diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt index 0b7d8576001c..2d80b60eeabe 100644 --- a/Documentation/devicetree/bindings/usb/usb-xhci.txt +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt @@ -27,6 +27,7 @@ Required properties: Optional properties: - clocks: reference to a clock - usb3-lpm-capable: determines if platform is USB3 LPM capable + - quirk-broken-port-ped: set if the controller has broken port disable mechanism Example: usb@f0931000 { diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt index 8f3d96af81d7..1f6e101e299a 100644 --- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt @@ -6,10 +6,11 @@ occurred. Required properties: - compatible : should be one among the following - (a) "samsung,s3c2410-wdt" for Exynos4 and previous SoCs - (b) "samsung,exynos5250-wdt" for Exynos5250 - (c) "samsung,exynos5420-wdt" for Exynos5420 - (c) "samsung,exynos7-wdt" for Exynos7 + - "samsung,s3c2410-wdt" for S3C2410 + - "samsung,s3c6410-wdt" for S3C6410, S5PV210 and Exynos4 + - "samsung,exynos5250-wdt" for Exynos5250 + - "samsung,exynos5420-wdt" for Exynos5420 + - "samsung,exynos7-wdt" for Exynos7 - reg : base physical address of the controller and length of memory mapped region. diff --git a/Documentation/process/stable-kernel-rules.rst b/Documentation/process/stable-kernel-rules.rst index 11ec2d93a5e0..61e9c78bd6d1 100644 --- a/Documentation/process/stable-kernel-rules.rst +++ b/Documentation/process/stable-kernel-rules.rst @@ -124,7 +124,7 @@ specified in the following format in the sign-off area: .. code-block:: none - Cc: # 3.3.x- + Cc: # 3.3.x The tag has the meaning of: diff --git a/Makefile b/Makefile index 4ebd511dee58..52858726495b 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ VERSION = 4 PATCHLEVEL = 10 -SUBLEVEL = 9 +SUBLEVEL = 10 EXTRAVERSION = NAME = Fearless Coyote @@ -370,7 +370,7 @@ LDFLAGS_MODULE = CFLAGS_KERNEL = AFLAGS_KERNEL = LDFLAGS_vmlinux = -CFLAGS_GCOV = -fprofile-arcs -ftest-coverage -fno-tree-loop-im -Wno-maybe-uninitialized +CFLAGS_GCOV := -fprofile-arcs -ftest-coverage -fno-tree-loop-im $(call cc-disable-warning,maybe-uninitialized,) CFLAGS_KCOV := $(call cc-option,-fsanitize-coverage=trace-pc,) @@ -651,6 +651,12 @@ KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0409, \ # Tell gcc to never replace conditional load with a non-conditional one KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) +# check for 'asm goto' +ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y) + KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO + KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO +endif + include scripts/Makefile.gcc-plugins ifdef CONFIG_READABLE_ASM @@ -796,12 +802,6 @@ KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types) # use the deterministic mode of AR if available KBUILD_ARFLAGS := $(call ar-option,D) -# check for 'asm goto' -ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y) - KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO - KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO -endif - include scripts/Makefile.kasan include scripts/Makefile.extrawarn include scripts/Makefile.ubsan diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c index 7e45f69a0ddc..8e8d20cdbce7 100644 --- a/arch/arm/kernel/armksyms.c +++ b/arch/arm/kernel/armksyms.c @@ -178,6 +178,6 @@ EXPORT_SYMBOL(__pv_offset); #endif #ifdef CONFIG_HAVE_ARM_SMCCC -EXPORT_SYMBOL(arm_smccc_smc); -EXPORT_SYMBOL(arm_smccc_hvc); +EXPORT_SYMBOL(__arm_smccc_smc); +EXPORT_SYMBOL(__arm_smccc_hvc); #endif diff --git a/arch/arm/kernel/smccc-call.S b/arch/arm/kernel/smccc-call.S index 2e48b674aab1..e5d43066b889 100644 --- a/arch/arm/kernel/smccc-call.S +++ b/arch/arm/kernel/smccc-call.S @@ -46,17 +46,19 @@ UNWIND( .fnend) /* * void smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2, * unsigned long a3, unsigned long a4, unsigned long a5, - * unsigned long a6, unsigned long a7, struct arm_smccc_res *res) + * unsigned long a6, unsigned long a7, struct arm_smccc_res *res, + * struct arm_smccc_quirk *quirk) */ -ENTRY(arm_smccc_smc) +ENTRY(__arm_smccc_smc) SMCCC SMCCC_SMC -ENDPROC(arm_smccc_smc) +ENDPROC(__arm_smccc_smc) /* * void smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2, * unsigned long a3, unsigned long a4, unsigned long a5, - * unsigned long a6, unsigned long a7, struct arm_smccc_res *res) + * unsigned long a6, unsigned long a7, struct arm_smccc_res *res, + * struct arm_smccc_quirk *quirk) */ -ENTRY(arm_smccc_hvc) +ENTRY(__arm_smccc_hvc) SMCCC SMCCC_HVC -ENDPROC(arm_smccc_hvc) +ENDPROC(__arm_smccc_hvc) diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c index a5265edbeeab..2fd5c135e8a4 100644 --- a/arch/arm/kvm/mmu.c +++ b/arch/arm/kvm/mmu.c @@ -292,11 +292,18 @@ static void unmap_stage2_range(struct kvm *kvm, phys_addr_t start, u64 size) phys_addr_t addr = start, end = start + size; phys_addr_t next; + assert_spin_locked(&kvm->mmu_lock); pgd = kvm->arch.pgd + stage2_pgd_index(addr); do { next = stage2_pgd_addr_end(addr, end); if (!stage2_pgd_none(*pgd)) unmap_stage2_puds(kvm, pgd, addr, next); + /* + * If the range is too large, release the kvm->mmu_lock + * to prevent starvation and lockup detector warnings. + */ + if (next != end) + cond_resched_lock(&kvm->mmu_lock); } while (pgd++, addr = next, addr != end); } @@ -803,6 +810,7 @@ void stage2_unmap_vm(struct kvm *kvm) int idx; idx = srcu_read_lock(&kvm->srcu); + down_read(¤t->mm->mmap_sem); spin_lock(&kvm->mmu_lock); slots = kvm_memslots(kvm); @@ -810,6 +818,7 @@ void stage2_unmap_vm(struct kvm *kvm) stage2_unmap_memslot(kvm, memslot); spin_unlock(&kvm->mmu_lock); + up_read(¤t->mm->mmap_sem); srcu_read_unlock(&kvm->srcu, idx); } @@ -829,7 +838,10 @@ void kvm_free_stage2_pgd(struct kvm *kvm) if (kvm->arch.pgd == NULL) return; + spin_lock(&kvm->mmu_lock); unmap_stage2_range(kvm, 0, KVM_PHYS_SIZE); + spin_unlock(&kvm->mmu_lock); + /* Free the HW pgd, one page at a time */ free_pages_exact(kvm->arch.pgd, S2_PGD_SIZE); kvm->arch.pgd = NULL; @@ -1804,6 +1816,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, (KVM_PHYS_SIZE >> PAGE_SHIFT)) return -EFAULT; + down_read(¤t->mm->mmap_sem); /* * A memory region could potentially cover multiple VMAs, and any holes * between them, so iterate over all of them to find out if we can map @@ -1847,8 +1860,10 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, pa += vm_start - vma->vm_start; /* IO region dirty page logging not allowed */ - if (memslot->flags & KVM_MEM_LOG_DIRTY_PAGES) - return -EINVAL; + if (memslot->flags & KVM_MEM_LOG_DIRTY_PAGES) { + ret = -EINVAL; + goto out; + } ret = kvm_phys_addr_ioremap(kvm, gpa, pa, vm_end - vm_start, @@ -1860,7 +1875,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, } while (hva < reg_end); if (change == KVM_MR_FLAGS_ONLY) - return ret; + goto out; spin_lock(&kvm->mmu_lock); if (ret) @@ -1868,6 +1883,8 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, else stage2_flush_memslot(kvm, memslot); spin_unlock(&kvm->mmu_lock); +out: + up_read(¤t->mm->mmap_sem); return ret; } diff --git a/arch/arm64/kernel/arm64ksyms.c b/arch/arm64/kernel/arm64ksyms.c index 78f368039c79..e9c4dc9e0ada 100644 --- a/arch/arm64/kernel/arm64ksyms.c +++ b/arch/arm64/kernel/arm64ksyms.c @@ -73,5 +73,5 @@ NOKPROBE_SYMBOL(_mcount); #endif /* arm-smccc */ -EXPORT_SYMBOL(arm_smccc_smc); -EXPORT_SYMBOL(arm_smccc_hvc); +EXPORT_SYMBOL(__arm_smccc_smc); +EXPORT_SYMBOL(__arm_smccc_hvc); diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c index bc049afc73a7..b3bb7ef97bc8 100644 --- a/arch/arm64/kernel/asm-offsets.c +++ b/arch/arm64/kernel/asm-offsets.c @@ -143,8 +143,11 @@ int main(void) DEFINE(SLEEP_STACK_DATA_SYSTEM_REGS, offsetof(struct sleep_stack_data, system_regs)); DEFINE(SLEEP_STACK_DATA_CALLEE_REGS, offsetof(struct sleep_stack_data, callee_saved_regs)); #endif - DEFINE(ARM_SMCCC_RES_X0_OFFS, offsetof(struct arm_smccc_res, a0)); - DEFINE(ARM_SMCCC_RES_X2_OFFS, offsetof(struct arm_smccc_res, a2)); + DEFINE(ARM_SMCCC_RES_X0_OFFS, offsetof(struct arm_smccc_res, a0)); + DEFINE(ARM_SMCCC_RES_X2_OFFS, offsetof(struct arm_smccc_res, a2)); + DEFINE(ARM_SMCCC_QUIRK_ID_OFFS, offsetof(struct arm_smccc_quirk, id)); + DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS, offsetof(struct arm_smccc_quirk, state)); + BLANK(); DEFINE(HIBERN_PBE_ORIG, offsetof(struct pbe, orig_address)); DEFINE(HIBERN_PBE_ADDR, offsetof(struct pbe, address)); diff --git a/arch/arm64/kernel/smccc-call.S b/arch/arm64/kernel/smccc-call.S index ae0496fa4235..62522342e1e4 100644 --- a/arch/arm64/kernel/smccc-call.S +++ b/arch/arm64/kernel/smccc-call.S @@ -12,6 +12,7 @@ * */ #include +#include #include .macro SMCCC instr @@ -20,24 +21,32 @@ ldr x4, [sp] stp x0, x1, [x4, #ARM_SMCCC_RES_X0_OFFS] stp x2, x3, [x4, #ARM_SMCCC_RES_X2_OFFS] - ret + ldr x4, [sp, #8] + cbz x4, 1f /* no quirk structure */ + ldr x9, [x4, #ARM_SMCCC_QUIRK_ID_OFFS] + cmp x9, #ARM_SMCCC_QUIRK_QCOM_A6 + b.ne 1f + str x6, [x4, ARM_SMCCC_QUIRK_STATE_OFFS] +1: ret .cfi_endproc .endm /* * void arm_smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2, * unsigned long a3, unsigned long a4, unsigned long a5, - * unsigned long a6, unsigned long a7, struct arm_smccc_res *res) + * unsigned long a6, unsigned long a7, struct arm_smccc_res *res, + * struct arm_smccc_quirk *quirk) */ -ENTRY(arm_smccc_smc) +ENTRY(__arm_smccc_smc) SMCCC smc -ENDPROC(arm_smccc_smc) +ENDPROC(__arm_smccc_smc) /* * void arm_smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2, * unsigned long a3, unsigned long a4, unsigned long a5, - * unsigned long a6, unsigned long a7, struct arm_smccc_res *res) + * unsigned long a6, unsigned long a7, struct arm_smccc_res *res, + * struct arm_smccc_quirk *quirk) */ -ENTRY(arm_smccc_hvc) +ENTRY(__arm_smccc_hvc) SMCCC hvc -ENDPROC(arm_smccc_hvc) +ENDPROC(__arm_smccc_hvc) diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 156169c6981b..ed0f50b565c3 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -41,7 +41,20 @@ #include #include -static const char *fault_name(unsigned int esr); +struct fault_info { + int (*fn)(unsigned long addr, unsigned int esr, + struct pt_regs *regs); + int sig; + int code; + const char *name; +}; + +static const struct fault_info fault_info[]; + +static inline const struct fault_info *esr_to_fault_info(unsigned int esr) +{ + return fault_info + (esr & 63); +} #ifdef CONFIG_KPROBES static inline int notify_page_fault(struct pt_regs *regs, unsigned int esr) @@ -196,10 +209,12 @@ static void __do_user_fault(struct task_struct *tsk, unsigned long addr, struct pt_regs *regs) { struct siginfo si; + const struct fault_info *inf; if (unhandled_signal(tsk, sig) && show_unhandled_signals_ratelimited()) { + inf = esr_to_fault_info(esr); pr_info("%s[%d]: unhandled %s (%d) at 0x%08lx, esr 0x%03x\n", - tsk->comm, task_pid_nr(tsk), fault_name(esr), sig, + tsk->comm, task_pid_nr(tsk), inf->name, sig, addr, esr); show_pte(tsk->mm, addr); show_regs(regs); @@ -218,14 +233,16 @@ static void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *re { struct task_struct *tsk = current; struct mm_struct *mm = tsk->active_mm; + const struct fault_info *inf; /* * If we are in kernel mode at this point, we have no context to * handle this fault with. */ - if (user_mode(regs)) - __do_user_fault(tsk, addr, esr, SIGSEGV, SEGV_MAPERR, regs); - else + if (user_mode(regs)) { + inf = esr_to_fault_info(esr); + __do_user_fault(tsk, addr, esr, inf->sig, inf->code, regs); + } else __do_kernel_fault(mm, addr, esr, regs); } @@ -487,12 +504,7 @@ static int do_bad(unsigned long addr, unsigned int esr, struct pt_regs *regs) return 1; } -static const struct fault_info { - int (*fn)(unsigned long addr, unsigned int esr, struct pt_regs *regs); - int sig; - int code; - const char *name; -} fault_info[] = { +static const struct fault_info fault_info[] = { { do_bad, SIGBUS, 0, "ttbr address size fault" }, { do_bad, SIGBUS, 0, "level 1 address size fault" }, { do_bad, SIGBUS, 0, "level 2 address size fault" }, @@ -559,19 +571,13 @@ static const struct fault_info { { do_bad, SIGBUS, 0, "unknown 63" }, }; -static const char *fault_name(unsigned int esr) -{ - const struct fault_info *inf = fault_info + (esr & 63); - return inf->name; -} - /* * Dispatch a data abort to the relevant handler. */ asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr, struct pt_regs *regs) { - const struct fault_info *inf = fault_info + (esr & 63); + const struct fault_info *inf = esr_to_fault_info(esr); struct siginfo info; if (!inf->fn(addr, esr, regs)) diff --git a/arch/metag/include/asm/uaccess.h b/arch/metag/include/asm/uaccess.h index 273e61225c27..07238b39638c 100644 --- a/arch/metag/include/asm/uaccess.h +++ b/arch/metag/include/asm/uaccess.h @@ -197,20 +197,21 @@ extern long __must_check strnlen_user(const char __user *src, long count); #define strlen_user(str) strnlen_user(str, 32767) -extern unsigned long __must_check __copy_user_zeroing(void *to, - const void __user *from, - unsigned long n); +extern unsigned long raw_copy_from_user(void *to, const void __user *from, + unsigned long n); static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) { + unsigned long res = n; if (likely(access_ok(VERIFY_READ, from, n))) - return __copy_user_zeroing(to, from, n); - memset(to, 0, n); - return n; + res = raw_copy_from_user(to, from, n); + if (unlikely(res)) + memset(to + (n - res), 0, res); + return res; } -#define __copy_from_user(to, from, n) __copy_user_zeroing(to, from, n) +#define __copy_from_user(to, from, n) raw_copy_from_user(to, from, n) #define __copy_from_user_inatomic __copy_from_user extern unsigned long __must_check __copy_user(void __user *to, diff --git a/arch/metag/lib/usercopy.c b/arch/metag/lib/usercopy.c index b3ebfe9c8e88..2792fc621088 100644 --- a/arch/metag/lib/usercopy.c +++ b/arch/metag/lib/usercopy.c @@ -29,7 +29,6 @@ COPY \ "1:\n" \ " .section .fixup,\"ax\"\n" \ - " MOV D1Ar1,#0\n" \ FIXUP \ " MOVT D1Ar1,#HI(1b)\n" \ " JUMP D1Ar1,#LO(1b)\n" \ @@ -260,27 +259,31 @@ "MGETL D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ "22:\n" \ "MSETL [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ - "SUB %3, %3, #32\n" \ "23:\n" \ - "MGETL D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ + "SUB %3, %3, #32\n" \ "24:\n" \ + "MGETL D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ + "25:\n" \ "MSETL [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "26:\n" \ "SUB %3, %3, #32\n" \ "DCACHE [%1+#-64], D0Ar6\n" \ "BR $Lloop"id"\n" \ \ "MOV RAPF, %1\n" \ - "25:\n" \ + "27:\n" \ "MGETL D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ - "26:\n" \ + "28:\n" \ "MSETL [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "29:\n" \ "SUB %3, %3, #32\n" \ - "27:\n" \ + "30:\n" \ "MGETL D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ - "28:\n" \ + "31:\n" \ "MSETL [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "32:\n" \ "SUB %0, %0, #8\n" \ - "29:\n" \ + "33:\n" \ "SETL [%0++], D0.7, D1.7\n" \ "SUB %3, %3, #32\n" \ "1:" \ @@ -312,11 +315,15 @@ " .long 26b,3b\n" \ " .long 27b,3b\n" \ " .long 28b,3b\n" \ - " .long 29b,4b\n" \ + " .long 29b,3b\n" \ + " .long 30b,3b\n" \ + " .long 31b,3b\n" \ + " .long 32b,3b\n" \ + " .long 33b,4b\n" \ " .previous\n" \ : "=r" (to), "=r" (from), "=r" (ret), "=d" (n) \ : "0" (to), "1" (from), "2" (ret), "3" (n) \ - : "D1Ar1", "D0Ar2", "memory") + : "D1Ar1", "D0Ar2", "cc", "memory") /* rewind 'to' and 'from' pointers when a fault occurs * @@ -342,7 +349,7 @@ #define __asm_copy_to_user_64bit_rapf_loop(to, from, ret, n, id)\ __asm_copy_user_64bit_rapf_loop(to, from, ret, n, id, \ "LSR D0Ar2, D0Ar2, #8\n" \ - "AND D0Ar2, D0Ar2, #0x7\n" \ + "ANDS D0Ar2, D0Ar2, #0x7\n" \ "ADDZ D0Ar2, D0Ar2, #4\n" \ "SUB D0Ar2, D0Ar2, #1\n" \ "MOV D1Ar1, #4\n" \ @@ -403,47 +410,55 @@ "MGETD D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ "22:\n" \ "MSETD [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ - "SUB %3, %3, #16\n" \ "23:\n" \ - "MGETD D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ - "24:\n" \ - "MSETD [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ "SUB %3, %3, #16\n" \ - "25:\n" \ + "24:\n" \ "MGETD D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ - "26:\n" \ + "25:\n" \ "MSETD [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "26:\n" \ "SUB %3, %3, #16\n" \ "27:\n" \ "MGETD D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ "28:\n" \ "MSETD [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "29:\n" \ + "SUB %3, %3, #16\n" \ + "30:\n" \ + "MGETD D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ + "31:\n" \ + "MSETD [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "32:\n" \ "SUB %3, %3, #16\n" \ "DCACHE [%1+#-64], D0Ar6\n" \ "BR $Lloop"id"\n" \ \ "MOV RAPF, %1\n" \ - "29:\n" \ + "33:\n" \ "MGETD D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ - "30:\n" \ + "34:\n" \ "MSETD [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "35:\n" \ "SUB %3, %3, #16\n" \ - "31:\n" \ + "36:\n" \ "MGETD D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ - "32:\n" \ + "37:\n" \ "MSETD [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "38:\n" \ "SUB %3, %3, #16\n" \ - "33:\n" \ + "39:\n" \ "MGETD D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ - "34:\n" \ + "40:\n" \ "MSETD [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "41:\n" \ "SUB %3, %3, #16\n" \ - "35:\n" \ + "42:\n" \ "MGETD D0FrT, D0.5, D0.6, D0.7, [%1++]\n" \ - "36:\n" \ + "43:\n" \ "MSETD [%0++], D0FrT, D0.5, D0.6, D0.7\n" \ + "44:\n" \ "SUB %0, %0, #4\n" \ - "37:\n" \ + "45:\n" \ "SETD [%0++], D0.7\n" \ "SUB %3, %3, #16\n" \ "1:" \ @@ -483,11 +498,19 @@ " .long 34b,3b\n" \ " .long 35b,3b\n" \ " .long 36b,3b\n" \ - " .long 37b,4b\n" \ + " .long 37b,3b\n" \ + " .long 38b,3b\n" \ + " .long 39b,3b\n" \ + " .long 40b,3b\n" \ + " .long 41b,3b\n" \ + " .long 42b,3b\n" \ + " .long 43b,3b\n" \ + " .long 44b,3b\n" \ + " .long 45b,4b\n" \ " .previous\n" \ : "=r" (to), "=r" (from), "=r" (ret), "=d" (n) \ : "0" (to), "1" (from), "2" (ret), "3" (n) \ - : "D1Ar1", "D0Ar2", "memory") + : "D1Ar1", "D0Ar2", "cc", "memory") /* rewind 'to' and 'from' pointers when a fault occurs * @@ -513,7 +536,7 @@ #define __asm_copy_to_user_32bit_rapf_loop(to, from, ret, n, id)\ __asm_copy_user_32bit_rapf_loop(to, from, ret, n, id, \ "LSR D0Ar2, D0Ar2, #8\n" \ - "AND D0Ar2, D0Ar2, #0x7\n" \ + "ANDS D0Ar2, D0Ar2, #0x7\n" \ "ADDZ D0Ar2, D0Ar2, #4\n" \ "SUB D0Ar2, D0Ar2, #1\n" \ "MOV D1Ar1, #4\n" \ @@ -538,23 +561,31 @@ unsigned long __copy_user(void __user *pdst, const void *psrc, if ((unsigned long) src & 1) { __asm_copy_to_user_1(dst, src, retn); n--; + if (retn) + return retn + n; } if ((unsigned long) dst & 1) { /* Worst case - byte copy */ while (n > 0) { __asm_copy_to_user_1(dst, src, retn); n--; + if (retn) + return retn + n; } } if (((unsigned long) src & 2) && n >= 2) { __asm_copy_to_user_2(dst, src, retn); n -= 2; + if (retn) + return retn + n; } if ((unsigned long) dst & 2) { /* Second worst case - word copy */ while (n >= 2) { __asm_copy_to_user_2(dst, src, retn); n -= 2; + if (retn) + return retn + n; } } @@ -569,6 +600,8 @@ unsigned long __copy_user(void __user *pdst, const void *psrc, while (n >= 8) { __asm_copy_to_user_8x64(dst, src, retn); n -= 8; + if (retn) + return retn + n; } } if (n >= RAPF_MIN_BUF_SIZE) { @@ -581,6 +614,8 @@ unsigned long __copy_user(void __user *pdst, const void *psrc, while (n >= 8) { __asm_copy_to_user_8x64(dst, src, retn); n -= 8; + if (retn) + return retn + n; } } #endif @@ -588,11 +623,15 @@ unsigned long __copy_user(void __user *pdst, const void *psrc, while (n >= 16) { __asm_copy_to_user_16(dst, src, retn); n -= 16; + if (retn) + return retn + n; } while (n >= 4) { __asm_copy_to_user_4(dst, src, retn); n -= 4; + if (retn) + return retn + n; } switch (n) { @@ -609,6 +648,10 @@ unsigned long __copy_user(void __user *pdst, const void *psrc, break; } + /* + * If we get here, retn correctly reflects the number of failing + * bytes. + */ return retn; } EXPORT_SYMBOL(__copy_user); @@ -617,16 +660,14 @@ EXPORT_SYMBOL(__copy_user); __asm_copy_user_cont(to, from, ret, \ " GETB D1Ar1,[%1++]\n" \ "2: SETB [%0++],D1Ar1\n", \ - "3: ADD %2,%2,#1\n" \ - " SETB [%0++],D1Ar1\n", \ + "3: ADD %2,%2,#1\n", \ " .long 2b,3b\n") #define __asm_copy_from_user_2x_cont(to, from, ret, COPY, FIXUP, TENTRY) \ __asm_copy_user_cont(to, from, ret, \ " GETW D1Ar1,[%1++]\n" \ "2: SETW [%0++],D1Ar1\n" COPY, \ - "3: ADD %2,%2,#2\n" \ - " SETW [%0++],D1Ar1\n" FIXUP, \ + "3: ADD %2,%2,#2\n" FIXUP, \ " .long 2b,3b\n" TENTRY) #define __asm_copy_from_user_2(to, from, ret) \ @@ -636,145 +677,26 @@ EXPORT_SYMBOL(__copy_user); __asm_copy_from_user_2x_cont(to, from, ret, \ " GETB D1Ar1,[%1++]\n" \ "4: SETB [%0++],D1Ar1\n", \ - "5: ADD %2,%2,#1\n" \ - " SETB [%0++],D1Ar1\n", \ + "5: ADD %2,%2,#1\n", \ " .long 4b,5b\n") #define __asm_copy_from_user_4x_cont(to, from, ret, COPY, FIXUP, TENTRY) \ __asm_copy_user_cont(to, from, ret, \ " GETD D1Ar1,[%1++]\n" \ "2: SETD [%0++],D1Ar1\n" COPY, \ - "3: ADD %2,%2,#4\n" \ - " SETD [%0++],D1Ar1\n" FIXUP, \ + "3: ADD %2,%2,#4\n" FIXUP, \ " .long 2b,3b\n" TENTRY) #define __asm_copy_from_user_4(to, from, ret) \ __asm_copy_from_user_4x_cont(to, from, ret, "", "", "") -#define __asm_copy_from_user_5(to, from, ret) \ - __asm_copy_from_user_4x_cont(to, from, ret, \ - " GETB D1Ar1,[%1++]\n" \ - "4: SETB [%0++],D1Ar1\n", \ - "5: ADD %2,%2,#1\n" \ - " SETB [%0++],D1Ar1\n", \ - " .long 4b,5b\n") - -#define __asm_copy_from_user_6x_cont(to, from, ret, COPY, FIXUP, TENTRY) \ - __asm_copy_from_user_4x_cont(to, from, ret, \ - " GETW D1Ar1,[%1++]\n" \ - "4: SETW [%0++],D1Ar1\n" COPY, \ - "5: ADD %2,%2,#2\n" \ - " SETW [%0++],D1Ar1\n" FIXUP, \ - " .long 4b,5b\n" TENTRY) - -#define __asm_copy_from_user_6(to, from, ret) \ - __asm_copy_from_user_6x_cont(to, from, ret, "", "", "") - -#define __asm_copy_from_user_7(to, from, ret) \ - __asm_copy_from_user_6x_cont(to, from, ret, \ - " GETB D1Ar1,[%1++]\n" \ - "6: SETB [%0++],D1Ar1\n", \ - "7: ADD %2,%2,#1\n" \ - " SETB [%0++],D1Ar1\n", \ - " .long 6b,7b\n") - -#define __asm_copy_from_user_8x_cont(to, from, ret, COPY, FIXUP, TENTRY) \ - __asm_copy_from_user_4x_cont(to, from, ret, \ - " GETD D1Ar1,[%1++]\n" \ - "4: SETD [%0++],D1Ar1\n" COPY, \ - "5: ADD %2,%2,#4\n" \ - " SETD [%0++],D1Ar1\n" FIXUP, \ - " .long 4b,5b\n" TENTRY) - -#define __asm_copy_from_user_8(to, from, ret) \ - __asm_copy_from_user_8x_cont(to, from, ret, "", "", "") - -#define __asm_copy_from_user_9(to, from, ret) \ - __asm_copy_from_user_8x_cont(to, from, ret, \ - " GETB D1Ar1,[%1++]\n" \ - "6: SETB [%0++],D1Ar1\n", \ - "7: ADD %2,%2,#1\n" \ - " SETB [%0++],D1Ar1\n", \ - " .long 6b,7b\n") - -#define __asm_copy_from_user_10x_cont(to, from, ret, COPY, FIXUP, TENTRY) \ - __asm_copy_from_user_8x_cont(to, from, ret, \ - " GETW D1Ar1,[%1++]\n" \ - "6: SETW [%0++],D1Ar1\n" COPY, \ - "7: ADD %2,%2,#2\n" \ - " SETW [%0++],D1Ar1\n" FIXUP, \ - " .long 6b,7b\n" TENTRY) - -#define __asm_copy_from_user_10(to, from, ret) \ - __asm_copy_from_user_10x_cont(to, from, ret, "", "", "") - -#define __asm_copy_from_user_11(to, from, ret) \ - __asm_copy_from_user_10x_cont(to, from, ret, \ - " GETB D1Ar1,[%1++]\n" \ - "8: SETB [%0++],D1Ar1\n", \ - "9: ADD %2,%2,#1\n" \ - " SETB [%0++],D1Ar1\n", \ - " .long 8b,9b\n") - -#define __asm_copy_from_user_12x_cont(to, from, ret, COPY, FIXUP, TENTRY) \ - __asm_copy_from_user_8x_cont(to, from, ret, \ - " GETD D1Ar1,[%1++]\n" \ - "6: SETD [%0++],D1Ar1\n" COPY, \ - "7: ADD %2,%2,#4\n" \ - " SETD [%0++],D1Ar1\n" FIXUP, \ - " .long 6b,7b\n" TENTRY) - -#define __asm_copy_from_user_12(to, from, ret) \ - __asm_copy_from_user_12x_cont(to, from, ret, "", "", "") - -#define __asm_copy_from_user_13(to, from, ret) \ - __asm_copy_from_user_12x_cont(to, from, ret, \ - " GETB D1Ar1,[%1++]\n" \ - "8: SETB [%0++],D1Ar1\n", \ - "9: ADD %2,%2,#1\n" \ - " SETB [%0++],D1Ar1\n", \ - " .long 8b,9b\n") - -#define __asm_copy_from_user_14x_cont(to, from, ret, COPY, FIXUP, TENTRY) \ - __asm_copy_from_user_12x_cont(to, from, ret, \ - " GETW D1Ar1,[%1++]\n" \ - "8: SETW [%0++],D1Ar1\n" COPY, \ - "9: ADD %2,%2,#2\n" \ - " SETW [%0++],D1Ar1\n" FIXUP, \ - " .long 8b,9b\n" TENTRY) - -#define __asm_copy_from_user_14(to, from, ret) \ - __asm_copy_from_user_14x_cont(to, from, ret, "", "", "") - -#define __asm_copy_from_user_15(to, from, ret) \ - __asm_copy_from_user_14x_cont(to, from, ret, \ - " GETB D1Ar1,[%1++]\n" \ - "10: SETB [%0++],D1Ar1\n", \ - "11: ADD %2,%2,#1\n" \ - " SETB [%0++],D1Ar1\n", \ - " .long 10b,11b\n") - -#define __asm_copy_from_user_16x_cont(to, from, ret, COPY, FIXUP, TENTRY) \ - __asm_copy_from_user_12x_cont(to, from, ret, \ - " GETD D1Ar1,[%1++]\n" \ - "8: SETD [%0++],D1Ar1\n" COPY, \ - "9: ADD %2,%2,#4\n" \ - " SETD [%0++],D1Ar1\n" FIXUP, \ - " .long 8b,9b\n" TENTRY) - -#define __asm_copy_from_user_16(to, from, ret) \ - __asm_copy_from_user_16x_cont(to, from, ret, "", "", "") - #define __asm_copy_from_user_8x64(to, from, ret) \ asm volatile ( \ " GETL D0Ar2,D1Ar1,[%1++]\n" \ "2: SETL [%0++],D0Ar2,D1Ar1\n" \ "1:\n" \ " .section .fixup,\"ax\"\n" \ - " MOV D1Ar1,#0\n" \ - " MOV D0Ar2,#0\n" \ "3: ADD %2,%2,#8\n" \ - " SETL [%0++],D0Ar2,D1Ar1\n" \ " MOVT D0Ar2,#HI(1b)\n" \ " JUMP D0Ar2,#LO(1b)\n" \ " .previous\n" \ @@ -789,36 +711,57 @@ EXPORT_SYMBOL(__copy_user); * * Rationale: * A fault occurs while reading from user buffer, which is the - * source. Since the fault is at a single address, we only - * need to rewind by 8 bytes. + * source. * Since we don't write to kernel buffer until we read first, * the kernel buffer is at the right state and needn't be - * corrected. + * corrected, but the source must be rewound to the beginning of + * the block, which is LSM_STEP*8 bytes. + * LSM_STEP is bits 10:8 in TXSTATUS which is already read + * and stored in D0Ar2 + * + * NOTE: If a fault occurs at the last operation in M{G,S}ETL + * LSM_STEP will be 0. ie: we do 4 writes in our case, if + * a fault happens at the 4th write, LSM_STEP will be 0 + * instead of 4. The code copes with that. */ #define __asm_copy_from_user_64bit_rapf_loop(to, from, ret, n, id) \ __asm_copy_user_64bit_rapf_loop(to, from, ret, n, id, \ - "SUB %1, %1, #8\n") + "LSR D0Ar2, D0Ar2, #5\n" \ + "ANDS D0Ar2, D0Ar2, #0x38\n" \ + "ADDZ D0Ar2, D0Ar2, #32\n" \ + "SUB %1, %1, D0Ar2\n") /* rewind 'from' pointer when a fault occurs * * Rationale: * A fault occurs while reading from user buffer, which is the - * source. Since the fault is at a single address, we only - * need to rewind by 4 bytes. + * source. * Since we don't write to kernel buffer until we read first, * the kernel buffer is at the right state and needn't be - * corrected. + * corrected, but the source must be rewound to the beginning of + * the block, which is LSM_STEP*4 bytes. + * LSM_STEP is bits 10:8 in TXSTATUS which is already read + * and stored in D0Ar2 + * + * NOTE: If a fault occurs at the last operation in M{G,S}ETL + * LSM_STEP will be 0. ie: we do 4 writes in our case, if + * a fault happens at the 4th write, LSM_STEP will be 0 + * instead of 4. The code copes with that. */ #define __asm_copy_from_user_32bit_rapf_loop(to, from, ret, n, id) \ __asm_copy_user_32bit_rapf_loop(to, from, ret, n, id, \ - "SUB %1, %1, #4\n") + "LSR D0Ar2, D0Ar2, #6\n" \ + "ANDS D0Ar2, D0Ar2, #0x1c\n" \ + "ADDZ D0Ar2, D0Ar2, #16\n" \ + "SUB %1, %1, D0Ar2\n") -/* Copy from user to kernel, zeroing the bytes that were inaccessible in - userland. The return-value is the number of bytes that were - inaccessible. */ -unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc, - unsigned long n) +/* + * Copy from user to kernel. The return-value is the number of bytes that were + * inaccessible. + */ +unsigned long raw_copy_from_user(void *pdst, const void __user *psrc, + unsigned long n) { register char *dst asm ("A0.2") = pdst; register const char __user *src asm ("A1.2") = psrc; @@ -830,6 +773,8 @@ unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc, if ((unsigned long) src & 1) { __asm_copy_from_user_1(dst, src, retn); n--; + if (retn) + return retn + n; } if ((unsigned long) dst & 1) { /* Worst case - byte copy */ @@ -837,12 +782,14 @@ unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc, __asm_copy_from_user_1(dst, src, retn); n--; if (retn) - goto copy_exception_bytes; + return retn + n; } } if (((unsigned long) src & 2) && n >= 2) { __asm_copy_from_user_2(dst, src, retn); n -= 2; + if (retn) + return retn + n; } if ((unsigned long) dst & 2) { /* Second worst case - word copy */ @@ -850,16 +797,10 @@ unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc, __asm_copy_from_user_2(dst, src, retn); n -= 2; if (retn) - goto copy_exception_bytes; + return retn + n; } } - /* We only need one check after the unalignment-adjustments, - because if both adjustments were done, either both or - neither reference had an exception. */ - if (retn != 0) - goto copy_exception_bytes; - #ifdef USE_RAPF /* 64 bit copy loop */ if (!(((unsigned long) src | (unsigned long) dst) & 7)) { @@ -872,7 +813,7 @@ unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc, __asm_copy_from_user_8x64(dst, src, retn); n -= 8; if (retn) - goto copy_exception_bytes; + return retn + n; } } @@ -888,7 +829,7 @@ unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc, __asm_copy_from_user_8x64(dst, src, retn); n -= 8; if (retn) - goto copy_exception_bytes; + return retn + n; } } #endif @@ -898,7 +839,7 @@ unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc, n -= 4; if (retn) - goto copy_exception_bytes; + return retn + n; } /* If we get here, there were no memory read faults. */ @@ -924,21 +865,8 @@ unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc, /* If we get here, retn correctly reflects the number of failing bytes. */ return retn; - - copy_exception_bytes: - /* We already have "retn" bytes cleared, and need to clear the - remaining "n" bytes. A non-optimized simple byte-for-byte in-line - memset is preferred here, since this isn't speed-critical code and - we'd rather have this a leaf-function than calling memset. */ - { - char *endp; - for (endp = dst + n; dst < endp; dst++) - *dst = 0; - } - - return retn + n; } -EXPORT_SYMBOL(__copy_user_zeroing); +EXPORT_SYMBOL(raw_copy_from_user); #define __asm_clear_8x64(to, ret) \ asm volatile ( \ diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index b3c5bde43d34..9a6e11b6f457 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1526,7 +1526,7 @@ config CPU_MIPS64_R6 select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_MSA select GENERIC_CSUM - select MIPS_O32_FP64_SUPPORT if MIPS32_O32 + select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 select HAVE_KVM help Choose this option to build a kernel for release 6 or later of the diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h index f485afe51514..a8df44d60607 100644 --- a/arch/mips/include/asm/spinlock.h +++ b/arch/mips/include/asm/spinlock.h @@ -127,7 +127,7 @@ static inline void arch_spin_lock(arch_spinlock_t *lock) " andi %[ticket], %[ticket], 0xffff \n" " bne %[ticket], %[my_ticket], 4f \n" " subu %[ticket], %[my_ticket], %[ticket] \n" - "2: \n" + "2: .insn \n" " .subsection 2 \n" "4: andi %[ticket], %[ticket], 0xffff \n" " sll %[ticket], 5 \n" @@ -202,7 +202,7 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock) " sc %[ticket], %[ticket_ptr] \n" " beqz %[ticket], 1b \n" " li %[ticket], 1 \n" - "2: \n" + "2: .insn \n" " .subsection 2 \n" "3: b 2b \n" " li %[ticket], 0 \n" @@ -382,7 +382,7 @@ static inline int arch_read_trylock(arch_rwlock_t *rw) " .set reorder \n" __WEAK_LLSC_MB " li %2, 1 \n" - "2: \n" + "2: .insn \n" : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret) : GCC_OFF_SMALL_ASM() (rw->lock) : "memory"); @@ -422,7 +422,7 @@ static inline int arch_write_trylock(arch_rwlock_t *rw) " lui %1, 0x8000 \n" " sc %1, %0 \n" " li %2, 1 \n" - "2: \n" + "2: .insn \n" : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret) : GCC_OFF_SMALL_ASM() (rw->lock) diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 07718bb5fc9d..12422fd4af23 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -1824,7 +1824,7 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu) } decode_configs(c); - c->options |= MIPS_CPU_TLBINV | MIPS_CPU_LDPTE; + c->options |= MIPS_CPU_FTLB | MIPS_CPU_TLBINV | MIPS_CPU_LDPTE; c->writecombine = _CACHE_UNCACHED_ACCELERATED; break; default: diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index dc0b29612891..52a4fdfc8513 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -448,7 +448,7 @@ NESTED(nmi_handler, PT_SIZE, sp) BUILD_HANDLER reserved reserved sti verbose /* others */ .align 5 - LEAF(handle_ri_rdhwr_vivt) + LEAF(handle_ri_rdhwr_tlbp) .set push .set noat .set noreorder @@ -467,7 +467,7 @@ NESTED(nmi_handler, PT_SIZE, sp) .set pop bltz k1, handle_ri /* slow path */ /* fall thru */ - END(handle_ri_rdhwr_vivt) + END(handle_ri_rdhwr_tlbp) LEAF(handle_ri_rdhwr) .set push diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 6c7f9d7e92b3..6e2487d59fee 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -81,7 +81,7 @@ extern asmlinkage void handle_dbe(void); extern asmlinkage void handle_sys(void); extern asmlinkage void handle_bp(void); extern asmlinkage void handle_ri(void); -extern asmlinkage void handle_ri_rdhwr_vivt(void); +extern asmlinkage void handle_ri_rdhwr_tlbp(void); extern asmlinkage void handle_ri_rdhwr(void); extern asmlinkage void handle_cpu(void); extern asmlinkage void handle_ov(void); @@ -2352,9 +2352,18 @@ void __init trap_init(void) set_except_vector(EXCCODE_SYS, handle_sys); set_except_vector(EXCCODE_BP, handle_bp); - set_except_vector(EXCCODE_RI, rdhwr_noopt ? handle_ri : - (cpu_has_vtag_icache ? - handle_ri_rdhwr_vivt : handle_ri_rdhwr)); + + if (rdhwr_noopt) + set_except_vector(EXCCODE_RI, handle_ri); + else { + if (cpu_has_vtag_icache) + set_except_vector(EXCCODE_RI, handle_ri_rdhwr_tlbp); + else if (current_cpu_type() == CPU_LOONGSON3) + set_except_vector(EXCCODE_RI, handle_ri_rdhwr_tlbp); + else + set_except_vector(EXCCODE_RI, handle_ri_rdhwr); + } + set_except_vector(EXCCODE_CPU, handle_cpu); set_except_vector(EXCCODE_OV, handle_ov); set_except_vector(EXCCODE_TR, handle_tr); diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c index 9a61671c00a7..90565477dfbd 100644 --- a/arch/mips/lantiq/xway/sysctrl.c +++ b/arch/mips/lantiq/xway/sysctrl.c @@ -467,7 +467,7 @@ void __init ltq_soc_init(void) if (!np_xbar) panic("Failed to load xbar nodes from devicetree"); - if (of_address_to_resource(np_pmu, 0, &res_xbar)) + if (of_address_to_resource(np_xbar, 0, &res_xbar)) panic("Failed to get xbar resources"); if (request_mem_region(res_xbar.start, resource_size(&res_xbar), res_xbar.name) < 0) diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 88cfaf81c958..9d0107fbb169 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1558,6 +1558,7 @@ static void probe_vcache(void) vcache_size = c->vcache.sets * c->vcache.ways * c->vcache.linesz; c->vcache.waybit = 0; + c->vcache.waysize = vcache_size / c->vcache.ways; pr_info("Unified victim cache %ldkB %s, linesize %d bytes.\n", vcache_size >> 10, way_string[c->vcache.ways], c->vcache.linesz); @@ -1660,6 +1661,7 @@ static void __init loongson3_sc_init(void) /* Loongson-3 has 4 cores, 1MB scache for each. scaches are shared */ scache_size *= 4; c->scache.waybit = 0; + c->scache.waysize = scache_size / c->scache.ways; pr_info("Unified secondary cache %ldkB %s, linesize %d bytes.\n", scache_size >> 10, way_string[c->scache.ways], c->scache.linesz); if (scache_size) diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 55ce39606cb8..2da5649fc545 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -762,7 +762,8 @@ static void build_huge_update_entries(u32 **p, unsigned int pte, static void build_huge_handler_tail(u32 **p, struct uasm_reloc **r, struct uasm_label **l, unsigned int pte, - unsigned int ptr) + unsigned int ptr, + unsigned int flush) { #ifdef CONFIG_SMP UASM_i_SC(p, pte, 0, ptr); @@ -771,6 +772,22 @@ static void build_huge_handler_tail(u32 **p, struct uasm_reloc **r, #else UASM_i_SW(p, pte, 0, ptr); #endif + if (cpu_has_ftlb && flush) { + BUG_ON(!cpu_has_tlbinv); + + UASM_i_MFC0(p, ptr, C0_ENTRYHI); + uasm_i_ori(p, ptr, ptr, MIPS_ENTRYHI_EHINV); + UASM_i_MTC0(p, ptr, C0_ENTRYHI); + build_tlb_write_entry(p, l, r, tlb_indexed); + + uasm_i_xori(p, ptr, ptr, MIPS_ENTRYHI_EHINV); + UASM_i_MTC0(p, ptr, C0_ENTRYHI); + build_huge_update_entries(p, pte, ptr); + build_huge_tlb_write_entry(p, l, r, pte, tlb_random, 0); + + return; + } + build_huge_update_entries(p, pte, ptr); build_huge_tlb_write_entry(p, l, r, pte, tlb_indexed, 0); } @@ -2197,7 +2214,7 @@ static void build_r4000_tlb_load_handler(void) uasm_l_tlbl_goaround2(&l, p); } uasm_i_ori(&p, wr.r1, wr.r1, (_PAGE_ACCESSED | _PAGE_VALID)); - build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2); + build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2, 1); #endif uasm_l_nopage_tlbl(&l, p); @@ -2252,7 +2269,7 @@ static void build_r4000_tlb_store_handler(void) build_tlb_probe_entry(&p); uasm_i_ori(&p, wr.r1, wr.r1, _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID | _PAGE_DIRTY); - build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2); + build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2, 1); #endif uasm_l_nopage_tlbs(&l, p); @@ -2308,7 +2325,7 @@ static void build_r4000_tlb_modify_handler(void) build_tlb_probe_entry(&p); uasm_i_ori(&p, wr.r1, wr.r1, _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID | _PAGE_DIRTY); - build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2); + build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2, 0); #endif uasm_l_nopage_tlbm(&l, p); diff --git a/arch/mips/ralink/rt3883.c b/arch/mips/ralink/rt3883.c index 3e0aa09c6b55..9e4631acfcb5 100644 --- a/arch/mips/ralink/rt3883.c +++ b/arch/mips/ralink/rt3883.c @@ -36,7 +36,7 @@ static struct rt2880_pmx_func uartlite_func[] = { FUNC("uartlite", 0, 15, 2) }; static struct rt2880_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) }; static struct rt2880_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) }; static struct rt2880_pmx_func lna_a_func[] = { FUNC("lna a", 0, 32, 3) }; -static struct rt2880_pmx_func lna_g_func[] = { FUNC("lna a", 0, 35, 3) }; +static struct rt2880_pmx_func lna_g_func[] = { FUNC("lna g", 0, 35, 3) }; static struct rt2880_pmx_func pci_func[] = { FUNC("pci-dev", 0, 40, 32), FUNC("pci-host2", 1, 40, 32), @@ -44,7 +44,7 @@ static struct rt2880_pmx_func pci_func[] = { FUNC("pci-fnc", 3, 40, 32) }; static struct rt2880_pmx_func ge1_func[] = { FUNC("ge1", 0, 72, 12) }; -static struct rt2880_pmx_func ge2_func[] = { FUNC("ge1", 0, 84, 12) }; +static struct rt2880_pmx_func ge2_func[] = { FUNC("ge2", 0, 84, 12) }; static struct rt2880_pmx_group rt3883_pinmux_data[] = { GRP("i2c", i2c_func, 1, RT3883_GPIO_MODE_I2C), diff --git a/arch/nios2/kernel/prom.c b/arch/nios2/kernel/prom.c index 367c5426157b..3901b80d4420 100644 --- a/arch/nios2/kernel/prom.c +++ b/arch/nios2/kernel/prom.c @@ -48,6 +48,13 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) return alloc_bootmem_align(size, align); } +int __init early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size, + bool nomap) +{ + reserve_bootmem(base, size, BOOTMEM_DEFAULT); + return 0; +} + void __init early_init_devtree(void *params) { __be32 *dtb = (u32 *)__dtb_start; diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c index a3fa80d1aacc..72ef4077bf2b 100644 --- a/arch/nios2/kernel/setup.c +++ b/arch/nios2/kernel/setup.c @@ -200,6 +200,9 @@ void __init setup_arch(char **cmdline_p) } #endif /* CONFIG_BLK_DEV_INITRD */ + early_init_fdt_reserve_self(); + early_init_fdt_scan_reserved_mem(); + unflatten_and_copy_device_tree(); setup_cpuinfo(); diff --git a/arch/powerpc/crypto/crc32c-vpmsum_glue.c b/arch/powerpc/crypto/crc32c-vpmsum_glue.c index 411994551afc..f058e0c3e4d4 100644 --- a/arch/powerpc/crypto/crc32c-vpmsum_glue.c +++ b/arch/powerpc/crypto/crc32c-vpmsum_glue.c @@ -33,10 +33,13 @@ static u32 crc32c_vpmsum(u32 crc, unsigned char const *p, size_t len) } if (len & ~VMX_ALIGN_MASK) { + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); crc = __crc32c_vpmsum(crc, p, len & ~VMX_ALIGN_MASK); + disable_kernel_altivec(); pagefault_enable(); + preempt_enable(); } tail = len & VMX_ALIGN_MASK; diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index 8d58c61908f7..df88d2067348 100644 --- a/arch/powerpc/kernel/align.c +++ b/arch/powerpc/kernel/align.c @@ -807,14 +807,25 @@ int fix_alignment(struct pt_regs *regs) nb = aligninfo[instr].len; flags = aligninfo[instr].flags; - /* ldbrx/stdbrx overlap lfs/stfs in the DSISR unfortunately */ - if (IS_XFORM(instruction) && ((instruction >> 1) & 0x3ff) == 532) { - nb = 8; - flags = LD+SW; - } else if (IS_XFORM(instruction) && - ((instruction >> 1) & 0x3ff) == 660) { - nb = 8; - flags = ST+SW; + /* + * Handle some cases which give overlaps in the DSISR values. + */ + if (IS_XFORM(instruction)) { + switch (get_xop(instruction)) { + case 532: /* ldbrx */ + nb = 8; + flags = LD+SW; + break; + case 660: /* stdbrx */ + nb = 8; + flags = ST+SW; + break; + case 20: /* lwarx */ + case 84: /* ldarx */ + case 116: /* lharx */ + case 276: /* lqarx */ + return 0; /* not emulated ever */ + } } /* Byteswap little endian loads and stores */ diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index 32be2a844947..d5f2431daa5e 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -67,7 +67,7 @@ PPC64_CACHES: * flush all bytes from start through stop-1 inclusive */ -_GLOBAL(flush_icache_range) +_GLOBAL_TOC(flush_icache_range) BEGIN_FTR_SECTION PURGE_PREFETCHED_INS blr @@ -120,7 +120,7 @@ EXPORT_SYMBOL(flush_icache_range) * * flush all bytes from start to stop-1 inclusive */ -_GLOBAL(flush_dcache_range) +_GLOBAL_TOC(flush_dcache_range) /* * Flush the data cache to memory diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 6824157e4d2e..18a0946837d4 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -245,6 +245,15 @@ static void cpu_ready_for_interrupts(void) mtspr(SPRN_LPCR, lpcr | LPCR_AIL_3); } + /* + * Fixup HFSCR:TM based on CPU features. The bit is set by our + * early asm init because at that point we haven't updated our + * CPU features from firmware and device-tree. Here we have, + * so let's do it. + */ + if (cpu_has_feature(CPU_FTR_HVMODE) && !cpu_has_feature(CPU_FTR_TM_COMP)) + mtspr(SPRN_HFSCR, mfspr(SPRN_HFSCR) & ~HFSCR_TM); + /* Set IR and DR in PACA MSR */ get_paca()->kernel_msr = MSR_KERNEL; } diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index cc332608e656..65bb8f33b399 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -638,6 +638,10 @@ static void native_flush_hash_range(unsigned long number, int local) unsigned long psize = batch->psize; int ssize = batch->ssize; int i; + unsigned int use_local; + + use_local = local && mmu_has_feature(MMU_FTR_TLBIEL) && + mmu_psize_defs[psize].tlbiel && !cxl_ctx_in_use(); local_irq_save(flags); @@ -667,8 +671,7 @@ static void native_flush_hash_range(unsigned long number, int local) } pte_iterate_hashed_end(); } - if (mmu_has_feature(MMU_FTR_TLBIEL) && - mmu_psize_defs[psize].tlbiel && local) { + if (use_local) { asm volatile("ptesync":::"memory"); for (i = 0; i < number; i++) { vpn = batch->vpn[i]; diff --git a/arch/s390/boot/compressed/misc.c b/arch/s390/boot/compressed/misc.c index 8515dd5a5663..bd90448347eb 100644 --- a/arch/s390/boot/compressed/misc.c +++ b/arch/s390/boot/compressed/misc.c @@ -141,31 +141,34 @@ static void check_ipl_parmblock(void *start, unsigned long size) unsigned long decompress_kernel(void) { - unsigned long output_addr; - unsigned char *output; + void *output, *kernel_end; - output_addr = ((unsigned long) &_end + HEAP_SIZE + 4095UL) & -4096UL; - check_ipl_parmblock((void *) 0, output_addr + SZ__bss_start); - memset(&_bss, 0, &_ebss - &_bss); - free_mem_ptr = (unsigned long)&_end; - free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; - output = (unsigned char *) output_addr; + output = (void *) ALIGN((unsigned long) &_end + HEAP_SIZE, PAGE_SIZE); + kernel_end = output + SZ__bss_start; + check_ipl_parmblock((void *) 0, (unsigned long) kernel_end); #ifdef CONFIG_BLK_DEV_INITRD /* * Move the initrd right behind the end of the decompressed - * kernel image. + * kernel image. This also prevents initrd corruption caused by + * bss clearing since kernel_end will always be located behind the + * current bss section.. */ - if (INITRD_START && INITRD_SIZE && - INITRD_START < (unsigned long) output + SZ__bss_start) { - check_ipl_parmblock(output + SZ__bss_start, - INITRD_START + INITRD_SIZE); - memmove(output + SZ__bss_start, - (void *) INITRD_START, INITRD_SIZE); - INITRD_START = (unsigned long) output + SZ__bss_start; + if (INITRD_START && INITRD_SIZE && kernel_end > (void *) INITRD_START) { + check_ipl_parmblock(kernel_end, INITRD_SIZE); + memmove(kernel_end, (void *) INITRD_START, INITRD_SIZE); + INITRD_START = (unsigned long) kernel_end; } #endif + /* + * Clear bss section. free_mem_ptr and free_mem_end_ptr need to be + * initialized afterwards since they reside in bss. + */ + memset(&_bss, 0, &_ebss - &_bss); + free_mem_ptr = (unsigned long) &_end; + free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; + puts("Uncompressing Linux... "); __decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error); puts("Ok, booting the kernel.\n"); diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index f82b04e85a21..7e99fb34ff23 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -144,7 +144,7 @@ unsigned long __must_check __copy_to_user(void __user *to, const void *from, " jg 2b\n" \ ".popsection\n" \ EX_TABLE(0b,3b) EX_TABLE(1b,3b) \ - : "=d" (__rc), "=Q" (*(to)) \ + : "=d" (__rc), "+Q" (*(to)) \ : "d" (size), "Q" (*(from)), \ "d" (__reg0), "K" (-EFAULT) \ : "cc"); \ diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 537c6647d84c..036fc03aefbd 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -54,6 +54,8 @@ static DEFINE_MUTEX(mce_chrdev_read_mutex); +static int mce_chrdev_open_count; /* #times opened */ + #define mce_log_get_idx_check(p) \ ({ \ RCU_LOCKDEP_WARN(!rcu_read_lock_sched_held() && \ @@ -601,6 +603,10 @@ static int mce_default_notifier(struct notifier_block *nb, unsigned long val, if (atomic_read(&num_notifiers) > 2) return NOTIFY_DONE; + /* Don't print when mcelog is running */ + if (mce_chrdev_open_count > 0) + return NOTIFY_DONE; + __print_mce(m); return NOTIFY_DONE; @@ -1871,7 +1877,6 @@ void mcheck_cpu_clear(struct cpuinfo_x86 *c) */ static DEFINE_SPINLOCK(mce_chrdev_state_lock); -static int mce_chrdev_open_count; /* #times opened */ static int mce_chrdev_open_exclu; /* already open exclusive? */ static int mce_chrdev_open(struct inode *inode, struct file *file) diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index e244c19a2451..067f9813fd2c 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -223,6 +223,22 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = { DMI_MATCH(DMI_BOARD_NAME, "P4S800"), }, }, + { /* Handle problems with rebooting on ASUS EeeBook X205TA */ + .callback = set_acpi_reboot, + .ident = "ASUS EeeBook X205TA", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X205TA"), + }, + }, + { /* Handle problems with rebooting on ASUS EeeBook X205TAW */ + .callback = set_acpi_reboot, + .ident = "ASUS EeeBook X205TAW", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X205TAW"), + }, + }, /* Certec */ { /* Handle problems with rebooting on Certec BPC600 */ diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 9764463ce833..cce7d2e3be15 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -7086,13 +7086,18 @@ static int nested_vmx_check_vmptr(struct kvm_vcpu *vcpu, int exit_reason, } page = nested_get_page(vcpu, vmptr); - if (page == NULL || - *(u32 *)kmap(page) != VMCS12_REVISION) { + if (page == NULL) { nested_vmx_failInvalid(vcpu); + return kvm_skip_emulated_instruction(vcpu); + } + if (*(u32 *)kmap(page) != VMCS12_REVISION) { kunmap(page); + nested_release_page_clean(page); + nested_vmx_failInvalid(vcpu); return kvm_skip_emulated_instruction(vcpu); } kunmap(page); + nested_release_page_clean(page); vmx->nested.vmxon_ptr = vmptr; break; case EXIT_REASON_VMCLEAR: diff --git a/arch/xtensa/include/asm/page.h b/arch/xtensa/include/asm/page.h index 976b1d70edbc..4ddbfd57a7c8 100644 --- a/arch/xtensa/include/asm/page.h +++ b/arch/xtensa/include/asm/page.h @@ -164,8 +164,21 @@ void copy_user_highpage(struct page *to, struct page *from, #define ARCH_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT) +#ifdef CONFIG_MMU +static inline unsigned long ___pa(unsigned long va) +{ + unsigned long off = va - PAGE_OFFSET; + + if (off >= XCHAL_KSEG_SIZE) + off -= XCHAL_KSEG_SIZE; + + return off + PHYS_OFFSET; +} +#define __pa(x) ___pa((unsigned long)(x)) +#else #define __pa(x) \ ((unsigned long) (x) - PAGE_OFFSET + PHYS_OFFSET) +#endif #define __va(x) \ ((void *)((unsigned long) (x) - PHYS_OFFSET + PAGE_OFFSET)) #define pfn_valid(pfn) \ diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index e19f530f1083..6d5a8c1d3132 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -113,7 +113,7 @@ struct acpi_button { static BLOCKING_NOTIFIER_HEAD(acpi_lid_notifier); static struct acpi_device *lid_device; -static u8 lid_init_state = ACPI_BUTTON_LID_INIT_METHOD; +static u8 lid_init_state = ACPI_BUTTON_LID_INIT_OPEN; static unsigned long lid_report_interval __read_mostly = 500; module_param(lid_report_interval, ulong, 0644); diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index fb19e1cdb641..edc8663b5db3 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -99,13 +99,13 @@ static int find_child_checks(struct acpi_device *adev, bool check_children) return -ENODEV; /* - * If the device has a _HID (or _CID) returning a valid ACPI/PNP - * device ID, it is better to make it look less attractive here, so that - * the other device with the same _ADR value (that may not have a valid - * device ID) can be matched going forward. [This means a second spec - * violation in a row, so whatever we do here is best effort anyway.] + * If the device has a _HID returning a valid ACPI/PNP device ID, it is + * better to make it look less attractive here, so that the other device + * with the same _ADR value (that may not have a valid device ID) can be + * matched going forward. [This means a second spec violation in a row, + * so whatever we do here is best effort anyway.] */ - return sta_present && list_empty(&adev->pnp.ids) ? + return sta_present && !adev->pnp.type.platform_id ? FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE; } diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 54abb26b7366..a4327af676fe 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -130,6 +130,12 @@ void __init acpi_nvs_nosave_s3(void) nvs_nosave_s3 = true; } +static int __init init_nvs_save_s3(const struct dmi_system_id *d) +{ + nvs_nosave_s3 = false; + return 0; +} + /* * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the * user to request that behavior by using the 'acpi_old_suspend_ordering' @@ -324,6 +330,19 @@ static struct dmi_system_id acpisleep_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "K54HR"), }, }, + /* + * https://bugzilla.kernel.org/show_bug.cgi?id=189431 + * Lenovo G50-45 is a platform later than 2012, but needs nvs memory + * saving during S3. + */ + { + .callback = init_nvs_save_s3, + .ident = "Lenovo G50-45", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "80E3"), + }, + }, {}, }; diff --git a/drivers/ata/ahci_da850.c b/drivers/ata/ahci_da850.c index 267a3d3e79f4..52f2674d5e89 100644 --- a/drivers/ata/ahci_da850.c +++ b/drivers/ata/ahci_da850.c @@ -54,11 +54,42 @@ static void da850_sata_init(struct device *dev, void __iomem *pwrdn_reg, writel(val, ahci_base + SATA_P0PHYCR_REG); } +static int ahci_da850_softreset(struct ata_link *link, + unsigned int *class, unsigned long deadline) +{ + int pmp, ret; + + pmp = sata_srst_pmp(link); + + /* + * There's an issue with the SATA controller on da850 SoCs: if we + * enable Port Multiplier support, but the drive is connected directly + * to the board, it can't be detected. As a workaround: if PMP is + * enabled, we first call ahci_do_softreset() and pass it the result of + * sata_srst_pmp(). If this call fails, we retry with pmp = 0. + */ + ret = ahci_do_softreset(link, class, pmp, deadline, ahci_check_ready); + if (pmp && ret == -EBUSY) + return ahci_do_softreset(link, class, 0, + deadline, ahci_check_ready); + + return ret; +} + +static struct ata_port_operations ahci_da850_port_ops = { + .inherits = &ahci_platform_ops, + .softreset = ahci_da850_softreset, + /* + * No need to override .pmp_softreset - it's only used for actual + * PMP-enabled ports. + */ +}; + static const struct ata_port_info ahci_da850_port_info = { .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, - .port_ops = &ahci_platform_ops, + .port_ops = &ahci_da850_port_ops, }; static struct scsi_host_template ahci_platform_sht = { diff --git a/drivers/char/random.c b/drivers/char/random.c index 1ef26403bcc8..433facfd6cb8 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -2042,63 +2042,65 @@ struct ctl_table random_table[] = { }; #endif /* CONFIG_SYSCTL */ -static u32 random_int_secret[MD5_MESSAGE_BYTES / 4] ____cacheline_aligned; - -int random_int_secret_init(void) -{ - get_random_bytes(random_int_secret, sizeof(random_int_secret)); - return 0; -} - -static DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash) - __aligned(sizeof(unsigned long)); +struct batched_entropy { + union { + unsigned long entropy_long[CHACHA20_BLOCK_SIZE / sizeof(unsigned long)]; + unsigned int entropy_int[CHACHA20_BLOCK_SIZE / sizeof(unsigned int)]; + }; + unsigned int position; +}; /* - * Get a random word for internal kernel use only. Similar to urandom but - * with the goal of minimal entropy pool depletion. As a result, the random - * value is not cryptographically secure but for several uses the cost of - * depleting entropy is too high + * Get a random word for internal kernel use only. The quality of the random + * number is either as good as RDRAND or as good as /dev/urandom, with the + * goal of being quite fast and not depleting entropy. */ -unsigned int get_random_int(void) +static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_long); +unsigned long get_random_long(void) { - __u32 *hash; - unsigned int ret; + unsigned long ret; + struct batched_entropy *batch; - if (arch_get_random_int(&ret)) + if (arch_get_random_long(&ret)) return ret; - hash = get_cpu_var(get_random_int_hash); - - hash[0] += current->pid + jiffies + random_get_entropy(); - md5_transform(hash, random_int_secret); - ret = hash[0]; - put_cpu_var(get_random_int_hash); - + batch = &get_cpu_var(batched_entropy_long); + if (batch->position % ARRAY_SIZE(batch->entropy_long) == 0) { + extract_crng((u8 *)batch->entropy_long); + batch->position = 0; + } + ret = batch->entropy_long[batch->position++]; + put_cpu_var(batched_entropy_long); return ret; } -EXPORT_SYMBOL(get_random_int); +EXPORT_SYMBOL(get_random_long); -/* - * Same as get_random_int(), but returns unsigned long. - */ -unsigned long get_random_long(void) +#if BITS_PER_LONG == 32 +unsigned int get_random_int(void) { - __u32 *hash; - unsigned long ret; + return get_random_long(); +} +#else +static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_int); +unsigned int get_random_int(void) +{ + unsigned int ret; + struct batched_entropy *batch; - if (arch_get_random_long(&ret)) + if (arch_get_random_int(&ret)) return ret; - hash = get_cpu_var(get_random_int_hash); - - hash[0] += current->pid + jiffies + random_get_entropy(); - md5_transform(hash, random_int_secret); - ret = *(unsigned long *)hash; - put_cpu_var(get_random_int_hash); - + batch = &get_cpu_var(batched_entropy_int); + if (batch->position % ARRAY_SIZE(batch->entropy_int) == 0) { + extract_crng((u8 *)batch->entropy_int); + batch->position = 0; + } + ret = batch->entropy_int[batch->position++]; + put_cpu_var(batched_entropy_int); return ret; } -EXPORT_SYMBOL(get_random_long); +#endif +EXPORT_SYMBOL(get_random_int); /** * randomize_page - Generate a random, page aligned address diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c index 4a0f5ead4fb5..1e2e5198db53 100644 --- a/drivers/firmware/qcom_scm-64.c +++ b/drivers/firmware/qcom_scm-64.c @@ -91,6 +91,7 @@ static int qcom_scm_call(struct device *dev, u32 svc_id, u32 cmd_id, dma_addr_t args_phys = 0; void *args_virt = NULL; size_t alloc_len; + struct arm_smccc_quirk quirk = {.id = ARM_SMCCC_QUIRK_QCOM_A6}; if (unlikely(arglen > N_REGISTER_ARGS)) { alloc_len = N_EXT_QCOM_SCM_ARGS * sizeof(u64); @@ -131,10 +132,16 @@ static int qcom_scm_call(struct device *dev, u32 svc_id, u32 cmd_id, qcom_smccc_convention, ARM_SMCCC_OWNER_SIP, fn_id); + quirk.state.a6 = 0; + do { - arm_smccc_smc(cmd, desc->arginfo, desc->args[0], - desc->args[1], desc->args[2], x5, 0, 0, - res); + arm_smccc_smc_quirk(cmd, desc->arginfo, desc->args[0], + desc->args[1], desc->args[2], x5, + quirk.state.a6, 0, res, &quirk); + + if (res->a0 == QCOM_SCM_INTERRUPTED) + cmd = res->a0; + } while (res->a0 == QCOM_SCM_INTERRUPTED); mutex_unlock(&qcom_scm_lock); diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index a3faefa44f68..d3f9f028a37b 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -572,8 +572,10 @@ struct gpio_desc *acpi_find_gpio(struct device *dev, } desc = acpi_get_gpiod_by_index(adev, propname, idx, &info); - if (!IS_ERR(desc) || (PTR_ERR(desc) == -EPROBE_DEFER)) + if (!IS_ERR(desc)) break; + if (PTR_ERR(desc) == -EPROBE_DEFER) + return ERR_CAST(desc); } /* Then from plain _CRS GPIOs */ diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index ec6474b01dbc..7cce86933000 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -90,7 +90,7 @@ struct detailed_mode_closure { #define LEVEL_GTF2 2 #define LEVEL_CVT 3 -static struct edid_quirk { +static const struct edid_quirk { char vendor[4]; int product_id; u32 quirks; @@ -1480,7 +1480,7 @@ EXPORT_SYMBOL(drm_edid_duplicate); * * Returns true if @vendor is in @edid, false otherwise */ -static bool edid_vendor(struct edid *edid, char *vendor) +static bool edid_vendor(struct edid *edid, const char *vendor) { char edid_vendor[3]; @@ -1500,7 +1500,7 @@ static bool edid_vendor(struct edid *edid, char *vendor) */ static u32 edid_get_quirks(struct edid *edid) { - struct edid_quirk *quirk; + const struct edid_quirk *quirk; int i; for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) { diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 325cb9b55989..5f30a0716531 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1422,7 +1422,7 @@ static int kvmgt_rw_gpa(unsigned long handle, unsigned long gpa, { struct kvmgt_guest_info *info; struct kvm *kvm; - int ret; + int idx, ret; bool kthread = current->mm == NULL; if (!handle_valid(handle)) @@ -1434,8 +1434,10 @@ static int kvmgt_rw_gpa(unsigned long handle, unsigned long gpa, if (kthread) use_mm(kvm->mm); + idx = srcu_read_lock(&kvm->srcu); ret = write ? kvm_write_guest(kvm, gpa, buf, len) : kvm_read_guest(kvm, gpa, buf, len); + srcu_read_unlock(&kvm->srcu, idx); if (kthread) unuse_mm(kvm->mm); diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c index 678b0be85376..3635dbe328ef 100644 --- a/drivers/gpu/drm/i915/gvt/sched_policy.c +++ b/drivers/gpu/drm/i915/gvt/sched_policy.c @@ -101,7 +101,7 @@ struct tbs_sched_data { struct list_head runq_head; }; -#define GVT_DEFAULT_TIME_SLICE (1 * HZ / 1000) +#define GVT_DEFAULT_TIME_SLICE (msecs_to_jiffies(1)) static void tbs_sched_func(struct work_struct *work) { @@ -224,7 +224,7 @@ static void tbs_sched_start_schedule(struct intel_vgpu *vgpu) return; list_add_tail(&vgpu_data->list, &sched_data->runq_head); - schedule_delayed_work(&sched_data->work, sched_data->period); + schedule_delayed_work(&sched_data->work, 0); } static void tbs_sched_stop_schedule(struct intel_vgpu *vgpu) diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index fce8e198bc76..08e274e16165 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -421,6 +421,7 @@ static const struct pci_device_id pciidlist[] = { INTEL_VLV_IDS(&intel_valleyview_info), INTEL_BDW_GT12_IDS(&intel_broadwell_info), INTEL_BDW_GT3_IDS(&intel_broadwell_gt3_info), + INTEL_BDW_RSVD_IDS(&intel_broadwell_info), INTEL_CHV_IDS(&intel_cherryview_info), INTEL_SKL_GT1_IDS(&intel_skylake_info), INTEL_SKL_GT2_IDS(&intel_skylake_info), diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c index 1f2f9ca25901..4556e2b13ac5 100644 --- a/drivers/gpu/drm/mga/mga_dma.c +++ b/drivers/gpu/drm/mga/mga_dma.c @@ -392,6 +392,24 @@ int mga_driver_load(struct drm_device *dev, unsigned long flags) drm_mga_private_t *dev_priv; int ret; + /* There are PCI versions of the G450. These cards have the + * same PCI ID as the AGP G450, but have an additional PCI-to-PCI + * bridge chip. We detect these cards, which are not currently + * supported by this driver, by looking at the device ID of the + * bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the + * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the + * device. + */ + if ((dev->pdev->device == 0x0525) && dev->pdev->bus->self + && (dev->pdev->bus->self->vendor == 0x3388) + && (dev->pdev->bus->self->device == 0x0021) + && dev->agp) { + /* FIXME: This should be quirked in the pci core, but oh well + * the hw probably stopped existing. */ + arch_phys_wc_del(dev->agp->agp_mtrr); + kfree(dev->agp); + dev->agp = NULL; + } dev_priv = kzalloc(sizeof(drm_mga_private_t), GFP_KERNEL); if (!dev_priv) return -ENOMEM; @@ -698,7 +716,7 @@ static int mga_do_pci_dma_bootstrap(struct drm_device *dev, static int mga_do_dma_bootstrap(struct drm_device *dev, drm_mga_dma_bootstrap_t *dma_bs) { - const int is_agp = (dma_bs->agp_mode != 0) && drm_pci_device_is_agp(dev); + const int is_agp = (dma_bs->agp_mode != 0) && dev->agp; int err; drm_mga_private_t *const dev_priv = (drm_mga_private_t *) dev->dev_private; diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c index 25b2a1a424e6..63ba0699d107 100644 --- a/drivers/gpu/drm/mga/mga_drv.c +++ b/drivers/gpu/drm/mga/mga_drv.c @@ -37,8 +37,6 @@ #include -static int mga_driver_device_is_agp(struct drm_device *dev); - static struct pci_device_id pciidlist[] = { mga_PCI_IDS }; @@ -66,7 +64,6 @@ static struct drm_driver driver = { .lastclose = mga_driver_lastclose, .set_busid = drm_pci_set_busid, .dma_quiescent = mga_driver_dma_quiescent, - .device_is_agp = mga_driver_device_is_agp, .get_vblank_counter = mga_get_vblank_counter, .enable_vblank = mga_enable_vblank, .disable_vblank = mga_disable_vblank, @@ -107,37 +104,3 @@ module_exit(mga_exit); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL and additional rights"); - -/** - * Determine if the device really is AGP or not. - * - * In addition to the usual tests performed by \c drm_device_is_agp, this - * function detects PCI G450 cards that appear to the system exactly like - * AGP G450 cards. - * - * \param dev The device to be tested. - * - * \returns - * If the device is a PCI G450, zero is returned. Otherwise 2 is returned. - */ -static int mga_driver_device_is_agp(struct drm_device *dev) -{ - const struct pci_dev *const pdev = dev->pdev; - - /* There are PCI versions of the G450. These cards have the - * same PCI ID as the AGP G450, but have an additional PCI-to-PCI - * bridge chip. We detect these cards, which are not currently - * supported by this driver, by looking at the device ID of the - * bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the - * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the - * device. - */ - - if ((pdev->device == 0x0525) && pdev->bus->self - && (pdev->bus->self->vendor == 0x3388) - && (pdev->bus->self->device == 0x0021)) { - return 0; - } - - return 2; -} diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index b8647198c11c..657874077400 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -846,7 +846,9 @@ static const struct adreno_gpu_funcs funcs = { .idle = a5xx_idle, .irq = a5xx_irq, .destroy = a5xx_destroy, +#ifdef CONFIG_DEBUG_FS .show = a5xx_show, +#endif }, .get_timestamp = a5xx_get_timestamp, }; diff --git a/drivers/gpu/drm/ttm/ttm_object.c b/drivers/gpu/drm/ttm/ttm_object.c index 4f5fa8d65fe9..144367c0c28f 100644 --- a/drivers/gpu/drm/ttm/ttm_object.c +++ b/drivers/gpu/drm/ttm/ttm_object.c @@ -179,7 +179,7 @@ int ttm_base_object_init(struct ttm_object_file *tfile, if (unlikely(ret != 0)) goto out_err0; - ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL); + ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, false); if (unlikely(ret != 0)) goto out_err1; @@ -318,7 +318,8 @@ EXPORT_SYMBOL(ttm_ref_object_exists); int ttm_ref_object_add(struct ttm_object_file *tfile, struct ttm_base_object *base, - enum ttm_ref_type ref_type, bool *existed) + enum ttm_ref_type ref_type, bool *existed, + bool require_existed) { struct drm_open_hash *ht = &tfile->ref_hash[ref_type]; struct ttm_ref_object *ref; @@ -345,6 +346,9 @@ int ttm_ref_object_add(struct ttm_object_file *tfile, } rcu_read_unlock(); + if (require_existed) + return -EPERM; + ret = ttm_mem_global_alloc(mem_glob, sizeof(*ref), false, false); if (unlikely(ret != 0)) @@ -635,7 +639,7 @@ int ttm_prime_fd_to_handle(struct ttm_object_file *tfile, prime = (struct ttm_prime_object *) dma_buf->priv; base = &prime->base; *handle = base->hash.key; - ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL); + ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, false); dma_buf_put(dma_buf); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c index 6541dd8b82dc..6b2708b4eafe 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c @@ -538,7 +538,7 @@ int vmw_fence_create(struct vmw_fence_manager *fman, struct vmw_fence_obj **p_fence) { struct vmw_fence_obj *fence; - int ret; + int ret; fence = kzalloc(sizeof(*fence), GFP_KERNEL); if (unlikely(fence == NULL)) @@ -701,6 +701,41 @@ void vmw_fence_fifo_up(struct vmw_fence_manager *fman) } +/** + * vmw_fence_obj_lookup - Look up a user-space fence object + * + * @tfile: A struct ttm_object_file identifying the caller. + * @handle: A handle identifying the fence object. + * @return: A struct vmw_user_fence base ttm object on success or + * an error pointer on failure. + * + * The fence object is looked up and type-checked. The caller needs + * to have opened the fence object first, but since that happens on + * creation and fence objects aren't shareable, that's not an + * issue currently. + */ +static struct ttm_base_object * +vmw_fence_obj_lookup(struct ttm_object_file *tfile, u32 handle) +{ + struct ttm_base_object *base = ttm_base_object_lookup(tfile, handle); + + if (!base) { + pr_err("Invalid fence object handle 0x%08lx.\n", + (unsigned long)handle); + return ERR_PTR(-EINVAL); + } + + if (base->refcount_release != vmw_user_fence_base_release) { + pr_err("Invalid fence object handle 0x%08lx.\n", + (unsigned long)handle); + ttm_base_object_unref(&base); + return ERR_PTR(-EINVAL); + } + + return base; +} + + int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { @@ -726,13 +761,9 @@ int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data, arg->kernel_cookie = jiffies + wait_timeout; } - base = ttm_base_object_lookup(tfile, arg->handle); - if (unlikely(base == NULL)) { - printk(KERN_ERR "Wait invalid fence object handle " - "0x%08lx.\n", - (unsigned long)arg->handle); - return -EINVAL; - } + base = vmw_fence_obj_lookup(tfile, arg->handle); + if (IS_ERR(base)) + return PTR_ERR(base); fence = &(container_of(base, struct vmw_user_fence, base)->fence); @@ -771,13 +802,9 @@ int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data, struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; struct vmw_private *dev_priv = vmw_priv(dev); - base = ttm_base_object_lookup(tfile, arg->handle); - if (unlikely(base == NULL)) { - printk(KERN_ERR "Fence signaled invalid fence object handle " - "0x%08lx.\n", - (unsigned long)arg->handle); - return -EINVAL; - } + base = vmw_fence_obj_lookup(tfile, arg->handle); + if (IS_ERR(base)) + return PTR_ERR(base); fence = &(container_of(base, struct vmw_user_fence, base)->fence); fman = fman_from_fence(fence); @@ -1024,6 +1051,7 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data, (struct drm_vmw_fence_event_arg *) data; struct vmw_fence_obj *fence = NULL; struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); + struct ttm_object_file *tfile = vmw_fp->tfile; struct drm_vmw_fence_rep __user *user_fence_rep = (struct drm_vmw_fence_rep __user *)(unsigned long) arg->fence_rep; @@ -1037,24 +1065,18 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data, */ if (arg->handle) { struct ttm_base_object *base = - ttm_base_object_lookup_for_ref(dev_priv->tdev, - arg->handle); - - if (unlikely(base == NULL)) { - DRM_ERROR("Fence event invalid fence object handle " - "0x%08lx.\n", - (unsigned long)arg->handle); - return -EINVAL; - } + vmw_fence_obj_lookup(tfile, arg->handle); + + if (IS_ERR(base)) + return PTR_ERR(base); + fence = &(container_of(base, struct vmw_user_fence, base)->fence); (void) vmw_fence_obj_reference(fence); if (user_fence_rep != NULL) { - bool existed; - ret = ttm_ref_object_add(vmw_fp->tfile, base, - TTM_REF_USAGE, &existed); + TTM_REF_USAGE, NULL, false); if (unlikely(ret != 0)) { DRM_ERROR("Failed to reference a fence " "object.\n"); @@ -1097,8 +1119,7 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data, return 0; out_no_create: if (user_fence_rep != NULL) - ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile, - handle, TTM_REF_USAGE); + ttm_ref_object_base_unref(tfile, handle, TTM_REF_USAGE); out_no_ref_obj: vmw_fence_obj_unreference(&fence); return ret; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c index b8c6a03c8c54..5ec24fd801cd 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c @@ -114,8 +114,6 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data, param->value = dev_priv->has_dx; break; default: - DRM_ERROR("Illegal vmwgfx get param request: %d\n", - param->param); return -EINVAL; } @@ -186,7 +184,7 @@ int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS); struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); - if (unlikely(arg->pad64 != 0)) { + if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) { DRM_ERROR("Illegal GET_3D_CAP argument.\n"); return -EINVAL; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 8e86d6d4141b..53fa9f1c1d10 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -589,7 +589,7 @@ static int vmw_user_dmabuf_synccpu_grab(struct vmw_user_dma_buffer *user_bo, return ret; ret = ttm_ref_object_add(tfile, &user_bo->prime.base, - TTM_REF_SYNCCPU_WRITE, &existed); + TTM_REF_SYNCCPU_WRITE, &existed, false); if (ret != 0 || existed) ttm_bo_synccpu_write_release(&user_bo->dma.base); @@ -773,7 +773,7 @@ int vmw_user_dmabuf_reference(struct ttm_object_file *tfile, *handle = user_bo->prime.base.hash.key; return ttm_ref_object_add(tfile, &user_bo->prime.base, - TTM_REF_USAGE, NULL); + TTM_REF_USAGE, NULL, false); } /* diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index b445ce9b9757..05fa092c942b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -713,11 +713,14 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, 128; num_sizes = 0; - for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) + for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { + if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS) + return -EINVAL; num_sizes += req->mip_levels[i]; + } - if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * - DRM_VMW_MAX_MIP_LEVELS) + if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS || + num_sizes == 0) return -EINVAL; size = vmw_user_surface_size + 128 + @@ -891,17 +894,16 @@ vmw_surface_handle_reference(struct vmw_private *dev_priv, uint32_t handle; struct ttm_base_object *base; int ret; + bool require_exist = false; if (handle_type == DRM_VMW_HANDLE_PRIME) { ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle); if (unlikely(ret != 0)) return ret; } else { - if (unlikely(drm_is_render_client(file_priv))) { - DRM_ERROR("Render client refused legacy " - "surface reference.\n"); - return -EACCES; - } + if (unlikely(drm_is_render_client(file_priv))) + require_exist = true; + if (ACCESS_ONCE(vmw_fpriv(file_priv)->locked_master)) { DRM_ERROR("Locked master refused legacy " "surface reference.\n"); @@ -929,17 +931,14 @@ vmw_surface_handle_reference(struct vmw_private *dev_priv, /* * Make sure the surface creator has the same - * authenticating master. + * authenticating master, or is already registered with us. */ if (drm_is_primary_client(file_priv) && - user_srf->master != file_priv->master) { - DRM_ERROR("Trying to reference surface outside of" - " master domain.\n"); - ret = -EACCES; - goto out_bad_resource; - } + user_srf->master != file_priv->master) + require_exist = true; - ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL); + ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, + require_exist); if (unlikely(ret != 0)) { DRM_ERROR("Could not add a reference to a surface.\n"); goto out_bad_resource; diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 672145b0d8f5..6ef4f2fcfe43 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -3290,6 +3290,9 @@ int wacom_setup_pad_input_capabilities(struct input_dev *input_dev, { struct wacom_features *features = &wacom_wac->features; + if ((features->type == HID_GENERIC) && features->numbered_buttons > 0) + features->device_type |= WACOM_DEVICETYPE_PAD; + if (!(features->device_type & WACOM_DEVICETYPE_PAD)) return -ENODEV; diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c index f7fcfa886f72..821919dd245b 100644 --- a/drivers/iio/gyro/bmg160_core.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -27,6 +27,7 @@ #include #include #include +#include #include "bmg160.h" #define BMG160_IRQ_NAME "bmg160_event" @@ -52,6 +53,9 @@ #define BMG160_DEF_BW 100 #define BMG160_REG_PMU_BW_RES BIT(7) +#define BMG160_GYRO_REG_RESET 0x14 +#define BMG160_GYRO_RESET_VAL 0xb6 + #define BMG160_REG_INT_MAP_0 0x17 #define BMG160_INT_MAP_0_BIT_ANY BIT(1) @@ -236,6 +240,14 @@ static int bmg160_chip_init(struct bmg160_data *data) int ret; unsigned int val; + /* + * Reset chip to get it in a known good state. A delay of 30ms after + * reset is required according to the datasheet. + */ + regmap_write(data->regmap, BMG160_GYRO_REG_RESET, + BMG160_GYRO_RESET_VAL); + usleep_range(30000, 30700); + ret = regmap_read(data->regmap, BMG160_REG_CHIP_ID, &val); if (ret < 0) { dev_err(dev, "Error reading reg_chip_id\n"); diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index aaca42862389..d9c15e411e10 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -608,10 +608,9 @@ static ssize_t __iio_format_value(char *buf, size_t len, unsigned int type, tmp0 = (int)div_s64_rem(tmp, 1000000000, &tmp1); return snprintf(buf, len, "%d.%09u", tmp0, abs(tmp1)); case IIO_VAL_FRACTIONAL_LOG2: - tmp = (s64)vals[0] * 1000000000LL >> vals[1]; - tmp1 = do_div(tmp, 1000000000LL); - tmp0 = tmp; - return snprintf(buf, len, "%d.%09u", tmp0, tmp1); + tmp = shift_right((s64)vals[0] * 1000000000LL, vals[1]); + tmp0 = (int)div_s64_rem(tmp, 1000000000LL, &tmp1); + return snprintf(buf, len, "%d.%09u", tmp0, abs(tmp1)); case IIO_VAL_INT_MULTIPLE: { int i; diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index e19e0787864c..f82560a4f772 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -455,6 +455,7 @@ static const struct st_sensor_settings st_press_sensors_settings[] = { .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = true, + .bootime = 2, }, }; diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 4a157b0f4155..fd4f3ace200b 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3594,7 +3594,7 @@ static int raid_preresume(struct dm_target *ti) return r; /* Resize bitmap to adjust to changed region size (aka MD bitmap chunksize) */ - if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) && + if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) && mddev->bitmap && mddev->bitmap_info.chunksize != to_bytes(rs->requested_bitmap_chunk_sectors)) { r = bitmap_resize(mddev->bitmap, mddev->dev_sectors, to_bytes(rs->requested_bitmap_chunk_sectors), 0); diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c index 0f0eb8a3d922..78f36012eaca 100644 --- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -146,8 +146,6 @@ static int fec_decode_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio, block = fec_buffer_rs_block(v, fio, n, i); res = fec_decode_rs8(v, fio, block, &par[offset], neras); if (res < 0) { - dm_bufio_release(buf); - r = res; goto error; } @@ -172,6 +170,8 @@ static int fec_decode_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio, done: r = corrected; error: + dm_bufio_release(buf); + if (r < 0 && neras) DMERR_LIMIT("%s: FEC %llu: failed to correct: %d", v->data_dev->name, (unsigned long long)rsb, r); @@ -269,7 +269,7 @@ static int fec_read_bufs(struct dm_verity *v, struct dm_verity_io *io, &is_zero) == 0) { /* skip known zero blocks entirely */ if (is_zero) - continue; + goto done; /* * skip if we have already found the theoretical @@ -439,6 +439,13 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io, if (!verity_fec_is_enabled(v)) return -EOPNOTSUPP; + if (fio->level >= DM_VERITY_FEC_MAX_RECURSION) { + DMWARN_LIMIT("%s: FEC: recursion too deep", v->data_dev->name); + return -EIO; + } + + fio->level++; + if (type == DM_VERITY_BLOCK_TYPE_METADATA) block += v->data_blocks; @@ -470,7 +477,7 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io, if (r < 0) { r = fec_decode_rsb(v, io, fio, rsb, offset, true); if (r < 0) - return r; + goto done; } if (dest) @@ -480,6 +487,8 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io, r = verity_for_bv_block(v, io, iter, fec_bv_copy); } +done: + fio->level--; return r; } @@ -520,6 +529,7 @@ void verity_fec_init_io(struct dm_verity_io *io) memset(fio->bufs, 0, sizeof(fio->bufs)); fio->nbufs = 0; fio->output = NULL; + fio->level = 0; } /* diff --git a/drivers/md/dm-verity-fec.h b/drivers/md/dm-verity-fec.h index 7fa0298b995e..bb31ce87a933 100644 --- a/drivers/md/dm-verity-fec.h +++ b/drivers/md/dm-verity-fec.h @@ -27,6 +27,9 @@ #define DM_VERITY_FEC_BUF_MAX \ (1 << (PAGE_SHIFT - DM_VERITY_FEC_BUF_RS_BITS)) +/* maximum recursion level for verity_fec_decode */ +#define DM_VERITY_FEC_MAX_RECURSION 4 + #define DM_VERITY_OPT_FEC_DEV "use_fec_from_device" #define DM_VERITY_OPT_FEC_BLOCKS "fec_blocks" #define DM_VERITY_OPT_FEC_START "fec_start" @@ -58,6 +61,7 @@ struct dm_verity_fec_io { unsigned nbufs; /* number of buffers allocated */ u8 *output; /* buffer for corrected output */ size_t output_pos; + unsigned level; /* recursion level */ }; #ifdef CONFIG_DM_VERITY_FEC diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index 9a6eb4492172..364f6b87a728 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -569,16 +569,19 @@ static const struct sdhci_ops sdhci_esdhc_le_ops = { }; static const struct sdhci_pltfm_data sdhci_esdhc_be_pdata = { - .quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_CARD_DETECTION - | SDHCI_QUIRK_NO_CARD_NO_RESET - | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .quirks = ESDHC_DEFAULT_QUIRKS | +#ifdef CONFIG_PPC + SDHCI_QUIRK_BROKEN_CARD_DETECTION | +#endif + SDHCI_QUIRK_NO_CARD_NO_RESET | + SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, .ops = &sdhci_esdhc_be_ops, }; static const struct sdhci_pltfm_data sdhci_esdhc_le_pdata = { - .quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_CARD_DETECTION - | SDHCI_QUIRK_NO_CARD_NO_RESET - | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .quirks = ESDHC_DEFAULT_QUIRKS | + SDHCI_QUIRK_NO_CARD_NO_RESET | + SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, .ops = &sdhci_esdhc_le_ops, }; @@ -643,8 +646,7 @@ static int sdhci_esdhc_probe(struct platform_device *pdev) of_device_is_compatible(np, "fsl,p5020-esdhc") || of_device_is_compatible(np, "fsl,p4080-esdhc") || of_device_is_compatible(np, "fsl,p1020-esdhc") || - of_device_is_compatible(np, "fsl,t1040-esdhc") || - of_device_is_compatible(np, "fsl,ls1021a-esdhc")) + of_device_is_compatible(np, "fsl,t1040-esdhc")) host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION; if (of_device_is_compatible(np, "fsl,ls1021a-esdhc")) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c index de19c7c92bc6..85d949e03f79 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c @@ -2238,14 +2238,16 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); struct brcmf_p2p_info *p2p = &cfg->p2p; struct brcmf_cfg80211_vif *vif; + enum nl80211_iftype iftype; bool wait_for_disable = false; int err; brcmf_dbg(TRACE, "delete P2P vif\n"); vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); + iftype = vif->wdev.iftype; brcmf_cfg80211_arm_vif_event(cfg, vif); - switch (vif->wdev.iftype) { + switch (iftype) { case NL80211_IFTYPE_P2P_CLIENT: if (test_bit(BRCMF_VIF_STATUS_DISCONNECTING, &vif->sme_state)) wait_for_disable = true; @@ -2275,7 +2277,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) BRCMF_P2P_DISABLE_TIMEOUT); err = 0; - if (vif->wdev.iftype != NL80211_IFTYPE_P2P_DEVICE) { + if (iftype != NL80211_IFTYPE_P2P_DEVICE) { brcmf_vif_clear_mgmt_ies(vif); err = brcmf_p2p_release_p2p_if(vif); } @@ -2291,7 +2293,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) brcmf_remove_interface(vif->ifp, true); brcmf_cfg80211_arm_vif_event(cfg, NULL); - if (vif->wdev.iftype != NL80211_IFTYPE_P2P_DEVICE) + if (iftype != NL80211_IFTYPE_P2P_DEVICE) p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL; return err; diff --git a/drivers/pci/host/pci-thunder-pem.c b/drivers/pci/host/pci-thunder-pem.c index e354010fb006..cea581414e10 100644 --- a/drivers/pci/host/pci-thunder-pem.c +++ b/drivers/pci/host/pci-thunder-pem.c @@ -14,6 +14,7 @@ * Copyright (C) 2015 - 2016 Cavium, Inc. */ +#include #include #include #include @@ -319,6 +320,49 @@ static int thunder_pem_init(struct device *dev, struct pci_config_window *cfg, #if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS) +#define PEM_RES_BASE 0x87e0c0000000UL +#define PEM_NODE_MASK GENMASK(45, 44) +#define PEM_INDX_MASK GENMASK(26, 24) +#define PEM_MIN_DOM_IN_NODE 4 +#define PEM_MAX_DOM_IN_NODE 10 + +static void thunder_pem_reserve_range(struct device *dev, int seg, + struct resource *r) +{ + resource_size_t start = r->start, end = r->end; + struct resource *res; + const char *regionid; + + regionid = kasprintf(GFP_KERNEL, "PEM RC:%d", seg); + if (!regionid) + return; + + res = request_mem_region(start, end - start + 1, regionid); + if (res) + res->flags &= ~IORESOURCE_BUSY; + else + kfree(regionid); + + dev_info(dev, "%pR %s reserved\n", r, + res ? "has been" : "could not be"); +} + +static void thunder_pem_legacy_fw(struct acpi_pci_root *root, + struct resource *res_pem) +{ + int node = acpi_get_node(root->device->handle); + int index; + + if (node == NUMA_NO_NODE) + node = 0; + + index = root->segment - PEM_MIN_DOM_IN_NODE; + index -= node * PEM_MAX_DOM_IN_NODE; + res_pem->start = PEM_RES_BASE | FIELD_PREP(PEM_NODE_MASK, node) | + FIELD_PREP(PEM_INDX_MASK, index); + res_pem->flags = IORESOURCE_MEM; +} + static int thunder_pem_acpi_init(struct pci_config_window *cfg) { struct device *dev = cfg->parent; @@ -332,9 +376,23 @@ static int thunder_pem_acpi_init(struct pci_config_window *cfg) return -ENOMEM; ret = acpi_get_rc_resources(dev, "CAVA02B", root->segment, res_pem); + + /* + * If we fail to gather resources it means that we run with old + * FW where we need to calculate PEM-specific resources manually. + */ if (ret) { - dev_err(dev, "can't get rc base address\n"); - return ret; + thunder_pem_legacy_fw(root, res_pem); + /* + * Reserve 64K size PEM specific resources. The full 16M range + * size is required for thunder_pem_init() call. + */ + res_pem->end = res_pem->start + SZ_64K - 1; + thunder_pem_reserve_range(dev, root->segment, res_pem); + res_pem->end = res_pem->start + SZ_16M - 1; + + /* Reserve PCI configuration space as well. */ + thunder_pem_reserve_range(dev, root->segment, &cfg->res); } return thunder_pem_init(dev, cfg, res_pem); diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c index 7c3b54b9eb17..142a1669dd82 100644 --- a/drivers/pci/host/pci-xgene.c +++ b/drivers/pci/host/pci-xgene.c @@ -246,14 +246,11 @@ static int xgene_pcie_ecam_init(struct pci_config_window *cfg, u32 ipversion) ret = xgene_get_csr_resource(adev, &csr); if (ret) { dev_err(dev, "can't get CSR resource\n"); - kfree(port); return ret; } port->csr_base = devm_ioremap_resource(dev, &csr); - if (IS_ERR(port->csr_base)) { - kfree(port); - return -ENOMEM; - } + if (IS_ERR(port->csr_base)) + return PTR_ERR(port->csr_base); port->cfg_base = cfg->win; port->version = ipversion; diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 024def5bb3fa..a171762048e7 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1634,6 +1634,7 @@ static void quirk_pcie_mch(struct pci_dev *pdev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0x1610, quirk_pcie_mch); /* @@ -2240,6 +2241,27 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5719, quirk_brcm_5719_limit_mrrs); +#ifdef CONFIG_PCIE_IPROC_PLATFORM +static void quirk_paxc_bridge(struct pci_dev *pdev) +{ + /* The PCI config space is shared with the PAXC root port and the first + * Ethernet device. So, we need to workaround this by telling the PCI + * code that the bridge is not an Ethernet device. + */ + if (pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE) + pdev->class = PCI_CLASS_BRIDGE_PCI << 8; + + /* MPSS is not being set properly (as it is currently 0). This is + * because that area of the PCI config space is hard coded to zero, and + * is not modifiable by firmware. Set this to 2 (e.g., 512 byte MPS) + * so that the MPS can be set to the real max value. + */ + pdev->pcie_mpss = 2; +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16cd, quirk_paxc_bridge); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16f0, quirk_paxc_bridge); +#endif + /* Originally in EDAC sources for i82875P: * Intel tells BIOS developers to hide device 6 which * configures the overflow device access containing @@ -3114,30 +3136,32 @@ static void quirk_remove_d3_delay(struct pci_dev *dev) { dev->d3_delay = 0; } -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay); +/* C600 Series devices do not need 10ms d3_delay */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay); +/* Lynxpoint-H PCH devices do not need 10ms d3_delay */ +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay); /* Intel Cherrytrail devices do not need 10ms d3_delay */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2280, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3_delay); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b0, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3_delay); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3_delay); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b8, quirk_remove_d3_delay); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22d8, quirk_remove_d3_delay); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22dc, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3_delay); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3_delay); /* * Some devices may pass our check in pci_intx_mask_supported() if @@ -4137,6 +4161,26 @@ static int pci_quirk_intel_pch_acs(struct pci_dev *dev, u16 acs_flags) } /* + * These QCOM root ports do provide ACS-like features to disable peer + * transactions and validate bus numbers in requests, but do not provide an + * actual PCIe ACS capability. Hardware supports source validation but it + * will report the issue as Completer Abort instead of ACS Violation. + * Hardware doesn't support peer-to-peer and each root port is a root + * complex with unique segment numbers. It is not possible for one root + * port to pass traffic to another root port. All PCIe transactions are + * terminated inside the root port. + */ +static int pci_quirk_qcom_rp_acs(struct pci_dev *dev, u16 acs_flags) +{ + u16 flags = (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_SV); + int ret = acs_flags & ~flags ? 0 : 1; + + dev_info(&dev->dev, "Using QCOM ACS Quirk (%d)\n", ret); + + return ret; +} + +/* * Sunrise Point PCH root ports implement ACS, but unfortunately as shown in * the datasheet (Intel 100 Series Chipset Family PCH Datasheet, Vol. 2, * 12.1.46, 12.1.47)[1] this chipset uses dwords for the ACS capability and @@ -4151,15 +4195,35 @@ static int pci_quirk_intel_pch_acs(struct pci_dev *dev, u16 acs_flags) * * N.B. This doesn't fix what lspci shows. * + * The 100 series chipset specification update includes this as errata #23[3]. + * + * The 200 series chipset (Union Point) has the same bug according to the + * specification update (Intel 200 Series Chipset Family Platform Controller + * Hub, Specification Update, January 2017, Revision 001, Document# 335194-001, + * Errata 22)[4]. Per the datasheet[5], root port PCI Device IDs for this + * chipset include: + * + * 0xa290-0xa29f PCI Express Root port #{0-16} + * 0xa2e7-0xa2ee PCI Express Root port #{17-24} + * * [1] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-2.html * [2] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-1.html + * [3] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-spec-update.html + * [4] http://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-spec-update.html + * [5] http://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-datasheet-vol-1.html */ static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev) { - return pci_is_pcie(dev) && - pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT && - ((dev->device & ~0xf) == 0xa110 || - (dev->device >= 0xa167 && dev->device <= 0xa16a)); + if (!pci_is_pcie(dev) || pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT) + return false; + + switch (dev->device) { + case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */ + case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */ + return true; + } + + return false; } #define INTEL_SPT_ACS_CTRL (PCI_ACS_CAP + 4) @@ -4272,6 +4336,9 @@ static const struct pci_dev_acs_enabled { /* I219 */ { PCI_VENDOR_ID_INTEL, 0x15b7, pci_quirk_mf_endpoint_acs }, { PCI_VENDOR_ID_INTEL, 0x15b8, pci_quirk_mf_endpoint_acs }, + /* QCOM QDF2xxx root ports */ + { 0x17cb, 0x400, pci_quirk_qcom_rp_acs }, + { 0x17cb, 0x401, pci_quirk_qcom_rp_acs }, /* Intel PCH root ports */ { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs }, { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_spt_pch_acs }, diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 43cb680adbb4..8499d3ae4257 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -159,6 +159,8 @@ MODULE_LICENSE("GPL"); #define USB_INTEL_XUSB2PR 0xD0 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 +static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL }; + struct bios_args { u32 arg0; u32 arg1; @@ -2051,6 +2053,16 @@ static int asus_wmi_fan_init(struct asus_wmi *asus) return 0; } +static bool ashs_present(void) +{ + int i = 0; + while (ashs_ids[i]) { + if (acpi_dev_found(ashs_ids[i++])) + return true; + } + return false; +} + /* * WMI Driver */ @@ -2095,6 +2107,13 @@ static int asus_wmi_add(struct platform_device *pdev) if (err) goto fail_leds; + asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result); + if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT)) + asus->driver->wlan_ctrl_by_user = 1; + + if (asus->driver->wlan_ctrl_by_user && ashs_present()) + asus->driver->quirks->no_rfkill = 1; + if (!asus->driver->quirks->no_rfkill) { err = asus_wmi_rfkill_init(asus); if (err) @@ -2134,10 +2153,6 @@ static int asus_wmi_add(struct platform_device *pdev) if (err) goto fail_debugfs; - asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result); - if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT)) - asus->driver->wlan_ctrl_by_user = 1; - return 0; fail_debugfs: diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c index 7cbad0d45b9c..6ba270e0494d 100644 --- a/drivers/staging/android/ashmem.c +++ b/drivers/staging/android/ashmem.c @@ -409,6 +409,7 @@ static int ashmem_mmap(struct file *file, struct vm_area_struct *vma) ret = PTR_ERR(vmfile); goto out; } + vmfile->f_mode |= FMODE_LSEEK; asma->file = vmfile; } get_file(asma->file); diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index 61ad6c3b20a0..f4eb807a2616 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -1075,15 +1075,15 @@ static int omap8250_no_handle_irq(struct uart_port *port) } static const u8 am3352_habit = OMAP_DMA_TX_KICK | UART_ERRATA_CLOCK_DISABLE; -static const u8 am4372_habit = UART_ERRATA_CLOCK_DISABLE; +static const u8 dra742_habit = UART_ERRATA_CLOCK_DISABLE; static const struct of_device_id omap8250_dt_ids[] = { { .compatible = "ti,omap2-uart" }, { .compatible = "ti,omap3-uart" }, { .compatible = "ti,omap4-uart" }, { .compatible = "ti,am3352-uart", .data = &am3352_habit, }, - { .compatible = "ti,am4372-uart", .data = &am4372_habit, }, - { .compatible = "ti,dra742-uart", .data = &am4372_habit, }, + { .compatible = "ti,am4372-uart", .data = &am3352_habit, }, + { .compatible = "ti,dra742-uart", .data = &dra742_habit, }, {}, }; MODULE_DEVICE_TABLE(of, omap8250_dt_ids); @@ -1218,9 +1218,6 @@ static int omap8250_probe(struct platform_device *pdev) priv->omap8250_dma.rx_size = RX_TRIGGER; priv->omap8250_dma.rxconf.src_maxburst = RX_TRIGGER; priv->omap8250_dma.txconf.dst_maxburst = TX_TRIGGER; - - if (of_machine_is_compatible("ti,am33xx")) - priv->habit |= OMAP_DMA_TX_KICK; /* * pause is currently not supported atleast on omap-sdma * and edma on most earlier kernels. diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c index 3889809fd0c4..37591a4b1346 100644 --- a/drivers/usb/chipidea/ci_hdrc_msm.c +++ b/drivers/usb/chipidea/ci_hdrc_msm.c @@ -24,7 +24,6 @@ static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event) switch (event) { case CI_HDRC_CONTROLLER_RESET_EVENT: dev_dbg(dev, "CI_HDRC_CONTROLLER_RESET_EVENT received\n"); - writel(0, USB_AHBBURST); /* use AHB transactor, allow posted data writes */ writel(0x8, USB_AHBMODE); usb_phy_init(ci->usb_phy); @@ -47,7 +46,8 @@ static struct ci_hdrc_platform_data ci_hdrc_msm_platdata = { .name = "ci_hdrc_msm", .capoffset = DEF_CAPOFFSET, .flags = CI_HDRC_REGS_SHARED | - CI_HDRC_DISABLE_STREAMING, + CI_HDRC_DISABLE_STREAMING | + CI_HDRC_OVERRIDE_AHB_BURST, .notify_event = ci_hdrc_msm_notify_event, }; diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index a8a4fe4ffa30..16768abf7f7c 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -171,6 +171,7 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, int status) { struct dwc3 *dwc = dep->dwc; + unsigned int unmap_after_complete = false; req->started = false; list_del(&req->list); @@ -180,11 +181,19 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, if (req->request.status == -EINPROGRESS) req->request.status = status; - if (dwc->ep0_bounced && dep->number <= 1) + /* + * NOTICE we don't want to unmap before calling ->complete() if we're + * dealing with a bounced ep0 request. If we unmap it here, we would end + * up overwritting the contents of req->buf and this could confuse the + * gadget driver. + */ + if (dwc->ep0_bounced && dep->number <= 1) { dwc->ep0_bounced = false; - - usb_gadget_unmap_request_by_dev(dwc->sysdev, - &req->request, req->direction); + unmap_after_complete = true; + } else { + usb_gadget_unmap_request_by_dev(dwc->sysdev, + &req->request, req->direction); + } trace_dwc3_gadget_giveback(req); @@ -192,6 +201,10 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, usb_gadget_giveback_request(&dep->endpoint, &req->request); spin_lock(&dwc->lock); + if (unmap_after_complete) + usb_gadget_unmap_request_by_dev(dwc->sysdev, + &req->request, req->direction); + if (dep->number > 1) pm_runtime_put(dwc->dev); } diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index 487f0ff6ae25..76f0b0df37c1 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -54,11 +54,12 @@ static int dwc3_host_get_irq(struct dwc3 *dwc) int dwc3_host_init(struct dwc3 *dwc) { - struct property_entry props[2]; + struct property_entry props[3]; struct platform_device *xhci; int ret, irq; struct resource *res; struct platform_device *dwc3_pdev = to_platform_device(dwc->dev); + int prop_idx = 0; irq = dwc3_host_get_irq(dwc); if (irq < 0) @@ -97,8 +98,22 @@ int dwc3_host_init(struct dwc3 *dwc) memset(props, 0, sizeof(struct property_entry) * ARRAY_SIZE(props)); - if (dwc->usb3_lpm_capable) { - props[0].name = "usb3-lpm-capable"; + if (dwc->usb3_lpm_capable) + props[prop_idx++].name = "usb3-lpm-capable"; + + /** + * WORKAROUND: dwc3 revisions <=3.00a have a limitation + * where Port Disable command doesn't work. + * + * The suggested workaround is that we avoid Port Disable + * completely. + * + * This following flag tells XHCI to do just that. + */ + if (dwc->revision <= DWC3_REVISION_300A) + props[prop_idx++].name = "quirk-broken-port-ped"; + + if (prop_idx) { ret = platform_device_add_properties(xhci, props); if (ret) { dev_err(dwc->dev, "failed to add properties to xHCI\n"); diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 0ef16900efed..1d41637a53e5 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -458,6 +458,12 @@ static void xhci_disable_port(struct usb_hcd *hcd, struct xhci_hcd *xhci, return; } + if (xhci->quirks & XHCI_BROKEN_PORT_PED) { + xhci_dbg(xhci, + "Broken Port Enabled/Disabled, ignoring port disable request.\n"); + return; + } + /* Write 1 to disable the port */ writel(port_status | PORT_PE, addr); port_status = readl(addr); diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 9715200eb36e..bd02a6cd8e2c 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -232,6 +232,9 @@ static int xhci_plat_probe(struct platform_device *pdev) if (device_property_read_bool(&pdev->dev, "usb3-lpm-capable")) xhci->quirks |= XHCI_LPM_SUPPORT; + if (device_property_read_bool(&pdev->dev, "quirk-broken-port-ped")) + xhci->quirks |= XHCI_BROKEN_PORT_PED; + hcd->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0); if (IS_ERR(hcd->usb_phy)) { ret = PTR_ERR(hcd->usb_phy); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 2d7b6374b58d..ea18bf49c2eb 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1650,6 +1650,9 @@ struct xhci_hcd { #define XHCI_SSIC_PORT_UNUSED (1 << 22) #define XHCI_NO_64BIT_SUPPORT (1 << 23) #define XHCI_MISSING_CAS (1 << 24) +/* For controller with a broken Port Disable implementation */ +#define XHCI_BROKEN_PORT_PED (1 << 25) + unsigned int num_active_eps; unsigned int limit_active_eps; /* There are two roothubs to keep track of bus suspend info for */ diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 16cc18369111..9129f6cb8230 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -2071,6 +2071,20 @@ UNUSUAL_DEV( 0x1370, 0x6828, 0x0110, 0x0110, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* + * Reported by Tobias Jakobi + * The INIC-3619 bridge is used in the StarTech SLSODDU33B + * SATA-USB enclosure for slimline optical drives. + * + * The quirk enables MakeMKV to properly exchange keys with + * an installed BD drive. + */ +UNUSUAL_DEV( 0x13fd, 0x3609, 0x0209, 0x0209, + "Initio Corporation", + "INIC-3619", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE ), + /* Reported by Qinglin Ye */ UNUSUAL_DEV( 0x13fe, 0x3600, 0x0100, 0x0100, "Kingston", diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index 59e95762a6de..c5a567a73f59 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -46,6 +46,7 @@ #define S3C2410_WTCON 0x00 #define S3C2410_WTDAT 0x04 #define S3C2410_WTCNT 0x08 +#define S3C2410_WTCLRINT 0x0c #define S3C2410_WTCNT_MAXCNT 0xffff @@ -72,6 +73,7 @@ #define EXYNOS5_WDT_MASK_RESET_REG_OFFSET 0x040c #define QUIRK_HAS_PMU_CONFIG (1 << 0) #define QUIRK_HAS_RST_STAT (1 << 1) +#define QUIRK_HAS_WTCLRINT_REG (1 << 2) /* These quirks require that we have a PMU register map */ #define QUIRKS_HAVE_PMUREG (QUIRK_HAS_PMU_CONFIG | \ @@ -143,13 +145,18 @@ static const struct s3c2410_wdt_variant drv_data_s3c2410 = { }; #ifdef CONFIG_OF +static const struct s3c2410_wdt_variant drv_data_s3c6410 = { + .quirks = QUIRK_HAS_WTCLRINT_REG, +}; + static const struct s3c2410_wdt_variant drv_data_exynos5250 = { .disable_reg = EXYNOS5_WDT_DISABLE_REG_OFFSET, .mask_reset_reg = EXYNOS5_WDT_MASK_RESET_REG_OFFSET, .mask_bit = 20, .rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET, .rst_stat_bit = 20, - .quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT, + .quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT \ + | QUIRK_HAS_WTCLRINT_REG, }; static const struct s3c2410_wdt_variant drv_data_exynos5420 = { @@ -158,7 +165,8 @@ static const struct s3c2410_wdt_variant drv_data_exynos5420 = { .mask_bit = 0, .rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET, .rst_stat_bit = 9, - .quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT, + .quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT \ + | QUIRK_HAS_WTCLRINT_REG, }; static const struct s3c2410_wdt_variant drv_data_exynos7 = { @@ -167,12 +175,15 @@ static const struct s3c2410_wdt_variant drv_data_exynos7 = { .mask_bit = 23, .rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET, .rst_stat_bit = 23, /* A57 WDTRESET */ - .quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT, + .quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT \ + | QUIRK_HAS_WTCLRINT_REG, }; static const struct of_device_id s3c2410_wdt_match[] = { { .compatible = "samsung,s3c2410-wdt", .data = &drv_data_s3c2410 }, + { .compatible = "samsung,s3c6410-wdt", + .data = &drv_data_s3c6410 }, { .compatible = "samsung,exynos5250-wdt", .data = &drv_data_exynos5250 }, { .compatible = "samsung,exynos5420-wdt", @@ -418,6 +429,10 @@ static irqreturn_t s3c2410wdt_irq(int irqno, void *param) dev_info(wdt->dev, "watchdog timer expired (irq)\n"); s3c2410wdt_keepalive(&wdt->wdt_device); + + if (wdt->drv_data->quirks & QUIRK_HAS_WTCLRINT_REG) + writel(0x1, wdt->reg_base + S3C2410_WTCLRINT); + return IRQ_HANDLED; } diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 87457227812c..bdd32925a15e 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1104,6 +1104,10 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree, return -EINVAL; } + /* SMB2 TREE_CONNECT request must be called with TreeId == 0 */ + if (tcon) + tcon->tid = 0; + rc = small_smb2_init(SMB2_TREE_CONNECT, tcon, (void **) &req); if (rc) { kfree(unc_path); diff --git a/fs/dax.c b/fs/dax.c index c45598b912e1..a39b404b646a 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -369,6 +369,22 @@ static void *grab_mapping_entry(struct address_space *mapping, pgoff_t index, } spin_lock_irq(&mapping->tree_lock); + if (!entry) { + /* + * We needed to drop the page_tree lock while calling + * radix_tree_preload() and we didn't have an entry to + * lock. See if another thread inserted an entry at + * our index during this time. + */ + entry = __radix_tree_lookup(&mapping->page_tree, index, + NULL, &slot); + if (entry) { + radix_tree_preload_end(); + spin_unlock_irq(&mapping->tree_lock); + goto restart; + } + } + if (pmd_downgrade) { radix_tree_delete(&mapping->page_tree, index); mapping->nrexceptional--; @@ -384,19 +400,12 @@ static void *grab_mapping_entry(struct address_space *mapping, pgoff_t index, if (err) { spin_unlock_irq(&mapping->tree_lock); /* - * Someone already created the entry? This is a - * normal failure when inserting PMDs in a range - * that already contains PTEs. In that case we want - * to return -EEXIST immediately. - */ - if (err == -EEXIST && !(size_flag & RADIX_DAX_PMD)) - goto restart; - /* - * Our insertion of a DAX PMD entry failed, most - * likely because it collided with a PTE sized entry - * at a different index in the PMD range. We haven't - * inserted anything into the radix tree and have no - * waiters to wake. + * Our insertion of a DAX entry failed, most likely + * because we were inserting a PMD entry and it + * collided with a PTE sized entry at a different + * index in the PMD range. We haven't inserted + * anything into the radix tree and have no waiters to + * wake. */ return ERR_PTR(err); } diff --git a/fs/orangefs/super.c b/fs/orangefs/super.c index 67c24351a67f..cd261c8de53a 100644 --- a/fs/orangefs/super.c +++ b/fs/orangefs/super.c @@ -263,8 +263,13 @@ int orangefs_remount(struct orangefs_sb_info_s *orangefs_sb) if (!new_op) return -ENOMEM; new_op->upcall.req.features.features = 0; - ret = service_operation(new_op, "orangefs_features", 0); - orangefs_features = new_op->downcall.resp.features.features; + ret = service_operation(new_op, "orangefs_features", + ORANGEFS_OP_PRIORITY | ORANGEFS_OP_NO_MUTEX); + if (!ret) + orangefs_features = + new_op->downcall.resp.features.features; + else + orangefs_features = 0; op_release(new_op); } else { orangefs_features = 0; diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index b803213d1307..39c75a86c67f 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -108,7 +108,7 @@ static ssize_t sysfs_kf_read(struct kernfs_open_file *of, char *buf, { const struct sysfs_ops *ops = sysfs_file_ops(of->kn); struct kobject *kobj = of->kn->parent->priv; - size_t len; + ssize_t len; /* * If buf != of->prealloc_buf, we don't know how @@ -117,13 +117,15 @@ static ssize_t sysfs_kf_read(struct kernfs_open_file *of, char *buf, if (WARN_ON_ONCE(buf != of->prealloc_buf)) return 0; len = ops->show(kobj, of->kn->priv, buf); + if (len < 0) + return len; if (pos) { if (len <= pos) return 0; len -= pos; memmove(buf, buf + pos, len); } - return min(count, len); + return min_t(ssize_t, count, len); } /* kernfs write callback for regular sysfs files */ diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index c516d7158a21..205ab55d595d 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1318,8 +1318,16 @@ xfs_free_file_space( /* * Now that we've unmap all full blocks we'll have to zero out any * partial block at the beginning and/or end. xfs_zero_range is - * smart enough to skip any holes, including those we just created. + * smart enough to skip any holes, including those we just created, + * but we must take care not to zero beyond EOF and enlarge i_size. */ + + if (offset >= XFS_ISIZE(ip)) + return 0; + + if (offset + len > XFS_ISIZE(ip)) + len = XFS_ISIZE(ip) - offset; + return xfs_zero_range(ip, offset, len, NULL); } diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h index 0d5f4268d75f..61766a420f6b 100644 --- a/include/drm/i915_pciids.h +++ b/include/drm/i915_pciids.h @@ -226,23 +226,18 @@ INTEL_VGA_DEVICE(0x162A, info), /* Server */ \ INTEL_VGA_DEVICE(0x162D, info) /* Workstation */ -#define INTEL_BDW_RSVDM_IDS(info) \ +#define INTEL_BDW_RSVD_IDS(info) \ INTEL_VGA_DEVICE(0x1632, info), /* ULT */ \ INTEL_VGA_DEVICE(0x1636, info), /* ULT */ \ INTEL_VGA_DEVICE(0x163B, info), /* Iris */ \ - INTEL_VGA_DEVICE(0x163E, info) /* ULX */ - -#define INTEL_BDW_RSVDD_IDS(info) \ + INTEL_VGA_DEVICE(0x163E, info), /* ULX */ \ INTEL_VGA_DEVICE(0x163A, info), /* Server */ \ INTEL_VGA_DEVICE(0x163D, info) /* Workstation */ #define INTEL_BDW_IDS(info) \ INTEL_BDW_GT12_IDS(info), \ INTEL_BDW_GT3_IDS(info), \ - INTEL_BDW_RSVDM_IDS(info), \ - INTEL_BDW_GT12_IDS(info), \ - INTEL_BDW_GT3_IDS(info), \ - INTEL_BDW_RSVDD_IDS(info) + INTEL_BDW_RSVD_IDS(info) #define INTEL_CHV_IDS(info) \ INTEL_VGA_DEVICE(0x22b0, info), \ diff --git a/include/drm/ttm/ttm_object.h b/include/drm/ttm/ttm_object.h index ed953f98f0e1..1487011fe057 100644 --- a/include/drm/ttm/ttm_object.h +++ b/include/drm/ttm/ttm_object.h @@ -229,6 +229,8 @@ extern void ttm_base_object_unref(struct ttm_base_object **p_base); * @ref_type: The type of reference. * @existed: Upon completion, indicates that an identical reference object * already existed, and the refcount was upped on that object instead. + * @require_existed: Fail with -EPERM if an identical ref object didn't + * already exist. * * Checks that the base object is shareable and adds a ref object to it. * @@ -243,7 +245,8 @@ extern void ttm_base_object_unref(struct ttm_base_object **p_base); */ extern int ttm_ref_object_add(struct ttm_object_file *tfile, struct ttm_base_object *base, - enum ttm_ref_type ref_type, bool *existed); + enum ttm_ref_type ref_type, bool *existed, + bool require_existed); extern bool ttm_ref_object_exists(struct ttm_object_file *tfile, struct ttm_base_object *base); diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index b5abfda80465..4c5bca38c653 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -14,9 +14,6 @@ #ifndef __LINUX_ARM_SMCCC_H #define __LINUX_ARM_SMCCC_H -#include -#include - /* * This file provides common defines for ARM SMC Calling Convention as * specified in @@ -60,6 +57,13 @@ #define ARM_SMCCC_OWNER_TRUSTED_OS 50 #define ARM_SMCCC_OWNER_TRUSTED_OS_END 63 +#define ARM_SMCCC_QUIRK_NONE 0 +#define ARM_SMCCC_QUIRK_QCOM_A6 1 /* Save/restore register a6 */ + +#ifndef __ASSEMBLY__ + +#include +#include /** * struct arm_smccc_res - Result from SMC/HVC call * @a0-a3 result values from registers 0 to 3 @@ -72,33 +76,59 @@ struct arm_smccc_res { }; /** - * arm_smccc_smc() - make SMC calls + * struct arm_smccc_quirk - Contains quirk information + * @id: quirk identification + * @state: quirk specific information + * @a6: Qualcomm quirk entry for returning post-smc call contents of a6 + */ +struct arm_smccc_quirk { + int id; + union { + unsigned long a6; + } state; +}; + +/** + * __arm_smccc_smc() - make SMC calls * @a0-a7: arguments passed in registers 0 to 7 * @res: result values from registers 0 to 3 + * @quirk: points to an arm_smccc_quirk, or NULL when no quirks are required. * * This function is used to make SMC calls following SMC Calling Convention. * The content of the supplied param are copied to registers 0 to 7 prior * to the SMC instruction. The return values are updated with the content - * from register 0 to 3 on return from the SMC instruction. + * from register 0 to 3 on return from the SMC instruction. An optional + * quirk structure provides vendor specific behavior. */ -asmlinkage void arm_smccc_smc(unsigned long a0, unsigned long a1, +asmlinkage void __arm_smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2, unsigned long a3, unsigned long a4, unsigned long a5, unsigned long a6, unsigned long a7, - struct arm_smccc_res *res); + struct arm_smccc_res *res, struct arm_smccc_quirk *quirk); /** - * arm_smccc_hvc() - make HVC calls + * __arm_smccc_hvc() - make HVC calls * @a0-a7: arguments passed in registers 0 to 7 * @res: result values from registers 0 to 3 + * @quirk: points to an arm_smccc_quirk, or NULL when no quirks are required. * * This function is used to make HVC calls following SMC Calling * Convention. The content of the supplied param are copied to registers 0 * to 7 prior to the HVC instruction. The return values are updated with - * the content from register 0 to 3 on return from the HVC instruction. + * the content from register 0 to 3 on return from the HVC instruction. An + * optional quirk structure provides vendor specific behavior. */ -asmlinkage void arm_smccc_hvc(unsigned long a0, unsigned long a1, +asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2, unsigned long a3, unsigned long a4, unsigned long a5, unsigned long a6, unsigned long a7, - struct arm_smccc_res *res); + struct arm_smccc_res *res, struct arm_smccc_quirk *quirk); + +#define arm_smccc_smc(...) __arm_smccc_smc(__VA_ARGS__, NULL) + +#define arm_smccc_smc_quirk(...) __arm_smccc_smc(__VA_ARGS__) + +#define arm_smccc_hvc(...) __arm_smccc_hvc(__VA_ARGS__, NULL) + +#define arm_smccc_hvc_quirk(...) __arm_smccc_hvc(__VA_ARGS__) +#endif /*__ASSEMBLY__*/ #endif /*__LINUX_ARM_SMCCC_H*/ diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 73dda0edcb97..a4f77feecbb0 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2516,6 +2516,8 @@ #define PCI_DEVICE_ID_KORENIX_JETCARDF2 0x1700 #define PCI_DEVICE_ID_KORENIX_JETCARDF3 0x17ff +#define PCI_VENDOR_ID_HUAWEI 0x19e5 + #define PCI_VENDOR_ID_NETRONOME 0x19ee #define PCI_DEVICE_ID_NETRONOME_NFP3200 0x3200 #define PCI_DEVICE_ID_NETRONOME_NFP3240 0x3240 diff --git a/include/linux/random.h b/include/linux/random.h index 7bd2403e4fef..16ab429735a7 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -37,7 +37,6 @@ extern void get_random_bytes(void *buf, int nbytes); extern int add_random_ready_callback(struct random_ready_callback *rdy); extern void del_random_ready_callback(struct random_ready_callback *rdy); extern void get_random_bytes_arch(void *buf, int nbytes); -extern int random_int_secret_init(void); #ifndef MODULE extern const struct file_operations random_fops, urandom_fops; diff --git a/init/main.c b/init/main.c index b0c9d6facef9..09beb7fc6e8c 100644 --- a/init/main.c +++ b/init/main.c @@ -879,7 +879,6 @@ static void __init do_basic_setup(void) do_ctors(); usermodehelper_enable(); do_initcalls(); - random_int_secret_init(); } static void __init do_pre_smp_initcalls(void) diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 49ba7c1ade9d..a5caecef88be 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -181,11 +181,17 @@ static void ptrace_unfreeze_traced(struct task_struct *task) WARN_ON(!task->ptrace || task->parent != current); + /* + * PTRACE_LISTEN can allow ptrace_trap_notify to wake us up remotely. + * Recheck state under the lock to close this race. + */ spin_lock_irq(&task->sighand->siglock); - if (__fatal_signal_pending(task)) - wake_up_state(task, __TASK_TRACED); - else - task->state = TASK_TRACED; + if (task->state == __TASK_TRACED) { + if (__fatal_signal_pending(task)) + wake_up_state(task, __TASK_TRACED); + else + task->state = TASK_TRACED; + } spin_unlock_irq(&task->sighand->siglock); } diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index a85739efcc30..8df48ccb8af6 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -4825,9 +4825,9 @@ static __init int test_ringbuffer(void) rb_data[cpu].cnt = cpu; rb_threads[cpu] = kthread_create(rb_test, &rb_data[cpu], "rbtester/%d", cpu); - if (WARN_ON(!rb_threads[cpu])) { + if (WARN_ON(IS_ERR(rb_threads[cpu]))) { pr_cont("FAILED\n"); - ret = -1; + ret = PTR_ERR(rb_threads[cpu]); goto out_free; } @@ -4837,9 +4837,9 @@ static __init int test_ringbuffer(void) /* Now create the rb hammer! */ rb_hammer = kthread_run(rb_hammer_test, NULL, "rbhammer"); - if (WARN_ON(!rb_hammer)) { + if (WARN_ON(IS_ERR(rb_hammer))) { pr_cont("FAILED\n"); - ret = -1; + ret = PTR_ERR(rb_hammer); goto out_free; } diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 1e7873e40c9a..dc8a2672c407 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1526,7 +1526,6 @@ COMPAT_SYSCALL_DEFINE5(get_mempolicy, int __user *, policy, COMPAT_SYSCALL_DEFINE3(set_mempolicy, int, mode, compat_ulong_t __user *, nmask, compat_ulong_t, maxnode) { - long err = 0; unsigned long __user *nm = NULL; unsigned long nr_bits, alloc_size; DECLARE_BITMAP(bm, MAX_NUMNODES); @@ -1535,14 +1534,13 @@ COMPAT_SYSCALL_DEFINE3(set_mempolicy, int, mode, compat_ulong_t __user *, nmask, alloc_size = ALIGN(nr_bits, BITS_PER_LONG) / 8; if (nmask) { - err = compat_get_bitmap(bm, nmask, nr_bits); + if (compat_get_bitmap(bm, nmask, nr_bits)) + return -EFAULT; nm = compat_alloc_user_space(alloc_size); - err |= copy_to_user(nm, bm, alloc_size); + if (copy_to_user(nm, bm, alloc_size)) + return -EFAULT; } - if (err) - return -EFAULT; - return sys_set_mempolicy(mode, nm, nr_bits+1); } @@ -1550,7 +1548,6 @@ COMPAT_SYSCALL_DEFINE6(mbind, compat_ulong_t, start, compat_ulong_t, len, compat_ulong_t, mode, compat_ulong_t __user *, nmask, compat_ulong_t, maxnode, compat_ulong_t, flags) { - long err = 0; unsigned long __user *nm = NULL; unsigned long nr_bits, alloc_size; nodemask_t bm; @@ -1559,14 +1556,13 @@ COMPAT_SYSCALL_DEFINE6(mbind, compat_ulong_t, start, compat_ulong_t, len, alloc_size = ALIGN(nr_bits, BITS_PER_LONG) / 8; if (nmask) { - err = compat_get_bitmap(nodes_addr(bm), nmask, nr_bits); + if (compat_get_bitmap(nodes_addr(bm), nmask, nr_bits)) + return -EFAULT; nm = compat_alloc_user_space(alloc_size); - err |= copy_to_user(nm, nodes_addr(bm), alloc_size); + if (copy_to_user(nm, nodes_addr(bm), alloc_size)) + return -EFAULT; } - if (err) - return -EFAULT; - return sys_mbind(start, len, mode, nm, nr_bits+1, flags); } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 1a5f6655958e..1aec370bf9e9 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4381,13 +4381,13 @@ void show_free_areas(unsigned int filter) K(node_page_state(pgdat, NR_FILE_MAPPED)), K(node_page_state(pgdat, NR_FILE_DIRTY)), K(node_page_state(pgdat, NR_WRITEBACK)), + K(node_page_state(pgdat, NR_SHMEM)), #ifdef CONFIG_TRANSPARENT_HUGEPAGE K(node_page_state(pgdat, NR_SHMEM_THPS) * HPAGE_PMD_NR), K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED) * HPAGE_PMD_NR), K(node_page_state(pgdat, NR_ANON_THPS) * HPAGE_PMD_NR), #endif - K(node_page_state(pgdat, NR_SHMEM)), K(node_page_state(pgdat, NR_WRITEBACK_TEMP)), K(node_page_state(pgdat, NR_UNSTABLE_NFS)), node_page_state(pgdat, NR_PAGES_SCANNED), diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index d37ae7dc114b..56d491950390 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -718,7 +718,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) ieee80211_recalc_ps(local); if (sdata->vif.type == NL80211_IFTYPE_MONITOR || - sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { + sdata->vif.type == NL80211_IFTYPE_AP_VLAN || + local->ops->wake_tx_queue) { /* XXX: for AP_VLAN, actually track AP queues */ netif_tx_start_all_queues(dev); } else if (dev) { diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c index 14b3f007826d..2927d06faa6e 100644 --- a/net/wireless/sysfs.c +++ b/net/wireless/sysfs.c @@ -130,12 +130,10 @@ static int wiphy_resume(struct device *dev) /* Age scan results with time spent in suspend */ cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at); - if (rdev->ops->resume) { - rtnl_lock(); - if (rdev->wiphy.registered) - ret = rdev_resume(rdev); - rtnl_unlock(); - } + rtnl_lock(); + if (rdev->wiphy.registered && rdev->ops->resume) + ret = rdev_resume(rdev); + rtnl_unlock(); return ret; } diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c index 97bafac3bc15..17d20b99f041 100644 --- a/sound/soc/codecs/rt5670.c +++ b/sound/soc/codecs/rt5670.c @@ -2814,6 +2814,7 @@ MODULE_DEVICE_TABLE(i2c, rt5670_i2c_id); static const struct acpi_device_id rt5670_acpi_match[] = { { "10EC5670", 0}, { "10EC5672", 0}, + { "10EC5640", 0}, /* quirk */ { }, }; MODULE_DEVICE_TABLE(acpi, rt5670_acpi_match); diff --git a/sound/soc/intel/atom/sst/sst_acpi.c b/sound/soc/intel/atom/sst/sst_acpi.c index f4d92bbc5373..63820080dd16 100644 --- a/sound/soc/intel/atom/sst/sst_acpi.c +++ b/sound/soc/intel/atom/sst/sst_acpi.c @@ -400,6 +400,7 @@ static int sst_acpi_remove(struct platform_device *pdev) static unsigned long cht_machine_id; #define CHT_SURFACE_MACH 1 +#define BYT_THINKPAD_10 2 static int cht_surface_quirk_cb(const struct dmi_system_id *id) { @@ -407,6 +408,23 @@ static int cht_surface_quirk_cb(const struct dmi_system_id *id) return 1; } +static int byt_thinkpad10_quirk_cb(const struct dmi_system_id *id) +{ + cht_machine_id = BYT_THINKPAD_10; + return 1; +} + + +static const struct dmi_system_id byt_table[] = { + { + .callback = byt_thinkpad10_quirk_cb, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "20C3001VHH"), + }, + }, + { } +}; static const struct dmi_system_id cht_table[] = { { @@ -424,6 +442,10 @@ static struct sst_acpi_mach cht_surface_mach = { "10EC5640", "cht-bsw-rt5645", "intel/fw_sst_22a8.bin", "cht-bsw", NULL, &chv_platform_data }; +static struct sst_acpi_mach byt_thinkpad_10 = { + "10EC5640", "cht-bsw-rt5672", "intel/fw_sst_0f28.bin", "cht-bsw", NULL, + &byt_rvp_platform_data }; + static struct sst_acpi_mach *cht_quirk(void *arg) { struct sst_acpi_mach *mach = arg; @@ -436,8 +458,21 @@ static struct sst_acpi_mach *cht_quirk(void *arg) return mach; } +static struct sst_acpi_mach *byt_quirk(void *arg) +{ + struct sst_acpi_mach *mach = arg; + + dmi_check_system(byt_table); + + if (cht_machine_id == BYT_THINKPAD_10) + return &byt_thinkpad_10; + else + return mach; +} + + static struct sst_acpi_mach sst_acpi_bytcr[] = { - {"10EC5640", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL, + {"10EC5640", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", byt_quirk, &byt_rvp_platform_data }, {"10EC5642", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL, &byt_rvp_platform_data }, diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 8d2fb2d6f532..1bd985f01c73 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -387,6 +387,16 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { BYT_RT5640_SSP0_AIF1), }, + { + .callback = byt_rt5640_quirk_cb, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Insyde"), + }, + .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP | + BYT_RT5640_MCLK_EN | + BYT_RT5640_SSP0_AIF1), + + }, {} }; diff --git a/sound/soc/intel/boards/cht_bsw_rt5645.c b/sound/soc/intel/boards/cht_bsw_rt5645.c index f504a0e18f91..753938371965 100644 --- a/sound/soc/intel/boards/cht_bsw_rt5645.c +++ b/sound/soc/intel/boards/cht_bsw_rt5645.c @@ -24,6 +24,9 @@ #include #include #include +#include +#include +#include #include #include #include @@ -45,6 +48,7 @@ struct cht_mc_private { struct snd_soc_jack jack; struct cht_acpi_card *acpi_card; char codec_name[16]; + struct clk *mclk; }; static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card) @@ -65,6 +69,7 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w, struct snd_soc_dapm_context *dapm = w->dapm; struct snd_soc_card *card = dapm->card; struct snd_soc_dai *codec_dai; + struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); int ret; codec_dai = cht_get_codec_dai(card); @@ -73,19 +78,30 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w, return -EIO; } - if (!SND_SOC_DAPM_EVENT_OFF(event)) - return 0; + if (SND_SOC_DAPM_EVENT_ON(event)) { + if (ctx->mclk) { + ret = clk_prepare_enable(ctx->mclk); + if (ret < 0) { + dev_err(card->dev, + "could not configure MCLK state"); + return ret; + } + } + } else { + /* Set codec sysclk source to its internal clock because codec PLL will + * be off when idle and MCLK will also be off when codec is + * runtime suspended. Codec needs clock for jack detection and button + * press. MCLK is turned off with clock framework or ACPI. + */ + ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK, + 48000 * 512, SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(card->dev, "can't set codec sysclk: %d\n", ret); + return ret; + } - /* Set codec sysclk source to its internal clock because codec PLL will - * be off when idle and MCLK will also be off by ACPI when codec is - * runtime suspended. Codec needs clock for jack detection and button - * press. - */ - ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK, - 0, SND_SOC_CLOCK_IN); - if (ret < 0) { - dev_err(card->dev, "can't set codec sysclk: %d\n", ret); - return ret; + if (ctx->mclk) + clk_disable_unprepare(ctx->mclk); } return 0; @@ -97,7 +113,7 @@ static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { SND_SOC_DAPM_MIC("Int Mic", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, - platform_clock_control, SND_SOC_DAPM_POST_PMD), + platform_clock_control, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), }; static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = { @@ -225,6 +241,26 @@ static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) rt5645_set_jack_detect(codec, &ctx->jack, &ctx->jack, &ctx->jack); + if (ctx->mclk) { + /* + * The firmware might enable the clock at + * boot (this information may or may not + * be reflected in the enable clock register). + * To change the rate we must disable the clock + * first to cover these cases. Due to common + * clock framework restrictions that do not allow + * to disable a clock that has not been enabled, + * we need to enable the clock first. + */ + ret = clk_prepare_enable(ctx->mclk); + if (!ret) + clk_disable_unprepare(ctx->mclk); + + ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ); + + if (ret) + dev_err(runtime->dev, "unable to set MCLK rate\n"); + } return ret; } @@ -349,6 +385,18 @@ static struct cht_acpi_card snd_soc_cards[] = { static char cht_rt5640_codec_name[16]; /* i2c-:00 with HID being 8 chars */ +static bool is_valleyview(void) +{ + static const struct x86_cpu_id cpu_ids[] = { + { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */ + {} + }; + + if (!x86_match_cpu(cpu_ids)) + return false; + return true; +} + static int snd_cht_mc_probe(struct platform_device *pdev) { int ret_val = 0; @@ -358,22 +406,32 @@ static int snd_cht_mc_probe(struct platform_device *pdev) struct sst_acpi_mach *mach; const char *i2c_name = NULL; int dai_index = 0; + bool found = false; drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); if (!drv) return -ENOMEM; + mach = (&pdev->dev)->platform_data; + for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) { - if (acpi_dev_found(snd_soc_cards[i].codec_id)) { + if (acpi_dev_found(snd_soc_cards[i].codec_id) && + (!strncmp(snd_soc_cards[i].codec_id, mach->id, 8))) { dev_dbg(&pdev->dev, "found codec %s\n", snd_soc_cards[i].codec_id); card = snd_soc_cards[i].soc_card; drv->acpi_card = &snd_soc_cards[i]; + found = true; break; } } + + if (!found) { + dev_err(&pdev->dev, "No matching HID found in supported list\n"); + return -ENODEV; + } + card->dev = &pdev->dev; - mach = card->dev->platform_data; sprintf(drv->codec_name, "i2c-%s:00", drv->acpi_card->codec_id); /* set correct codec name */ @@ -391,6 +449,16 @@ static int snd_cht_mc_probe(struct platform_device *pdev) cht_dailink[dai_index].codec_name = cht_rt5640_codec_name; } + if (is_valleyview()) { + drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3"); + if (IS_ERR(drv->mclk)) { + dev_err(&pdev->dev, + "Failed to get MCLK from pmc_plt_clk_3: %ld\n", + PTR_ERR(drv->mclk)); + return PTR_ERR(drv->mclk); + } + } + snd_soc_card_set_drvdata(card, drv); ret_val = devm_snd_soc_register_card(&pdev->dev, card); if (ret_val) { diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index f24d19526603..268f2bf691b3 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -14,9 +14,11 @@ #include #include #include +#include #include #include #include +#include #include #include @@ -92,6 +94,7 @@ struct sun4i_i2s { struct clk *bus_clk; struct clk *mod_clk; struct regmap *regmap; + struct reset_control *rst; unsigned int mclk_freq; @@ -651,9 +654,22 @@ static int sun4i_i2s_runtime_suspend(struct device *dev) return 0; } +struct sun4i_i2s_quirks { + bool has_reset; +}; + +static const struct sun4i_i2s_quirks sun4i_a10_i2s_quirks = { + .has_reset = false, +}; + +static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = { + .has_reset = true, +}; + static int sun4i_i2s_probe(struct platform_device *pdev) { struct sun4i_i2s *i2s; + const struct sun4i_i2s_quirks *quirks; struct resource *res; void __iomem *regs; int irq, ret; @@ -674,6 +690,12 @@ static int sun4i_i2s_probe(struct platform_device *pdev) return irq; } + quirks = of_device_get_match_data(&pdev->dev); + if (!quirks) { + dev_err(&pdev->dev, "Failed to determine the quirks to use\n"); + return -ENODEV; + } + i2s->bus_clk = devm_clk_get(&pdev->dev, "apb"); if (IS_ERR(i2s->bus_clk)) { dev_err(&pdev->dev, "Can't get our bus clock\n"); @@ -692,7 +714,24 @@ static int sun4i_i2s_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Can't get our mod clock\n"); return PTR_ERR(i2s->mod_clk); } - + + if (quirks->has_reset) { + i2s->rst = devm_reset_control_get(&pdev->dev, NULL); + if (IS_ERR(i2s->rst)) { + dev_err(&pdev->dev, "Failed to get reset control\n"); + return PTR_ERR(i2s->rst); + } + } + + if (!IS_ERR(i2s->rst)) { + ret = reset_control_deassert(i2s->rst); + if (ret) { + dev_err(&pdev->dev, + "Failed to deassert the reset control\n"); + return -EINVAL; + } + } + i2s->playback_dma_data.addr = res->start + SUN4I_I2S_FIFO_TX_REG; i2s->playback_dma_data.maxburst = 4; @@ -727,23 +766,37 @@ static int sun4i_i2s_probe(struct platform_device *pdev) sun4i_i2s_runtime_suspend(&pdev->dev); err_pm_disable: pm_runtime_disable(&pdev->dev); + if (!IS_ERR(i2s->rst)) + reset_control_assert(i2s->rst); return ret; } static int sun4i_i2s_remove(struct platform_device *pdev) { + struct sun4i_i2s *i2s = dev_get_drvdata(&pdev->dev); + snd_dmaengine_pcm_unregister(&pdev->dev); pm_runtime_disable(&pdev->dev); if (!pm_runtime_status_suspended(&pdev->dev)) sun4i_i2s_runtime_suspend(&pdev->dev); + if (!IS_ERR(i2s->rst)) + reset_control_assert(i2s->rst); + return 0; } static const struct of_device_id sun4i_i2s_match[] = { - { .compatible = "allwinner,sun4i-a10-i2s", }, + { + .compatible = "allwinner,sun4i-a10-i2s", + .data = &sun4i_a10_i2s_quirks, + }, + { + .compatible = "allwinner,sun6i-a31-i2s", + .data = &sun6i_a31_i2s_quirks, + }, {} }; MODULE_DEVICE_TABLE(of, sun4i_i2s_match);