are passed in registers rather than via the
@ -45,7 +31,7 @@ SYM_FUNC_START(__efi_rt_asm_wrapper)
ldp x1, x2, [sp, #16]
cmp x2, x18
ldp x29, x30, [sp], #112
ldp x29, x30, [sp], #32
b.ne 0f
ret
0:
@ -59,18 +45,3 @@ SYM_FUNC_START(__efi_rt_asm_wrapper)
mov x18, x2
b efi_handle_corrupted_x18 // tail call
SYM_FUNC_END(__efi_rt_asm_wrapper)
SYM_FUNC_START(__efi_rt_asm_recover)
ldr_this_cpu x8, __efi_rt_asm_recover_sp, x9
mov sp, x8
ldp x0, x18, [sp, #16]
ldp x19, x20, [sp, #32]
ldp x21, x22, [sp, #48]
ldp x23, x24, [sp, #64]
ldp x25, x26, [sp, #80]
ldp x27, x28, [sp, #96]
ldp x29, x30, [sp], #112
b efi_handle_runtime_exception
SYM_FUNC_END(__efi_rt_asm_recover)

26
arch/arm64/kernel/efi.c
View File

@ -9,7 +9,6 @@
#include <linux/efi.h>
#include <linux/init.h>
#include <linux/percpu.h>
#include <asm/efi.h>
@ -145,28 +144,3 @@ asmlinkage efi_status_t efi_handle_corrupted_x18(efi_status_t s, const char *f)
pr_err_ratelimited(FW_BUG "register x18 corrupted by EFI %s\n", f);
return s;
}
asmlinkage DEFINE_PER_CPU(u64, __efi_rt_asm_recover_sp);
asmlinkage efi_status_t __efi_rt_asm_recover(void);
asmlinkage efi_status_t efi_handle_runtime_exception(const char *f)
{
pr_err(FW_BUG "Synchronous exception occurred in EFI runtime service %s()\n", f);
clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
return EFI_ABORTED;
}
bool efi_runtime_fixup_exception(struct pt_regs *regs, const char *msg)
{
/* Check whether the exception occurred while running the firmware */
if (current_work() != &efi_rts_work.work || regs->pc >= TASK_SIZE_64)
return false;
pr_err(FW_BUG "Unable to handle %s in EFI runtime service\n", msg);
add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK);
dump_stack();
regs->pc = (u64)__efi_rt_asm_recover;
return true;
}

17
arch/arm64/mm/dma-mapping.c
View File

@ -36,7 +36,22 @@ void arch_dma_prep_coherent(struct page *page, size_t size)
{
unsigned long start = (unsigned long)page_address(page);
dcache_clean_poc(start, start + size);
/*
* The architecture only requires a clean to the PoC here in order to
* meet the requirements of the DMA API. However, some vendors (i.e.
* Qualcomm) abuse the DMA API for transferring buffers from the
* non-secure to the secure world, resetting the system if a non-secure
* access shows up after the buffer has been transferred:
*
* https://lore.kernel.org/r/20221114110329.68413-1-manivannan.sadhasivam@linaro.org
*
* Using clean+invalidate appears to make this issue less likely, but
* the drivers themselves still need fixing as the CPU could issue a
* speculative read from the buffer via the linear mapping irrespective
* of the cache maintenance we use. Once the drivers are fixed, we can
* relax this to a clean operation.
*/
dcache_clean_inval_poc(start, start + size);
}
#ifdef CONFIG_IOMMU_DMA

4
arch/arm64/mm/fault.c
View File

@ -30,7 +30,6 @@
#include <asm/bug.h>
#include <asm/cmpxchg.h>
#include <asm/cpufeature.h>
#include <asm/efi.h>
#include <asm/exception.h>
#include <asm/daifflags.h>
#include <asm/debug-monitors.h>
@ -392,9 +391,6 @@ static void __do_kernel_fault(unsigned long addr, unsigned long esr,
msg = "paging request";
}
if (efi_runtime_fixup_exception(regs, msg))
return;
die_kernel_fault(msg, addr, esr, regs);
}

1
arch/loongarch/include/asm/pgtable.h
View File

@ -490,6 +490,7 @@ static inline pmd_t pmd_mkdirty(pmd_t pmd)
return pmd;
}
#define pmd_young pmd_young
static inline int pmd_young(pmd_t pmd)
{
return !!(pmd_val(pmd) & _PAGE_ACCESSED);

10
arch/loongarch/include/asm/smp.h
View File

@ -78,16 +78,6 @@ extern void calculate_cpu_foreign_map(void);
*/
extern void show_ipi_list(struct seq_file *p, int prec);
/*
* This function sends a 'reschedule' IPI to another CPU.
* it goes straight through and wastes no time serializing
* anything. Worst case is that we lose a reschedule ...
*/
static inline void smp_send_reschedule(int cpu)
{
loongson_send_ipi_single(cpu, SMP_RESCHEDULE);
}
static inline void arch_send_call_function_single_ipi(int cpu)
{
loongson_send_ipi_single(cpu, SMP_CALL_FUNCTION);

11
arch/loongarch/kernel/smp.c
View File

@ -149,6 +149,17 @@ void loongson_send_ipi_mask(const struct cpumask *mask, unsigned int action)
ipi_write_action(cpu_logical_map(i), (u32)action);
}
/*
* This function sends a 'reschedule' IPI to another CPU.
* it goes straight through and wastes no time serializing
* anything. Worst case is that we lose a reschedule ...
*/
void smp_send_reschedule(int cpu)
{
loongson_send_ipi_single(cpu, SMP_RESCHEDULE);
}
EXPORT_SYMBOL_GPL(smp_send_reschedule);
irqreturn_t loongson_ipi_interrupt(int irq, void *dev)
{
unsigned int action;

30
arch/loongarch/mm/tlbex.S
View File

@ -10,6 +10,8 @@
#include <asm/regdef.h>
#include <asm/stackframe.h>
#define INVTLB_ADDR_GFALSE_AND_ASID 5
#define PTRS_PER_PGD_BITS (PAGE_SHIFT - 3)
#define PTRS_PER_PUD_BITS (PAGE_SHIFT - 3)
#define PTRS_PER_PMD_BITS (PAGE_SHIFT - 3)
@ -136,13 +138,10 @@ tlb_huge_update_load:
ori t0, ra, _PAGE_VALID
st.d t0, t1, 0
#endif
tlbsrch
addu16i.d t1, zero, -(CSR_TLBIDX_EHINV >> 16)
addi.d ra, t1, 0
csrxchg ra, t1, LOONGARCH_CSR_TLBIDX
tlbwr
csrxchg zero, t1, LOONGARCH_CSR_TLBIDX
csrrd ra, LOONGARCH_CSR_ASID
csrrd t1, LOONGARCH_CSR_BADV
andi ra, ra, CSR_ASID_ASID
invtlb INVTLB_ADDR_GFALSE_AND_ASID, ra, t1
/*
* A huge PTE describes an area the size of the
@ -287,13 +286,11 @@ tlb_huge_update_store:
ori t0, ra, (_PAGE_VALID | _PAGE_DIRTY | _PAGE_MODIFIED)
st.d t0, t1, 0
#endif
tlbsrch
addu16i.d t1, zero, -(CSR_TLBIDX_EHINV >> 16)
addi.d ra, t1, 0
csrxchg ra, t1, LOONGARCH_CSR_TLBIDX
tlbwr
csrrd ra, LOONGARCH_CSR_ASID
csrrd t1, LOONGARCH_CSR_BADV
andi ra, ra, CSR_ASID_ASID
invtlb INVTLB_ADDR_GFALSE_AND_ASID, ra, t1
csrxchg zero, t1, LOONGARCH_CSR_TLBIDX
/*
* A huge PTE describes an area the size of the
* configured huge page size. This is twice the
@ -436,6 +433,11 @@ tlb_huge_update_modify:
ori t0, ra, (_PAGE_VALID | _PAGE_DIRTY | _PAGE_MODIFIED)
st.d t0, t1, 0
#endif
csrrd ra, LOONGARCH_CSR_ASID
csrrd t1, LOONGARCH_CSR_BADV
andi ra, ra, CSR_ASID_ASID
invtlb INVTLB_ADDR_GFALSE_AND_ASID, ra, t1
/*
* A huge PTE describes an area the size of the
* configured huge page size. This is twice the
@ -466,7 +468,7 @@ tlb_huge_update_modify:
addu16i.d t1, zero, (PS_HUGE_SIZE << (CSR_TLBIDX_PS_SHIFT - 16))
csrxchg t1, t0, LOONGARCH_CSR_TLBIDX
tlbwr
tlbfill
/* Reset default page size */
addu16i.d t0, zero, (CSR_TLBIDX_PS >> 16)

1
arch/mips/include/asm/pgtable.h
View File

@ -622,6 +622,7 @@ static inline pmd_t pmd_mkdirty(pmd_t pmd)
return pmd;
}
#define pmd_young pmd_young
static inline int pmd_young(pmd_t pmd)
{
return !!(pmd_val(pmd) & _PAGE_ACCESSED);

1
arch/powerpc/include/asm/interrupt.h
View File

@ -602,6 +602,7 @@ ____##func(struct pt_regs *regs)
/* kernel/traps.c */
DECLARE_INTERRUPT_HANDLER_NMI(system_reset_exception);
#ifdef CONFIG_PPC_BOOK3S_64
DECLARE_INTERRUPT_HANDLER_RAW(machine_check_early_boot);
DECLARE_INTERRUPT_HANDLER_ASYNC(machine_check_exception_async);
#endif
DECLARE_INTERRUPT_HANDLER_NMI(machine_check_exception);

56
arch/powerpc/net/bpf_jit_comp32.c
View File

@ -113,23 +113,19 @@ void bpf_jit_build_prologue(u32 *image, struct codegen_context *ctx)
{
int i;
/* Initialize tail_call_cnt, to be skipped if we do tail calls. */
EMIT(PPC_RAW_LI(_R4, 0));
#define BPF_TAILCALL_PROLOGUE_SIZE 4
EMIT(PPC_RAW_STWU(_R1, _R1, -BPF_PPC_STACKFRAME(ctx)));
if (ctx->seen & SEEN_TAILCALL)
EMIT(PPC_RAW_STW(_R4, _R1, bpf_jit_stack_offsetof(ctx, BPF_PPC_TC)));
/* First arg comes in as a 32 bits pointer. */
EMIT(PPC_RAW_MR(bpf_to_ppc(BPF_REG_1), _R3));
EMIT(PPC_RAW_LI(bpf_to_ppc(BPF_REG_1) - 1, 0));
EMIT(PPC_RAW_STWU(_R1, _R1, -BPF_PPC_STACKFRAME(ctx)));
/*
* Initialize tail_call_cnt in stack frame if we do tail calls.
* Otherwise, put in NOPs so that it can be skipped when we are
* invoked through a tail call.
*/
if (ctx->seen & SEEN_TAILCALL)
EMIT(PPC_RAW_STW(bpf_to_ppc(BPF_REG_1) - 1, _R1,
bpf_jit_stack_offsetof(ctx, BPF_PPC_TC)));
else
EMIT(PPC_RAW_NOP());
#define BPF_TAILCALL_PROLOGUE_SIZE 16
/*
* We need a stack frame, but we don't necessarily need to
@ -170,6 +166,16 @@ static void bpf_jit_emit_common_epilogue(u32 *image, struct codegen_context *ctx
for (i = BPF_PPC_NVR_MIN; i <= 31; i++)
if (bpf_is_seen_register(ctx, i))
EMIT(PPC_RAW_LWZ(i, _R1, bpf_jit_stack_offsetof(ctx, i)));
if (ctx->seen & SEEN_FUNC)
EMIT(PPC_RAW_LWZ(_R0, _R1, BPF_PPC_STACKFRAME(ctx) + PPC_LR_STKOFF));
/* Tear down our stack frame */
EMIT(PPC_RAW_ADDI(_R1, _R1, BPF_PPC_STACKFRAME(ctx)));
if (ctx->seen & SEEN_FUNC)
EMIT(PPC_RAW_MTLR(_R0));
}
void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx)
@ -178,16 +184,6 @@ void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx)
bpf_jit_emit_common_epilogue(image, ctx);
/* Tear down our stack frame */
if (ctx->seen & SEEN_FUNC)
EMIT(PPC_RAW_LWZ(_R0, _R1, BPF_PPC_STACKFRAME(ctx) + PPC_LR_STKOFF));
EMIT(PPC_RAW_ADDI(_R1, _R1, BPF_PPC_STACKFRAME(ctx)));
if (ctx->seen & SEEN_FUNC)
EMIT(PPC_RAW_MTLR(_R0));
EMIT(PPC_RAW_BLR());
}
@ -244,7 +240,6 @@ static int bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 o
EMIT(PPC_RAW_RLWINM(_R3, b2p_index, 2, 0, 29));
EMIT(PPC_RAW_ADD(_R3, _R3, b2p_bpf_array));
EMIT(PPC_RAW_LWZ(_R3, _R3, offsetof(struct bpf_array, ptrs)));
EMIT(PPC_RAW_STW(_R0, _R1, bpf_jit_stack_offsetof(ctx, BPF_PPC_TC)));
/*
* if (prog == NULL)
@ -255,19 +250,14 @@ static int bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 o
/* goto *(prog->bpf_func + prologue_size); */
EMIT(PPC_RAW_LWZ(_R3, _R3, offsetof(struct bpf_prog, bpf_func)));
if (ctx->seen & SEEN_FUNC)
EMIT(PPC_RAW_LWZ(_R0, _R1, BPF_PPC_STACKFRAME(ctx) + PPC_LR_STKOFF));
EMIT(PPC_RAW_ADDIC(_R3, _R3, BPF_TAILCALL_PROLOGUE_SIZE));
if (ctx->seen & SEEN_FUNC)
EMIT(PPC_RAW_MTLR(_R0));
EMIT(PPC_RAW_MTCTR(_R3));
EMIT(PPC_RAW_MR(_R3, bpf_to_ppc(BPF_REG_1)));
/* Put tail_call_cnt in r4 */
EMIT(PPC_RAW_MR(_R4, _R0));
/* tear restore NVRs, ... */
bpf_jit_emit_common_epilogue(image, ctx);

6
arch/riscv/Kconfig
View File

@ -317,9 +317,9 @@ config SMP
config NR_CPUS
int "Maximum number of CPUs (2-512)"
depends on SMP
range 2 512 if !SBI_V01
range 2 32 if SBI_V01 && 32BIT
range 2 64 if SBI_V01 && 64BIT
range 2 512 if !RISCV_SBI_V01
range 2 32 if RISCV_SBI_V01 && 32BIT
range 2 64 if RISCV_SBI_V01 && 64BIT
default "32" if 32BIT
default "64" if 64BIT

1
arch/riscv/include/asm/asm.h
View File

@ -23,6 +23,7 @@
#define REG_L __REG_SEL(ld, lw)
#define REG_S __REG_SEL(sd, sw)
#define REG_SC __REG_SEL(sc.d, sc.w)
#define REG_AMOSWAP_AQ __REG_SEL(amoswap.d.aq, amoswap.w.aq)
#define REG_ASM __REG_SEL(.dword, .word)
#define SZREG __REG_SEL(8, 4)
#define LGREG __REG_SEL(3, 2)

6
arch/riscv/include/asm/efi.h
View File

@ -10,6 +10,7 @@
#include <asm/mmu_context.h>
#include <asm/ptrace.h>
#include <asm/tlbflush.h>
#include <asm/pgalloc.h>
#ifdef CONFIG_EFI
extern void efi_init(void);
@ -20,7 +21,10 @@ extern void efi_init(void);
int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md);
int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
#define arch_efi_call_virt_setup() efi_virtmap_load()
#define arch_efi_call_virt_setup() ({ \
sync_kernel_mappings(efi_mm.pgd); \
efi_virtmap_load(); \
})
#define arch_efi_call_virt_teardown() efi_virtmap_unload()
#define ARCH_EFI_IRQ_FLAGS_MASK (SR_IE | SR_SPIE)

11
arch/riscv/include/asm/pgalloc.h
View File

@ -127,6 +127,13 @@ static inline void p4d_free(struct mm_struct *mm, p4d_t *p4d)
#define __p4d_free_tlb(tlb, p4d, addr) p4d_free((tlb)->mm, p4d)
#endif /* __PAGETABLE_PMD_FOLDED */
static inline void sync_kernel_mappings(pgd_t *pgd)
{
memcpy(pgd + USER_PTRS_PER_PGD,
init_mm.pgd + USER_PTRS_PER_PGD,
(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
}
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
pgd_t *pgd;
@ -135,9 +142,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
if (likely(pgd != NULL)) {
memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
/* Copy kernel mappings */
memcpy(pgd + USER_PTRS_PER_PGD,
init_mm.pgd + USER_PTRS_PER_PGD,
(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
sync_kernel_mappings(pgd);
}
return pgd;
}

1
arch/riscv/include/asm/pgtable.h
View File

@ -600,6 +600,7 @@ static inline int pmd_dirty(pmd_t pmd)
return pte_dirty(pmd_pte(pmd));
}
#define pmd_young pmd_young
static inline int pmd_young(pmd_t pmd)
{
return pte_young(pmd_pte(pmd));

3
arch/riscv/include/asm/smp.h
View File

@ -50,6 +50,9 @@ void riscv_set_ipi_ops(const struct riscv_ipi_ops *ops);
/* Clear IPI for current CPU */
void riscv_clear_ipi(void);
/* Check other CPUs stop or not */
bool smp_crash_stop_failed(void);
/* Secondary hart entry */
asmlinkage void smp_callin(void);

13
arch/riscv/kernel/entry.S
View File

@ -404,6 +404,19 @@ handle_syscall_trace_exit:
#ifdef CONFIG_VMAP_STACK
handle_kernel_stack_overflow:
/*
* Takes the psuedo-spinlock for the shadow stack, in case multiple
* harts are concurrently overflowing their kernel stacks. We could
* store any value here, but since we're overflowing the kernel stack
* already we only have SP to use as a scratch register. So we just
* swap in the address of the spinlock, as that's definately non-zero.
*
* Pairs with a store_release in handle_bad_stack().
*/
1: la sp, spin_shadow_stack
REG_AMOSWAP_AQ sp, sp, (sp)
bnez sp, 1b
la sp, shadow_stack
addi sp, sp, SHADOW_OVERFLOW_STACK_SIZE

46
arch/riscv/kernel/machine_kexec.c
View File

@ -15,6 +15,8 @@
#include <linux/compiler.h> /* For unreachable() */
#include <linux/cpu.h> /* For cpu_down() */
#include <linux/reboot.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
/*
* kexec_image_info - Print received image details
@ -138,20 +140,35 @@ void machine_shutdown(void)
#endif
}
/* Override the weak function in kernel/panic.c */
void crash_smp_send_stop(void)
static void machine_kexec_mask_interrupts(void)
{
static int cpus_stopped;
unsigned int i;
struct irq_desc *desc;
/*
* This function can be called twice in panic path, but obviously
* we execute this only once.
*/
if (cpus_stopped)
return;
for_each_irq_desc(i, desc) {
struct irq_chip *chip;
int ret;
smp_send_stop();
cpus_stopped = 1;
chip = irq_desc_get_chip(desc);
if (!chip)
continue;
/*
* First try to remove the active state. If this
* fails, try to EOI the interrupt.
*/
ret = irq_set_irqchip_state(i, IRQCHIP_STATE_ACTIVE, false);
if (ret && irqd_irq_inprogress(&desc->irq_data) &&
chip->irq_eoi)
chip->irq_eoi(&desc->irq_data);
if (chip->irq_mask)
chip->irq_mask(&desc->irq_data);
if (chip->irq_disable && !irqd_irq_disabled(&desc->irq_data))
chip->irq_disable(&desc->irq_data);
}
}
/*
@ -169,6 +186,8 @@ machine_crash_shutdown(struct pt_regs *regs)
crash_smp_send_stop();
crash_save_cpu(regs, smp_processor_id());
machine_kexec_mask_interrupts();
pr_info("Starting crashdump kernel...\n");
}
@ -195,6 +214,11 @@ machine_kexec(struct kimage *image)
void *control_code_buffer = page_address(image->control_code_page);
riscv_kexec_method kexec_method = NULL;
#ifdef CONFIG_SMP
WARN(smp_crash_stop_failed(),
"Some CPUs may be stale, kdump will be unreliable.\n");
#endif
if (image->type != KEXEC_TYPE_CRASH)
kexec_method = control_code_buffer;
else

9
arch/riscv/kernel/setup.c
View File

@ -322,10 +322,11 @@ subsys_initcall(topology_init);
void free_initmem(void)
{
if (IS_ENABLED(CONFIG_STRICT_KERNEL_RWX))
set_kernel_memory(lm_alias(__init_begin), lm_alias(__init_end),
IS_ENABLED(CONFIG_64BIT) ?
set_memory_rw : set_memory_rw_nx);
if (IS_ENABLED(CONFIG_STRICT_KERNEL_RWX)) {
set_kernel_memory(lm_alias(__init_begin), lm_alias(__init_end), set_memory_rw_nx);
if (IS_ENABLED(CONFIG_64BIT))
set_kernel_memory(__init_begin, __init_end, set_memory_nx);
}
free_initmem_default(POISON_FREE_INITMEM);
}

97
arch/riscv/kernel/smp.c
View File

@ -12,6 +12,7 @@
#include <linux/clockchips.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/kexec.h>
#include <linux/profile.h>
#include <linux/smp.h>
#include <linux/sched.h>
@ -22,11 +23,13 @@
#include <asm/sbi.h>
#include <asm/tlbflush.h>
#include <asm/cacheflush.h>
#include <asm/cpu_ops.h>
enum ipi_message_type {
IPI_RESCHEDULE,
IPI_CALL_FUNC,
IPI_CPU_STOP,
IPI_CPU_CRASH_STOP,
IPI_IRQ_WORK,
IPI_TIMER,
IPI_MAX
@ -71,6 +74,32 @@ static void ipi_stop(void)
wait_for_interrupt();
}
#ifdef CONFIG_KEXEC_CORE
static atomic_t waiting_for_crash_ipi = ATOMIC_INIT(0);
static inline void ipi_cpu_crash_stop(unsigned int cpu, struct pt_regs *regs)
{
crash_save_cpu(regs, cpu);
atomic_dec(&waiting_for_crash_ipi);
local_irq_disable();
#ifdef CONFIG_HOTPLUG_CPU
if (cpu_has_hotplug(cpu))
cpu_ops[cpu]->cpu_stop();
#endif
for(;;)
wait_for_interrupt();
}
#else
static inline void ipi_cpu_crash_stop(unsigned int cpu, struct pt_regs *regs)
{
unreachable();
}
#endif
static const struct riscv_ipi_ops *ipi_ops __ro_after_init;
void riscv_set_ipi_ops(const struct riscv_ipi_ops *ops)
@ -124,8 +153,9 @@ void arch_irq_work_raise(void)
void handle_IPI(struct pt_regs *regs)
{
unsigned long *pending_ipis = &ipi_data[smp_processor_id()].bits;
unsigned long *stats = ipi_data[smp_processor_id()].stats;
unsigned int cpu = smp_processor_id();
unsigned long *pending_ipis = &ipi_data[cpu].bits;
unsigned long *stats = ipi_data[cpu].stats;
riscv_clear_ipi();
@ -154,6 +184,10 @@ void handle_IPI(struct pt_regs *regs)
ipi_stop();
}
if (ops & (1 << IPI_CPU_CRASH_STOP)) {
ipi_cpu_crash_stop(cpu, get_irq_regs());
}
if (ops & (1 << IPI_IRQ_WORK)) {
stats[IPI_IRQ_WORK]++;
irq_work_run();
@ -176,6 +210,7 @@ static const char * const ipi_names[] = {
[IPI_RESCHEDULE] = "Rescheduling interrupts",
[IPI_CALL_FUNC] = "Function call interrupts",
[IPI_CPU_STOP] = "CPU stop interrupts",
[IPI_CPU_CRASH_STOP] = "CPU stop (for crash dump) interrupts",
[IPI_IRQ_WORK] = "IRQ work interrupts",
[IPI_TIMER] = "Timer broadcast interrupts",
};
@ -235,6 +270,64 @@ void smp_send_stop(void)
cpumask_pr_args(cpu_online_mask));
}
#ifdef CONFIG_KEXEC_CORE
/*
* The number of CPUs online, not counting this CPU (which may not be
* fully online and so not counted in num_online_cpus()).
*/
static inline unsigned int num_other_online_cpus(void)
{
unsigned int this_cpu_online = cpu_online(smp_processor_id());
return num_online_cpus() - this_cpu_online;
}
void crash_smp_send_stop(void)
{
static int cpus_stopped;
cpumask_t mask;
unsigned long timeout;
/*
* This function can be called twice in panic path, but obviously
* we execute this only once.
*/
if (cpus_stopped)
return;
cpus_stopped = 1;
/*
* If this cpu is the only one alive at this point in time, online or
* not, there are no stop messages to be sent around, so just back out.
*/
if (num_other_online_cpus() == 0)
return;
cpumask_copy(&mask, cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), &mask);
atomic_set(&waiting_for_crash_ipi, num_other_online_cpus());
pr_crit("SMP: stopping secondary CPUs\n");
send_ipi_mask(&mask, IPI_CPU_CRASH_STOP);
/* Wait up to one second for other CPUs to stop */
timeout = USEC_PER_SEC;
while ((atomic_read(&waiting_for_crash_ipi) > 0) && timeout--)
udelay(1);
if (atomic_read(&waiting_for_crash_ipi) > 0)
pr_warn("SMP: failed to stop secondary CPUs %*pbl\n",
cpumask_pr_args(&mask));
}
bool smp_crash_stop_failed(void)
{
return (atomic_read(&waiting_for_crash_ipi) > 0);
}
#endif
void smp_send_reschedule(int cpu)
{
send_ipi_single(cpu, IPI_RESCHEDULE);

18
arch/riscv/kernel/traps.c
View File

@ -221,11 +221,29 @@ asmlinkage unsigned long get_overflow_stack(void)
OVERFLOW_STACK_SIZE;
}
/*
* A pseudo spinlock to protect the shadow stack from being used by multiple
* harts concurrently. This isn't a real spinlock because the lock side must
* be taken without a valid stack and only a single register, it's only taken
* while in the process of panicing anyway so the performance and error
* checking a proper spinlock gives us doesn't matter.
*/
unsigned long spin_shadow_stack;
asmlinkage void handle_bad_stack(struct pt_regs *regs)
{
unsigned long tsk_stk = (unsigned long)current->stack;
unsigned long ovf_stk = (unsigned long)this_cpu_ptr(overflow_stack);
/*
* We're done with the shadow stack by this point, as we're on the
* overflow stack. Tell any other concurrent overflowing harts that
* they can proceed with panicing by releasing the pseudo-spinlock.
*
* This pairs with an amoswap.aq in handle_kernel_stack_overflow.
*/
smp_store_release(&spin_shadow_stack, 0);
console_verbose();
pr_emerg("Insufficient stack space to handle exception!\n");

1
arch/riscv/kernel/vdso/Makefile
View File

@ -17,6 +17,7 @@ vdso-syms += flush_icache
obj-vdso = $(patsubst %, %.o, $(vdso-syms)) note.o
ccflags-y := -fno-stack-protector
ccflags-y += -DDISABLE_BRANCH_PROFILING
ifneq ($(c-gettimeofday-y),)
CFLAGS_vgettimeofday.o += -fPIC -include $(c-gettimeofday-y)

1
arch/s390/include/asm/pgtable.h
View File

@ -763,6 +763,7 @@ static inline int pmd_dirty(pmd_t pmd)
return (pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY) != 0;
}
#define pmd_young pmd_young
static inline int pmd_young(pmd_t pmd)
{
return (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) != 0;

4
arch/s390/kvm/vsie.c
View File

@ -546,8 +546,10 @@ static int shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_CEI))
scb_s->eca |= scb_o->eca & ECA_CEI;
/* Epoch Extension */
if (test_kvm_facility(vcpu->kvm, 139))
if (test_kvm_facility(vcpu->kvm, 139)) {
scb_s->ecd |= scb_o->ecd & ECD_MEF;
scb_s->epdx = scb_o->epdx;
}
/* etoken */
if (test_kvm_facility(vcpu->kvm, 156))

1
arch/sparc/include/asm/pgtable_64.h
View File

@ -693,6 +693,7 @@ static inline unsigned long pmd_dirty(pmd_t pmd)
return pte_dirty(pte);
}
#define pmd_young pmd_young
static inline unsigned long pmd_young(pmd_t pmd)
{
pte_t pte = __pte(pmd_val(pmd));

2
arch/x86/include/asm/nospec-branch.h
View File

@ -321,7 +321,7 @@ static inline void indirect_branch_prediction_barrier(void)
/* The Intel SPEC CTRL MSR base value cache */
extern u64 x86_spec_ctrl_base;
DECLARE_PER_CPU(u64, x86_spec_ctrl_current);
extern void write_spec_ctrl_current(u64 val, bool force);
extern void update_spec_ctrl_cond(u64 val);
extern u64 spec_ctrl_current(void);
/*

9
arch/x86/include/asm/pgtable.h
View File

@ -139,6 +139,7 @@ static inline int pmd_dirty(pmd_t pmd)
return pmd_flags(pmd) & _PAGE_DIRTY;
}
#define pmd_young pmd_young
static inline int pmd_young(pmd_t pmd)
{
return pmd_flags(pmd) & _PAGE_ACCESSED;
@ -1438,6 +1439,14 @@ static inline bool arch_has_hw_pte_young(void)
return true;
}
#ifdef CONFIG_XEN_PV
#define arch_has_hw_nonleaf_pmd_young arch_has_hw_nonleaf_pmd_young
static inline bool arch_has_hw_nonleaf_pmd_young(void)
{
return !cpu_feature_enabled(X86_FEATURE_XENPV);
}
#endif
#ifdef CONFIG_PAGE_TABLE_CHECK
static inline bool pte_user_accessible_page(pte_t pte)
{

21
arch/x86/kernel/cpu/bugs.c
View File

@ -60,11 +60,18 @@ EXPORT_SYMBOL_GPL(x86_spec_ctrl_current);
static DEFINE_MUTEX(spec_ctrl_mutex);
/* Update SPEC_CTRL MSR and its cached copy unconditionally */
static void update_spec_ctrl(u64 val)
{
this_cpu_write(x86_spec_ctrl_current, val);
wrmsrl(MSR_IA32_SPEC_CTRL, val);
}
/*
* Keep track of the SPEC_CTRL MSR value for the current task, which may differ
* from x86_spec_ctrl_base due to STIBP/SSB in __speculation_ctrl_update().
*/
void write_spec_ctrl_current(u64 val, bool force)
void update_spec_ctrl_cond(u64 val)
{
if (this_cpu_read(x86_spec_ctrl_current) == val)
return;
@ -75,7 +82,7 @@ void write_spec_ctrl_current(u64 val, bool force)
* When KERNEL_IBRS this MSR is written on return-to-user, unless
* forced the update can be delayed until that time.
*/
if (force || !cpu_feature_enabled(X86_FEATURE_KERNEL_IBRS))
if (!cpu_feature_enabled(X86_FEATURE_KERNEL_IBRS))
wrmsrl(MSR_IA32_SPEC_CTRL, val);
}
@ -1328,7 +1335,7 @@ static void __init spec_ctrl_disable_kernel_rrsba(void)
if (ia32_cap & ARCH_CAP_RRSBA) {
x86_spec_ctrl_base |= SPEC_CTRL_RRSBA_DIS_S;
write_spec_ctrl_current(x86_spec_ctrl_base, true);
update_spec_ctrl(x86_spec_ctrl_base);
}
}
@ -1450,7 +1457,7 @@ static void __init spectre_v2_select_mitigation(void)
if (spectre_v2_in_ibrs_mode(mode)) {
x86_spec_ctrl_base |= SPEC_CTRL_IBRS;
write_spec_ctrl_current(x86_spec_ctrl_base, true);
update_spec_ctrl(x86_spec_ctrl_base);
}
switch (mode) {
@ -1564,7 +1571,7 @@ static void __init spectre_v2_select_mitigation(void)
static void update_stibp_msr(void * __unused)
{
u64 val = spec_ctrl_current() | (x86_spec_ctrl_base & SPEC_CTRL_STIBP);
write_spec_ctrl_current(val, true);
update_spec_ctrl(val);
}
/* Update x86_spec_ctrl_base in case SMT state changed. */
@ -1797,7 +1804,7 @@ static enum ssb_mitigation __init __ssb_select_mitigation(void)
x86_amd_ssb_disable();
} else {
x86_spec_ctrl_base |= SPEC_CTRL_SSBD;
write_spec_ctrl_current(x86_spec_ctrl_base, true);
update_spec_ctrl(x86_spec_ctrl_base);
}
}
@ -2048,7 +2055,7 @@ int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which)
void x86_spec_ctrl_setup_ap(void)
{
if (boot_cpu_has(X86_FEATURE_MSR_SPEC_CTRL))
write_spec_ctrl_current(x86_spec_ctrl_base, true);
update_spec_ctrl(x86_spec_ctrl_base);
if (ssb_mode == SPEC_STORE_BYPASS_DISABLE)
x86_amd_ssb_disable();

2
arch/x86/kernel/process.c
View File

@ -600,7 +600,7 @@ static __always_inline void __speculation_ctrl_update(unsigned long tifp,
}
if (updmsr)
write_spec_ctrl_current(msr, false);
update_spec_ctrl_cond(msr);
}
static unsigned long speculation_ctrl_update_tif(struct task_struct *tsk)

2
arch/x86/kvm/x86.c
View File

@ -10574,8 +10574,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
vcpu->run->exit_reason = KVM_EXIT_SHUTDOWN;
vcpu->mmio_needed = 0;
r = 0;
goto out;
}
goto out;
}
if (kvm_check_request(KVM_REQ_APF_HALT, vcpu)) {
/* Page is swapped out. Do synthetic halt */

27
drivers/acpi/numa/hmat.c
View File

@ -562,17 +562,26 @@ static int initiator_cmp(void *priv, const struct list_head *a,
{
struct memory_initiator *ia;
struct memory_initiator *ib;
unsigned long *p_nodes = priv;
ia = list_entry(a, struct memory_initiator, node);
ib = list_entry(b, struct memory_initiator, node);
set_bit(ia->processor_pxm, p_nodes);
set_bit(ib->processor_pxm, p_nodes);
return ia->processor_pxm - ib->processor_pxm;
}
static int initiators_to_nodemask(unsigned long *p_nodes)
{
struct memory_initiator *initiator;
if (list_empty(&initiators))
return -ENXIO;
list_for_each_entry(initiator, &initiators, node)
set_bit(initiator->processor_pxm, p_nodes);
return 0;
}
static void hmat_register_target_initiators(struct memory_target *target)
{
static DECLARE_BITMAP(p_nodes, MAX_NUMNODES);
@ -609,7 +618,10 @@ static void hmat_register_target_initiators(struct memory_target *target)
* initiators.
*/
bitmap_zero(p_nodes, MAX_NUMNODES);
list_sort(p_nodes, &initiators, initiator_cmp);
list_sort(NULL, &initiators, initiator_cmp);
if (initiators_to_nodemask(p_nodes) < 0)
return;
if (!access0done) {
for (i = WRITE_LATENCY; i <= READ_BANDWIDTH; i++) {
loc = localities_types[i];
@ -643,8 +655,9 @@ static void hmat_register_target_initiators(struct memory_target *target)
/* Access 1 ignores Generic Initiators */
bitmap_zero(p_nodes, MAX_NUMNODES);
list_sort(p_nodes, &initiators, initiator_cmp);
best = 0;
if (initiators_to_nodemask(p_nodes) < 0)
return;
for (i = WRITE_LATENCY; i <= READ_BANDWIDTH; i++) {
loc = localities_types[i];
if (!loc)

2
drivers/ata/libahci_platform.c
View File

@ -109,7 +109,7 @@ struct clk *ahci_platform_find_clk(struct ahci_host_priv *hpriv, const char *con
int i;
for (i = 0; i < hpriv->n_clks; i++) {
if (!strcmp(hpriv->clks[i].id, con_id))
if (hpriv->clks[i].id && !strcmp(hpriv->clks[i].id, con_id))
return hpriv->clks[i].clk;
}

6
drivers/bluetooth/btusb.c
View File

@ -2056,6 +2056,11 @@ static int btusb_setup_csr(struct hci_dev *hdev)
rp = (struct hci_rp_read_local_version *)skb->data;
bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x; LMP ver=%u subver=%04x; manufacturer=%u",
le16_to_cpu(rp->hci_ver), le16_to_cpu(rp->hci_rev),
le16_to_cpu(rp->lmp_ver), le16_to_cpu(rp->lmp_subver),
le16_to_cpu(rp->manufacturer));
/* Detect a wide host of Chinese controllers that aren't CSR.
*
* Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
@ -2118,6 +2123,7 @@ static int btusb_setup_csr(struct hci_dev *hdev)
* without these the controller will lock up.
*/
set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);

5
drivers/char/tpm/tpm-interface.c
View File

@ -401,13 +401,14 @@ int tpm_pm_suspend(struct device *dev)
!pm_suspend_via_firmware())
goto suspended;
if (!tpm_chip_start(chip)) {
rc = tpm_try_get_ops(chip);
if (!rc) {
if (chip->flags & TPM_CHIP_FLAG_TPM2)
tpm2_shutdown(chip, TPM2_SU_STATE);
else
rc = tpm1_pm_suspend(chip, tpm_suspend_pcr);
tpm_chip_stop(chip);
tpm_put_ops(chip);
}
suspended:

2
drivers/clk/at91/at91rm9200.c
View File

@ -40,7 +40,7 @@ static const struct clk_pll_characteristics rm9200_pll_characteristics = {
};
static const struct sck at91rm9200_systemck[] = {
{ .n = "udpck", .p = "usbck", .id = 2 },
{ .n = "udpck", .p = "usbck", .id = 1 },
{ .n = "uhpck", .p = "usbck", .id = 4 },
{ .n = "pck0", .p = "prog0", .id = 8 },
{ .n = "pck1", .p = "prog1", .id = 9 },

6
drivers/clk/qcom/gcc-sc8280xp.c
View File

@ -5364,6 +5364,8 @@ static struct clk_branch gcc_ufs_1_card_clkref_clk = {
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "gcc_ufs_1_card_clkref_clk",
.parent_data = &gcc_parent_data_tcxo,
.num_parents = 1,
.ops = &clk_branch2_ops,
},
},
@ -5432,6 +5434,8 @@ static struct clk_branch gcc_ufs_card_clkref_clk = {
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "gcc_ufs_card_clkref_clk",
.parent_data = &gcc_parent_data_tcxo,
.num_parents = 1,
.ops = &clk_branch2_ops,
},
},
@ -5848,6 +5852,8 @@ static struct clk_branch gcc_ufs_ref_clkref_clk = {
.enable_mask = BIT(0),
.hw.init = &(const struct clk_init_data) {
.name = "gcc_ufs_ref_clkref_clk",
.parent_data = &gcc_parent_data_tcxo,
.num_parents = 1,
.ops = &clk_branch2_ops,
},
},

61
drivers/clk/qcom/gdsc.c
View File

@ -11,7 +11,6 @@
#include <linux/kernel.h>
#include <linux/ktime.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/reset-controller.h>
@ -56,22 +55,6 @@ enum gdsc_status {
GDSC_ON
};
static int gdsc_pm_runtime_get(struct gdsc *sc)
{
if (!sc->dev)
return 0;
return pm_runtime_resume_and_get(sc->dev);
}
static int gdsc_pm_runtime_put(struct gdsc *sc)
{
if (!sc->dev)
return 0;
return pm_runtime_put_sync(sc->dev);
}
/* Returns 1 if GDSC status is status, 0 if not, and < 0 on error */
static int gdsc_check_status(struct gdsc *sc, enum gdsc_status status)
{
@ -271,8 +254,9 @@ static void gdsc_retain_ff_on(struct gdsc *sc)
regmap_update_bits(sc->regmap, sc->gdscr, mask, mask);
}
static int _gdsc_enable(struct gdsc *sc)
static int gdsc_enable(struct generic_pm_domain *domain)
{
struct gdsc *sc = domain_to_gdsc(domain);
int ret;
if (sc->pwrsts == PWRSTS_ON)
@ -328,22 +312,11 @@ static int _gdsc_enable(struct gdsc *sc)
return 0;
}
static int gdsc_enable(struct generic_pm_domain *domain)
static int gdsc_disable(struct generic_pm_domain *domain)
{
struct gdsc *sc = domain_to_gdsc(domain);
int ret;
ret = gdsc_pm_runtime_get(sc);
if (ret)
return ret;
return _gdsc_enable(sc);
}
static int _gdsc_disable(struct gdsc *sc)
{
int ret;
if (sc->pwrsts == PWRSTS_ON)
return gdsc_assert_reset(sc);
@ -388,18 +361,6 @@ static int _gdsc_disable(struct gdsc *sc)
return 0;
}
static int gdsc_disable(struct generic_pm_domain *domain)
{
struct gdsc *sc = domain_to_gdsc(domain);
int ret;
ret = _gdsc_disable(sc);
gdsc_pm_runtime_put(sc);
return ret;
}
static int gdsc_init(struct gdsc *sc)
{
u32 mask, val;
@ -447,11 +408,6 @@ static int gdsc_init(struct gdsc *sc)
return ret;
}
/* ...and the power-domain */
ret = gdsc_pm_runtime_get(sc);
if (ret)
goto err_disable_supply;
/*
* Votable GDSCs can be ON due to Vote from other masters.
* If a Votable GDSC is ON, make sure we have a Vote.
@ -459,14 +415,14 @@ static int gdsc_init(struct gdsc *sc)
if (sc->flags & VOTABLE) {
ret = gdsc_update_collapse_bit(sc, false);
if (ret)
goto err_put_rpm;
goto err_disable_supply;
}
/* Turn on HW trigger mode if supported */
if (sc->flags & HW_CTRL) {
ret = gdsc_hwctrl(sc, true);
if (ret < 0)
goto err_put_rpm;
goto err_disable_supply;
}
/*
@ -496,13 +452,10 @@ static int gdsc_init(struct gdsc *sc)
ret = pm_genpd_init(&sc->pd, NULL, !on);
if (ret)
goto err_put_rpm;
goto err_disable_supply;
return 0;
err_put_rpm:
if (on)
gdsc_pm_runtime_put(sc);
err_disable_supply:
if (on && sc->rsupply)
regulator_disable(sc->rsupply);
@ -541,8 +494,6 @@ int gdsc_register(struct gdsc_desc *desc,
for (i = 0; i < num; i++) {
if (!scs[i])
continue;
if (pm_runtime_enabled(dev))
scs[i]->dev = dev;
scs[i]->regmap = regmap;
scs[i]->rcdev = rcdev;
ret = gdsc_init(scs[i]);

2
drivers/clk/qcom/gdsc.h
View File

@ -30,7 +30,6 @@ struct reset_controller_dev;
* @resets: ids of resets associated with this gdsc
* @reset_count: number of @resets
* @rcdev: reset controller
* @dev: the device holding the GDSC, used for pm_runtime calls
*/
struct gdsc {
struct generic_pm_domain pd;
@ -74,7 +73,6 @@ struct gdsc {
const char *supply;
struct regulator *rsupply;
struct device *dev;
};
struct gdsc_desc {

6
drivers/clk/samsung/clk-exynos-clkout.c
View File

@ -81,17 +81,19 @@ MODULE_DEVICE_TABLE(of, exynos_clkout_ids);
static int exynos_clkout_match_parent_dev(struct device *dev, u32 *mux_mask)
{
const struct exynos_clkout_variant *variant;
const struct of_device_id *match;
if (!dev->parent) {
dev_err(dev, "not instantiated from MFD\n");
return -EINVAL;
}
variant = of_device_get_match_data(dev->parent);
if (!variant) {
match = of_match_device(exynos_clkout_ids, dev->parent);
if (!match) {
dev_err(dev, "cannot match parent device\n");
return -EINVAL;
}
variant = match->data;
*mux_mask = variant->mux_mask;

4
drivers/clk/samsung/clk-exynos7885.c
View File

@ -231,7 +231,7 @@ static const struct samsung_div_clock top_div_clks[] __initconst = {
CLK_CON_DIV_PLL_SHARED0_DIV2, 0, 1),
DIV(CLK_DOUT_SHARED0_DIV3, "dout_shared0_div3", "fout_shared0_pll",
CLK_CON_DIV_PLL_SHARED0_DIV3, 0, 2),
DIV(CLK_DOUT_SHARED0_DIV4, "dout_shared0_div4", "fout_shared0_pll",
DIV(CLK_DOUT_SHARED0_DIV4, "dout_shared0_div4", "dout_shared0_div2",
CLK_CON_DIV_PLL_SHARED0_DIV4, 0, 1),
DIV(CLK_DOUT_SHARED0_DIV5, "dout_shared0_div5", "fout_shared0_pll",
CLK_CON_DIV_PLL_SHARED0_DIV5, 0, 3),
@ -239,7 +239,7 @@ static const struct samsung_div_clock top_div_clks[] __initconst = {
CLK_CON_DIV_PLL_SHARED1_DIV2, 0, 1),
DIV(CLK_DOUT_SHARED1_DIV3, "dout_shared1_div3", "fout_shared1_pll",
CLK_CON_DIV_PLL_SHARED1_DIV3, 0, 2),
DIV(CLK_DOUT_SHARED1_DIV4, "dout_shared1_div4", "fout_shared1_pll",
DIV(CLK_DOUT_SHARED1_DIV4, "dout_shared1_div4", "dout_shared1_div2",
CLK_CON_DIV_PLL_SHARED1_DIV4, 0, 1),
/* CORE */

2
drivers/clocksource/timer-riscv.c
View File

@ -51,7 +51,7 @@ static int riscv_clock_next_event(unsigned long delta,
static unsigned int riscv_clock_event_irq;
static DEFINE_PER_CPU(struct clock_event_device, riscv_clock_event) = {
.name = "riscv_timer_clockevent",
.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_C3STOP,
.features = CLOCK_EVT_FEAT_ONESHOT,
.rating = 100,
.set_next_event = riscv_clock_next_event,
};

24
drivers/dax/hmem/device.c
View File

@ -8,6 +8,13 @@
static bool nohmem;
module_param_named(disable, nohmem, bool, 0444);
static struct resource hmem_active = {
.name = "HMEM devices",
.start = 0,
.end = -1,
.flags = IORESOURCE_MEM,
};
void hmem_register_device(int target_nid, struct resource *r)
{
/* define a clean / non-busy resource for the platform device */
@ -41,6 +48,12 @@ void hmem_register_device(int target_nid, struct resource *r)
goto out_pdev;
}
if (!__request_region(&hmem_active, res.start, resource_size(&res),
dev_name(&pdev->dev), 0)) {
dev_dbg(&pdev->dev, "hmem range %pr already active\n", &res);
goto out_active;
}
pdev->dev.numa_node = numa_map_to_online_node(target_nid);
info = (struct memregion_info) {
.target_node = target_nid,
@ -66,6 +79,8 @@ void hmem_register_device(int target_nid, struct resource *r)
return;
out_resource:
__release_region(&hmem_active, res.start, resource_size(&res));
out_active:
platform_device_put(pdev);
out_pdev:
memregion_free(id);
@ -73,15 +88,6 @@ void hmem_register_device(int target_nid, struct resource *r)
static __init int hmem_register_one(struct resource *res, void *data)
{
/*
* If the resource is not a top-level resource it was already
* assigned to a device by the HMAT parsing.
*/
if (res->parent != &iomem_resource) {
pr_info("HMEM: skip %pr, already claimed\n", res);
return 0;
}
hmem_register_device(phys_to_target_node(res->start), res);
return 0;

4
drivers/gpio/gpio-amd8111.c
View File

@ -226,7 +226,10 @@ static int __init amd_gpio_init(void)
ioport_unmap(gp.pm);
goto out;
}
return 0;
out:
pci_dev_put(pdev);
return err;
}
@ -234,6 +237,7 @@ static void __exit amd_gpio_exit(void)
{
gpiochip_remove(&gp.chip);
ioport_unmap(gp.pm);
pci_dev_put(gp.pdev);
}
module_init(amd_gpio_init);

1
drivers/gpio/gpio-rockchip.c
View File

@ -610,6 +610,7 @@ static int rockchip_gpiolib_register(struct rockchip_pin_bank *bank)
return -ENODATA;
pctldev = of_pinctrl_get(pctlnp);
of_node_put(pctlnp);
if (!pctldev)
return -ENODEV;

42
drivers/gpio/gpiolib.c
View File

@ -526,12 +526,13 @@ static int gpiochip_setup_dev(struct gpio_device *gdev)
if (ret)
return ret;
/* From this point, the .release() function cleans up gpio_device */
gdev->dev.release = gpiodevice_release;
ret = gpiochip_sysfs_register(gdev);
if (ret)
goto err_remove_device;
/* From this point, the .release() function cleans up gpio_device */
gdev->dev.release = gpiodevice_release;
dev_dbg(&gdev->dev, "registered GPIOs %d to %d on %s\n", gdev->base,
gdev->base + gdev->ngpio - 1, gdev->chip->label ? : "generic");
@ -597,10 +598,10 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
struct fwnode_handle *fwnode = NULL;
struct gpio_device *gdev;
unsigned long flags;
int base = gc->base;
unsigned int i;
u32 ngpios = 0;
int base = 0;
int ret = 0;
u32 ngpios;
if (gc->fwnode)
fwnode = gc->fwnode;
@ -647,17 +648,12 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
else
gdev->owner = THIS_MODULE;
gdev->descs = kcalloc(gc->ngpio, sizeof(gdev->descs[0]), GFP_KERNEL);
if (!gdev->descs) {
ret = -ENOMEM;
goto err_free_dev_name;
}
/*
* Try the device properties if the driver didn't supply the number
* of GPIO lines.
*/
if (gc->ngpio == 0) {
ngpios = gc->ngpio;
if (ngpios == 0) {
ret = device_property_read_u32(&gdev->dev, "ngpios", &ngpios);
if (ret == -ENODATA)
/*
@ -668,7 +664,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
*/
ngpios = 0;
else if (ret)
goto err_free_descs;
goto err_free_dev_name;
gc->ngpio = ngpios;
}
@ -676,13 +672,19 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
if (gc->ngpio == 0) {
chip_err(gc, "tried to insert a GPIO chip with zero lines\n");
ret = -EINVAL;
goto err_free_descs;
goto err_free_dev_name;
}
if (gc->ngpio > FASTPATH_NGPIO)
chip_warn(gc, "line cnt %u is greater than fast path cnt %u\n",
gc->ngpio, FASTPATH_NGPIO);
gdev->descs = kcalloc(gc->ngpio, sizeof(*gdev->descs), GFP_KERNEL);
if (!gdev->descs) {
ret = -ENOMEM;
goto err_free_dev_name;
}
gdev->label = kstrdup_const(gc->label ?: "unknown", GFP_KERNEL);
if (!gdev->label) {
ret = -ENOMEM;
@ -701,11 +703,13 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
* it may be a pipe dream. It will not happen before we get rid
* of the sysfs interface anyways.
*/
base = gc->base;
if (base < 0) {
base = gpiochip_find_base(gc->ngpio);
if (base < 0) {
ret = base;
spin_unlock_irqrestore(&gpio_lock, flags);
ret = base;
base = 0;
goto err_free_label;
}
/*
@ -816,6 +820,11 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
err_free_gpiochip_mask:
gpiochip_remove_pin_ranges(gc);
gpiochip_free_valid_mask(gc);
if (gdev->dev.release) {
/* release() has been registered by gpiochip_setup_dev() */
put_device(&gdev->dev);
goto err_print_message;
}
err_remove_from_list:
spin_lock_irqsave(&gpio_lock, flags);
list_del(&gdev->list);
@ -829,13 +838,14 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
err_free_ida:
ida_free(&gpio_ida, gdev->id);
err_free_gdev:
kfree(gdev);
err_print_message:
/* failures here can mean systems won't boot... */
if (ret != -EPROBE_DEFER) {
pr_err("%s: GPIOs %d..%d (%s) failed to register, %d\n", __func__,
gdev->base, gdev->base + gdev->ngpio - 1,
base, base + (int)ngpios - 1,
gc->label ? : "generic", ret);
}
kfree(gdev);
return ret;
}
EXPORT_SYMBOL_GPL(gpiochip_add_data_with_key);

3
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
View File

@ -156,6 +156,9 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
break;
case IP_VERSION(3, 0, 2):
fw_name = FIRMWARE_VANGOGH;
if ((adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) &&
(adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
adev->vcn.indirect_sram = true;
break;
case IP_VERSION(3, 0, 16):
fw_name = FIRMWARE_DIMGREY_CAVEFISH;

7
drivers/gpu/drm/amd/display/Kconfig
View File

@ -5,6 +5,7 @@ menu "Display Engine Configuration"
config DRM_AMD_DC
bool "AMD DC - Enable new display engine"
default y
depends on BROKEN || !CC_IS_CLANG || X86_64 || SPARC64 || ARM64
select SND_HDA_COMPONENT if SND_HDA_CORE
select DRM_AMD_DC_DCN if (X86 || PPC_LONG_DOUBLE_128)
help
@ -12,6 +13,12 @@ config DRM_AMD_DC
support for AMDGPU. This adds required support for Vega and
Raven ASICs.
calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
architectures built with Clang (all released versions), whereby the stack
frame gets blown up to well over 5k. This would cause an immediate kernel
panic on most architectures. We'll revert this when the following bug report
has been resolved: https://github.com/llvm/llvm-project/issues/41896.
config DRM_AMD_DC_DCN
def_bool n
help

10
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -3723,12 +3723,16 @@ static bool ilk_get_pipe_config(struct intel_crtc *crtc,
static u8 bigjoiner_pipes(struct drm_i915_private *i915)
{
u8 pipes;
if (DISPLAY_VER(i915) >= 12)
return BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D);
pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D);
else if (DISPLAY_VER(i915) >= 11)
return BIT(PIPE_B) | BIT(PIPE_C);
pipes = BIT(PIPE_B) | BIT(PIPE_C);
else
return 0;
pipes = 0;
return pipes & RUNTIME_INFO(i915)->pipe_mask;
}
static bool transcoder_ddi_func_is_enabled(struct drm_i915_private *dev_priv,

14
drivers/gpu/drm/i915/gt/intel_gt.c
View File

@ -625,8 +625,13 @@ int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout)
return -EINTR;
}
return timeout ? timeout : intel_uc_wait_for_idle(&gt->uc,
remaining_timeout);
if (timeout)
return timeout;
if (remaining_timeout < 0)
remaining_timeout = 0;
return intel_uc_wait_for_idle(&gt->uc, remaining_timeout);
}
int intel_gt_init(struct intel_gt *gt)
@ -1017,6 +1022,11 @@ static void mmio_invalidate_full(struct intel_gt *gt)
if (!i915_mmio_reg_offset(rb.reg))
continue;
if (GRAPHICS_VER(i915) == 12 && (engine->class == VIDEO_DECODE_CLASS ||
engine->class == VIDEO_ENHANCEMENT_CLASS ||
engine->class == COMPUTE_CLASS))
rb.bit = _MASKED_BIT_ENABLE(rb.bit);
intel_uncore_write_fw(uncore, rb.reg, rb.bit);
awake |= engine->mask;
}

2
drivers/gpu/drm/i915/gt/intel_gt_requests.c
View File

@ -199,7 +199,7 @@ out_active: spin_lock(&timelines->lock);
if (remaining_timeout)
*remaining_timeout = timeout;
return active_count ? timeout : 0;
return active_count ? timeout ?: -ETIME : 0;
}
static void retire_work_handler(struct work_struct *work)

3
drivers/gpu/drm/i915/intel_dram.c
View File

@ -471,8 +471,7 @@ static int xelpdp_get_dram_info(struct drm_i915_private *i915)
u32 val = intel_uncore_read(&i915->uncore, MTL_MEM_SS_INFO_GLOBAL);
struct dram_info *dram_info = &i915->dram_info;
val = REG_FIELD_GET(MTL_DDR_TYPE_MASK, val);
switch (val) {
switch (REG_FIELD_GET(MTL_DDR_TYPE_MASK, val)) {
case 0:
dram_info->type = INTEL_DRAM_DDR4;
break;

3
drivers/hid/hid-core.c
View File

@ -1315,6 +1315,9 @@ static s32 snto32(__u32 value, unsigned n)
if (!value || !n)
return 0;
if (n > 32)
n = 32;
switch (n) {
case 8: return ((__s8)value);
case 16: return ((__s16)value);

4
drivers/hid/hid-ids.h
View File

@ -274,6 +274,7 @@
#define USB_DEVICE_ID_CH_AXIS_295 0x001c
#define USB_VENDOR_ID_CHERRY 0x046a
#define USB_DEVICE_ID_CHERRY_MOUSE_000C 0x000c
#define USB_DEVICE_ID_CHERRY_CYMOTION 0x0023
#define USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR 0x0027
@ -917,6 +918,7 @@
#define USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER 0x02fd
#define USB_DEVICE_ID_MS_PIXART_MOUSE 0x00cb
#define USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS 0x02e0
#define USB_DEVICE_ID_MS_MOUSE_0783 0x0783
#define USB_VENDOR_ID_MOJO 0x8282
#define USB_DEVICE_ID_RETRO_ADAPTER 0x3201
@ -1215,6 +1217,7 @@
#define USB_DEVICE_ID_SYNAPTICS_DELL_K15A 0x6e21
#define USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1002 0x73f4
#define USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003 0x73f5
#define USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_017 0x73f6
#define USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5 0x81a7
#define USB_VENDOR_ID_TEXAS_INSTRUMENTS 0x2047
@ -1381,6 +1384,7 @@
#define USB_VENDOR_ID_PRIMAX 0x0461
#define USB_DEVICE_ID_PRIMAX_MOUSE_4D22 0x4d22
#define USB_DEVICE_ID_PRIMAX_MOUSE_4E2A 0x4e2a
#define USB_DEVICE_ID_PRIMAX_KEYBOARD 0x4e05
#define USB_DEVICE_ID_PRIMAX_REZEL 0x4e72
#define USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D0F 0x4d0f

5
drivers/hid/hid-ite.c
View File

@ -121,6 +121,11 @@ static const struct hid_device_id ite_devices[] = {
USB_VENDOR_ID_SYNAPTICS,
USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003),
.driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_017),
.driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
{ }
};
MODULE_DEVICE_TABLE(hid, ite_devices);

6
drivers/hid/hid-lg4ff.c
View File

@ -872,6 +872,12 @@ static ssize_t lg4ff_alternate_modes_store(struct device *dev, struct device_att
return -ENOMEM;
i = strlen(lbuf);
if (i == 0) {
kfree(lbuf);
return -EINVAL;
}
if (lbuf[i-1] == '\n') {
if (i == 1) {
kfree(lbuf);

28
drivers/hid/hid-logitech-hidpp.c
View File

@ -4269,21 +4269,6 @@ static void hidpp_remove(struct hid_device *hdev)
mutex_destroy(&hidpp->send_mutex);
}
static const struct hid_device_id unhandled_hidpp_devices[] = {
/* Logitech Harmony Adapter for PS3, handled in hid-sony */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
/* Handled in hid-generic */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD) },
{}
};
static bool hidpp_match(struct hid_device *hdev,
bool ignore_special_driver)
{
/* Refuse to handle devices handled by other HID drivers */
return !hid_match_id(hdev, unhandled_hidpp_devices);
}
#define LDJ_DEVICE(product) \
HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE, \
USB_VENDOR_ID_LOGITECH, (product))
@ -4367,9 +4352,15 @@ static const struct hid_device_id hidpp_devices[] = {
{ /* MX5500 keyboard over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb30b),
.driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
{ /* And try to enable HID++ for all the Logitech Bluetooth devices */
HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_ANY, USB_VENDOR_ID_LOGITECH, HID_ANY_ID) },
{ /* M-RCQ142 V470 Cordless Laser Mouse over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb008) },
{ /* MX Master mouse over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb012) },
{ /* MX Ergo trackball over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb01d) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb01e) },
{ /* MX Master 3 mouse over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb023) },
{}
};
@ -4383,7 +4374,6 @@ static const struct hid_usage_id hidpp_usages[] = {
static struct hid_driver hidpp_driver = {
.name = "logitech-hidpp-device",
.id_table = hidpp_devices,
.match = hidpp_match,
.report_fixup = hidpp_report_fixup,
.probe = hidpp_probe,
.remove = hidpp_remove,

3
drivers/hid/hid-quirks.c
View File

@ -54,6 +54,7 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_THROTTLE), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_MOUSE_000C), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K65RGB), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K65RGB_RAPIDFIRE), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K70RGB), HID_QUIRK_NO_INIT_REPORTS },
@ -122,6 +123,7 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOUSE_C05A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOUSE_C06A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_MCS, USB_DEVICE_ID_MCS_GAMEPADBLOCK), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_MOUSE_0783), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PIXART_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_SURFACE3_COVER), HID_QUIRK_NO_INIT_REPORTS },
@ -146,6 +148,7 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_MOUSE_4D22), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_MOUSE_4E2A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D0F), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D65), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4E22), HID_QUIRK_ALWAYS_POLL },

1
drivers/hid/hid-uclogic-core.c
View File

@ -192,6 +192,7 @@ static int uclogic_probe(struct hid_device *hdev,
* than the pen, so use QUIRK_MULTI_INPUT for all tablets.
*/
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
hdev->quirks |= HID_QUIRK_HIDINPUT_FORCE;
/* Allocate and assign driver data */
drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);

2
drivers/hid/hid-uclogic-rdesc.c
View File

@ -1193,7 +1193,7 @@ __u8 *uclogic_rdesc_template_apply(const __u8 *template_ptr,
p[sizeof(btn_head)] < param_num) {
v = param_list[p[sizeof(btn_head)]];
put_unaligned((__u8)0x2A, p); /* Usage Maximum */
put_unaligned_le16((__force u16)cpu_to_le16(v), p + 1);
put_unaligned((__force u16)cpu_to_le16(v), (s16 *)(p + 1));
p += sizeof(btn_head) + 1;
} else {
p++;

4
drivers/hid/i2c-hid/Kconfig
View File

@ -66,6 +66,6 @@ endmenu
config I2C_HID_CORE
tristate
default y if I2C_HID_ACPI=y || I2C_HID_OF=y || I2C_HID_OF_GOODIX=y
default m if I2C_HID_ACPI=m || I2C_HID_OF=m || I2C_HID_OF_GOODIX=m
default y if I2C_HID_ACPI=y || I2C_HID_OF=y || I2C_HID_OF_ELAN=y || I2C_HID_OF_GOODIX=y
default m if I2C_HID_ACPI=m || I2C_HID_OF=m || I2C_HID_OF_ELAN=m || I2C_HID_OF_GOODIX=m
select HID

2
drivers/hwmon/asus-ec-sensors.c
View File

@ -938,6 +938,8 @@ static int asus_ec_probe(struct platform_device *pdev)
ec_data->nr_sensors = hweight_long(ec_data->board_info->sensors);
ec_data->sensors = devm_kcalloc(dev, ec_data->nr_sensors,
sizeof(struct ec_sensor), GFP_KERNEL);
if (!ec_data->sensors)
return -ENOMEM;
status = setup_lock_data(dev);
if (status) {

9
drivers/hwmon/coretemp.c
View File

@ -242,10 +242,13 @@ static int adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
*/
if (host_bridge && host_bridge->vendor == PCI_VENDOR_ID_INTEL) {
for (i = 0; i < ARRAY_SIZE(tjmax_pci_table); i++) {
if (host_bridge->device == tjmax_pci_table[i].device)
if (host_bridge->device == tjmax_pci_table[i].device) {
pci_dev_put(host_bridge);
return tjmax_pci_table[i].tjmax;
}
}
}
pci_dev_put(host_bridge);
for (i = 0; i < ARRAY_SIZE(tjmax_table); i++) {
if (strstr(c->x86_model_id, tjmax_table[i].id))
@ -533,6 +536,10 @@ static void coretemp_remove_core(struct platform_data *pdata, int indx)
{
struct temp_data *tdata = pdata->core_data[indx];
/* if we errored on add then this is already gone */
if (!tdata)
return;
/* Remove the sysfs attributes */
sysfs_remove_group(&pdata->hwmon_dev->kobj, &tdata->attr_group);

2
drivers/hwmon/i5500_temp.c
View File

@ -117,7 +117,7 @@ static int i5500_temp_probe(struct pci_dev *pdev,
u32 tstimer;
s8 tsfsc;
err = pci_enable_device(pdev);
err = pcim_enable_device(pdev);
if (err) {
dev_err(&pdev->dev, "Failed to enable device\n");
return err;

1
drivers/hwmon/ibmpex.c
View File

@ -502,6 +502,7 @@ static void ibmpex_register_bmc(int iface, struct device *dev)
return;
out_register:
list_del(&data->list);
hwmon_device_unregister(data->hwmon_dev);
out_user:
ipmi_destroy_user(data->user);

4
drivers/hwmon/ina3221.c
View File

@ -228,7 +228,7 @@ static int ina3221_read_value(struct ina3221_data *ina, unsigned int reg,
* Shunt Voltage Sum register has 14-bit value with 1-bit shift
* Other Shunt Voltage registers have 12 bits with 3-bit shift
*/
if (reg == INA3221_SHUNT_SUM)
if (reg == INA3221_SHUNT_SUM || reg == INA3221_CRIT_SUM)
*val = sign_extend32(regval >> 1, 14);
else
*val = sign_extend32(regval >> 3, 12);
@ -465,7 +465,7 @@ static int ina3221_write_curr(struct device *dev, u32 attr,
* SHUNT_SUM: (1 / 40uV) << 1 = 1 / 20uV
* SHUNT[1-3]: (1 / 40uV) << 3 = 1 / 5uV
*/
if (reg == INA3221_SHUNT_SUM)
if (reg == INA3221_SHUNT_SUM || reg == INA3221_CRIT_SUM)
regval = DIV_ROUND_CLOSEST(voltage_uv, 20) & 0xfffe;
else
regval = DIV_ROUND_CLOSEST(voltage_uv, 5) & 0xfff8;

2
drivers/hwmon/ltc2947-core.c
View File

@ -396,7 +396,7 @@ static int ltc2947_read_temp(struct device *dev, const u32 attr, long *val,
return ret;
/* in milidegrees celcius, temp is given by: */
*val = (__val * 204) + 550;
*val = (__val * 204) + 5500;
return 0;
}

11
drivers/i2c/busses/i2c-cadence.c
View File

@ -852,7 +852,8 @@ static int cdns_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
CDNS_I2C_POLL_US, CDNS_I2C_TIMEOUT_US);
if (ret) {
ret = -EAGAIN;
i2c_recover_bus(adap);
if (id->adap.bus_recovery_info)
i2c_recover_bus(adap);
goto out;
}
@ -1263,8 +1264,13 @@ static int cdns_i2c_probe(struct platform_device *pdev)
id->rinfo.pinctrl = devm_pinctrl_get(&pdev->dev);
if (IS_ERR(id->rinfo.pinctrl)) {
int err = PTR_ERR(id->rinfo.pinctrl);
dev_info(&pdev->dev, "can't get pinctrl, bus recovery not supported\n");
return PTR_ERR(id->rinfo.pinctrl);
if (err != -ENODEV)
return err;
} else {
id->adap.bus_recovery_info = &id->rinfo;
}
id->membase = devm_platform_get_and_ioremap_resource(pdev, 0, &r_mem);
@ -1283,7 +1289,6 @@ static int cdns_i2c_probe(struct platform_device *pdev)
id->adap.retries = 3; /* Default retry value. */
id->adap.algo_data = id;
id->adap.dev.parent = &pdev->dev;
id->adap.bus_recovery_info = &id->rinfo;
init_completion(&id->xfer_done);
snprintf(id->adap.name, sizeof(id->adap.name),
"Cadence I2C at %08lx", (unsigned long)r_mem->start);

6
drivers/i2c/busses/i2c-imx.c
View File

@ -1132,7 +1132,8 @@ static int i2c_imx_read(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs,
int i, result;
unsigned int temp;
int block_data = msgs->flags & I2C_M_RECV_LEN;
int use_dma = i2c_imx->dma && msgs->len >= DMA_THRESHOLD && !block_data;
int use_dma = i2c_imx->dma && msgs->flags & I2C_M_DMA_SAFE &&
msgs->len >= DMA_THRESHOLD && !block_data;
dev_dbg(&i2c_imx->adapter.dev,
"<%s> write slave address: addr=0x%x\n",
@ -1298,7 +1299,8 @@ static int i2c_imx_xfer_common(struct i2c_adapter *adapter,
result = i2c_imx_read(i2c_imx, &msgs[i], is_lastmsg, atomic);
} else {
if (!atomic &&
i2c_imx->dma && msgs[i].len >= DMA_THRESHOLD)
i2c_imx->dma && msgs[i].len >= DMA_THRESHOLD &&
msgs[i].flags & I2C_M_DMA_SAFE)
result = i2c_imx_dma_write(i2c_imx, &msgs[i]);
else
result = i2c_imx_write(i2c_imx, &msgs[i], atomic);

11
drivers/i2c/busses/i2c-npcm7xx.c
View File

@ -2393,8 +2393,17 @@ static struct platform_driver npcm_i2c_bus_driver = {
static int __init npcm_i2c_init(void)
{
int ret;
npcm_i2c_debugfs_dir = debugfs_create_dir("npcm_i2c", NULL);
return platform_driver_register(&npcm_i2c_bus_driver);
ret = platform_driver_register(&npcm_i2c_bus_driver);
if (ret) {
debugfs_remove_recursive(npcm_i2c_debugfs_dir);
return ret;
}
return 0;
}
module_init(npcm_i2c_init);

1
drivers/i2c/busses/i2c-qcom-geni.c
View File

@ -626,7 +626,6 @@ static int geni_i2c_gpi_xfer(struct geni_i2c_dev *gi2c, struct i2c_msg msgs[], i
dev_err(gi2c->se.dev, "I2C timeout gpi flags:%d addr:0x%x\n",
gi2c->cur->flags, gi2c->cur->addr);
gi2c->err = -ETIMEDOUT;
goto err;
}
if (gi2c->err) {

9
drivers/i2c/i2c-core-base.c
View File

@ -467,6 +467,7 @@ static int i2c_device_probe(struct device *dev)
{
struct i2c_client *client = i2c_verify_client(dev);
struct i2c_driver *driver;
bool do_power_on;
int status;
if (!client)
@ -545,8 +546,8 @@ static int i2c_device_probe(struct device *dev)
if (status < 0)
goto err_clear_wakeup_irq;
status = dev_pm_domain_attach(&client->dev,
!i2c_acpi_waive_d0_probe(dev));
do_power_on = !i2c_acpi_waive_d0_probe(dev);
status = dev_pm_domain_attach(&client->dev, do_power_on);
if (status)
goto err_clear_wakeup_irq;
@ -585,7 +586,7 @@ static int i2c_device_probe(struct device *dev)
err_release_driver_resources:
devres_release_group(&client->dev, client->devres_group_id);
err_detach_pm_domain:
dev_pm_domain_detach(&client->dev, !i2c_acpi_waive_d0_probe(dev));
dev_pm_domain_detach(&client->dev, do_power_on);
err_clear_wakeup_irq:
dev_pm_clear_wake_irq(&client->dev);
device_init_wakeup(&client->dev, false);
@ -610,7 +611,7 @@ static void i2c_device_remove(struct device *dev)
devres_release_group(&client->dev, client->devres_group_id);
dev_pm_domain_detach(&client->dev, !i2c_acpi_waive_d0_probe(dev));
dev_pm_domain_detach(&client->dev, true);
dev_pm_clear_wake_irq(&client->dev);
device_init_wakeup(&client->dev, false);

4
drivers/input/touchscreen/raydium_i2c_ts.c
View File

@ -211,12 +211,14 @@ static int raydium_i2c_send(struct i2c_client *client,
error = raydium_i2c_xfer(client, addr, xfer, ARRAY_SIZE(xfer));
if (likely(!error))
return 0;
goto out;
msleep(RM_RETRY_DELAY_MS);
} while (++tries < RM_MAX_RETRIES);
dev_err(&client->dev, "%s failed: %d\n", __func__, error);
out:
kfree(tx_buf);
return error;
}

1
drivers/iommu/intel/dmar.c
View File

@ -820,6 +820,7 @@ int __init dmar_dev_scope_init(void)
info = dmar_alloc_pci_notify_info(dev,
BUS_NOTIFY_ADD_DEVICE);
if (!info) {
pci_dev_put(dev);
return dmar_dev_scope_status;
} else {
dmar_pci_bus_add_dev(info);

73
drivers/iommu/intel/iommu.c
View File

@ -1396,6 +1396,24 @@ static void domain_update_iotlb(struct dmar_domain *domain)
spin_unlock_irqrestore(&domain->lock, flags);
}
/*
* The extra devTLB flush quirk impacts those QAT devices with PCI device
* IDs ranging from 0x4940 to 0x4943. It is exempted from risky_device()
* check because it applies only to the built-in QAT devices and it doesn't
* grant additional privileges.
*/
#define BUGGY_QAT_DEVID_MASK 0x494c
static bool dev_needs_extra_dtlb_flush(struct pci_dev *pdev)
{
if (pdev->vendor != PCI_VENDOR_ID_INTEL)
return false;
if ((pdev->device & 0xfffc) != BUGGY_QAT_DEVID_MASK)
return false;
return true;
}
static void iommu_enable_pci_caps(struct device_domain_info *info)
{
struct pci_dev *pdev;
@ -1478,6 +1496,7 @@ static void __iommu_flush_dev_iotlb(struct device_domain_info *info,
qdep = info->ats_qdep;
qi_flush_dev_iotlb(info->iommu, sid, info->pfsid,
qdep, addr, mask);
quirk_extra_dev_tlb_flush(info, addr, mask, PASID_RID2PASID, qdep);
}
static void iommu_flush_dev_iotlb(struct dmar_domain *domain,
@ -3854,8 +3873,10 @@ static inline bool has_external_pci(void)
struct pci_dev *pdev = NULL;
for_each_pci_dev(pdev)
if (pdev->external_facing)
if (pdev->external_facing) {
pci_dev_put(pdev);
return true;
}
return false;
}
@ -4490,9 +4511,10 @@ static struct iommu_device *intel_iommu_probe_device(struct device *dev)
if (dev_is_pci(dev)) {
if (ecap_dev_iotlb_support(iommu->ecap) &&
pci_ats_supported(pdev) &&
dmar_ats_supported(pdev, iommu))
dmar_ats_supported(pdev, iommu)) {
info->ats_supported = 1;
info->dtlb_extra_inval = dev_needs_extra_dtlb_flush(pdev);
}
if (sm_supported(iommu)) {
if (pasid_supported(iommu)) {
int features = pci_pasid_features(pdev);
@ -4931,3 +4953,48 @@ static void __init check_tylersburg_isoch(void)
pr_warn("Recommended TLB entries for ISOCH unit is 16; your BIOS set %d\n",
vtisochctrl);
}
/*
* Here we deal with a device TLB defect where device may inadvertently issue ATS
* invalidation completion before posted writes initiated with translated address
* that utilized translations matching the invalidation address range, violating
* the invalidation completion ordering.
* Therefore, any use cases that cannot guarantee DMA is stopped before unmap is
* vulnerable to this defect. In other words, any dTLB invalidation initiated not
* under the control of the trusted/privileged host device driver must use this
* quirk.
* Device TLBs are invalidated under the following six conditions:
* 1. Device driver does DMA API unmap IOVA
* 2. Device driver unbind a PASID from a process, sva_unbind_device()
* 3. PASID is torn down, after PASID cache is flushed. e.g. process
* exit_mmap() due to crash
* 4. Under SVA usage, called by mmu_notifier.invalidate_range() where
* VM has to free pages that were unmapped
* 5. Userspace driver unmaps a DMA buffer
* 6. Cache invalidation in vSVA usage (upcoming)
*
* For #1 and #2, device drivers are responsible for stopping DMA traffic
* before unmap/unbind. For #3, iommu driver gets mmu_notifier to
* invalidate TLB the same way as normal user unmap which will use this quirk.
* The dTLB invalidation after PASID cache flush does not need this quirk.
*
* As a reminder, #6 will *NEED* this quirk as we enable nested translation.
*/
void quirk_extra_dev_tlb_flush(struct device_domain_info *info,
unsigned long address, unsigned long mask,
u32 pasid, u16 qdep)
{
u16 sid;
if (likely(!info->dtlb_extra_inval))
return;
sid = PCI_DEVID(info->bus, info->devfn);
if (pasid == PASID_RID2PASID) {
qi_flush_dev_iotlb(info->iommu, sid, info->pfsid,
qdep, address, mask);
} else {
qi_flush_dev_iotlb_pasid(info->iommu, sid, info->pfsid,
pasid, qdep, address, mask);
}
}

4
drivers/iommu/intel/iommu.h
View File

@ -623,6 +623,7 @@ struct device_domain_info {
u8 pri_enabled:1;
u8 ats_supported:1;
u8 ats_enabled:1;
u8 dtlb_extra_inval:1; /* Quirk for devices need extra flush */
u8 ats_qdep;
struct device *dev; /* it's NULL for PCIe-to-PCI bridge */
struct intel_iommu *iommu; /* IOMMU used by this device */
@ -728,6 +729,9 @@ void qi_flush_piotlb(struct intel_iommu *iommu, u16 did, u32 pasid, u64 addr,
void qi_flush_dev_iotlb_pasid(struct intel_iommu *iommu, u16 sid, u16 pfsid,
u32 pasid, u16 qdep, u64 addr,
unsigned int size_order);
void quirk_extra_dev_tlb_flush(struct device_domain_info *info,
unsigned long address, unsigned long pages,
u32 pasid, u16 qdep);
void qi_flush_pasid_cache(struct intel_iommu *iommu, u16 did, u64 granu,
u32 pasid);

19
drivers/iommu/intel/svm.c
View File

@ -184,10 +184,13 @@ static void __flush_svm_range_dev(struct intel_svm *svm,
return;
qi_flush_piotlb(sdev->iommu, sdev->did, svm->pasid, address, pages, ih);
if (info->ats_enabled)
if (info->ats_enabled) {
qi_flush_dev_iotlb_pasid(sdev->iommu, sdev->sid, info->pfsid,
svm->pasid, sdev->qdep, address,
order_base_2(pages));
quirk_extra_dev_tlb_flush(info, address, order_base_2(pages),
svm->pasid, sdev->qdep);
}
}
static void intel_flush_svm_range_dev(struct intel_svm *svm,
@ -745,12 +748,16 @@ static irqreturn_t prq_event_thread(int irq, void *d)
* If prq is to be handled outside iommu driver via receiver of
* the fault notifiers, we skip the page response here.
*/
if (!pdev || intel_svm_prq_report(iommu, &pdev->dev, req))
handle_bad_prq_event(iommu, req, QI_RESP_INVALID);
if (!pdev)
goto bad_req;
trace_prq_report(iommu, &pdev->dev, req->qw_0, req->qw_1,
req->priv_data[0], req->priv_data[1],
iommu->prq_seq_number++);
if (intel_svm_prq_report(iommu, &pdev->dev, req))
handle_bad_prq_event(iommu, req, QI_RESP_INVALID);
else
trace_prq_report(iommu, &pdev->dev, req->qw_0, req->qw_1,
req->priv_data[0], req->priv_data[1],
iommu->prq_seq_number++);
pci_dev_put(pdev);
prq_advance:
head = (head + sizeof(*req)) & PRQ_RING_MASK;
}

64
drivers/media/common/videobuf2/frame_vector.c
View File

@ -35,11 +35,7 @@
int get_vaddr_frames(unsigned long start, unsigned int nr_frames,
struct frame_vector *vec)
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
int ret_pin_user_pages_fast = 0;
int ret = 0;
int err;
int ret;
if (nr_frames == 0)
return 0;
@ -52,57 +48,17 @@ int get_vaddr_frames(unsigned long start, unsigned int nr_frames,
ret = pin_user_pages_fast(start, nr_frames,
FOLL_FORCE | FOLL_WRITE | FOLL_LONGTERM,
(struct page **)(vec->ptrs));
if (ret > 0) {
vec->got_ref = true;
vec->is_pfns = false;
goto out_unlocked;
}
ret_pin_user_pages_fast = ret;
vec->got_ref = true;
vec->is_pfns = false;
vec->nr_frames = ret;
mmap_read_lock(mm);
vec->got_ref = false;
vec->is_pfns = true;
ret = 0;
do {
unsigned long *nums = frame_vector_pfns(vec);
if (likely(ret > 0))
return ret;
vma = vma_lookup(mm, start);
if (!vma)
break;
while (ret < nr_frames && start + PAGE_SIZE <= vma->vm_end) {
err = follow_pfn(vma, start, &nums[ret]);
if (err) {
if (ret)
goto out;
// If follow_pfn() returns -EINVAL, then this
// is not an IO mapping or a raw PFN mapping.
// In that case, return the original error from
// pin_user_pages_fast(). Otherwise this
// function would return -EINVAL when
// pin_user_pages_fast() returned -ENOMEM,
// which makes debugging hard.
if (err == -EINVAL && ret_pin_user_pages_fast)
ret = ret_pin_user_pages_fast;
else
ret = err;
goto out;
}
start += PAGE_SIZE;
ret++;
}
/* Bail out if VMA doesn't completely cover the tail page. */
if (start < vma->vm_end)
break;
} while (ret < nr_frames);
out:
mmap_read_unlock(mm);
out_unlocked:
if (!ret)
ret = -EFAULT;
if (ret > 0)
vec->nr_frames = ret;
return ret;
/* This used to (racily) return non-refcounted pfns. Let people know */
WARN_ONCE(1, "get_vaddr_frames() cannot follow VM_IO mapping");
vec->nr_frames = 0;
return ret ? ret : -EFAULT;
}
EXPORT_SYMBOL(get_vaddr_frames);

102
drivers/media/common/videobuf2/videobuf2-core.c
View File

@ -813,7 +813,13 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
num_buffers = max_t(unsigned int, *count, q->min_buffers_needed);
num_buffers = min_t(unsigned int, num_buffers, VB2_MAX_FRAME);
memset(q->alloc_devs, 0, sizeof(q->alloc_devs));
/*
* Set this now to ensure that drivers see the correct q->memory value
* in the queue_setup op.
*/
mutex_lock(&q->mmap_lock);
q->memory = memory;
mutex_unlock(&q->mmap_lock);
set_queue_coherency(q, non_coherent_mem);
/*
@ -823,22 +829,27 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
ret = call_qop(q, queue_setup, q, &num_buffers, &num_planes,
plane_sizes, q->alloc_devs);
if (ret)
return ret;
goto error;
/* Check that driver has set sane values */
if (WARN_ON(!num_planes))
return -EINVAL;
if (WARN_ON(!num_planes)) {
ret = -EINVAL;
goto error;
}
for (i = 0; i < num_planes; i++)
if (WARN_ON(!plane_sizes[i]))
return -EINVAL;
if (WARN_ON(!plane_sizes[i])) {
ret = -EINVAL;
goto error;
}
/* Finally, allocate buffers and video memory */
allocated_buffers =
__vb2_queue_alloc(q, memory, num_buffers, num_planes, plane_sizes);
if (allocated_buffers == 0) {
dprintk(q, 1, "memory allocation failed\n");
return -ENOMEM;
ret = -ENOMEM;
goto error;
}
/*
@ -879,7 +890,8 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
if (ret < 0) {
/*
* Note: __vb2_queue_free() will subtract 'allocated_buffers'
* from q->num_buffers.
* from q->num_buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
__vb2_queue_free(q, allocated_buffers);
mutex_unlock(&q->mmap_lock);
@ -895,6 +907,12 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
q->waiting_for_buffers = !q->is_output;
return 0;
error:
mutex_lock(&q->mmap_lock);
q->memory = VB2_MEMORY_UNKNOWN;
mutex_unlock(&q->mmap_lock);
return ret;
}
EXPORT_SYMBOL_GPL(vb2_core_reqbufs);
@ -906,6 +924,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int num_planes = 0, num_buffers, allocated_buffers;
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
bool no_previous_buffers = !q->num_buffers;
int ret;
if (q->num_buffers == VB2_MAX_FRAME) {
@ -913,13 +932,19 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
return -ENOBUFS;
}
if (!q->num_buffers) {
if (no_previous_buffers) {
if (q->waiting_in_dqbuf && *count) {
dprintk(q, 1, "another dup()ped fd is waiting for a buffer\n");
return -EBUSY;
}
memset(q->alloc_devs, 0, sizeof(q->alloc_devs));
/*
* Set this now to ensure that drivers see the correct q->memory
* value in the queue_setup op.
*/
mutex_lock(&q->mmap_lock);
q->memory = memory;
mutex_unlock(&q->mmap_lock);
q->waiting_for_buffers = !q->is_output;
set_queue_coherency(q, non_coherent_mem);
} else {
@ -945,14 +970,15 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
ret = call_qop(q, queue_setup, q, &num_buffers,
&num_planes, plane_sizes, q->alloc_devs);
if (ret)
return ret;
goto error;
/* Finally, allocate buffers and video memory */
allocated_buffers = __vb2_queue_alloc(q, memory, num_buffers,
num_planes, plane_sizes);
if (allocated_buffers == 0) {
dprintk(q, 1, "memory allocation failed\n");
return -ENOMEM;
ret = -ENOMEM;
goto error;
}
/*
@ -983,7 +1009,8 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
if (ret < 0) {
/*
* Note: __vb2_queue_free() will subtract 'allocated_buffers'
* from q->num_buffers.
* from q->num_buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
__vb2_queue_free(q, allocated_buffers);
mutex_unlock(&q->mmap_lock);
@ -998,6 +1025,14 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*count = allocated_buffers;
return 0;
error:
if (no_previous_buffers) {
mutex_lock(&q->mmap_lock);
q->memory = VB2_MEMORY_UNKNOWN;
mutex_unlock(&q->mmap_lock);
}
return ret;
}
EXPORT_SYMBOL_GPL(vb2_core_create_bufs);
@ -2164,6 +2199,22 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
struct vb2_buffer *vb;
unsigned int buffer, plane;
/*
* Sanity checks to ensure the lock is held, MEMORY_MMAP is
* used and fileio isn't active.
*/
lockdep_assert_held(&q->mmap_lock);
if (q->memory != VB2_MEMORY_MMAP) {
dprintk(q, 1, "queue is not currently set up for mmap\n");
return -EINVAL;
}
if (vb2_fileio_is_active(q)) {
dprintk(q, 1, "file io in progress\n");
return -EBUSY;
}
/*
* Go over all buffers and their planes, comparing the given offset
* with an offset assigned to each plane. If a match is found,
@ -2265,11 +2316,6 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
int ret;
unsigned long length;
if (q->memory != VB2_MEMORY_MMAP) {
dprintk(q, 1, "queue is not currently set up for mmap\n");
return -EINVAL;
}
/*
* Check memory area access mode.
*/
@ -2291,14 +2337,9 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
mutex_lock(&q->mmap_lock);
if (vb2_fileio_is_active(q)) {
dprintk(q, 1, "mmap: file io in progress\n");
ret = -EBUSY;
goto unlock;
}
/*
* Find the plane corresponding to the offset passed by userspace.
* Find the plane corresponding to the offset passed by userspace. This
* will return an error if not MEMORY_MMAP or file I/O is in progress.
*/
ret = __find_plane_by_offset(q, off, &buffer, &plane);
if (ret)
@ -2351,22 +2392,25 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
void *vaddr;
int ret;
if (q->memory != VB2_MEMORY_MMAP) {
dprintk(q, 1, "queue is not currently set up for mmap\n");
return -EINVAL;
}
mutex_lock(&q->mmap_lock);
/*
* Find the plane corresponding to the offset passed by userspace.
* Find the plane corresponding to the offset passed by userspace. This
* will return an error if not MEMORY_MMAP or file I/O is in progress.
*/
ret = __find_plane_by_offset(q, off, &buffer, &plane);
if (ret)
return ret;
goto unlock;
vb = q->bufs[buffer];
vaddr = vb2_plane_vaddr(vb, plane);
mutex_unlock(&q->mmap_lock);
return vaddr ? (unsigned long)vaddr : -EINVAL;
unlock:
mutex_unlock(&q->mmap_lock);
return ret;
}
EXPORT_SYMBOL_GPL(vb2_get_unmapped_area);
#endif

9
drivers/mmc/core/core.c
View File

@ -1484,6 +1484,11 @@ void mmc_init_erase(struct mmc_card *card)
card->pref_erase = 0;
}
static bool is_trim_arg(unsigned int arg)
{
return (arg & MMC_TRIM_OR_DISCARD_ARGS) && arg != MMC_DISCARD_ARG;
}
static unsigned int mmc_mmc_erase_timeout(struct mmc_card *card,
unsigned int arg, unsigned int qty)
{
@ -1766,7 +1771,7 @@ int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr,
!(card->ext_csd.sec_feature_support & EXT_CSD_SEC_ER_EN))
return -EOPNOTSUPP;
if (mmc_card_mmc(card) && (arg & MMC_TRIM_ARGS) &&
if (mmc_card_mmc(card) && is_trim_arg(arg) &&
!(card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN))
return -EOPNOTSUPP;
@ -1796,7 +1801,7 @@ int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr,
* identified by the card->eg_boundary flag.
*/
rem = card->erase_size - (from % card->erase_size);
if ((arg & MMC_TRIM_ARGS) && (card->eg_boundary) && (nr > rem)) {
if ((arg & MMC_TRIM_OR_DISCARD_ARGS) && card->eg_boundary && nr > rem) {
err = mmc_do_erase(card, from, from + rem - 1, arg);
from += rem;
if ((err) || (to <= from))

3
drivers/mmc/core/mmc_test.c
View File

@ -3179,7 +3179,8 @@ static int __mmc_test_register_dbgfs_file(struct mmc_card *card,
struct mmc_test_dbgfs_file *df;
if (card->debugfs_root)
debugfs_create_file(name, mode, card->debugfs_root, card, fops);
file = debugfs_create_file(name, mode, card->debugfs_root,
card, fops);
df = kmalloc(sizeof(*df), GFP_KERNEL);
if (!df) {

6
drivers/mmc/host/mtk-sd.c
View File

@ -2588,13 +2588,11 @@ static int msdc_of_clock_parse(struct platform_device *pdev,
return PTR_ERR(host->src_clk_cg);
}
host->sys_clk_cg = devm_clk_get_optional(&pdev->dev, "sys_cg");
/* If present, always enable for this clock gate */
host->sys_clk_cg = devm_clk_get_optional_enabled(&pdev->dev, "sys_cg");
if (IS_ERR(host->sys_clk_cg))
host->sys_clk_cg = NULL;
/* If present, always enable for this clock gate */
clk_prepare_enable(host->sys_clk_cg);
host->bulk_clks[0].id = "pclk_cg";
host->bulk_clks[1].id = "axi_cg";
host->bulk_clks[2].id = "ahb_cg";

2
drivers/mmc/host/sdhci-esdhc-imx.c
View File

@ -1512,7 +1512,7 @@ static void esdhc_cqe_enable(struct mmc_host *mmc)
* system resume back.
*/
cqhci_writel(cq_host, 0, CQHCI_CTL);
if (cqhci_readl(cq_host, CQHCI_CTL) && CQHCI_HALT)
if (cqhci_readl(cq_host, CQHCI_CTL) & CQHCI_HALT)
dev_err(mmc_dev(host->mmc),
"failed to exit halt state when enable CQE\n");

4
drivers/mmc/host/sdhci-sprd.c
View File

@ -470,7 +470,7 @@ static int sdhci_sprd_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios)
}
if (IS_ERR(sprd_host->pinctrl))
return 0;
goto reset;
switch (ios->signal_voltage) {
case MMC_SIGNAL_VOLTAGE_180:
@ -498,6 +498,8 @@ static int sdhci_sprd_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios)
/* Wait for 300 ~ 500 us for pin state stable */
usleep_range(300, 500);
reset:
sdhci_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
return 0;

61
drivers/mmc/host/sdhci.c
View File

@ -373,6 +373,7 @@ static void sdhci_init(struct sdhci_host *host, int soft)
if (soft) {
/* force clock reconfiguration */
host->clock = 0;
host->reinit_uhs = true;
mmc->ops->set_ios(mmc, &mmc->ios);
}
}
@ -2293,11 +2294,46 @@ void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing)
}
EXPORT_SYMBOL_GPL(sdhci_set_uhs_signaling);
static bool sdhci_timing_has_preset(unsigned char timing)
{
switch (timing) {
case MMC_TIMING_UHS_SDR12:
case MMC_TIMING_UHS_SDR25:
case MMC_TIMING_UHS_SDR50:
case MMC_TIMING_UHS_SDR104:
case MMC_TIMING_UHS_DDR50:
case MMC_TIMING_MMC_DDR52:
return true;
};
return false;
}
static bool sdhci_preset_needed(struct sdhci_host *host, unsigned char timing)
{
return !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN) &&
sdhci_timing_has_preset(timing);
}
static bool sdhci_presetable_values_change(struct sdhci_host *host, struct mmc_ios *ios)
{
/*
* Preset Values are: Driver Strength, Clock Generator and SDCLK/RCLK
* Frequency. Check if preset values need to be enabled, or the Driver
* Strength needs updating. Note, clock changes are handled separately.
*/
return !host->preset_enabled &&
(sdhci_preset_needed(host, ios->timing) || host->drv_type != ios->drv_type);
}
void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct sdhci_host *host = mmc_priv(mmc);
bool reinit_uhs = host->reinit_uhs;
bool turning_on_clk = false;
u8 ctrl;
host->reinit_uhs = false;
if (ios->power_mode == MMC_POWER_UNDEFINED)
return;
@ -2323,6 +2359,8 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
sdhci_enable_preset_value(host, false);
if (!ios->clock || ios->clock != host->clock) {
turning_on_clk = ios->clock && !host->clock;
host->ops->set_clock(host, ios->clock);
host->clock = ios->clock;
@ -2349,6 +2387,17 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
host->ops->set_bus_width(host, ios->bus_width);
/*
* Special case to avoid multiple clock changes during voltage
* switching.
*/
if (!reinit_uhs &&
turning_on_clk &&
host->timing == ios->timing &&
host->version >= SDHCI_SPEC_300 &&
!sdhci_presetable_values_change(host, ios))
return;
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
if (!(host->quirks & SDHCI_QUIRK_NO_HISPD_BIT)) {
@ -2392,6 +2441,7 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);
host->drv_type = ios->drv_type;
} else {
/*
* According to SDHC Spec v3.00, if the Preset Value
@ -2419,19 +2469,14 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
host->ops->set_uhs_signaling(host, ios->timing);
host->timing = ios->timing;
if (!(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN) &&
((ios->timing == MMC_TIMING_UHS_SDR12) ||
(ios->timing == MMC_TIMING_UHS_SDR25) ||
(ios->timing == MMC_TIMING_UHS_SDR50) ||
(ios->timing == MMC_TIMING_UHS_SDR104) ||
(ios->timing == MMC_TIMING_UHS_DDR50) ||
(ios->timing == MMC_TIMING_MMC_DDR52))) {
if (sdhci_preset_needed(host, ios->timing)) {
u16 preset;
sdhci_enable_preset_value(host, true);
preset = sdhci_get_preset_value(host);
ios->drv_type = FIELD_GET(SDHCI_PRESET_DRV_MASK,
preset);
host->drv_type = ios->drv_type;
}
/* Re-enable SD Clock */
@ -3768,6 +3813,7 @@ int sdhci_resume_host(struct sdhci_host *host)
sdhci_init(host, 0);
host->pwr = 0;
host->clock = 0;
host->reinit_uhs = true;
mmc->ops->set_ios(mmc, &mmc->ios);
} else {
sdhci_init(host, (mmc->pm_flags & MMC_PM_KEEP_POWER));
@ -3830,6 +3876,7 @@ int sdhci_runtime_resume_host(struct sdhci_host *host, int soft_reset)
/* Force clock and power re-program */
host->pwr = 0;
host->clock = 0;
host->reinit_uhs = true;
mmc->ops->start_signal_voltage_switch(mmc, &mmc->ios);
mmc->ops->set_ios(mmc, &mmc->ios);

2
drivers/mmc/host/sdhci.h
View File

@ -524,6 +524,8 @@ struct sdhci_host {
unsigned int clock; /* Current clock (MHz) */
u8 pwr; /* Current voltage */
u8 drv_type; /* Current UHS-I driver type */
bool reinit_uhs; /* Force UHS-related re-initialization */
bool runtime_suspended; /* Host is runtime suspended */
bool bus_on; /* Bus power prevents runtime suspend */

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