diff options
190 files changed, 1436 insertions, 841 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl index 4ba0a2a61926..640f65e79ef1 100644 --- a/Documentation/ABI/testing/sysfs-class-cxl +++ b/Documentation/ABI/testing/sysfs-class-cxl @@ -220,8 +220,11 @@ What: /sys/class/cxl/<card>/reset Date: October 2014 Contact: linuxppc-dev@lists.ozlabs.org Description: write only - Writing 1 will issue a PERST to card which may cause the card - to reload the FPGA depending on load_image_on_perst. + Writing 1 will issue a PERST to card provided there are no + contexts active on any one of the card AFUs. This may cause + the card to reload the FPGA depending on load_image_on_perst. + Writing -1 will do a force PERST irrespective of any active + contexts on the card AFUs. Users: https://github.com/ibm-capi/libcxl What: /sys/class/cxl/<card>/perst_reloads_same_image (not in a guest) diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt index 5e60ad18f147..2ad18c4ea55c 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt @@ -43,7 +43,9 @@ aspeed,ast2500-pinctrl, aspeed,g5-pinctrl: GPID0 GPID2 GPIE0 I2C10 I2C11 I2C12 I2C13 I2C14 I2C3 I2C4 I2C5 I2C6 I2C7 I2C8 I2C9 MAC1LINK MDIO1 MDIO2 OSCCLK PEWAKE PWM0 PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 -RGMII1 RGMII2 RMII1 RMII2 SD1 SPI1 TIMER4 TIMER5 TIMER6 TIMER7 TIMER8 +RGMII1 RGMII2 RMII1 RMII2 SD1 SPI1 SPI1DEBUG SPI1PASSTHRU TIMER4 TIMER5 TIMER6 +TIMER7 TIMER8 VGABIOSROM + Examples: diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index 219ffd41a911..74329fd0add2 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -395,32 +395,6 @@ is not associated with a file: or if empty, the mapping is anonymous. -The /proc/PID/task/TID/maps is a view of the virtual memory from the viewpoint -of the individual tasks of a process. In this file you will see a mapping marked -as [stack] if that task sees it as a stack. Hence, for the example above, the -task-level map, i.e. /proc/PID/task/TID/maps for thread 1001 will look like this: - -08048000-08049000 r-xp 00000000 03:00 8312 /opt/test -08049000-0804a000 rw-p 00001000 03:00 8312 /opt/test -0804a000-0806b000 rw-p 00000000 00:00 0 [heap] -a7cb1000-a7cb2000 ---p 00000000 00:00 0 -a7cb2000-a7eb2000 rw-p 00000000 00:00 0 -a7eb2000-a7eb3000 ---p 00000000 00:00 0 -a7eb3000-a7ed5000 rw-p 00000000 00:00 0 [stack] -a7ed5000-a8008000 r-xp 00000000 03:00 4222 /lib/libc.so.6 -a8008000-a800a000 r--p 00133000 03:00 4222 /lib/libc.so.6 -a800a000-a800b000 rw-p 00135000 03:00 4222 /lib/libc.so.6 -a800b000-a800e000 rw-p 00000000 00:00 0 -a800e000-a8022000 r-xp 00000000 03:00 14462 /lib/libpthread.so.0 -a8022000-a8023000 r--p 00013000 03:00 14462 /lib/libpthread.so.0 -a8023000-a8024000 rw-p 00014000 03:00 14462 /lib/libpthread.so.0 -a8024000-a8027000 rw-p 00000000 00:00 0 -a8027000-a8043000 r-xp 00000000 03:00 8317 /lib/ld-linux.so.2 -a8043000-a8044000 r--p 0001b000 03:00 8317 /lib/ld-linux.so.2 -a8044000-a8045000 rw-p 0001c000 03:00 8317 /lib/ld-linux.so.2 -aff35000-aff4a000 rw-p 00000000 00:00 0 -ffffe000-fffff000 r-xp 00000000 00:00 0 [vdso] - The /proc/PID/smaps is an extension based on maps, showing the memory consumption for each of the process's mappings. For each of mappings there is a series of lines such as the following: diff --git a/MAINTAINERS b/MAINTAINERS index 1cd38a7e0064..c44795306342 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4620,8 +4620,9 @@ F: sound/usb/misc/ua101.c EXTENSIBLE FIRMWARE INTERFACE (EFI) M: Matt Fleming <matt@codeblueprint.co.uk> +M: Ard Biesheuvel <ard.biesheuvel@linaro.org> L: linux-efi@vger.kernel.org -T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git S: Maintained F: Documentation/efi-stub.txt F: arch/ia64/kernel/efi.c @@ -8212,7 +8213,7 @@ F: include/linux/mfd/ MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM M: Ulf Hansson <ulf.hansson@linaro.org> L: linux-mmc@vger.kernel.org -T: git git://git.linaro.org/people/ulf.hansson/mmc.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git S: Maintained F: Documentation/devicetree/bindings/mmc/ F: drivers/mmc/ @@ -9299,7 +9300,7 @@ S: Maintained F: drivers/pci/host/*designware* PCI DRIVER FOR SYNOPSYS PROTOTYPING DEVICE -M: Joao Pinto <jpinto@synopsys.com> +M: Jose Abreu <Jose.Abreu@synopsys.com> L: linux-pci@vger.kernel.org S: Maintained F: Documentation/devicetree/bindings/pci/designware-pcie.txt diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c index d9ee81769899..940dfb406591 100644 --- a/arch/alpha/kernel/ptrace.c +++ b/arch/alpha/kernel/ptrace.c @@ -157,14 +157,16 @@ put_reg(struct task_struct *task, unsigned long regno, unsigned long data) static inline int read_int(struct task_struct *task, unsigned long addr, int * data) { - int copied = access_process_vm(task, addr, data, sizeof(int), 0); + int copied = access_process_vm(task, addr, data, sizeof(int), + FOLL_FORCE); return (copied == sizeof(int)) ? 0 : -EIO; } static inline int write_int(struct task_struct *task, unsigned long addr, int data) { - int copied = access_process_vm(task, addr, &data, sizeof(int), 1); + int copied = access_process_vm(task, addr, &data, sizeof(int), + FOLL_FORCE | FOLL_WRITE); return (copied == sizeof(int)) ? 0 : -EIO; } @@ -281,7 +283,8 @@ long arch_ptrace(struct task_struct *child, long request, /* When I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ case PTRACE_PEEKDATA: - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); + copied = access_process_vm(child, addr, &tmp, sizeof(tmp), + FOLL_FORCE); ret = -EIO; if (copied != sizeof(tmp)) break; diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index 03e9273f1876..08bb84f2ad58 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -1312,6 +1312,13 @@ static int init_hyp_mode(void) goto out_err; } + err = create_hyp_mappings(kvm_ksym_ref(__bss_start), + kvm_ksym_ref(__bss_stop), PAGE_HYP_RO); + if (err) { + kvm_err("Cannot map bss section\n"); + goto out_err; + } + /* * Map the Hyp stack pages */ diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 30398dbc940a..969ef880d234 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -915,7 +915,7 @@ config RANDOMIZE_BASE config RANDOMIZE_MODULE_REGION_FULL bool "Randomize the module region independently from the core kernel" - depends on RANDOMIZE_BASE + depends on RANDOMIZE_BASE && !DYNAMIC_FTRACE default y help Randomizes the location of the module region without considering the diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index ab51aed6b6c1..3635b8662724 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -15,7 +15,7 @@ CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET) GZFLAGS :=-9 ifneq ($(CONFIG_RELOCATABLE),) -LDFLAGS_vmlinux += -pie -Bsymbolic +LDFLAGS_vmlinux += -pie -shared -Bsymbolic endif ifeq ($(CONFIG_ARM64_ERRATUM_843419),y) diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 758d74fedfad..a27c3245ba21 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -94,7 +94,7 @@ struct arm64_cpu_capabilities { u16 capability; int def_scope; /* default scope */ bool (*matches)(const struct arm64_cpu_capabilities *caps, int scope); - void (*enable)(void *); /* Called on all active CPUs */ + int (*enable)(void *); /* Called on all active CPUs */ union { struct { /* To be used for erratum handling only */ u32 midr_model; diff --git a/arch/arm64/include/asm/exec.h b/arch/arm64/include/asm/exec.h index db0563c23482..f7865dd9d868 100644 --- a/arch/arm64/include/asm/exec.h +++ b/arch/arm64/include/asm/exec.h @@ -18,6 +18,9 @@ #ifndef __ASM_EXEC_H #define __ASM_EXEC_H +#include <linux/sched.h> + extern unsigned long arch_align_stack(unsigned long sp); +void uao_thread_switch(struct task_struct *next); #endif /* __ASM_EXEC_H */ diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index fd9d5fd788f5..f5ea0ba70f07 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -178,11 +178,6 @@ static inline bool kvm_vcpu_dabt_isvalid(const struct kvm_vcpu *vcpu) return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_ISV); } -static inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu) -{ - return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WNR); -} - static inline bool kvm_vcpu_dabt_issext(const struct kvm_vcpu *vcpu) { return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SSE); @@ -203,6 +198,12 @@ static inline bool kvm_vcpu_dabt_iss1tw(const struct kvm_vcpu *vcpu) return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_S1PTW); } +static inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu) +{ + return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WNR) || + kvm_vcpu_dabt_iss1tw(vcpu); /* AF/DBM update */ +} + static inline bool kvm_vcpu_dabt_is_cm(const struct kvm_vcpu *vcpu) { return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_CM); diff --git a/arch/arm64/include/asm/module.h b/arch/arm64/include/asm/module.h index e12af6754634..06ff7fd9e81f 100644 --- a/arch/arm64/include/asm/module.h +++ b/arch/arm64/include/asm/module.h @@ -17,6 +17,7 @@ #define __ASM_MODULE_H #include <asm-generic/module.h> +#include <asm/memory.h> #define MODULE_ARCH_VERMAGIC "aarch64" @@ -32,6 +33,10 @@ u64 module_emit_plt_entry(struct module *mod, const Elf64_Rela *rela, Elf64_Sym *sym); #ifdef CONFIG_RANDOMIZE_BASE +#ifdef CONFIG_MODVERSIONS +#define ARCH_RELOCATES_KCRCTAB +#define reloc_start (kimage_vaddr - KIMAGE_VADDR) +#endif extern u64 module_alloc_base; #else #define module_alloc_base ((u64)_etext - MODULES_VSIZE) diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h index 2fee2f59288c..5394c8405e66 100644 --- a/arch/arm64/include/asm/percpu.h +++ b/arch/arm64/include/asm/percpu.h @@ -44,48 +44,44 @@ static inline unsigned long __percpu_##op(void *ptr, \ \ switch (size) { \ case 1: \ - do { \ - asm ("//__per_cpu_" #op "_1\n" \ - "ldxrb %w[ret], %[ptr]\n" \ + asm ("//__per_cpu_" #op "_1\n" \ + "1: ldxrb %w[ret], %[ptr]\n" \ #asm_op " %w[ret], %w[ret], %w[val]\n" \ - "stxrb %w[loop], %w[ret], %[ptr]\n" \ - : [loop] "=&r" (loop), [ret] "=&r" (ret), \ - [ptr] "+Q"(*(u8 *)ptr) \ - : [val] "Ir" (val)); \ - } while (loop); \ + " stxrb %w[loop], %w[ret], %[ptr]\n" \ + " cbnz %w[loop], 1b" \ + : [loop] "=&r" (loop), [ret] "=&r" (ret), \ + [ptr] "+Q"(*(u8 *)ptr) \ + : [val] "Ir" (val)); \ break; \ case 2: \ - do { \ - asm ("//__per_cpu_" #op "_2\n" \ - "ldxrh %w[ret], %[ptr]\n" \ + asm ("//__per_cpu_" #op "_2\n" \ + "1: ldxrh %w[ret], %[ptr]\n" \ #asm_op " %w[ret], %w[ret], %w[val]\n" \ - "stxrh %w[loop], %w[ret], %[ptr]\n" \ - : [loop] "=&r" (loop), [ret] "=&r" (ret), \ - [ptr] "+Q"(*(u16 *)ptr) \ - : [val] "Ir" (val)); \ - } while (loop); \ + " stxrh %w[loop], %w[ret], %[ptr]\n" \ + " cbnz %w[loop], 1b" \ + : [loop] "=&r" (loop), [ret] "=&r" (ret), \ + [ptr] "+Q"(*(u16 *)ptr) \ + : [val] "Ir" (val)); \ break; \ case 4: \ - do { \ - asm ("//__per_cpu_" #op "_4\n" \ - "ldxr %w[ret], %[ptr]\n" \ + asm ("//__per_cpu_" #op "_4\n" \ + "1: ldxr %w[ret], %[ptr]\n" \ #asm_op " %w[ret], %w[ret], %w[val]\n" \ - "stxr %w[loop], %w[ret], %[ptr]\n" \ - : [loop] "=&r" (loop), [ret] "=&r" (ret), \ - [ptr] "+Q"(*(u32 *)ptr) \ - : [val] "Ir" (val)); \ - } while (loop); \ + " stxr %w[loop], %w[ret], %[ptr]\n" \ + " cbnz %w[loop], 1b" \ + : [loop] "=&r" (loop), [ret] "=&r" (ret), \ + [ptr] "+Q"(*(u32 *)ptr) \ + : [val] "Ir" (val)); \ break; \ case 8: \ - do { \ - asm ("//__per_cpu_" #op "_8\n" \ - "ldxr %[ret], %[ptr]\n" \ + asm ("//__per_cpu_" #op "_8\n" \ + "1: ldxr %[ret], %[ptr]\n" \ #asm_op " %[ret], %[ret], %[val]\n" \ - "stxr %w[loop], %[ret], %[ptr]\n" \ - : [loop] "=&r" (loop), [ret] "=&r" (ret), \ - [ptr] "+Q"(*(u64 *)ptr) \ - : [val] "Ir" (val)); \ - } while (loop); \ + " stxr %w[loop], %[ret], %[ptr]\n" \ + " cbnz %w[loop], 1b" \ + : [loop] "=&r" (loop), [ret] "=&r" (ret), \ + [ptr] "+Q"(*(u64 *)ptr) \ + : [val] "Ir" (val)); \ break; \ default: \ BUILD_BUG(); \ @@ -150,44 +146,40 @@ static inline unsigned long __percpu_xchg(void *ptr, unsigned long val, switch (size) { case 1: - do { - asm ("//__percpu_xchg_1\n" - "ldxrb %w[ret], %[ptr]\n" - "stxrb %w[loop], %w[val], %[ptr]\n" - : [loop] "=&r"(loop), [ret] "=&r"(ret), - [ptr] "+Q"(*(u8 *)ptr) - : [val] "r" (val)); - } while (loop); + asm ("//__percpu_xchg_1\n" + "1: ldxrb %w[ret], %[ptr]\n" + " stxrb %w[loop], %w[val], %[ptr]\n" + " cbnz %w[loop], 1b" + : [loop] "=&r"(loop), [ret] "=&r"(ret), + [ptr] "+Q"(*(u8 *)ptr) + : [val] "r" (val)); break; case 2: - do { - asm ("//__percpu_xchg_2\n" - "ldxrh %w[ret], %[ptr]\n" - "stxrh %w[loop], %w[val], %[ptr]\n" - : [loop] "=&r"(loop), [ret] "=&r"(ret), - [ptr] "+Q"(*(u16 *)ptr) - : [val] "r" (val)); - } while (loop); + asm ("//__percpu_xchg_2\n" + "1: ldxrh %w[ret], %[ptr]\n" + " stxrh %w[loop], %w[val], %[ptr]\n" + " cbnz %w[loop], 1b" + : [loop] "=&r"(loop), [ret] "=&r"(ret), + [ptr] "+Q"(*(u16 *)ptr) + : [val] "r" (val)); break; case 4: - do { - asm ("//__percpu_xchg_4\n" - "ldxr %w[ret], %[ptr]\n" - "stxr %w[loop], %w[val], %[ptr]\n" - : [loop] "=&r"(loop), [ret] "=&r"(ret), - [ptr] "+Q"(*(u32 *)ptr) - : [val] "r" (val)); - } while (loop); + asm ("//__percpu_xchg_4\n" + "1: ldxr %w[ret], %[ptr]\n" + " stxr %w[loop], %w[val], %[ptr]\n" + " cbnz %w[loop], 1b" + : [loop] "=&r"(loop), [ret] "=&r"(ret), + [ptr] "+Q"(*(u32 *)ptr) + : [val] "r" (val)); break; case 8: - do { - asm ("//__percpu_xchg_8\n" - "ldxr %[ret], %[ptr]\n" - "stxr %w[loop], %[val], %[ptr]\n" - : [loop] "=&r"(loop), [ret] "=&r"(ret), - [ptr] "+Q"(*(u64 *)ptr) - : [val] "r" (val)); - } while (loop); + asm ("//__percpu_xchg_8\n" + "1: ldxr %[ret], %[ptr]\n" + " stxr %w[loop], %[val], %[ptr]\n" + " cbnz %w[loop], 1b" + : [loop] "=&r"(loop), [ret] "=&r"(ret), + [ptr] "+Q"(*(u64 *)ptr) + : [val] "r" (val)); break; default: BUILD_BUG(); diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index df2e53d3a969..60e34824e18c 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -188,8 +188,8 @@ static inline void spin_lock_prefetch(const void *ptr) #endif -void cpu_enable_pan(void *__unused); -void cpu_enable_uao(void *__unused); -void cpu_enable_cache_maint_trap(void *__unused); +int cpu_enable_pan(void *__unused); +int cpu_enable_uao(void *__unused); +int cpu_enable_cache_maint_trap(void *__unused); #endif /* __ASM_PROCESSOR_H */ diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index e8d46e8e6079..6c80b3699cb8 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -286,7 +286,7 @@ asm( #define write_sysreg_s(v, r) do { \ u64 __val = (u64)v; \ - asm volatile("msr_s " __stringify(r) ", %0" : : "rZ" (__val)); \ + asm volatile("msr_s " __stringify(r) ", %x0" : : "rZ" (__val)); \ } while (0) static inline void config_sctlr_el1(u32 clear, u32 set) diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index bcaf6fba1b65..55d0adbf6509 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -21,6 +21,7 @@ /* * User space memory access functions */ +#include <linux/bitops.h> #include <linux/kasan-checks.h> #include <linux/string.h> #include <linux/thread_info.h> @@ -102,6 +103,13 @@ static inline void set_fs(mm_segment_t fs) flag; \ }) +/* + * When dealing with data aborts or instruction traps we may end up with + * a tagged userland pointer. Clear the tag to get a sane pointer to pass + * on to access_ok(), for instance. + */ +#define untagged_addr(addr) sign_extend64(addr, 55) + #define access_ok(type, addr, size) __range_ok(addr, size) #define user_addr_max get_fs diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c index 42ffdb54e162..b0988bb1bf64 100644 --- a/arch/arm64/kernel/armv8_deprecated.c +++ b/arch/arm64/kernel/armv8_deprecated.c @@ -280,35 +280,43 @@ static void __init register_insn_emulation_sysctl(struct ctl_table *table) /* * Error-checking SWP macros implemented using ldxr{b}/stxr{b} */ -#define __user_swpX_asm(data, addr, res, temp, B) \ + +/* Arbitrary constant to ensure forward-progress of the LL/SC loop */ +#define __SWP_LL_SC_LOOPS 4 + +#define __user_swpX_asm(data, addr, res, temp, temp2, B) \ __asm__ __volatile__( \ + " mov %w3, %w7\n" \ ALTERNATIVE("nop", SET_PSTATE_PAN(0), ARM64_HAS_PAN, \ CONFIG_ARM64_PAN) \ - "0: ldxr"B" %w2, [%3]\n" \ - "1: stxr"B" %w0, %w1, [%3]\n" \ + "0: ldxr"B" %w2, [%4]\n" \ + "1: stxr"B" %w0, %w1, [%4]\n" \ " cbz %w0, 2f\n" \ - " mov %w0, %w4\n" \ + " sub %w3, %w3, #1\n" \ + " cbnz %w3, 0b\n" \ + " mov %w0, %w5\n" \ " b 3f\n" \ "2:\n" \ " mov %w1, %w2\n" \ "3:\n" \ " .pushsection .fixup,\"ax\"\n" \ " .align 2\n" \ - "4: mov %w0, %w5\n" \ + "4: mov %w0, %w6\n" \ " b 3b\n" \ " .popsection" \ _ASM_EXTABLE(0b, 4b) \ _ASM_EXTABLE(1b, 4b) \ ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN, \ CONFIG_ARM64_PAN) \ - : "=&r" (res), "+r" (data), "=&r" (temp) \ - : "r" (addr), "i" (-EAGAIN), "i" (-EFAULT) \ + : "=&r" (res), "+r" (data), "=&r" (temp), "=&r" (temp2) \ + : "r" (addr), "i" (-EAGAIN), "i" (-EFAULT), \ + "i" (__SWP_LL_SC_LOOPS) \ : "memory") -#define __user_swp_asm(data, addr, res, temp) \ - __user_swpX_asm(data, addr, res, temp, "") -#define __user_swpb_asm(data, addr, res, temp) \ - __user_swpX_asm(data, addr, res, temp, "b") +#define __user_swp_asm(data, addr, res, temp, temp2) \ + __user_swpX_asm(data, addr, res, temp, temp2, "") +#define __user_swpb_asm(data, addr, res, temp, temp2) \ + __user_swpX_asm(data, addr, res, temp, temp2, "b") /* * Bit 22 of the instruction encoding distinguishes between @@ -328,12 +336,12 @@ static int emulate_swpX(unsigned int address, unsigned int *data, } while (1) { - unsigned long temp; + unsigned long temp, temp2; if (type == TYPE_SWPB) - __user_swpb_asm(*data, address, res, temp); + __user_swpb_asm(*data, address, res, temp, temp2); else - __user_swp_asm(*data, address, res, temp); + __user_swp_asm(*data, address, res, temp, temp2); if (likely(res != -EAGAIN) || signal_pending(current)) break; diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 0150394f4cab..b75e917aac46 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -39,10 +39,11 @@ has_mismatched_cache_line_size(const struct arm64_cpu_capabilities *entry, (arm64_ftr_reg_ctrel0.sys_val & arm64_ftr_reg_ctrel0.strict_mask); } -static void cpu_enable_trap_ctr_access(void *__unused) +static int cpu_enable_trap_ctr_access(void *__unused) { /* Clear SCTLR_EL1.UCT */ config_sctlr_el1(SCTLR_EL1_UCT, 0); + return 0; } #define MIDR_RANGE(model, min, max) \ diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index d577f263cc4a..c02504ea304b 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -19,7 +19,9 @@ #define pr_fmt(fmt) "CPU features: " fmt #include <linux/bsearch.h> +#include <linux/cpumask.h> #include <linux/sort.h> +#include <linux/stop_machine.h> #include <linux/types.h> #include <asm/cpu.h> #include <asm/cpufeature.h> @@ -941,7 +943,13 @@ void __init enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps) { for (; caps->matches; caps++) if (caps->enable && cpus_have_cap(caps->capability)) - on_each_cpu(caps->enable, NULL, true); + /* + * Use stop_machine() as it schedules the work allowing + * us to modify PSTATE, instead of on_each_cpu() which + * uses an IPI, giving us a PSTATE that disappears when + * we return. + */ + stop_machine(caps->enable, NULL, cpu_online_mask); } /* diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 427f6d3f084c..332e33193ccf 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -586,8 +586,9 @@ CPU_LE( movk x0, #0x30d0, lsl #16 ) // Clear EE and E0E on LE systems b.lt 4f // Skip if no PMU present mrs x0, pmcr_el0 // Disable debug access traps ubfx x0, x0, #11, #5 // to EL2 and allow access to - msr mdcr_el2, x0 // all PMU counters from EL1 4: + csel x0, xzr, x0, lt // all PMU counters from EL1 + msr mdcr_el2, x0 // (if they exist) /* Stage-2 translation */ msr vttbr_el2, xzr diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 27b2f1387df4..01753cd7d3f0 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -49,6 +49,7 @@ #include <asm/alternative.h> #include <asm/compat.h> #include <asm/cacheflush.h> +#include <asm/exec.h> #include <asm/fpsimd.h> #include <asm/mmu_context.h> #include <asm/processor.h> @@ -186,10 +187,19 @@ void __show_regs(struct pt_regs *regs) printk("pc : [<%016llx>] lr : [<%016llx>] pstate: %08llx\n", regs->pc, lr, regs->pstate); printk("sp : %016llx\n", sp); - for (i = top_reg; i >= 0; i--) { + + i = top_reg; + + while (i >= 0) { printk("x%-2d: %016llx ", i, regs->regs[i]); - if (i % 2 == 0) - printk("\n"); + i--; + + if (i % 2 == 0) { + pr_cont("x%-2d: %016llx ", i, regs->regs[i]); + i--; + } + + pr_cont("\n"); } printk("\n"); } @@ -301,7 +311,7 @@ static void tls_thread_switch(struct task_struct *next) } /* Restore the UAO state depending on next's addr_limit */ -static void uao_thread_switch(struct task_struct *next) +void uao_thread_switch(struct task_struct *next) { if (IS_ENABLED(CONFIG_ARM64_UAO)) { if (task_thread_info(next)->addr_limit == KERNEL_DS) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index d3f151cfd4a1..8507703dabe4 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -544,6 +544,7 @@ acpi_map_gic_cpu_interface(struct acpi_madt_generic_interrupt *processor) return; } bootcpu_valid = true; + early_map_cpu_to_node(0, acpi_numa_get_nid(0, hwid)); return; } diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c index ad734142070d..bb0cd787a9d3 100644 --- a/arch/arm64/kernel/suspend.c +++ b/arch/arm64/kernel/suspend.c @@ -1,8 +1,11 @@ #include <linux/ftrace.h> #include <linux/percpu.h> #include <linux/slab.h> +#include <asm/alternative.h> #include <asm/cacheflush.h> +#include <asm/cpufeature.h> #include <asm/debug-monitors.h> +#include <asm/exec.h> #include <asm/pgtable.h> #include <asm/memory.h> #include <asm/mmu_context.h> @@ -50,6 +53,14 @@ void notrace __cpu_suspend_exit(void) set_my_cpu_offset(per_cpu_offset(cpu)); /* + * PSTATE was not saved over suspend/resume, re-enable any detected + * features that might not have been set correctly. + */ + asm(ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN, + CONFIG_ARM64_PAN)); + uao_thread_switch(current); + + /* * Restore HW breakpoint registers to sane values * before debug exceptions are possibly reenabled * through local_dbg_restore. diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 5ff020f8fb7f..c9986b3e0a96 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -428,24 +428,28 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs) force_signal_inject(SIGILL, ILL_ILLOPC, regs, 0); } -void cpu_enable_cache_maint_trap(void *__unused) +int cpu_enable_cache_maint_trap(void *__unused) { config_sctlr_el1(SCTLR_EL1_UCI, 0); + return 0; } #define __user_cache_maint(insn, address, res) \ - asm volatile ( \ - "1: " insn ", %1\n" \ - " mov %w0, #0\n" \ - "2:\n" \ - " .pushsection .fixup,\"ax\"\n" \ - " .align 2\n" \ - "3: mov %w0, %w2\n" \ - " b 2b\n" \ - " .popsection\n" \ - _ASM_EXTABLE(1b, 3b) \ - : "=r" (res) \ - : "r" (address), "i" (-EFAULT) ) + if (untagged_addr(address) >= user_addr_max()) \ + res = -EFAULT; \ + else \ + asm volatile ( \ + "1: " insn ", %1\n" \ + " mov %w0, #0\n" \ + "2:\n" \ + " .pushsection .fixup,\"ax\"\n" \ + " .align 2\n" \ + "3: mov %w0, %w2\n" \ + " b 2b\n" \ + " .popsection\n" \ + _ASM_EXTABLE(1b, 3b) \ + : "=r" (res) \ + : "r" (address), "i" (-EFAULT) ) static void user_cache_maint_handler(unsigned int esr, struct pt_regs *regs) { diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 53d9159662fe..0f8788374815 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -29,7 +29,9 @@ #include <linux/sched.h> #include <linux/highmem.h> #include <linux/perf_event.h> +#include <linux/preempt.h> +#include <asm/bug.h> #include <asm/cpufeature.h> #include <asm/exception.h> #include <asm/debug-monitors.h> @@ -670,9 +672,17 @@ asmlinkage int __exception do_debug_exception(unsigned long addr, NOKPROBE_SYMBOL(do_debug_exception); #ifdef CONFIG_ARM64_PAN -void cpu_enable_pan(void *__unused) +int cpu_enable_pan(void *__unused) { + /* + * We modify PSTATE. This won't work from irq context as the PSTATE + * is discarded once we return from the exception. + */ + WARN_ON_ONCE(in_interrupt()); + config_sctlr_el1(SCTLR_EL1_SPAN, 0); + asm(SET_PSTATE_PAN(1)); + return 0; } #endif /* CONFIG_ARM64_PAN */ @@ -683,8 +693,9 @@ void cpu_enable_pan(void *__unused) * We need to enable the feature at runtime (instead of adding it to * PSR_MODE_EL1h) as the feature may not be implemented by the cpu. */ -void cpu_enable_uao(void *__unused) +int cpu_enable_uao(void *__unused) { asm(SET_PSTATE_UAO(1)); + return 0; } #endif /* CONFIG_ARM64_UAO */ diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 21c489bdeb4e..212c4d1e2f26 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -421,35 +421,35 @@ void __init mem_init(void) pr_notice("Virtual kernel memory layout:\n"); #ifdef CONFIG_KASAN - pr_cont(" kasan : 0x%16lx - 0x%16lx (%6ld GB)\n", + pr_notice(" kasan : 0x%16lx - 0x%16lx (%6ld GB)\n", MLG(KASAN_SHADOW_START, KASAN_SHADOW_END)); #endif - pr_cont(" modules : 0x%16lx - 0x%16lx (%6ld MB)\n", + pr_notice(" modules : 0x%16lx - 0x%16lx (%6ld MB)\n", MLM(MODULES_VADDR, MODULES_END)); - pr_cont(" vmalloc : 0x%16lx - 0x%16lx (%6ld GB)\n", + pr_notice(" vmalloc : 0x%16lx - 0x%16lx (%6ld GB)\n", MLG(VMALLOC_START, VMALLOC_END)); - pr_cont(" .text : 0x%p" " - 0x%p" " (%6ld KB)\n", + pr_notice(" .text : 0x%p" " - 0x%p" " (%6ld KB)\n", MLK_ROUNDUP(_text, _etext)); - pr_cont(" .rodata : 0x%p" " - 0x%p" " (%6ld KB)\n", + pr_notice(" .rodata : 0x%p" " - 0x%p" " (%6ld KB)\n", MLK_ROUNDUP(__start_rodata, __init_begin)); - pr_cont(" .init : 0x%p" " - 0x%p" " (%6ld KB)\n", + pr_notice(" .init : 0x%p" " - 0x%p" " (%6ld KB)\n", MLK_ROUNDUP(__init_begin, __init_end)); - pr_cont(" .data : 0x%p" " - 0x%p" " (%6ld KB)\n", + pr_notice(" .data : 0x%p" " - 0x%p" " (%6ld KB)\n", MLK_ROUNDUP(_sdata, _edata)); - pr_cont(" .bss : 0x%p" " - 0x%p" " (%6ld KB)\n", + pr_notice(" .bss : 0x%p" " - 0x%p" " (%6ld KB)\n", MLK_ROUNDUP(__bss_start, __bss_stop)); - pr_cont(" fixed : 0x%16lx - 0x%16lx (%6ld KB)\n", + pr_notice(" fixed : 0x%16lx - 0x%16lx (%6ld KB)\n", MLK(FIXADDR_START, FIXADDR_TOP)); - pr_cont(" PCI I/O : 0x%16lx - 0x%16lx (%6ld MB)\n", + pr_notice(" PCI I/O : 0x%16lx - 0x%16lx (%6ld MB)\n", MLM(PCI_IO_START, PCI_IO_END)); #ifdef CONFIG_SPARSEMEM_VMEMMAP - pr_cont(" vmemmap : 0x%16lx - 0x%16lx (%6ld GB maximum)\n", + pr_notice(" vmemmap : 0x%16lx - 0x%16lx (%6ld GB maximum)\n", MLG(VMEMMAP_START, VMEMMAP_START + VMEMMAP_SIZE)); - pr_cont(" 0x%16lx - 0x%16lx (%6ld MB actual)\n", + pr_notice(" 0x%16lx - 0x%16lx (%6ld MB actual)\n", MLM((unsigned long)phys_to_page(memblock_start_of_DRAM()), (unsigned long)virt_to_page(high_memory))); #endif - pr_cont(" memory : 0x%16lx - 0x%16lx (%6ld MB)\n", + pr_notice(" memory : 0x%16lx - 0x%16lx (%6ld MB)\n", MLM(__phys_to_virt(memblock_start_of_DRAM()), (unsigned long)high_memory)); diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c index 8b8fe671b1a6..8d79286ee4e8 100644 --- a/arch/blackfin/kernel/ptrace.c +++ b/arch/blackfin/kernel/ptrace.c @@ -271,7 +271,7 @@ long arch_ptrace(struct task_struct *child, long request, case BFIN_MEM_ACCESS_CORE: case BFIN_MEM_ACCESS_CORE_ONLY: copied = access_process_vm(child, addr, &tmp, - to_copy, 0); + to_copy, FOLL_FORCE); if (copied) break; @@ -324,7 +324,8 @@ long arch_ptrace(struct task_struct *child, long request, case BFIN_MEM_ACCESS_CORE: case BFIN_MEM_ACCESS_CORE_ONLY: copied = access_process_vm(child, addr, &data, - to_copy, 1); + to_copy, + FOLL_FORCE | FOLL_WRITE); break; case BFIN_MEM_ACCESS_DMA: if (safe_dma_memcpy(paddr, &data, to_copy)) diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c index b5698c876fcc..099e170a93ee 100644 --- a/arch/cris/arch-v32/drivers/cryptocop.c +++ b/arch/cris/arch-v32/drivers/cryptocop.c @@ -2722,7 +2722,6 @@ static int cryptocop_ioctl_process(struct inode *inode, struct file *filp, unsig err = get_user_pages((unsigned long int)(oper.indata + prev_ix), noinpages, 0, /* read access only for in data */ - 0, /* no force */ inpages, NULL); @@ -2736,8 +2735,7 @@ static int cryptocop_ioctl_process(struct inode *inode, struct file *filp, unsig if (oper.do_cipher){ err = get_user_pages((unsigned long int)oper.cipher_outdata, nooutpages, - 1, /* write access for out data */ - 0, /* no force */ + FOLL_WRITE, /* write access for out data */ outpages, NULL); up_read(¤t->mm->mmap_sem); diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c index f085229cf870..f0df654ac6fc 100644 --- a/arch/cris/arch-v32/kernel/ptrace.c +++ b/arch/cris/arch-v32/kernel/ptrace.c @@ -147,7 +147,7 @@ long arch_ptrace(struct task_struct *child, long request, /* The trampoline page is globally mapped, no page table to traverse.*/ tmp = *(unsigned long*)addr; } else { - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); + copied = access_process_vm(child, addr, &tmp, sizeof(tmp), FOLL_FORCE); if (copied != sizeof(tmp)) break; @@ -279,7 +279,7 @@ static int insn_size(struct task_struct *child, unsigned long pc) int opsize = 0; /* Read the opcode at pc (do what PTRACE_PEEKTEXT would do). */ - copied = access_process_vm(child, pc, &opcode, sizeof(opcode), 0); + copied = access_process_vm(child, pc, &opcode, sizeof(opcode), FOLL_FORCE); if (copied != sizeof(opcode)) return 0; diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c index 09f845793d12..5ed0ea92c5bf 100644 --- a/arch/ia64/kernel/err_inject.c +++ b/arch/ia64/kernel/err_inject.c @@ -142,7 +142,7 @@ store_virtual_to_phys(struct device *dev, struct device_attribute *attr, u64 virt_addr=simple_strtoull(buf, NULL, 16); int ret; - ret = get_user_pages(virt_addr, 1, VM_READ, 0, NULL, NULL); + ret = get_user_pages(virt_addr, 1, FOLL_WRITE, NULL, NULL); if (ret<=0) { #ifdef ERR_INJ_DEBUG printk("Virtual address %lx is not existing.\n",virt_addr); diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 6f54d511cc50..31aa8c0f68e1 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -453,7 +453,7 @@ ia64_peek (struct task_struct *child, struct switch_stack *child_stack, return 0; } } - copied = access_process_vm(child, addr, &ret, sizeof(ret), 0); + copied = access_process_vm(child, addr, &ret, sizeof(ret), FOLL_FORCE); if (copied != sizeof(ret)) return -EIO; *val = ret; @@ -489,7 +489,8 @@ ia64_poke (struct task_struct *child, struct switch_stack *child_stack, *ia64_rse_skip_regs(krbs, regnum) = val; } } - } else if (access_process_vm(child, addr, &val, sizeof(val), 1) + } else if (access_process_vm(child, addr, &val, sizeof(val), + FOLL_FORCE | FOLL_WRITE) != sizeof(val)) return -EIO; return 0; @@ -543,7 +544,8 @@ ia64_sync_user_rbs (struct task_struct *child, struct switch_stack *sw, ret = ia64_peek(child, sw, user_rbs_end, addr, &val); if (ret < 0) return ret; - if (access_process_vm(child, addr, &val, sizeof(val), 1) + if (access_process_vm(child, addr, &val, sizeof(val), + FOLL_FORCE | FOLL_WRITE) != sizeof(val)) return -EIO; } @@ -559,7 +561,8 @@ ia64_sync_kernel_rbs (struct task_struct *child, struct switch_stack *sw, /* now copy word for word from user rbs to kernel rbs: */ for (addr = user_rbs_start; addr < user_rbs_end; addr += 8) { - if (access_process_vm(child, addr, &val, sizeof(val), 0) + if (access_process_vm(child, addr, &val, sizeof(val), + FOLL_FORCE) != sizeof(val)) return -EIO; @@ -1156,7 +1159,8 @@ arch_ptrace (struct task_struct *child, long request, case PTRACE_PEEKTEXT: case PTRACE_PEEKDATA: /* read word at location addr */ - if (access_process_vm(child, addr, &data, sizeof(data), 0) + if (access_process_vm(child, addr, &data, sizeof(data), + FOLL_FORCE) != sizeof(data)) return -EIO; /* ensure return value is not mistaken for error code */ diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c index 51f5e9aa4901..c145605a981f 100644 --- a/arch/m32r/kernel/ptrace.c +++ b/arch/m32r/kernel/ptrace.c @@ -493,7 +493,8 @@ unregister_all_debug_traps(struct task_struct *child) int i; for (i = 0; i < p->nr_trap; i++) - access_process_vm(child, p->addr[i], &p->insn[i], sizeof(p->insn[i]), 1); + access_process_vm(child, p->addr[i], &p->insn[i], sizeof(p->insn[i]), + FOLL_FORCE | FOLL_WRITE); p->nr_trap = 0; } @@ -537,7 +538,8 @@ embed_debug_trap(struct task_struct *child, unsigned long next_pc) unsigned long next_insn, code; unsigned long addr = next_pc & ~3; - if (access_process_vm(child, addr, &next_insn, sizeof(next_insn), 0) + if (access_process_vm(child, addr, &next_insn, sizeof(next_insn), + FOLL_FORCE) != sizeof(next_insn)) { return -1; /* error */ } @@ -546,7 +548,8 @@ embed_debug_trap(struct task_struct *child, unsigned long next_pc) if (register_debug_trap(child, next_pc, next_insn, &code)) { return -1; /* error */ } - if (access_process_vm(child, addr, &code, sizeof(code), 1) + if (access_process_vm(child, addr, &code, sizeof(code), + FOLL_FORCE | FOLL_WRITE) != sizeof(code)) { return -1; /* error */ } @@ -562,7 +565,8 @@ withdraw_debug_trap(struct pt_regs *regs) addr = (regs->bpc - 2) & ~3; regs->bpc -= 2; if (unregister_debug_trap(current, addr, &code)) { - access_process_vm(current, addr, &code, sizeof(code), 1); + access_process_vm(current, addr, &code, sizeof(code), + FOLL_FORCE | FOLL_WRITE); invalidate_cache(); } } @@ -589,7 +593,8 @@ void user_enable_single_step(struct task_struct *child) /* Compute next pc. */ pc = get_stack_long(child, PT_BPC); - if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0) + if (access_process_vm(child, pc&~3, &insn, sizeof(insn), + FOLL_FORCE) != sizeof(insn)) return; diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c index 283b5a1967d1..7e71a4e0281b 100644 --- a/arch/mips/kernel/ptrace32.c +++ b/arch/mips/kernel/ptrace32.c @@ -70,7 +70,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, break; copied = access_process_vm(child, (u64)addrOthers, &tmp, - sizeof(tmp), 0); + sizeof(tmp), FOLL_FORCE); if (copied != sizeof(tmp)) break; ret = put_user(tmp, (u32 __user *) (unsigned long) data); @@ -179,7 +179,8 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, break; ret = 0; if (access_process_vm(child, (u64)addrOthers, &data, - sizeof(data), 1) == sizeof(data)) + sizeof(data), + FOLL_FORCE | FOLL_WRITE) == sizeof(data)) break; ret = -EIO; break; diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index ce961495b5e1..622037d851a3 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -14,6 +14,7 @@ #include <linux/err.h> #include <linux/kdebug.h> #include <linux/module.h> +#include <linux/uaccess.h> #include <linux/vmalloc.h> #include <linux/fs.h> #include <linux/bootmem.h> diff --git a/arch/mips/mm/gup.c b/arch/mips/mm/gup.c index 42d124fb6474..d8c3c159289a 100644 --- a/arch/mips/mm/gup.c +++ b/arch/mips/mm/gup.c @@ -287,7 +287,7 @@ slow_irqon: pages += nr; ret = get_user_pages_unlocked(start, (end - start) >> PAGE_SHIFT, - write, 0, pages); + pages, write ? FOLL_WRITE : 0); /* Have to be a bit careful with return values */ if (nr > 0) { diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c index f7a184b6c35b..57d42d129033 100644 --- a/arch/powerpc/boot/main.c +++ b/arch/powerpc/boot/main.c @@ -32,9 +32,16 @@ static struct addr_range prep_kernel(void) void *addr = 0; struct elf_info ei; long len; + int uncompressed_image = 0; - partial_decompress(vmlinuz_addr, vmlinuz_size, + len = partial_decompress(vmlinuz_addr, vmlinuz_size, elfheader, sizeof(elfheader), 0); + /* assume uncompressed data if -1 is returned */ + if (len == -1) { + uncompressed_image = 1; + memcpy(elfheader, vmlinuz_addr, sizeof(elfheader)); + printf("No valid compressed data found, assume uncompressed data\n\r"); + } if (!parse_elf64(elfheader, &ei) && !parse_elf32(elfheader, &ei)) fatal("Error: not a valid PPC32 or PPC64 ELF file!\n\r"); @@ -67,6 +74,13 @@ static struct addr_range prep_kernel(void) "device tree\n\r"); } + if (uncompressed_image) { + memcpy(addr, vmlinuz_addr + ei.elfoffset, ei.loadsize); + printf("0x%lx bytes of uncompressed data copied\n\r", + ei.loadsize); + goto out; + } + /* Finally, decompress the kernel */ printf("Decompressing (0x%p <- 0x%p:0x%p)...\n\r", addr, vmlinuz_addr, vmlinuz_addr+vmlinuz_size); @@ -82,7 +96,7 @@ static struct addr_range prep_kernel(void) len, ei.loadsize); printf("Done! Decompressed 0x%lx bytes\n\r", len); - +out: flush_cache(addr, ei.loadsize); return (struct addr_range){addr, ei.memsize}; diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index cf12c580f6b2..e8cdfec8d512 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -16,6 +16,10 @@ #define __NR__exit __NR_exit +#define __IGNORE_pkey_mprotect +#define __IGNORE_pkey_alloc +#define __IGNORE_pkey_free + #ifndef __ASSEMBLY__ #include <linux/types.h> diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c index f52b7db327c8..010b7b310237 100644 --- a/arch/powerpc/kernel/ptrace32.c +++ b/arch/powerpc/kernel/ptrace32.c @@ -74,7 +74,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, break; copied = access_process_vm(child, (u64)addrOthers, &tmp, - sizeof(tmp), 0); + sizeof(tmp), FOLL_FORCE); if (copied != sizeof(tmp)) break; ret = put_user(tmp, (u32 __user *)data); @@ -179,7 +179,8 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, break; ret = 0; if (access_process_vm(child, (u64)addrOthers, &tmp, - sizeof(tmp), 1) == sizeof(tmp)) + sizeof(tmp), + FOLL_FORCE | FOLL_WRITE) == sizeof(tmp)) break; ret = -EIO; break; diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c index bb0354222b11..362954f98029 100644 --- a/arch/powerpc/mm/copro_fault.c +++ b/arch/powerpc/mm/copro_fault.c @@ -106,6 +106,8 @@ int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb) switch (REGION_ID(ea)) { case USER_REGION_ID: pr_devel("%s: 0x%llx -- USER_REGION_ID\n", __func__, ea); + if (mm == NULL) + return 1; psize = get_slice_psize(mm, ea); ssize = user_segment_size(ea); vsid = get_vsid(mm->context.id, ea, ssize); diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 75b9cd6150cc..a51c188b81f3 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -845,7 +845,7 @@ void __init dump_numa_cpu_topology(void) return; for_each_online_node(node) { - printk(KERN_DEBUG "Node %d CPUs:", node); + pr_info("Node %d CPUs:", node); count = 0; /* @@ -856,52 +856,18 @@ void __init dump_numa_cpu_topology(void) if (cpumask_test_cpu(cpu, node_to_cpumask_map[node])) { if (count == 0) - printk(" %u", cpu); + pr_cont(" %u", cpu); ++count; } else { if (count > 1) - printk("-%u", cpu - 1); + pr_cont("-%u", cpu - 1); count = 0; } } if (count > 1) - printk("-%u", nr_cpu_ids - 1); - printk("\n"); - } -} - -static void __init dump_numa_memory_topology(void) -{ - unsigned int node; - unsigned int count; - - if (min_common_depth == -1 || !numa_enabled) - return; - - for_each_online_node(node) { - unsigned long i; - - printk(KERN_DEBUG "Node %d Memory:", node); - - count = 0; - - for (i = 0; i < memblock_end_of_DRAM(); - i += (1 << SECTION_SIZE_BITS)) { - if (early_pfn_to_nid(i >> PAGE_SHIFT) == node) { - if (count == 0) - printk(" 0x%lx", i); - ++count; - } else { - if (count > 0) - printk("-0x%lx", i); - count = 0; - } - } - - if (count > 0) - printk("-0x%lx", i); - printk("\n"); + pr_cont("-%u", nr_cpu_ids - 1); + pr_cont("\n"); } } @@ -947,8 +913,6 @@ void __init initmem_init(void) if (parse_numa_properties()) setup_nonnuma(); - else - dump_numa_memory_topology(); memblock_dump_all(); diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index 1cab8a177d0e..7a27eebab28a 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -119,8 +119,13 @@ static int handle_validity(struct kvm_vcpu *vcpu) vcpu->stat.exit_validity++; trace_kvm_s390_intercept_validity(vcpu, viwhy); - WARN_ONCE(true, "kvm: unhandled validity intercept 0x%x\n", viwhy); - return -EOPNOTSUPP; + KVM_EVENT(3, "validity intercept 0x%x for pid %u (kvm 0x%pK)", viwhy, + current->pid, vcpu->kvm); + + /* do not warn on invalid runtime instrumentation mode */ + WARN_ONCE(viwhy != 0x44, "kvm: unhandled validity intercept 0x%x\n", + viwhy); + return -EINVAL; } static int handle_instruction(struct kvm_vcpu *vcpu) diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c index adb0c34bf431..18d4107e10ee 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -266,7 +266,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, /* Try to get the remaining pages with get_user_pages */ start += nr << PAGE_SHIFT; pages += nr; - ret = get_user_pages_unlocked(start, nr_pages - nr, write, 0, pages); + ret = get_user_pages_unlocked(start, nr_pages - nr, pages, + write ? FOLL_WRITE : 0); /* Have to be a bit careful with return values */ if (nr > 0) ret = (ret < 0) ? nr : ret + nr; diff --git a/arch/score/kernel/ptrace.c b/arch/score/kernel/ptrace.c index 55836188b217..4f7314d5f334 100644 --- a/arch/score/kernel/ptrace.c +++ b/arch/score/kernel/ptrace.c @@ -131,7 +131,7 @@ read_tsk_long(struct task_struct *child, { int copied; - copied = access_process_vm(child, addr, res, sizeof(*res), 0); + copied = access_process_vm(child, addr, res, sizeof(*res), FOLL_FORCE); return copied != sizeof(*res) ? -EIO : 0; } @@ -142,7 +142,7 @@ read_tsk_short(struct task_struct *child, { int copied; - copied = access_process_vm(child, addr, res, sizeof(*res), 0); + copied = access_process_vm(child, addr, res, sizeof(*res), FOLL_FORCE); return copied != sizeof(*res) ? -EIO : 0; } @@ -153,7 +153,8 @@ write_tsk_short(struct task_struct *child, { int copied; - copied = access_process_vm(child, addr, &val, sizeof(val), 1); + copied = access_process_vm(child, addr, &val, sizeof(val), + FOLL_FORCE | FOLL_WRITE); return copied != sizeof(val) ? -EIO : 0; } @@ -164,7 +165,8 @@ write_tsk_long(struct task_struct *child, { int copied; - copied = access_process_vm(child, addr, &val, sizeof(val), 1); + copied = access_process_vm(child, addr, &val, sizeof(val), + FOLL_FORCE | FOLL_WRITE); return copied != sizeof(val) ? -EIO : 0; } diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 00476662ac2c..336f33a419d9 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -31,7 +31,7 @@ isa-y := $(isa-y)-up endif cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,) -cflags-$(CONFIG_CPU_J2) := $(call cc-option,-mj2,) +cflags-$(CONFIG_CPU_J2) += $(call cc-option,-mj2,) cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \ $(call cc-option,-m2a-nofpu,) \ $(call cc-option,-m4-nofpu,) diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig index e9c2c42031fe..4e21949593cf 100644 --- a/arch/sh/boards/Kconfig +++ b/arch/sh/boards/Kconfig @@ -22,6 +22,16 @@ config SH_DEVICE_TREE have sufficient driver coverage to use this option; do not select it if you are using original SuperH hardware. +config SH_JCORE_SOC + bool "J-Core SoC" + depends on SH_DEVICE_TREE && (CPU_SH2 || CPU_J2) + select CLKSRC_JCORE_PIT + select JCORE_AIC + default y if CPU_J2 + help + Select this option to include drivers core components of the + J-Core SoC, including interrupt controllers and timers. + config SH_SOLUTION_ENGINE bool "SolutionEngine" select SOLUTION_ENGINE diff --git a/arch/sh/configs/j2_defconfig b/arch/sh/configs/j2_defconfig index 94d1eca52f72..2eb81ebe3888 100644 --- a/arch/sh/configs/j2_defconfig +++ b/arch/sh/configs/j2_defconfig @@ -8,6 +8,7 @@ CONFIG_MEMORY_START=0x10000000 CONFIG_MEMORY_SIZE=0x04000000 CONFIG_CPU_BIG_ENDIAN=y CONFIG_SH_DEVICE_TREE=y +CONFIG_SH_JCORE_SOC=y CONFIG_HZ_100=y CONFIG_CMDLINE_OVERWRITE=y CONFIG_CMDLINE="console=ttyUL0 earlycon" @@ -20,6 +21,7 @@ CONFIG_INET=y CONFIG_DEVTMPFS=y CONFIG_DEVTMPFS_MOUNT=y CONFIG_NETDEVICES=y +CONFIG_SERIAL_EARLYCON=y CONFIG_SERIAL_UARTLITE=y CONFIG_SERIAL_UARTLITE_CONSOLE=y CONFIG_I2C=y diff --git a/arch/sh/mm/gup.c b/arch/sh/mm/gup.c index 40fa6c8adc43..063c298ba56c 100644 --- a/arch/sh/mm/gup.c +++ b/arch/sh/mm/gup.c @@ -258,7 +258,8 @@ slow_irqon: pages += nr; ret = get_user_pages_unlocked(start, - (end - start) >> PAGE_SHIFT, write, 0, pages); + (end - start) >> PAGE_SHIFT, pages, + write ? FOLL_WRITE : 0); /* Have to be a bit careful with return values */ if (nr > 0) { diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c index 9ddc4928a089..ac082dd8c67d 100644 --- a/arch/sparc/kernel/ptrace_64.c +++ b/arch/sparc/kernel/ptrace_64.c @@ -127,7 +127,8 @@ static int get_from_target(struct task_struct *target, unsigned long uaddr, if (copy_from_user(kbuf, (void __user *) uaddr, len)) return -EFAULT; } else { - int len2 = access_process_vm(target, uaddr, kbuf, len, 0); + int len2 = access_process_vm(target, uaddr, kbuf, len, + FOLL_FORCE); if (len2 != len) return -EFAULT; } @@ -141,7 +142,8 @@ static int set_to_target(struct task_struct *target, unsigned long uaddr, if (copy_to_user((void __user *) uaddr, kbuf, len)) return -EFAULT; } else { - int len2 = access_process_vm(target, uaddr, kbuf, len, 1); + int len2 = access_process_vm(target, uaddr, kbuf, len, + FOLL_FORCE | FOLL_WRITE); if (len2 != len) return -EFAULT; } @@ -505,7 +507,8 @@ static int genregs32_get(struct task_struct *target, if (access_process_vm(target, (unsigned long) ®_window[pos], - k, sizeof(*k), 0) + k, sizeof(*k), + FOLL_FORCE) != sizeof(*k)) return -EFAULT; k++; @@ -531,12 +534,14 @@ static int genregs32_get(struct task_struct *target, if (access_process_vm(target, (unsigned long) ®_window[pos], - ®, sizeof(reg), 0) + ®, sizeof(reg), + FOLL_FORCE) != sizeof(reg)) return -EFAULT; if (access_process_vm(target, (unsigned long) u, - ®, sizeof(reg), 1) + ®, sizeof(reg), + FOLL_FORCE | FOLL_WRITE) != sizeof(reg)) return -EFAULT; pos++; @@ -615,7 +620,8 @@ static int genregs32_set(struct task_struct *target, (unsigned long) ®_window[pos], (void *) k, - sizeof(*k), 1) + sizeof(*k), + FOLL_FORCE | FOLL_WRITE) != sizeof(*k)) return -EFAULT; k++; @@ -642,13 +648,15 @@ static int genregs32_set(struct task_struct *target, if (access_process_vm(target, (unsigned long) u, - ®, sizeof(reg), 0) + ®, sizeof(reg), + FOLL_FORCE) != sizeof(reg)) return -EFAULT; if (access_process_vm(target, (unsigned long) ®_window[pos], - ®, sizeof(reg), 1) + ®, sizeof(reg), + FOLL_FORCE | FOLL_WRITE) != sizeof(reg)) return -EFAULT; pos++; diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c index 4e06750a5d29..cd0e32bbcb1d 100644 --- a/arch/sparc/mm/gup.c +++ b/arch/sparc/mm/gup.c @@ -238,7 +238,8 @@ slow: pages += nr; ret = get_user_pages_unlocked(start, - (end - start) >> PAGE_SHIFT, write, 0, pages); + (end - start) >> PAGE_SHIFT, pages, + write ? FOLL_WRITE : 0); /* Have to be a bit careful with return values */ if (nr > 0) { diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 1188bc849ee3..a39629206864 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -194,6 +194,8 @@ #define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */ #define X86_FEATURE_INTEL_PT ( 7*32+15) /* Intel Processor Trace */ +#define X86_FEATURE_AVX512_4VNNIW (7*32+16) /* AVX-512 Neural Network Instructions */ +#define X86_FEATURE_AVX512_4FMAPS (7*32+17) /* AVX-512 Multiply Accumulation Single precision */ /* Virtualization flags: Linux defined, word 8 */ #define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */ diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 2aaca53c0974..ad6f5eb07a95 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -52,6 +52,15 @@ struct task_struct; #include <asm/cpufeature.h> #include <linux/atomic.h> +struct thread_info { + unsigned long flags; /* low level flags */ +}; + +#define INIT_THREAD_INFO(tsk) \ +{ \ + .flags = 0, \ +} + #define init_stack (init_thread_union.stack) #else /* !__ASSEMBLY__ */ diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c index 8cb57df9398d..1db8dc490b66 100644 --- a/arch/x86/kernel/cpu/scattered.c +++ b/arch/x86/kernel/cpu/scattered.c @@ -32,6 +32,8 @@ void init_scattered_cpuid_features(struct cpuinfo_x86 *c) static const struct cpuid_bit cpuid_bits[] = { { X86_FEATURE_INTEL_PT, CR_EBX,25, 0x00000007, 0 }, + { X86_FEATURE_AVX512_4VNNIW, CR_EDX, 2, 0x00000007, 0 }, + { X86_FEATURE_AVX512_4FMAPS, CR_EDX, 3, 0x00000007, 0 }, { X86_FEATURE_APERFMPERF, CR_ECX, 0, 0x00000006, 0 }, { X86_FEATURE_EPB, CR_ECX, 3, 0x00000006, 0 }, { X86_FEATURE_HW_PSTATE, CR_EDX, 7, 0x80000007, 0 }, diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c index 81160578b91a..5130985b758b 100644 --- a/arch/x86/kernel/cpu/vmware.c +++ b/arch/x86/kernel/cpu/vmware.c @@ -27,6 +27,7 @@ #include <asm/div64.h> #include <asm/x86_init.h> #include <asm/hypervisor.h> +#include <asm/timer.h> #include <asm/apic.h> #define CPUID_VMWARE_INFO_LEAF 0x40000000 @@ -94,6 +95,10 @@ static void __init vmware_platform_setup(void) } else { pr_warn("Failed to get TSC freq from the hypervisor\n"); } + +#ifdef CONFIG_X86_IO_APIC + no_timer_check = 1; +#endif } /* diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 124aa5c593f8..095ef7ddd6ae 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -74,6 +74,8 @@ void fpu__xstate_clear_all_cpu_caps(void) setup_clear_cpu_cap(X86_FEATURE_MPX); setup_clear_cpu_cap(X86_FEATURE_XGETBV1); setup_clear_cpu_cap(X86_FEATURE_PKU); + setup_clear_cpu_cap(X86_FEATURE_AVX512_4VNNIW); + setup_clear_cpu_cap(X86_FEATURE_AVX512_4FMAPS); } /* diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c index 40df33753bae..ec1f756f9dc9 100644 --- a/arch/x86/kernel/signal_compat.c +++ b/arch/x86/kernel/signal_compat.c @@ -105,9 +105,6 @@ void sigaction_compat_abi(struct k_sigaction *act, struct k_sigaction *oact) /* Don't let flags to be set from userspace */ act->sa.sa_flags &= ~(SA_IA32_ABI | SA_X32_ABI); - if (user_64bit_mode(current_pt_regs())) - return; - if (in_ia32_syscall()) act->sa.sa_flags |= SA_IA32_ABI; if (in_x32_syscall()) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 951f093a96fe..42f5eb7b4f6c 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1409,15 +1409,17 @@ __init void prefill_possible_map(void) /* No boot processor was found in mptable or ACPI MADT */ if (!num_processors) { - int apicid = boot_cpu_physical_apicid; - int cpu = hard_smp_processor_id(); + if (boot_cpu_has(X86_FEATURE_APIC)) { + int apicid = boot_cpu_physical_apicid; + int cpu = hard_smp_processor_id(); - pr_warn("Boot CPU (id %d) not listed by BIOS\n", cpu); + pr_warn("Boot CPU (id %d) not listed by BIOS\n", cpu); - /* Make sure boot cpu is enumerated */ - if (apic->cpu_present_to_apicid(0) == BAD_APICID && - apic->apic_id_valid(apicid)) - generic_processor_info(apicid, boot_cpu_apic_version); + /* Make sure boot cpu is enumerated */ + if (apic->cpu_present_to_apicid(0) == BAD_APICID && + apic->apic_id_valid(apicid)) + generic_processor_info(apicid, boot_cpu_apic_version); + } if (!num_processors) num_processors = 1; diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c index c9a073866ca7..a23ce84a3f6c 100644 --- a/arch/x86/kernel/step.c +++ b/arch/x86/kernel/step.c @@ -57,7 +57,8 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs) unsigned char opcode[15]; unsigned long addr = convert_ip_to_linear(child, regs); - copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0); + copied = access_process_vm(child, addr, opcode, sizeof(opcode), + FOLL_FORCE); for (i = 0; i < copied; i++) { switch (opcode[i]) { /* popf and iret */ diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c index c7220ba94aa7..1a22de70f7f7 100644 --- a/arch/x86/kvm/ioapic.c +++ b/arch/x86/kvm/ioapic.c @@ -594,7 +594,7 @@ static void kvm_ioapic_reset(struct kvm_ioapic *ioapic) ioapic->irr = 0; ioapic->irr_delivered = 0; ioapic->id = 0; - memset(ioapic->irq_eoi, 0x00, IOAPIC_NUM_PINS); + memset(ioapic->irq_eoi, 0x00, sizeof(ioapic->irq_eoi)); rtc_irq_eoi_tracking_reset(ioapic); } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 6c633de84dd7..e375235d81c9 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5733,13 +5733,13 @@ static int kvmclock_cpu_online(unsigned int cpu) static void kvm_timer_init(void) { - int cpu; - max_tsc_khz = tsc_khz; if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) { #ifdef CONFIG_CPU_FREQ struct cpufreq_policy policy; + int cpu; + memset(&policy, 0, sizeof(policy)); cpu = get_cpu(); cpufreq_get_policy(&policy, cpu); diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c index b8b6a60b32cf..0d4fb3ebbbac 100644 --- a/arch/x86/mm/gup.c +++ b/arch/x86/mm/gup.c @@ -435,7 +435,7 @@ slow_irqon: ret = get_user_pages_unlocked(start, (end - start) >> PAGE_SHIFT, - write, 0, pages); + pages, write ? FOLL_WRITE : 0); /* Have to be a bit careful with return values */ if (nr > 0) { diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c index 80476878eb4c..e4f800999b32 100644 --- a/arch/x86/mm/mpx.c +++ b/arch/x86/mm/mpx.c @@ -544,10 +544,9 @@ static int mpx_resolve_fault(long __user *addr, int write) { long gup_ret; int nr_pages = 1; - int force = 0; - gup_ret = get_user_pages((unsigned long)addr, nr_pages, write, - force, NULL, NULL); + gup_ret = get_user_pages((unsigned long)addr, nr_pages, + write ? FOLL_WRITE : 0, NULL, NULL); /* * get_user_pages() returns number of pages gotten. * 0 means we failed to fault in and get anything, diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c index b4d5e95fe4df..4a6a5a26c582 100644 --- a/arch/x86/platform/uv/bios_uv.c +++ b/arch/x86/platform/uv/bios_uv.c @@ -40,7 +40,15 @@ s64 uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, u64 a4, u64 a5) */ return BIOS_STATUS_UNIMPLEMENTED; - ret = efi_call_virt_pointer(tab, function, (u64)which, a1, a2, a3, a4, a5); + /* + * If EFI_OLD_MEMMAP is set, we need to fall back to using our old EFI + * callback method, which uses efi_call() directly, with the kernel page tables: + */ + if (unlikely(test_bit(EFI_OLD_MEMMAP, &efi.flags))) + ret = efi_call((void *)__va(tab->function), (u64)which, a1, a2, a3, a4, a5); + else + ret = efi_call_virt_pointer(tab, function, (u64)which, a1, a2, a3, a4, a5); + return ret; } EXPORT_SYMBOL_GPL(uv_bios_call); diff --git a/arch/x86/um/ptrace_32.c b/arch/x86/um/ptrace_32.c index 5766ead6fdb9..60a5a5a85505 100644 --- a/arch/x86/um/ptrace_32.c +++ b/arch/x86/um/ptrace_32.c @@ -36,7 +36,8 @@ int is_syscall(unsigned long addr) * slow, but that doesn't matter, since it will be called only * in case of singlestepping, if copy_from_user failed. */ - n = access_process_vm(current, addr, &instr, sizeof(instr), 0); + n = access_process_vm(current, addr, &instr, sizeof(instr), + FOLL_FORCE); if (n != sizeof(instr)) { printk(KERN_ERR "is_syscall : failed to read " "instruction from 0x%lx\n", addr); diff --git a/arch/x86/um/ptrace_64.c b/arch/x86/um/ptrace_64.c index 0b5c184dd5b3..e30202b1716e 100644 --- a/arch/x86/um/ptrace_64.c +++ b/arch/x86/um/ptrace_64.c @@ -212,7 +212,8 @@ int is_syscall(unsigned long addr) * slow, but that doesn't matter, since it will be called only * in case of singlestepping, if copy_from_user failed. */ - n = access_process_vm(current, addr, &instr, sizeof(instr), 0); + n = access_process_vm(current, addr, &instr, sizeof(instr), + FOLL_FORCE); if (n != sizeof(instr)) { printk("is_syscall : failed to read instruction from " "0x%lx\n", addr); diff --git a/block/badblocks.c b/block/badblocks.c index 7be53cb1cc3c..6610e282a03e 100644 --- a/block/badblocks.c +++ b/block/badblocks.c @@ -354,7 +354,8 @@ int badblocks_clear(struct badblocks *bb, sector_t s, int sectors) * current range. Earlier ranges could also overlap, * but only this one can overlap the end of the range. */ - if (BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > target) { + if ((BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > target) && + (BB_OFFSET(p[lo]) < target)) { /* Partial overlap, leave the tail of this range */ int ack = BB_ACK(p[lo]); sector_t a = BB_OFFSET(p[lo]); @@ -377,7 +378,8 @@ int badblocks_clear(struct badblocks *bb, sector_t s, int sectors) lo--; } while (lo >= 0 && - BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > s) { + (BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > s) && + (BB_OFFSET(p[lo]) < target)) { /* This range does overlap */ if (BB_OFFSET(p[lo]) < s) { /* Keep the early parts of this range. */ diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index abb71628ab61..7b274ff4632c 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -415,15 +415,15 @@ struct rbd_device { }; /* - * Flag bits for rbd_dev->flags. If atomicity is required, - * rbd_dev->lock is used to protect access. - * - * Currently, only the "removing" flag (which is coupled with the - * "open_count" field) requires atomic access. + * Flag bits for rbd_dev->flags: + * - REMOVING (which is coupled with rbd_dev->open_count) is protected + * by rbd_dev->lock + * - BLACKLISTED is protected by rbd_dev->lock_rwsem */ enum rbd_dev_flags { RBD_DEV_FLAG_EXISTS, /* mapped snapshot has not been deleted */ RBD_DEV_FLAG_REMOVING, /* this mapping is being removed */ + RBD_DEV_FLAG_BLACKLISTED, /* our ceph_client is blacklisted */ }; static DEFINE_MUTEX(client_mutex); /* Serialize client creation */ @@ -3926,6 +3926,7 @@ static void rbd_reregister_watch(struct work_struct *work) struct rbd_device *rbd_dev = container_of(to_delayed_work(work), struct rbd_device, watch_dwork); bool was_lock_owner = false; + bool need_to_wake = false; int ret; dout("%s rbd_dev %p\n", __func__, rbd_dev); @@ -3935,19 +3936,27 @@ static void rbd_reregister_watch(struct work_struct *work) was_lock_owner = rbd_release_lock(rbd_dev); mutex_lock(&rbd_dev->watch_mutex); - if (rbd_dev->watch_state != RBD_WATCH_STATE_ERROR) - goto fail_unlock; + if (rbd_dev->watch_state != RBD_WATCH_STATE_ERROR) { + mutex_unlock(&rbd_dev->watch_mutex); + goto out; + } ret = __rbd_register_watch(rbd_dev); if (ret) { rbd_warn(rbd_dev, "failed to reregister watch: %d", ret); - if (ret != -EBLACKLISTED) + if (ret == -EBLACKLISTED || ret == -ENOENT) { + set_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags); + need_to_wake = true; + } else { queue_delayed_work(rbd_dev->task_wq, &rbd_dev->watch_dwork, RBD_RETRY_DELAY); - goto fail_unlock; + } + mutex_unlock(&rbd_dev->watch_mutex); + goto out; } + need_to_wake = true; rbd_dev->watch_state = RBD_WATCH_STATE_REGISTERED; rbd_dev->watch_cookie = rbd_dev->watch_handle->linger_id; mutex_unlock(&rbd_dev->watch_mutex); @@ -3963,13 +3972,10 @@ static void rbd_reregister_watch(struct work_struct *work) ret); } +out: up_write(&rbd_dev->lock_rwsem); - wake_requests(rbd_dev, true); - return; - -fail_unlock: - mutex_unlock(&rbd_dev->watch_mutex); - up_write(&rbd_dev->lock_rwsem); + if (need_to_wake) + wake_requests(rbd_dev, true); } /* @@ -4074,7 +4080,9 @@ static void rbd_wait_state_locked(struct rbd_device *rbd_dev) up_read(&rbd_dev->lock_rwsem); schedule(); down_read(&rbd_dev->lock_rwsem); - } while (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED); + } while (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED && + !test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags)); + finish_wait(&rbd_dev->lock_waitq, &wait); } @@ -4166,8 +4174,16 @@ static void rbd_queue_workfn(struct work_struct *work) if (must_be_locked) { down_read(&rbd_dev->lock_rwsem); - if (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED) + if (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED && + !test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags)) rbd_wait_state_locked(rbd_dev); + + WARN_ON((rbd_dev->lock_state == RBD_LOCK_STATE_LOCKED) ^ + !test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags)); + if (test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags)) { + result = -EBLACKLISTED; + goto err_unlock; + } } img_request = rbd_img_request_create(rbd_dev, offset, length, op_type, diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile index c06945160a41..5e23e2d305e7 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -11,7 +11,7 @@ cflags-$(CONFIG_X86) += -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 \ -mno-mmx -mno-sse cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS)) -cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \ +cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) -g0 \ -fno-builtin -fpic -mno-single-pic-base cflags-$(CONFIG_EFI_ARMSTUB) += -I$(srctree)/scripts/dtc/libfdt @@ -79,5 +79,6 @@ quiet_cmd_stubcopy = STUBCPY $@ # decompressor. So move our .data to .data.efistub, which is preserved # explicitly by the decompressor linker script. # -STUBCOPY_FLAGS-$(CONFIG_ARM) += --rename-section .data=.data.efistub +STUBCOPY_FLAGS-$(CONFIG_ARM) += --rename-section .data=.data.efistub \ + -R ___ksymtab+sort -R ___kcrctab+sort STUBCOPY_RELOC-$(CONFIG_ARM) := R_ARM_ABS diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 887483b8b818..dcaf691f56b5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -555,10 +555,13 @@ struct amdgpu_ttm_tt { int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages) { struct amdgpu_ttm_tt *gtt = (void *)ttm; - int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY); + unsigned int flags = 0; unsigned pinned = 0; int r; + if (!(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY)) + flags |= FOLL_WRITE; + if (gtt->userflags & AMDGPU_GEM_USERPTR_ANONONLY) { /* check that we only use anonymous memory to prevent problems with writeback */ @@ -581,7 +584,7 @@ int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages) list_add(&guptask.list, >t->guptasks); spin_unlock(>t->guptasklock); - r = get_user_pages(userptr, num_pages, write, 0, p, NULL); + r = get_user_pages(userptr, num_pages, flags, p, NULL); spin_lock(>t->guptasklock); list_del(&guptask.list); diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c index 2f58e9e2a59c..a51f8cbcfe26 100644 --- a/drivers/gpu/drm/armada/armada_crtc.c +++ b/drivers/gpu/drm/armada/armada_crtc.c @@ -332,17 +332,19 @@ static void armada_drm_crtc_dpms(struct drm_crtc *crtc, int dpms) { struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc); - if (dcrtc->dpms != dpms) { - dcrtc->dpms = dpms; - if (!IS_ERR(dcrtc->clk) && !dpms_blanked(dpms)) - WARN_ON(clk_prepare_enable(dcrtc->clk)); - armada_drm_crtc_update(dcrtc); - if (!IS_ERR(dcrtc->clk) && dpms_blanked(dpms)) - clk_disable_unprepare(dcrtc->clk); + if (dpms_blanked(dcrtc->dpms) != dpms_blanked(dpms)) { if (dpms_blanked(dpms)) armada_drm_vblank_off(dcrtc); - else + else if (!IS_ERR(dcrtc->clk)) + WARN_ON(clk_prepare_enable(dcrtc->clk)); + dcrtc->dpms = dpms; + armada_drm_crtc_update(dcrtc); + if (!dpms_blanked(dpms)) drm_crtc_vblank_on(&dcrtc->crtc); + else if (!IS_ERR(dcrtc->clk)) + clk_disable_unprepare(dcrtc->clk); + } else if (dcrtc->dpms != dpms) { + dcrtc->dpms = dpms; } } diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c index cb86c7e5495c..d9230132dfbc 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c @@ -329,20 +329,34 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, /* * Append a LINK to the submitted command buffer to return to * the ring buffer. return_target is the ring target address. - * We need three dwords: event, wait, link. + * We need at most 7 dwords in the return target: 2 cache flush + + * 2 semaphore stall + 1 event + 1 wait + 1 link. */ - return_dwords = 3; + return_dwords = 7; return_target = etnaviv_buffer_reserve(gpu, buffer, return_dwords); CMD_LINK(cmdbuf, return_dwords, return_target); /* - * Append event, wait and link pointing back to the wait - * command to the ring buffer. + * Append a cache flush, stall, event, wait and link pointing back to + * the wait command to the ring buffer. */ + if (gpu->exec_state == ETNA_PIPE_2D) { + CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE, + VIVS_GL_FLUSH_CACHE_PE2D); + } else { + CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE, + VIVS_GL_FLUSH_CACHE_DEPTH | + VIVS_GL_FLUSH_CACHE_COLOR); + CMD_LOAD_STATE(buffer, VIVS_TS_FLUSH_CACHE, + VIVS_TS_FLUSH_CACHE_FLUSH); + } + CMD_SEM(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE); + CMD_STALL(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE); CMD_LOAD_STATE(buffer, VIVS_GL_EVENT, VIVS_GL_EVENT_EVENT_ID(event) | VIVS_GL_EVENT_FROM_PE); CMD_WAIT(buffer); - CMD_LINK(buffer, 2, return_target + 8); + CMD_LINK(buffer, 2, etnaviv_iommu_get_cmdbuf_va(gpu, buffer) + + buffer->user_size - 4); if (drm_debug & DRM_UT_DRIVER) pr_info("stream link to 0x%08x @ 0x%08x %p\n", diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c index 5ce3603e6eac..0370b842d9cc 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c @@ -748,19 +748,22 @@ static struct page **etnaviv_gem_userptr_do_get_pages( int ret = 0, pinned, npages = etnaviv_obj->base.size >> PAGE_SHIFT; struct page **pvec; uintptr_t ptr; + unsigned int flags = 0; pvec = drm_malloc_ab(npages, sizeof(struct page *)); if (!pvec) return ERR_PTR(-ENOMEM); + if (!etnaviv_obj->userptr.ro) + flags |= FOLL_WRITE; + pinned = 0; ptr = etnaviv_obj->userptr.ptr; down_read(&mm->mmap_sem); while (pinned < npages) { ret = get_user_pages_remote(task, mm, ptr, npages - pinned, - !etnaviv_obj->userptr.ro, 0, - pvec + pinned, NULL); + flags, pvec + pinned, NULL); if (ret < 0) break; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c index d3796ed8d8c5..169ac96e8f08 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c @@ -330,7 +330,8 @@ u32 etnaviv_iommu_get_cmdbuf_va(struct etnaviv_gpu *gpu, return (u32)buf->vram_node.start; mutex_lock(&mmu->lock); - ret = etnaviv_iommu_find_iova(mmu, &buf->vram_node, buf->size); + ret = etnaviv_iommu_find_iova(mmu, &buf->vram_node, + buf->size + SZ_64K); if (ret < 0) { mutex_unlock(&mmu->lock); return 0; diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index aa92decf4233..fbd13fabdf2d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -488,7 +488,8 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, goto err_free; } - ret = get_vaddr_frames(start, npages, true, true, g2d_userptr->vec); + ret = get_vaddr_frames(start, npages, FOLL_FORCE | FOLL_WRITE, + g2d_userptr->vec); if (ret != npages) { DRM_ERROR("failed to get user pages from userptr.\n"); if (ret < 0) diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c index 3371635cd4d7..b2d5e188b1b8 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c @@ -51,6 +51,7 @@ static void fsl_dcu_drm_disable_crtc(struct drm_crtc *crtc) DCU_MODE_DCU_MODE(DCU_MODE_OFF)); regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, DCU_UPDATE_MODE_READREG); + clk_disable_unprepare(fsl_dev->pix_clk); } static void fsl_dcu_drm_crtc_enable(struct drm_crtc *crtc) @@ -58,6 +59,7 @@ static void fsl_dcu_drm_crtc_enable(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; + clk_prepare_enable(fsl_dev->pix_clk); regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, DCU_MODE_DCU_MODE_MASK, DCU_MODE_DCU_MODE(DCU_MODE_NORMAL)); @@ -116,8 +118,6 @@ static void fsl_dcu_drm_crtc_mode_set_nofb(struct drm_crtc *crtc) DCU_THRESHOLD_LS_BF_VS(BF_VS_VAL) | DCU_THRESHOLD_OUT_BUF_HIGH(BUF_MAX_VAL) | DCU_THRESHOLD_OUT_BUF_LOW(BUF_MIN_VAL)); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); return; } diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c index 0884c45aefe8..e04efbed1a54 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c @@ -267,12 +267,8 @@ static int fsl_dcu_drm_pm_resume(struct device *dev) return ret; } - ret = clk_prepare_enable(fsl_dev->pix_clk); - if (ret < 0) { - dev_err(dev, "failed to enable pix clk\n"); - goto disable_dcu_clk; - } - + if (fsl_dev->tcon) + fsl_tcon_bypass_enable(fsl_dev->tcon); fsl_dcu_drm_init_planes(fsl_dev->drm); drm_atomic_helper_resume(fsl_dev->drm, fsl_dev->state); @@ -284,10 +280,6 @@ static int fsl_dcu_drm_pm_resume(struct device *dev) enable_irq(fsl_dev->irq); return 0; - -disable_dcu_clk: - clk_disable_unprepare(fsl_dev->clk); - return ret; } #endif @@ -401,18 +393,12 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) goto disable_clk; } - ret = clk_prepare_enable(fsl_dev->pix_clk); - if (ret < 0) { - dev_err(dev, "failed to enable pix clk\n"); - goto unregister_pix_clk; - } - fsl_dev->tcon = fsl_tcon_init(dev); drm = drm_dev_alloc(driver, dev); if (IS_ERR(drm)) { ret = PTR_ERR(drm); - goto disable_pix_clk; + goto unregister_pix_clk; } fsl_dev->dev = dev; @@ -433,8 +419,6 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) unref: drm_dev_unref(drm); -disable_pix_clk: - clk_disable_unprepare(fsl_dev->pix_clk); unregister_pix_clk: clk_unregister(fsl_dev->pix_clk); disable_clk: @@ -447,7 +431,6 @@ static int fsl_dcu_drm_remove(struct platform_device *pdev) struct fsl_dcu_drm_device *fsl_dev = platform_get_drvdata(pdev); clk_disable_unprepare(fsl_dev->clk); - clk_disable_unprepare(fsl_dev->pix_clk); clk_unregister(fsl_dev->pix_clk); drm_put_dev(fsl_dev->drm); diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c index a7e5486bd1e9..9e6f7d8112b3 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c @@ -211,11 +211,6 @@ void fsl_dcu_drm_init_planes(struct drm_device *dev) for (j = 1; j <= fsl_dev->soc->layer_regs; j++) regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(i, j), 0); } - regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, - DCU_MODE_DCU_MODE_MASK, - DCU_MODE_DCU_MODE(DCU_MODE_OFF)); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); } struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device *dev) diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c index 26edcc899712..e1dd75b18118 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c @@ -20,38 +20,6 @@ #include "fsl_dcu_drm_drv.h" #include "fsl_tcon.h" -static int -fsl_dcu_drm_encoder_atomic_check(struct drm_encoder *encoder, - struct drm_crtc_state *crtc_state, - struct drm_connector_state *conn_state) -{ - return 0; -} - -static void fsl_dcu_drm_encoder_disable(struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; - - if (fsl_dev->tcon) - fsl_tcon_bypass_disable(fsl_dev->tcon); -} - -static void fsl_dcu_drm_encoder_enable(struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; - - if (fsl_dev->tcon) - fsl_tcon_bypass_enable(fsl_dev->tcon); -} - -static const struct drm_encoder_helper_funcs encoder_helper_funcs = { - .atomic_check = fsl_dcu_drm_encoder_atomic_check, - .disable = fsl_dcu_drm_encoder_disable, - .enable = fsl_dcu_drm_encoder_enable, -}; - static void fsl_dcu_drm_encoder_destroy(struct drm_encoder *encoder) { drm_encoder_cleanup(encoder); @@ -68,13 +36,16 @@ int fsl_dcu_drm_encoder_create(struct fsl_dcu_drm_device *fsl_dev, int ret; encoder->possible_crtcs = 1; + + /* Use bypass mode for parallel RGB/LVDS encoder */ + if (fsl_dev->tcon) + fsl_tcon_bypass_enable(fsl_dev->tcon); + ret = drm_encoder_init(fsl_dev->drm, encoder, &encoder_funcs, DRM_MODE_ENCODER_LVDS, NULL); if (ret < 0) return ret; - drm_encoder_helper_add(encoder, &encoder_helper_funcs); - return 0; } diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c index e537930c64b5..c6f780f5abc9 100644 --- a/drivers/gpu/drm/i915/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/i915_gem_userptr.c @@ -508,6 +508,10 @@ __i915_gem_userptr_get_pages_worker(struct work_struct *_work) pvec = drm_malloc_gfp(npages, sizeof(struct page *), GFP_TEMPORARY); if (pvec != NULL) { struct mm_struct *mm = obj->userptr.mm->mm; + unsigned int flags = 0; + + if (!obj->userptr.read_only) + flags |= FOLL_WRITE; ret = -EFAULT; if (atomic_inc_not_zero(&mm->mm_users)) { @@ -517,7 +521,7 @@ __i915_gem_userptr_get_pages_worker(struct work_struct *_work) (work->task, mm, obj->userptr.ptr + pinned * PAGE_SIZE, npages - pinned, - !obj->userptr.read_only, 0, + flags, pvec + pinned, NULL); if (ret < 0) break; diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 455268214b89..3de5e6e21662 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -566,7 +566,8 @@ static int radeon_ttm_tt_pin_userptr(struct ttm_tt *ttm) uint64_t userptr = gtt->userptr + pinned * PAGE_SIZE; struct page **pages = ttm->pages + pinned; - r = get_user_pages(userptr, num_pages, write, 0, pages, NULL); + r = get_user_pages(userptr, num_pages, write ? FOLL_WRITE : 0, + pages, NULL); if (r < 0) goto release_pages; diff --git a/drivers/gpu/drm/via/via_dmablit.c b/drivers/gpu/drm/via/via_dmablit.c index 7e2a12c4fed2..1a3ad769f8c8 100644 --- a/drivers/gpu/drm/via/via_dmablit.c +++ b/drivers/gpu/drm/via/via_dmablit.c @@ -241,8 +241,8 @@ via_lock_all_dma_pages(drm_via_sg_info_t *vsg, drm_via_dmablit_t *xfer) down_read(¤t->mm->mmap_sem); ret = get_user_pages((unsigned long)xfer->mem_addr, vsg->num_pages, - (vsg->direction == DMA_FROM_DEVICE), - 0, vsg->pages, NULL); + (vsg->direction == DMA_FROM_DEVICE) ? FOLL_WRITE : 0, + vsg->pages, NULL); up_read(¤t->mm->mmap_sem); if (ret != vsg->num_pages) { diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index e8ae3dc476d1..18061a4bc2f2 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -241,15 +241,15 @@ static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, void *ptr); MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev"); -module_param_named(enable_fbdev, enable_fbdev, int, 0600); +module_param_named(enable_fbdev, enable_fbdev, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(force_dma_api, "Force using the DMA API for TTM pages"); -module_param_named(force_dma_api, vmw_force_iommu, int, 0600); +module_param_named(force_dma_api, vmw_force_iommu, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages"); -module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600); +module_param_named(restrict_iommu, vmw_restrict_iommu, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages"); -module_param_named(force_coherent, vmw_force_coherent, int, 0600); +module_param_named(force_coherent, vmw_force_coherent, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU"); -module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600); +module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes"); module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 070d750af16d..1e59a486bba8 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -43,7 +43,7 @@ #define VMWGFX_DRIVER_DATE "20160210" #define VMWGFX_DRIVER_MAJOR 2 -#define VMWGFX_DRIVER_MINOR 10 +#define VMWGFX_DRIVER_MINOR 11 #define VMWGFX_DRIVER_PATCHLEVEL 0 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index dc5beff2b4aa..c7b53d987f06 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -35,17 +35,37 @@ #define VMW_RES_HT_ORDER 12 /** + * enum vmw_resource_relocation_type - Relocation type for resources + * + * @vmw_res_rel_normal: Traditional relocation. The resource id in the + * command stream is replaced with the actual id after validation. + * @vmw_res_rel_nop: NOP relocation. The command is unconditionally replaced + * with a NOP. + * @vmw_res_rel_cond_nop: Conditional NOP relocation. If the resource id + * after validation is -1, the command is replaced with a NOP. Otherwise no + * action. + */ +enum vmw_resource_relocation_type { + vmw_res_rel_normal, + vmw_res_rel_nop, + vmw_res_rel_cond_nop, + vmw_res_rel_max +}; + +/** * struct vmw_resource_relocation - Relocation info for resources * * @head: List head for the software context's relocation list. * @res: Non-ref-counted pointer to the resource. - * @offset: Offset of 4 byte entries into the command buffer where the + * @offset: Offset of single byte entries into the command buffer where the * id that needs fixup is located. + * @rel_type: Type of relocation. */ struct vmw_resource_relocation { struct list_head head; const struct vmw_resource *res; - unsigned long offset; + u32 offset:29; + enum vmw_resource_relocation_type rel_type:3; }; /** @@ -109,7 +129,18 @@ static int vmw_bo_to_validate_list(struct vmw_sw_context *sw_context, struct vmw_dma_buffer *vbo, bool validate_as_mob, uint32_t *p_val_node); - +/** + * vmw_ptr_diff - Compute the offset from a to b in bytes + * + * @a: A starting pointer. + * @b: A pointer offset in the same address space. + * + * Returns: The offset in bytes between the two pointers. + */ +static size_t vmw_ptr_diff(void *a, void *b) +{ + return (unsigned long) b - (unsigned long) a; +} /** * vmw_resources_unreserve - unreserve resources previously reserved for @@ -409,11 +440,14 @@ static int vmw_resource_context_res_add(struct vmw_private *dev_priv, * @list: Pointer to head of relocation list. * @res: The resource. * @offset: Offset into the command buffer currently being parsed where the - * id that needs fixup is located. Granularity is 4 bytes. + * id that needs fixup is located. Granularity is one byte. + * @rel_type: Relocation type. */ static int vmw_resource_relocation_add(struct list_head *list, const struct vmw_resource *res, - unsigned long offset) + unsigned long offset, + enum vmw_resource_relocation_type + rel_type) { struct vmw_resource_relocation *rel; @@ -425,6 +459,7 @@ static int vmw_resource_relocation_add(struct list_head *list, rel->res = res; rel->offset = offset; + rel->rel_type = rel_type; list_add_tail(&rel->head, list); return 0; @@ -459,11 +494,24 @@ static void vmw_resource_relocations_apply(uint32_t *cb, { struct vmw_resource_relocation *rel; + /* Validate the struct vmw_resource_relocation member size */ + BUILD_BUG_ON(SVGA_CB_MAX_SIZE >= (1 << 29)); + BUILD_BUG_ON(vmw_res_rel_max >= (1 << 3)); + list_for_each_entry(rel, list, head) { - if (likely(rel->res != NULL)) - cb[rel->offset] = rel->res->id; - else - cb[rel->offset] = SVGA_3D_CMD_NOP; + u32 *addr = (u32 *)((unsigned long) cb + rel->offset); + switch (rel->rel_type) { + case vmw_res_rel_normal: + *addr = rel->res->id; + break; + case vmw_res_rel_nop: + *addr = SVGA_3D_CMD_NOP; + break; + default: + if (rel->res->id == -1) + *addr = SVGA_3D_CMD_NOP; + break; + } } } @@ -655,7 +703,9 @@ static int vmw_cmd_res_reloc_add(struct vmw_private *dev_priv, *p_val = NULL; ret = vmw_resource_relocation_add(&sw_context->res_relocations, res, - id_loc - sw_context->buf_start); + vmw_ptr_diff(sw_context->buf_start, + id_loc), + vmw_res_rel_normal); if (unlikely(ret != 0)) return ret; @@ -721,7 +771,8 @@ vmw_cmd_res_check(struct vmw_private *dev_priv, return vmw_resource_relocation_add (&sw_context->res_relocations, res, - id_loc - sw_context->buf_start); + vmw_ptr_diff(sw_context->buf_start, id_loc), + vmw_res_rel_normal); } ret = vmw_user_resource_lookup_handle(dev_priv, @@ -2143,10 +2194,10 @@ static int vmw_cmd_shader_define(struct vmw_private *dev_priv, return ret; return vmw_resource_relocation_add(&sw_context->res_relocations, - NULL, &cmd->header.id - - sw_context->buf_start); - - return 0; + NULL, + vmw_ptr_diff(sw_context->buf_start, + &cmd->header.id), + vmw_res_rel_nop); } /** @@ -2188,10 +2239,10 @@ static int vmw_cmd_shader_destroy(struct vmw_private *dev_priv, return ret; return vmw_resource_relocation_add(&sw_context->res_relocations, - NULL, &cmd->header.id - - sw_context->buf_start); - - return 0; + NULL, + vmw_ptr_diff(sw_context->buf_start, + &cmd->header.id), + vmw_res_rel_nop); } /** @@ -2848,8 +2899,7 @@ static int vmw_cmd_dx_cid_check(struct vmw_private *dev_priv, * @header: Pointer to the command header in the command stream. * * Check that the view exists, and if it was not created using this - * command batch, make sure it's validated (present in the device) so that - * the remove command will not confuse the device. + * command batch, conditionally make this command a NOP. */ static int vmw_cmd_dx_view_remove(struct vmw_private *dev_priv, struct vmw_sw_context *sw_context, @@ -2877,10 +2927,16 @@ static int vmw_cmd_dx_view_remove(struct vmw_private *dev_priv, return ret; /* - * Add view to the validate list iff it was not created using this - * command batch. + * If the view wasn't created during this command batch, it might + * have been removed due to a context swapout, so add a + * relocation to conditionally make this command a NOP to avoid + * device errors. */ - return vmw_view_res_val_add(sw_context, view); + return vmw_resource_relocation_add(&sw_context->res_relocations, + view, + vmw_ptr_diff(sw_context->buf_start, + &cmd->header.id), + vmw_res_rel_cond_nop); } /** @@ -3029,6 +3085,35 @@ static int vmw_cmd_dx_genmips(struct vmw_private *dev_priv, cmd->body.shaderResourceViewId); } +/** + * vmw_cmd_dx_transfer_from_buffer - + * Validate an SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command + * + * @dev_priv: Pointer to a device private struct. + * @sw_context: The software context being used for this batch. + * @header: Pointer to the command header in the command stream. + */ +static int vmw_cmd_dx_transfer_from_buffer(struct vmw_private *dev_priv, + struct vmw_sw_context *sw_context, + SVGA3dCmdHeader *header) +{ + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDXTransferFromBuffer body; + } *cmd = container_of(header, typeof(*cmd), header); + int ret; + + ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, + user_surface_converter, + &cmd->body.srcSid, NULL); + if (ret != 0) + return ret; + + return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, + user_surface_converter, + &cmd->body.destSid, NULL); +} + static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv, struct vmw_sw_context *sw_context, void *buf, uint32_t *size) @@ -3379,6 +3464,9 @@ static const struct vmw_cmd_entry vmw_cmd_entries[SVGA_3D_CMD_MAX] = { &vmw_cmd_buffer_copy_check, true, false, true), VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY_REGION, &vmw_cmd_pred_copy_check, true, false, true), + VMW_CMD_DEF(SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER, + &vmw_cmd_dx_transfer_from_buffer, + true, false, true), }; static int vmw_cmd_check(struct vmw_private *dev_priv, @@ -3848,14 +3936,14 @@ static void *vmw_execbuf_cmdbuf(struct vmw_private *dev_priv, int ret; *header = NULL; - if (!dev_priv->cman || kernel_commands) - return kernel_commands; - if (command_size > SVGA_CB_MAX_SIZE) { DRM_ERROR("Command buffer is too large.\n"); return ERR_PTR(-EINVAL); } + if (!dev_priv->cman || kernel_commands) + return kernel_commands; + /* If possible, add a little space for fencing. */ cmdbuf_size = command_size + 512; cmdbuf_size = min_t(size_t, cmdbuf_size, SVGA_CB_MAX_SIZE); @@ -4232,9 +4320,6 @@ void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv, ttm_bo_unref(&query_val.bo); ttm_bo_unref(&pinned_val.bo); vmw_dmabuf_unreference(&dev_priv->pinned_bo); - DRM_INFO("Dummy query bo pin count: %d\n", - dev_priv->dummy_query_bo->pin_count); - out_unlock: return; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 6a328d507a28..52ca1c9d070e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -574,10 +574,8 @@ static int vmw_user_dmabuf_synccpu_grab(struct vmw_user_dma_buffer *user_bo, bool nonblock = !!(flags & drm_vmw_synccpu_dontblock); long lret; - if (nonblock) - return reservation_object_test_signaled_rcu(bo->resv, true) ? 0 : -EBUSY; - - lret = reservation_object_wait_timeout_rcu(bo->resv, true, true, MAX_SCHEDULE_TIMEOUT); + lret = reservation_object_wait_timeout_rcu(bo->resv, true, true, + nonblock ? 0 : MAX_SCHEDULE_TIMEOUT); if (!lret) return -EBUSY; else if (lret < 0) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index c2a721a8cef9..b445ce9b9757 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -324,7 +324,7 @@ static void vmw_hw_surface_destroy(struct vmw_resource *res) if (res->id != -1) { cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size()); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "destruction.\n"); return; @@ -397,7 +397,7 @@ static int vmw_legacy_srf_create(struct vmw_resource *res) submit_size = vmw_surface_define_size(srf); cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "creation.\n"); ret = -ENOMEM; @@ -446,11 +446,10 @@ static int vmw_legacy_srf_dma(struct vmw_resource *res, uint8_t *cmd; struct vmw_private *dev_priv = res->dev_priv; - BUG_ON(val_buf->bo == NULL); - + BUG_ON(!val_buf->bo); submit_size = vmw_surface_dma_size(srf); cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "DMA.\n"); return -ENOMEM; @@ -538,7 +537,7 @@ static int vmw_legacy_srf_destroy(struct vmw_resource *res) submit_size = vmw_surface_destroy_size(); cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "eviction.\n"); return -ENOMEM; @@ -578,7 +577,7 @@ static int vmw_surface_init(struct vmw_private *dev_priv, int ret; struct vmw_resource *res = &srf->res; - BUG_ON(res_free == NULL); + BUG_ON(!res_free); if (!dev_priv->has_mob) vmw_fifo_resource_inc(dev_priv); ret = vmw_resource_init(dev_priv, res, true, res_free, @@ -700,7 +699,6 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, struct drm_vmw_surface_create_req *req = &arg->req; struct drm_vmw_surface_arg *rep = &arg->rep; struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; - struct drm_vmw_size __user *user_sizes; int ret; int i, j; uint32_t cur_bo_offset; @@ -748,7 +746,7 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, } user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); - if (unlikely(user_srf == NULL)) { + if (unlikely(!user_srf)) { ret = -ENOMEM; goto out_no_user_srf; } @@ -763,29 +761,21 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels)); srf->num_sizes = num_sizes; user_srf->size = size; - - srf->sizes = kmalloc(srf->num_sizes * sizeof(*srf->sizes), GFP_KERNEL); - if (unlikely(srf->sizes == NULL)) { - ret = -ENOMEM; + srf->sizes = memdup_user((struct drm_vmw_size __user *)(unsigned long) + req->size_addr, + sizeof(*srf->sizes) * srf->num_sizes); + if (IS_ERR(srf->sizes)) { + ret = PTR_ERR(srf->sizes); goto out_no_sizes; } - srf->offsets = kmalloc(srf->num_sizes * sizeof(*srf->offsets), - GFP_KERNEL); - if (unlikely(srf->offsets == NULL)) { + srf->offsets = kmalloc_array(srf->num_sizes, + sizeof(*srf->offsets), + GFP_KERNEL); + if (unlikely(!srf->offsets)) { ret = -ENOMEM; goto out_no_offsets; } - user_sizes = (struct drm_vmw_size __user *)(unsigned long) - req->size_addr; - - ret = copy_from_user(srf->sizes, user_sizes, - srf->num_sizes * sizeof(*srf->sizes)); - if (unlikely(ret != 0)) { - ret = -EFAULT; - goto out_no_copy; - } - srf->base_size = *srf->sizes; srf->autogen_filter = SVGA3D_TEX_FILTER_NONE; srf->multisample_count = 0; @@ -923,7 +913,7 @@ vmw_surface_handle_reference(struct vmw_private *dev_priv, ret = -EINVAL; base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle); - if (unlikely(base == NULL)) { + if (unlikely(!base)) { DRM_ERROR("Could not find surface to reference.\n"); goto out_no_lookup; } @@ -1069,7 +1059,7 @@ static int vmw_gb_surface_create(struct vmw_resource *res) cmd = vmw_fifo_reserve(dev_priv, submit_len); cmd2 = (typeof(cmd2))cmd; - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "creation.\n"); ret = -ENOMEM; @@ -1135,7 +1125,7 @@ static int vmw_gb_surface_bind(struct vmw_resource *res, submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0); cmd1 = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd1 == NULL)) { + if (unlikely(!cmd1)) { DRM_ERROR("Failed reserving FIFO space for surface " "binding.\n"); return -ENOMEM; @@ -1185,7 +1175,7 @@ static int vmw_gb_surface_unbind(struct vmw_resource *res, submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2)); cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "unbinding.\n"); return -ENOMEM; @@ -1244,7 +1234,7 @@ static int vmw_gb_surface_destroy(struct vmw_resource *res) vmw_binding_res_list_scrub(&res->binding_head); cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "destruction.\n"); mutex_unlock(&dev_priv->binding_mutex); @@ -1410,7 +1400,7 @@ int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data, user_srf = container_of(base, struct vmw_user_surface, prime.base); srf = &user_srf->srf; - if (srf->res.backup == NULL) { + if (!srf->res.backup) { DRM_ERROR("Shared GB surface is missing a backup buffer.\n"); goto out_bad_resource; } @@ -1524,7 +1514,7 @@ int vmw_surface_gb_priv_define(struct drm_device *dev, } user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); - if (unlikely(user_srf == NULL)) { + if (unlikely(!user_srf)) { ret = -ENOMEM; goto out_no_user_srf; } diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c index 8fd4bf77f264..818ea7d93533 100644 --- a/drivers/hid/hid-dr.c +++ b/drivers/hid/hid-dr.c @@ -234,58 +234,6 @@ static __u8 pid0011_rdesc_fixed[] = { 0xC0 /* End Collection */ }; -static __u8 pid0006_rdesc_fixed[] = { - 0x05, 0x01, /* Usage Page (Generic Desktop) */ - 0x09, 0x04, /* Usage (Joystick) */ - 0xA1, 0x01, /* Collection (Application) */ - 0xA1, 0x02, /* Collection (Logical) */ - 0x75, 0x08, /* Report Size (8) */ - 0x95, 0x05, /* Report Count (5) */ - 0x15, 0x00, /* Logical Minimum (0) */ - 0x26, 0xFF, 0x00, /* Logical Maximum (255) */ - 0x35, 0x00, /* Physical Minimum (0) */ - 0x46, 0xFF, 0x00, /* Physical Maximum (255) */ - 0x09, 0x30, /* Usage (X) */ - 0x09, 0x33, /* Usage (Ry) */ - 0x09, 0x32, /* Usage (Z) */ - 0x09, 0x31, /* Usage (Y) */ - 0x09, 0x34, /* Usage (Ry) */ - 0x81, 0x02, /* Input (Variable) */ - 0x75, 0x04, /* Report Size (4) */ - 0x95, 0x01, /* Report Count (1) */ - 0x25, 0x07, /* Logical Maximum (7) */ - 0x46, 0x3B, 0x01, /* Physical Maximum (315) */ - 0x65, 0x14, /* Unit (Centimeter) */ - 0x09, 0x39, /* Usage (Hat switch) */ - 0x81, 0x42, /* Input (Variable) */ - 0x65, 0x00, /* Unit (None) */ - 0x75, 0x01, /* Report Size (1) */ - 0x95, 0x0C, /* Report Count (12) */ - 0x25, 0x01, /* Logical Maximum (1) */ - 0x45, 0x01, /* Physical Maximum (1) */ - 0x05, 0x09, /* Usage Page (Button) */ - 0x19, 0x01, /* Usage Minimum (0x01) */ - 0x29, 0x0C, /* Usage Maximum (0x0C) */ - 0x81, 0x02, /* Input (Variable) */ - 0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined) */ - 0x75, 0x01, /* Report Size (1) */ - 0x95, 0x08, /* Report Count (8) */ - 0x25, 0x01, /* Logical Maximum (1) */ - 0x45, 0x01, /* Physical Maximum (1) */ - 0x09, 0x01, /* Usage (0x01) */ - 0x81, 0x02, /* Input (Variable) */ - 0xC0, /* End Collection */ - 0xA1, 0x02, /* Collection (Logical) */ - 0x75, 0x08, /* Report Size (8) */ - 0x95, 0x07, /* Report Count (7) */ - 0x46, 0xFF, 0x00, /* Physical Maximum (255) */ - 0x26, 0xFF, 0x00, /* Logical Maximum (255) */ - 0x09, 0x02, /* Usage (0x02) */ - 0x91, 0x02, /* Output (Variable) */ - 0xC0, /* End Collection */ - 0xC0 /* End Collection */ -}; - static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { @@ -296,16 +244,34 @@ static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc, *rsize = sizeof(pid0011_rdesc_fixed); } break; - case 0x0006: - if (*rsize == sizeof(pid0006_rdesc_fixed)) { - rdesc = pid0006_rdesc_fixed; - *rsize = sizeof(pid0006_rdesc_fixed); - } - break; } return rdesc; } +#define map_abs(c) hid_map_usage(hi, usage, bit, max, EV_ABS, (c)) +#define map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c)) + +static int dr_input_mapping(struct hid_device *hdev, struct hid_input *hi, + struct hid_field *field, struct hid_usage *usage, + unsigned long **bit, int *max) +{ + switch (usage->hid) { + /* + * revert to the old hid-input behavior where axes + * can be randomly assigned when hid->usage is reused. + */ + case HID_GD_X: case HID_GD_Y: case HID_GD_Z: + case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: + if (field->flags & HID_MAIN_ITEM_RELATIVE) + map_rel(usage->hid & 0xf); + else + map_abs(usage->hid & 0xf); + return 1; + } + + return 0; +} + static int dr_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret; @@ -352,6 +318,7 @@ static struct hid_driver dr_driver = { .id_table = dr_devices, .report_fixup = dr_report_fixup, .probe = dr_probe, + .input_mapping = dr_input_mapping, }; module_hid_driver(dr_driver); diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index cd59c79eebdd..6cfb5cacc253 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -64,6 +64,9 @@ #define USB_VENDOR_ID_AKAI 0x2011 #define USB_DEVICE_ID_AKAI_MPKMINI2 0x0715 +#define USB_VENDOR_ID_AKAI_09E8 0x09E8 +#define USB_DEVICE_ID_AKAI_09E8_MIDIMIX 0x0031 + #define USB_VENDOR_ID_ALCOR 0x058f #define USB_DEVICE_ID_ALCOR_USBRS232 0x9720 diff --git a/drivers/hid/hid-led.c b/drivers/hid/hid-led.c index d8d55f37b4f5..d3e1ab162f7c 100644 --- a/drivers/hid/hid-led.c +++ b/drivers/hid/hid-led.c @@ -100,6 +100,7 @@ struct hidled_device { const struct hidled_config *config; struct hid_device *hdev; struct hidled_rgb *rgb; + u8 *buf; struct mutex lock; }; @@ -118,13 +119,19 @@ static int hidled_send(struct hidled_device *ldev, __u8 *buf) mutex_lock(&ldev->lock); + /* + * buffer provided to hid_hw_raw_request must not be on the stack + * and must not be part of a data structure + */ + memcpy(ldev->buf, buf, ldev->config->report_size); + if (ldev->config->report_type == RAW_REQUEST) - ret = hid_hw_raw_request(ldev->hdev, buf[0], buf, + ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf, ldev->config->report_size, HID_FEATURE_REPORT, HID_REQ_SET_REPORT); else if (ldev->config->report_type == OUTPUT_REPORT) - ret = hid_hw_output_report(ldev->hdev, buf, + ret = hid_hw_output_report(ldev->hdev, ldev->buf, ldev->config->report_size); else ret = -EINVAL; @@ -147,17 +154,21 @@ static int hidled_recv(struct hidled_device *ldev, __u8 *buf) mutex_lock(&ldev->lock); - ret = hid_hw_raw_request(ldev->hdev, buf[0], buf, + memcpy(ldev->buf, buf, ldev->config->report_size); + + ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf, ldev->config->report_size, HID_FEATURE_REPORT, HID_REQ_SET_REPORT); if (ret < 0) goto err; - ret = hid_hw_raw_request(ldev->hdev, buf[0], buf, + ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf, ldev->config->report_size, HID_FEATURE_REPORT, HID_REQ_GET_REPORT); + + memcpy(buf, ldev->buf, ldev->config->report_size); err: mutex_unlock(&ldev->lock); @@ -447,6 +458,10 @@ static int hidled_probe(struct hid_device *hdev, const struct hid_device_id *id) if (!ldev) return -ENOMEM; + ldev->buf = devm_kmalloc(&hdev->dev, MAX_REPORT_SIZE, GFP_KERNEL); + if (!ldev->buf) + return -ENOMEM; + ret = hid_parse(hdev); if (ret) return ret; diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index 0a0eca5da47d..354d49ea36dd 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -56,6 +56,7 @@ static const struct hid_blacklist { { USB_VENDOR_ID_AIREN, USB_DEVICE_ID_AIREN_SLIMPLUS, HID_QUIRK_NOGET }, { USB_VENDOR_ID_AKAI, USB_DEVICE_ID_AKAI_MPKMINI2, HID_QUIRK_NO_INIT_REPORTS }, + { USB_VENDOR_ID_AKAI_09E8, USB_DEVICE_ID_AKAI_09E8_MIDIMIX, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET }, { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET }, { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET }, diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index c68746ce6624..224ad274ea0b 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -94,6 +94,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, unsigned long dma_attrs = 0; struct scatterlist *sg, *sg_list_start; int need_release = 0; + unsigned int gup_flags = FOLL_WRITE; if (dmasync) dma_attrs |= DMA_ATTR_WRITE_BARRIER; @@ -183,6 +184,9 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, if (ret) goto out; + if (!umem->writable) + gup_flags |= FOLL_FORCE; + need_release = 1; sg_list_start = umem->sg_head.sgl; @@ -190,7 +194,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, ret = get_user_pages(cur_base, min_t(unsigned long, npages, PAGE_SIZE / sizeof (struct page *)), - 1, !umem->writable, page_list, vma_list); + gup_flags, page_list, vma_list); if (ret < 0) goto out; diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c index 75077a018675..1f0fe3217f23 100644 --- a/drivers/infiniband/core/umem_odp.c +++ b/drivers/infiniband/core/umem_odp.c @@ -527,6 +527,7 @@ int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 user_virt, u64 bcnt, u64 off; int j, k, ret = 0, start_idx, npages = 0; u64 base_virt_addr; + unsigned int flags = 0; if (access_mask == 0) return -EINVAL; @@ -556,6 +557,9 @@ int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 user_virt, u64 bcnt, goto out_put_task; } + if (access_mask & ODP_WRITE_ALLOWED_BIT) + flags |= FOLL_WRITE; + start_idx = (user_virt - ib_umem_start(umem)) >> PAGE_SHIFT; k = start_idx; @@ -574,8 +578,7 @@ int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 user_virt, u64 bcnt, */ npages = get_user_pages_remote(owning_process, owning_mm, user_virt, gup_num_pages, - access_mask & ODP_WRITE_ALLOWED_BIT, - 0, local_page_list, NULL); + flags, local_page_list, NULL); up_read(&owning_mm->mmap_sem); if (npages < 0) diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c index 6c00d04b8b28..c6fe89d79248 100644 --- a/drivers/infiniband/hw/mthca/mthca_memfree.c +++ b/drivers/infiniband/hw/mthca/mthca_memfree.c @@ -472,7 +472,7 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar, goto out; } - ret = get_user_pages(uaddr & PAGE_MASK, 1, 1, 0, pages, NULL); + ret = get_user_pages(uaddr & PAGE_MASK, 1, FOLL_WRITE, pages, NULL); if (ret < 0) goto out; diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c index 2d2b94fd3633..75f08624ac05 100644 --- a/drivers/infiniband/hw/qib/qib_user_pages.c +++ b/drivers/infiniband/hw/qib/qib_user_pages.c @@ -67,7 +67,8 @@ static int __qib_get_user_pages(unsigned long start_page, size_t num_pages, for (got = 0; got < num_pages; got += ret) { ret = get_user_pages(start_page + got * PAGE_SIZE, - num_pages - got, 1, 1, + num_pages - got, + FOLL_WRITE | FOLL_FORCE, p + got, NULL); if (ret < 0) goto bail_release; diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c index a0b6ebee4d8a..1ccee6ea5bc3 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom.c +++ b/drivers/infiniband/hw/usnic/usnic_uiom.c @@ -111,6 +111,7 @@ static int usnic_uiom_get_pages(unsigned long addr, size_t size, int writable, int i; int flags; dma_addr_t pa; + unsigned int gup_flags; if (!can_do_mlock()) return -EPERM; @@ -135,6 +136,8 @@ static int usnic_uiom_get_pages(unsigned long addr, size_t size, int writable, flags = IOMMU_READ | IOMMU_CACHE; flags |= (writable) ? IOMMU_WRITE : 0; + gup_flags = FOLL_WRITE; + gup_flags |= (writable) ? 0 : FOLL_FORCE; cur_base = addr & PAGE_MASK; ret = 0; @@ -142,7 +145,7 @@ static int usnic_uiom_get_pages(unsigned long addr, size_t size, int writable, ret = get_user_pages(cur_base, min_t(unsigned long, npages, PAGE_SIZE / sizeof(struct page *)), - 1, !writable, page_list, NULL); + gup_flags, page_list, NULL); if (ret < 0) goto out; diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 82b0b5daf3f5..bc0af3307bbf 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -158,8 +158,8 @@ config PIC32_EVIC select IRQ_DOMAIN config JCORE_AIC - bool "J-Core integrated AIC" - depends on OF && (SUPERH || COMPILE_TEST) + bool "J-Core integrated AIC" if COMPILE_TEST + depends on OF select IRQ_DOMAIN help Support for the J-Core integrated AIC. diff --git a/drivers/irqchip/irq-eznps.c b/drivers/irqchip/irq-eznps.c index ebc2b0b15f67..2a7a38830a8d 100644 --- a/drivers/irqchip/irq-eznps.c +++ b/drivers/irqchip/irq-eznps.c @@ -135,7 +135,7 @@ static const struct irq_domain_ops nps400_irq_ops = { static int __init nps400_of_init(struct device_node *node, struct device_node *parent) { - static struct irq_domain *nps400_root_domain; + struct irq_domain *nps400_root_domain; if (parent) { pr_err("DeviceTree incore ic not a root irq controller\n"); diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 003495d91f9c..c5dee300e8a3 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1023,7 +1023,7 @@ static void its_free_tables(struct its_node *its) static int its_alloc_tables(struct its_node *its) { - u64 typer = readq_relaxed(its->base + GITS_TYPER); + u64 typer = gic_read_typer(its->base + GITS_TYPER); u32 ids = GITS_TYPER_DEVBITS(typer); u64 shr = GITS_BASER_InnerShareable; u64 cache = GITS_BASER_WaWb; @@ -1198,7 +1198,7 @@ static void its_cpu_init_collection(void) * We now have to bind each collection to its target * redistributor. */ - if (readq_relaxed(its->base + GITS_TYPER) & GITS_TYPER_PTA) { + if (gic_read_typer(its->base + GITS_TYPER) & GITS_TYPER_PTA) { /* * This ITS wants the physical address of the * redistributor. @@ -1208,7 +1208,7 @@ static void its_cpu_init_collection(void) /* * This ITS wants a linear CPU number. */ - target = readq_relaxed(gic_data_rdist_rd_base() + GICR_TYPER); + target = gic_read_typer(gic_data_rdist_rd_base() + GICR_TYPER); target = GICR_TYPER_CPU_NUMBER(target) << 16; } @@ -1691,7 +1691,7 @@ static int __init its_probe_one(struct resource *res, INIT_LIST_HEAD(&its->its_device_list); its->base = its_base; its->phys_base = res->start; - its->ite_size = ((readl_relaxed(its_base + GITS_TYPER) >> 4) & 0xf) + 1; + its->ite_size = ((gic_read_typer(its_base + GITS_TYPER) >> 4) & 0xf) + 1; its->numa_node = numa_node; its->cmd_base = kzalloc(ITS_CMD_QUEUE_SZ, GFP_KERNEL); @@ -1763,7 +1763,7 @@ out_unmap: static bool gic_rdists_supports_plpis(void) { - return !!(readl_relaxed(gic_data_rdist_rd_base() + GICR_TYPER) & GICR_TYPER_PLPIS); + return !!(gic_read_typer(gic_data_rdist_rd_base() + GICR_TYPER) & GICR_TYPER_PLPIS); } int its_cpu_init(void) diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 58e5b4e87056..d6c404b3584d 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -1279,7 +1279,7 @@ static bool gic_check_eoimode(struct device_node *node, void __iomem **base) */ *base += 0xf000; cpuif_res.start += 0xf000; - pr_warn("GIC: Adjusting CPU interface base to %pa", + pr_warn("GIC: Adjusting CPU interface base to %pa\n", &cpuif_res.start); } diff --git a/drivers/media/pci/ivtv/ivtv-udma.c b/drivers/media/pci/ivtv/ivtv-udma.c index 4769469fe842..2c9232ef7baa 100644 --- a/drivers/media/pci/ivtv/ivtv-udma.c +++ b/drivers/media/pci/ivtv/ivtv-udma.c @@ -124,8 +124,8 @@ int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, } /* Get user pages for DMA Xfer */ - err = get_user_pages_unlocked(user_dma.uaddr, user_dma.page_count, 0, - 1, dma->map); + err = get_user_pages_unlocked(user_dma.uaddr, user_dma.page_count, + dma->map, FOLL_FORCE); if (user_dma.page_count != err) { IVTV_DEBUG_WARN("failed to map user pages, returned %d instead of %d\n", diff --git a/drivers/media/pci/ivtv/ivtv-yuv.c b/drivers/media/pci/ivtv/ivtv-yuv.c index b094054cda6e..f7299d3d8244 100644 --- a/drivers/media/pci/ivtv/ivtv-yuv.c +++ b/drivers/media/pci/ivtv/ivtv-yuv.c @@ -76,11 +76,12 @@ static int ivtv_yuv_prep_user_dma(struct ivtv *itv, struct ivtv_user_dma *dma, /* Get user pages for DMA Xfer */ y_pages = get_user_pages_unlocked(y_dma.uaddr, - y_dma.page_count, 0, 1, &dma->map[0]); + y_dma.page_count, &dma->map[0], FOLL_FORCE); uv_pages = 0; /* silence gcc. value is set and consumed only if: */ if (y_pages == y_dma.page_count) { uv_pages = get_user_pages_unlocked(uv_dma.uaddr, - uv_dma.page_count, 0, 1, &dma->map[y_pages]); + uv_dma.page_count, &dma->map[y_pages], + FOLL_FORCE); } if (y_pages != y_dma.page_count || uv_pages != uv_dma.page_count) { diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c index e668dde6d857..a31b95cb3b09 100644 --- a/drivers/media/platform/omap/omap_vout.c +++ b/drivers/media/platform/omap/omap_vout.c @@ -214,7 +214,7 @@ static int omap_vout_get_userptr(struct videobuf_buffer *vb, u32 virtp, if (!vec) return -ENOMEM; - ret = get_vaddr_frames(virtp, 1, true, false, vec); + ret = get_vaddr_frames(virtp, 1, FOLL_WRITE, vec); if (ret != 1) { frame_vector_destroy(vec); return -EINVAL; diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c index f300f060b3f3..1db0af6c7f94 100644 --- a/drivers/media/v4l2-core/videobuf-dma-sg.c +++ b/drivers/media/v4l2-core/videobuf-dma-sg.c @@ -156,6 +156,7 @@ static int videobuf_dma_init_user_locked(struct videobuf_dmabuf *dma, { unsigned long first, last; int err, rw = 0; + unsigned int flags = FOLL_FORCE; dma->direction = direction; switch (dma->direction) { @@ -178,12 +179,14 @@ static int videobuf_dma_init_user_locked(struct videobuf_dmabuf *dma, if (NULL == dma->pages) return -ENOMEM; + if (rw == READ) + flags |= FOLL_WRITE; + dprintk(1, "init user [0x%lx+0x%lx => %d pages]\n", data, size, dma->nr_pages); err = get_user_pages(data & PAGE_MASK, dma->nr_pages, - rw == READ, 1, /* force */ - dma->pages, NULL); + flags, dma->pages, NULL); if (err != dma->nr_pages) { dma->nr_pages = (err >= 0) ? err : 0; diff --git a/drivers/media/v4l2-core/videobuf2-memops.c b/drivers/media/v4l2-core/videobuf2-memops.c index 3c3b517f1d1c..1cd322e939c7 100644 --- a/drivers/media/v4l2-core/videobuf2-memops.c +++ b/drivers/media/v4l2-core/videobuf2-memops.c @@ -42,6 +42,10 @@ struct frame_vector *vb2_create_framevec(unsigned long start, unsigned long first, last; unsigned long nr; struct frame_vector *vec; + unsigned int flags = FOLL_FORCE; + + if (write) + flags |= FOLL_WRITE; first = start >> PAGE_SHIFT; last = (start + length - 1) >> PAGE_SHIFT; @@ -49,7 +53,7 @@ struct frame_vector *vb2_create_framevec(unsigned long start, vec = frame_vector_create(nr); if (!vec) return ERR_PTR(-ENOMEM); - ret = get_vaddr_frames(start & PAGE_MASK, nr, write, true, vec); + ret = get_vaddr_frames(start & PAGE_MASK, nr, flags, vec); if (ret < 0) goto out_destroy; /* We accept only complete set of PFNs */ diff --git a/drivers/memstick/host/rtsx_usb_ms.c b/drivers/memstick/host/rtsx_usb_ms.c index d34bc3530385..2e3cf012ef48 100644 --- a/drivers/memstick/host/rtsx_usb_ms.c +++ b/drivers/memstick/host/rtsx_usb_ms.c @@ -524,6 +524,7 @@ static void rtsx_usb_ms_handle_req(struct work_struct *work) int rc; if (!host->req) { + pm_runtime_get_sync(ms_dev(host)); do { rc = memstick_next_req(msh, &host->req); dev_dbg(ms_dev(host), "next req %d\n", rc); @@ -544,6 +545,7 @@ static void rtsx_usb_ms_handle_req(struct work_struct *work) host->req->error); } } while (!rc); + pm_runtime_put(ms_dev(host)); } } @@ -570,6 +572,7 @@ static int rtsx_usb_ms_set_param(struct memstick_host *msh, dev_dbg(ms_dev(host), "%s: param = %d, value = %d\n", __func__, param, value); + pm_runtime_get_sync(ms_dev(host)); mutex_lock(&ucr->dev_mutex); err = rtsx_usb_card_exclusive_check(ucr, RTSX_USB_MS_CARD); @@ -635,6 +638,7 @@ static int rtsx_usb_ms_set_param(struct memstick_host *msh, } out: mutex_unlock(&ucr->dev_mutex); + pm_runtime_put(ms_dev(host)); /* power-on delay */ if (param == MEMSTICK_POWER && value == MEMSTICK_POWER_ON) @@ -681,6 +685,7 @@ static int rtsx_usb_detect_ms_card(void *__host) int err; for (;;) { + pm_runtime_get_sync(ms_dev(host)); mutex_lock(&ucr->dev_mutex); /* Check pending MS card changes */ @@ -703,6 +708,7 @@ static int rtsx_usb_detect_ms_card(void *__host) } poll_again: + pm_runtime_put(ms_dev(host)); if (host->eject) break; diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index f3d34b941f85..af23d7dfe752 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -229,6 +229,14 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed, if (ctx->status == STARTED) goto out; /* already started */ + /* + * Increment the mapped context count for adapter. This also checks + * if adapter_context_lock is taken. + */ + rc = cxl_adapter_context_get(ctx->afu->adapter); + if (rc) + goto out; + if (task) { ctx->pid = get_task_pid(task, PIDTYPE_PID); ctx->glpid = get_task_pid(task->group_leader, PIDTYPE_PID); @@ -240,6 +248,7 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed, if ((rc = cxl_ops->attach_process(ctx, kernel, wed, 0))) { put_pid(ctx->pid); + cxl_adapter_context_put(ctx->afu->adapter); cxl_ctx_put(); goto out; } diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c index c466ee2b0c97..5e506c19108a 100644 --- a/drivers/misc/cxl/context.c +++ b/drivers/misc/cxl/context.c @@ -238,6 +238,9 @@ int __detach_context(struct cxl_context *ctx) put_pid(ctx->glpid); cxl_ctx_put(); + + /* Decrease the attached context count on the adapter */ + cxl_adapter_context_put(ctx->afu->adapter); return 0; } diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 01d372aba131..a144073593fa 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -618,6 +618,14 @@ struct cxl { bool perst_select_user; bool perst_same_image; bool psl_timebase_synced; + + /* + * number of contexts mapped on to this card. Possible values are: + * >0: Number of contexts mapped and new one can be mapped. + * 0: No active contexts and new ones can be mapped. + * -1: No contexts mapped and new ones cannot be mapped. + */ + atomic_t contexts_num; }; int cxl_pci_alloc_one_irq(struct cxl *adapter); @@ -944,4 +952,20 @@ bool cxl_pci_is_vphb_device(struct pci_dev *dev); /* decode AFU error bits in the PSL register PSL_SERR_An */ void cxl_afu_decode_psl_serr(struct cxl_afu *afu, u64 serr); + +/* + * Increments the number of attached contexts on an adapter. + * In case an adapter_context_lock is taken the return -EBUSY. + */ +int cxl_adapter_context_get(struct cxl *adapter); + +/* Decrements the number of attached contexts on an adapter */ +void cxl_adapter_context_put(struct cxl *adapter); + +/* If no active contexts then prevents contexts from being attached */ +int cxl_adapter_context_lock(struct cxl *adapter); + +/* Unlock the contexts-lock if taken. Warn and force unlock otherwise */ +void cxl_adapter_context_unlock(struct cxl *adapter); + #endif diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c index 5fb9894b157f..d0b421f49b39 100644 --- a/drivers/misc/cxl/file.c +++ b/drivers/misc/cxl/file.c @@ -205,11 +205,22 @@ static long afu_ioctl_start_work(struct cxl_context *ctx, ctx->pid = get_task_pid(current, PIDTYPE_PID); ctx->glpid = get_task_pid(current->group_leader, PIDTYPE_PID); + /* + * Increment the mapped context count for adapter. This also checks + * if adapter_context_lock is taken. + */ + rc = cxl_adapter_context_get(ctx->afu->adapter); + if (rc) { + afu_release_irqs(ctx, ctx); + goto out; + } + trace_cxl_attach(ctx, work.work_element_descriptor, work.num_interrupts, amr); if ((rc = cxl_ops->attach_process(ctx, false, work.work_element_descriptor, amr))) { afu_release_irqs(ctx, ctx); + cxl_adapter_context_put(ctx->afu->adapter); goto out; } diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c index 9aa58a77a24d..3e102cd6ed91 100644 --- a/drivers/misc/cxl/guest.c +++ b/drivers/misc/cxl/guest.c @@ -1152,6 +1152,9 @@ struct cxl *cxl_guest_init_adapter(struct device_node *np, struct platform_devic if ((rc = cxl_sysfs_adapter_add(adapter))) goto err_put1; + /* release the context lock as the adapter is configured */ + cxl_adapter_context_unlock(adapter); + return adapter; err_put1: diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c index d9be23b24aa3..62e0dfb5f15b 100644 --- a/drivers/misc/cxl/main.c +++ b/drivers/misc/cxl/main.c @@ -243,8 +243,10 @@ struct cxl *cxl_alloc_adapter(void) if (dev_set_name(&adapter->dev, "card%i", adapter->adapter_num)) goto err2; - return adapter; + /* start with context lock taken */ + atomic_set(&adapter->contexts_num, -1); + return adapter; err2: cxl_remove_adapter_nr(adapter); err1: @@ -286,6 +288,44 @@ int cxl_afu_select_best_mode(struct cxl_afu *afu) return 0; } +int cxl_adapter_context_get(struct cxl *adapter) +{ + int rc; + + rc = atomic_inc_unless_negative(&adapter->contexts_num); + return rc >= 0 ? 0 : -EBUSY; +} + +void cxl_adapter_context_put(struct cxl *adapter) +{ + atomic_dec_if_positive(&adapter->contexts_num); +} + +int cxl_adapter_context_lock(struct cxl *adapter) +{ + int rc; + /* no active contexts -> contexts_num == 0 */ + rc = atomic_cmpxchg(&adapter->contexts_num, 0, -1); + return rc ? -EBUSY : 0; +} + +void cxl_adapter_context_unlock(struct cxl *adapter) +{ + int val = atomic_cmpxchg(&adapter->contexts_num, -1, 0); + + /* + * contexts lock taken -> contexts_num == -1 + * If not true then show a warning and force reset the lock. + * This will happen when context_unlock was requested without + * doing a context_lock. + */ + if (val != -1) { + atomic_set(&adapter->contexts_num, 0); + WARN(1, "Adapter context unlocked with %d active contexts", + val); + } +} + static int __init init_cxl(void) { int rc = 0; diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c index 7afad8477ad5..e96be9ca4e60 100644 --- a/drivers/misc/cxl/pci.c +++ b/drivers/misc/cxl/pci.c @@ -1487,6 +1487,8 @@ static int cxl_configure_adapter(struct cxl *adapter, struct pci_dev *dev) if ((rc = cxl_native_register_psl_err_irq(adapter))) goto err; + /* Release the context lock as adapter is configured */ + cxl_adapter_context_unlock(adapter); return 0; err: diff --git a/drivers/misc/cxl/sysfs.c b/drivers/misc/cxl/sysfs.c index b043c20f158f..a8b6d6a635e9 100644 --- a/drivers/misc/cxl/sysfs.c +++ b/drivers/misc/cxl/sysfs.c @@ -75,12 +75,31 @@ static ssize_t reset_adapter_store(struct device *device, int val; rc = sscanf(buf, "%i", &val); - if ((rc != 1) || (val != 1)) + if ((rc != 1) || (val != 1 && val != -1)) return -EINVAL; - if ((rc = cxl_ops->adapter_reset(adapter))) - return rc; - return count; + /* + * See if we can lock the context mapping that's only allowed + * when there are no contexts attached to the adapter. Once + * taken this will also prevent any context from getting activated. + */ + if (val == 1) { + rc = cxl_adapter_context_lock(adapter); + if (rc) + goto out; + + rc = cxl_ops->adapter_reset(adapter); + /* In case reset failed release context lock */ + if (rc) + cxl_adapter_context_unlock(adapter); + + } else if (val == -1) { + /* Perform a forced adapter reset */ + rc = cxl_ops->adapter_reset(adapter); + } + +out: + return rc ? rc : count; } static ssize_t load_image_on_perst_show(struct device *device, diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c index e0203b1a20fd..f806a4471eb9 100644 --- a/drivers/misc/mic/scif/scif_rma.c +++ b/drivers/misc/mic/scif/scif_rma.c @@ -1396,8 +1396,7 @@ retry: pinned_pages->nr_pages = get_user_pages( (u64)addr, nr_pages, - !!(prot & SCIF_PROT_WRITE), - 0, + (prot & SCIF_PROT_WRITE) ? FOLL_WRITE : 0, pinned_pages->pages, NULL); up_write(&mm->mmap_sem); diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index a2d97b9b17e3..6fb773dbcd0c 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -198,7 +198,7 @@ static int non_atomic_pte_lookup(struct vm_area_struct *vma, #else *pageshift = PAGE_SHIFT; #endif - if (get_user_pages(vaddr, 1, write, 0, &page, NULL) <= 0) + if (get_user_pages(vaddr, 1, write ? FOLL_WRITE : 0, &page, NULL) <= 0) return -EFAULT; *paddr = page_to_phys(page); put_page(page); diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index c3335112e68c..709a872ed484 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -46,6 +46,7 @@ #include <asm/uaccess.h> #include "queue.h" +#include "block.h" MODULE_ALIAS("mmc:block"); #ifdef MODULE_PARAM_PREFIX @@ -1786,7 +1787,7 @@ static void mmc_blk_packed_hdr_wrq_prep(struct mmc_queue_req *mqrq, struct mmc_blk_data *md = mq->data; struct mmc_packed *packed = mqrq->packed; bool do_rel_wr, do_data_tag; - u32 *packed_cmd_hdr; + __le32 *packed_cmd_hdr; u8 hdr_blocks; u8 i = 1; diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h index 3c15a75bae86..342f1e3f301e 100644 --- a/drivers/mmc/card/queue.h +++ b/drivers/mmc/card/queue.h @@ -31,7 +31,7 @@ enum mmc_packed_type { struct mmc_packed { struct list_head list; - u32 cmd_hdr[1024]; + __le32 cmd_hdr[1024]; unsigned int blocks; u8 nr_entries; u8 retries; diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 3486bc7fbb64..39fc5b2b96c5 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1263,6 +1263,16 @@ static int mmc_select_hs400es(struct mmc_card *card) goto out_err; } + if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_2V) + err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120); + + if (err && card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_8V) + err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180); + + /* If fails try again during next card power cycle */ + if (err) + goto out_err; + err = mmc_select_bus_width(card); if (err < 0) goto out_err; @@ -1272,6 +1282,8 @@ static int mmc_select_hs400es(struct mmc_card *card) if (err) goto out_err; + mmc_set_clock(host, card->ext_csd.hs_max_dtr); + err = mmc_switch_status(card); if (err) goto out_err; diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c index 4106295527b9..6e9c0f8fddb1 100644 --- a/drivers/mmc/host/rtsx_usb_sdmmc.c +++ b/drivers/mmc/host/rtsx_usb_sdmmc.c @@ -1138,11 +1138,6 @@ static void sdmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) dev_dbg(sdmmc_dev(host), "%s\n", __func__); mutex_lock(&ucr->dev_mutex); - if (rtsx_usb_card_exclusive_check(ucr, RTSX_USB_SD_CARD)) { - mutex_unlock(&ucr->dev_mutex); - return; - } - sd_set_power_mode(host, ios->power_mode); sd_set_bus_width(host, ios->bus_width); sd_set_timing(host, ios->timing, &host->ddr_mode); @@ -1314,6 +1309,7 @@ static void rtsx_usb_update_led(struct work_struct *work) container_of(work, struct rtsx_usb_sdmmc, led_work); struct rtsx_ucr *ucr = host->ucr; + pm_runtime_get_sync(sdmmc_dev(host)); mutex_lock(&ucr->dev_mutex); if (host->led.brightness == LED_OFF) @@ -1322,6 +1318,7 @@ static void rtsx_usb_update_led(struct work_struct *work) rtsx_usb_turn_on_led(ucr); mutex_unlock(&ucr->dev_mutex); + pm_runtime_put(sdmmc_dev(host)); } #endif diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 1f54fd8755c8..7123ef96ed18 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -346,7 +346,8 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg) struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host); u32 data; - if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE)) { + if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE || + reg == SDHCI_INT_STATUS)) { if ((val & SDHCI_INT_CARD_INT) && !esdhc_is_usdhc(imx_data)) { /* * Clear and then set D3CD bit to avoid missing the @@ -555,6 +556,25 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) esdhc_clrset_le(host, 0xffff, val, reg); } +static u8 esdhc_readb_le(struct sdhci_host *host, int reg) +{ + u8 ret; + u32 val; + + switch (reg) { + case SDHCI_HOST_CONTROL: + val = readl(host->ioaddr + reg); + + ret = val & SDHCI_CTRL_LED; + ret |= (val >> 5) & SDHCI_CTRL_DMA_MASK; + ret |= (val & ESDHC_CTRL_4BITBUS); + ret |= (val & ESDHC_CTRL_8BITBUS) << 3; + return ret; + } + + return readb(host->ioaddr + reg); +} + static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); @@ -947,6 +967,7 @@ static void esdhc_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) static struct sdhci_ops sdhci_esdhc_ops = { .read_l = esdhc_readl_le, .read_w = esdhc_readw_le, + .read_b = esdhc_readb_le, .write_l = esdhc_writel_le, .write_w = esdhc_writew_le, .write_b = esdhc_writeb_le, diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index da8e40af6f85..410a55b1c25f 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -250,7 +250,7 @@ static void sdhci_arasan_hs400_enhanced_strobe(struct mmc_host *mmc, writel(vendor, host->ioaddr + SDHCI_ARASAN_VENDOR_REGISTER); } -void sdhci_arasan_reset(struct sdhci_host *host, u8 mask) +static void sdhci_arasan_reset(struct sdhci_host *host, u8 mask) { u8 ctrl; struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); @@ -265,6 +265,28 @@ void sdhci_arasan_reset(struct sdhci_host *host, u8 mask) } } +static int sdhci_arasan_voltage_switch(struct mmc_host *mmc, + struct mmc_ios *ios) +{ + switch (ios->signal_voltage) { + case MMC_SIGNAL_VOLTAGE_180: + /* + * Plese don't switch to 1V8 as arasan,5.1 doesn't + * actually refer to this setting to indicate the + * signal voltage and the state machine will be broken + * actually if we force to enable 1V8. That's something + * like broken quirk but we could work around here. + */ + return 0; + case MMC_SIGNAL_VOLTAGE_330: + case MMC_SIGNAL_VOLTAGE_120: + /* We don't support 3V3 and 1V2 */ + break; + } + + return -EINVAL; +} + static struct sdhci_ops sdhci_arasan_ops = { .set_clock = sdhci_arasan_set_clock, .get_max_clock = sdhci_pltfm_clk_get_max_clock, @@ -661,6 +683,8 @@ static int sdhci_arasan_probe(struct platform_device *pdev) host->mmc_host_ops.hs400_enhanced_strobe = sdhci_arasan_hs400_enhanced_strobe; + host->mmc_host_ops.start_signal_voltage_switch = + sdhci_arasan_voltage_switch; } ret = sdhci_add_host(host); diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index 72a1f1f5180a..1d9e00a00e9f 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -32,6 +32,14 @@ #include "sdhci-pci.h" #include "sdhci-pci-o2micro.h" +static int sdhci_pci_enable_dma(struct sdhci_host *host); +static void sdhci_pci_set_bus_width(struct sdhci_host *host, int width); +static void sdhci_pci_hw_reset(struct sdhci_host *host); +static int sdhci_pci_select_drive_strength(struct sdhci_host *host, + struct mmc_card *card, + unsigned int max_dtr, int host_drv, + int card_drv, int *drv_type); + /*****************************************************************************\ * * * Hardware specific quirk handling * @@ -390,6 +398,45 @@ static int byt_sd_probe_slot(struct sdhci_pci_slot *slot) return 0; } +#define SDHCI_INTEL_PWR_TIMEOUT_CNT 20 +#define SDHCI_INTEL_PWR_TIMEOUT_UDELAY 100 + +static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) +{ + int cntr; + u8 reg; + + sdhci_set_power(host, mode, vdd); + + if (mode == MMC_POWER_OFF) + return; + + /* + * Bus power might not enable after D3 -> D0 transition due to the + * present state not yet having propagated. Retry for up to 2ms. + */ + for (cntr = 0; cntr < SDHCI_INTEL_PWR_TIMEOUT_CNT; cntr++) { + reg = sdhci_readb(host, SDHCI_POWER_CONTROL); + if (reg & SDHCI_POWER_ON) + break; + udelay(SDHCI_INTEL_PWR_TIMEOUT_UDELAY); + reg |= SDHCI_POWER_ON; + sdhci_writeb(host, reg, SDHCI_POWER_CONTROL); + } +} + +static const struct sdhci_ops sdhci_intel_byt_ops = { + .set_clock = sdhci_set_clock, + .set_power = sdhci_intel_set_power, + .enable_dma = sdhci_pci_enable_dma, + .set_bus_width = sdhci_pci_set_bus_width, + .reset = sdhci_reset, + .set_uhs_signaling = sdhci_set_uhs_signaling, + .hw_reset = sdhci_pci_hw_reset, + .select_drive_strength = sdhci_pci_select_drive_strength, +}; + static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = { .allow_runtime_pm = true, .probe_slot = byt_emmc_probe_slot, @@ -397,6 +444,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = { .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 | SDHCI_QUIRK2_STOP_WITH_TC, + .ops = &sdhci_intel_byt_ops, }; static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = { @@ -405,6 +453,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = { SDHCI_QUIRK2_PRESET_VALUE_BROKEN, .allow_runtime_pm = true, .probe_slot = byt_sdio_probe_slot, + .ops = &sdhci_intel_byt_ops, }; static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { @@ -415,6 +464,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { .allow_runtime_pm = true, .own_cd_for_runtime_pm = true, .probe_slot = byt_sd_probe_slot, + .ops = &sdhci_intel_byt_ops, }; /* Define Host controllers for Intel Merrifield platform */ @@ -1648,7 +1698,9 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot( } host->hw_name = "PCI"; - host->ops = &sdhci_pci_ops; + host->ops = chip->fixes && chip->fixes->ops ? + chip->fixes->ops : + &sdhci_pci_ops; host->quirks = chip->quirks; host->quirks2 = chip->quirks2; diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h index 9c7c08b93223..6bccf56bc5ff 100644 --- a/drivers/mmc/host/sdhci-pci.h +++ b/drivers/mmc/host/sdhci-pci.h @@ -65,6 +65,8 @@ struct sdhci_pci_fixes { int (*suspend) (struct sdhci_pci_chip *); int (*resume) (struct sdhci_pci_chip *); + + const struct sdhci_ops *ops; }; struct sdhci_pci_slot { diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index dd1938d341f7..d0f5c05fbc19 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -315,7 +315,7 @@ static void pxav3_set_power(struct sdhci_host *host, unsigned char mode, struct mmc_host *mmc = host->mmc; u8 pwr = host->pwr; - sdhci_set_power(host, mode, vdd); + sdhci_set_power_noreg(host, mode, vdd); if (host->pwr == pwr) return; diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 48055666c655..71654b90227f 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -687,7 +687,7 @@ static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd) * host->clock is in Hz. target_timeout is in us. * Hence, us = 1000000 * cycles / Hz. Round up. */ - val = 1000000 * data->timeout_clks; + val = 1000000ULL * data->timeout_clks; if (do_div(val, host->clock)) target_timeout++; target_timeout += val; @@ -1077,6 +1077,10 @@ void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) /* Initially, a command has no error */ cmd->error = 0; + if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) && + cmd->opcode == MMC_STOP_TRANSMISSION) + cmd->flags |= MMC_RSP_BUSY; + /* Wait max 10 ms */ timeout = 10; @@ -1390,8 +1394,8 @@ static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode, sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); } -void sdhci_set_power(struct sdhci_host *host, unsigned char mode, - unsigned short vdd) +void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) { u8 pwr = 0; @@ -1455,20 +1459,17 @@ void sdhci_set_power(struct sdhci_host *host, unsigned char mode, mdelay(10); } } -EXPORT_SYMBOL_GPL(sdhci_set_power); +EXPORT_SYMBOL_GPL(sdhci_set_power_noreg); -static void __sdhci_set_power(struct sdhci_host *host, unsigned char mode, - unsigned short vdd) +void sdhci_set_power(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) { - struct mmc_host *mmc = host->mmc; - - if (host->ops->set_power) - host->ops->set_power(host, mode, vdd); - else if (!IS_ERR(mmc->supply.vmmc)) - sdhci_set_power_reg(host, mode, vdd); + if (IS_ERR(host->mmc->supply.vmmc)) + sdhci_set_power_noreg(host, mode, vdd); else - sdhci_set_power(host, mode, vdd); + sdhci_set_power_reg(host, mode, vdd); } +EXPORT_SYMBOL_GPL(sdhci_set_power); /*****************************************************************************\ * * @@ -1609,7 +1610,10 @@ static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) } } - __sdhci_set_power(host, ios->power_mode, ios->vdd); + if (host->ops->set_power) + host->ops->set_power(host, ios->power_mode, ios->vdd); + else + sdhci_set_power(host, ios->power_mode, ios->vdd); if (host->ops->platform_send_init_74_clocks) host->ops->platform_send_init_74_clocks(host, ios->power_mode); @@ -2409,7 +2413,7 @@ static void sdhci_timeout_data_timer(unsigned long data) * * \*****************************************************************************/ -static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *mask) +static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask) { if (!host->cmd) { /* @@ -2453,11 +2457,6 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *mask) return; } - if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) && - !(host->cmd->flags & MMC_RSP_BUSY) && !host->data && - host->cmd->opcode == MMC_STOP_TRANSMISSION) - *mask &= ~SDHCI_INT_DATA_END; - if (intmask & SDHCI_INT_RESPONSE) sdhci_finish_command(host); } @@ -2680,8 +2679,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) } if (intmask & SDHCI_INT_CMD_MASK) - sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, - &intmask); + sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK); if (intmask & SDHCI_INT_DATA_MASK) sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK); diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index c722cd23205c..766df17fb7eb 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -683,6 +683,8 @@ u16 sdhci_calc_clk(struct sdhci_host *host, unsigned int clock, void sdhci_set_clock(struct sdhci_host *host, unsigned int clock); void sdhci_set_power(struct sdhci_host *host, unsigned char mode, unsigned short vdd); +void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode, + unsigned short vdd); void sdhci_set_bus_width(struct sdhci_host *host, int width); void sdhci_reset(struct sdhci_host *host, u8 mask); void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing); diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 329381a28edf..79e679d12f3b 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -554,7 +554,7 @@ int nvme_identify_ctrl(struct nvme_ctrl *dev, struct nvme_id_ctrl **id) /* gcc-4.4.4 (at least) has issues with initializers and anon unions */ c.identify.opcode = nvme_admin_identify; - c.identify.cns = cpu_to_le32(1); + c.identify.cns = cpu_to_le32(NVME_ID_CNS_CTRL); *id = kmalloc(sizeof(struct nvme_id_ctrl), GFP_KERNEL); if (!*id) @@ -572,7 +572,7 @@ static int nvme_identify_ns_list(struct nvme_ctrl *dev, unsigned nsid, __le32 *n struct nvme_command c = { }; c.identify.opcode = nvme_admin_identify; - c.identify.cns = cpu_to_le32(2); + c.identify.cns = cpu_to_le32(NVME_ID_CNS_NS_ACTIVE_LIST); c.identify.nsid = cpu_to_le32(nsid); return nvme_submit_sync_cmd(dev->admin_q, &c, ns_list, 0x1000); } @@ -900,9 +900,9 @@ static int nvme_revalidate_ns(struct nvme_ns *ns, struct nvme_id_ns **id) return -ENODEV; } - if (ns->ctrl->vs >= NVME_VS(1, 1)) + if (ns->ctrl->vs >= NVME_VS(1, 1, 0)) memcpy(ns->eui, (*id)->eui64, sizeof(ns->eui)); - if (ns->ctrl->vs >= NVME_VS(1, 2)) + if (ns->ctrl->vs >= NVME_VS(1, 2, 0)) memcpy(ns->uuid, (*id)->nguid, sizeof(ns->uuid)); return 0; @@ -1086,6 +1086,8 @@ static int nvme_wait_ready(struct nvme_ctrl *ctrl, u64 cap, bool enabled) int ret; while ((ret = ctrl->ops->reg_read32(ctrl, NVME_REG_CSTS, &csts)) == 0) { + if (csts == ~0) + return -ENODEV; if ((csts & NVME_CSTS_RDY) == bit) break; @@ -1240,7 +1242,7 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) } page_shift = NVME_CAP_MPSMIN(cap) + 12; - if (ctrl->vs >= NVME_VS(1, 1)) + if (ctrl->vs >= NVME_VS(1, 1, 0)) ctrl->subsystem = NVME_CAP_NSSRC(cap); ret = nvme_identify_ctrl(ctrl, &id); @@ -1840,7 +1842,7 @@ static void nvme_scan_work(struct work_struct *work) return; nn = le32_to_cpu(id->nn); - if (ctrl->vs >= NVME_VS(1, 1) && + if (ctrl->vs >= NVME_VS(1, 1, 0) && !(ctrl->quirks & NVME_QUIRK_IDENTIFY_CNS)) { if (!nvme_scan_ns_list(ctrl, nn)) goto done; diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 0fc99f0f2571..0248d0e21fee 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -99,6 +99,7 @@ struct nvme_dev { dma_addr_t cmb_dma_addr; u64 cmb_size; u32 cmbsz; + u32 cmbloc; struct nvme_ctrl ctrl; struct completion ioq_wait; }; @@ -893,7 +894,7 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) "I/O %d QID %d timeout, reset controller\n", req->tag, nvmeq->qid); nvme_dev_disable(dev, false); - queue_work(nvme_workq, &dev->reset_work); + nvme_reset(dev); /* * Mark the request as handled, since the inline shutdown @@ -1214,7 +1215,7 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev) u64 cap = lo_hi_readq(dev->bar + NVME_REG_CAP); struct nvme_queue *nvmeq; - dev->subsystem = readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 1) ? + dev->subsystem = readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 1, 0) ? NVME_CAP_NSSRC(cap) : 0; if (dev->subsystem && @@ -1291,7 +1292,7 @@ static void nvme_watchdog_timer(unsigned long data) /* Skip controllers under certain specific conditions. */ if (nvme_should_reset(dev, csts)) { - if (queue_work(nvme_workq, &dev->reset_work)) + if (!nvme_reset(dev)) dev_warn(dev->dev, "Failed status: 0x%x, reset controller.\n", csts); @@ -1331,28 +1332,37 @@ static int nvme_create_io_queues(struct nvme_dev *dev) return ret >= 0 ? 0 : ret; } +static ssize_t nvme_cmb_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct nvme_dev *ndev = to_nvme_dev(dev_get_drvdata(dev)); + + return snprintf(buf, PAGE_SIZE, "cmbloc : x%08x\ncmbsz : x%08x\n", + ndev->cmbloc, ndev->cmbsz); +} +static DEVICE_ATTR(cmb, S_IRUGO, nvme_cmb_show, NULL); + static void __iomem *nvme_map_cmb(struct nvme_dev *dev) { u64 szu, size, offset; - u32 cmbloc; resource_size_t bar_size; struct pci_dev *pdev = to_pci_dev(dev->dev); void __iomem *cmb; dma_addr_t dma_addr; - if (!use_cmb_sqes) - return NULL; - dev->cmbsz = readl(dev->bar + NVME_REG_CMBSZ); if (!(NVME_CMB_SZ(dev->cmbsz))) return NULL; + dev->cmbloc = readl(dev->bar + NVME_REG_CMBLOC); - cmbloc = readl(dev->bar + NVME_REG_CMBLOC); + if (!use_cmb_sqes) + return NULL; szu = (u64)1 << (12 + 4 * NVME_CMB_SZU(dev->cmbsz)); size = szu * NVME_CMB_SZ(dev->cmbsz); - offset = szu * NVME_CMB_OFST(cmbloc); - bar_size = pci_resource_len(pdev, NVME_CMB_BIR(cmbloc)); + offset = szu * NVME_CMB_OFST(dev->cmbloc); + bar_size = pci_resource_len(pdev, NVME_CMB_BIR(dev->cmbloc)); if (offset > bar_size) return NULL; @@ -1365,7 +1375,7 @@ static void __iomem *nvme_map_cmb(struct nvme_dev *dev) if (size > bar_size - offset) size = bar_size - offset; - dma_addr = pci_resource_start(pdev, NVME_CMB_BIR(cmbloc)) + offset; + dma_addr = pci_resource_start(pdev, NVME_CMB_BIR(dev->cmbloc)) + offset; cmb = ioremap_wc(dma_addr, size); if (!cmb) return NULL; @@ -1511,9 +1521,9 @@ static int nvme_delete_queue(struct nvme_queue *nvmeq, u8 opcode) return 0; } -static void nvme_disable_io_queues(struct nvme_dev *dev) +static void nvme_disable_io_queues(struct nvme_dev *dev, int queues) { - int pass, queues = dev->online_queues - 1; + int pass; unsigned long timeout; u8 opcode = nvme_admin_delete_sq; @@ -1616,9 +1626,25 @@ static int nvme_pci_enable(struct nvme_dev *dev) dev->q_depth); } - if (readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 2)) + /* + * CMBs can currently only exist on >=1.2 PCIe devices. We only + * populate sysfs if a CMB is implemented. Note that we add the + * CMB attribute to the nvme_ctrl kobj which removes the need to remove + * it on exit. Since nvme_dev_attrs_group has no name we can pass + * NULL as final argument to sysfs_add_file_to_group. + */ + + if (readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 2, 0)) { dev->cmb = nvme_map_cmb(dev); + if (dev->cmbsz) { + if (sysfs_add_file_to_group(&dev->ctrl.device->kobj, + &dev_attr_cmb.attr, NULL)) + dev_warn(dev->dev, + "failed to add sysfs attribute for CMB\n"); + } + } + pci_enable_pcie_error_reporting(pdev); pci_save_state(pdev); return 0; @@ -1649,7 +1675,7 @@ static void nvme_pci_disable(struct nvme_dev *dev) static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown) { - int i; + int i, queues; u32 csts = -1; del_timer_sync(&dev->watchdog_timer); @@ -1660,6 +1686,7 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown) csts = readl(dev->bar + NVME_REG_CSTS); } + queues = dev->online_queues - 1; for (i = dev->queue_count - 1; i > 0; i--) nvme_suspend_queue(dev->queues[i]); @@ -1671,7 +1698,7 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown) if (dev->queue_count) nvme_suspend_queue(dev->queues[0]); } else { - nvme_disable_io_queues(dev); + nvme_disable_io_queues(dev, queues); nvme_disable_admin_queue(dev, shutdown); } nvme_pci_disable(dev); @@ -1818,11 +1845,10 @@ static int nvme_reset(struct nvme_dev *dev) { if (!dev->ctrl.admin_q || blk_queue_dying(dev->ctrl.admin_q)) return -ENODEV; - + if (work_busy(&dev->reset_work)) + return -ENODEV; if (!queue_work(nvme_workq, &dev->reset_work)) return -EBUSY; - - flush_work(&dev->reset_work); return 0; } @@ -1846,7 +1872,12 @@ static int nvme_pci_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val) static int nvme_pci_reset_ctrl(struct nvme_ctrl *ctrl) { - return nvme_reset(to_nvme_dev(ctrl)); + struct nvme_dev *dev = to_nvme_dev(ctrl); + int ret = nvme_reset(dev); + + if (!ret) + flush_work(&dev->reset_work); + return ret; } static const struct nvme_ctrl_ops nvme_pci_ctrl_ops = { @@ -1940,7 +1971,7 @@ static void nvme_reset_notify(struct pci_dev *pdev, bool prepare) if (prepare) nvme_dev_disable(dev, false); else - queue_work(nvme_workq, &dev->reset_work); + nvme_reset(dev); } static void nvme_shutdown(struct pci_dev *pdev) @@ -2009,7 +2040,7 @@ static int nvme_resume(struct device *dev) struct pci_dev *pdev = to_pci_dev(dev); struct nvme_dev *ndev = pci_get_drvdata(pdev); - queue_work(nvme_workq, &ndev->reset_work); + nvme_reset(ndev); return 0; } #endif @@ -2048,7 +2079,7 @@ static pci_ers_result_t nvme_slot_reset(struct pci_dev *pdev) dev_info(dev->ctrl.device, "restart after slot reset\n"); pci_restore_state(pdev); - queue_work(nvme_workq, &dev->reset_work); + nvme_reset(dev); return PCI_ERS_RESULT_RECOVERED; } diff --git a/drivers/nvme/host/scsi.c b/drivers/nvme/host/scsi.c index c2a0a1c7d05d..3eaa4d27801e 100644 --- a/drivers/nvme/host/scsi.c +++ b/drivers/nvme/host/scsi.c @@ -606,7 +606,7 @@ static int nvme_fill_device_id_eui64(struct nvme_ns *ns, struct sg_io_hdr *hdr, eui = id_ns->eui64; len = sizeof(id_ns->eui64); - if (ns->ctrl->vs >= NVME_VS(1, 2)) { + if (ns->ctrl->vs >= NVME_VS(1, 2, 0)) { if (bitmap_empty(eui, len * 8)) { eui = id_ns->nguid; len = sizeof(id_ns->nguid); @@ -679,7 +679,7 @@ static int nvme_trans_device_id_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, { int res; - if (ns->ctrl->vs >= NVME_VS(1, 1)) { + if (ns->ctrl->vs >= NVME_VS(1, 1, 0)) { res = nvme_fill_device_id_eui64(ns, hdr, resp, alloc_len); if (res != -EOPNOTSUPP) return res; diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index 7ab9c9381b98..6fe4c48a21e4 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -199,7 +199,7 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req) */ /* we support multiple ports and multiples hosts: */ - id->mic = (1 << 0) | (1 << 1); + id->cmic = (1 << 0) | (1 << 1); /* no limit on data transfer sizes for now */ id->mdts = 0; @@ -511,13 +511,13 @@ int nvmet_parse_admin_cmd(struct nvmet_req *req) case nvme_admin_identify: req->data_len = 4096; switch (le32_to_cpu(cmd->identify.cns)) { - case 0x00: + case NVME_ID_CNS_NS: req->execute = nvmet_execute_identify_ns; return 0; - case 0x01: + case NVME_ID_CNS_CTRL: req->execute = nvmet_execute_identify_ctrl; return 0; - case 0x02: + case NVME_ID_CNS_NS_ACTIVE_LIST: req->execute = nvmet_execute_identify_nslist; return 0; } diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 6559d5afa7bf..b4cacb6f0258 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -882,7 +882,7 @@ struct nvmet_subsys *nvmet_subsys_alloc(const char *subsysnqn, if (!subsys) return NULL; - subsys->ver = (1 << 16) | (2 << 8) | 1; /* NVMe 1.2.1 */ + subsys->ver = NVME_VS(1, 2, 1); /* NVMe 1.2.1 */ switch (type) { case NVME_NQN_NVME: diff --git a/drivers/nvme/target/discovery.c b/drivers/nvme/target/discovery.c index 6f65646e89cf..12f39eea569f 100644 --- a/drivers/nvme/target/discovery.c +++ b/drivers/nvme/target/discovery.c @@ -54,7 +54,7 @@ static void nvmet_format_discovery_entry(struct nvmf_disc_rsp_page_hdr *hdr, /* we support only dynamic controllers */ e->cntlid = cpu_to_le16(NVME_CNTLID_DYNAMIC); e->asqsz = cpu_to_le16(NVMF_AQ_DEPTH); - e->nqntype = type; + e->subtype = type; memcpy(e->trsvcid, port->disc_addr.trsvcid, NVMF_TRSVCID_SIZE); memcpy(e->traddr, port->disc_addr.traddr, NVMF_TRADDR_SIZE); memcpy(e->tsas.common, port->disc_addr.tsas.common, NVMF_TSAS_SIZE); @@ -187,7 +187,7 @@ int nvmet_parse_discovery_cmd(struct nvmet_req *req) case nvme_admin_identify: req->data_len = 4096; switch (le32_to_cpu(cmd->identify.cns)) { - case 0x01: + case NVME_ID_CNS_CTRL: req->execute = nvmet_execute_identify_disc_ctrl; return 0; diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c index 2cb7315e26d0..653707996342 100644 --- a/drivers/pci/host/pci-layerscape.c +++ b/drivers/pci/host/pci-layerscape.c @@ -247,6 +247,7 @@ static int __init ls_pcie_probe(struct platform_device *pdev) pp = &pcie->pp; pp->dev = dev; + pcie->drvdata = match->data; pp->ops = pcie->drvdata->ops; dbi_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); @@ -256,7 +257,6 @@ static int __init ls_pcie_probe(struct platform_device *pdev) return PTR_ERR(pcie->pp.dbi_base); } - pcie->drvdata = match->data; pcie->lut = pcie->pp.dbi_base + pcie->drvdata->lut_offset; if (!ls_pcie_is_bridge(pcie)) diff --git a/drivers/pci/host/pcie-designware-plat.c b/drivers/pci/host/pcie-designware-plat.c index 537f58a664fa..8df6312ed300 100644 --- a/drivers/pci/host/pcie-designware-plat.c +++ b/drivers/pci/host/pcie-designware-plat.c @@ -3,7 +3,7 @@ * * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com) * - * Authors: Joao Pinto <jpinto@synopsys.com> + * Authors: Joao Pinto <jpmpinto@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c index c2ac7646b99f..a8ac4bcef2c0 100644 --- a/drivers/perf/xgene_pmu.c +++ b/drivers/perf/xgene_pmu.c @@ -1011,7 +1011,7 @@ xgene_pmu_dev_ctx *acpi_get_pmu_hw_inf(struct xgene_pmu *xgene_pmu, rc = acpi_dev_get_resources(adev, &resource_list, acpi_pmu_dev_add_resource, &res); acpi_dev_free_resource_list(&resource_list); - if (rc < 0 || IS_ERR(&res)) { + if (rc < 0) { dev_err(dev, "PMU type %d: No resource address found\n", type); goto err; } diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c index e1ab864e1a7f..c8c72e8259d3 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c @@ -151,21 +151,21 @@ FUNC_GROUP_DECL(GPID0, F19, E21); #define GPID2_DESC SIG_DESC_SET(SCU8C, 9) -#define D20 26 +#define F20 26 SIG_EXPR_LIST_DECL_SINGLE(SD2DAT0, SD2, SD2_DESC); SIG_EXPR_DECL(GPID2IN, GPID2, GPID2_DESC); SIG_EXPR_DECL(GPID2IN, GPID, GPID_DESC); SIG_EXPR_LIST_DECL_DUAL(GPID2IN, GPID2, GPID); -MS_PIN_DECL(D20, GPIOD2, SD2DAT0, GPID2IN); +MS_PIN_DECL(F20, GPIOD2, SD2DAT0, GPID2IN); -#define D21 27 +#define D20 27 SIG_EXPR_LIST_DECL_SINGLE(SD2DAT1, SD2, SD2_DESC); SIG_EXPR_DECL(GPID2OUT, GPID2, GPID2_DESC); SIG_EXPR_DECL(GPID2OUT, GPID, GPID_DESC); SIG_EXPR_LIST_DECL_DUAL(GPID2OUT, GPID2, GPID); -MS_PIN_DECL(D21, GPIOD3, SD2DAT1, GPID2OUT); +MS_PIN_DECL(D20, GPIOD3, SD2DAT1, GPID2OUT); -FUNC_GROUP_DECL(GPID2, D20, D21); +FUNC_GROUP_DECL(GPID2, F20, D20); #define GPIE_DESC SIG_DESC_SET(HW_STRAP1, 21) #define GPIE0_DESC SIG_DESC_SET(SCU8C, 12) @@ -182,28 +182,88 @@ SIG_EXPR_LIST_DECL_SINGLE(NDCD3, NDCD3, SIG_DESC_SET(SCU80, 17)); SIG_EXPR_DECL(GPIE0OUT, GPIE0, GPIE0_DESC); SIG_EXPR_DECL(GPIE0OUT, GPIE, GPIE_DESC); SIG_EXPR_LIST_DECL_DUAL(GPIE0OUT, GPIE0, GPIE); -MS_PIN_DECL(C20, GPIE0, NDCD3, GPIE0OUT); +MS_PIN_DECL(C20, GPIOE1, NDCD3, GPIE0OUT); FUNC_GROUP_DECL(GPIE0, B20, C20); -#define SPI1_DESC SIG_DESC_SET(HW_STRAP1, 13) +#define SPI1_DESC { HW_STRAP1, GENMASK(13, 12), 1, 0 } +#define SPI1DEBUG_DESC { HW_STRAP1, GENMASK(13, 12), 2, 0 } +#define SPI1PASSTHRU_DESC { HW_STRAP1, GENMASK(13, 12), 3, 0 } + #define C18 64 -SIG_EXPR_LIST_DECL_SINGLE(SYSCS, SPI1, COND1, SPI1_DESC); +SIG_EXPR_DECL(SYSCS, SPI1DEBUG, COND1, SPI1DEBUG_DESC); +SIG_EXPR_DECL(SYSCS, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC); +SIG_EXPR_LIST_DECL_DUAL(SYSCS, SPI1DEBUG, SPI1PASSTHRU); SS_PIN_DECL(C18, GPIOI0, SYSCS); #define E15 65 -SIG_EXPR_LIST_DECL_SINGLE(SYSCK, SPI1, COND1, SPI1_DESC); +SIG_EXPR_DECL(SYSCK, SPI1DEBUG, COND1, SPI1DEBUG_DESC); +SIG_EXPR_DECL(SYSCK, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC); +SIG_EXPR_LIST_DECL_DUAL(SYSCK, SPI1DEBUG, SPI1PASSTHRU); SS_PIN_DECL(E15, GPIOI1, SYSCK); -#define A14 66 -SIG_EXPR_LIST_DECL_SINGLE(SYSMOSI, SPI1, COND1, SPI1_DESC); -SS_PIN_DECL(A14, GPIOI2, SYSMOSI); +#define B16 66 +SIG_EXPR_DECL(SYSMOSI, SPI1DEBUG, COND1, SPI1DEBUG_DESC); +SIG_EXPR_DECL(SYSMOSI, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC); +SIG_EXPR_LIST_DECL_DUAL(SYSMOSI, SPI1DEBUG, SPI1PASSTHRU); +SS_PIN_DECL(B16, GPIOI2, SYSMOSI); #define C16 67 -SIG_EXPR_LIST_DECL_SINGLE(SYSMISO, SPI1, COND1, SPI1_DESC); +SIG_EXPR_DECL(SYSMISO, SPI1DEBUG, COND1, SPI1DEBUG_DESC); +SIG_EXPR_DECL(SYSMISO, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC); +SIG_EXPR_LIST_DECL_DUAL(SYSMISO, SPI1DEBUG, SPI1PASSTHRU); SS_PIN_DECL(C16, GPIOI3, SYSMISO); -FUNC_GROUP_DECL(SPI1, C18, E15, A14, C16); +#define VB_DESC SIG_DESC_SET(HW_STRAP1, 5) + +#define B15 68 +SIG_EXPR_DECL(SPI1CS0, SPI1, COND1, SPI1_DESC); +SIG_EXPR_DECL(SPI1CS0, SPI1DEBUG, COND1, SPI1DEBUG_DESC); +SIG_EXPR_DECL(SPI1CS0, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC); +SIG_EXPR_LIST_DECL(SPI1CS0, SIG_EXPR_PTR(SPI1CS0, SPI1), + SIG_EXPR_PTR(SPI1CS0, SPI1DEBUG), + SIG_EXPR_PTR(SPI1CS0, SPI1PASSTHRU)); +SIG_EXPR_LIST_DECL_SINGLE(VBCS, VGABIOSROM, COND1, VB_DESC); +MS_PIN_DECL(B15, GPIOI4, SPI1CS0, VBCS); + +#define C15 69 +SIG_EXPR_DECL(SPI1CK, SPI1, COND1, SPI1_DESC); +SIG_EXPR_DECL(SPI1CK, SPI1DEBUG, COND1, SPI1DEBUG_DESC); +SIG_EXPR_DECL(SPI1CK, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC); +SIG_EXPR_LIST_DECL(SPI1CK, SIG_EXPR_PTR(SPI1CK, SPI1), + SIG_EXPR_PTR(SPI1CK, SPI1DEBUG), + SIG_EXPR_PTR(SPI1CK, SPI1PASSTHRU)); +SIG_EXPR_LIST_DECL_SINGLE(VBCK, VGABIOSROM, COND1, VB_DESC); +MS_PIN_DECL(C15, GPIOI5, SPI1CK, VBCK); + +#define A14 70 +SIG_EXPR_DECL(SPI1MOSI, SPI1, COND1, SPI1_DESC); +SIG_EXPR_DECL(SPI1MOSI, SPI1DEBUG, COND1, SPI1DEBUG_DESC); +SIG_EXPR_DECL(SPI1MOSI, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC); +SIG_EXPR_LIST_DECL(SPI1MOSI, SIG_EXPR_PTR(SPI1MOSI, SPI1), + SIG_EXPR_PTR(SPI1MOSI, SPI1DEBUG), + SIG_EXPR_PTR(SPI1MOSI, SPI1PASSTHRU)); +SIG_EXPR_LIST_DECL_SINGLE(VBMOSI, VGABIOSROM, COND1, VB_DESC); +MS_PIN_DECL(A14, GPIOI6, SPI1MOSI, VBMOSI); + +#define A15 71 +SIG_EXPR_DECL(SPI1MISO, SPI1, COND1, SPI1_DESC); +SIG_EXPR_DECL(SPI1MISO, SPI1DEBUG, COND1, SPI1DEBUG_DESC); +SIG_EXPR_DECL(SPI1MISO, SPI1PASSTHRU, COND1, SPI1PASSTHRU_DESC); +SIG_EXPR_LIST_DECL(SPI1MISO, SIG_EXPR_PTR(SPI1MISO, SPI1), + SIG_EXPR_PTR(SPI1MISO, SPI1DEBUG), + SIG_EXPR_PTR(SPI1MISO, SPI1PASSTHRU)); +SIG_EXPR_LIST_DECL_SINGLE(VBMISO, VGABIOSROM, COND1, VB_DESC); +MS_PIN_DECL(A15, GPIOI7, SPI1MISO, VBMISO); + +FUNC_GROUP_DECL(SPI1, B15, C15, A14, A15); +FUNC_GROUP_DECL(SPI1DEBUG, C18, E15, B16, C16, B15, C15, A14, A15); +FUNC_GROUP_DECL(SPI1PASSTHRU, C18, E15, B16, C16, B15, C15, A14, A15); +FUNC_GROUP_DECL(VGABIOSROM, B15, C15, A14, A15); + +#define R2 72 +SIG_EXPR_LIST_DECL_SINGLE(SGPMCK, SGPM, SIG_DESC_SET(SCU84, 8)); +SS_PIN_DECL(R2, GPIOJ0, SGPMCK); #define L2 73 SIG_EXPR_LIST_DECL_SINGLE(SGPMLD, SGPM, SIG_DESC_SET(SCU84, 9)); @@ -580,6 +640,7 @@ static struct pinctrl_pin_desc aspeed_g5_pins[ASPEED_G5_NR_PINS] = { ASPEED_PINCTRL_PIN(A12), ASPEED_PINCTRL_PIN(A13), ASPEED_PINCTRL_PIN(A14), + ASPEED_PINCTRL_PIN(A15), ASPEED_PINCTRL_PIN(A2), ASPEED_PINCTRL_PIN(A3), ASPEED_PINCTRL_PIN(A4), @@ -592,6 +653,8 @@ static struct pinctrl_pin_desc aspeed_g5_pins[ASPEED_G5_NR_PINS] = { ASPEED_PINCTRL_PIN(B12), ASPEED_PINCTRL_PIN(B13), ASPEED_PINCTRL_PIN(B14), + ASPEED_PINCTRL_PIN(B15), + ASPEED_PINCTRL_PIN(B16), ASPEED_PINCTRL_PIN(B2), ASPEED_PINCTRL_PIN(B20), ASPEED_PINCTRL_PIN(B3), @@ -603,6 +666,7 @@ static struct pinctrl_pin_desc aspeed_g5_pins[ASPEED_G5_NR_PINS] = { ASPEED_PINCTRL_PIN(C12), ASPEED_PINCTRL_PIN(C13), ASPEED_PINCTRL_PIN(C14), + ASPEED_PINCTRL_PIN(C15), ASPEED_PINCTRL_PIN(C16), ASPEED_PINCTRL_PIN(C18), ASPEED_PINCTRL_PIN(C2), @@ -614,7 +678,6 @@ static struct pinctrl_pin_desc aspeed_g5_pins[ASPEED_G5_NR_PINS] = { ASPEED_PINCTRL_PIN(D10), ASPEED_PINCTRL_PIN(D2), ASPEED_PINCTRL_PIN(D20), - ASPEED_PINCTRL_PIN(D21), ASPEED_PINCTRL_PIN(D4), ASPEED_PINCTRL_PIN(D5), ASPEED_PINCTRL_PIN(D6), @@ -630,6 +693,7 @@ static struct pinctrl_pin_desc aspeed_g5_pins[ASPEED_G5_NR_PINS] = { ASPEED_PINCTRL_PIN(E7), ASPEED_PINCTRL_PIN(E9), ASPEED_PINCTRL_PIN(F19), + ASPEED_PINCTRL_PIN(F20), ASPEED_PINCTRL_PIN(F9), ASPEED_PINCTRL_PIN(H20), ASPEED_PINCTRL_PIN(L1), @@ -691,11 +755,14 @@ static const struct aspeed_pin_group aspeed_g5_groups[] = { ASPEED_PINCTRL_GROUP(RMII2), ASPEED_PINCTRL_GROUP(SD1), ASPEED_PINCTRL_GROUP(SPI1), + ASPEED_PINCTRL_GROUP(SPI1DEBUG), + ASPEED_PINCTRL_GROUP(SPI1PASSTHRU), ASPEED_PINCTRL_GROUP(TIMER4), ASPEED_PINCTRL_GROUP(TIMER5), ASPEED_PINCTRL_GROUP(TIMER6), ASPEED_PINCTRL_GROUP(TIMER7), ASPEED_PINCTRL_GROUP(TIMER8), + ASPEED_PINCTRL_GROUP(VGABIOSROM), }; static const struct aspeed_pin_function aspeed_g5_functions[] = { @@ -733,11 +800,14 @@ static const struct aspeed_pin_function aspeed_g5_functions[] = { ASPEED_PINCTRL_FUNC(RMII2), ASPEED_PINCTRL_FUNC(SD1), ASPEED_PINCTRL_FUNC(SPI1), + ASPEED_PINCTRL_FUNC(SPI1DEBUG), + ASPEED_PINCTRL_FUNC(SPI1PASSTHRU), ASPEED_PINCTRL_FUNC(TIMER4), ASPEED_PINCTRL_FUNC(TIMER5), ASPEED_PINCTRL_FUNC(TIMER6), ASPEED_PINCTRL_FUNC(TIMER7), ASPEED_PINCTRL_FUNC(TIMER8), + ASPEED_PINCTRL_FUNC(VGABIOSROM), }; static struct aspeed_pinctrl_data aspeed_g5_pinctrl_data = { diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed.c b/drivers/pinctrl/aspeed/pinctrl-aspeed.c index 0391f9f13f3e..49aeba912531 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed.c @@ -166,13 +166,9 @@ static bool aspeed_sig_expr_set(const struct aspeed_sig_expr *expr, bool enable, struct regmap *map) { int i; - bool ret; - - ret = aspeed_sig_expr_eval(expr, enable, map); - if (ret) - return ret; for (i = 0; i < expr->ndescs; i++) { + bool ret; const struct aspeed_sig_desc *desc = &expr->descs[i]; u32 pattern = enable ? desc->enable : desc->disable; @@ -199,12 +195,18 @@ static bool aspeed_sig_expr_set(const struct aspeed_sig_expr *expr, static bool aspeed_sig_expr_enable(const struct aspeed_sig_expr *expr, struct regmap *map) { + if (aspeed_sig_expr_eval(expr, true, map)) + return true; + return aspeed_sig_expr_set(expr, true, map); } static bool aspeed_sig_expr_disable(const struct aspeed_sig_expr *expr, struct regmap *map) { + if (!aspeed_sig_expr_eval(expr, true, map)) + return true; + return aspeed_sig_expr_set(expr, false, map); } diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c index d22a9fe2e6df..71bbeb9321ba 100644 --- a/drivers/pinctrl/intel/pinctrl-baytrail.c +++ b/drivers/pinctrl/intel/pinctrl-baytrail.c @@ -1808,6 +1808,8 @@ static int byt_pinctrl_probe(struct platform_device *pdev) return PTR_ERR(vg->pctl_dev); } + raw_spin_lock_init(&vg->lock); + ret = byt_gpio_probe(vg); if (ret) { pinctrl_unregister(vg->pctl_dev); @@ -1815,7 +1817,6 @@ static int byt_pinctrl_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, vg); - raw_spin_lock_init(&vg->lock); pm_runtime_enable(&pdev->dev); return 0; diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 63387a40b973..01443762e570 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -19,6 +19,7 @@ #include <linux/pinctrl/pinconf.h> #include <linux/pinctrl/pinconf-generic.h> +#include "../core.h" #include "pinctrl-intel.h" /* Offset from regs */ @@ -1056,6 +1057,26 @@ int intel_pinctrl_remove(struct platform_device *pdev) EXPORT_SYMBOL_GPL(intel_pinctrl_remove); #ifdef CONFIG_PM_SLEEP +static bool intel_pinctrl_should_save(struct intel_pinctrl *pctrl, unsigned pin) +{ + const struct pin_desc *pd = pin_desc_get(pctrl->pctldev, pin); + + if (!pd || !intel_pad_usable(pctrl, pin)) + return false; + + /* + * Only restore the pin if it is actually in use by the kernel (or + * by userspace). It is possible that some pins are used by the + * BIOS during resume and those are not always locked down so leave + * them alone. + */ + if (pd->mux_owner || pd->gpio_owner || + gpiochip_line_is_irq(&pctrl->chip, pin)) + return true; + + return false; +} + int intel_pinctrl_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); @@ -1069,7 +1090,7 @@ int intel_pinctrl_suspend(struct device *dev) const struct pinctrl_pin_desc *desc = &pctrl->soc->pins[i]; u32 val; - if (!intel_pad_usable(pctrl, desc->number)) + if (!intel_pinctrl_should_save(pctrl, desc->number)) continue; val = readl(intel_get_padcfg(pctrl, desc->number, PADCFG0)); @@ -1130,7 +1151,7 @@ int intel_pinctrl_resume(struct device *dev) void __iomem *padcfg; u32 val; - if (!intel_pad_usable(pctrl, desc->number)) + if (!intel_pinctrl_should_save(pctrl, desc->number)) continue; padcfg = intel_get_padcfg(pctrl, desc->number, PADCFG0); diff --git a/drivers/platform/goldfish/goldfish_pipe.c b/drivers/platform/goldfish/goldfish_pipe.c index 07462d79d040..1aba2c74160e 100644 --- a/drivers/platform/goldfish/goldfish_pipe.c +++ b/drivers/platform/goldfish/goldfish_pipe.c @@ -309,7 +309,8 @@ static ssize_t goldfish_pipe_read_write(struct file *filp, char __user *buffer, * much memory to the process. */ down_read(¤t->mm->mmap_sem); - ret = get_user_pages(address, 1, !is_write, 0, &page, NULL); + ret = get_user_pages(address, 1, is_write ? 0 : FOLL_WRITE, + &page, NULL); up_read(¤t->mm->mmap_sem); if (ret < 0) break; diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 81b8dcca8891..b8a21d7b25d4 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -576,6 +576,7 @@ config ASUS_WMI config ASUS_NB_WMI tristate "Asus Notebook WMI Driver" depends on ASUS_WMI + depends on SERIO_I8042 || SERIO_I8042 = n ---help--- This is a driver for newer Asus notebooks. It adds extra features like wireless radio and bluetooth control, leds, hotkeys, backlight... diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index d1a091b93192..a2323941e677 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -933,6 +933,13 @@ static const struct dmi_system_id no_hw_rfkill_list[] = { DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 900"), }, }, + { + .ident = "Lenovo YOGA 910-13IKB", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 910-13IKB"), + }, + }, {} }; diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c index 436dfe871d32..9013a585507e 100644 --- a/drivers/rapidio/devices/rio_mport_cdev.c +++ b/drivers/rapidio/devices/rio_mport_cdev.c @@ -892,7 +892,8 @@ rio_dma_transfer(struct file *filp, u32 transfer_mode, down_read(¤t->mm->mmap_sem); pinned = get_user_pages( (unsigned long)xfer->loc_addr & PAGE_MASK, - nr_pages, dir == DMA_FROM_DEVICE, 0, + nr_pages, + dir == DMA_FROM_DEVICE ? FOLL_WRITE : 0, page_list, NULL); up_read(¤t->mm->mmap_sem); diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index 637cf8973c9e..581001989937 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -384,7 +384,7 @@ void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf, /* if (len > rec_len): * dump data up to cap_len ignoring small duplicate in rec->payload */ - spin_lock_irqsave(&dbf->pay_lock, flags); + spin_lock(&dbf->pay_lock); memset(payload, 0, sizeof(*payload)); memcpy(payload->area, paytag, ZFCP_DBF_TAG_LEN); payload->fsf_req_id = req_id; diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index a8762a3efeef..532474109624 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -2586,7 +2586,6 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd) struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); u32 fd_ioasc; - char *envp[] = { "ASYNC_ERR_LOG=1", NULL }; if (ioa_cfg->sis64) fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); @@ -2607,8 +2606,8 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd) } list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q); + schedule_work(&ioa_cfg->work_q); hostrcb = ipr_get_free_hostrcb(ioa_cfg); - kobject_uevent_env(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE, envp); ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); } diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c index 54d446c9f56e..b8d3b97b217a 100644 --- a/drivers/scsi/scsi_dh.c +++ b/drivers/scsi/scsi_dh.c @@ -36,9 +36,9 @@ struct scsi_dh_blist { }; static const struct scsi_dh_blist scsi_dh_blist[] = { - {"DGC", "RAID", "clariion" }, - {"DGC", "DISK", "clariion" }, - {"DGC", "VRAID", "clariion" }, + {"DGC", "RAID", "emc" }, + {"DGC", "DISK", "emc" }, + {"DGC", "VRAID", "emc" }, {"COMPAQ", "MSA1000 VOLUME", "hp_sw" }, {"COMPAQ", "HSV110", "hp_sw" }, diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 212e98d940bc..6f7128f49c30 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1307,7 +1307,6 @@ static void scsi_sequential_lun_scan(struct scsi_target *starget, static int scsi_report_lun_scan(struct scsi_target *starget, int bflags, enum scsi_scan_mode rescan) { - char devname[64]; unsigned char scsi_cmd[MAX_COMMAND_SIZE]; unsigned int length; u64 lun; @@ -1349,9 +1348,6 @@ static int scsi_report_lun_scan(struct scsi_target *starget, int bflags, } } - sprintf(devname, "host %d channel %d id %d", - shost->host_no, sdev->channel, sdev->id); - /* * Allocate enough to hold the header (the same size as one scsi_lun) * plus the number of luns we are requesting. 511 was the default @@ -1470,12 +1466,12 @@ retry: out_err: kfree(lun_data); out: - scsi_device_put(sdev); if (scsi_device_created(sdev)) /* * the sdev we used didn't appear in the report luns scan */ __scsi_remove_device(sdev); + scsi_device_put(sdev); return ret; } diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 7af5226aa55b..618422ea3a41 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -4922,9 +4922,8 @@ static int sgl_map_user_pages(struct st_buffer *STbp, res = get_user_pages_unlocked( uaddr, nr_pages, - rw == READ, - 0, /* don't force */ - pages); + pages, + rw == READ ? FOLL_WRITE : 0); /* don't force */ /* Errors and no page mapped should return here */ if (res < nr_pages) diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c index c29040fdf9a7..1091b9f1dd07 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c @@ -423,8 +423,7 @@ create_pagelist(char __user *buf, size_t count, unsigned short type, actual_pages = get_user_pages(task, task->mm, (unsigned long)buf & ~(PAGE_SIZE - 1), num_pages, - (type == PAGELIST_READ) /*Write */ , - 0 /*Force */ , + (type == PAGELIST_READ) ? FOLL_WRITE : 0, pages, NULL /*vmas */); up_read(&task->mm->mmap_sem); diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c index e11c0e07471b..7b6cd4d80621 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -1477,8 +1477,7 @@ dump_phys_mem(void *virt_addr, uint32_t num_bytes) current->mm, /* mm */ (unsigned long)virt_addr, /* start */ num_pages, /* len */ - 0, /* write */ - 0, /* force */ + 0, /* gup_flags */ pages, /* pages (array of page pointers) */ NULL); /* vmas */ up_read(¤t->mm->mmap_sem); diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c index 3b1ca4411073..a2564ab91e62 100644 --- a/drivers/video/fbdev/pvr2fb.c +++ b/drivers/video/fbdev/pvr2fb.c @@ -686,8 +686,8 @@ static ssize_t pvr2fb_write(struct fb_info *info, const char *buf, if (!pages) return -ENOMEM; - ret = get_user_pages_unlocked((unsigned long)buf, nr_pages, WRITE, - 0, pages); + ret = get_user_pages_unlocked((unsigned long)buf, nr_pages, pages, + FOLL_WRITE); if (ret < nr_pages) { nr_pages = ret; diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c index 60bdad3a689b..150ce2abf6c8 100644 --- a/drivers/virt/fsl_hypervisor.c +++ b/drivers/virt/fsl_hypervisor.c @@ -245,8 +245,8 @@ static long ioctl_memcpy(struct fsl_hv_ioctl_memcpy __user *p) /* Get the physical addresses of the source buffer */ down_read(¤t->mm->mmap_sem); num_pinned = get_user_pages(param.local_vaddr - lb_offset, - num_pages, (param.source == -1) ? READ : WRITE, - 0, pages, NULL); + num_pages, (param.source == -1) ? 0 : FOLL_WRITE, + pages, NULL); up_read(¤t->mm->mmap_sem); if (num_pinned != num_pages) { diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c index e473e3b23720..6d1fbda0f461 100644 --- a/drivers/watchdog/wdat_wdt.c +++ b/drivers/watchdog/wdat_wdt.c @@ -499,6 +499,10 @@ static int wdat_wdt_resume_noirq(struct device *dev) ret = wdat_wdt_enable_reboot(wdat); if (ret) return ret; + + ret = wdat_wdt_ping(&wdat->wdd); + if (ret) + return ret; } return wdat_wdt_start(&wdat->wdd); diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 7bf08825cc11..18630e800208 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1272,7 +1272,8 @@ again: statret = __ceph_do_getattr(inode, page, CEPH_STAT_CAP_INLINE_DATA, !!page); if (statret < 0) { - __free_page(page); + if (page) + __free_page(page); if (statret == -ENODATA) { BUG_ON(retry_op != READ_INLINE); goto again; diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index bca1b49c1c4b..ef4d04647325 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -1511,7 +1511,8 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req, ceph_fill_dirfrag(d_inode(parent), rinfo->dir_dir); } - if (ceph_frag_is_leftmost(frag) && req->r_readdir_offset == 2) { + if (ceph_frag_is_leftmost(frag) && req->r_readdir_offset == 2 && + !(rinfo->hash_order && req->r_path2)) { /* note dir version at start of readdir so we can tell * if any dentries get dropped */ req->r_dir_release_cnt = atomic64_read(&ci->i_release_count); diff --git a/fs/ceph/super.c b/fs/ceph/super.c index a29ffce98187..b382e5910eea 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -845,6 +845,8 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc) err = ceph_fs_debugfs_init(fsc); if (err < 0) goto fail; + } else { + root = dget(fsc->sb->s_root); } fsc->mount_state = CEPH_MOUNT_MOUNTED; diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 40b703217977..febc28f9e2c2 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -16,7 +16,7 @@ static int __remove_xattr(struct ceph_inode_info *ci, struct ceph_inode_xattr *xattr); -const struct xattr_handler ceph_other_xattr_handler; +static const struct xattr_handler ceph_other_xattr_handler; /* * List of handlers for synthetic system.* attributes. Other @@ -1086,7 +1086,7 @@ static int ceph_set_xattr_handler(const struct xattr_handler *handler, return __ceph_setxattr(inode, name, value, size, flags); } -const struct xattr_handler ceph_other_xattr_handler = { +static const struct xattr_handler ceph_other_xattr_handler = { .prefix = "", /* match any name => handlers called with full name */ .get = ceph_get_xattr_handler, .set = ceph_set_xattr_handler, diff --git a/fs/exec.c b/fs/exec.c index 6fcfb3f7b137..4e497b9ee71e 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -191,6 +191,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, { struct page *page; int ret; + unsigned int gup_flags = FOLL_FORCE; #ifdef CONFIG_STACK_GROWSUP if (write) { @@ -199,12 +200,16 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, return NULL; } #endif + + if (write) + gup_flags |= FOLL_WRITE; + /* * We are doing an exec(). 'current' is the process * doing the exec and bprm->mm is the new process's mm. */ - ret = get_user_pages_remote(current, bprm->mm, pos, 1, write, - 1, &page, NULL); + ret = get_user_pages_remote(current, bprm->mm, pos, 1, gup_flags, + &page, NULL); if (ret <= 0) return NULL; diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index d831e24dc885..41b8b44a391c 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -622,7 +622,7 @@ static int ext2_get_blocks(struct inode *inode, u32 *bno, bool *new, bool *boundary, int create) { - int err = -EIO; + int err; int offsets[4]; Indirect chain[4]; Indirect *partial; @@ -639,7 +639,7 @@ static int ext2_get_blocks(struct inode *inode, depth = ext2_block_to_path(inode,iblock,offsets,&blocks_to_boundary); if (depth == 0) - return (err); + return -EIO; partial = ext2_get_branch(inode, depth, offsets, chain, &err); /* Simplest case - block found, no allocation needed */ @@ -761,7 +761,6 @@ static int ext2_get_blocks(struct inode *inode, ext2_splice_branch(inode, iblock, partial, indirect_blks, count); mutex_unlock(&ei->truncate_mutex); got_it: - *bno = le32_to_cpu(chain[depth-1].key); if (count > blocks_to_boundary) *boundary = true; err = count; @@ -772,6 +771,8 @@ cleanup: brelse(partial->bh); partial--; } + if (err > 0) + *bno = le32_to_cpu(chain[depth-1].key); return err; } diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index ad0c745ebad7..871c8b392099 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -687,6 +687,11 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent) pri_bh = NULL; root_found: + /* We don't support read-write mounts */ + if (!(s->s_flags & MS_RDONLY)) { + error = -EACCES; + goto out_freebh; + } if (joliet_level && (pri == NULL || !opt.rock)) { /* This is the case of Joliet with the norock mount flag. @@ -1501,9 +1506,6 @@ struct inode *__isofs_iget(struct super_block *sb, static struct dentry *isofs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { - /* We don't support read-write mounts */ - if (!(flags & MS_RDONLY)) - return ERR_PTR(-EACCES); return mount_bdev(fs_type, flags, dev_name, data, isofs_fill_super); } diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index 217847679f0e..2905479f214a 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -344,9 +344,10 @@ static void bl_write_cleanup(struct work_struct *work) u64 start = hdr->args.offset & (loff_t)PAGE_MASK; u64 end = (hdr->args.offset + hdr->args.count + PAGE_SIZE - 1) & (loff_t)PAGE_MASK; + u64 lwb = hdr->args.offset + hdr->args.count; ext_tree_mark_written(bl, start >> SECTOR_SHIFT, - (end - start) >> SECTOR_SHIFT, end); + (end - start) >> SECTOR_SHIFT, lwb); } pnfs_ld_write_done(hdr); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index ad917bd72b38..7897826d7c51 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1545,7 +1545,7 @@ static int update_open_stateid(struct nfs4_state *state, struct nfs_client *clp = server->nfs_client; struct nfs_inode *nfsi = NFS_I(state->inode); struct nfs_delegation *deleg_cur; - nfs4_stateid freeme = {0}; + nfs4_stateid freeme = { }; int ret = 0; fmode &= (FMODE_READ|FMODE_WRITE); diff --git a/fs/proc/array.c b/fs/proc/array.c index 89600fd5963d..81818adb8e9e 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -412,10 +412,11 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, mm = get_task_mm(task); if (mm) { vsize = task_vsize(mm); - if (permitted) { - eip = KSTK_EIP(task); - esp = KSTK_ESP(task); - } + /* + * esp and eip are intentionally zeroed out. There is no + * non-racy way to read them without freezing the task. + * Programs that need reliable values can use ptrace(2). + */ } get_task_comm(tcomm, task); diff --git a/fs/proc/base.c b/fs/proc/base.c index c2964d890c9a..8e654468ab67 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -252,7 +252,7 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf, * Inherently racy -- command line shares address space * with code and data. */ - rv = access_remote_vm(mm, arg_end - 1, &c, 1, 0); + rv = access_remote_vm(mm, arg_end - 1, &c, 1, FOLL_FORCE); if (rv <= 0) goto out_free_page; @@ -270,7 +270,8 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf, int nr_read; _count = min3(count, len, PAGE_SIZE); - nr_read = access_remote_vm(mm, p, page, _count, 0); + nr_read = access_remote_vm(mm, p, page, _count, + FOLL_FORCE); if (nr_read < 0) rv = nr_read; if (nr_read <= 0) @@ -305,7 +306,8 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf, bool final; _count = min3(count, len, PAGE_SIZE); - nr_read = access_remote_vm(mm, p, page, _count, 0); + nr_read = access_remote_vm(mm, p, page, _count, + FOLL_FORCE); if (nr_read < 0) rv = nr_read; if (nr_read <= 0) @@ -354,7 +356,8 @@ skip_argv: bool final; _count = min3(count, len, PAGE_SIZE); - nr_read = access_remote_vm(mm, p, page, _count, 0); + nr_read = access_remote_vm(mm, p, page, _count, + FOLL_FORCE); if (nr_read < 0) rv = nr_read; if (nr_read <= 0) @@ -832,6 +835,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf, unsigned long addr = *ppos; ssize_t copied; char *page; + unsigned int flags = FOLL_FORCE; if (!mm) return 0; @@ -844,6 +848,9 @@ static ssize_t mem_rw(struct file *file, char __user *buf, if (!atomic_inc_not_zero(&mm->mm_users)) goto free; + if (write) + flags |= FOLL_WRITE; + while (count > 0) { int this_len = min_t(int, count, PAGE_SIZE); @@ -852,7 +859,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf, break; } - this_len = access_remote_vm(mm, addr, page, this_len, write); + this_len = access_remote_vm(mm, addr, page, this_len, flags); if (!this_len) { if (!copied) copied = -EIO; @@ -965,7 +972,7 @@ static ssize_t environ_read(struct file *file, char __user *buf, this_len = min(max_len, this_len); retval = access_remote_vm(mm, (env_start + src), - page, this_len, 0); + page, this_len, FOLL_FORCE); if (retval <= 0) { ret = retval; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 6909582ce5e5..35b92d81692f 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -266,24 +266,15 @@ static int do_maps_open(struct inode *inode, struct file *file, * /proc/PID/maps that is the stack of the main task. */ static int is_stack(struct proc_maps_private *priv, - struct vm_area_struct *vma, int is_pid) + struct vm_area_struct *vma) { - int stack = 0; - - if (is_pid) { - stack = vma->vm_start <= vma->vm_mm->start_stack && - vma->vm_end >= vma->vm_mm->start_stack; - } else { - struct inode *inode = priv->inode; - struct task_struct *task; - - rcu_read_lock(); - task = pid_task(proc_pid(inode), PIDTYPE_PID); - if (task) - stack = vma_is_stack_for_task(vma, task); - rcu_read_unlock(); - } - return stack; + /* + * We make no effort to guess what a given thread considers to be + * its "stack". It's not even well-defined for programs written + * languages like Go. + */ + return vma->vm_start <= vma->vm_mm->start_stack && + vma->vm_end >= vma->vm_mm->start_stack; } static void @@ -354,7 +345,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) goto done; } - if (is_stack(priv, vma, is_pid)) + if (is_stack(priv, vma)) name = "[stack]"; } @@ -1669,7 +1660,7 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid) seq_file_path(m, file, "\n\t= "); } else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) { seq_puts(m, " heap"); - } else if (is_stack(proc_priv, vma, is_pid)) { + } else if (is_stack(proc_priv, vma)) { seq_puts(m, " stack"); } diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c index faacb0c0d857..37175621e890 100644 --- a/fs/proc/task_nommu.c +++ b/fs/proc/task_nommu.c @@ -124,25 +124,17 @@ unsigned long task_statm(struct mm_struct *mm, } static int is_stack(struct proc_maps_private *priv, - struct vm_area_struct *vma, int is_pid) + struct vm_area_struct *vma) { struct mm_struct *mm = vma->vm_mm; - int stack = 0; - - if (is_pid) { - stack = vma->vm_start <= mm->start_stack && - vma->vm_end >= mm->start_stack; - } else { - struct inode *inode = priv->inode; - struct task_struct *task; - - rcu_read_lock(); - task = pid_task(proc_pid(inode), PIDTYPE_PID); - if (task) - stack = vma_is_stack_for_task(vma, task); - rcu_read_unlock(); - } - return stack; + + /* + * We make no effort to guess what a given thread considers to be + * its "stack". It's not even well-defined for programs written + * languages like Go. + */ + return vma->vm_start <= mm->start_stack && + vma->vm_end >= mm->start_stack; } /* @@ -184,7 +176,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma, if (file) { seq_pad(m, ' '); seq_file_path(m, file, ""); - } else if (mm && is_stack(priv, vma, is_pid)) { + } else if (mm && is_stack(priv, vma)) { seq_pad(m, ' '); seq_printf(m, "[stack]"); } diff --git a/include/acpi/pcc.h b/include/acpi/pcc.h index 17a940a14477..8caa79c61703 100644 --- a/include/acpi/pcc.h +++ b/include/acpi/pcc.h @@ -21,7 +21,7 @@ extern void pcc_mbox_free_channel(struct mbox_chan *chan); static inline struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id) { - return NULL; + return ERR_PTR(-ENODEV); } static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { } #endif diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 5fa55fc56e18..32dc0cbd51ca 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -677,10 +677,10 @@ static inline int cpufreq_table_find_index_dl(struct cpufreq_policy *policy, if (best == table - 1) return pos - table; - return best - pos; + return best - table; } - return best - pos; + return best - table; } /* Works only on sorted freq-tables */ diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index 8361c8d3edd1..b7e34313cdfe 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -290,7 +290,7 @@ #define GITS_BASER_TYPE_SHIFT (56) #define GITS_BASER_TYPE(r) (((r) >> GITS_BASER_TYPE_SHIFT) & 7) #define GITS_BASER_ENTRY_SIZE_SHIFT (48) -#define GITS_BASER_ENTRY_SIZE(r) ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0xff) + 1) +#define GITS_BASER_ENTRY_SIZE(r) ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1) #define GITS_BASER_SHAREABILITY_SHIFT (10) #define GITS_BASER_InnerShareable \ GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable) diff --git a/include/linux/mm.h b/include/linux/mm.h index e9caec6a51e9..3a191853faaa 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1266,9 +1266,10 @@ static inline int fixup_user_fault(struct task_struct *tsk, } #endif -extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write); +extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, + unsigned int gup_flags); extern int access_remote_vm(struct mm_struct *mm, unsigned long addr, - void *buf, int len, int write); + void *buf, int len, unsigned int gup_flags); long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, @@ -1276,19 +1277,18 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, struct vm_area_struct **vmas, int *nonblocking); long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, + unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas); long get_user_pages(unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, + unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas); long get_user_pages_locked(unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, int *locked); + unsigned int gup_flags, struct page **pages, int *locked); long __get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, - unsigned int gup_flags); + struct page **pages, unsigned int gup_flags); long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages); + struct page **pages, unsigned int gup_flags); int get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **pages); @@ -1306,7 +1306,7 @@ struct frame_vector { struct frame_vector *frame_vector_create(unsigned int nr_frames); void frame_vector_destroy(struct frame_vector *vec); int get_vaddr_frames(unsigned long start, unsigned int nr_pfns, - bool write, bool force, struct frame_vector *vec); + unsigned int gup_flags, struct frame_vector *vec); void put_vaddr_frames(struct frame_vector *vec); int frame_vector_to_pages(struct frame_vector *vec); void frame_vector_to_pfns(struct frame_vector *vec); @@ -1391,7 +1391,7 @@ static inline int stack_guard_page_end(struct vm_area_struct *vma, !vma_growsup(vma->vm_next, addr); } -int vma_is_stack_for_task(struct vm_area_struct *vma, struct task_struct *t); +int vma_is_stack_for_current(struct vm_area_struct *vma); extern unsigned long move_page_tables(struct vm_area_struct *vma, unsigned long old_addr, struct vm_area_struct *new_vma, @@ -2232,6 +2232,7 @@ static inline struct page *follow_page(struct vm_area_struct *vma, #define FOLL_TRIED 0x800 /* a retry, previous pass started an IO */ #define FOLL_MLOCK 0x1000 /* lock present pages */ #define FOLL_REMOTE 0x2000 /* we are working on non-current tsk/mm */ +#define FOLL_COW 0x4000 /* internal GUP flag */ typedef int (*pte_fn_t)(pte_t *pte, pgtable_t token, unsigned long addr, void *data); diff --git a/include/linux/nvme.h b/include/linux/nvme.h index 7676557ce357..fc3c24206593 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -16,7 +16,6 @@ #define _LINUX_NVME_H #include <linux/types.h> -#include <linux/uuid.h> /* NQN names in commands fields specified one size */ #define NVMF_NQN_FIELD_LEN 256 @@ -182,7 +181,7 @@ struct nvme_id_ctrl { char fr[8]; __u8 rab; __u8 ieee[3]; - __u8 mic; + __u8 cmic; __u8 mdts; __le16 cntlid; __le32 ver; @@ -202,7 +201,13 @@ struct nvme_id_ctrl { __u8 apsta; __le16 wctemp; __le16 cctemp; - __u8 rsvd270[50]; + __le16 mtfa; + __le32 hmpre; + __le32 hmmin; + __u8 tnvmcap[16]; + __u8 unvmcap[16]; + __le32 rpmbs; + __u8 rsvd316[4]; __le16 kas; __u8 rsvd322[190]; __u8 sqes; @@ -267,7 +272,7 @@ struct nvme_id_ns { __le16 nabo; __le16 nabspf; __u16 rsvd46; - __le64 nvmcap[2]; + __u8 nvmcap[16]; __u8 rsvd64[40]; __u8 nguid[16]; __u8 eui64[8]; @@ -277,6 +282,16 @@ struct nvme_id_ns { }; enum { + NVME_ID_CNS_NS = 0x00, + NVME_ID_CNS_CTRL = 0x01, + NVME_ID_CNS_NS_ACTIVE_LIST = 0x02, + NVME_ID_CNS_NS_PRESENT_LIST = 0x10, + NVME_ID_CNS_NS_PRESENT = 0x11, + NVME_ID_CNS_CTRL_NS_LIST = 0x12, + NVME_ID_CNS_CTRL_LIST = 0x13, +}; + +enum { NVME_NS_FEAT_THIN = 1 << 0, NVME_NS_FLBAS_LBA_MASK = 0xf, NVME_NS_FLBAS_META_EXT = 0x10, @@ -556,8 +571,10 @@ enum nvme_admin_opcode { nvme_admin_set_features = 0x09, nvme_admin_get_features = 0x0a, nvme_admin_async_event = 0x0c, + nvme_admin_ns_mgmt = 0x0d, nvme_admin_activate_fw = 0x10, nvme_admin_download_fw = 0x11, + nvme_admin_ns_attach = 0x15, nvme_admin_keep_alive = 0x18, nvme_admin_format_nvm = 0x80, nvme_admin_security_send = 0x81, @@ -583,6 +600,7 @@ enum { NVME_FEAT_WRITE_ATOMIC = 0x0a, NVME_FEAT_ASYNC_EVENT = 0x0b, NVME_FEAT_AUTO_PST = 0x0c, + NVME_FEAT_HOST_MEM_BUF = 0x0d, NVME_FEAT_KATO = 0x0f, NVME_FEAT_SW_PROGRESS = 0x80, NVME_FEAT_HOST_ID = 0x81, @@ -745,7 +763,7 @@ struct nvmf_common_command { struct nvmf_disc_rsp_page_entry { __u8 trtype; __u8 adrfam; - __u8 nqntype; + __u8 subtype; __u8 treq; __le16 portid; __le16 cntlid; @@ -794,7 +812,7 @@ struct nvmf_connect_command { }; struct nvmf_connect_data { - uuid_be hostid; + __u8 hostid[16]; __le16 cntlid; char resv4[238]; char subsysnqn[NVMF_NQN_FIELD_LEN]; @@ -905,12 +923,23 @@ enum { NVME_SC_INVALID_VECTOR = 0x108, NVME_SC_INVALID_LOG_PAGE = 0x109, NVME_SC_INVALID_FORMAT = 0x10a, - NVME_SC_FIRMWARE_NEEDS_RESET = 0x10b, + NVME_SC_FW_NEEDS_CONV_RESET = 0x10b, NVME_SC_INVALID_QUEUE = 0x10c, NVME_SC_FEATURE_NOT_SAVEABLE = 0x10d, NVME_SC_FEATURE_NOT_CHANGEABLE = 0x10e, NVME_SC_FEATURE_NOT_PER_NS = 0x10f, - NVME_SC_FW_NEEDS_RESET_SUBSYS = 0x110, + NVME_SC_FW_NEEDS_SUBSYS_RESET = 0x110, + NVME_SC_FW_NEEDS_RESET = 0x111, + NVME_SC_FW_NEEDS_MAX_TIME = 0x112, + NVME_SC_FW_ACIVATE_PROHIBITED = 0x113, + NVME_SC_OVERLAPPING_RANGE = 0x114, + NVME_SC_NS_INSUFFICENT_CAP = 0x115, + NVME_SC_NS_ID_UNAVAILABLE = 0x116, + NVME_SC_NS_ALREADY_ATTACHED = 0x118, + NVME_SC_NS_IS_PRIVATE = 0x119, + NVME_SC_NS_NOT_ATTACHED = 0x11a, + NVME_SC_THIN_PROV_NOT_SUPP = 0x11b, + NVME_SC_CTRL_LIST_INVALID = 0x11c, /* * I/O Command Set Specific - NVM commands: @@ -941,6 +970,7 @@ enum { NVME_SC_REFTAG_CHECK = 0x284, NVME_SC_COMPARE_FAILED = 0x285, NVME_SC_ACCESS_DENIED = 0x286, + NVME_SC_UNWRITTEN_BLOCK = 0x287, NVME_SC_DNR = 0x4000, }; @@ -960,6 +990,7 @@ struct nvme_completion { __le16 status; /* did the command fail, and if so, why? */ }; -#define NVME_VS(major, minor) (((major) << 16) | ((minor) << 8)) +#define NVME_VS(major, minor, tertiary) \ + (((major) << 16) | ((minor) << 8) | (tertiary)) #endif /* _LINUX_NVME_H */ diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h index 45f004e9cc59..2873baf5372a 100644 --- a/include/linux/thread_info.h +++ b/include/linux/thread_info.h @@ -14,17 +14,6 @@ struct timespec; struct compat_timespec; #ifdef CONFIG_THREAD_INFO_IN_TASK -struct thread_info { - unsigned long flags; /* low level flags */ -}; - -#define INIT_THREAD_INFO(tsk) \ -{ \ - .flags = 0, \ -} -#endif - -#ifdef CONFIG_THREAD_INFO_IN_TASK #define current_thread_info() ((struct thread_info *)current) #endif diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index d4129bb05e5d..f9ec9add2164 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -300,7 +300,8 @@ int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr, retry: /* Read the page with vaddr into memory */ - ret = get_user_pages_remote(NULL, mm, vaddr, 1, 0, 1, &old_page, &vma); + ret = get_user_pages_remote(NULL, mm, vaddr, 1, FOLL_FORCE, &old_page, + &vma); if (ret <= 0) return ret; @@ -1710,7 +1711,8 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr) * but we treat this as a 'remote' access since it is * essentially a kernel access to the memory. */ - result = get_user_pages_remote(NULL, mm, vaddr, 1, 0, 1, &page, NULL); + result = get_user_pages_remote(NULL, mm, vaddr, 1, FOLL_FORCE, &page, + NULL); if (result < 0) return result; diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 0c5f1a5db654..9c4d30483264 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -721,6 +721,7 @@ int irq_set_parent(int irq, int parent_irq) irq_put_desc_unlock(desc, flags); return 0; } +EXPORT_SYMBOL_GPL(irq_set_parent); #endif /* diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index d5e397315473..de08fc90baaf 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1769,6 +1769,10 @@ static size_t log_output(int facility, int level, enum log_flags lflags, const c cont_flush(); } + /* Skip empty continuation lines that couldn't be added - they just flush */ + if (!text_len && (lflags & LOG_CONT)) + return 0; + /* If it doesn't end in a newline, try to buffer the current line */ if (!(lflags & LOG_NEWLINE)) { if (cont_add(facility, level, lflags, text, text_len)) diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 2a99027312a6..e6474f7272ec 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -537,7 +537,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst int this_len, retval; this_len = (len > sizeof(buf)) ? sizeof(buf) : len; - retval = access_process_vm(tsk, src, buf, this_len, 0); + retval = access_process_vm(tsk, src, buf, this_len, FOLL_FORCE); if (!retval) { if (copied) break; @@ -564,7 +564,8 @@ int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long ds this_len = (len > sizeof(buf)) ? sizeof(buf) : len; if (copy_from_user(buf, src, this_len)) return -EFAULT; - retval = access_process_vm(tsk, dst, buf, this_len, 1); + retval = access_process_vm(tsk, dst, buf, this_len, + FOLL_FORCE | FOLL_WRITE); if (!retval) { if (copied) break; @@ -1127,7 +1128,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr, unsigned long tmp; int copied; - copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0); + copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), FOLL_FORCE); if (copied != sizeof(tmp)) return -EIO; return put_user(tmp, (unsigned long __user *)data); @@ -1138,7 +1139,8 @@ int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr, { int copied; - copied = access_process_vm(tsk, addr, &data, sizeof(data), 1); + copied = access_process_vm(tsk, addr, &data, sizeof(data), + FOLL_FORCE | FOLL_WRITE); return (copied == sizeof(data)) ? 0 : -EIO; } @@ -1155,7 +1157,8 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request, switch (request) { case PTRACE_PEEKTEXT: case PTRACE_PEEKDATA: - ret = access_process_vm(child, addr, &word, sizeof(word), 0); + ret = access_process_vm(child, addr, &word, sizeof(word), + FOLL_FORCE); if (ret != sizeof(word)) ret = -EIO; else @@ -1164,7 +1167,8 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request, case PTRACE_POKETEXT: case PTRACE_POKEDATA: - ret = access_process_vm(child, addr, &data, sizeof(data), 1); + ret = access_process_vm(child, addr, &data, sizeof(data), + FOLL_FORCE | FOLL_WRITE); ret = (ret != sizeof(data) ? -EIO : 0); break; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 76ee7de1859d..d941c97dfbc3 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -690,7 +690,14 @@ void init_entity_runnable_average(struct sched_entity *se) * will definitely be update (after enqueue). */ sa->period_contrib = 1023; - sa->load_avg = scale_load_down(se->load.weight); + /* + * Tasks are intialized with full load to be seen as heavy tasks until + * they get a chance to stabilize to their real load level. + * Group entities are intialized with zero load to reflect the fact that + * nothing has been attached to the task group yet. + */ + if (entity_is_task(se)) + sa->load_avg = scale_load_down(se->load.weight); sa->load_sum = sa->load_avg * LOAD_AVG_MAX; /* * At this point, util_avg won't be used in select_task_rq_fair anyway diff --git a/mm/frame_vector.c b/mm/frame_vector.c index 381bb07ed14f..db77dcb38afd 100644 --- a/mm/frame_vector.c +++ b/mm/frame_vector.c @@ -11,10 +11,7 @@ * get_vaddr_frames() - map virtual addresses to pfns * @start: starting user address * @nr_frames: number of pages / pfns from start to map - * @write: whether pages will be written to by the caller - * @force: whether to force write access even if user mapping is - * readonly. See description of the same argument of - get_user_pages(). + * @gup_flags: flags modifying lookup behaviour * @vec: structure which receives pages / pfns of the addresses mapped. * It should have space for at least nr_frames entries. * @@ -34,7 +31,7 @@ * This function takes care of grabbing mmap_sem as necessary. */ int get_vaddr_frames(unsigned long start, unsigned int nr_frames, - bool write, bool force, struct frame_vector *vec) + unsigned int gup_flags, struct frame_vector *vec) { struct mm_struct *mm = current->mm; struct vm_area_struct *vma; @@ -59,7 +56,7 @@ int get_vaddr_frames(unsigned long start, unsigned int nr_frames, vec->got_ref = true; vec->is_pfns = false; ret = get_user_pages_locked(start, nr_frames, - write, force, (struct page **)(vec->ptrs), &locked); + gup_flags, (struct page **)(vec->ptrs), &locked); goto out; } @@ -60,6 +60,16 @@ static int follow_pfn_pte(struct vm_area_struct *vma, unsigned long address, return -EEXIST; } +/* + * FOLL_FORCE can write to even unwritable pte's, but only + * after we've gone through a COW cycle and they are dirty. + */ +static inline bool can_follow_write_pte(pte_t pte, unsigned int flags) +{ + return pte_write(pte) || + ((flags & FOLL_FORCE) && (flags & FOLL_COW) && pte_dirty(pte)); +} + static struct page *follow_page_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd, unsigned int flags) { @@ -95,7 +105,7 @@ retry: } if ((flags & FOLL_NUMA) && pte_protnone(pte)) goto no_page; - if ((flags & FOLL_WRITE) && !pte_write(pte)) { + if ((flags & FOLL_WRITE) && !can_follow_write_pte(pte, flags)) { pte_unmap_unlock(ptep, ptl); return NULL; } @@ -412,7 +422,7 @@ static int faultin_page(struct task_struct *tsk, struct vm_area_struct *vma, * reCOWed by userspace write). */ if ((ret & VM_FAULT_WRITE) && !(vma->vm_flags & VM_WRITE)) - *flags &= ~FOLL_WRITE; + *flags |= FOLL_COW; return 0; } @@ -729,7 +739,6 @@ static __always_inline long __get_user_pages_locked(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, struct vm_area_struct **vmas, int *locked, bool notify_drop, @@ -747,10 +756,6 @@ static __always_inline long __get_user_pages_locked(struct task_struct *tsk, if (pages) flags |= FOLL_GET; - if (write) - flags |= FOLL_WRITE; - if (force) - flags |= FOLL_FORCE; pages_done = 0; lock_dropped = false; @@ -843,12 +848,12 @@ static __always_inline long __get_user_pages_locked(struct task_struct *tsk, * up_read(&mm->mmap_sem); */ long get_user_pages_locked(unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, + unsigned int gup_flags, struct page **pages, int *locked) { return __get_user_pages_locked(current, current->mm, start, nr_pages, - write, force, pages, NULL, locked, true, - FOLL_TOUCH); + pages, NULL, locked, true, + gup_flags | FOLL_TOUCH); } EXPORT_SYMBOL(get_user_pages_locked); @@ -864,14 +869,14 @@ EXPORT_SYMBOL(get_user_pages_locked); */ __always_inline long __get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, - unsigned int gup_flags) + struct page **pages, unsigned int gup_flags) { long ret; int locked = 1; + down_read(&mm->mmap_sem); - ret = __get_user_pages_locked(tsk, mm, start, nr_pages, write, force, - pages, NULL, &locked, false, gup_flags); + ret = __get_user_pages_locked(tsk, mm, start, nr_pages, pages, NULL, + &locked, false, gup_flags); if (locked) up_read(&mm->mmap_sem); return ret; @@ -896,10 +901,10 @@ EXPORT_SYMBOL(__get_user_pages_unlocked); * "force" parameter). */ long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages) + struct page **pages, unsigned int gup_flags) { return __get_user_pages_unlocked(current, current->mm, start, nr_pages, - write, force, pages, FOLL_TOUCH); + pages, gup_flags | FOLL_TOUCH); } EXPORT_SYMBOL(get_user_pages_unlocked); @@ -910,9 +915,7 @@ EXPORT_SYMBOL(get_user_pages_unlocked); * @mm: mm_struct of target mm * @start: starting user address * @nr_pages: number of pages from start to pin - * @write: whether pages will be written to by the caller - * @force: whether to force access even when user mapping is currently - * protected (but never forces write access to shared mapping). + * @gup_flags: flags modifying lookup behaviour * @pages: array that receives pointers to the pages pinned. * Should be at least nr_pages long. Or NULL, if caller * only intends to ensure the pages are faulted in. @@ -941,9 +944,9 @@ EXPORT_SYMBOL(get_user_pages_unlocked); * or similar operation cannot guarantee anything stronger anyway because * locks can't be held over the syscall boundary. * - * If write=0, the page must not be written to. If the page is written to, - * set_page_dirty (or set_page_dirty_lock, as appropriate) must be called - * after the page is finished with, and before put_page is called. + * If gup_flags & FOLL_WRITE == 0, the page must not be written to. If the page + * is written to, set_page_dirty (or set_page_dirty_lock, as appropriate) must + * be called after the page is finished with, and before put_page is called. * * get_user_pages is typically used for fewer-copy IO operations, to get a * handle on the memory by some means other than accesses via the user virtual @@ -960,12 +963,12 @@ EXPORT_SYMBOL(get_user_pages_unlocked); */ long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, + unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas) { - return __get_user_pages_locked(tsk, mm, start, nr_pages, write, force, - pages, vmas, NULL, false, - FOLL_TOUCH | FOLL_REMOTE); + return __get_user_pages_locked(tsk, mm, start, nr_pages, pages, vmas, + NULL, false, + gup_flags | FOLL_TOUCH | FOLL_REMOTE); } EXPORT_SYMBOL(get_user_pages_remote); @@ -976,12 +979,12 @@ EXPORT_SYMBOL(get_user_pages_remote); * obviously don't pass FOLL_REMOTE in here. */ long get_user_pages(unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, + unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas) { return __get_user_pages_locked(current, current->mm, start, nr_pages, - write, force, pages, vmas, NULL, false, - FOLL_TOUCH); + pages, vmas, NULL, false, + gup_flags | FOLL_TOUCH); } EXPORT_SYMBOL(get_user_pages); @@ -1505,7 +1508,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, start += nr << PAGE_SHIFT; pages += nr; - ret = get_user_pages_unlocked(start, nr_pages - nr, write, 0, pages); + ret = get_user_pages_unlocked(start, nr_pages - nr, pages, + write ? FOLL_WRITE : 0); /* Have to be a bit careful with return values */ if (nr > 0) { diff --git a/mm/memory.c b/mm/memory.c index fc1987dfd8cc..e18c57bdc75c 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3869,10 +3869,11 @@ EXPORT_SYMBOL_GPL(generic_access_phys); * given task for page fault accounting. */ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, - unsigned long addr, void *buf, int len, int write) + unsigned long addr, void *buf, int len, unsigned int gup_flags) { struct vm_area_struct *vma; void *old_buf = buf; + int write = gup_flags & FOLL_WRITE; down_read(&mm->mmap_sem); /* ignore errors, just check how much was successfully transferred */ @@ -3882,7 +3883,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, struct page *page = NULL; ret = get_user_pages_remote(tsk, mm, addr, 1, - write, 1, &page, &vma); + gup_flags, &page, &vma); if (ret <= 0) { #ifndef CONFIG_HAVE_IOREMAP_PROT break; @@ -3934,14 +3935,14 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, * @addr: start address to access * @buf: source or destination buffer * @len: number of bytes to transfer - * @write: whether the access is a write + * @gup_flags: flags modifying lookup behaviour * * The caller must hold a reference on @mm. */ int access_remote_vm(struct mm_struct *mm, unsigned long addr, - void *buf, int len, int write) + void *buf, int len, unsigned int gup_flags) { - return __access_remote_vm(NULL, mm, addr, buf, len, write); + return __access_remote_vm(NULL, mm, addr, buf, len, gup_flags); } /* @@ -3950,7 +3951,7 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr, * Do not walk the page table directly, use get_user_pages */ int access_process_vm(struct task_struct *tsk, unsigned long addr, - void *buf, int len, int write) + void *buf, int len, unsigned int gup_flags) { struct mm_struct *mm; int ret; @@ -3959,7 +3960,8 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, if (!mm) return 0; - ret = __access_remote_vm(tsk, mm, addr, buf, len, write); + ret = __access_remote_vm(tsk, mm, addr, buf, len, gup_flags); + mmput(mm); return ret; diff --git a/mm/mempolicy.c b/mm/mempolicy.c index ad1c96ac313c..0b859af06b87 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -850,7 +850,7 @@ static int lookup_node(unsigned long addr) struct page *p; int err; - err = get_user_pages(addr & PAGE_MASK, 1, 0, 0, &p, NULL); + err = get_user_pages(addr & PAGE_MASK, 1, 0, &p, NULL); if (err >= 0) { err = page_to_nid(p); put_page(p); diff --git a/mm/mprotect.c b/mm/mprotect.c index bcdbe62f3e6d..11936526b08b 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -25,7 +25,6 @@ #include <linux/perf_event.h> #include <linux/pkeys.h> #include <linux/ksm.h> -#include <linux/pkeys.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/cacheflush.h> diff --git a/mm/nommu.c b/mm/nommu.c index 95daf81a4855..db5fd1795298 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -160,33 +160,25 @@ finish_or_fault: * - don't permit access to VMAs that don't support it, such as I/O mappings */ long get_user_pages(unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, + unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas) { - int flags = 0; - - if (write) - flags |= FOLL_WRITE; - if (force) - flags |= FOLL_FORCE; - - return __get_user_pages(current, current->mm, start, nr_pages, flags, - pages, vmas, NULL); + return __get_user_pages(current, current->mm, start, nr_pages, + gup_flags, pages, vmas, NULL); } EXPORT_SYMBOL(get_user_pages); long get_user_pages_locked(unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, + unsigned int gup_flags, struct page **pages, int *locked) { - return get_user_pages(start, nr_pages, write, force, pages, NULL); + return get_user_pages(start, nr_pages, gup_flags, pages, NULL); } EXPORT_SYMBOL(get_user_pages_locked); long __get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages, - unsigned int gup_flags) + struct page **pages, unsigned int gup_flags) { long ret; down_read(&mm->mmap_sem); @@ -198,10 +190,10 @@ long __get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm, EXPORT_SYMBOL(__get_user_pages_unlocked); long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages, - int write, int force, struct page **pages) + struct page **pages, unsigned int gup_flags) { return __get_user_pages_unlocked(current, current->mm, start, nr_pages, - write, force, pages, 0); + pages, gup_flags); } EXPORT_SYMBOL(get_user_pages_unlocked); @@ -1817,9 +1809,10 @@ void filemap_map_pages(struct fault_env *fe, EXPORT_SYMBOL(filemap_map_pages); static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, - unsigned long addr, void *buf, int len, int write) + unsigned long addr, void *buf, int len, unsigned int gup_flags) { struct vm_area_struct *vma; + int write = gup_flags & FOLL_WRITE; down_read(&mm->mmap_sem); @@ -1854,21 +1847,22 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, * @addr: start address to access * @buf: source or destination buffer * @len: number of bytes to transfer - * @write: whether the access is a write + * @gup_flags: flags modifying lookup behaviour * * The caller must hold a reference on @mm. */ int access_remote_vm(struct mm_struct *mm, unsigned long addr, - void *buf, int len, int write) + void *buf, int len, unsigned int gup_flags) { - return __access_remote_vm(NULL, mm, addr, buf, len, write); + return __access_remote_vm(NULL, mm, addr, buf, len, gup_flags); } /* * Access another process' address space. * - source/target buffer must be kernel space */ -int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write) +int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, + unsigned int gup_flags) { struct mm_struct *mm; @@ -1879,7 +1873,7 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in if (!mm) return 0; - len = __access_remote_vm(tsk, mm, addr, buf, len, write); + len = __access_remote_vm(tsk, mm, addr, buf, len, gup_flags); mmput(mm); return len; diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c index 07514d41ebcc..be8dc8d1edb9 100644 --- a/mm/process_vm_access.c +++ b/mm/process_vm_access.c @@ -88,12 +88,16 @@ static int process_vm_rw_single_vec(unsigned long addr, ssize_t rc = 0; unsigned long max_pages_per_loop = PVM_MAX_KMALLOC_PAGES / sizeof(struct pages *); + unsigned int flags = FOLL_REMOTE; /* Work out address and page range required */ if (len == 0) return 0; nr_pages = (addr + len - 1) / PAGE_SIZE - addr / PAGE_SIZE + 1; + if (vm_write) + flags |= FOLL_WRITE; + while (!rc && nr_pages && iov_iter_count(iter)) { int pages = min(nr_pages, max_pages_per_loop); size_t bytes; @@ -104,8 +108,7 @@ static int process_vm_rw_single_vec(unsigned long addr, * current/current->mm */ pages = __get_user_pages_unlocked(task, mm, pa, pages, - vm_write, 0, process_pages, - FOLL_REMOTE); + process_pages, flags); if (pages <= 0) return -EFAULT; diff --git a/mm/util.c b/mm/util.c index 662cddf914af..1a41553db866 100644 --- a/mm/util.c +++ b/mm/util.c @@ -230,8 +230,10 @@ void __vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma, } /* Check if the vma is being used as a stack by this task */ -int vma_is_stack_for_task(struct vm_area_struct *vma, struct task_struct *t) +int vma_is_stack_for_current(struct vm_area_struct *vma) { + struct task_struct * __maybe_unused t = current; + return (vma->vm_start <= KSTK_ESP(t) && vma->vm_end >= KSTK_ESP(t)); } @@ -283,7 +285,8 @@ EXPORT_SYMBOL_GPL(__get_user_pages_fast); int __weak get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **pages) { - return get_user_pages_unlocked(start, nr_pages, write, 0, pages); + return get_user_pages_unlocked(start, nr_pages, pages, + write ? FOLL_WRITE : 0); } EXPORT_SYMBOL_GPL(get_user_pages_fast); @@ -623,7 +626,7 @@ int get_cmdline(struct task_struct *task, char *buffer, int buflen) if (len > buflen) len = buflen; - res = access_process_vm(task, arg_start, buffer, len, 0); + res = access_process_vm(task, arg_start, buffer, len, FOLL_FORCE); /* * If the nul at the end of args has been overwritten, then @@ -638,7 +641,8 @@ int get_cmdline(struct task_struct *task, char *buffer, int buflen) if (len > buflen - res) len = buflen - res; res += access_process_vm(task, env_start, - buffer+res, len, 0); + buffer+res, len, + FOLL_FORCE); res = strnlen(buffer, res); } } diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c index 00d2601407c5..1a7c9a79a53c 100644 --- a/net/ceph/pagevec.c +++ b/net/ceph/pagevec.c @@ -26,7 +26,7 @@ struct page **ceph_get_direct_page_vector(const void __user *data, while (got < num_pages) { rc = get_user_pages_unlocked( (unsigned long)data + ((unsigned long)got * PAGE_SIZE), - num_pages - got, write_page, 0, pages + got); + num_pages - got, pages + got, write_page ? FOLL_WRITE : 0); if (rc < 0) break; BUG_ON(rc == 0); diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 085057936287..09fd6108e421 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3557,7 +3557,7 @@ static int selinux_file_mprotect(struct vm_area_struct *vma, } else if (!vma->vm_file && ((vma->vm_start <= vma->vm_mm->start_stack && vma->vm_end >= vma->vm_mm->start_stack) || - vma_is_stack_for_task(vma, current))) { + vma_is_stack_for_current(vma))) { rc = current_has_perm(current, PROCESS__EXECSTACK); } else if (vma->vm_file && vma->anon_vma) { /* diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c index ade7c6cad172..682b73af7766 100644 --- a/security/tomoyo/domain.c +++ b/security/tomoyo/domain.c @@ -881,7 +881,7 @@ bool tomoyo_dump_page(struct linux_binprm *bprm, unsigned long pos, * the execve(). */ if (get_user_pages_remote(current, bprm->mm, pos, 1, - 0, 1, &page, NULL) <= 0) + FOLL_FORCE, &page, NULL) <= 0) return false; #else page = bprm->page[pos / PAGE_SIZE]; diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h index 1188bc849ee3..a39629206864 100644 --- a/tools/arch/x86/include/asm/cpufeatures.h +++ b/tools/arch/x86/include/asm/cpufeatures.h @@ -194,6 +194,8 @@ #define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */ #define X86_FEATURE_INTEL_PT ( 7*32+15) /* Intel Processor Trace */ +#define X86_FEATURE_AVX512_4VNNIW (7*32+16) /* AVX-512 Neural Network Instructions */ +#define X86_FEATURE_AVX512_4FMAPS (7*32+17) /* AVX-512 Multiply Accumulation Single precision */ /* Virtualization flags: Linux defined, word 8 */ #define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */ diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index db9668869f6f..8035cc1eb955 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -84,7 +84,8 @@ static void async_pf_execute(struct work_struct *work) * mm and might be done in another context, so we must * use FOLL_REMOTE. */ - __get_user_pages_unlocked(NULL, mm, addr, 1, 1, 0, NULL, FOLL_REMOTE); + __get_user_pages_unlocked(NULL, mm, addr, 1, NULL, + FOLL_WRITE | FOLL_REMOTE); kvm_async_page_present_sync(vcpu, apf); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 81dfc73d3df3..28510e72618a 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1416,10 +1416,15 @@ static int hva_to_pfn_slow(unsigned long addr, bool *async, bool write_fault, down_read(¤t->mm->mmap_sem); npages = get_user_page_nowait(addr, write_fault, page); up_read(¤t->mm->mmap_sem); - } else + } else { + unsigned int flags = FOLL_TOUCH | FOLL_HWPOISON; + + if (write_fault) + flags |= FOLL_WRITE; + npages = __get_user_pages_unlocked(current, current->mm, addr, 1, - write_fault, 0, page, - FOLL_TOUCH|FOLL_HWPOISON); + page, flags); + } if (npages != 1) return npages; |