diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 05:04:00 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 05:04:00 -0300 |
| commit | 273d4428f8c4cc94c9598f8bcc006ec2e8c654ea (patch) | |
| tree | a453898167c5f6387e740a704a46b44b0a35b88a | |
| parent | 863981e96738983919de841ec669e157e6bdaeb0 (diff) | |
Linux-libre 4.7.2-gnupck-4.7.2-gnu
192 files changed, 2086 insertions, 1108 deletions
diff --git a/Documentation/module-signing.txt b/Documentation/module-signing.txt index 696d5caf4..f0e3361db 100644 --- a/Documentation/module-signing.txt +++ b/Documentation/module-signing.txt @@ -271,3 +271,9 @@ Since the private key is used to sign modules, viruses and malware could use the private key to sign modules and compromise the operating system. The private key must be either destroyed or moved to a secure location and not kept in the root node of the kernel source tree. + +If you use the same private key to sign modules for multiple kernel +configurations, you must ensure that the module version information is +sufficient to prevent loading a module into a different kernel. Either +set CONFIG_MODVERSIONS=y or ensure that each configuration has a different +kernel release string by changing EXTRAVERSION or CONFIG_LOCALVERSION. @@ -1,6 +1,6 @@ VERSION = 4 PATCHLEVEL = 7 -SUBLEVEL = 1 +SUBLEVEL = 2 EXTRAVERSION = -gnu NAME = Psychotic Stoned Sheep diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h index 858f98ef7..0f92d9743 100644 --- a/arch/arc/include/asm/pgtable.h +++ b/arch/arc/include/asm/pgtable.h @@ -110,7 +110,7 @@ #define ___DEF (_PAGE_PRESENT | _PAGE_CACHEABLE) /* Set of bits not changed in pte_modify */ -#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) +#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_SPECIAL) /* More Abbrevaited helpers */ #define PAGE_U_NONE __pgprot(___DEF) diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index 73d7e4c75..ab74b5d91 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -92,7 +92,8 @@ static void *arc_dma_alloc(struct device *dev, size_t size, static void arc_dma_free(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs) { - struct page *page = virt_to_page(dma_handle); + phys_addr_t paddr = plat_dma_to_phys(dev, dma_handle); + struct page *page = virt_to_page(paddr); int is_non_coh = 1; is_non_coh = dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs) || diff --git a/arch/arm/boot/dts/arm-realview-pbx-a9.dts b/arch/arm/boot/dts/arm-realview-pbx-a9.dts index db808f92d..90d00b407 100644 --- a/arch/arm/boot/dts/arm-realview-pbx-a9.dts +++ b/arch/arm/boot/dts/arm-realview-pbx-a9.dts @@ -70,13 +70,12 @@ * associativity as these may be erroneously set * up by boot loader(s). */ - cache-size = <1048576>; // 1MB - cache-sets = <4096>; + cache-size = <131072>; // 128KB + cache-sets = <512>; cache-line-size = <32>; arm,parity-disable; - arm,tag-latency = <1>; - arm,data-latency = <1 1>; - arm,dirty-latency = <1>; + arm,tag-latency = <1 1 1>; + arm,data-latency = <1 1 1>; }; scu: scu@1f000000 { diff --git a/arch/arm/boot/dts/sun4i-a10-a1000.dts b/arch/arm/boot/dts/sun4i-a10-a1000.dts index c92a1ae33..fa70b8fbf 100644 --- a/arch/arm/boot/dts/sun4i-a10-a1000.dts +++ b/arch/arm/boot/dts/sun4i-a10-a1000.dts @@ -84,6 +84,7 @@ regulator-name = "emac-3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + startup-delay-us = <20000>; enable-active-high; gpio = <&pio 7 15 GPIO_ACTIVE_HIGH>; }; diff --git a/arch/arm/boot/dts/sun4i-a10-hackberry.dts b/arch/arm/boot/dts/sun4i-a10-hackberry.dts index 2b17c5199..6de83a618 100644 --- a/arch/arm/boot/dts/sun4i-a10-hackberry.dts +++ b/arch/arm/boot/dts/sun4i-a10-hackberry.dts @@ -66,6 +66,7 @@ regulator-name = "emac-3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + startup-delay-us = <20000>; enable-active-high; gpio = <&pio 7 19 GPIO_ACTIVE_HIGH>; }; diff --git a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts index 7afc7a64e..e28f080b1 100644 --- a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts +++ b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts @@ -80,6 +80,7 @@ regulator-name = "emac-3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + startup-delay-us = <20000>; enable-active-high; gpio = <&pio 7 19 GPIO_ACTIVE_HIGH>; /* PH19 */ }; diff --git a/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts b/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts index 9fea918f9..39731a78f 100644 --- a/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts +++ b/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts @@ -79,6 +79,7 @@ regulator-name = "emac-3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + startup-delay-us = <20000>; enable-active-high; gpio = <&pio 0 2 GPIO_ACTIVE_HIGH>; }; diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts index 941f36263..f4d8125c1 100644 --- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts +++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts @@ -1386,7 +1386,7 @@ * Pin 41: BR_UART1_TXD * Pin 44: BR_UART1_RXD */ - serial@70006000 { + serial@0,70006000 { compatible = "nvidia,tegra124-hsuart", "nvidia,tegra30-hsuart"; status = "okay"; }; @@ -1398,7 +1398,7 @@ * Pin 71: UART2_CTS_L * Pin 74: UART2_RTS_L */ - serial@70006040 { + serial@0,70006040 { compatible = "nvidia,tegra124-hsuart", "nvidia,tegra30-hsuart"; status = "okay"; }; diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig index b6e54ee9b..ca39c04fe 100644 --- a/arch/arm/configs/aspeed_g4_defconfig +++ b/arch/arm/configs/aspeed_g4_defconfig @@ -58,7 +58,7 @@ CONFIG_SERIAL_OF_PLATFORM=y # CONFIG_IOMMU_SUPPORT is not set CONFIG_FIRMWARE_MEMMAP=y CONFIG_FANOTIFY=y -CONFIG_PRINTK_TIME=1 +CONFIG_PRINTK_TIME=y CONFIG_DYNAMIC_DEBUG=y CONFIG_STRIP_ASM_SYMS=y CONFIG_PAGE_POISONING=y diff --git a/arch/arm/configs/aspeed_g5_defconfig b/arch/arm/configs/aspeed_g5_defconfig index 892605167..4f366b037 100644 --- a/arch/arm/configs/aspeed_g5_defconfig +++ b/arch/arm/configs/aspeed_g5_defconfig @@ -59,7 +59,7 @@ CONFIG_SERIAL_OF_PLATFORM=y # CONFIG_IOMMU_SUPPORT is not set CONFIG_FIRMWARE_MEMMAP=y CONFIG_FANOTIFY=y -CONFIG_PRINTK_TIME=1 +CONFIG_PRINTK_TIME=y CONFIG_DYNAMIC_DEBUG=y CONFIG_STRIP_ASM_SYMS=y CONFIG_PAGE_POISONING=y diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index ff7ed5697..d2485c749 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -49,6 +49,7 @@ struct arm_dma_alloc_args { pgprot_t prot; const void *caller; bool want_vaddr; + int coherent_flag; }; struct arm_dma_free_args { @@ -59,6 +60,9 @@ struct arm_dma_free_args { bool want_vaddr; }; +#define NORMAL 0 +#define COHERENT 1 + struct arm_dma_allocator { void *(*alloc)(struct arm_dma_alloc_args *args, struct page **ret_page); @@ -272,7 +276,7 @@ static u64 get_coherent_dma_mask(struct device *dev) return mask; } -static void __dma_clear_buffer(struct page *page, size_t size) +static void __dma_clear_buffer(struct page *page, size_t size, int coherent_flag) { /* * Ensure that the allocated pages are zeroed, and that any data @@ -284,17 +288,21 @@ static void __dma_clear_buffer(struct page *page, size_t size) while (size > 0) { void *ptr = kmap_atomic(page); memset(ptr, 0, PAGE_SIZE); - dmac_flush_range(ptr, ptr + PAGE_SIZE); + if (coherent_flag != COHERENT) + dmac_flush_range(ptr, ptr + PAGE_SIZE); kunmap_atomic(ptr); page++; size -= PAGE_SIZE; } - outer_flush_range(base, end); + if (coherent_flag != COHERENT) + outer_flush_range(base, end); } else { void *ptr = page_address(page); memset(ptr, 0, size); - dmac_flush_range(ptr, ptr + size); - outer_flush_range(__pa(ptr), __pa(ptr) + size); + if (coherent_flag != COHERENT) { + dmac_flush_range(ptr, ptr + size); + outer_flush_range(__pa(ptr), __pa(ptr) + size); + } } } @@ -302,7 +310,8 @@ static void __dma_clear_buffer(struct page *page, size_t size) * Allocate a DMA buffer for 'dev' of size 'size' using the * specified gfp mask. Note that 'size' must be page aligned. */ -static struct page *__dma_alloc_buffer(struct device *dev, size_t size, gfp_t gfp) +static struct page *__dma_alloc_buffer(struct device *dev, size_t size, + gfp_t gfp, int coherent_flag) { unsigned long order = get_order(size); struct page *page, *p, *e; @@ -318,7 +327,7 @@ static struct page *__dma_alloc_buffer(struct device *dev, size_t size, gfp_t gf for (p = page + (size >> PAGE_SHIFT), e = page + (1 << order); p < e; p++) __free_page(p); - __dma_clear_buffer(page, size); + __dma_clear_buffer(page, size, coherent_flag); return page; } @@ -340,7 +349,8 @@ static void __dma_free_buffer(struct page *page, size_t size) static void *__alloc_from_contiguous(struct device *dev, size_t size, pgprot_t prot, struct page **ret_page, - const void *caller, bool want_vaddr); + const void *caller, bool want_vaddr, + int coherent_flag); static void *__alloc_remap_buffer(struct device *dev, size_t size, gfp_t gfp, pgprot_t prot, struct page **ret_page, @@ -405,10 +415,13 @@ static int __init atomic_pool_init(void) atomic_pool = gen_pool_create(PAGE_SHIFT, -1); if (!atomic_pool) goto out; - + /* + * The atomic pool is only used for non-coherent allocations + * so we must pass NORMAL for coherent_flag. + */ if (dev_get_cma_area(NULL)) ptr = __alloc_from_contiguous(NULL, atomic_pool_size, prot, - &page, atomic_pool_init, true); + &page, atomic_pool_init, true, NORMAL); else ptr = __alloc_remap_buffer(NULL, atomic_pool_size, gfp, prot, &page, atomic_pool_init, true); @@ -522,7 +535,11 @@ static void *__alloc_remap_buffer(struct device *dev, size_t size, gfp_t gfp, { struct page *page; void *ptr = NULL; - page = __dma_alloc_buffer(dev, size, gfp); + /* + * __alloc_remap_buffer is only called when the device is + * non-coherent + */ + page = __dma_alloc_buffer(dev, size, gfp, NORMAL); if (!page) return NULL; if (!want_vaddr) @@ -577,7 +594,8 @@ static int __free_from_pool(void *start, size_t size) static void *__alloc_from_contiguous(struct device *dev, size_t size, pgprot_t prot, struct page **ret_page, - const void *caller, bool want_vaddr) + const void *caller, bool want_vaddr, + int coherent_flag) { unsigned long order = get_order(size); size_t count = size >> PAGE_SHIFT; @@ -588,7 +606,7 @@ static void *__alloc_from_contiguous(struct device *dev, size_t size, if (!page) return NULL; - __dma_clear_buffer(page, size); + __dma_clear_buffer(page, size, coherent_flag); if (!want_vaddr) goto out; @@ -638,7 +656,7 @@ static inline pgprot_t __get_dma_pgprot(struct dma_attrs *attrs, pgprot_t prot) #define __get_dma_pgprot(attrs, prot) __pgprot(0) #define __alloc_remap_buffer(dev, size, gfp, prot, ret, c, wv) NULL #define __alloc_from_pool(size, ret_page) NULL -#define __alloc_from_contiguous(dev, size, prot, ret, c, wv) NULL +#define __alloc_from_contiguous(dev, size, prot, ret, c, wv, coherent_flag) NULL #define __free_from_pool(cpu_addr, size) do { } while (0) #define __free_from_contiguous(dev, page, cpu_addr, size, wv) do { } while (0) #define __dma_free_remap(cpu_addr, size) do { } while (0) @@ -649,7 +667,8 @@ static void *__alloc_simple_buffer(struct device *dev, size_t size, gfp_t gfp, struct page **ret_page) { struct page *page; - page = __dma_alloc_buffer(dev, size, gfp); + /* __alloc_simple_buffer is only called when the device is coherent */ + page = __dma_alloc_buffer(dev, size, gfp, COHERENT); if (!page) return NULL; @@ -679,7 +698,7 @@ static void *cma_allocator_alloc(struct arm_dma_alloc_args *args, { return __alloc_from_contiguous(args->dev, args->size, args->prot, ret_page, args->caller, - args->want_vaddr); + args->want_vaddr, args->coherent_flag); } static void cma_allocator_free(struct arm_dma_free_args *args) @@ -746,6 +765,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, .prot = prot, .caller = caller, .want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs), + .coherent_flag = is_coherent ? COHERENT : NORMAL, }; #ifdef CONFIG_DMA_API_DEBUG @@ -1253,7 +1273,8 @@ static inline void __free_iova(struct dma_iommu_mapping *mapping, static const int iommu_order_array[] = { 9, 8, 4, 0 }; static struct page **__iommu_alloc_buffer(struct device *dev, size_t size, - gfp_t gfp, struct dma_attrs *attrs) + gfp_t gfp, struct dma_attrs *attrs, + int coherent_flag) { struct page **pages; int count = size >> PAGE_SHIFT; @@ -1277,7 +1298,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size, if (!page) goto error; - __dma_clear_buffer(page, size); + __dma_clear_buffer(page, size, coherent_flag); for (i = 0; i < count; i++) pages[i] = page + i; @@ -1327,7 +1348,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size, pages[i + j] = pages[i] + j; } - __dma_clear_buffer(pages[i], PAGE_SIZE << order); + __dma_clear_buffer(pages[i], PAGE_SIZE << order, coherent_flag); i += 1 << order; count -= 1 << order; } @@ -1505,7 +1526,8 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, */ gfp &= ~(__GFP_COMP); - pages = __iommu_alloc_buffer(dev, size, gfp, attrs); + /* For now always consider we are in a non-coherent case */ + pages = __iommu_alloc_buffer(dev, size, gfp, attrs, NORMAL); if (!pages) return NULL; diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 5a0a691d4..20384925b 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -872,7 +872,7 @@ config RELOCATABLE config RANDOMIZE_BASE bool "Randomize the address of the kernel image" - select ARM64_MODULE_PLTS + select ARM64_MODULE_PLTS if MODULES select RELOCATABLE help Randomizes the virtual address at which the kernel image is diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi index 8b4a7c915..080203e3a 100644 --- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi @@ -670,7 +670,7 @@ #address-cells = <0>; reg = <0x0 0xffb71000 0x0 0x1000>, - <0x0 0xffb72000 0x0 0x1000>, + <0x0 0xffb72000 0x0 0x2000>, <0x0 0xffb74000 0x0 0x2000>, <0x0 0xffb76000 0x0 0x2000>; interrupts = <GIC_PPI 9 diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c index 4fbf3c542..0800d23e2 100644 --- a/arch/arm64/kernel/debug-monitors.c +++ b/arch/arm64/kernel/debug-monitors.c @@ -151,7 +151,6 @@ static int debug_monitors_init(void) /* Clear the OS lock. */ on_each_cpu(clear_os_lock, NULL, 1); isb(); - local_dbg_enable(); /* Register hotplug handler. */ __register_cpu_notifier(&os_lock_nb); diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c index 21ab5df9f..65d81f965 100644 --- a/arch/arm64/kernel/hibernate.c +++ b/arch/arm64/kernel/hibernate.c @@ -35,6 +35,7 @@ #include <asm/sections.h> #include <asm/smp.h> #include <asm/suspend.h> +#include <asm/sysreg.h> #include <asm/virt.h> /* @@ -217,12 +218,22 @@ static int create_safe_exec_page(void *src_start, size_t length, set_pte(pte, __pte(virt_to_phys((void *)dst) | pgprot_val(PAGE_KERNEL_EXEC))); - /* Load our new page tables */ - asm volatile("msr ttbr0_el1, %0;" - "isb;" - "tlbi vmalle1is;" - "dsb ish;" - "isb" : : "r"(virt_to_phys(pgd))); + /* + * Load our new page tables. A strict BBM approach requires that we + * ensure that TLBs are free of any entries that may overlap with the + * global mappings we are about to install. + * + * For a real hibernate/resume cycle TTBR0 currently points to a zero + * page, but TLBs may contain stale ASID-tagged entries (e.g. for EFI + * runtime services), while for a userspace-driven test_resume cycle it + * points to userspace page tables (and we must point it at a zero page + * ourselves). Elsewhere we only (un)install the idmap with preemption + * disabled, so T0SZ should be as required regardless. + */ + cpu_set_reserved_ttbr0(); + local_flush_tlb_all(); + write_sysreg(virt_to_phys(pgd), ttbr0_el1); + isb(); *phys_dst_addr = virt_to_phys((void *)dst); @@ -394,6 +405,38 @@ int swsusp_arch_resume(void) void *, phys_addr_t, phys_addr_t); /* + * Restoring the memory image will overwrite the ttbr1 page tables. + * Create a second copy of just the linear map, and use this when + * restoring. + */ + tmp_pg_dir = (pgd_t *)get_safe_page(GFP_ATOMIC); + if (!tmp_pg_dir) { + pr_err("Failed to allocate memory for temporary page tables."); + rc = -ENOMEM; + goto out; + } + rc = copy_page_tables(tmp_pg_dir, PAGE_OFFSET, 0); + if (rc) + goto out; + + /* + * Since we only copied the linear map, we need to find restore_pblist's + * linear map address. + */ + lm_restore_pblist = LMADDR(restore_pblist); + + /* + * We need a zero page that is zero before & after resume in order to + * to break before make on the ttbr1 page tables. + */ + zero_page = (void *)get_safe_page(GFP_ATOMIC); + if (!zero_page) { + pr_err("Failed to allocate zero page."); + rc = -ENOMEM; + goto out; + } + + /* * Locate the exit code in the bottom-but-one page, so that *NULL * still has disastrous affects. */ @@ -419,27 +462,6 @@ int swsusp_arch_resume(void) __flush_dcache_area(hibernate_exit, exit_size); /* - * Restoring the memory image will overwrite the ttbr1 page tables. - * Create a second copy of just the linear map, and use this when - * restoring. - */ - tmp_pg_dir = (pgd_t *)get_safe_page(GFP_ATOMIC); - if (!tmp_pg_dir) { - pr_err("Failed to allocate memory for temporary page tables."); - rc = -ENOMEM; - goto out; - } - rc = copy_page_tables(tmp_pg_dir, PAGE_OFFSET, 0); - if (rc) - goto out; - - /* - * Since we only copied the linear map, we need to find restore_pblist's - * linear map address. - */ - lm_restore_pblist = LMADDR(restore_pblist); - - /* * KASLR will cause the el2 vectors to be in a different location in * the resumed kernel. Load hibernate's temporary copy into el2. * @@ -453,12 +475,6 @@ int swsusp_arch_resume(void) __hyp_set_vectors(el2_vectors); } - /* - * We need a zero page that is zero before & after resume in order to - * to break before make on the ttbr1 page tables. - */ - zero_page = (void *)get_safe_page(GFP_ATOMIC); - hibernate_exit(virt_to_phys(tmp_pg_dir), resume_hdr.ttbr1_el1, resume_hdr.reenter_kernel, lm_restore_pblist, resume_hdr.__hyp_stub_vectors, virt_to_phys(zero_page)); diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 62ff3c062..490db85de 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -267,7 +267,6 @@ asmlinkage void secondary_start_kernel(void) set_cpu_online(cpu, true); complete(&cpu_running); - local_dbg_enable(); local_irq_enable(); local_async_enable(); @@ -437,9 +436,9 @@ void __init smp_cpus_done(unsigned int max_cpus) void __init smp_prepare_boot_cpu(void) { + set_my_cpu_offset(per_cpu_offset(smp_processor_id())); cpuinfo_store_boot_cpu(); save_boot_cpu_run_el(); - set_my_cpu_offset(per_cpu_offset(smp_processor_id())); } static u64 __init of_get_cpu_mpidr(struct device_node *dn) @@ -694,6 +693,13 @@ void __init smp_prepare_cpus(unsigned int max_cpus) smp_store_cpu_info(smp_processor_id()); /* + * If UP is mandated by "nosmp" (which implies "maxcpus=0"), don't set + * secondary CPUs present. + */ + if (max_cpus == 0) + return; + + /* * Initialise the present map (which describes the set of CPUs * actually populated at the present time) and release the * secondaries from the bootloader. diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index 435e820e8..e564d4595 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -181,9 +181,9 @@ SECTIONS *(.hash) } - __rela_offset = ADDR(.rela) - KIMAGE_VADDR; + __rela_offset = ABSOLUTE(ADDR(.rela) - KIMAGE_VADDR); __rela_size = SIZEOF(.rela); - __dynsym_offset = ADDR(.dynsym) - KIMAGE_VADDR; + __dynsym_offset = ABSOLUTE(ADDR(.dynsym) - KIMAGE_VADDR); . = ALIGN(SEGMENT_ALIGN); __init_end = .; diff --git a/arch/arm64/kvm/hyp/sysreg-sr.c b/arch/arm64/kvm/hyp/sysreg-sr.c index 0f7c40eb3..934137647 100644 --- a/arch/arm64/kvm/hyp/sysreg-sr.c +++ b/arch/arm64/kvm/hyp/sysreg-sr.c @@ -27,8 +27,8 @@ static void __hyp_text __sysreg_do_nothing(struct kvm_cpu_context *ctxt) { } /* * Non-VHE: Both host and guest must save everything. * - * VHE: Host must save tpidr*_el[01], actlr_el1, sp0, pc, pstate, and - * guest must save everything. + * VHE: Host must save tpidr*_el[01], actlr_el1, mdscr_el1, sp0, pc, + * pstate, and guest must save everything. */ static void __hyp_text __sysreg_save_common_state(struct kvm_cpu_context *ctxt) @@ -37,6 +37,7 @@ static void __hyp_text __sysreg_save_common_state(struct kvm_cpu_context *ctxt) ctxt->sys_regs[TPIDR_EL0] = read_sysreg(tpidr_el0); ctxt->sys_regs[TPIDRRO_EL0] = read_sysreg(tpidrro_el0); ctxt->sys_regs[TPIDR_EL1] = read_sysreg(tpidr_el1); + ctxt->sys_regs[MDSCR_EL1] = read_sysreg(mdscr_el1); ctxt->gp_regs.regs.sp = read_sysreg(sp_el0); ctxt->gp_regs.regs.pc = read_sysreg_el2(elr); ctxt->gp_regs.regs.pstate = read_sysreg_el2(spsr); @@ -61,7 +62,6 @@ static void __hyp_text __sysreg_save_state(struct kvm_cpu_context *ctxt) ctxt->sys_regs[AMAIR_EL1] = read_sysreg_el1(amair); ctxt->sys_regs[CNTKCTL_EL1] = read_sysreg_el1(cntkctl); ctxt->sys_regs[PAR_EL1] = read_sysreg(par_el1); - ctxt->sys_regs[MDSCR_EL1] = read_sysreg(mdscr_el1); ctxt->gp_regs.sp_el1 = read_sysreg(sp_el1); ctxt->gp_regs.elr_el1 = read_sysreg_el1(elr); @@ -90,6 +90,7 @@ static void __hyp_text __sysreg_restore_common_state(struct kvm_cpu_context *ctx write_sysreg(ctxt->sys_regs[TPIDR_EL0], tpidr_el0); write_sysreg(ctxt->sys_regs[TPIDRRO_EL0], tpidrro_el0); write_sysreg(ctxt->sys_regs[TPIDR_EL1], tpidr_el1); + write_sysreg(ctxt->sys_regs[MDSCR_EL1], mdscr_el1); write_sysreg(ctxt->gp_regs.regs.sp, sp_el0); write_sysreg_el2(ctxt->gp_regs.regs.pc, elr); write_sysreg_el2(ctxt->gp_regs.regs.pstate, spsr); @@ -114,7 +115,6 @@ static void __hyp_text __sysreg_restore_state(struct kvm_cpu_context *ctxt) write_sysreg_el1(ctxt->sys_regs[AMAIR_EL1], amair); write_sysreg_el1(ctxt->sys_regs[CNTKCTL_EL1], cntkctl); write_sysreg(ctxt->sys_regs[PAR_EL1], par_el1); - write_sysreg(ctxt->sys_regs[MDSCR_EL1], mdscr_el1); write_sysreg(ctxt->gp_regs.sp_el1, sp_el1); write_sysreg_el1(ctxt->gp_regs.elr_el1, elr); diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c index e9e0e6db7..898c0e6ae 100644 --- a/arch/arm64/kvm/inject_fault.c +++ b/arch/arm64/kvm/inject_fault.c @@ -132,16 +132,14 @@ static u64 get_except_vector(struct kvm_vcpu *vcpu, enum exception_type type) static void inject_abt64(struct kvm_vcpu *vcpu, bool is_iabt, unsigned long addr) { unsigned long cpsr = *vcpu_cpsr(vcpu); - bool is_aarch32; + bool is_aarch32 = vcpu_mode_is_32bit(vcpu); u32 esr = 0; - is_aarch32 = vcpu_mode_is_32bit(vcpu); - - *vcpu_spsr(vcpu) = cpsr; *vcpu_elr_el1(vcpu) = *vcpu_pc(vcpu); - *vcpu_pc(vcpu) = get_except_vector(vcpu, except_type_sync); + *vcpu_cpsr(vcpu) = PSTATE_FAULT_BITS_64; + *vcpu_spsr(vcpu) = cpsr; vcpu_sys_reg(vcpu, FAR_EL1) = addr; @@ -172,11 +170,11 @@ static void inject_undef64(struct kvm_vcpu *vcpu) unsigned long cpsr = *vcpu_cpsr(vcpu); u32 esr = (ESR_ELx_EC_UNKNOWN << ESR_ELx_EC_SHIFT); - *vcpu_spsr(vcpu) = cpsr; *vcpu_elr_el1(vcpu) = *vcpu_pc(vcpu); - *vcpu_pc(vcpu) = get_except_vector(vcpu, except_type_sync); + *vcpu_cpsr(vcpu) = PSTATE_FAULT_BITS_64; + *vcpu_spsr(vcpu) = cpsr; /* * Build an unknown exception, depending on the instruction diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 0f85a46c3..3e90a2cad 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -748,9 +748,9 @@ void *__init __fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot) /* * Check whether the physical FDT address is set and meets the minimum * alignment requirement. Since we are relying on MIN_FDT_ALIGN to be - * at least 8 bytes so that we can always access the size field of the - * FDT header after mapping the first chunk, double check here if that - * is indeed the case. + * at least 8 bytes so that we can always access the magic and size + * fields of the FDT header after mapping the first chunk, double check + * here if that is indeed the case. */ BUILD_BUG_ON(MIN_FDT_ALIGN < 8); if (!dt_phys || dt_phys % MIN_FDT_ALIGN) @@ -778,7 +778,7 @@ void *__init __fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot) create_mapping_noalloc(round_down(dt_phys, SWAPPER_BLOCK_SIZE), dt_virt_base, SWAPPER_BLOCK_SIZE, prot); - if (fdt_check_header(dt_virt) != 0) + if (fdt_magic(dt_virt) != FDT_MAGIC) return NULL; *size = fdt_totalsize(dt_virt); diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S index c4317879b..5bb61de23 100644 --- a/arch/arm64/mm/proc.S +++ b/arch/arm64/mm/proc.S @@ -180,6 +180,8 @@ ENTRY(__cpu_setup) msr cpacr_el1, x0 // Enable FP/ASIMD mov x0, #1 << 12 // Reset mdscr_el1 and disable msr mdscr_el1, x0 // access to the DCC from EL0 + isb // Unmask debug exceptions now, + enable_dbg // since this is per-cpu reset_pmuserenr_el0 x0 // Disable PMU access from EL0 /* * Memory region attributes for LPAE: diff --git a/arch/metag/include/asm/cmpxchg_lnkget.h b/arch/metag/include/asm/cmpxchg_lnkget.h index 0154e2807..2369ad394 100644 --- a/arch/metag/include/asm/cmpxchg_lnkget.h +++ b/arch/metag/include/asm/cmpxchg_lnkget.h @@ -73,7 +73,7 @@ static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old, " DCACHE [%2], %0\n" #endif "2:\n" - : "=&d" (temp), "=&da" (retval) + : "=&d" (temp), "=&d" (retval) : "da" (m), "bd" (old), "da" (new) : "cc" ); diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c index e4c21bbf9..804d2a2a1 100644 --- a/arch/mips/kernel/cevt-r4k.c +++ b/arch/mips/kernel/cevt-r4k.c @@ -276,12 +276,7 @@ int r4k_clockevent_init(void) CLOCK_EVT_FEAT_C3STOP | CLOCK_EVT_FEAT_PERCPU; - clockevent_set_clock(cd, mips_hpt_frequency); - - /* Calculate the min / max delta */ - cd->max_delta_ns = clockevent_delta2ns(0x7fffffff, cd); min_delta = calculate_min_delta(); - cd->min_delta_ns = clockevent_delta2ns(min_delta, cd); cd->rating = 300; cd->irq = irq; @@ -289,7 +284,7 @@ int r4k_clockevent_init(void) cd->set_next_event = mips_next_event; cd->event_handler = mips_event_handler; - clockevents_register_device(cd); + clockevents_config_and_register(cd, mips_hpt_frequency, min_delta, 0x7fffffff); if (cp0_timer_irq_installed) return 0; diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c index 1f910563f..d76275da5 100644 --- a/arch/mips/kernel/csrc-r4k.c +++ b/arch/mips/kernel/csrc-r4k.c @@ -23,7 +23,7 @@ static struct clocksource clocksource_mips = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -static u64 notrace r4k_read_sched_clock(void) +static u64 __maybe_unused notrace r4k_read_sched_clock(void) { return read_c0_count(); } @@ -82,7 +82,9 @@ int __init init_r4k_clocksource(void) clocksource_register_hz(&clocksource_mips, mips_hpt_frequency); +#ifndef CONFIG_CPU_FREQ sched_clock_register(r4k_read_sched_clock, 32, mips_hpt_frequency); +#endif return 0; } diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c index 645c8a198..2b42a74ed 100644 --- a/arch/mips/kvm/emulate.c +++ b/arch/mips/kvm/emulate.c @@ -1615,8 +1615,14 @@ enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, preempt_disable(); if (KVM_GUEST_KSEGX(va) == KVM_GUEST_KSEG0) { - if (kvm_mips_host_tlb_lookup(vcpu, va) < 0) - kvm_mips_handle_kseg0_tlb_fault(va, vcpu); + if (kvm_mips_host_tlb_lookup(vcpu, va) < 0 && + kvm_mips_handle_kseg0_tlb_fault(va, vcpu)) { + kvm_err("%s: handling mapped kseg0 tlb fault for %lx, vcpu: %p, ASID: %#lx\n", + __func__, va, vcpu, read_c0_entryhi()); + er = EMULATE_FAIL; + preempt_enable(); + goto done; + } } else if ((KVM_GUEST_KSEGX(va) < KVM_GUEST_KSEG0) || KVM_GUEST_KSEGX(va) == KVM_GUEST_KSEG23) { int index; @@ -1654,14 +1660,19 @@ enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, run, vcpu); preempt_enable(); goto dont_update_pc; - } else { - /* - * We fault an entry from the guest tlb to the - * shadow host TLB - */ - kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb, - NULL, - NULL); + } + /* + * We fault an entry from the guest tlb to the + * shadow host TLB + */ + if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb, + NULL, NULL)) { + kvm_err("%s: handling mapped seg tlb fault for %lx, index: %u, vcpu: %p, ASID: %#lx\n", + __func__, va, index, vcpu, + read_c0_entryhi()); + er = EMULATE_FAIL; + preempt_enable(); + goto done; } } } else { @@ -2625,8 +2636,13 @@ enum emulation_result kvm_mips_handle_tlbmiss(unsigned long cause, * OK we have a Guest TLB entry, now inject it into the * shadow host TLB */ - kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb, NULL, - NULL); + if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb, + NULL, NULL)) { + kvm_err("%s: handling mapped seg tlb fault for %lx, index: %u, vcpu: %p, ASID: %#lx\n", + __func__, va, index, vcpu, + read_c0_entryhi()); + er = EMULATE_FAIL; + } } } diff --git a/arch/mips/kvm/tlb.c b/arch/mips/kvm/tlb.c index ed021ae78..ad2270ff8 100644 --- a/arch/mips/kvm/tlb.c +++ b/arch/mips/kvm/tlb.c @@ -284,7 +284,7 @@ int kvm_mips_handle_kseg0_tlb_fault(unsigned long badvaddr, } gfn = (KVM_GUEST_CPHYSADDR(badvaddr) >> PAGE_SHIFT); - if (gfn >= kvm->arch.guest_pmap_npages) { + if ((gfn | 1) >= kvm->arch.guest_pmap_npages) { kvm_err("%s: Invalid gfn: %#llx, BadVaddr: %#lx\n", __func__, gfn, badvaddr); kvm_mips_dump_host_tlbs(); @@ -373,26 +373,40 @@ int kvm_mips_handle_mapped_seg_tlb_fault(struct kvm_vcpu *vcpu, unsigned long entryhi = 0, entrylo0 = 0, entrylo1 = 0; struct kvm *kvm = vcpu->kvm; kvm_pfn_t pfn0, pfn1; + gfn_t gfn0, gfn1; + long tlb_lo[2]; int ret; - if ((tlb->tlb_hi & VPN2_MASK) == 0) { - pfn0 = 0; - pfn1 = 0; - } else { - if (kvm_mips_map_page(kvm, mips3_tlbpfn_to_paddr(tlb->tlb_lo0) - >> PAGE_SHIFT) < 0) - return -1; - - if (kvm_mips_map_page(kvm, mips3_tlbpfn_to_paddr(tlb->tlb_lo1) - >> PAGE_SHIFT) < 0) - return -1; - - pfn0 = kvm->arch.guest_pmap[mips3_tlbpfn_to_paddr(tlb->tlb_lo0) - >> PAGE_SHIFT]; - pfn1 = kvm->arch.guest_pmap[mips3_tlbpfn_to_paddr(tlb->tlb_lo1) - >> PAGE_SHIFT]; + tlb_lo[0] = tlb->tlb_lo0; + tlb_lo[1] = tlb->tlb_lo1; + + /* + * The commpage address must not be mapped to anything else if the guest + * TLB contains entries nearby, or commpage accesses will break. + */ + if (!((tlb->tlb_hi ^ KVM_GUEST_COMMPAGE_ADDR) & + VPN2_MASK & (PAGE_MASK << 1))) + tlb_lo[(KVM_GUEST_COMMPAGE_ADDR >> PAGE_SHIFT) & 1] = 0; + + gfn0 = mips3_tlbpfn_to_paddr(tlb_lo[0]) >> PAGE_SHIFT; + gfn1 = mips3_tlbpfn_to_paddr(tlb_lo[1]) >> PAGE_SHIFT; + if (gfn0 >= kvm->arch.guest_pmap_npages || + gfn1 >= kvm->arch.guest_pmap_npages) { + kvm_err("%s: Invalid gfn: [%#llx, %#llx], EHi: %#lx\n", + __func__, gfn0, gfn1, tlb->tlb_hi); + kvm_mips_dump_guest_tlbs(vcpu); + return -1; } + if (kvm_mips_map_page(kvm, gfn0) < 0) + return -1; + + if (kvm_mips_map_page(kvm, gfn1) < 0) + return -1; + + pfn0 = kvm->arch.guest_pmap[gfn0]; + pfn1 = kvm->arch.guest_pmap[gfn1]; + if (hpa0) *hpa0 = pfn0 << PAGE_SHIFT; @@ -401,9 +415,9 @@ int kvm_mips_handle_mapped_seg_tlb_fault(struct kvm_vcpu *vcpu, /* Get attributes from the Guest TLB */ entrylo0 = mips3_paddr_to_tlbpfn(pfn0 << PAGE_SHIFT) | (0x3 << 3) | - (tlb->tlb_lo0 & MIPS3_PG_D) | (tlb->tlb_lo0 & MIPS3_PG_V); + (tlb_lo[0] & MIPS3_PG_D) | (tlb_lo[0] & MIPS3_PG_V); entrylo1 = mips3_paddr_to_tlbpfn(pfn1 << PAGE_SHIFT) | (0x3 << 3) | - (tlb->tlb_lo1 & MIPS3_PG_D) | (tlb->tlb_lo1 & MIPS3_PG_V); + (tlb_lo[1] & MIPS3_PG_D) | (tlb_lo[1] & MIPS3_PG_V); kvm_debug("@ %#lx tlb_lo0: 0x%08lx tlb_lo1: 0x%08lx\n", vcpu->arch.pc, tlb->tlb_lo0, tlb->tlb_lo1); @@ -776,10 +790,16 @@ uint32_t kvm_get_inst(uint32_t *opc, struct kvm_vcpu *vcpu) local_irq_restore(flags); return KVM_INVALID_INST; } - kvm_mips_handle_mapped_seg_tlb_fault(vcpu, - &vcpu->arch. - guest_tlb[index], - NULL, NULL); + if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu, + &vcpu->arch.guest_tlb[index], + NULL, NULL)) { + kvm_err("%s: handling mapped seg tlb fault failed for %p, index: %u, vcpu: %p, ASID: %#lx\n", + __func__, opc, index, vcpu, + read_c0_entryhi()); + kvm_mips_dump_guest_tlbs(vcpu); + local_irq_restore(flags); + return KVM_INVALID_INST; + } inst = *(opc); } local_irq_restore(flags); diff --git a/arch/mips/loongson64/loongson-3/hpet.c b/arch/mips/loongson64/loongson-3/hpet.c index 249039af6..4788bea62 100644 --- a/arch/mips/loongson64/loongson-3/hpet.c +++ b/arch/mips/loongson64/loongson-3/hpet.c @@ -13,8 +13,8 @@ #define SMBUS_PCI_REG64 0x64 #define SMBUS_PCI_REGB4 0xb4 -#define HPET_MIN_CYCLES 64 -#define HPET_MIN_PROG_DELTA (HPET_MIN_CYCLES + (HPET_MIN_CYCLES >> 1)) +#define HPET_MIN_CYCLES 16 +#define HPET_MIN_PROG_DELTA (HPET_MIN_CYCLES * 12) static DEFINE_SPINLOCK(hpet_lock); DEFINE_PER_CPU(struct clock_event_device, hpet_clockevent_device); @@ -157,14 +157,14 @@ static int hpet_tick_resume(struct clock_event_device *evt) static int hpet_next_event(unsigned long delta, struct clock_event_device *evt) { - unsigned int cnt; - int res; + u32 cnt; + s32 res; cnt = hpet_read(HPET_COUNTER); - cnt += delta; + cnt += (u32) delta; hpet_write(HPET_T0_CMP, cnt); - res = (int)(cnt - hpet_read(HPET_COUNTER)); + res = (s32)(cnt - hpet_read(HPET_COUNTER)); return res < HPET_MIN_CYCLES ? -ETIME : 0; } @@ -230,7 +230,7 @@ void __init setup_hpet_timer(void) cd = &per_cpu(hpet_clockevent_device, cpu); cd->name = "hpet"; - cd->rating = 320; + cd->rating = 100; cd->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; cd->set_state_shutdown = hpet_set_state_shutdown; cd->set_state_periodic = hpet_set_state_periodic; diff --git a/arch/mips/mm/uasm-mips.c b/arch/mips/mm/uasm-mips.c index 9c2220a45..45e3b8799 100644 --- a/arch/mips/mm/uasm-mips.c +++ b/arch/mips/mm/uasm-mips.c @@ -65,7 +65,7 @@ static struct insn insn_table[] = { #ifndef CONFIG_CPU_MIPSR6 { insn_cache, M(cache_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, #else - { insn_cache, M6(cache_op, 0, 0, 0, cache6_op), RS | RT | SIMM9 }, + { insn_cache, M6(spec3_op, 0, 0, 0, cache6_op), RS | RT | SIMM9 }, #endif { insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD }, diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S index b7019b559..298afcf3b 100644 --- a/arch/powerpc/kernel/tm.S +++ b/arch/powerpc/kernel/tm.S @@ -338,8 +338,6 @@ _GLOBAL(__tm_recheckpoint) */ subi r7, r7, STACK_FRAME_OVERHEAD - SET_SCRATCH0(r1) - mfmsr r6 /* R4 = original MSR to indicate whether thread used FP/Vector etc. */ @@ -468,6 +466,7 @@ restore_gprs: * until we turn MSR RI back on. */ + SET_SCRATCH0(r1) ld r5, -8(r1) ld r1, -16(r1) diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index e571ad277..38e108eae 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -655,112 +655,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S) #ifdef CONFIG_PPC_TRANSACTIONAL_MEM BEGIN_FTR_SECTION - b skip_tm -END_FTR_SECTION_IFCLR(CPU_FTR_TM) - - /* Turn on TM/FP/VSX/VMX so we can restore them. */ - mfmsr r5 - li r6, MSR_TM >> 32 - sldi r6, r6, 32 - or r5, r5, r6 - ori r5, r5, MSR_FP - oris r5, r5, (MSR_VEC | MSR_VSX)@h - mtmsrd r5 - - /* - * The user may change these outside of a transaction, so they must - * always be context switched. - */ - ld r5, VCPU_TFHAR(r4) - ld r6, VCPU_TFIAR(r4) - ld r7, VCPU_TEXASR(r4) - mtspr SPRN_TFHAR, r5 - mtspr SPRN_TFIAR, r6 - mtspr SPRN_TEXASR, r7 - - ld r5, VCPU_MSR(r4) - rldicl. r5, r5, 64 - MSR_TS_S_LG, 62 - beq skip_tm /* TM not active in guest */ - - /* Make sure the failure summary is set, otherwise we'll program check - * when we trechkpt. It's possible that this might have been not set - * on a kvmppc_set_one_reg() call but we shouldn't let this crash the - * host. - */ - oris r7, r7, (TEXASR_FS)@h - mtspr SPRN_TEXASR, r7 - - /* - * We need to load up the checkpointed state for the guest. - * We need to do this early as it will blow away any GPRs, VSRs and - * some SPRs. - */ - - mr r31, r4 - addi r3, r31, VCPU_FPRS_TM - bl load_fp_state - addi r3, r31, VCPU_VRS_TM - bl load_vr_state - mr r4, r31 - lwz r7, VCPU_VRSAVE_TM(r4) - mtspr SPRN_VRSAVE, r7 - - ld r5, VCPU_LR_TM(r4) - lwz r6, VCPU_CR_TM(r4) - ld r7, VCPU_CTR_TM(r4) - ld r8, VCPU_AMR_TM(r4) - ld r9, VCPU_TAR_TM(r4) - mtlr r5 - mtcr r6 - mtctr r7 - mtspr SPRN_AMR, r8 - mtspr SPRN_TAR, r9 - - /* - * Load up PPR and DSCR values but don't put them in the actual SPRs - * till the last moment to avoid running with userspace PPR and DSCR for - * too long. - */ - ld r29, VCPU_DSCR_TM(r4) - ld r30, VCPU_PPR_TM(r4) - - std r2, PACATMSCRATCH(r13) /* Save TOC */ - - /* Clear the MSR RI since r1, r13 are all going to be foobar. */ - li r5, 0 - mtmsrd r5, 1 - - /* Load GPRs r0-r28 */ - reg = 0 - .rept 29 - ld reg, VCPU_GPRS_TM(reg)(r31) - reg = reg + 1 - .endr - - mtspr SPRN_DSCR, r29 - mtspr SPRN_PPR, r30 - - /* Load final GPRs */ - ld 29, VCPU_GPRS_TM(29)(r31) - ld 30, VCPU_GPRS_TM(30)(r31) - ld 31, VCPU_GPRS_TM(31)(r31) - - /* TM checkpointed state is now setup. All GPRs are now volatile. */ - TRECHKPT - - /* Now let's get back the state we need. */ - HMT_MEDIUM - GET_PACA(r13) - ld r29, HSTATE_DSCR(r13) - mtspr SPRN_DSCR, r29 - ld r4, HSTATE_KVM_VCPU(r13) - ld r1, HSTATE_HOST_R1(r13) - ld r2, PACATMSCRATCH(r13) - - /* Set the MSR RI since we have our registers back. */ - li r5, MSR_RI - mtmsrd r5, 1 -skip_tm: + bl kvmppc_restore_tm +END_FTR_SECTION_IFSET(CPU_FTR_TM) #endif /* Load guest PMU registers */ @@ -841,12 +737,6 @@ BEGIN_FTR_SECTION /* Skip next section on POWER7 */ b 8f END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S) - /* Turn on TM so we can access TFHAR/TFIAR/TEXASR */ - mfmsr r8 - li r0, 1 - rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG - mtmsrd r8 - /* Load up POWER8-specific registers */ ld r5, VCPU_IAMR(r4) lwz r6, VCPU_PSPB(r4) @@ -1436,106 +1326,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S) #ifdef CONFIG_PPC_TRANSACTIONAL_MEM BEGIN_FTR_SECTION - b 2f -END_FTR_SECTION_IFCLR(CPU_FTR_TM) - /* Turn on TM. */ - mfmsr r8 - li r0, 1 - rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG - mtmsrd r8 - - ld r5, VCPU_MSR(r9) - rldicl. r5, r5, 64 - MSR_TS_S_LG, 62 - beq 1f /* TM not active in guest. */ - - li r3, TM_CAUSE_KVM_RESCHED - - /* Clear the MSR RI since r1, r13 are all going to be foobar. */ - li r5, 0 - mtmsrd r5, 1 - - /* All GPRs are volatile at this point. */ - TRECLAIM(R3) - - /* Temporarily store r13 and r9 so we have some regs to play with */ - SET_SCRATCH0(r13) - GET_PACA(r13) - std r9, PACATMSCRATCH(r13) - ld r9, HSTATE_KVM_VCPU(r13) - - /* Get a few more GPRs free. */ - std r29, VCPU_GPRS_TM(29)(r9) - std r30, VCPU_GPRS_TM(30)(r9) - std r31, VCPU_GPRS_TM(31)(r9) - - /* Save away PPR and DSCR soon so don't run with user values. */ - mfspr r31, SPRN_PPR - HMT_MEDIUM - mfspr r30, SPRN_DSCR - ld r29, HSTATE_DSCR(r13) - mtspr SPRN_DSCR, r29 - - /* Save all but r9, r13 & r29-r31 */ - reg = 0 - .rept 29 - .if (reg != 9) && (reg != 13) - std reg, VCPU_GPRS_TM(reg)(r9) - .endif - reg = reg + 1 - .endr - /* ... now save r13 */ - GET_SCRATCH0(r4) - std r4, VCPU_GPRS_TM(13)(r9) - /* ... and save r9 */ - ld r4, PACATMSCRATCH(r13) - std r4, VCPU_GPRS_TM(9)(r9) - - /* Reload stack pointer and TOC. */ - ld r1, HSTATE_HOST_R1(r13) - ld r2, PACATOC(r13) - - /* Set MSR RI now we have r1 and r13 back. */ - li r5, MSR_RI - mtmsrd r5, 1 - - /* Save away checkpinted SPRs. */ - std r31, VCPU_PPR_TM(r9) - std r30, VCPU_DSCR_TM(r9) - mflr r5 - mfcr r6 - mfctr r7 - mfspr r8, SPRN_AMR - mfspr r10, SPRN_TAR - std r5, VCPU_LR_TM(r9) - stw r6, VCPU_CR_TM(r9) - std r7, VCPU_CTR_TM(r9) - std r8, VCPU_AMR_TM(r9) - std r10, VCPU_TAR_TM(r9) - - /* Restore r12 as trap number. */ - lwz r12, VCPU_TRAP(r9) - - /* Save FP/VSX. */ - addi r3, r9, VCPU_FPRS_TM - bl store_fp_state - addi r3, r9, VCPU_VRS_TM - bl store_vr_state - mfspr r6, SPRN_VRSAVE - stw r6, VCPU_VRSAVE_TM(r9) -1: - /* - * We need to save these SPRs after the treclaim so that the software - * error code is recorded correctly in the TEXASR. Also the user may - * change these outside of a transaction, so they must always be - * context switched. - */ - mfspr r5, SPRN_TFHAR - mfspr r6, SPRN_TFIAR - mfspr r7, SPRN_TEXASR - std r5, VCPU_TFHAR(r9) - std r6, VCPU_TFIAR(r9) - std r7, VCPU_TEXASR(r9) -2: + bl kvmppc_save_tm +END_FTR_SECTION_IFSET(CPU_FTR_TM) #endif /* Increment yield count if they have a VPA */ @@ -2245,6 +2037,13 @@ _GLOBAL(kvmppc_h_cede) /* r3 = vcpu pointer, r11 = msr, r13 = paca */ /* save FP state */ bl kvmppc_save_fp +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM +BEGIN_FTR_SECTION + ld r9, HSTATE_KVM_VCPU(r13) + bl kvmppc_save_tm +END_FTR_SECTION_IFSET(CPU_FTR_TM) +#endif + /* * Set DEC to the smaller of DEC and HDEC, so that we wake * no later than the end of our timeslice (HDEC interrupts @@ -2321,6 +2120,12 @@ kvm_end_cede: bl kvmhv_accumulate_time #endif +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM +BEGIN_FTR_SECTION + bl kvmppc_restore_tm +END_FTR_SECTION_IFSET(CPU_FTR_TM) +#endif + /* load up FP state */ bl kvmppc_load_fp @@ -2631,6 +2436,239 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC) mr r4,r31 blr +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM +/* + * Save transactional state and TM-related registers. + * Called with r9 pointing to the vcpu struct. + * This can modify all checkpointed registers, but + * restores r1, r2 and r9 (vcpu pointer) before exit. + */ +kvmppc_save_tm: + mflr r0 + std r0, PPC_LR_STKOFF(r1) + + /* Turn on TM. */ + mfmsr r8 + li r0, 1 + rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG + mtmsrd r8 + + ld r5, VCPU_MSR(r9) + rldicl. r5, r5, 64 - MSR_TS_S_LG, 62 + beq 1f /* TM not active in guest. */ + + std r1, HSTATE_HOST_R1(r13) + li r3, TM_CAUSE_KVM_RESCHED + + /* Clear the MSR RI since r1, r13 are all going to be foobar. */ + li r5, 0 + mtmsrd r5, 1 + + /* All GPRs are volatile at this point. */ + TRECLAIM(R3) + + /* Temporarily store r13 and r9 so we have some regs to play with */ + SET_SCRATCH0(r13) + GET_PACA(r13) + std r9, PACATMSCRATCH(r13) + ld r9, HSTATE_KVM_VCPU(r13) + + /* Get a few more GPRs free. */ + std r29, VCPU_GPRS_TM(29)(r9) + std r30, VCPU_GPRS_TM(30)(r9) + std r31, VCPU_GPRS_TM(31)(r9) + + /* Save away PPR and DSCR soon so don't run with user values. */ + mfspr r31, SPRN_PPR + HMT_MEDIUM + mfspr r30, SPRN_DSCR + ld r29, HSTATE_DSCR(r13) + mtspr SPRN_DSCR, r29 + + /* Save all but r9, r13 & r29-r31 */ + reg = 0 + .rept 29 + .if (reg != 9) && (reg != 13) + std reg, VCPU_GPRS_TM(reg)(r9) + .endif + reg = reg + 1 + .endr + /* ... now save r13 */ + GET_SCRATCH0(r4) + std r4, VCPU_GPRS_TM(13)(r9) + /* ... and save r9 */ + ld r4, PACATMSCRATCH(r13) + std r4, VCPU_GPRS_TM(9)(r9) + + /* Reload stack pointer and TOC. */ + ld r1, HSTATE_HOST_R1(r13) + ld r2, PACATOC(r13) + + /* Set MSR RI now we have r1 and r13 back. */ + li r5, MSR_RI + mtmsrd r5, 1 + + /* Save away checkpinted SPRs. */ + std r31, VCPU_PPR_TM(r9) + std r30, VCPU_DSCR_TM(r9) + mflr r5 + mfcr r6 + mfctr r7 + mfspr r8, SPRN_AMR + mfspr r10, SPRN_TAR + std r5, VCPU_LR_TM(r9) + stw r6, VCPU_CR_TM(r9) + std r7, VCPU_CTR_TM(r9) + std r8, VCPU_AMR_TM(r9) + std r10, VCPU_TAR_TM(r9) + + /* Restore r12 as trap number. */ + lwz r12, VCPU_TRAP(r9) + + /* Save FP/VSX. */ + addi r3, r9, VCPU_FPRS_TM + bl store_fp_state + addi r3, r9, VCPU_VRS_TM + bl store_vr_state + mfspr r6, SPRN_VRSAVE + stw r6, VCPU_VRSAVE_TM(r9) +1: + /* + * We need to save these SPRs after the treclaim so that the software + * error code is recorded correctly in the TEXASR. Also the user may + * change these outside of a transaction, so they must always be + * context switched. + */ + mfspr r5, SPRN_TFHAR + mfspr r6, SPRN_TFIAR + mfspr r7, SPRN_TEXASR + std r5, VCPU_TFHAR(r9) + std r6, VCPU_TFIAR(r9) + std r7, VCPU_TEXASR(r9) + + ld r0, PPC_LR_STKOFF(r1) + mtlr r0 + blr + +/* + * Restore transactional state and TM-related registers. + * Called with r4 pointing to the vcpu struct. + * This potentially modifies all checkpointed registers. + * It restores r1, r2, r4 from the PACA. + */ +kvmppc_restore_tm: + mflr r0 + std r0, PPC_LR_STKOFF(r1) + + /* Turn on TM/FP/VSX/VMX so we can restore them. */ + mfmsr r5 + li r6, MSR_TM >> 32 + sldi r6, r6, 32 + or r5, r5, r6 + ori r5, r5, MSR_FP + oris r5, r5, (MSR_VEC | MSR_VSX)@h + mtmsrd r5 + + /* + * The user may change these outside of a transaction, so they must + * always be context switched. + */ + ld r5, VCPU_TFHAR(r4) + ld r6, VCPU_TFIAR(r4) + ld r7, VCPU_TEXASR(r4) + mtspr SPRN_TFHAR, r5 + mtspr SPRN_TFIAR, r6 + mtspr SPRN_TEXASR, r7 + + ld r5, VCPU_MSR(r4) + rldicl. r5, r5, 64 - MSR_TS_S_LG, 62 + beqlr /* TM not active in guest */ + std r1, HSTATE_HOST_R1(r13) + + /* Make sure the failure summary is set, otherwise we'll program check + * when we trechkpt. It's possible that this might have been not set + * on a kvmppc_set_one_reg() call but we shouldn't let this crash the + * host. + */ + oris r7, r7, (TEXASR_FS)@h + mtspr SPRN_TEXASR, r7 + + /* + * We need to load up the checkpointed state for the guest. + * We need to do this early as it will blow away any GPRs, VSRs and + * some SPRs. + */ + + mr r31, r4 + addi r3, r31, VCPU_FPRS_TM + bl load_fp_state + addi r3, r31, VCPU_VRS_TM + bl load_vr_state + mr r4, r31 + lwz r7, VCPU_VRSAVE_TM(r4) + mtspr SPRN_VRSAVE, r7 + + ld r5, VCPU_LR_TM(r4) + lwz r6, VCPU_CR_TM(r4) + ld r7, VCPU_CTR_TM(r4) + ld r8, VCPU_AMR_TM(r4) + ld r9, VCPU_TAR_TM(r4) + mtlr r5 + mtcr r6 + mtctr r7 + mtspr SPRN_AMR, r8 + mtspr SPRN_TAR, r9 + + /* + * Load up PPR and DSCR values but don't put them in the actual SPRs + * till the last moment to avoid running with userspace PPR and DSCR for + * too long. + */ + ld r29, VCPU_DSCR_TM(r4) + ld r30, VCPU_PPR_TM(r4) + + std r2, PACATMSCRATCH(r13) /* Save TOC */ + + /* Clear the MSR RI since r1, r13 are all going to be foobar. */ + li r5, 0 + mtmsrd r5, 1 + + /* Load GPRs r0-r28 */ + reg = 0 + .rept 29 + ld reg, VCPU_GPRS_TM(reg)(r31) + reg = reg + 1 + .endr + + mtspr SPRN_DSCR, r29 + mtspr SPRN_PPR, r30 + + /* Load final GPRs */ + ld 29, VCPU_GPRS_TM(29)(r31) + ld 30, VCPU_GPRS_TM(30)(r31) + ld 31, VCPU_GPRS_TM(31)(r31) + + /* TM checkpointed state is now setup. All GPRs are now volatile. */ + TRECHKPT + + /* Now let's get back the state we need. */ + HMT_MEDIUM + GET_PACA(r13) + ld r29, HSTATE_DSCR(r13) + mtspr SPRN_DSCR, r29 + ld r4, HSTATE_KVM_VCPU(r13) + ld r1, HSTATE_HOST_R1(r13) + ld r2, PACATMSCRATCH(r13) + + /* Set the MSR RI since we have our registers back. */ + li r5, MSR_RI + mtmsrd r5, 1 + + ld r0, PPC_LR_STKOFF(r1) + mtlr r0 + blr +#endif + /* * We come here if we get any exception or interrupt while we are * executing host real mode code while in guest MMU context. diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 18d2beb89..42b968a85 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -893,7 +893,7 @@ void ptep_zap_key(struct mm_struct *mm, unsigned long addr, pte_t *ptep); bool test_and_clear_guest_dirty(struct mm_struct *mm, unsigned long address); int set_guest_storage_key(struct mm_struct *mm, unsigned long addr, unsigned char key, bool nq); -unsigned char get_guest_storage_key(struct mm_struct *mm, unsigned long addr); +unsigned long get_guest_storage_key(struct mm_struct *mm, unsigned long addr); /* * Certain architectures need to do special things when PTEs diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h index a2e6ef32e..0a2031618 100644 --- a/arch/s390/include/asm/tlbflush.h +++ b/arch/s390/include/asm/tlbflush.h @@ -81,7 +81,8 @@ static inline void __tlb_flush_full(struct mm_struct *mm) } /* - * Flush TLB entries for a specific ASCE on all CPUs. + * Flush TLB entries for a specific ASCE on all CPUs. Should never be used + * when more than one asce (e.g. gmap) ran on this mm. */ static inline void __tlb_flush_asce(struct mm_struct *mm, unsigned long asce) { diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index cace818d8..313c3b8cf 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -85,7 +85,7 @@ EXPORT_SYMBOL_GPL(gmap_alloc); static void gmap_flush_tlb(struct gmap *gmap) { if (MACHINE_HAS_IDTE) - __tlb_flush_asce(gmap->mm, gmap->asce); + __tlb_flush_idte(gmap->asce); else __tlb_flush_global(); } @@ -124,7 +124,7 @@ void gmap_free(struct gmap *gmap) /* Flush tlb. */ if (MACHINE_HAS_IDTE) - __tlb_flush_asce(gmap->mm, gmap->asce); + __tlb_flush_idte(gmap->asce); else __tlb_flush_global(); diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 9f0ce0e6e..ebb4f8711 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -543,7 +543,7 @@ int set_guest_storage_key(struct mm_struct *mm, unsigned long addr, } EXPORT_SYMBOL(set_guest_storage_key); -unsigned char get_guest_storage_key(struct mm_struct *mm, unsigned long addr) +unsigned long get_guest_storage_key(struct mm_struct *mm, unsigned long addr) { unsigned char key; spinlock_t *ptl; diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index 8acaf4e38..a86d7cc2c 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c @@ -15,6 +15,7 @@ #include <kern_util.h> #include <os.h> #include <sysdep/mcontext.h> +#include <um_malloc.h> void (*sig_info[NSIG])(int, struct siginfo *, struct uml_pt_regs *) = { [SIGTRAP] = relay_signal, @@ -32,7 +33,7 @@ static void sig_handler_common(int sig, struct siginfo *si, mcontext_t *mc) struct uml_pt_regs *r; int save_errno = errno; - r = malloc(sizeof(struct uml_pt_regs)); + r = uml_kmalloc(sizeof(struct uml_pt_regs), UM_GFP_ATOMIC); if (!r) panic("out of memory"); @@ -91,7 +92,7 @@ static void timer_real_alarm_handler(mcontext_t *mc) { struct uml_pt_regs *regs; - regs = malloc(sizeof(struct uml_pt_regs)); + regs = uml_kmalloc(sizeof(struct uml_pt_regs), UM_GFP_ATOMIC); if (!regs) panic("out of memory"); diff --git a/arch/unicore32/include/asm/mmu_context.h b/arch/unicore32/include/asm/mmu_context.h index e35632ef2..62dfc644c 100644 --- a/arch/unicore32/include/asm/mmu_context.h +++ b/arch/unicore32/include/asm/mmu_context.h @@ -98,7 +98,7 @@ static inline void arch_bprm_mm_init(struct mm_struct *mm, } static inline bool arch_vma_access_permitted(struct vm_area_struct *vma, - bool write, bool foreign) + bool write, bool execute, bool foreign) { /* by default, allow everything */ return true; diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c index 874e8bd64..bd136ac14 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -2546,7 +2546,7 @@ void hswep_uncore_cpu_init(void) static struct intel_uncore_type hswep_uncore_ha = { .name = "ha", - .num_counters = 5, + .num_counters = 4, .num_boxes = 2, .perf_ctr_bits = 48, SNBEP_UNCORE_PCI_COMMON_INIT(), @@ -2565,7 +2565,7 @@ static struct uncore_event_desc hswep_uncore_imc_events[] = { static struct intel_uncore_type hswep_uncore_imc = { .name = "imc", - .num_counters = 5, + .num_counters = 4, .num_boxes = 8, .perf_ctr_bits = 48, .fixed_ctr_bits = 48, @@ -2611,7 +2611,7 @@ static struct intel_uncore_type hswep_uncore_irp = { static struct intel_uncore_type hswep_uncore_qpi = { .name = "qpi", - .num_counters = 5, + .num_counters = 4, .num_boxes = 3, .perf_ctr_bits = 48, .perf_ctr = SNBEP_PCI_PMON_CTR0, @@ -2693,7 +2693,7 @@ static struct event_constraint hswep_uncore_r3qpi_constraints[] = { static struct intel_uncore_type hswep_uncore_r3qpi = { .name = "r3qpi", - .num_counters = 4, + .num_counters = 3, .num_boxes = 3, .perf_ctr_bits = 44, .constraints = hswep_uncore_r3qpi_constraints, @@ -2892,7 +2892,7 @@ static struct intel_uncore_type bdx_uncore_ha = { static struct intel_uncore_type bdx_uncore_imc = { .name = "imc", - .num_counters = 5, + .num_counters = 4, .num_boxes = 8, .perf_ctr_bits = 48, .fixed_ctr_bits = 48, diff --git a/arch/x86/kvm/mtrr.c b/arch/x86/kvm/mtrr.c index c146f3c26..0149ac59c 100644 --- a/arch/x86/kvm/mtrr.c +++ b/arch/x86/kvm/mtrr.c @@ -539,6 +539,7 @@ static void mtrr_lookup_var_start(struct mtrr_iter *iter) iter->fixed = false; iter->start_max = iter->start; + iter->range = NULL; iter->range = list_prepare_entry(iter->range, &mtrr_state->head, node); __mtrr_lookup_var_next(iter); diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 64a79f271..8326d6891 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8224,6 +8224,7 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu) if ((vectoring_info & VECTORING_INFO_VALID_MASK) && (exit_reason != EXIT_REASON_EXCEPTION_NMI && exit_reason != EXIT_REASON_EPT_VIOLATION && + exit_reason != EXIT_REASON_PML_FULL && exit_reason != EXIT_REASON_TASK_SWITCH)) { vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR; vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_DELIVERY_EV; @@ -8854,6 +8855,22 @@ static void vmx_load_vmcs01(struct kvm_vcpu *vcpu) put_cpu(); } +/* + * Ensure that the current vmcs of the logical processor is the + * vmcs01 of the vcpu before calling free_nested(). + */ +static void vmx_free_vcpu_nested(struct kvm_vcpu *vcpu) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + int r; + + r = vcpu_load(vcpu); + BUG_ON(r); + vmx_load_vmcs01(vcpu); + free_nested(vmx); + vcpu_put(vcpu); +} + static void vmx_free_vcpu(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); @@ -8862,8 +8879,7 @@ static void vmx_free_vcpu(struct kvm_vcpu *vcpu) vmx_destroy_pml_buffer(vmx); free_vpid(vmx->vpid); leave_guest_mode(vcpu); - vmx_load_vmcs01(vcpu); - free_nested(vmx); + vmx_free_vcpu_nested(vcpu); free_loaded_vmcs(vmx->loaded_vmcs); kfree(vmx->guest_msrs); kvm_vcpu_uninit(vcpu); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 7da5dd205..fea2c5717 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -91,6 +91,7 @@ static u64 __read_mostly efer_reserved_bits = ~((u64)EFER_SCE); static void update_cr8_intercept(struct kvm_vcpu *vcpu); static void process_nmi(struct kvm_vcpu *vcpu); +static void process_smi(struct kvm_vcpu *vcpu); static void __kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags); struct kvm_x86_ops *kvm_x86_ops __read_mostly; @@ -5296,13 +5297,8 @@ static void kvm_smm_changed(struct kvm_vcpu *vcpu) /* This is a good place to trace that we are exiting SMM. */ trace_kvm_enter_smm(vcpu->vcpu_id, vcpu->arch.smbase, false); - if (unlikely(vcpu->arch.smi_pending)) { - kvm_make_request(KVM_REQ_SMI, vcpu); - vcpu->arch.smi_pending = 0; - } else { - /* Process a latched INIT, if any. */ - kvm_make_request(KVM_REQ_EVENT, vcpu); - } + /* Process a latched INIT or SMI, if any. */ + kvm_make_request(KVM_REQ_EVENT, vcpu); } kvm_mmu_reset_context(vcpu); @@ -6102,7 +6098,10 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win) } /* try to inject new event if pending */ - if (vcpu->arch.nmi_pending && kvm_x86_ops->nmi_allowed(vcpu)) { + if (vcpu->arch.smi_pending && !is_smm(vcpu)) { + vcpu->arch.smi_pending = false; + process_smi(vcpu); + } else if (vcpu->arch.nmi_pending && kvm_x86_ops->nmi_allowed(vcpu)) { --vcpu->arch.nmi_pending; vcpu->arch.nmi_injected = true; kvm_x86_ops->set_nmi(vcpu); @@ -6312,11 +6311,6 @@ static void process_smi(struct kvm_vcpu *vcpu) char buf[512]; u32 cr0; - if (is_smm(vcpu)) { - vcpu->arch.smi_pending = true; - return; - } - trace_kvm_enter_smm(vcpu->vcpu_id, vcpu->arch.smbase, true); vcpu->arch.hflags |= HF_SMM_MASK; memset(buf, 0, 512); @@ -6379,6 +6373,12 @@ static void process_smi(struct kvm_vcpu *vcpu) kvm_mmu_reset_context(vcpu); } +static void process_smi_request(struct kvm_vcpu *vcpu) +{ + vcpu->arch.smi_pending = true; + kvm_make_request(KVM_REQ_EVENT, vcpu); +} + void kvm_make_scan_ioapic_request(struct kvm *kvm) { kvm_make_all_cpus_request(kvm, KVM_REQ_SCAN_IOAPIC); @@ -6500,7 +6500,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) if (kvm_check_request(KVM_REQ_STEAL_UPDATE, vcpu)) record_steal_time(vcpu); if (kvm_check_request(KVM_REQ_SMI, vcpu)) - process_smi(vcpu); + process_smi_request(vcpu); if (kvm_check_request(KVM_REQ_NMI, vcpu)) process_nmi(vcpu); if (kvm_check_request(KVM_REQ_PMU, vcpu)) @@ -6573,8 +6573,18 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) if (inject_pending_event(vcpu, req_int_win) != 0) req_immediate_exit = true; - /* enable NMI/IRQ window open exits if needed */ else { + /* Enable NMI/IRQ window open exits if needed. + * + * SMIs have two cases: 1) they can be nested, and + * then there is nothing to do here because RSM will + * cause a vmexit anyway; 2) or the SMI can be pending + * because inject_pending_event has completed the + * injection of an IRQ or NMI from the previous vmexit, + * and then we request an immediate exit to inject the SMI. + */ + if (vcpu->arch.smi_pending && !is_smm(vcpu)) + req_immediate_exit = true; if (vcpu->arch.nmi_pending) kvm_x86_ops->enable_nmi_window(vcpu); if (kvm_cpu_has_injectable_intr(vcpu) || req_int_win) @@ -6625,8 +6635,10 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) kvm_load_guest_xcr0(vcpu); - if (req_immediate_exit) + if (req_immediate_exit) { + kvm_make_request(KVM_REQ_EVENT, vcpu); smp_send_reschedule(vcpu->cpu); + } trace_kvm_entry(vcpu->vcpu_id); wait_lapic_expire(vcpu); @@ -7427,6 +7439,7 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event) { vcpu->arch.hflags = 0; + vcpu->arch.smi_pending = 0; atomic_set(&vcpu->arch.nmi_queued, 0); vcpu->arch.nmi_pending = 0; vcpu->arch.nmi_injected = false; diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c index 8b93e634a..ae97f24a4 100644 --- a/arch/x86/pci/intel_mid_pci.c +++ b/arch/x86/pci/intel_mid_pci.c @@ -37,6 +37,7 @@ /* Quirks for the listed devices */ #define PCI_DEVICE_ID_INTEL_MRFL_MMC 0x1190 +#define PCI_DEVICE_ID_INTEL_MRFL_HSU 0x1191 /* Fixed BAR fields */ #define PCIE_VNDR_CAP_ID_FIXED_BAR 0x00 /* Fixed BAR (TBD) */ @@ -225,13 +226,20 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev) /* Special treatment for IRQ0 */ if (dev->irq == 0) { /* + * Skip HS UART common registers device since it has + * IRQ0 assigned and not used by the kernel. + */ + if (dev->device == PCI_DEVICE_ID_INTEL_MRFL_HSU) + return -EBUSY; + /* * TNG has IRQ0 assigned to eMMC controller. But there * are also other devices with bogus PCI configuration * that have IRQ0 assigned. This check ensures that - * eMMC gets it. + * eMMC gets it. The rest of devices still could be + * enabled without interrupt line being allocated. */ if (dev->device != PCI_DEVICE_ID_INTEL_MRFL_MMC) - return -EBUSY; + return 0; } break; default: diff --git a/block/bio.c b/block/bio.c index 0e4aa42bc..462386908 100644 --- a/block/bio.c +++ b/block/bio.c @@ -579,6 +579,8 @@ void __bio_clone_fast(struct bio *bio, struct bio *bio_src) bio->bi_rw = bio_src->bi_rw; bio->bi_iter = bio_src->bi_iter; bio->bi_io_vec = bio_src->bi_io_vec; + + bio_clone_blkcg_association(bio, bio_src); } EXPORT_SYMBOL(__bio_clone_fast); @@ -684,6 +686,8 @@ integrity_clone: } } + bio_clone_blkcg_association(bio, bio_src); + return bio; } EXPORT_SYMBOL(bio_clone_bioset); @@ -2005,6 +2009,17 @@ void bio_disassociate_task(struct bio *bio) } } +/** + * bio_clone_blkcg_association - clone blkcg association from src to dst bio + * @dst: destination bio + * @src: source bio + */ +void bio_clone_blkcg_association(struct bio *dst, struct bio *src) +{ + if (src->bi_css) + WARN_ON(bio_associate_blkcg(dst, src->bi_css)); +} + #endif /* CONFIG_BLK_CGROUP */ static void __init biovec_init_slabs(void) diff --git a/block/genhd.c b/block/genhd.c index cc778461d..a909bf8ba 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -615,7 +615,7 @@ void add_disk(struct gendisk *disk) /* Register BDI before referencing it from bdev */ bdi = &disk->queue->backing_dev_info; - bdi_register_dev(bdi, disk_devt(disk)); + bdi_register_owner(bdi, disk_to_dev(disk)); blk_register_region(disk_devt(disk), disk->minors, NULL, exact_match, exact_lock, disk); diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 290d6f5be..f4218df00 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -101,6 +101,7 @@ enum ec_command { #define ACPI_EC_UDELAY_POLL 550 /* Wait 1ms for EC transaction polling */ #define ACPI_EC_CLEAR_MAX 100 /* Maximum number of events to query * when trying to clear the EC */ +#define ACPI_EC_MAX_QUERIES 16 /* Maximum number of parallel queries */ enum { EC_FLAGS_QUERY_PENDING, /* Query is pending */ @@ -121,6 +122,10 @@ static unsigned int ec_delay __read_mostly = ACPI_EC_DELAY; module_param(ec_delay, uint, 0644); MODULE_PARM_DESC(ec_delay, "Timeout(ms) waited until an EC command completes"); +static unsigned int ec_max_queries __read_mostly = ACPI_EC_MAX_QUERIES; +module_param(ec_max_queries, uint, 0644); +MODULE_PARM_DESC(ec_max_queries, "Maximum parallel _Qxx evaluations"); + static bool ec_busy_polling __read_mostly; module_param(ec_busy_polling, bool, 0644); MODULE_PARM_DESC(ec_busy_polling, "Use busy polling to advance EC transaction"); @@ -174,6 +179,7 @@ static void acpi_ec_event_processor(struct work_struct *work); struct acpi_ec *boot_ec, *first_ec; EXPORT_SYMBOL(first_ec); +static struct workqueue_struct *ec_query_wq; static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */ static int EC_FLAGS_QUERY_HANDSHAKE; /* Needs QR_EC issued when SCI_EVT set */ @@ -1098,7 +1104,7 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 *data) * work queue execution. */ ec_dbg_evt("Query(0x%02x) scheduled", value); - if (!schedule_work(&q->work)) { + if (!queue_work(ec_query_wq, &q->work)) { ec_dbg_evt("Query(0x%02x) overlapped", value); result = -EBUSY; } @@ -1660,15 +1666,41 @@ static struct acpi_driver acpi_ec_driver = { }, }; +static inline int acpi_ec_query_init(void) +{ + if (!ec_query_wq) { + ec_query_wq = alloc_workqueue("kec_query", 0, + ec_max_queries); + if (!ec_query_wq) + return -ENODEV; + } + return 0; +} + +static inline void acpi_ec_query_exit(void) +{ + if (ec_query_wq) { + destroy_workqueue(ec_query_wq); + ec_query_wq = NULL; + } +} + int __init acpi_ec_init(void) { - int result = 0; + int result; + /* register workqueue for _Qxx evaluations */ + result = acpi_ec_query_init(); + if (result) + goto err_exit; /* Now register the driver for the EC */ result = acpi_bus_register_driver(&acpi_ec_driver); - if (result < 0) - return -ENODEV; + if (result) + goto err_exit; +err_exit: + if (result) + acpi_ec_query_exit(); return result; } @@ -1678,5 +1710,6 @@ static void __exit acpi_ec_exit(void) { acpi_bus_unregister_driver(&acpi_ec_driver); + acpi_ec_query_exit(); } #endif /* 0 */ diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c index cae5385cf..bd46569e0 100644 --- a/drivers/bcma/host_pci.c +++ b/drivers/bcma/host_pci.c @@ -295,6 +295,7 @@ static const struct pci_device_id bcma_pci_bridge_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4359) }, { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4360) }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, 0x4365, PCI_VENDOR_ID_DELL, 0x0016) }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, 0x4365, PCI_VENDOR_ID_FOXCONN, 0xe092) }, { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x43a0) }, { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x43a9) }, { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x43aa) }, diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 84708a5f8..a1dcf12d3 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3663,11 +3663,6 @@ static int floppy_open(struct block_device *bdev, fmode_t mode) opened_bdev[drive] = bdev; - if (!(mode & (FMODE_READ|FMODE_WRITE))) { - res = -EINVAL; - goto out; - } - res = -ENXIO; if (!floppy_track_buffer) { @@ -3711,13 +3706,15 @@ static int floppy_open(struct block_device *bdev, fmode_t mode) if (UFDCS->rawcmd == 1) UFDCS->rawcmd = 2; - UDRS->last_checked = 0; - clear_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags); - check_disk_change(bdev); - if (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags)) - goto out; - if (test_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags)) - goto out; + if (mode & (FMODE_READ|FMODE_WRITE)) { + UDRS->last_checked = 0; + clear_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags); + check_disk_change(bdev); + if (test_bit(FD_DISK_CHANGED_BIT, &UDRS->flags)) + goto out; + if (test_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags)) + goto out; + } res = -EROFS; diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 1fac1e8c7..c3f87b2ff 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -123,6 +123,7 @@ static const struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x13d3, 0x3472) }, { USB_DEVICE(0x13d3, 0x3474) }, { USB_DEVICE(0x13d3, 0x3487) }, + { USB_DEVICE(0x13d3, 0x3490) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -190,6 +191,7 @@ static const struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU22 with sflash firmware */ { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index bc83c2bb5..0e09dec8e 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -237,6 +237,7 @@ static const struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, diff --git a/drivers/char/random.c b/drivers/char/random.c index 87ab9f6b4..d72c6d14a 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -949,6 +949,7 @@ void add_interrupt_randomness(int irq, int irq_flags) /* award one bit for the contents of the fast pool */ credit_entropy_bits(r, credit + 1); } +EXPORT_SYMBOL_GPL(add_interrupt_randomness); #ifdef CONFIG_BLOCK void add_disk_randomness(struct gendisk *disk) @@ -1461,12 +1462,16 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) static ssize_t urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { + static int maxwarn = 10; int ret; - if (unlikely(nonblocking_pool.initialized == 0)) - printk_once(KERN_NOTICE "random: %s urandom read " - "with %d bits of entropy available\n", - current->comm, nonblocking_pool.entropy_total); + if (unlikely(nonblocking_pool.initialized == 0) && + maxwarn > 0) { + maxwarn--; + printk(KERN_NOTICE "random: %s: uninitialized urandom read " + "(%zd bytes read, %d bits of entropy available)\n", + current->comm, nbytes, nonblocking_pool.entropy_total); + } nbytes = min_t(size_t, nbytes, INT_MAX >> (ENTROPY_SHIFT + 3)); ret = extract_entropy_user(&nonblocking_pool, buf, nbytes); @@ -1774,13 +1779,15 @@ int random_int_secret_init(void) return 0; } +static DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash) + __aligned(sizeof(unsigned long)); + /* * Get a random word for internal kernel use only. Similar to urandom but * with the goal of minimal entropy pool depletion. As a result, the random * value is not cryptographically secure but for several uses the cost of * depleting entropy is too high */ -static DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash); unsigned int get_random_int(void) { __u32 *hash; @@ -1850,12 +1857,18 @@ void add_hwgenerator_randomness(const char *buffer, size_t count, { struct entropy_store *poolp = &input_pool; - /* Suspend writing if we're above the trickle threshold. - * We'll be woken up again once below random_write_wakeup_thresh, - * or when the calling thread is about to terminate. - */ - wait_event_interruptible(random_write_wait, kthread_should_stop() || + if (unlikely(nonblocking_pool.initialized == 0)) + poolp = &nonblocking_pool; + else { + /* Suspend writing if we're above the trickle + * threshold. We'll be woken up again once below + * random_write_wakeup_thresh, or when the calling + * thread is about to terminate. + */ + wait_event_interruptible(random_write_wait, + kthread_should_stop() || ENTROPY_BITS(&input_pool) <= random_write_wakeup_bits); + } mix_pool_bytes(poolp, buffer, count); credit_entropy_bits(poolp, entropy); } diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c index a12b31940..e9fd1d83f 100644 --- a/drivers/char/tpm/tpm_crb.c +++ b/drivers/char/tpm/tpm_crb.c @@ -246,7 +246,7 @@ static void __iomem *crb_map_res(struct device *dev, struct crb_priv *priv, /* Detect a 64 bit address on a 32 bit system */ if (start != new_res.start) - return ERR_PTR(-EINVAL); + return (void __iomem *) ERR_PTR(-EINVAL); if (!resource_contains(&priv->res, &new_res)) return devm_ioremap_resource(dev, &new_res); diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c index 8059a8d3e..31b77f713 100644 --- a/drivers/clk/rockchip/clk-rk3399.c +++ b/drivers/clk/rockchip/clk-rk3399.c @@ -586,7 +586,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = { RK3399_CLKGATE_CON(8), 15, GFLAGS), COMPOSITE(SCLK_SPDIF_REC_DPTX, "clk_spdif_rec_dptx", mux_pll_src_cpll_gpll_p, 0, - RK3399_CLKSEL_CON(32), 15, 1, MFLAGS, 0, 5, DFLAGS, + RK3399_CLKSEL_CON(32), 15, 1, MFLAGS, 8, 5, DFLAGS, RK3399_CLKGATE_CON(10), 6, GFLAGS), /* i2s */ COMPOSITE(0, "clk_i2s0_div", mux_pll_src_cpll_gpll_p, 0, diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 970df8986..1ccb70e0c 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -949,7 +949,7 @@ static int core_get_max_pstate(void) if (err) goto skip_tar; - tdp_msr = MSR_CONFIG_TDP_NOMINAL + tdp_ctrl; + tdp_msr = MSR_CONFIG_TDP_NOMINAL + (tdp_ctrl & 0x3); err = rdmsrl_safe(tdp_msr, &tdp_ratio); if (err) goto skip_tar; diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index 10c305b4a..4e0f8e720 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -313,7 +313,6 @@ static struct device_type csrow_attr_type = { * possible dynamic channel DIMM Label attribute files * */ - DEVICE_CHANNEL(ch0_dimm_label, S_IRUGO | S_IWUSR, channel_dimm_label_show, channel_dimm_label_store, 0); DEVICE_CHANNEL(ch1_dimm_label, S_IRUGO | S_IWUSR, @@ -326,6 +325,10 @@ DEVICE_CHANNEL(ch4_dimm_label, S_IRUGO | S_IWUSR, channel_dimm_label_show, channel_dimm_label_store, 4); DEVICE_CHANNEL(ch5_dimm_label, S_IRUGO | S_IWUSR, channel_dimm_label_show, channel_dimm_label_store, 5); +DEVICE_CHANNEL(ch6_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 6); +DEVICE_CHANNEL(ch7_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 7); /* Total possible dynamic DIMM Label attribute file table */ static struct attribute *dynamic_csrow_dimm_attr[] = { @@ -335,6 +338,8 @@ static struct attribute *dynamic_csrow_dimm_attr[] = { &dev_attr_legacy_ch3_dimm_label.attr.attr, &dev_attr_legacy_ch4_dimm_label.attr.attr, &dev_attr_legacy_ch5_dimm_label.attr.attr, + &dev_attr_legacy_ch6_dimm_label.attr.attr, + &dev_attr_legacy_ch7_dimm_label.attr.attr, NULL }; @@ -351,6 +356,10 @@ DEVICE_CHANNEL(ch4_ce_count, S_IRUGO, channel_ce_count_show, NULL, 4); DEVICE_CHANNEL(ch5_ce_count, S_IRUGO, channel_ce_count_show, NULL, 5); +DEVICE_CHANNEL(ch6_ce_count, S_IRUGO, + channel_ce_count_show, NULL, 6); +DEVICE_CHANNEL(ch7_ce_count, S_IRUGO, + channel_ce_count_show, NULL, 7); /* Total possible dynamic ce_count attribute file table */ static struct attribute *dynamic_csrow_ce_count_attr[] = { @@ -360,6 +369,8 @@ static struct attribute *dynamic_csrow_ce_count_attr[] = { &dev_attr_legacy_ch3_ce_count.attr.attr, &dev_attr_legacy_ch4_ce_count.attr.attr, &dev_attr_legacy_ch5_ce_count.attr.attr, + &dev_attr_legacy_ch6_ce_count.attr.attr, + &dev_attr_legacy_ch7_ce_count.attr.attr, NULL }; @@ -371,9 +382,16 @@ static umode_t csrow_dev_is_visible(struct kobject *kobj, if (idx >= csrow->nr_channels) return 0; + + if (idx >= ARRAY_SIZE(dynamic_csrow_ce_count_attr) - 1) { + WARN_ONCE(1, "idx: %d\n", idx); + return 0; + } + /* Only expose populated DIMMs */ if (!csrow->channels[idx]->dimm->nr_pages) return 0; + return attr->mode; } diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c index cdaba13cb..c0f7cce23 100644 --- a/drivers/gpio/gpio-intel-mid.c +++ b/drivers/gpio/gpio-intel-mid.c @@ -17,7 +17,6 @@ * Moorestown platform Langwell chip. * Medfield platform Penwell chip. * Clovertrail platform Cloverview chip. - * Merrifield platform Tangier chip. */ #include <linux/module.h> @@ -64,10 +63,6 @@ enum GPIO_REG { /* intel_mid gpio driver data */ struct intel_mid_gpio_ddata { u16 ngpio; /* number of gpio pins */ - u32 gplr_offset; /* offset of first GPLR register from base */ - u32 flis_base; /* base address of FLIS registers */ - u32 flis_len; /* length of FLIS registers */ - u32 (*get_flis_offset)(int gpio); u32 chip_irq_type; /* chip interrupt type */ }; @@ -252,15 +247,6 @@ static const struct intel_mid_gpio_ddata gpio_cloverview_core = { .chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE, }; -static const struct intel_mid_gpio_ddata gpio_tangier = { - .ngpio = 192, - .gplr_offset = 4, - .flis_base = 0xff0c0000, - .flis_len = 0x8000, - .get_flis_offset = NULL, - .chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE, -}; - static const struct pci_device_id intel_gpio_ids[] = { { /* Lincroft */ @@ -287,11 +273,6 @@ static const struct pci_device_id intel_gpio_ids[] = { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08f7), .driver_data = (kernel_ulong_t)&gpio_cloverview_core, }, - { - /* Tangier */ - PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1199), - .driver_data = (kernel_ulong_t)&gpio_tangier, - }, { 0 } }; MODULE_DEVICE_TABLE(pci, intel_gpio_ids); @@ -401,7 +382,7 @@ static int intel_gpio_probe(struct pci_dev *pdev, spin_lock_init(&priv->lock); pci_set_drvdata(pdev, priv); - retval = gpiochip_add_data(&priv->chip, priv); + retval = devm_gpiochip_add_data(&pdev->dev, &priv->chip, priv); if (retval) { dev_err(&pdev->dev, "gpiochip_add error %d\n", retval); return retval; diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 5e3be32eb..3745de659 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -90,7 +90,7 @@ MODULE_DEVICE_TABLE(acpi, pca953x_acpi_ids); #define MAX_BANK 5 #define BANK_SZ 8 -#define NBANK(chip) (chip->gpio_chip.ngpio / BANK_SZ) +#define NBANK(chip) DIV_ROUND_UP(chip->gpio_chip.ngpio, BANK_SZ) struct pca953x_chip { unsigned gpio_start; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c index 9df1bcb35..983175363 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c @@ -551,28 +551,19 @@ int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev) le16_to_cpu(firmware_info->info.usReferenceClock); ppll->reference_div = 0; - if (crev < 2) - ppll->pll_out_min = - le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output); - else - ppll->pll_out_min = - le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output); + ppll->pll_out_min = + le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output); ppll->pll_out_max = le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output); - if (crev >= 4) { - ppll->lcd_pll_out_min = - le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100; - if (ppll->lcd_pll_out_min == 0) - ppll->lcd_pll_out_min = ppll->pll_out_min; - ppll->lcd_pll_out_max = - le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100; - if (ppll->lcd_pll_out_max == 0) - ppll->lcd_pll_out_max = ppll->pll_out_max; - } else { + ppll->lcd_pll_out_min = + le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100; + if (ppll->lcd_pll_out_min == 0) ppll->lcd_pll_out_min = ppll->pll_out_min; + ppll->lcd_pll_out_max = + le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100; + if (ppll->lcd_pll_out_max == 0) ppll->lcd_pll_out_max = ppll->pll_out_max; - } if (ppll->pll_out_min == 0) ppll->pll_out_min = 64800; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c index 35a1248aa..1b4c069f7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c @@ -10,6 +10,7 @@ #include <linux/slab.h> #include <linux/acpi.h> #include <linux/pci.h> +#include <linux/delay.h> #include "amd_acpi.h" @@ -259,6 +260,10 @@ static int amdgpu_atpx_set_discrete_state(struct amdgpu_atpx *atpx, u8 state) if (!info) return -EIO; kfree(info); + + /* 200ms delay is required after off */ + if (state == 0) + msleep(200); } return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c index cb07da411..ff0b55a65 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c @@ -1690,7 +1690,6 @@ amdgpu_connector_add(struct amdgpu_device *adev, DRM_MODE_SCALE_NONE); /* no HPD on analog connectors */ amdgpu_connector->hpd.hpd = AMDGPU_HPD_NONE; - connector->polled = DRM_CONNECTOR_POLL_CONNECT; connector->interlace_allowed = true; connector->doublescan_allowed = true; break; @@ -1893,8 +1892,10 @@ amdgpu_connector_add(struct amdgpu_device *adev, } if (amdgpu_connector->hpd.hpd == AMDGPU_HPD_NONE) { - if (i2c_bus->valid) - connector->polled = DRM_CONNECTOR_POLL_CONNECT; + if (i2c_bus->valid) { + connector->polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; + } } else connector->polled = DRM_CONNECTOR_POLL_HPD; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 6e920086a..b7f5650d8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1841,7 +1841,23 @@ int amdgpu_resume_kms(struct drm_device *dev, bool resume, bool fbcon) } drm_kms_helper_poll_enable(dev); + + /* + * Most of the connector probing functions try to acquire runtime pm + * refs to ensure that the GPU is powered on when connector polling is + * performed. Since we're calling this from a runtime PM callback, + * trying to acquire rpm refs will cause us to deadlock. + * + * Since we're guaranteed to be holding the rpm lock, it's safe to + * temporarily disable the rpm helpers so this doesn't deadlock us. + */ +#ifdef CONFIG_PM + dev->dev->power.disable_depth++; +#endif drm_helper_hpd_irq_event(dev); +#ifdef CONFIG_PM + dev->dev->power.disable_depth--; +#endif if (fbcon) { amdgpu_fbdev_set_suspend(adev, 0); diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c index 48b6bd671..c32eca261 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c @@ -98,6 +98,7 @@ amdgpu_atombios_encoder_set_backlight_level(struct amdgpu_encoder *amdgpu_encode case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2: + case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3: if (dig->backlight_level == 0) amdgpu_atombios_encoder_setup_dig_transmitter(encoder, ATOM_TRANSMITTER_ACTION_LCD_BLOFF, 0, 0); diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c index 233f38cc2..e05402728 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c @@ -165,6 +165,7 @@ static int gmc_v7_0_init_microcode(struct amdgpu_device *adev) break; case CHIP_KAVERI: case CHIP_KABINI: + case CHIP_MULLINS: return 0; default: BUG(); } diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c index 90b35c5c1..ffc7c0dd3 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c @@ -592,12 +592,12 @@ bool atomctrl_get_pp_assign_pin( const uint32_t pinId, pp_atomctrl_gpio_pin_assignment *gpio_pin_assignment) { - bool bRet = 0; + bool bRet = false; ATOM_GPIO_PIN_LUT *gpio_lookup_table = get_gpio_lookup_table(hwmgr->device); PP_ASSERT_WITH_CODE((NULL != gpio_lookup_table), - "Could not find GPIO lookup Table in BIOS.", return -1); + "Could not find GPIO lookup Table in BIOS.", return false); bRet = atomctrl_lookup_gpio_pin(gpio_lookup_table, pinId, gpio_pin_assignment); diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c index 059f7c39c..a7916e5f8 100644 --- a/drivers/gpu/drm/drm_cache.c +++ b/drivers/gpu/drm/drm_cache.c @@ -136,6 +136,7 @@ drm_clflush_virt_range(void *addr, unsigned long length) mb(); for (; addr < end; addr += size) clflushopt(addr); + clflushopt(end - 1); /* force serialisation */ mb(); return; } diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index eeaf5a7c3..67b28f801 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -203,7 +203,7 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request, ret = aux->transfer(aux, &msg); - if (ret > 0) { + if (ret >= 0) { native_reply = msg.reply & DP_AUX_NATIVE_REPLY_MASK; if (native_reply == DP_AUX_NATIVE_REPLY_ACK) { if (ret == size) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 7df26d4b7..2cb472b99 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -74,6 +74,8 @@ #define EDID_QUIRK_FORCE_8BPC (1 << 8) /* Force 12bpc */ #define EDID_QUIRK_FORCE_12BPC (1 << 9) +/* Force 6bpc */ +#define EDID_QUIRK_FORCE_6BPC (1 << 10) struct detailed_mode_closure { struct drm_connector *connector; @@ -100,6 +102,9 @@ static struct edid_quirk { /* Unknown Acer */ { "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED }, + /* AEO model 0 reports 8 bpc, but is a 6 bpc panel */ + { "AEO", 0, EDID_QUIRK_FORCE_6BPC }, + /* Belinea 10 15 55 */ { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 }, { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 }, @@ -4082,6 +4087,9 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid) drm_add_display_info(edid, &connector->display_info, connector); + if (quirks & EDID_QUIRK_FORCE_6BPC) + connector->display_info.bpc = 6; + if (quirks & EDID_QUIRK_FORCE_8BPC) connector->display_info.bpc = 8; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 489c72885..3378d42ce 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2593,6 +2593,8 @@ struct drm_i915_cmd_table { #define SKL_REVID_D0 0x3 #define SKL_REVID_E0 0x4 #define SKL_REVID_F0 0x5 +#define SKL_REVID_G0 0x6 +#define SKL_REVID_H0 0x7 #define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until)) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 720aab9a5..5012c5be2 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1672,6 +1672,9 @@ enum skl_disp_power_wells { #define GEN7_TLB_RD_ADDR _MMIO(0x4700) +#define GEN9_GAMT_ECO_REG_RW_IA _MMIO(0x4ab0) +#define GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS (1<<18) + #define GAMT_CHKN_BIT_REG _MMIO(0x4ab8) #define GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING (1<<28) @@ -7543,6 +7546,8 @@ enum skl_disp_power_wells { #define CDCLK_FREQ _MMIO(0x46200) +#define CDCLK_FREQ _MMIO(0x46200) + #define _TRANSA_MSA_MISC 0x60410 #define _TRANSB_MSA_MISC 0x61410 #define _TRANSC_MSA_MISC 0x62410 diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3074c56a6..32893195d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9700,6 +9700,8 @@ static void broadwell_set_cdclk(struct drm_device *dev, int cdclk) I915_WRITE(CDCLK_FREQ, DIV_ROUND_CLOSEST(cdclk, 1000) - 1); + I915_WRITE(CDCLK_FREQ, DIV_ROUND_CLOSEST(cdclk, 1000) - 1); + intel_update_cdclk(dev); WARN(cdclk != dev_priv->cdclk_freq, @@ -12095,21 +12097,11 @@ connected_sink_compute_bpp(struct intel_connector *connector, pipe_config->pipe_bpp = connector->base.display_info.bpc*3; } - /* Clamp bpp to default limit on screens without EDID 1.4 */ - if (connector->base.display_info.bpc == 0) { - int type = connector->base.connector_type; - int clamp_bpp = 24; - - /* Fall back to 18 bpp when DP sink capability is unknown. */ - if (type == DRM_MODE_CONNECTOR_DisplayPort || - type == DRM_MODE_CONNECTOR_eDP) - clamp_bpp = 18; - - if (bpp > clamp_bpp) { - DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of %d\n", - bpp, clamp_bpp); - pipe_config->pipe_bpp = clamp_bpp; - } + /* Clamp bpp to 8 on screens without EDID 1.4 */ + if (connector->base.display_info.bpc == 0 && bpp > 24) { + DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n", + bpp); + pipe_config->pipe_bpp = 24; } } diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 68a1f4cc2..64dd842ae 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4672,7 +4672,8 @@ void gen6_rps_idle(struct drm_i915_private *dev_priv) else gen6_set_rps(dev_priv->dev, dev_priv->rps.idle_freq); dev_priv->rps.last_adj = 0; - I915_WRITE(GEN6_PMINTRMSK, 0xffffffff); + I915_WRITE(GEN6_PMINTRMSK, + gen6_sanitize_rps_pm_mask(dev_priv, ~0)); } mutex_unlock(&dev_priv->rps.hw_lock); diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 68c5af079..9d778f3ab 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1135,6 +1135,11 @@ static int skl_init_workarounds(struct intel_engine_cs *engine) /* WaDisableGafsUnitClkGating:skl */ WA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE); + /* WaInPlaceDecompressionHang:skl */ + if (IS_SKL_REVID(dev_priv, SKL_REVID_H0, REVID_FOREVER)) + WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA, + GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS); + /* WaDisableLSQCROPERFforOCL:skl */ ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4); if (ret) @@ -1194,6 +1199,11 @@ static int bxt_init_workarounds(struct intel_engine_cs *engine) WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2, GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION); + /* WaInPlaceDecompressionHang:bxt */ + if (IS_BXT_REVID(dev_priv, BXT_REVID_C0, REVID_FOREVER)) + WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA, + GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS); + return 0; } @@ -1241,6 +1251,10 @@ static int kbl_init_workarounds(struct intel_engine_cs *engine) GEN7_HALF_SLICE_CHICKEN1, GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE); + /* WaInPlaceDecompressionHang:kbl */ + WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA, + GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS); + /* WaDisableLSQCROPERFforOCL:kbl */ ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4); if (ret) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 11f8dd9c0..d6c134b01 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -324,7 +324,16 @@ static int nouveau_drm_probe(struct pci_dev *pdev, !vga_switcheroo_handler_flags()) return -EPROBE_DEFER; - /* remove conflicting drivers (vesafb, efifb etc) */ + /* We need to check that the chipset is supported before booting + * fbdev off the hardware, as there's no way to put it back. + */ + ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device); + if (ret) + return ret; + + nvkm_device_del(&device); + + /* Remove conflicting drivers (vesafb, efifb etc). */ aper = alloc_apertures(3); if (!aper) return -ENOMEM; diff --git a/drivers/gpu/drm/nouveau/nv04_fbcon.c b/drivers/gpu/drm/nouveau/nv04_fbcon.c index 7d9248b8c..da8fd5ff9 100644 --- a/drivers/gpu/drm/nouveau/nv04_fbcon.c +++ b/drivers/gpu/drm/nouveau/nv04_fbcon.c @@ -107,11 +107,11 @@ nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image) ((image->dx + image->width) & 0xffff)); OUT_RING(chan, bg); OUT_RING(chan, fg); - OUT_RING(chan, (image->height << 16) | image->width); + OUT_RING(chan, (image->height << 16) | ALIGN(image->width, 8)); OUT_RING(chan, (image->height << 16) | image->width); OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff)); - dsize = ALIGN(image->width * image->height, 32) >> 5; + dsize = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5; while (dsize) { int iter_len = dsize > 128 ? 128 : dsize; diff --git a/drivers/gpu/drm/nouveau/nv50_fbcon.c b/drivers/gpu/drm/nouveau/nv50_fbcon.c index 1aeb698e9..af3d3c494 100644 --- a/drivers/gpu/drm/nouveau/nv50_fbcon.c +++ b/drivers/gpu/drm/nouveau/nv50_fbcon.c @@ -125,7 +125,7 @@ nv50_fbcon_imageblit(struct fb_info *info, const struct fb_image *image) OUT_RING(chan, 0); OUT_RING(chan, image->dy); - dwords = ALIGN(image->width * image->height, 32) >> 5; + dwords = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5; while (dwords) { int push = dwords > 2047 ? 2047 : dwords; diff --git a/drivers/gpu/drm/nouveau/nvc0_fbcon.c b/drivers/gpu/drm/nouveau/nvc0_fbcon.c index 839f4c8c1..054b6a056 100644 --- a/drivers/gpu/drm/nouveau/nvc0_fbcon.c +++ b/drivers/gpu/drm/nouveau/nvc0_fbcon.c @@ -125,7 +125,7 @@ nvc0_fbcon_imageblit(struct fb_info *info, const struct fb_image *image) OUT_RING (chan, 0); OUT_RING (chan, image->dy); - dwords = ALIGN(image->width * image->height, 32) >> 5; + dwords = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5; while (dwords) { int push = dwords > 2047 ? 2047 : dwords; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c index 69de8c625..f1e15a4d4 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c @@ -76,8 +76,8 @@ nv30_gr_chan_new(struct nvkm_gr *base, struct nvkm_fifo_chan *fifoch, nvkm_wo32(chan->inst, i, 0x00040004); for (i = 0x1f18; i <= 0x3088 ; i += 16) { nvkm_wo32(chan->inst, i + 0, 0x10700ff9); - nvkm_wo32(chan->inst, i + 1, 0x0436086c); - nvkm_wo32(chan->inst, i + 2, 0x000c001b); + nvkm_wo32(chan->inst, i + 4, 0x0436086c); + nvkm_wo32(chan->inst, i + 8, 0x000c001b); } for (i = 0x30b8; i < 0x30c8; i += 4) nvkm_wo32(chan->inst, i, 0x0000ffff); diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c index 2207dac23..300f5ed5d 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c @@ -75,8 +75,8 @@ nv34_gr_chan_new(struct nvkm_gr *base, struct nvkm_fifo_chan *fifoch, nvkm_wo32(chan->inst, i, 0x00040004); for (i = 0x15ac; i <= 0x271c ; i += 16) { nvkm_wo32(chan->inst, i + 0, 0x10700ff9); - nvkm_wo32(chan->inst, i + 1, 0x0436086c); - nvkm_wo32(chan->inst, i + 2, 0x000c001b); + nvkm_wo32(chan->inst, i + 4, 0x0436086c); + nvkm_wo32(chan->inst, i + 8, 0x000c001b); } for (i = 0x274c; i < 0x275c; i += 4) nvkm_wo32(chan->inst, i, 0x0000ffff); diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 587cae4e7..56bb758f4 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -120,6 +120,7 @@ atombios_set_backlight_level(struct radeon_encoder *radeon_encoder, u8 level) case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2: + case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3: if (dig->backlight_level == 0) atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_LCD_BLOFF, 0, 0); else { diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index f8097a0e7..5df3ec730 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1155,7 +1155,7 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) le16_to_cpu(firmware_info->info.usReferenceClock); p1pll->reference_div = 0; - if (crev < 2) + if ((frev < 2) && (crev < 2)) p1pll->pll_out_min = le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output); else @@ -1164,7 +1164,7 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) p1pll->pll_out_max = le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output); - if (crev >= 4) { + if (((frev < 2) && (crev >= 4)) || (frev >= 2)) { p1pll->lcd_pll_out_min = le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100; if (p1pll->lcd_pll_out_min == 0) diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index 95f4fea89..1b3f4e51f 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -10,6 +10,7 @@ #include <linux/slab.h> #include <linux/acpi.h> #include <linux/pci.h> +#include <linux/delay.h> #include "radeon_acpi.h" @@ -258,6 +259,10 @@ static int radeon_atpx_set_discrete_state(struct radeon_atpx *atpx, u8 state) if (!info) return -EIO; kfree(info); + + /* 200ms delay is required after off */ + if (state == 0) + msleep(200); } return 0; } diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 81a63d7f5..b79f3b002 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -2064,7 +2064,6 @@ radeon_add_atom_connector(struct drm_device *dev, RADEON_OUTPUT_CSC_BYPASS); /* no HPD on analog connectors */ radeon_connector->hpd.hpd = RADEON_HPD_NONE; - connector->polled = DRM_CONNECTOR_POLL_CONNECT; connector->interlace_allowed = true; connector->doublescan_allowed = true; break; @@ -2314,8 +2313,10 @@ radeon_add_atom_connector(struct drm_device *dev, } if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) { - if (i2c_bus->valid) - connector->polled = DRM_CONNECTOR_POLL_CONNECT; + if (i2c_bus->valid) { + connector->polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; + } } else connector->polled = DRM_CONNECTOR_POLL_HPD; @@ -2391,7 +2392,6 @@ radeon_add_legacy_connector(struct drm_device *dev, 1); /* no HPD on analog connectors */ radeon_connector->hpd.hpd = RADEON_HPD_NONE; - connector->polled = DRM_CONNECTOR_POLL_CONNECT; connector->interlace_allowed = true; connector->doublescan_allowed = true; break; @@ -2476,10 +2476,13 @@ radeon_add_legacy_connector(struct drm_device *dev, } if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) { - if (i2c_bus->valid) - connector->polled = DRM_CONNECTOR_POLL_CONNECT; + if (i2c_bus->valid) { + connector->polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; + } } else connector->polled = DRM_CONNECTOR_POLL_HPD; + connector->display_info.subpixel_order = subpixel_order; drm_connector_register(connector); } diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 1c4d5b5a7..b1673236c 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1048,6 +1048,17 @@ static void vop_crtc_destroy(struct drm_crtc *crtc) drm_crtc_cleanup(crtc); } +static void vop_crtc_reset(struct drm_crtc *crtc) +{ + if (crtc->state) + __drm_atomic_helper_crtc_destroy_state(crtc->state); + kfree(crtc->state); + + crtc->state = kzalloc(sizeof(struct rockchip_crtc_state), GFP_KERNEL); + if (crtc->state) + crtc->state->crtc = crtc; +} + static struct drm_crtc_state *vop_crtc_duplicate_state(struct drm_crtc *crtc) { struct rockchip_crtc_state *rockchip_state; @@ -1073,7 +1084,7 @@ static const struct drm_crtc_funcs vop_crtc_funcs = { .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, .destroy = vop_crtc_destroy, - .reset = drm_atomic_helper_crtc_reset, + .reset = vop_crtc_reset, .atomic_duplicate_state = vop_crtc_duplicate_state, .atomic_destroy_state = vop_crtc_destroy_state, }; diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c index 16b6f11a0..99ec3ff75 100644 --- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -51,10 +51,26 @@ struct uhid_device { u32 report_id; u32 report_type; struct uhid_event report_buf; + struct work_struct worker; }; static struct miscdevice uhid_misc; +static void uhid_device_add_worker(struct work_struct *work) +{ + struct uhid_device *uhid = container_of(work, struct uhid_device, worker); + int ret; + + ret = hid_add_device(uhid->hid); + if (ret) { + hid_err(uhid->hid, "Cannot register HID device: error %d\n", ret); + + hid_destroy_device(uhid->hid); + uhid->hid = NULL; + uhid->running = false; + } +} + static void uhid_queue(struct uhid_device *uhid, struct uhid_event *ev) { __u8 newhead; @@ -498,18 +514,14 @@ static int uhid_dev_create2(struct uhid_device *uhid, uhid->hid = hid; uhid->running = true; - ret = hid_add_device(hid); - if (ret) { - hid_err(hid, "Cannot register HID device\n"); - goto err_hid; - } + /* Adding of a HID device is done through a worker, to allow HID drivers + * which use feature requests during .probe to work, without they would + * be blocked on devlock, which is held by uhid_char_write. + */ + schedule_work(&uhid->worker); return 0; -err_hid: - hid_destroy_device(hid); - uhid->hid = NULL; - uhid->running = false; err_free: kfree(uhid->rd_data); uhid->rd_data = NULL; @@ -550,6 +562,8 @@ static int uhid_dev_destroy(struct uhid_device *uhid) uhid->running = false; wake_up_interruptible(&uhid->report_wait); + cancel_work_sync(&uhid->worker); + hid_destroy_device(uhid->hid); kfree(uhid->rd_data); @@ -612,6 +626,7 @@ static int uhid_char_open(struct inode *inode, struct file *file) init_waitqueue_head(&uhid->waitq); init_waitqueue_head(&uhid->report_wait); uhid->running = false; + INIT_WORK(&uhid->worker, uhid_device_add_worker); file->private_data = uhid; nonseekable_open(inode, file); diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 952f20fdc..e82f7e1c2 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -42,6 +42,7 @@ #include <linux/screen_info.h> #include <linux/kdebug.h> #include <linux/efi.h> +#include <linux/random.h> #include "hyperv_vmbus.h" static struct acpi_device *hv_acpi_dev; @@ -806,6 +807,8 @@ static void vmbus_isr(void) else tasklet_schedule(hv_context.msg_dpc[cpu]); } + + add_interrupt_randomness(HYPERVISOR_CALLBACK_VECTOR, 0); } diff --git a/drivers/i2c/busses/i2c-efm32.c b/drivers/i2c/busses/i2c-efm32.c index 8eff62738..e253598d7 100644 --- a/drivers/i2c/busses/i2c-efm32.c +++ b/drivers/i2c/busses/i2c-efm32.c @@ -433,7 +433,7 @@ static int efm32_i2c_probe(struct platform_device *pdev) ret = request_irq(ddata->irq, efm32_i2c_irq, 0, DRIVER_NAME, ddata); if (ret < 0) { dev_err(&pdev->dev, "failed to request irq (%d)\n", ret); - return ret; + goto err_disable_clk; } ret = i2c_add_adapter(&ddata->adapter); diff --git a/drivers/infiniband/core/rw.c b/drivers/infiniband/core/rw.c index 1eb9b1294..dbfd854c3 100644 --- a/drivers/infiniband/core/rw.c +++ b/drivers/infiniband/core/rw.c @@ -58,19 +58,13 @@ static inline bool rdma_rw_io_needs_mr(struct ib_device *dev, u8 port_num, return false; } -static inline u32 rdma_rw_max_sge(struct ib_device *dev, - enum dma_data_direction dir) -{ - return dir == DMA_TO_DEVICE ? - dev->attrs.max_sge : dev->attrs.max_sge_rd; -} - static inline u32 rdma_rw_fr_page_list_len(struct ib_device *dev) { /* arbitrary limit to avoid allocating gigantic resources */ return min_t(u32, dev->attrs.max_fast_reg_page_list_len, 256); } +/* Caller must have zero-initialized *reg. */ static int rdma_rw_init_one_mr(struct ib_qp *qp, u8 port_num, struct rdma_rw_reg_ctx *reg, struct scatterlist *sg, u32 sg_cnt, u32 offset) @@ -114,6 +108,7 @@ static int rdma_rw_init_mr_wrs(struct rdma_rw_ctx *ctx, struct ib_qp *qp, u8 port_num, struct scatterlist *sg, u32 sg_cnt, u32 offset, u64 remote_addr, u32 rkey, enum dma_data_direction dir) { + struct rdma_rw_reg_ctx *prev = NULL; u32 pages_per_mr = rdma_rw_fr_page_list_len(qp->pd->device); int i, j, ret = 0, count = 0; @@ -125,7 +120,6 @@ static int rdma_rw_init_mr_wrs(struct rdma_rw_ctx *ctx, struct ib_qp *qp, } for (i = 0; i < ctx->nr_ops; i++) { - struct rdma_rw_reg_ctx *prev = i ? &ctx->reg[i - 1] : NULL; struct rdma_rw_reg_ctx *reg = &ctx->reg[i]; u32 nents = min(sg_cnt, pages_per_mr); @@ -162,9 +156,13 @@ static int rdma_rw_init_mr_wrs(struct rdma_rw_ctx *ctx, struct ib_qp *qp, sg_cnt -= nents; for (j = 0; j < nents; j++) sg = sg_next(sg); + prev = reg; offset = 0; } + if (prev) + prev->wr.wr.next = NULL; + ctx->type = RDMA_RW_MR; return count; @@ -181,7 +179,8 @@ static int rdma_rw_init_map_wrs(struct rdma_rw_ctx *ctx, struct ib_qp *qp, u64 remote_addr, u32 rkey, enum dma_data_direction dir) { struct ib_device *dev = qp->pd->device; - u32 max_sge = rdma_rw_max_sge(dev, dir); + u32 max_sge = dir == DMA_TO_DEVICE ? qp->max_write_sge : + qp->max_read_sge; struct ib_sge *sge; u32 total_len = 0, i, j; @@ -205,11 +204,10 @@ static int rdma_rw_init_map_wrs(struct rdma_rw_ctx *ctx, struct ib_qp *qp, rdma_wr->wr.opcode = IB_WR_RDMA_READ; rdma_wr->remote_addr = remote_addr + total_len; rdma_wr->rkey = rkey; + rdma_wr->wr.num_sge = nr_sge; rdma_wr->wr.sg_list = sge; for (j = 0; j < nr_sge; j++, sg = sg_next(sg)) { - rdma_wr->wr.num_sge++; - sge->addr = ib_sg_dma_address(dev, sg) + offset; sge->length = ib_sg_dma_len(dev, sg) - offset; sge->lkey = qp->pd->local_dma_lkey; @@ -220,8 +218,8 @@ static int rdma_rw_init_map_wrs(struct rdma_rw_ctx *ctx, struct ib_qp *qp, offset = 0; } - if (i + 1 < ctx->nr_ops) - rdma_wr->wr.next = &ctx->map.wrs[i + 1].wr; + rdma_wr->wr.next = i + 1 < ctx->nr_ops ? + &ctx->map.wrs[i + 1].wr : NULL; } ctx->type = RDMA_RW_MULTI_WR; diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 6298f54b4..e39a0b597 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -814,6 +814,15 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd, } } + /* + * Note: all hw drivers guarantee that max_send_sge is lower than + * the device RDMA WRITE SGE limit but not all hw drivers ensure that + * max_send_sge <= max_sge_rd. + */ + qp->max_write_sge = qp_init_attr->cap.max_send_sge; + qp->max_read_sge = min_t(u32, qp_init_attr->cap.max_send_sge, + device->attrs.max_sge_rd); + return qp; } EXPORT_SYMBOL(ib_create_qp); diff --git a/drivers/infiniband/hw/mlx5/gsi.c b/drivers/infiniband/hw/mlx5/gsi.c index 53e03c8ed..79e630946 100644 --- a/drivers/infiniband/hw/mlx5/gsi.c +++ b/drivers/infiniband/hw/mlx5/gsi.c @@ -69,15 +69,6 @@ static bool mlx5_ib_deth_sqpn_cap(struct mlx5_ib_dev *dev) return MLX5_CAP_GEN(dev->mdev, set_deth_sqpn); } -static u32 next_outstanding(struct mlx5_ib_gsi_qp *gsi, u32 index) -{ - return ++index % gsi->cap.max_send_wr; -} - -#define for_each_outstanding_wr(gsi, index) \ - for (index = gsi->outstanding_ci; index != gsi->outstanding_pi; \ - index = next_outstanding(gsi, index)) - /* Call with gsi->lock locked */ static void generate_completions(struct mlx5_ib_gsi_qp *gsi) { @@ -85,8 +76,9 @@ static void generate_completions(struct mlx5_ib_gsi_qp *gsi) struct mlx5_ib_gsi_wr *wr; u32 index; - for_each_outstanding_wr(gsi, index) { - wr = &gsi->outstanding_wrs[index]; + for (index = gsi->outstanding_ci; index != gsi->outstanding_pi; + index++) { + wr = &gsi->outstanding_wrs[index % gsi->cap.max_send_wr]; if (!wr->completed) break; @@ -430,8 +422,9 @@ static int mlx5_ib_add_outstanding_wr(struct mlx5_ib_gsi_qp *gsi, return -ENOMEM; } - gsi_wr = &gsi->outstanding_wrs[gsi->outstanding_pi]; - gsi->outstanding_pi = next_outstanding(gsi, gsi->outstanding_pi); + gsi_wr = &gsi->outstanding_wrs[gsi->outstanding_pi % + gsi->cap.max_send_wr]; + gsi->outstanding_pi++; if (!wc) { memset(&gsi_wr->wc, 0, sizeof(gsi_wr->wc)); diff --git a/drivers/infiniband/sw/rdmavt/Kconfig b/drivers/infiniband/sw/rdmavt/Kconfig index 11aa6a34b..1da8d01a6 100644 --- a/drivers/infiniband/sw/rdmavt/Kconfig +++ b/drivers/infiniband/sw/rdmavt/Kconfig @@ -1,6 +1,5 @@ config INFINIBAND_RDMAVT tristate "RDMA verbs transport library" depends on 64BIT - default m ---help--- This is a common software verbs provider for RDMA networks. diff --git a/drivers/infiniband/sw/rdmavt/cq.c b/drivers/infiniband/sw/rdmavt/cq.c index 6ca6fa80d..f2f229efb 100644 --- a/drivers/infiniband/sw/rdmavt/cq.c +++ b/drivers/infiniband/sw/rdmavt/cq.c @@ -510,6 +510,7 @@ int rvt_driver_cq_init(struct rvt_dev_info *rdi) if (rdi->worker) return 0; + spin_lock_init(&rdi->n_cqs_lock); rdi->worker = kzalloc(sizeof(*rdi->worker), GFP_KERNEL); if (!rdi->worker) return -ENOMEM; diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 4a4155640..9a3b954e8 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -1601,6 +1601,7 @@ static int srpt_create_ch_ib(struct srpt_rdma_ch *ch) struct ib_qp_init_attr *qp_init; struct srpt_port *sport = ch->sport; struct srpt_device *sdev = sport->sdev; + const struct ib_device_attr *attrs = &sdev->device->attrs; u32 srp_sq_size = sport->port_attrib.srp_sq_size; int ret; @@ -1638,7 +1639,7 @@ retry: */ qp_init->cap.max_send_wr = srp_sq_size / 2; qp_init->cap.max_rdma_ctxs = srp_sq_size / 2; - qp_init->cap.max_send_sge = SRPT_DEF_SG_PER_WQE; + qp_init->cap.max_send_sge = min(attrs->max_sge, SRPT_MAX_SG_PER_WQE); qp_init->port_num = ch->sport->port; ch->qp = ib_create_qp(sdev->pd, qp_init); diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.h b/drivers/infiniband/ulp/srpt/ib_srpt.h index 389030487..581878782 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.h +++ b/drivers/infiniband/ulp/srpt/ib_srpt.h @@ -106,7 +106,11 @@ enum { SRP_LOGIN_RSP_MULTICHAN_MAINTAINED = 0x2, SRPT_DEF_SG_TABLESIZE = 128, - SRPT_DEF_SG_PER_WQE = 16, + /* + * An experimentally determined value that avoids that QP creation + * fails due to "swiotlb buffer is full" on systems using the swiotlb. + */ + SRPT_MAX_SG_PER_WQE = 16, MIN_SRPT_SQ_SIZE = 16, DEF_SRPT_SQ_SIZE = 4096, diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index bc72022a6..31d10a7e9 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -4,7 +4,8 @@ * Copyright (c) 2013 ELAN Microelectronics Corp. * * Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw> - * Version: 1.6.0 + * Author: KT Liao <kt.liao@emc.com.tw> + * Version: 1.6.2 * * Based on cyapa driver: * copyright (c) 2011-2012 Cypress Semiconductor, Inc. @@ -40,7 +41,7 @@ #include "elan_i2c.h" #define DRIVER_NAME "elan_i2c" -#define ELAN_DRIVER_VERSION "1.6.1" +#define ELAN_DRIVER_VERSION "1.6.2" #define ELAN_VENDOR_ID 0x04f3 #define ETP_MAX_PRESSURE 255 #define ETP_FWIDTH_REDUCE 90 @@ -199,9 +200,41 @@ static int elan_sleep(struct elan_tp_data *data) return error; } +static int elan_query_product(struct elan_tp_data *data) +{ + int error; + + error = data->ops->get_product_id(data->client, &data->product_id); + if (error) + return error; + + error = data->ops->get_sm_version(data->client, &data->ic_type, + &data->sm_version); + if (error) + return error; + + return 0; +} + +static int elan_check_ASUS_special_fw(struct elan_tp_data *data) +{ + if (data->ic_type != 0x0E) + return false; + + switch (data->product_id) { + case 0x05 ... 0x07: + case 0x09: + case 0x13: + return true; + default: + return false; + } +} + static int __elan_initialize(struct elan_tp_data *data) { struct i2c_client *client = data->client; + bool woken_up = false; int error; error = data->ops->initialize(client); @@ -210,6 +243,27 @@ static int __elan_initialize(struct elan_tp_data *data) return error; } + error = elan_query_product(data); + if (error) + return error; + + /* + * Some ASUS devices were shipped with firmware that requires + * touchpads to be woken up first, before attempting to switch + * them into absolute reporting mode. + */ + if (elan_check_ASUS_special_fw(data)) { + error = data->ops->sleep_control(client, false); + if (error) { + dev_err(&client->dev, + "failed to wake device up: %d\n", error); + return error; + } + + msleep(200); + woken_up = true; + } + data->mode |= ETP_ENABLE_ABS; error = data->ops->set_mode(client, data->mode); if (error) { @@ -218,11 +272,13 @@ static int __elan_initialize(struct elan_tp_data *data) return error; } - error = data->ops->sleep_control(client, false); - if (error) { - dev_err(&client->dev, - "failed to wake device up: %d\n", error); - return error; + if (!woken_up) { + error = data->ops->sleep_control(client, false); + if (error) { + dev_err(&client->dev, + "failed to wake device up: %d\n", error); + return error; + } } return 0; @@ -248,10 +304,6 @@ static int elan_query_device_info(struct elan_tp_data *data) { int error; - error = data->ops->get_product_id(data->client, &data->product_id); - if (error) - return error; - error = data->ops->get_version(data->client, false, &data->fw_version); if (error) return error; @@ -261,11 +313,6 @@ static int elan_query_device_info(struct elan_tp_data *data) if (error) return error; - error = data->ops->get_sm_version(data->client, &data->ic_type, - &data->sm_version); - if (error) - return error; - error = data->ops->get_version(data->client, true, &data->iap_version); if (error) return error; diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c index 880c40b23..b7e8c11a6 100644 --- a/drivers/input/touchscreen/sur40.c +++ b/drivers/input/touchscreen/sur40.c @@ -126,7 +126,7 @@ struct sur40_image_header { #define VIDEO_PACKET_SIZE 16384 /* polling interval (ms) */ -#define POLL_INTERVAL 4 +#define POLL_INTERVAL 1 /* maximum number of contacts FIXME: this is a guess? */ #define MAX_CONTACTS 64 @@ -448,7 +448,7 @@ static void sur40_process_video(struct sur40_state *sur40) /* return error if streaming was stopped in the meantime */ if (sur40->sequence == -1) - goto err_poll; + return; /* mark as finished */ new_buf->vb.vb2_buf.timestamp = ktime_get_ns(); @@ -736,6 +736,7 @@ static int sur40_start_streaming(struct vb2_queue *vq, unsigned int count) static void sur40_stop_streaming(struct vb2_queue *vq) { struct sur40_state *sur40 = vb2_get_drv_priv(vq); + vb2_wait_for_all_buffers(vq); sur40->sequence = -1; /* Release all active buffers */ diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 634f63639..2511c8b6a 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -466,9 +466,11 @@ static void init_iommu_group(struct device *dev) if (!domain) goto out; - dma_domain = to_pdomain(domain)->priv; + if (to_pdomain(domain)->flags == PD_DMA_OPS_MASK) { + dma_domain = to_pdomain(domain)->priv; + init_unity_mappings_for_device(dev, dma_domain); + } - init_unity_mappings_for_device(dev, dma_domain); out: iommu_group_put(group); } @@ -2512,8 +2514,15 @@ static void update_device_table(struct protection_domain *domain) { struct iommu_dev_data *dev_data; - list_for_each_entry(dev_data, &domain->dev_list, list) + list_for_each_entry(dev_data, &domain->dev_list, list) { set_dte_entry(dev_data->devid, domain, dev_data->ats.enabled); + + if (dev_data->devid == dev_data->alias) + continue; + + /* There is an alias, update device table entry for it */ + set_dte_entry(dev_data->alias, domain, dev_data->ats.enabled); + } } static void update_domain(struct protection_domain *domain) @@ -3103,9 +3112,7 @@ static struct iommu_domain *amd_iommu_domain_alloc(unsigned type) static void amd_iommu_domain_free(struct iommu_domain *dom) { struct protection_domain *domain; - - if (!dom) - return; + struct dma_ops_domain *dma_dom; domain = to_pdomain(dom); @@ -3114,13 +3121,24 @@ static void amd_iommu_domain_free(struct iommu_domain *dom) BUG_ON(domain->dev_cnt != 0); - if (domain->mode != PAGE_MODE_NONE) - free_pagetable(domain); + if (!dom) + return; + + switch (dom->type) { + case IOMMU_DOMAIN_DMA: + dma_dom = domain->priv; + dma_ops_domain_free(dma_dom); + break; + default: + if (domain->mode != PAGE_MODE_NONE) + free_pagetable(domain); - if (domain->flags & PD_IOMMUV2_MASK) - free_gcr3_table(domain); + if (domain->flags & PD_IOMMUV2_MASK) + free_gcr3_table(domain); - protection_domain_free(domain); + protection_domain_free(domain); + break; + } } static void amd_iommu_detach_device(struct iommu_domain *dom, diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 5ecc86cb7..e27e3b7df 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -709,6 +709,7 @@ static struct platform_driver exynos_sysmmu_driver __refdata = { .name = "exynos-sysmmu", .of_match_table = sysmmu_of_match, .pm = &sysmmu_pm_ops, + .suppress_bind_attrs = true, } }; diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 323dac990..d416242c4 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2076,7 +2076,7 @@ out_unlock: spin_unlock(&iommu->lock); spin_unlock_irqrestore(&device_domain_lock, flags); - return 0; + return ret; } struct domain_context_mapping_data { diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index a1ed1b73f..f5c90e136 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -576,7 +576,7 @@ static phys_addr_t arm_lpae_iova_to_phys(struct io_pgtable_ops *ops, return 0; found_translation: - iova &= (ARM_LPAE_GRANULE(data) - 1); + iova &= (ARM_LPAE_BLOCK_SIZE(lvl, data) - 1); return ((phys_addr_t)iopte_to_pfn(pte,data) << data->pg_shift) | iova; } diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c index b7341de87..4bb49cd60 100644 --- a/drivers/md/dm-flakey.c +++ b/drivers/md/dm-flakey.c @@ -289,10 +289,16 @@ static int flakey_map(struct dm_target *ti, struct bio *bio) pb->bio_submitted = true; /* - * Map reads as normal. + * Map reads as normal only if corrupt_bio_byte set. */ - if (bio_data_dir(bio) == READ) - goto map_bio; + if (bio_data_dir(bio) == READ) { + /* If flags were specified, only corrupt those that match. */ + if (fc->corrupt_bio_byte && (fc->corrupt_bio_rw == READ) && + all_corrupt_bio_flags_match(bio, fc)) + goto map_bio; + else + return -EIO; + } /* * Drop writes? @@ -330,12 +336,13 @@ static int flakey_end_io(struct dm_target *ti, struct bio *bio, int error) /* * Corrupt successful READs while in down state. - * If flags were specified, only corrupt those that match. */ - if (fc->corrupt_bio_byte && !error && pb->bio_submitted && - (bio_data_dir(bio) == READ) && (fc->corrupt_bio_rw == READ) && - all_corrupt_bio_flags_match(bio, fc)) - corrupt_bio_data(bio, fc); + if (!error && pb->bio_submitted && (bio_data_dir(bio) == READ)) { + if (fc->corrupt_bio_byte) + corrupt_bio_data(bio, fc); + else + return -EIO; + } return error; } diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c index 459a9f890..0f0eb8a3d 100644 --- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -453,9 +453,7 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io, */ offset = block << v->data_dev_block_bits; - - res = offset; - div64_u64(res, v->fec->rounds << v->data_dev_block_bits); + res = div64_u64(offset, v->fec->rounds << v->data_dev_block_bits); /* * The base RS block we can feed to the interleaver to find out all diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 1b2f96205..fd40bcb39 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2175,7 +2175,7 @@ static void dm_request_fn(struct request_queue *q) md_in_flight(md) && rq->bio && rq->bio->bi_vcnt == 1 && md->last_rq_pos == pos && md->last_rq_rw == rq_data_dir(rq)) || (ti->type->busy && ti->type->busy(ti))) { - blk_delay_queue(q, HZ / 100); + blk_delay_queue(q, 10); return; } @@ -3128,7 +3128,8 @@ static void unlock_fs(struct mapped_device *md) * Caller must hold md->suspend_lock */ static int __dm_suspend(struct mapped_device *md, struct dm_table *map, - unsigned suspend_flags, int interruptible) + unsigned suspend_flags, int interruptible, + int dmf_suspended_flag) { bool do_lockfs = suspend_flags & DM_SUSPEND_LOCKFS_FLAG; bool noflush = suspend_flags & DM_SUSPEND_NOFLUSH_FLAG; @@ -3195,6 +3196,8 @@ static int __dm_suspend(struct mapped_device *md, struct dm_table *map, * to finish. */ r = dm_wait_for_completion(md, interruptible); + if (!r) + set_bit(dmf_suspended_flag, &md->flags); if (noflush) clear_bit(DMF_NOFLUSH_SUSPENDING, &md->flags); @@ -3256,12 +3259,10 @@ retry: map = rcu_dereference_protected(md->map, lockdep_is_held(&md->suspend_lock)); - r = __dm_suspend(md, map, suspend_flags, TASK_INTERRUPTIBLE); + r = __dm_suspend(md, map, suspend_flags, TASK_INTERRUPTIBLE, DMF_SUSPENDED); if (r) goto out_unlock; - set_bit(DMF_SUSPENDED, &md->flags); - dm_table_postsuspend_targets(map); out_unlock: @@ -3355,9 +3356,8 @@ static void __dm_internal_suspend(struct mapped_device *md, unsigned suspend_fla * would require changing .presuspend to return an error -- avoid this * until there is a need for more elaborate variants of internal suspend. */ - (void) __dm_suspend(md, map, suspend_flags, TASK_UNINTERRUPTIBLE); - - set_bit(DMF_SUSPENDED_INTERNALLY, &md->flags); + (void) __dm_suspend(md, map, suspend_flags, TASK_UNINTERRUPTIBLE, + DMF_SUSPENDED_INTERNALLY); dm_table_postsuspend_targets(map); } diff --git a/drivers/media/dvb-core/dvb_ringbuffer.c b/drivers/media/dvb-core/dvb_ringbuffer.c index 1100e98a7..7df7fb373 100644 --- a/drivers/media/dvb-core/dvb_ringbuffer.c +++ b/drivers/media/dvb-core/dvb_ringbuffer.c @@ -55,7 +55,13 @@ void dvb_ringbuffer_init(struct dvb_ringbuffer *rbuf, void *data, size_t len) int dvb_ringbuffer_empty(struct dvb_ringbuffer *rbuf) { - return (rbuf->pread==rbuf->pwrite); + /* smp_load_acquire() to load write pointer on reader side + * this pairs with smp_store_release() in dvb_ringbuffer_write(), + * dvb_ringbuffer_write_user(), or dvb_ringbuffer_reset() + * + * for memory barriers also see Documentation/circular-buffers.txt + */ + return (rbuf->pread == smp_load_acquire(&rbuf->pwrite)); } @@ -64,7 +70,12 @@ ssize_t dvb_ringbuffer_free(struct dvb_ringbuffer *rbuf) { ssize_t free; - free = rbuf->pread - rbuf->pwrite; + /* ACCESS_ONCE() to load read pointer on writer side + * this pairs with smp_store_release() in dvb_ringbuffer_read(), + * dvb_ringbuffer_read_user(), dvb_ringbuffer_flush(), + * or dvb_ringbuffer_reset() + */ + free = ACCESS_ONCE(rbuf->pread) - rbuf->pwrite; if (free <= 0) free += rbuf->size; return free-1; @@ -76,7 +87,11 @@ ssize_t dvb_ringbuffer_avail(struct dvb_ringbuffer *rbuf) { ssize_t avail; - avail = rbuf->pwrite - rbuf->pread; + /* smp_load_acquire() to load write pointer on reader side + * this pairs with smp_store_release() in dvb_ringbuffer_write(), + * dvb_ringbuffer_write_user(), or dvb_ringbuffer_reset() + */ + avail = smp_load_acquire(&rbuf->pwrite) - rbuf->pread; if (avail < 0) avail += rbuf->size; return avail; @@ -86,14 +101,25 @@ ssize_t dvb_ringbuffer_avail(struct dvb_ringbuffer *rbuf) void dvb_ringbuffer_flush(struct dvb_ringbuffer *rbuf) { - rbuf->pread = rbuf->pwrite; + /* dvb_ringbuffer_flush() counts as read operation + * smp_load_acquire() to load write pointer + * smp_store_release() to update read pointer, this ensures that the + * correct pointer is visible for subsequent dvb_ringbuffer_free() + * calls on other cpu cores + */ + smp_store_release(&rbuf->pread, smp_load_acquire(&rbuf->pwrite)); rbuf->error = 0; } EXPORT_SYMBOL(dvb_ringbuffer_flush); void dvb_ringbuffer_reset(struct dvb_ringbuffer *rbuf) { - rbuf->pread = rbuf->pwrite = 0; + /* dvb_ringbuffer_reset() counts as read and write operation + * smp_store_release() to update read pointer + */ + smp_store_release(&rbuf->pread, 0); + /* smp_store_release() to update write pointer */ + smp_store_release(&rbuf->pwrite, 0); rbuf->error = 0; } @@ -119,12 +145,17 @@ ssize_t dvb_ringbuffer_read_user(struct dvb_ringbuffer *rbuf, u8 __user *buf, si return -EFAULT; buf += split; todo -= split; - rbuf->pread = 0; + /* smp_store_release() for read pointer update to ensure + * that buf is not overwritten until read is complete, + * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free() + */ + smp_store_release(&rbuf->pread, 0); } if (copy_to_user(buf, rbuf->data+rbuf->pread, todo)) return -EFAULT; - rbuf->pread = (rbuf->pread + todo) % rbuf->size; + /* smp_store_release() to update read pointer, see above */ + smp_store_release(&rbuf->pread, (rbuf->pread + todo) % rbuf->size); return len; } @@ -139,11 +170,16 @@ void dvb_ringbuffer_read(struct dvb_ringbuffer *rbuf, u8 *buf, size_t len) memcpy(buf, rbuf->data+rbuf->pread, split); buf += split; todo -= split; - rbuf->pread = 0; + /* smp_store_release() for read pointer update to ensure + * that buf is not overwritten until read is complete, + * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free() + */ + smp_store_release(&rbuf->pread, 0); } memcpy(buf, rbuf->data+rbuf->pread, todo); - rbuf->pread = (rbuf->pread + todo) % rbuf->size; + /* smp_store_release() to update read pointer, see above */ + smp_store_release(&rbuf->pread, (rbuf->pread + todo) % rbuf->size); } @@ -158,10 +194,16 @@ ssize_t dvb_ringbuffer_write(struct dvb_ringbuffer *rbuf, const u8 *buf, size_t memcpy(rbuf->data+rbuf->pwrite, buf, split); buf += split; todo -= split; - rbuf->pwrite = 0; + /* smp_store_release() for write pointer update to ensure that + * written data is visible on other cpu cores before the pointer + * update, this pairs with smp_load_acquire() in + * dvb_ringbuffer_empty() or dvb_ringbuffer_avail() + */ + smp_store_release(&rbuf->pwrite, 0); } memcpy(rbuf->data+rbuf->pwrite, buf, todo); - rbuf->pwrite = (rbuf->pwrite + todo) % rbuf->size; + /* smp_store_release() for write pointer update, see above */ + smp_store_release(&rbuf->pwrite, (rbuf->pwrite + todo) % rbuf->size); return len; } @@ -181,12 +223,18 @@ ssize_t dvb_ringbuffer_write_user(struct dvb_ringbuffer *rbuf, return len - todo; buf += split; todo -= split; - rbuf->pwrite = 0; + /* smp_store_release() for write pointer update to ensure that + * written data is visible on other cpu cores before the pointer + * update, this pairs with smp_load_acquire() in + * dvb_ringbuffer_empty() or dvb_ringbuffer_avail() + */ + smp_store_release(&rbuf->pwrite, 0); } status = copy_from_user(rbuf->data+rbuf->pwrite, buf, todo); if (status) return len - todo; - rbuf->pwrite = (rbuf->pwrite + todo) % rbuf->size; + /* smp_store_release() for write pointer update, see above */ + smp_store_release(&rbuf->pwrite, (rbuf->pwrite + todo) % rbuf->size); return len; } diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index 9c5c0f7c1..eb72fbf2e 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -1050,6 +1050,11 @@ static int match_child(struct device *dev, void *data) return !strcmp(dev_name(dev), (char *)data); } +static void s5p_mfc_memdev_release(struct device *dev) +{ + dma_release_declared_memory(dev); +} + static void *mfc_get_drv_data(struct platform_device *pdev); static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev) @@ -1062,6 +1067,9 @@ static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev) mfc_err("Not enough memory\n"); return -ENOMEM; } + + dev_set_name(dev->mem_dev_l, "%s", "s5p-mfc-l"); + dev->mem_dev_l->release = s5p_mfc_memdev_release; device_initialize(dev->mem_dev_l); of_property_read_u32_array(dev->plat_dev->dev.of_node, "samsung,mfc-l", mem_info, 2); @@ -1079,6 +1087,9 @@ static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev) mfc_err("Not enough memory\n"); return -ENOMEM; } + + dev_set_name(dev->mem_dev_r, "%s", "s5p-mfc-r"); + dev->mem_dev_r->release = s5p_mfc_memdev_release; device_initialize(dev->mem_dev_r); of_property_read_u32_array(dev->plat_dev->dev.of_node, "samsung,mfc-r", mem_info, 2); diff --git a/drivers/media/rc/ir-rc5-decoder.c b/drivers/media/rc/ir-rc5-decoder.c index 6ffe776ab..a0fd4e6b2 100644 --- a/drivers/media/rc/ir-rc5-decoder.c +++ b/drivers/media/rc/ir-rc5-decoder.c @@ -29,7 +29,7 @@ #define RC5_BIT_START (1 * RC5_UNIT) #define RC5_BIT_END (1 * RC5_UNIT) #define RC5X_SPACE (4 * RC5_UNIT) -#define RC5_TRAILER (10 * RC5_UNIT) /* In reality, approx 100 */ +#define RC5_TRAILER (6 * RC5_UNIT) /* In reality, approx 100 */ enum rc5_state { STATE_INACTIVE, diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c index 99b303b70..e8ceb0e2f 100644 --- a/drivers/media/rc/nuvoton-cir.c +++ b/drivers/media/rc/nuvoton-cir.c @@ -401,6 +401,7 @@ static int nvt_hw_detect(struct nvt_dev *nvt) /* Check if we're wired for the alternate EFER setup */ nvt->chip_major = nvt_cr_read(nvt, CR_CHIP_ID_HI); if (nvt->chip_major == 0xff) { + nvt_efm_disable(nvt); nvt->cr_efir = CR_EFIR2; nvt->cr_efdr = CR_EFDR2; nvt_efm_enable(nvt); diff --git a/drivers/media/usb/usbtv/usbtv-audio.c b/drivers/media/usb/usbtv/usbtv-audio.c index 78c12d22d..5dab02432 100644 --- a/drivers/media/usb/usbtv/usbtv-audio.c +++ b/drivers/media/usb/usbtv/usbtv-audio.c @@ -278,6 +278,9 @@ static void snd_usbtv_trigger(struct work_struct *work) { struct usbtv *chip = container_of(work, struct usbtv, snd_trigger); + if (!chip->snd) + return; + if (atomic_read(&chip->snd_stream)) usbtv_audio_start(chip); else @@ -378,6 +381,8 @@ err: void usbtv_audio_free(struct usbtv *usbtv) { + cancel_work_sync(&usbtv->snd_trigger); + if (usbtv->snd && usbtv->udev) { snd_card_free(usbtv->snd); usbtv->snd = NULL; diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c index 9fbcb67a9..633fc1ab1 100644 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@ -1648,7 +1648,7 @@ static int __vb2_get_done_vb(struct vb2_queue *q, struct vb2_buffer **vb, void *pb, int nonblocking) { unsigned long flags; - int ret; + int ret = 0; /* * Wait for at least one buffer to become available on the done_list. @@ -1664,10 +1664,12 @@ static int __vb2_get_done_vb(struct vb2_queue *q, struct vb2_buffer **vb, spin_lock_irqsave(&q->done_lock, flags); *vb = list_first_entry(&q->done_list, struct vb2_buffer, done_entry); /* - * Only remove the buffer from done_list if v4l2_buffer can handle all - * the planes. + * Only remove the buffer from done_list if all planes can be + * handled. Some cases such as V4L2 file I/O and DVB have pb + * == NULL; skip the check then as there's nothing to verify. */ - ret = call_bufop(q, verify_planes_array, *vb, pb); + if (pb) + ret = call_bufop(q, verify_planes_array, *vb, pb); if (!ret) list_del(&(*vb)->done_entry); spin_unlock_irqrestore(&q->done_lock, flags); diff --git a/drivers/media/v4l2-core/videobuf2-v4l2.c b/drivers/media/v4l2-core/videobuf2-v4l2.c index 0b1b8c7b6..7f366f1b0 100644 --- a/drivers/media/v4l2-core/videobuf2-v4l2.c +++ b/drivers/media/v4l2-core/videobuf2-v4l2.c @@ -74,6 +74,11 @@ static int __verify_planes_array(struct vb2_buffer *vb, const struct v4l2_buffer return 0; } +static int __verify_planes_array_core(struct vb2_buffer *vb, const void *pb) +{ + return __verify_planes_array(vb, pb); +} + /** * __verify_length() - Verify that the bytesused value for each plane fits in * the plane length and that the data offset doesn't exceed the bytesused value. @@ -437,6 +442,7 @@ static int __fill_vb2_buffer(struct vb2_buffer *vb, } static const struct vb2_buf_ops v4l2_buf_ops = { + .verify_planes_array = __verify_planes_array_core, .fill_user_buffer = __fill_v4l2_buffer, .fill_vb2_buffer = __fill_vb2_buffer, .copy_timestamp = __copy_timestamp, diff --git a/drivers/mfd/qcom_rpm.c b/drivers/mfd/qcom_rpm.c index 1be47ad64..880d4699b 100644 --- a/drivers/mfd/qcom_rpm.c +++ b/drivers/mfd/qcom_rpm.c @@ -34,7 +34,13 @@ struct qcom_rpm_resource { struct qcom_rpm_data { u32 version; const struct qcom_rpm_resource *resource_table; - unsigned n_resources; + unsigned int n_resources; + unsigned int req_ctx_off; + unsigned int req_sel_off; + unsigned int ack_ctx_off; + unsigned int ack_sel_off; + unsigned int req_sel_size; + unsigned int ack_sel_size; }; struct qcom_rpm { @@ -61,11 +67,7 @@ struct qcom_rpm { #define RPM_REQUEST_TIMEOUT (5 * HZ) -#define RPM_REQUEST_CONTEXT 3 -#define RPM_REQ_SELECT 11 -#define RPM_ACK_CONTEXT 15 -#define RPM_ACK_SELECTOR 23 -#define RPM_SELECT_SIZE 7 +#define RPM_MAX_SEL_SIZE 7 #define RPM_NOTIFICATION BIT(30) #define RPM_REJECTED BIT(31) @@ -157,6 +159,12 @@ static const struct qcom_rpm_data apq8064_template = { .version = 3, .resource_table = apq8064_rpm_resource_table, .n_resources = ARRAY_SIZE(apq8064_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 15, + .ack_sel_off = 23, + .req_sel_size = 4, + .ack_sel_size = 7, }; static const struct qcom_rpm_resource msm8660_rpm_resource_table[] = { @@ -240,6 +248,12 @@ static const struct qcom_rpm_data msm8660_template = { .version = 2, .resource_table = msm8660_rpm_resource_table, .n_resources = ARRAY_SIZE(msm8660_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 19, + .ack_sel_off = 27, + .req_sel_size = 7, + .ack_sel_size = 7, }; static const struct qcom_rpm_resource msm8960_rpm_resource_table[] = { @@ -322,6 +336,12 @@ static const struct qcom_rpm_data msm8960_template = { .version = 3, .resource_table = msm8960_rpm_resource_table, .n_resources = ARRAY_SIZE(msm8960_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 15, + .ack_sel_off = 23, + .req_sel_size = 4, + .ack_sel_size = 7, }; static const struct qcom_rpm_resource ipq806x_rpm_resource_table[] = { @@ -362,6 +382,12 @@ static const struct qcom_rpm_data ipq806x_template = { .version = 3, .resource_table = ipq806x_rpm_resource_table, .n_resources = ARRAY_SIZE(ipq806x_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 15, + .ack_sel_off = 23, + .req_sel_size = 4, + .ack_sel_size = 7, }; static const struct of_device_id qcom_rpm_of_match[] = { @@ -380,7 +406,7 @@ int qcom_rpm_write(struct qcom_rpm *rpm, { const struct qcom_rpm_resource *res; const struct qcom_rpm_data *data = rpm->data; - u32 sel_mask[RPM_SELECT_SIZE] = { 0 }; + u32 sel_mask[RPM_MAX_SEL_SIZE] = { 0 }; int left; int ret = 0; int i; @@ -398,12 +424,12 @@ int qcom_rpm_write(struct qcom_rpm *rpm, writel_relaxed(buf[i], RPM_REQ_REG(rpm, res->target_id + i)); bitmap_set((unsigned long *)sel_mask, res->select_id, 1); - for (i = 0; i < ARRAY_SIZE(sel_mask); i++) { + for (i = 0; i < rpm->data->req_sel_size; i++) { writel_relaxed(sel_mask[i], - RPM_CTRL_REG(rpm, RPM_REQ_SELECT + i)); + RPM_CTRL_REG(rpm, rpm->data->req_sel_off + i)); } - writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, RPM_REQUEST_CONTEXT)); + writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, rpm->data->req_ctx_off)); reinit_completion(&rpm->ack); regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit)); @@ -426,10 +452,11 @@ static irqreturn_t qcom_rpm_ack_interrupt(int irq, void *dev) u32 ack; int i; - ack = readl_relaxed(RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT)); - for (i = 0; i < RPM_SELECT_SIZE; i++) - writel_relaxed(0, RPM_CTRL_REG(rpm, RPM_ACK_SELECTOR + i)); - writel(0, RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT)); + ack = readl_relaxed(RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off)); + for (i = 0; i < rpm->data->ack_sel_size; i++) + writel_relaxed(0, + RPM_CTRL_REG(rpm, rpm->data->ack_sel_off + i)); + writel(0, RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off)); if (ack & RPM_NOTIFICATION) { dev_warn(rpm->dev, "ignoring notification!\n"); diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 0b0dc29d2..77533f7f2 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2610,7 +2610,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, int cached = writelen > bytes && page != blockmask; uint8_t *wbuf = buf; int use_bufpoi; - int part_pagewr = (column || writelen < (mtd->writesize - 1)); + int part_pagewr = (column || writelen < mtd->writesize); if (part_pagewr) use_bufpoi = 1; diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index ef3618299..0680516bb 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -874,7 +874,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, for (i = 0; i < UBI_MAX_DEVICES; i++) { ubi = ubi_devices[i]; if (ubi && mtd->index == ubi->mtd->index) { - ubi_err(ubi, "mtd%d is already attached to ubi%d", + pr_err("ubi: mtd%d is already attached to ubi%d", mtd->index, i); return -EEXIST; } @@ -889,7 +889,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, * no sense to attach emulated MTD devices, so we prohibit this. */ if (mtd->type == MTD_UBIVOLUME) { - ubi_err(ubi, "refuse attaching mtd%d - it is already emulated on top of UBI", + pr_err("ubi: refuse attaching mtd%d - it is already emulated on top of UBI", mtd->index); return -EINVAL; } @@ -900,7 +900,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, if (!ubi_devices[ubi_num]) break; if (ubi_num == UBI_MAX_DEVICES) { - ubi_err(ubi, "only %d UBI devices may be created", + pr_err("ubi: only %d UBI devices may be created", UBI_MAX_DEVICES); return -ENFILE; } @@ -910,7 +910,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, /* Make sure ubi_num is not busy */ if (ubi_devices[ubi_num]) { - ubi_err(ubi, "already exists"); + pr_err("ubi: ubi%i already exists", ubi_num); return -EEXIST; } } @@ -992,6 +992,9 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, goto out_detach; } + /* Make device "available" before it becomes accessible via sysfs */ + ubi_devices[ubi_num] = ubi; + err = uif_init(ubi, &ref); if (err) goto out_detach; @@ -1036,7 +1039,6 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, wake_up_process(ubi->bgt_thread); spin_unlock(&ubi->wl_lock); - ubi_devices[ubi_num] = ubi; ubi_notify_all(ubi, UBI_VOLUME_ADDED, NULL); return ubi_num; @@ -1047,6 +1049,7 @@ out_uif: ubi_assert(ref); uif_close(ubi); out_detach: + ubi_devices[ubi_num] = NULL; ubi_wl_close(ubi); ubi_free_internal_volumes(ubi); vfree(ubi->vtbl); diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index 10059dfdc..0138f5264 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -488,13 +488,6 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) spin_unlock(&ubi->volumes_lock); } - /* Change volume table record */ - vtbl_rec = ubi->vtbl[vol_id]; - vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs); - err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); - if (err) - goto out_acc; - if (pebs < 0) { for (i = 0; i < -pebs; i++) { err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i); @@ -512,6 +505,24 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) spin_unlock(&ubi->volumes_lock); } + /* + * When we shrink a volume we have to flush all pending (erase) work. + * Otherwise it can happen that upon next attach UBI finds a LEB with + * lnum > highest_lnum and refuses to attach. + */ + if (pebs < 0) { + err = ubi_wl_flush(ubi, vol_id, UBI_ALL); + if (err) + goto out_acc; + } + + /* Change volume table record */ + vtbl_rec = ubi->vtbl[vol_id]; + vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs); + err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); + if (err) + goto out_acc; + vol->reserved_pebs = reserved_pebs; if (vol->vol_type == UBI_DYNAMIC_VOLUME) { vol->used_ebs = reserved_pebs; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c index 5b30922b6..2ce319903 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c @@ -2469,10 +2469,22 @@ void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb) void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked) { struct brcmf_fws_info *fws = drvr->fws; + struct brcmf_if *ifp; + int i; - fws->bus_flow_blocked = flow_blocked; - if (!flow_blocked) - brcmf_fws_schedule_deq(fws); - else - fws->stats.bus_flow_block++; + if (fws->avoid_queueing) { + for (i = 0; i < BRCMF_MAX_IFS; i++) { + ifp = drvr->iflist[i]; + if (!ifp || !ifp->ndev) + continue; + brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_FLOW, + flow_blocked); + } + } else { + fws->bus_flow_blocked = flow_blocked; + if (!flow_blocked) + brcmf_fws_schedule_deq(fws); + else + fws->stats.bus_flow_block++; + } } diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c index a588b05e3..6f020e4ec 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c @@ -433,6 +433,7 @@ static const struct pci_device_id iwl_hw_card_ids[] = { /* 8000 Series */ {IWL_PCI_DEVICE(0x24F3, 0x0010, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x1010, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0x10B0, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0130, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x1130, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x0132, iwl8260_2ac_cfg)}, @@ -454,6 +455,8 @@ static const struct pci_device_id iwl_hw_card_ids[] = { {IWL_PCI_DEVICE(0x24F3, 0xD010, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0xC050, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0xD050, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0xD0B0, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F3, 0xB0B0, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x8010, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x8110, iwl8260_2ac_cfg)}, {IWL_PCI_DEVICE(0x24F3, 0x9010, iwl8260_2ac_cfg)}, @@ -481,6 +484,8 @@ static const struct pci_device_id iwl_hw_card_ids[] = { {IWL_PCI_DEVICE(0x24FD, 0x0010, iwl8265_2ac_cfg)}, {IWL_PCI_DEVICE(0x24FD, 0x0110, iwl8265_2ac_cfg)}, {IWL_PCI_DEVICE(0x24FD, 0x1110, iwl8265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24FD, 0x1130, iwl8265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24FD, 0x0130, iwl8265_2ac_cfg)}, {IWL_PCI_DEVICE(0x24FD, 0x1010, iwl8265_2ac_cfg)}, {IWL_PCI_DEVICE(0x24FD, 0x0050, iwl8265_2ac_cfg)}, {IWL_PCI_DEVICE(0x24FD, 0x0150, iwl8265_2ac_cfg)}, @@ -491,6 +496,10 @@ static const struct pci_device_id iwl_hw_card_ids[] = { {IWL_PCI_DEVICE(0x24FD, 0x0810, iwl8265_2ac_cfg)}, {IWL_PCI_DEVICE(0x24FD, 0x9110, iwl8265_2ac_cfg)}, {IWL_PCI_DEVICE(0x24FD, 0x8130, iwl8265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24FD, 0x0910, iwl8265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24FD, 0x0930, iwl8265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24FD, 0x0950, iwl8265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24FD, 0x0850, iwl8265_2ac_cfg)}, /* 9000 Series */ {IWL_PCI_DEVICE(0x2526, 0x0000, iwl9260_2ac_cfg)}, diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h index de6974f9c..2d8cce290 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h +++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h @@ -496,7 +496,7 @@ void iwl_pcie_dump_csr(struct iwl_trans *trans); /***************************************************** * Helpers ******************************************************/ -static inline void iwl_disable_interrupts(struct iwl_trans *trans) +static inline void _iwl_disable_interrupts(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); @@ -519,7 +519,16 @@ static inline void iwl_disable_interrupts(struct iwl_trans *trans) IWL_DEBUG_ISR(trans, "Disabled interrupts\n"); } -static inline void iwl_enable_interrupts(struct iwl_trans *trans) +static inline void iwl_disable_interrupts(struct iwl_trans *trans) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + + spin_lock(&trans_pcie->irq_lock); + _iwl_disable_interrupts(trans); + spin_unlock(&trans_pcie->irq_lock); +} + +static inline void _iwl_enable_interrupts(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); @@ -542,6 +551,14 @@ static inline void iwl_enable_interrupts(struct iwl_trans *trans) } } +static inline void iwl_enable_interrupts(struct iwl_trans *trans) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + + spin_lock(&trans_pcie->irq_lock); + _iwl_enable_interrupts(trans); + spin_unlock(&trans_pcie->irq_lock); +} static inline void iwl_enable_hw_int_msk_msix(struct iwl_trans *trans, u32 msk) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index 0a4a3c502..aaaf2ad6e 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -1507,7 +1507,7 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) * have anything to service */ if (test_bit(STATUS_INT_ENABLED, &trans->status)) - iwl_enable_interrupts(trans); + _iwl_enable_interrupts(trans); spin_unlock(&trans_pcie->irq_lock); lock_map_release(&trans->sync_cmd_lockdep_map); return IRQ_NONE; @@ -1699,15 +1699,17 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) inta & ~trans_pcie->inta_mask); } + spin_lock(&trans_pcie->irq_lock); + /* only Re-enable all interrupt if disabled by irq */ + if (test_bit(STATUS_INT_ENABLED, &trans->status)) + _iwl_enable_interrupts(trans); /* we are loading the firmware, enable FH_TX interrupt only */ - if (handled & CSR_INT_BIT_FH_TX) + else if (handled & CSR_INT_BIT_FH_TX) iwl_enable_fw_load_int(trans); - /* only Re-enable all interrupt if disabled by irq */ - else if (test_bit(STATUS_INT_ENABLED, &trans->status)) - iwl_enable_interrupts(trans); /* Re-enable RF_KILL if it occurred */ else if (handled & CSR_INT_BIT_RF_KILL) iwl_enable_rfkill_int(trans); + spin_unlock(&trans_pcie->irq_lock); out: lock_map_release(&trans->sync_cmd_lockdep_map); @@ -1771,7 +1773,7 @@ void iwl_pcie_reset_ict(struct iwl_trans *trans) return; spin_lock(&trans_pcie->irq_lock); - iwl_disable_interrupts(trans); + _iwl_disable_interrupts(trans); memset(trans_pcie->ict_tbl, 0, ICT_SIZE); @@ -1787,7 +1789,7 @@ void iwl_pcie_reset_ict(struct iwl_trans *trans) trans_pcie->use_ict = true; trans_pcie->ict_index = 0; iwl_write32(trans, CSR_INT, trans_pcie->inta_mask); - iwl_enable_interrupts(trans); + _iwl_enable_interrupts(trans); spin_unlock(&trans_pcie->irq_lock); } diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index f603d7830..d9f139462 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -801,6 +801,8 @@ static int iwl_pcie_load_cpu_sections_8000(struct iwl_trans *trans, *first_ucode_section = last_read_idx; + iwl_enable_interrupts(trans); + if (cpu == 1) iwl_write_direct32(trans, FH_UCODE_LOAD_STATUS, 0xFFFF); else @@ -980,6 +982,8 @@ static int iwl_pcie_load_given_ucode(struct iwl_trans *trans, iwl_pcie_apply_destination(trans); } + iwl_enable_interrupts(trans); + /* release CPU reset */ iwl_write32(trans, CSR_RESET, 0); @@ -1033,9 +1037,7 @@ static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power) was_hw_rfkill = iwl_is_rfkill_set(trans); /* tell the device to stop sending interrupts */ - spin_lock(&trans_pcie->irq_lock); iwl_disable_interrupts(trans); - spin_unlock(&trans_pcie->irq_lock); /* device going down, Stop using ICT table */ iwl_pcie_disable_ict(trans); @@ -1079,9 +1081,7 @@ static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power) * the time, unless the interrupt is ACKed even if the interrupt * should be masked. Re-ACK all the interrupts here. */ - spin_lock(&trans_pcie->irq_lock); iwl_disable_interrupts(trans); - spin_unlock(&trans_pcie->irq_lock); /* clear all status bits */ clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); @@ -1215,7 +1215,6 @@ static int iwl_trans_pcie_start_fw(struct iwl_trans *trans, ret = iwl_pcie_load_given_ucode_8000(trans, fw); else ret = iwl_pcie_load_given_ucode(trans, fw); - iwl_enable_interrupts(trans); /* re-check RF-Kill state since we may have missed the interrupt */ hw_rfkill = iwl_is_rfkill_set(trans); @@ -1567,15 +1566,11 @@ static void iwl_trans_pcie_op_mode_leave(struct iwl_trans *trans) mutex_lock(&trans_pcie->mutex); /* disable interrupts - don't enable HW RF kill interrupt */ - spin_lock(&trans_pcie->irq_lock); iwl_disable_interrupts(trans); - spin_unlock(&trans_pcie->irq_lock); iwl_pcie_apm_stop(trans, true); - spin_lock(&trans_pcie->irq_lock); iwl_disable_interrupts(trans); - spin_unlock(&trans_pcie->irq_lock); iwl_pcie_disable_ict(trans); diff --git a/drivers/of/base.c b/drivers/of/base.c index ebf84e3b5..8bb3d1adf 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -112,6 +112,7 @@ static ssize_t of_node_property_read(struct file *filp, struct kobject *kobj, return memory_read_from_buffer(buf, count, &offset, pp->value, pp->length); } +/* always return newly allocated name, caller must free after use */ static const char *safe_name(struct kobject *kobj, const char *orig_name) { const char *name = orig_name; @@ -126,9 +127,12 @@ static const char *safe_name(struct kobject *kobj, const char *orig_name) name = kasprintf(GFP_KERNEL, "%s#%i", orig_name, ++i); } - if (name != orig_name) + if (name == orig_name) { + name = kstrdup(orig_name, GFP_KERNEL); + } else { pr_warn("device-tree: Duplicate name in %s, renamed to \"%s\"\n", kobject_name(kobj), name); + } return name; } @@ -159,6 +163,7 @@ int __of_add_property_sysfs(struct device_node *np, struct property *pp) int __of_attach_node_sysfs(struct device_node *np) { const char *name; + struct kobject *parent; struct property *pp; int rc; @@ -171,15 +176,16 @@ int __of_attach_node_sysfs(struct device_node *np) np->kobj.kset = of_kset; if (!np->parent) { /* Nodes without parents are new top level trees */ - rc = kobject_add(&np->kobj, NULL, "%s", - safe_name(&of_kset->kobj, "base")); + name = safe_name(&of_kset->kobj, "base"); + parent = NULL; } else { name = safe_name(&np->parent->kobj, kbasename(np->full_name)); - if (!name || !name[0]) - return -EINVAL; - - rc = kobject_add(&np->kobj, &np->parent->kobj, "%s", name); + parent = &np->parent->kobj; } + if (!name) + return -ENOMEM; + rc = kobject_add(&np->kobj, parent, "%s", name); + kfree(name); if (rc) return rc; @@ -1815,6 +1821,12 @@ int __of_remove_property(struct device_node *np, struct property *prop) return 0; } +void __of_sysfs_remove_bin_file(struct device_node *np, struct property *prop) +{ + sysfs_remove_bin_file(&np->kobj, &prop->attr); + kfree(prop->attr.attr.name); +} + void __of_remove_property_sysfs(struct device_node *np, struct property *prop) { if (!IS_ENABLED(CONFIG_SYSFS)) @@ -1822,7 +1834,7 @@ void __of_remove_property_sysfs(struct device_node *np, struct property *prop) /* at early boot, bail here and defer setup to of_init() */ if (of_kset && of_node_is_attached(np)) - sysfs_remove_bin_file(&np->kobj, &prop->attr); + __of_sysfs_remove_bin_file(np, prop); } /** @@ -1895,7 +1907,7 @@ void __of_update_property_sysfs(struct device_node *np, struct property *newprop return; if (oldprop) - sysfs_remove_bin_file(&np->kobj, &oldprop->attr); + __of_sysfs_remove_bin_file(np, oldprop); __of_add_property_sysfs(np, newprop); } diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c index 3033fa325..a2015599e 100644 --- a/drivers/of/dynamic.c +++ b/drivers/of/dynamic.c @@ -55,7 +55,7 @@ void __of_detach_node_sysfs(struct device_node *np) /* only remove properties if on sysfs */ if (of_node_is_attached(np)) { for_each_property_of_node(np, pp) - sysfs_remove_bin_file(&np->kobj, &pp->attr); + __of_sysfs_remove_bin_file(np, pp); kobject_del(&np->kobj); } diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h index 829469fae..18bbb4517 100644 --- a/drivers/of/of_private.h +++ b/drivers/of/of_private.h @@ -83,6 +83,9 @@ extern int __of_attach_node_sysfs(struct device_node *np); extern void __of_detach_node(struct device_node *np); extern void __of_detach_node_sysfs(struct device_node *np); +extern void __of_sysfs_remove_bin_file(struct device_node *np, + struct property *prop); + /* iterators for transactions, used for overlays */ /* forward iterator */ #define for_each_transaction_entry(_oft, _te) \ diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index ee72ebe18..7902fbf47 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3189,13 +3189,15 @@ static void quirk_no_bus_reset(struct pci_dev *dev) } /* - * Atheros AR93xx chips do not behave after a bus reset. The device will - * throw a Link Down error on AER-capable systems and regardless of AER, - * config space of the device is never accessible again and typically - * causes the system to hang or reset when access is attempted. + * Some Atheros AR9xxx and QCA988x chips do not behave after a bus reset. + * The device will throw a Link Down error on AER-capable systems and + * regardless of AER, config space of the device is never accessible again + * and typically causes the system to hang or reset when access is attempted. * http://www.spinics.net/lists/linux-pci/msg34797.html */ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset); static void quirk_no_pm_reset(struct pci_dev *dev) { diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c index 4be3f5dbb..31156c9c4 100644 --- a/drivers/phy/phy-rcar-gen3-usb2.c +++ b/drivers/phy/phy-rcar-gen3-usb2.c @@ -21,6 +21,7 @@ #include <linux/phy/phy.h> #include <linux/platform_device.h> #include <linux/regulator/consumer.h> +#include <linux/workqueue.h> /******* USB2.0 Host registers (original offset is +0x200) *******/ #define USB2_INT_ENABLE 0x000 @@ -81,9 +82,25 @@ struct rcar_gen3_chan { struct extcon_dev *extcon; struct phy *phy; struct regulator *vbus; + struct work_struct work; + bool extcon_host; bool has_otg; }; +static void rcar_gen3_phy_usb2_work(struct work_struct *work) +{ + struct rcar_gen3_chan *ch = container_of(work, struct rcar_gen3_chan, + work); + + if (ch->extcon_host) { + extcon_set_cable_state_(ch->extcon, EXTCON_USB_HOST, true); + extcon_set_cable_state_(ch->extcon, EXTCON_USB, false); + } else { + extcon_set_cable_state_(ch->extcon, EXTCON_USB_HOST, false); + extcon_set_cable_state_(ch->extcon, EXTCON_USB, true); + } +} + static void rcar_gen3_set_host_mode(struct rcar_gen3_chan *ch, int host) { void __iomem *usb2_base = ch->base; @@ -130,8 +147,8 @@ static void rcar_gen3_init_for_host(struct rcar_gen3_chan *ch) rcar_gen3_set_host_mode(ch, 1); rcar_gen3_enable_vbus_ctrl(ch, 1); - extcon_set_cable_state_(ch->extcon, EXTCON_USB_HOST, true); - extcon_set_cable_state_(ch->extcon, EXTCON_USB, false); + ch->extcon_host = true; + schedule_work(&ch->work); } static void rcar_gen3_init_for_peri(struct rcar_gen3_chan *ch) @@ -140,8 +157,8 @@ static void rcar_gen3_init_for_peri(struct rcar_gen3_chan *ch) rcar_gen3_set_host_mode(ch, 0); rcar_gen3_enable_vbus_ctrl(ch, 0); - extcon_set_cable_state_(ch->extcon, EXTCON_USB_HOST, false); - extcon_set_cable_state_(ch->extcon, EXTCON_USB, true); + ch->extcon_host = false; + schedule_work(&ch->work); } static bool rcar_gen3_check_id(struct rcar_gen3_chan *ch) @@ -301,6 +318,7 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev) if (irq >= 0) { int ret; + INIT_WORK(&channel->work, rcar_gen3_phy_usb2_work); irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq, IRQF_SHARED, dev_name(dev), channel); if (irq < 0) diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index ac4f564f1..bf65c948b 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -160,7 +160,6 @@ struct chv_pin_context { * @pctldev: Pointer to the pin controller device * @chip: GPIO chip in this pin controller * @regs: MMIO registers - * @lock: Lock to serialize register accesses * @intr_lines: Stores mapping between 16 HW interrupt wires and GPIO * offset (in GPIO number space) * @community: Community this pinctrl instance represents @@ -174,7 +173,6 @@ struct chv_pinctrl { struct pinctrl_dev *pctldev; struct gpio_chip chip; void __iomem *regs; - raw_spinlock_t lock; unsigned intr_lines[16]; const struct chv_community *community; u32 saved_intmask; @@ -657,6 +655,17 @@ static const struct chv_community *chv_communities[] = { &southeast_community, }; +/* + * Lock to serialize register accesses + * + * Due to a silicon issue, a shared lock must be used to prevent + * concurrent accesses across the 4 GPIO controllers. + * + * See Intel Atom Z8000 Processor Series Specification Update (Rev. 005), + * errata #CHT34, for further information. + */ +static DEFINE_RAW_SPINLOCK(chv_lock); + static void __iomem *chv_padreg(struct chv_pinctrl *pctrl, unsigned offset, unsigned reg) { @@ -718,13 +727,13 @@ static void chv_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, u32 ctrl0, ctrl1; bool locked; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0)); ctrl1 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL1)); locked = chv_pad_locked(pctrl, offset); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); if (ctrl0 & CHV_PADCTRL0_GPIOEN) { seq_puts(s, "GPIO "); @@ -787,14 +796,14 @@ static int chv_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned function, grp = &pctrl->community->groups[group]; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); /* Check first that the pad is not locked */ for (i = 0; i < grp->npins; i++) { if (chv_pad_locked(pctrl, grp->pins[i])) { dev_warn(pctrl->dev, "unable to set mode for locked pin %u\n", grp->pins[i]); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EBUSY; } } @@ -837,7 +846,7 @@ static int chv_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned function, pin, altfunc->mode, altfunc->invert_oe ? "" : "not "); } - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -851,13 +860,13 @@ static int chv_gpio_request_enable(struct pinctrl_dev *pctldev, void __iomem *reg; u32 value; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); if (chv_pad_locked(pctrl, offset)) { value = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0)); if (!(value & CHV_PADCTRL0_GPIOEN)) { /* Locked so cannot enable */ - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EBUSY; } } else { @@ -897,7 +906,7 @@ static int chv_gpio_request_enable(struct pinctrl_dev *pctldev, chv_writel(value, reg); } - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -911,13 +920,13 @@ static void chv_gpio_disable_free(struct pinctrl_dev *pctldev, void __iomem *reg; u32 value; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); reg = chv_padreg(pctrl, offset, CHV_PADCTRL0); value = readl(reg) & ~CHV_PADCTRL0_GPIOEN; chv_writel(value, reg); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); } static int chv_gpio_set_direction(struct pinctrl_dev *pctldev, @@ -929,7 +938,7 @@ static int chv_gpio_set_direction(struct pinctrl_dev *pctldev, unsigned long flags; u32 ctrl0; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(reg) & ~CHV_PADCTRL0_GPIOCFG_MASK; if (input) @@ -938,7 +947,7 @@ static int chv_gpio_set_direction(struct pinctrl_dev *pctldev, ctrl0 |= CHV_PADCTRL0_GPIOCFG_GPO << CHV_PADCTRL0_GPIOCFG_SHIFT; chv_writel(ctrl0, reg); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -963,10 +972,10 @@ static int chv_config_get(struct pinctrl_dev *pctldev, unsigned pin, u16 arg = 0; u32 term; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); ctrl1 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL1)); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); term = (ctrl0 & CHV_PADCTRL0_TERM_MASK) >> CHV_PADCTRL0_TERM_SHIFT; @@ -1040,7 +1049,7 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin, unsigned long flags; u32 ctrl0, pull; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(reg); switch (param) { @@ -1063,7 +1072,7 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin, pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT; break; default: - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EINVAL; } @@ -1081,7 +1090,7 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin, pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT; break; default: - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EINVAL; } @@ -1089,12 +1098,12 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned pin, break; default: - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return -EINVAL; } chv_writel(ctrl0, reg); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -1160,9 +1169,9 @@ static int chv_gpio_get(struct gpio_chip *chip, unsigned offset) unsigned long flags; u32 ctrl0, cfg; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); cfg = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK; cfg >>= CHV_PADCTRL0_GPIOCFG_SHIFT; @@ -1180,7 +1189,7 @@ static void chv_gpio_set(struct gpio_chip *chip, unsigned offset, int value) void __iomem *reg; u32 ctrl0; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); reg = chv_padreg(pctrl, pin, CHV_PADCTRL0); ctrl0 = readl(reg); @@ -1192,7 +1201,7 @@ static void chv_gpio_set(struct gpio_chip *chip, unsigned offset, int value) chv_writel(ctrl0, reg); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); } static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned offset) @@ -1202,9 +1211,9 @@ static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned offset) u32 ctrl0, direction; unsigned long flags; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); direction = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK; direction >>= CHV_PADCTRL0_GPIOCFG_SHIFT; @@ -1242,14 +1251,14 @@ static void chv_gpio_irq_ack(struct irq_data *d) int pin = chv_gpio_offset_to_pin(pctrl, irqd_to_hwirq(d)); u32 intr_line; - raw_spin_lock(&pctrl->lock); + raw_spin_lock(&chv_lock); intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); intr_line &= CHV_PADCTRL0_INTSEL_MASK; intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT; chv_writel(BIT(intr_line), pctrl->regs + CHV_INTSTAT); - raw_spin_unlock(&pctrl->lock); + raw_spin_unlock(&chv_lock); } static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask) @@ -1260,7 +1269,7 @@ static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask) u32 value, intr_line; unsigned long flags; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); intr_line &= CHV_PADCTRL0_INTSEL_MASK; @@ -1273,7 +1282,7 @@ static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask) value |= BIT(intr_line); chv_writel(value, pctrl->regs + CHV_INTMASK); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); } static void chv_gpio_irq_mask(struct irq_data *d) @@ -1307,7 +1316,7 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d) unsigned long flags; u32 intsel, value; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); intsel = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0)); intsel &= CHV_PADCTRL0_INTSEL_MASK; intsel >>= CHV_PADCTRL0_INTSEL_SHIFT; @@ -1322,7 +1331,7 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d) irq_set_handler_locked(d, handler); pctrl->intr_lines[intsel] = offset; } - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); } chv_gpio_irq_unmask(d); @@ -1338,7 +1347,7 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned type) unsigned long flags; u32 value; - raw_spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&chv_lock, flags); /* * Pins which can be used as shared interrupt are configured in @@ -1387,7 +1396,7 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned type) else if (type & IRQ_TYPE_LEVEL_MASK) irq_set_handler_locked(d, handle_level_irq); - raw_spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&chv_lock, flags); return 0; } @@ -1499,7 +1508,6 @@ static int chv_pinctrl_probe(struct platform_device *pdev) if (i == ARRAY_SIZE(chv_communities)) return -ENODEV; - raw_spin_lock_init(&pctrl->lock); pctrl->dev = &pdev->dev; #ifdef CONFIG_PM_SLEEP diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 6f145f2d0..96ffda493 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -718,6 +718,11 @@ static int __init hp_wmi_rfkill_setup(struct platform_device *device) if (err) return err; + err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &wireless, + sizeof(wireless), 0); + if (err) + return err; + if (wireless & 0x1) { wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, RFKILL_TYPE_WLAN, @@ -882,7 +887,7 @@ static int __init hp_wmi_bios_setup(struct platform_device *device) wwan_rfkill = NULL; rfkill2_count = 0; - if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device)) + if (hp_wmi_rfkill_setup(device)) hp_wmi_rfkill2_setup(device); err = device_create_file(&device->dev, &dev_attr_display); diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index 02fb6b4ea..d838e77dd 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -750,7 +750,7 @@ static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = { /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */ static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = { - REGULATOR_LINEAR_RANGE(700000, 0xc, 0x18, 25000), + REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000), }; /* voltage range for s2mps15 LDO 1 */ @@ -760,12 +760,12 @@ static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = { /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */ static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = { - REGULATOR_LINEAR_RANGE(500000, 0x20, 0xb0, 6250), + REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250), }; /* voltage range for s2mps15 BUCK 8, 9 and 10 */ static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = { - REGULATOR_LINEAR_RANGE(1000000, 0x20, 0xc0, 12500), + REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500), }; static const struct regulator_desc s2mps15_regulators[] = { diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index a8958b8fb..7668ece55 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1264,11 +1264,6 @@ int rproc_add(struct rproc *rproc) if (ret < 0) return ret; - /* expose to rproc_get_by_phandle users */ - mutex_lock(&rproc_list_mutex); - list_add(&rproc->node, &rproc_list); - mutex_unlock(&rproc_list_mutex); - dev_info(dev, "%s is available\n", rproc->name); dev_info(dev, "Note: remoteproc is still under development and considered experimental.\n"); @@ -1276,8 +1271,16 @@ int rproc_add(struct rproc *rproc) /* create debugfs entries */ rproc_create_debug_dir(rproc); + ret = rproc_add_virtio_devices(rproc); + if (ret < 0) + return ret; - return rproc_add_virtio_devices(rproc); + /* expose to rproc_get_by_phandle users */ + mutex_lock(&rproc_list_mutex); + list_add(&rproc->node, &rproc_list); + mutex_unlock(&rproc_list_mutex); + + return 0; } EXPORT_SYMBOL(rproc_add); diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index d01ad7e80..4e823c4b7 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -149,12 +149,14 @@ static int s3c_rtc_setfreq(struct s3c_rtc *info, int freq) if (!is_power_of_2(freq)) return -EINVAL; + s3c_rtc_enable_clk(info); spin_lock_irq(&info->pie_lock); if (info->data->set_freq) info->data->set_freq(info, freq); spin_unlock_irq(&info->pie_lock); + s3c_rtc_disable_clk(info); return 0; } diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c index b2afad5a5..2a34eb5f6 100644 --- a/drivers/s390/cio/cmf.c +++ b/drivers/s390/cio/cmf.c @@ -753,6 +753,17 @@ static void reset_cmb(struct ccw_device *cdev) cmf_generic_reset(cdev); } +static int cmf_enabled(struct ccw_device *cdev) +{ + int enabled; + + spin_lock_irq(cdev->ccwlock); + enabled = !!cdev->private->cmb; + spin_unlock_irq(cdev->ccwlock); + + return enabled; +} + static struct attribute_group cmf_attr_group; static struct cmb_operations cmbops_basic = { @@ -1153,13 +1164,8 @@ static ssize_t cmb_enable_show(struct device *dev, char *buf) { struct ccw_device *cdev = to_ccwdev(dev); - int enabled; - spin_lock_irq(cdev->ccwlock); - enabled = !!cdev->private->cmb; - spin_unlock_irq(cdev->ccwlock); - - return sprintf(buf, "%d\n", enabled); + return sprintf(buf, "%d\n", cmf_enabled(cdev)); } static ssize_t cmb_enable_store(struct device *dev, @@ -1199,15 +1205,20 @@ int ccw_set_cmf(struct ccw_device *cdev, int enable) * @cdev: The ccw device to be enabled * * Returns %0 for success or a negative error value. - * + * Note: If this is called on a device for which channel measurement is already + * enabled a reset of the measurement data is triggered. * Context: * non-atomic */ int enable_cmf(struct ccw_device *cdev) { - int ret; + int ret = 0; device_lock(&cdev->dev); + if (cmf_enabled(cdev)) { + cmbops->reset(cdev); + goto out_unlock; + } get_device(&cdev->dev); ret = cmbops->alloc(cdev); if (ret) @@ -1226,7 +1237,7 @@ int enable_cmf(struct ccw_device *cdev) out: if (ret) put_device(&cdev->dev); - +out_unlock: device_unlock(&cdev->dev); return ret; } diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 3bd0be627..c7e5695da 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -3874,7 +3874,7 @@ int lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, uint32_t tag; uint16_t hwq; - if (shost_use_blk_mq(cmnd->device->host)) { + if (cmnd && shost_use_blk_mq(cmnd->device->host)) { tag = blk_mq_unique_tag(cmnd->request); hwq = blk_mq_unique_tag_to_hwq(tag); diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index f4b069045..2dab3dc2a 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -4079,6 +4079,12 @@ megasas_get_pd_list(struct megasas_instance *instance) struct MR_PD_ADDRESS *pd_addr; dma_addr_t ci_h = 0; + if (instance->pd_list_not_supported) { + dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " + "not supported by firmware\n"); + return ret; + } + cmd = megasas_get_cmd(instance); if (!cmd) { diff --git a/drivers/soc/qcom/smp2p.c b/drivers/soc/qcom/smp2p.c index f1eed7f9d..9c2788b8f 100644 --- a/drivers/soc/qcom/smp2p.c +++ b/drivers/soc/qcom/smp2p.c @@ -344,11 +344,12 @@ static int qcom_smp2p_outbound_entry(struct qcom_smp2p *smp2p, /* Allocate an entry from the smem item */ strlcpy(buf, entry->name, SMP2P_MAX_ENTRY_NAME); memcpy_toio(out->entries[out->valid_entries].name, buf, SMP2P_MAX_ENTRY_NAME); - out->valid_entries++; /* Make the logical entry reference the physical value */ entry->value = &out->entries[out->valid_entries].value; + out->valid_entries++; + entry->state = qcom_smem_state_register(node, &smp2p_state_ops, entry); if (IS_ERR(entry->state)) { dev_err(smp2p->dev, "failed to register qcom_smem_state\n"); diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index fe07c0592..daf28443b 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -585,7 +585,14 @@ static void reset_sccr1(struct driver_data *drv_data) u32 sccr1_reg; sccr1_reg = pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1; - sccr1_reg &= ~SSCR1_RFT; + switch (drv_data->ssp_type) { + case QUARK_X1000_SSP: + sccr1_reg &= ~QUARK_X1000_SSCR1_RFT; + break; + default: + sccr1_reg &= ~SSCR1_RFT; + break; + } sccr1_reg |= chip->threshold; pxa2xx_spi_write(drv_data, SSCR1, sccr1_reg); } diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 50f3d3a0d..39b928c28 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -492,7 +492,8 @@ void iscsit_aborted_task(struct iscsi_conn *conn, struct iscsi_cmd *cmd) bool scsi_cmd = (cmd->iscsi_opcode == ISCSI_OP_SCSI_CMD); spin_lock_bh(&conn->cmd_lock); - if (!list_empty(&cmd->i_conn_node)) + if (!list_empty(&cmd->i_conn_node) && + !(cmd->se_cmd.transport_state & CMD_T_FABRIC_STOP)) list_del_init(&cmd->i_conn_node); spin_unlock_bh(&conn->cmd_lock); @@ -4034,6 +4035,7 @@ int iscsi_target_rx_thread(void *arg) static void iscsit_release_commands_from_conn(struct iscsi_conn *conn) { + LIST_HEAD(tmp_list); struct iscsi_cmd *cmd = NULL, *cmd_tmp = NULL; struct iscsi_session *sess = conn->sess; /* @@ -4042,18 +4044,26 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn) * has been reset -> returned sleeping pre-handler state. */ spin_lock_bh(&conn->cmd_lock); - list_for_each_entry_safe(cmd, cmd_tmp, &conn->conn_cmd_list, i_conn_node) { + list_splice_init(&conn->conn_cmd_list, &tmp_list); + list_for_each_entry(cmd, &tmp_list, i_conn_node) { + struct se_cmd *se_cmd = &cmd->se_cmd; + + if (se_cmd->se_tfo != NULL) { + spin_lock(&se_cmd->t_state_lock); + se_cmd->transport_state |= CMD_T_FABRIC_STOP; + spin_unlock(&se_cmd->t_state_lock); + } + } + spin_unlock_bh(&conn->cmd_lock); + + list_for_each_entry_safe(cmd, cmd_tmp, &tmp_list, i_conn_node) { list_del_init(&cmd->i_conn_node); - spin_unlock_bh(&conn->cmd_lock); iscsit_increment_maxcmdsn(cmd, sess); - iscsit_free_cmd(cmd, true); - spin_lock_bh(&conn->cmd_lock); } - spin_unlock_bh(&conn->cmd_lock); } static void iscsit_stop_timers_for_cmds( diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index b5212f0f9..adf419fa4 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -1371,8 +1371,9 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) } login->zero_tsih = zero_tsih; - conn->sess->se_sess->sup_prot_ops = - conn->conn_transport->iscsit_get_sup_prot_ops(conn); + if (conn->sess) + conn->sess->se_sess->sup_prot_ops = + conn->conn_transport->iscsit_get_sup_prot_ops(conn); tpg = conn->tpg; if (!tpg) { diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index a4046ca6e..6b423485c 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -821,13 +821,15 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) * in ATA and we need to set TPE=1 */ bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, - struct request_queue *q, int block_size) + struct request_queue *q) { + int block_size = queue_logical_block_size(q); + if (!blk_queue_discard(q)) return false; - attrib->max_unmap_lba_count = (q->limits.max_discard_sectors << 9) / - block_size; + attrib->max_unmap_lba_count = + q->limits.max_discard_sectors >> (ilog2(block_size) - 9); /* * Currently hardcoded to 1 in Linux/SCSI code.. */ diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 75f0f08b2..79291869b 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -161,8 +161,7 @@ static int fd_configure_device(struct se_device *dev) dev_size, div_u64(dev_size, fd_dev->fd_block_size), fd_dev->fd_block_size); - if (target_configure_unmap_from_queue(&dev->dev_attrib, q, - fd_dev->fd_block_size)) + if (target_configure_unmap_from_queue(&dev->dev_attrib, q)) pr_debug("IFILE: BLOCK Discard support available," " disabled by default\n"); /* diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 7c4efb441..2077bc286 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -121,8 +121,7 @@ static int iblock_configure_device(struct se_device *dev) dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q); dev->dev_attrib.hw_queue_depth = q->nr_requests; - if (target_configure_unmap_from_queue(&dev->dev_attrib, q, - dev->dev_attrib.hw_block_size)) + if (target_configure_unmap_from_queue(&dev->dev_attrib, q)) pr_debug("IBLOCK: BLOCK Discard support available," " disabled by default\n"); diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h index fc91e85f5..e2c970a9d 100644 --- a/drivers/target/target_core_internal.h +++ b/drivers/target/target_core_internal.h @@ -146,6 +146,7 @@ sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size); void target_qf_do_work(struct work_struct *work); bool target_check_wce(struct se_device *dev); bool target_check_fua(struct se_device *dev); +void __target_execute_cmd(struct se_cmd *, bool); /* target_core_stat.c */ void target_stat_setup_dev_default_groups(struct se_device *); diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index a9057aa07..04f616b3b 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -602,7 +602,7 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool succes cmd->transport_state |= CMD_T_ACTIVE|CMD_T_BUSY|CMD_T_SENT; spin_unlock_irq(&cmd->t_state_lock); - __target_execute_cmd(cmd); + __target_execute_cmd(cmd, false); kfree(buf); return ret; diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 5ab3967dd..42c2a44b8 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1303,23 +1303,6 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb) trace_target_sequencer_start(cmd); - /* - * Check for an existing UNIT ATTENTION condition - */ - ret = target_scsi3_ua_check(cmd); - if (ret) - return ret; - - ret = target_alua_state_check(cmd); - if (ret) - return ret; - - ret = target_check_reservation(cmd); - if (ret) { - cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT; - return ret; - } - ret = dev->transport->parse_cdb(cmd); if (ret == TCM_UNSUPPORTED_SCSI_OPCODE) pr_warn_ratelimited("%s/%s: Unsupported SCSI Opcode 0x%02x, sending CHECK_CONDITION.\n", @@ -1761,20 +1744,45 @@ queue_full: } EXPORT_SYMBOL(transport_generic_request_failure); -void __target_execute_cmd(struct se_cmd *cmd) +void __target_execute_cmd(struct se_cmd *cmd, bool do_checks) { sense_reason_t ret; - if (cmd->execute_cmd) { - ret = cmd->execute_cmd(cmd); - if (ret) { - spin_lock_irq(&cmd->t_state_lock); - cmd->transport_state &= ~(CMD_T_BUSY|CMD_T_SENT); - spin_unlock_irq(&cmd->t_state_lock); + if (!cmd->execute_cmd) { + ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + goto err; + } + if (do_checks) { + /* + * Check for an existing UNIT ATTENTION condition after + * target_handle_task_attr() has done SAM task attr + * checking, and possibly have already defered execution + * out to target_restart_delayed_cmds() context. + */ + ret = target_scsi3_ua_check(cmd); + if (ret) + goto err; + + ret = target_alua_state_check(cmd); + if (ret) + goto err; - transport_generic_request_failure(cmd, ret); + ret = target_check_reservation(cmd); + if (ret) { + cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT; + goto err; } } + + ret = cmd->execute_cmd(cmd); + if (!ret) + return; +err: + spin_lock_irq(&cmd->t_state_lock); + cmd->transport_state &= ~(CMD_T_BUSY|CMD_T_SENT); + spin_unlock_irq(&cmd->t_state_lock); + + transport_generic_request_failure(cmd, ret); } static int target_write_prot_action(struct se_cmd *cmd) @@ -1819,6 +1827,8 @@ static bool target_handle_task_attr(struct se_cmd *cmd) if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) return false; + cmd->se_cmd_flags |= SCF_TASK_ATTR_SET; + /* * Check for the existence of HEAD_OF_QUEUE, and if true return 1 * to allow the passed struct se_cmd list of tasks to the front of the list. @@ -1899,7 +1909,7 @@ void target_execute_cmd(struct se_cmd *cmd) return; } - __target_execute_cmd(cmd); + __target_execute_cmd(cmd, true); } EXPORT_SYMBOL(target_execute_cmd); @@ -1923,7 +1933,7 @@ static void target_restart_delayed_cmds(struct se_device *dev) list_del(&cmd->se_delayed_node); spin_unlock(&dev->delayed_cmd_lock); - __target_execute_cmd(cmd); + __target_execute_cmd(cmd, true); if (cmd->sam_task_attr == TCM_ORDERED_TAG) break; @@ -1941,6 +1951,9 @@ static void transport_complete_task_attr(struct se_cmd *cmd) if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) return; + if (!(cmd->se_cmd_flags & SCF_TASK_ATTR_SET)) + goto restart; + if (cmd->sam_task_attr == TCM_SIMPLE_TAG) { atomic_dec_mb(&dev->simple_cmds); dev->dev_cur_ordered_id++; @@ -1957,7 +1970,7 @@ static void transport_complete_task_attr(struct se_cmd *cmd) pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED\n", dev->dev_cur_ordered_id); } - +restart: target_restart_delayed_cmds(dev); } @@ -2557,15 +2570,10 @@ static void target_release_cmd_kref(struct kref *kref) bool fabric_stop; spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); - if (list_empty(&se_cmd->se_cmd_list)) { - spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); - target_free_cmd_mem(se_cmd); - se_cmd->se_tfo->release_cmd(se_cmd); - return; - } spin_lock(&se_cmd->t_state_lock); - fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP); + fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP) && + (se_cmd->transport_state & CMD_T_ABORTED); spin_unlock(&se_cmd->t_state_lock); if (se_cmd->cmd_wait_set || fabric_stop) { diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 954941dd8..f9c798cba 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -482,19 +482,21 @@ static void atmel_start_tx(struct uart_port *port) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - if (atmel_use_pdc_tx(port)) { - if (atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN) - /* The transmitter is already running. Yes, we - really need this.*/ - return; + if (atmel_use_pdc_tx(port) && (atmel_uart_readl(port, ATMEL_PDC_PTSR) + & ATMEL_PDC_TXTEN)) + /* The transmitter is already running. Yes, we + really need this.*/ + return; + if (atmel_use_pdc_tx(port) || atmel_use_dma_tx(port)) if ((port->rs485.flags & SER_RS485_ENABLED) && !(port->rs485.flags & SER_RS485_RX_DURING_TX)) atmel_stop_rx(port); + if (atmel_use_pdc_tx(port)) /* re-enable PDC transmit */ atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN); - } + /* Enable interrupts */ atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); } diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index b7d80bd57..7d62610d9 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -726,7 +726,7 @@ static void msm_handle_tx(struct uart_port *port) return; } - pio_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE); + pio_count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); dma_count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); dma_min = 1; /* Always DMA */ diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index 99bb23161..f0bd2ec0d 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -1684,7 +1684,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, return -ENODEV; if (port->mapbase != 0) - return 0; + return -EINVAL; /* setup info for port */ port->dev = &platdev->dev; @@ -1738,22 +1738,25 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, ourport->dma = devm_kzalloc(port->dev, sizeof(*ourport->dma), GFP_KERNEL); - if (!ourport->dma) - return -ENOMEM; + if (!ourport->dma) { + ret = -ENOMEM; + goto err; + } } ourport->clk = clk_get(&platdev->dev, "uart"); if (IS_ERR(ourport->clk)) { pr_err("%s: Controller clock not found\n", dev_name(&platdev->dev)); - return PTR_ERR(ourport->clk); + ret = PTR_ERR(ourport->clk); + goto err; } ret = clk_prepare_enable(ourport->clk); if (ret) { pr_err("uart: clock failed to prepare+enable: %d\n", ret); clk_put(ourport->clk); - return ret; + goto err; } /* Keep all interrupts masked and cleared */ @@ -1769,7 +1772,12 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, /* reset the fifos (and setup the uart) */ s3c24xx_serial_resetport(port, cfg); + return 0; + +err: + port->mapbase = 0; + return ret; } /* Device driver serial port probe */ diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 944a6dca0..d2e50a271 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -128,6 +128,9 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x04f3, 0x016f), .driver_info = USB_QUIRK_DEVICE_QUALIFIER }, + { USB_DEVICE(0x04f3, 0x0381), .driver_info = + USB_QUIRK_NO_LPM }, + { USB_DEVICE(0x04f3, 0x21b8), .driver_info = USB_QUIRK_DEVICE_QUALIFIER }, diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 07248ff1b..716f4f051 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -258,11 +258,13 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep, * We will also set SUSPHY bit to what it was before returning as stated * by the same section on Synopsys databook. */ - reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); - if (unlikely(reg & DWC3_GUSB2PHYCFG_SUSPHY)) { - susphy = true; - reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + if (dwc->gadget.speed <= USB_SPEED_HIGH) { + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); + if (unlikely(reg & DWC3_GUSB2PHYCFG_SUSPHY)) { + susphy = true; + reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + } } if (cmd == DWC3_DEPCMD_STARTTRANSFER) { @@ -2023,6 +2025,10 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, return 1; } + if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) + if ((event->status & DEPEVT_STATUS_IOC) && + (trb->ctrl & DWC3_TRB_CTRL_IOC)) + return 0; return 1; } diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index 18569de06..bb1f6c8f0 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -1920,6 +1920,8 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, udc->errata = match->data; udc->pmc = syscon_regmap_lookup_by_compatible("atmel,at91sam9g45-pmc"); + if (IS_ERR(udc->pmc)) + udc->pmc = syscon_regmap_lookup_by_compatible("atmel,at91sam9x5-pmc"); if (udc->errata && IS_ERR(udc->pmc)) return ERR_CAST(udc->pmc); diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c index ebc51ec57..717514298 100644 --- a/drivers/usb/gadget/udc/pch_udc.c +++ b/drivers/usb/gadget/udc/pch_udc.c @@ -1477,11 +1477,11 @@ static void complete_req(struct pch_udc_ep *ep, struct pch_udc_request *req, req->dma_mapped = 0; } ep->halted = 1; - spin_lock(&dev->lock); + spin_unlock(&dev->lock); if (!ep->in) pch_udc_ep_clear_rrdy(ep); usb_gadget_giveback_request(&ep->ep, &req->req); - spin_unlock(&dev->lock); + spin_lock(&dev->lock); ep->halted = halted; } @@ -2573,9 +2573,9 @@ static void pch_udc_svc_ur_interrupt(struct pch_udc_dev *dev) empty_req_queue(ep); } if (dev->driver) { - spin_lock(&dev->lock); - usb_gadget_udc_reset(&dev->gadget, dev->driver); spin_unlock(&dev->lock); + usb_gadget_udc_reset(&dev->gadget, dev->driver); + spin_lock(&dev->lock); } } @@ -2654,9 +2654,9 @@ static void pch_udc_svc_intf_interrupt(struct pch_udc_dev *dev) dev->ep[i].halted = 0; } dev->stall = 0; - spin_lock(&dev->lock); - dev->driver->setup(&dev->gadget, &dev->setup_data); spin_unlock(&dev->lock); + dev->driver->setup(&dev->gadget, &dev->setup_data); + spin_lock(&dev->lock); } /** @@ -2691,9 +2691,9 @@ static void pch_udc_svc_cfg_interrupt(struct pch_udc_dev *dev) dev->stall = 0; /* call gadget zero with setup data received */ - spin_lock(&dev->lock); - dev->driver->setup(&dev->gadget, &dev->setup_data); spin_unlock(&dev->lock); + dev->driver->setup(&dev->gadget, &dev->setup_data); + spin_lock(&dev->lock); } /** diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index 7be4e7d57..280ed5ff0 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -810,20 +810,27 @@ static void xfer_work(struct work_struct *work) { struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work); struct usbhs_pipe *pipe = pkt->pipe; - struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe); + struct usbhs_fifo *fifo; struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); struct dma_async_tx_descriptor *desc; - struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt); + struct dma_chan *chan; struct device *dev = usbhs_priv_to_dev(priv); enum dma_transfer_direction dir; + unsigned long flags; + usbhs_lock(priv, flags); + fifo = usbhs_pipe_to_fifo(pipe); + if (!fifo) + goto xfer_work_end; + + chan = usbhsf_dma_chan_get(fifo, pkt); dir = usbhs_pipe_is_dir_in(pipe) ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV; desc = dmaengine_prep_slave_single(chan, pkt->dma + pkt->actual, pkt->trans, dir, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!desc) - return; + goto xfer_work_end; desc->callback = usbhsf_dma_complete; desc->callback_param = pipe; @@ -831,7 +838,7 @@ static void xfer_work(struct work_struct *work) pkt->cookie = dmaengine_submit(desc); if (pkt->cookie < 0) { dev_err(dev, "Failed to submit dma descriptor\n"); - return; + goto xfer_work_end; } dev_dbg(dev, " %s %d (%d/ %d)\n", @@ -842,6 +849,9 @@ static void xfer_work(struct work_struct *work) usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans); dma_async_issue_pending(chan); usbhs_pipe_enable(pipe); + +xfer_work_end: + usbhs_unlock(priv, flags); } /* diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 30345c2d0..50f3363cc 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -585,6 +585,9 @@ static int usbhsg_ep_enable(struct usb_ep *ep, struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); struct usbhs_pipe *pipe; int ret = -EIO; + unsigned long flags; + + usbhs_lock(priv, flags); /* * if it already have pipe, @@ -593,7 +596,8 @@ static int usbhsg_ep_enable(struct usb_ep *ep, if (uep->pipe) { usbhs_pipe_clear(uep->pipe); usbhs_pipe_sequence_data0(uep->pipe); - return 0; + ret = 0; + goto usbhsg_ep_enable_end; } pipe = usbhs_pipe_malloc(priv, @@ -621,6 +625,9 @@ static int usbhsg_ep_enable(struct usb_ep *ep, ret = 0; } +usbhsg_ep_enable_end: + usbhs_unlock(priv, flags); + return ret; } diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index d96d423d0..8e07536c2 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -273,6 +273,7 @@ static void option_instat_callback(struct urb *urb); #define TELIT_PRODUCT_LE922_USBCFG5 0x1045 #define TELIT_PRODUCT_LE920 0x1200 #define TELIT_PRODUCT_LE910 0x1201 +#define TELIT_PRODUCT_LE910_USBCFG4 0x1206 /* ZTE PRODUCTS */ #define ZTE_VENDOR_ID 0x19d2 @@ -1198,6 +1199,8 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910), .driver_info = (kernel_ulong_t)&telit_le910_blacklist }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4), + .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920), .driver_info = (kernel_ulong_t)&telit_le920_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */ diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 476c0e3a7..f6ea8f4ba 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -202,6 +202,8 @@ static unsigned leak_balloon(struct virtio_balloon *vb, size_t num) num = min(num, ARRAY_SIZE(vb->pfns)); mutex_lock(&vb->balloon_lock); + /* We can't release more pages than taken */ + num = min(num, (size_t)vb->num_pages); for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) { page = balloon_page_dequeue(vb_dev_info); diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c index a2eec97d5..bb09de633 100644 --- a/drivers/w1/masters/omap_hdq.c +++ b/drivers/w1/masters/omap_hdq.c @@ -390,8 +390,6 @@ static int hdq_read_byte(struct hdq_data *hdq_data, u8 *val) goto out; } - hdq_data->hdq_irqstatus = 0; - if (!(hdq_data->hdq_irqstatus & OMAP_HDQ_INT_STATUS_RXCOMPLETE)) { hdq_reg_merge(hdq_data, OMAP_HDQ_CTRL_STATUS, OMAP_HDQ_CTRL_STATUS_DIR | OMAP_HDQ_CTRL_STATUS_GO, diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 75533adef..92fe3f801 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2696,12 +2696,6 @@ struct bio *btrfs_bio_clone(struct bio *bio, gfp_t gfp_mask) btrfs_bio->csum = NULL; btrfs_bio->csum_allocated = NULL; btrfs_bio->end_io = NULL; - -#ifdef CONFIG_BLK_CGROUP - /* FIXME, put this into bio_clone_bioset */ - if (bio->bi_css) - bio_associate_blkcg(new, bio->bi_css); -#endif } return new; } diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 2234e88cf..b56887b35 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1629,13 +1629,11 @@ again: * managed to copy. */ if (num_sectors > dirty_sectors) { - /* - * we round down because we don't want to count - * any partial blocks actually sent through the - * IO machines - */ - release_bytes = round_down(release_bytes - copied, - root->sectorsize); + + /* release everything except the sectors we dirtied */ + release_bytes -= dirty_sectors << + root->fs_info->sb->s_blocksize_bits; + if (copied > 0) { spin_lock(&BTRFS_I(inode)->lock); BTRFS_I(inode)->outstanding_extents++; diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c index 4ae75006e..3f7c2cd41 100644 --- a/fs/cachefiles/namei.c +++ b/fs/cachefiles/namei.c @@ -263,6 +263,8 @@ requeue: void cachefiles_mark_object_inactive(struct cachefiles_cache *cache, struct cachefiles_object *object) { + blkcnt_t i_blocks = d_backing_inode(object->dentry)->i_blocks; + write_lock(&cache->active_lock); rb_erase(&object->active_node, &cache->active_nodes); clear_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags); @@ -273,8 +275,7 @@ void cachefiles_mark_object_inactive(struct cachefiles_cache *cache, /* This object can now be culled, so we need to let the daemon know * that there is something it can remove if it needs to. */ - atomic_long_add(d_backing_inode(object->dentry)->i_blocks, - &cache->b_released); + atomic_long_add(i_blocks, &cache->b_released); if (atomic_inc_return(&cache->f_released)) cachefiles_state_changed(cache); } diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h index 3182273a3..1418daa03 100644 --- a/fs/cifs/cifs_fs_sb.h +++ b/fs/cifs/cifs_fs_sb.h @@ -46,6 +46,9 @@ #define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */ #define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */ #define CIFS_MOUNT_MAP_SFM_CHR 0x800000 /* SFM/MAC mapping for illegal chars */ +#define CIFS_MOUNT_USE_PREFIX_PATH 0x1000000 /* make subpath with unaccessible + * root mountable + */ struct cifs_sb_info { struct rb_root tlink_tree; @@ -67,5 +70,6 @@ struct cifs_sb_info { struct backing_dev_info bdi; struct delayed_work prune_tlinks; struct rcu_head rcu; + char *prepath; }; #endif /* _CIFS_FS_SB_H */ diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 6aeb8d461..8347c90cf 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -743,24 +743,26 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp) memcpy(ses->auth_key.response + baselen, tiblob, tilen); + mutex_lock(&ses->server->srv_mutex); + rc = crypto_hmacmd5_alloc(ses->server); if (rc) { cifs_dbg(VFS, "could not crypto alloc hmacmd5 rc %d\n", rc); - goto setup_ntlmv2_rsp_ret; + goto unlock; } /* calculate ntlmv2_hash */ rc = calc_ntlmv2_hash(ses, ntlmv2_hash, nls_cp); if (rc) { cifs_dbg(VFS, "could not get v2 hash rc %d\n", rc); - goto setup_ntlmv2_rsp_ret; + goto unlock; } /* calculate first part of the client response (CR1) */ rc = CalcNTLMv2_response(ses, ntlmv2_hash); if (rc) { cifs_dbg(VFS, "Could not calculate CR1 rc: %d\n", rc); - goto setup_ntlmv2_rsp_ret; + goto unlock; } /* now calculate the session key for NTLMv2 */ @@ -769,13 +771,13 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp) if (rc) { cifs_dbg(VFS, "%s: Could not set NTLMV2 Hash as a key\n", __func__); - goto setup_ntlmv2_rsp_ret; + goto unlock; } rc = crypto_shash_init(&ses->server->secmech.sdeschmacmd5->shash); if (rc) { cifs_dbg(VFS, "%s: Could not init hmacmd5\n", __func__); - goto setup_ntlmv2_rsp_ret; + goto unlock; } rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash, @@ -783,7 +785,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp) CIFS_HMAC_MD5_HASH_SIZE); if (rc) { cifs_dbg(VFS, "%s: Could not update with response\n", __func__); - goto setup_ntlmv2_rsp_ret; + goto unlock; } rc = crypto_shash_final(&ses->server->secmech.sdeschmacmd5->shash, @@ -791,6 +793,8 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp) if (rc) cifs_dbg(VFS, "%s: Could not generate md5 hash\n", __func__); +unlock: + mutex_unlock(&ses->server->srv_mutex); setup_ntlmv2_rsp_ret: kfree(tiblob); diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 5d841f39c..6bbec5e78 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -689,6 +689,14 @@ cifs_do_mount(struct file_system_type *fs_type, goto out_cifs_sb; } + if (volume_info->prepath) { + cifs_sb->prepath = kstrdup(volume_info->prepath, GFP_KERNEL); + if (cifs_sb->prepath == NULL) { + root = ERR_PTR(-ENOMEM); + goto out_cifs_sb; + } + } + cifs_setup_cifs_sb(volume_info, cifs_sb); rc = cifs_mount(cifs_sb, volume_info); @@ -727,7 +735,11 @@ cifs_do_mount(struct file_system_type *fs_type, sb->s_flags |= MS_ACTIVE; } - root = cifs_get_root(volume_info, sb); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) + root = dget(sb->s_root); + else + root = cifs_get_root(volume_info, sb); + if (IS_ERR(root)) goto out_super; diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 7d2b15c06..7ae03283b 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1228,6 +1228,8 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, vol->ops = &smb1_operations; vol->vals = &smb1_values; + vol->echo_interval = SMB_ECHO_INTERVAL_DEFAULT; + if (!mountdata) goto cifs_parse_mount_err; @@ -2049,7 +2051,7 @@ static int match_server(struct TCP_Server_Info *server, struct smb_vol *vol) if (!match_security(server, vol)) return 0; - if (server->echo_interval != vol->echo_interval) + if (server->echo_interval != vol->echo_interval * HZ) return 0; return 1; @@ -3483,6 +3485,44 @@ cifs_get_volume_info(char *mount_data, const char *devname) return volume_info; } +static int +cifs_are_all_path_components_accessible(struct TCP_Server_Info *server, + unsigned int xid, + struct cifs_tcon *tcon, + struct cifs_sb_info *cifs_sb, + char *full_path) +{ + int rc; + char *s; + char sep, tmp; + + sep = CIFS_DIR_SEP(cifs_sb); + s = full_path; + + rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, ""); + while (rc == 0) { + /* skip separators */ + while (*s == sep) + s++; + if (!*s) + break; + /* next separator */ + while (*s && *s != sep) + s++; + + /* + * temporarily null-terminate the path at the end of + * the current component + */ + tmp = *s; + *s = 0; + rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, + full_path); + *s = tmp; + } + return rc; +} + int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *volume_info) { @@ -3620,6 +3660,16 @@ remote_path_check: kfree(full_path); goto mount_fail_check; } + + rc = cifs_are_all_path_components_accessible(server, + xid, tcon, cifs_sb, + full_path); + if (rc != 0) { + cifs_dbg(VFS, "cannot query dirs between root and final path, " + "enabling CIFS_MOUNT_USE_PREFIX_PATH\n"); + cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH; + rc = 0; + } kfree(full_path); } @@ -3889,6 +3939,7 @@ cifs_umount(struct cifs_sb_info *cifs_sb) bdi_destroy(&cifs_sb->bdi); kfree(cifs_sb->mountdata); + kfree(cifs_sb->prepath); call_rcu(&cifs_sb->rcu, delayed_free); } diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index fb0903fff..6f7333d55 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -84,6 +84,7 @@ build_path_from_dentry(struct dentry *direntry) struct dentry *temp; int namelen; int dfsplen; + int pplen = 0; char *full_path; char dirsep; struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb); @@ -95,8 +96,12 @@ build_path_from_dentry(struct dentry *direntry) dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1); else dfsplen = 0; + + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) + pplen = cifs_sb->prepath ? strlen(cifs_sb->prepath) + 1 : 0; + cifs_bp_rename_retry: - namelen = dfsplen; + namelen = dfsplen + pplen; seq = read_seqbegin(&rename_lock); rcu_read_lock(); for (temp = direntry; !IS_ROOT(temp);) { @@ -137,7 +142,7 @@ cifs_bp_rename_retry: } } rcu_read_unlock(); - if (namelen != dfsplen || read_seqretry(&rename_lock, seq)) { + if (namelen != dfsplen + pplen || read_seqretry(&rename_lock, seq)) { cifs_dbg(FYI, "did not end path lookup where expected. namelen=%ddfsplen=%d\n", namelen, dfsplen); /* presumably this is only possible if racing with a rename @@ -153,6 +158,17 @@ cifs_bp_rename_retry: those safely to '/' if any are found in the middle of the prepath */ /* BB test paths to Windows with '/' in the midst of prepath */ + if (pplen) { + int i; + + cifs_dbg(FYI, "using cifs_sb prepath <%s>\n", cifs_sb->prepath); + memcpy(full_path+dfsplen+1, cifs_sb->prepath, pplen-1); + full_path[dfsplen] = '\\'; + for (i = 0; i < pplen-1; i++) + if (full_path[dfsplen+1+i] == '/') + full_path[dfsplen+1+i] = CIFS_DIR_SEP(cifs_sb); + } + if (dfsplen) { strncpy(full_path, tcon->treeName, dfsplen); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) { @@ -229,6 +245,13 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid, goto cifs_create_get_file_info; } + if (S_ISDIR(newinode->i_mode)) { + CIFSSMBClose(xid, tcon, fid->netfid); + iput(newinode); + rc = -EISDIR; + goto out; + } + if (!S_ISREG(newinode->i_mode)) { /* * The server may allow us to open things like @@ -399,10 +422,14 @@ cifs_create_set_dentry: if (rc != 0) { cifs_dbg(FYI, "Create worked, get_inode_info failed rc = %d\n", rc); - if (server->ops->close) - server->ops->close(xid, tcon, fid); - goto out; + goto out_err; } + + if (S_ISDIR(newinode->i_mode)) { + rc = -EISDIR; + goto out_err; + } + d_drop(direntry); d_add(direntry, newinode); @@ -410,6 +437,13 @@ out: kfree(buf); kfree(full_path); return rc; + +out_err: + if (server->ops->close) + server->ops->close(xid, tcon, fid); + if (newinode) + iput(newinode); + goto out; } int diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 514dadb05..b87efd0c9 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1002,10 +1002,26 @@ struct inode *cifs_root_iget(struct super_block *sb) struct inode *inode = NULL; long rc; struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb); + char *path = NULL; + int len; + + if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) + && cifs_sb->prepath) { + len = strlen(cifs_sb->prepath); + path = kzalloc(len + 2 /* leading sep + null */, GFP_KERNEL); + if (path == NULL) + return ERR_PTR(-ENOMEM); + path[0] = '/'; + memcpy(path+1, cifs_sb->prepath, len); + } else { + path = kstrdup("", GFP_KERNEL); + if (path == NULL) + return ERR_PTR(-ENOMEM); + } xid = get_xid(); if (tcon->unix_ext) { - rc = cifs_get_inode_info_unix(&inode, "", sb, xid); + rc = cifs_get_inode_info_unix(&inode, path, sb, xid); /* some servers mistakenly claim POSIX support */ if (rc != -EOPNOTSUPP) goto iget_no_retry; @@ -1013,7 +1029,8 @@ struct inode *cifs_root_iget(struct super_block *sb) tcon->unix_ext = false; } - rc = cifs_get_inode_info(&inode, "", NULL, sb, xid, NULL); + convert_delimiter(path, CIFS_DIR_SEP(cifs_sb)); + rc = cifs_get_inode_info(&inode, path, NULL, sb, xid, NULL); iget_no_retry: if (!inode) { @@ -1042,6 +1059,7 @@ iget_no_retry: } out: + kfree(path); /* can not call macro free_xid here since in a void func * TODO: This is no longer true */ diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 3525ed756..505e6d640 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -1044,6 +1044,9 @@ smb2_new_lease_key(struct cifs_fid *fid) get_random_bytes(fid->lease_key, SMB2_LEASE_KEY_SIZE); } +#define SMB2_SYMLINK_STRUCT_SIZE \ + (sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp)) + static int smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, const char *full_path, char **target_path, @@ -1056,7 +1059,10 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, struct cifs_fid fid; struct smb2_err_rsp *err_buf = NULL; struct smb2_symlink_err_rsp *symlink; - unsigned int sub_len, sub_offset; + unsigned int sub_len; + unsigned int sub_offset; + unsigned int print_len; + unsigned int print_offset; cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path); @@ -1077,11 +1083,33 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, kfree(utf16_path); return -ENOENT; } + + if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) || + get_rfc1002_length(err_buf) + 4 < SMB2_SYMLINK_STRUCT_SIZE) { + kfree(utf16_path); + return -ENOENT; + } + /* open must fail on symlink - reset rc */ rc = 0; symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData; sub_len = le16_to_cpu(symlink->SubstituteNameLength); sub_offset = le16_to_cpu(symlink->SubstituteNameOffset); + print_len = le16_to_cpu(symlink->PrintNameLength); + print_offset = le16_to_cpu(symlink->PrintNameOffset); + + if (get_rfc1002_length(err_buf) + 4 < + SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) { + kfree(utf16_path); + return -ENOENT; + } + + if (get_rfc1002_length(err_buf) + 4 < + SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) { + kfree(utf16_path); + return -ENOENT; + } + *target_path = cifs_strndup_from_utf16( (char *)symlink->PathBuffer + sub_offset, sub_len, true, cifs_sb->local_nls); diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 700780961..78313adb3 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -124,7 +124,7 @@ static int journal_submit_commit_record(journal_t *journal, struct commit_header *tmp; struct buffer_head *bh; int ret; - struct timespec now = current_kernel_time(); + struct timespec64 now = current_kernel_time64(); *cbh = NULL; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index ff416d0e2..7796beacd 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -427,6 +427,7 @@ static int nfs4_do_handle_exception(struct nfs_server *server, case -NFS4ERR_DELAY: nfs_inc_server_stats(server, NFSIOS_DELAY); case -NFS4ERR_GRACE: + case -NFS4ERR_LAYOUTTRYLATER: case -NFS4ERR_RECALLCONFLICT: exception->delay = 1; return 0; @@ -7869,11 +7870,13 @@ nfs4_layoutget_handle_exception(struct rpc_task *task, struct inode *inode = lgp->args.inode; struct nfs_server *server = NFS_SERVER(inode); struct pnfs_layout_hdr *lo; - int status = task->tk_status; + int nfs4err = task->tk_status; + int err, status = 0; + LIST_HEAD(head); dprintk("--> %s tk_status => %d\n", __func__, -task->tk_status); - switch (status) { + switch (nfs4err) { case 0: goto out; @@ -7905,45 +7908,43 @@ nfs4_layoutget_handle_exception(struct rpc_task *task, status = -EOVERFLOW; goto out; } - /* Fallthrough */ + status = -EBUSY; + break; case -NFS4ERR_RECALLCONFLICT: - nfs4_handle_exception(server, -NFS4ERR_RECALLCONFLICT, - exception); status = -ERECALLCONFLICT; - goto out; + break; case -NFS4ERR_EXPIRED: case -NFS4ERR_BAD_STATEID: exception->timeout = 0; spin_lock(&inode->i_lock); - if (nfs4_stateid_match(&lgp->args.stateid, + lo = NFS_I(inode)->layout; + /* If the open stateid was bad, then recover it. */ + if (!lo || test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) || + nfs4_stateid_match_other(&lgp->args.stateid, &lgp->args.ctx->state->stateid)) { spin_unlock(&inode->i_lock); - /* If the open stateid was bad, then recover it. */ exception->state = lgp->args.ctx->state; break; } - lo = NFS_I(inode)->layout; - if (lo && !test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) && - nfs4_stateid_match_other(&lgp->args.stateid, &lo->plh_stateid)) { - LIST_HEAD(head); - - /* - * Mark the bad layout state as invalid, then retry - * with the current stateid. - */ - set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); - pnfs_mark_matching_lsegs_invalid(lo, &head, NULL, 0); - spin_unlock(&inode->i_lock); - pnfs_free_lseg_list(&head); - status = -EAGAIN; - goto out; - } else - spin_unlock(&inode->i_lock); - } - status = nfs4_handle_exception(server, status, exception); - if (exception->retry) + /* + * Mark the bad layout state as invalid, then retry + */ + set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); + pnfs_mark_matching_lsegs_invalid(lo, &head, NULL, 0); + spin_unlock(&inode->i_lock); + pnfs_free_lseg_list(&head); status = -EAGAIN; + goto out; + } + + err = nfs4_handle_exception(server, nfs4err, exception); + if (!status) { + if (exception->retry) + status = -EAGAIN; + else + status = err; + } out: dprintk("<-- %s\n", __func__); return status; diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 0fbe734cc..7d992362f 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1505,7 +1505,7 @@ pnfs_update_layout(struct inode *ino, struct pnfs_layout_segment *lseg = NULL; nfs4_stateid stateid; long timeout = 0; - unsigned long giveup = jiffies + rpc_get_timeout(server->client); + unsigned long giveup = jiffies + (clp->cl_lease_time << 1); bool first; if (!pnfs_enabled_sb(NFS_SERVER(ino))) { @@ -1645,33 +1645,44 @@ lookup_again: lseg = send_layoutget(lo, ctx, &stateid, &arg, &timeout, gfp_flags); trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET); + atomic_dec(&lo->plh_outstanding); if (IS_ERR(lseg)) { switch(PTR_ERR(lseg)) { - case -ERECALLCONFLICT: + case -EBUSY: if (time_after(jiffies, giveup)) lseg = NULL; - /* Fallthrough */ - case -EAGAIN: - pnfs_put_layout_hdr(lo); - if (first) - pnfs_clear_first_layoutget(lo); - if (lseg) { - trace_pnfs_update_layout(ino, pos, count, - iomode, lo, lseg, PNFS_UPDATE_LAYOUT_RETRY); - goto lookup_again; + break; + case -ERECALLCONFLICT: + /* Huh? We hold no layouts, how is there a recall? */ + if (first) { + lseg = NULL; + break; } + /* Destroy the existing layout and start over */ + if (time_after(jiffies, giveup)) + pnfs_destroy_layout(NFS_I(ino)); /* Fallthrough */ + case -EAGAIN: + break; default: if (!nfs_error_is_fatal(PTR_ERR(lseg))) { pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); lseg = NULL; } + goto out_put_layout_hdr; + } + if (lseg) { + if (first) + pnfs_clear_first_layoutget(lo); + trace_pnfs_update_layout(ino, pos, count, + iomode, lo, lseg, PNFS_UPDATE_LAYOUT_RETRY); + pnfs_put_layout_hdr(lo); + goto lookup_again; } } else { pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); } - atomic_dec(&lo->plh_outstanding); out_put_layout_hdr: if (first) pnfs_clear_first_layoutget(lo); diff --git a/fs/nfs/write.c b/fs/nfs/write.c index e1c74d3db..649fa5e26 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1289,6 +1289,9 @@ int nfs_updatepage(struct file *file, struct page *page, dprintk("NFS: nfs_updatepage(%pD2 %d@%lld)\n", file, count, (long long)(page_file_offset(page) + offset)); + if (!count) + goto out; + if (nfs_can_extend_write(file, page, inode)) { count = max(count + offset, nfs_page_length(page)); offset = 0; @@ -1299,7 +1302,7 @@ int nfs_updatepage(struct file *file, struct page *page, nfs_set_pageerror(page); else __set_page_dirty_nobuffers(page); - +out: dprintk("NFS: nfs_updatepage returns %d (isize %lld)\n", status, (long long)i_size_read(inode)); return status; diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 70d0b9b33..806eda192 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4906,6 +4906,32 @@ nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, return nfs_ok; } +static __be32 +nfsd4_free_lock_stateid(stateid_t *stateid, struct nfs4_stid *s) +{ + struct nfs4_ol_stateid *stp = openlockstateid(s); + __be32 ret; + + mutex_lock(&stp->st_mutex); + + ret = check_stateid_generation(stateid, &s->sc_stateid, 1); + if (ret) + goto out; + + ret = nfserr_locks_held; + if (check_for_locks(stp->st_stid.sc_file, + lockowner(stp->st_stateowner))) + goto out; + + release_lock_stateid(stp); + ret = nfs_ok; + +out: + mutex_unlock(&stp->st_mutex); + nfs4_put_stid(s); + return ret; +} + __be32 nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_free_stateid *free_stateid) @@ -4913,7 +4939,6 @@ nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, stateid_t *stateid = &free_stateid->fr_stateid; struct nfs4_stid *s; struct nfs4_delegation *dp; - struct nfs4_ol_stateid *stp; struct nfs4_client *cl = cstate->session->se_client; __be32 ret = nfserr_bad_stateid; @@ -4932,18 +4957,9 @@ nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, ret = nfserr_locks_held; break; case NFS4_LOCK_STID: - ret = check_stateid_generation(stateid, &s->sc_stateid, 1); - if (ret) - break; - stp = openlockstateid(s); - ret = nfserr_locks_held; - if (check_for_locks(stp->st_stid.sc_file, - lockowner(stp->st_stateowner))) - break; - WARN_ON(!unhash_lock_stateid(stp)); + atomic_inc(&s->sc_count); spin_unlock(&cl->cl_lock); - nfs4_put_stid(s); - ret = nfs_ok; + ret = nfsd4_free_lock_stateid(stateid, s); goto out; case NFS4_REVOKED_DELEG_STID: dp = delegstateid(s); @@ -5510,7 +5526,7 @@ static __be32 lookup_or_create_lock_state(struct nfsd4_compound_state *cstate, struct nfs4_ol_stateid *ost, struct nfsd4_lock *lock, - struct nfs4_ol_stateid **lst, bool *new) + struct nfs4_ol_stateid **plst, bool *new) { __be32 status; struct nfs4_file *fi = ost->st_stid.sc_file; @@ -5518,7 +5534,9 @@ lookup_or_create_lock_state(struct nfsd4_compound_state *cstate, struct nfs4_client *cl = oo->oo_owner.so_client; struct inode *inode = d_inode(cstate->current_fh.fh_dentry); struct nfs4_lockowner *lo; + struct nfs4_ol_stateid *lst; unsigned int strhashval; + bool hashed; lo = find_lockowner_str(cl, &lock->lk_new_owner); if (!lo) { @@ -5534,12 +5552,27 @@ lookup_or_create_lock_state(struct nfsd4_compound_state *cstate, goto out; } - *lst = find_or_create_lock_stateid(lo, fi, inode, ost, new); - if (*lst == NULL) { +retry: + lst = find_or_create_lock_stateid(lo, fi, inode, ost, new); + if (lst == NULL) { status = nfserr_jukebox; goto out; } + + mutex_lock(&lst->st_mutex); + + /* See if it's still hashed to avoid race with FREE_STATEID */ + spin_lock(&cl->cl_lock); + hashed = !list_empty(&lst->st_perfile); + spin_unlock(&cl->cl_lock); + + if (!hashed) { + mutex_unlock(&lst->st_mutex); + nfs4_put_stid(&lst->st_stid); + goto retry; + } status = nfs_ok; + *plst = lst; out: nfs4_put_stateowner(&lo->lo_owner); return status; @@ -5606,8 +5639,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, goto out; status = lookup_or_create_lock_state(cstate, open_stp, lock, &lock_stp, &new); - if (status == nfs_ok) - mutex_lock(&lock_stp->st_mutex); } else { status = nfs4_preprocess_seqid_op(cstate, lock->lk_old_lock_seqid, diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index 9a7693d5f..6db75cbb6 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -404,7 +404,8 @@ static struct ovl_entry *ovl_alloc_entry(unsigned int numlower) static bool ovl_dentry_remote(struct dentry *dentry) { return dentry->d_flags & - (DCACHE_OP_REVALIDATE | DCACHE_OP_WEAK_REVALIDATE); + (DCACHE_OP_REVALIDATE | DCACHE_OP_WEAK_REVALIDATE | + DCACHE_OP_REAL); } static bool ovl_dentry_weird(struct dentry *dentry) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 9f1420d41..b15db62b3 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -87,6 +87,12 @@ xfs_find_bdev_for_inode( * We're now finished for good with this page. Update the page state via the * associated buffer_heads, paying attention to the start and end offsets that * we need to process on the page. + * + * Landmine Warning: bh->b_end_io() will call end_page_writeback() on the last + * buffer in the IO. Once it does this, it is unsafe to access the bufferhead or + * the page at all, as we may be racing with memory reclaim and it can free both + * the bufferhead chain and the page as it will see the page as clean and + * unused. */ static void xfs_finish_page_writeback( @@ -95,8 +101,9 @@ xfs_finish_page_writeback( int error) { unsigned int end = bvec->bv_offset + bvec->bv_len - 1; - struct buffer_head *head, *bh; + struct buffer_head *head, *bh, *next; unsigned int off = 0; + unsigned int bsize; ASSERT(bvec->bv_offset < PAGE_SIZE); ASSERT((bvec->bv_offset & ((1 << inode->i_blkbits) - 1)) == 0); @@ -105,15 +112,17 @@ xfs_finish_page_writeback( bh = head = page_buffers(bvec->bv_page); + bsize = bh->b_size; do { + next = bh->b_this_page; if (off < bvec->bv_offset) goto next_bh; if (off > end) break; bh->b_end_io(bh, !error); next_bh: - off += bh->b_size; - } while ((bh = bh->b_this_page) != head); + off += bsize; + } while ((bh = next) != head); } /* diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h index 1212c374b..5a5658857 100644 --- a/include/linux/backing-dev-defs.h +++ b/include/linux/backing-dev-defs.h @@ -165,6 +165,7 @@ struct backing_dev_info { wait_queue_head_t wb_waitq; struct device *dev; + struct device *owner; struct timer_list laptop_mode_wb_timer; diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index c82794f20..89d3de3e0 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -24,6 +24,7 @@ __printf(3, 4) int bdi_register(struct backing_dev_info *bdi, struct device *parent, const char *fmt, ...); int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev); +int bdi_register_owner(struct backing_dev_info *bdi, struct device *owner); void bdi_unregister(struct backing_dev_info *bdi); int __must_check bdi_setup_and_register(struct backing_dev_info *, char *); diff --git a/include/linux/bio.h b/include/linux/bio.h index 8e69cfa34..8af9ef2cc 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -529,11 +529,14 @@ extern unsigned int bvec_nr_vecs(unsigned short idx); int bio_associate_blkcg(struct bio *bio, struct cgroup_subsys_state *blkcg_css); int bio_associate_current(struct bio *bio); void bio_disassociate_task(struct bio *bio); +void bio_clone_blkcg_association(struct bio *dst, struct bio *src); #else /* CONFIG_BLK_CGROUP */ static inline int bio_associate_blkcg(struct bio *bio, struct cgroup_subsys_state *blkcg_css) { return 0; } static inline int bio_associate_current(struct bio *bio) { return -ENOENT; } static inline void bio_disassociate_task(struct bio *bio) { } +static inline void bio_clone_blkcg_association(struct bio *dst, + struct bio *src) { } #endif /* CONFIG_BLK_CGROUP */ #ifdef CONFIG_HIGHMEM diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h index ab310819a..7879bf411 100644 --- a/include/linux/mlx5/qp.h +++ b/include/linux/mlx5/qp.h @@ -556,9 +556,9 @@ struct mlx5_destroy_qp_mbox_out { struct mlx5_modify_qp_mbox_in { struct mlx5_inbox_hdr hdr; __be32 qpn; - u8 rsvd1[4]; - __be32 optparam; u8 rsvd0[4]; + __be32 optparam; + u8 rsvd1[4]; struct mlx5_qp_context ctx; u8 rsvd2[16]; }; diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 7e440d414..e694f02d4 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1428,6 +1428,10 @@ struct ib_srq { } ext; }; +/* + * @max_write_sge: Maximum SGE elements per RDMA WRITE request. + * @max_read_sge: Maximum SGE elements per RDMA READ request. + */ struct ib_qp { struct ib_device *device; struct ib_pd *pd; @@ -1449,6 +1453,8 @@ struct ib_qp { void (*event_handler)(struct ib_event *, void *); void *qp_context; u32 qp_num; + u32 max_write_sge; + u32 max_read_sge; enum ib_qp_type qp_type; }; diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h index d8ab5101f..f6f3bc52c 100644 --- a/include/target/target_core_backend.h +++ b/include/target/target_core_backend.h @@ -95,6 +95,6 @@ sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd, bool target_sense_desc_format(struct se_device *dev); sector_t target_to_linux_sector(struct se_device *dev, sector_t lb); bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, - struct request_queue *q, int block_size); + struct request_queue *q); #endif /* TARGET_CORE_BACKEND_H */ diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index b316b44d0..fb8e3b6fe 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -142,6 +142,7 @@ enum se_cmd_flags_table { SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000, SCF_ACK_KREF = 0x00400000, SCF_USE_CPUID = 0x00800000, + SCF_TASK_ATTR_SET = 0x01000000, }; /* diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h index de44462a7..5cd6faa6e 100644 --- a/include/target/target_core_fabric.h +++ b/include/target/target_core_fabric.h @@ -163,7 +163,6 @@ int core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t); void core_tmr_release_req(struct se_tmr_req *); int transport_generic_handle_tmr(struct se_cmd *); void transport_generic_request_failure(struct se_cmd *, sense_reason_t); -void __target_execute_cmd(struct se_cmd *); int transport_lookup_tmr_lun(struct se_cmd *, u64); void core_allocate_nexus_loss_ua(struct se_node_acl *acl); diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 003dca933..5664ca07c 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -529,20 +529,27 @@ TRACE_EVENT(svc_xprt_do_enqueue, TP_STRUCT__entry( __field(struct svc_xprt *, xprt) - __field_struct(struct sockaddr_storage, ss) __field(int, pid) __field(unsigned long, flags) + __dynamic_array(unsigned char, addr, xprt != NULL ? + xprt->xpt_remotelen : 0) ), TP_fast_assign( __entry->xprt = xprt; - xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss)); __entry->pid = rqst? rqst->rq_task->pid : 0; - __entry->flags = xprt ? xprt->xpt_flags : 0; + if (xprt) { + memcpy(__get_dynamic_array(addr), + &xprt->xpt_remote, + xprt->xpt_remotelen); + __entry->flags = xprt->xpt_flags; + } else + __entry->flags = 0; ), TP_printk("xprt=0x%p addr=%pIScp pid=%d flags=%s", __entry->xprt, - (struct sockaddr *)&__entry->ss, + __get_dynamic_array_len(addr) != 0 ? + (struct sockaddr *)__get_dynamic_array(addr) : NULL, __entry->pid, show_svc_xprt_flags(__entry->flags)) ); @@ -553,18 +560,25 @@ TRACE_EVENT(svc_xprt_dequeue, TP_STRUCT__entry( __field(struct svc_xprt *, xprt) - __field_struct(struct sockaddr_storage, ss) __field(unsigned long, flags) + __dynamic_array(unsigned char, addr, xprt != NULL ? + xprt->xpt_remotelen : 0) ), TP_fast_assign( - __entry->xprt = xprt, - xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss)); - __entry->flags = xprt ? xprt->xpt_flags : 0; + __entry->xprt = xprt; + if (xprt) { + memcpy(__get_dynamic_array(addr), + &xprt->xpt_remote, + xprt->xpt_remotelen); + __entry->flags = xprt->xpt_flags; + } else + __entry->flags = 0; ), TP_printk("xprt=0x%p addr=%pIScp flags=%s", __entry->xprt, - (struct sockaddr *)&__entry->ss, + __get_dynamic_array_len(addr) != 0 ? + (struct sockaddr *)__get_dynamic_array(addr) : NULL, show_svc_xprt_flags(__entry->flags)) ); @@ -592,19 +606,26 @@ TRACE_EVENT(svc_handle_xprt, TP_STRUCT__entry( __field(struct svc_xprt *, xprt) __field(int, len) - __field_struct(struct sockaddr_storage, ss) __field(unsigned long, flags) + __dynamic_array(unsigned char, addr, xprt != NULL ? + xprt->xpt_remotelen : 0) ), TP_fast_assign( __entry->xprt = xprt; - xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss)); __entry->len = len; - __entry->flags = xprt ? xprt->xpt_flags : 0; + if (xprt) { + memcpy(__get_dynamic_array(addr), + &xprt->xpt_remote, + xprt->xpt_remotelen); + __entry->flags = xprt->xpt_flags; + } else + __entry->flags = 0; ), TP_printk("xprt=0x%p addr=%pIScp len=%d flags=%s", __entry->xprt, - (struct sockaddr *)&__entry->ss, + __get_dynamic_array_len(addr) != 0 ? + (struct sockaddr *)__get_dynamic_array(addr) : NULL, __entry->len, show_svc_xprt_flags(__entry->flags)) ); #endif /* _TRACE_SUNRPC_H */ diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 2672d105c..b3341284f 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -72,6 +72,7 @@ #include <linux/compat.h> #include <linux/ctype.h> #include <linux/string.h> +#include <linux/uaccess.h> #include <uapi/linux/limits.h> #include "audit.h" @@ -81,7 +82,8 @@ #define AUDITSC_SUCCESS 1 #define AUDITSC_FAILURE 2 -/* no execve audit message should be longer than this (userspace limits) */ +/* no execve audit message should be longer than this (userspace limits), + * see the note near the top of audit_log_execve_info() about this value */ #define MAX_EXECVE_AUDIT_LEN 7500 /* max length to print of cmdline/proctitle value during audit */ @@ -987,184 +989,178 @@ static int audit_log_pid_context(struct audit_context *context, pid_t pid, return rc; } -/* - * to_send and len_sent accounting are very loose estimates. We aren't - * really worried about a hard cap to MAX_EXECVE_AUDIT_LEN so much as being - * within about 500 bytes (next page boundary) - * - * why snprintf? an int is up to 12 digits long. if we just assumed when - * logging that a[%d]= was going to be 16 characters long we would be wasting - * space in every audit message. In one 7500 byte message we can log up to - * about 1000 min size arguments. That comes down to about 50% waste of space - * if we didn't do the snprintf to find out how long arg_num_len was. - */ -static int audit_log_single_execve_arg(struct audit_context *context, - struct audit_buffer **ab, - int arg_num, - size_t *len_sent, - const char __user *p, - char *buf) +static void audit_log_execve_info(struct audit_context *context, + struct audit_buffer **ab) { - char arg_num_len_buf[12]; - const char __user *tmp_p = p; - /* how many digits are in arg_num? 5 is the length of ' a=""' */ - size_t arg_num_len = snprintf(arg_num_len_buf, 12, "%d", arg_num) + 5; - size_t len, len_left, to_send; - size_t max_execve_audit_len = MAX_EXECVE_AUDIT_LEN; - unsigned int i, has_cntl = 0, too_long = 0; - int ret; - - /* strnlen_user includes the null we don't want to send */ - len_left = len = strnlen_user(p, MAX_ARG_STRLEN) - 1; - - /* - * We just created this mm, if we can't find the strings - * we just copied into it something is _very_ wrong. Similar - * for strings that are too long, we should not have created - * any. - */ - if (WARN_ON_ONCE(len < 0 || len > MAX_ARG_STRLEN - 1)) { - send_sig(SIGKILL, current, 0); - return -1; + long len_max; + long len_rem; + long len_full; + long len_buf; + long len_abuf; + long len_tmp; + bool require_data; + bool encode; + unsigned int iter; + unsigned int arg; + char *buf_head; + char *buf; + const char __user *p = (const char __user *)current->mm->arg_start; + + /* NOTE: this buffer needs to be large enough to hold all the non-arg + * data we put in the audit record for this argument (see the + * code below) ... at this point in time 96 is plenty */ + char abuf[96]; + + /* NOTE: we set MAX_EXECVE_AUDIT_LEN to a rather arbitrary limit, the + * current value of 7500 is not as important as the fact that it + * is less than 8k, a setting of 7500 gives us plenty of wiggle + * room if we go over a little bit in the logging below */ + WARN_ON_ONCE(MAX_EXECVE_AUDIT_LEN > 7500); + len_max = MAX_EXECVE_AUDIT_LEN; + + /* scratch buffer to hold the userspace args */ + buf_head = kmalloc(MAX_EXECVE_AUDIT_LEN + 1, GFP_KERNEL); + if (!buf_head) { + audit_panic("out of memory for argv string"); + return; } + buf = buf_head; - /* walk the whole argument looking for non-ascii chars */ + audit_log_format(*ab, "argc=%d", context->execve.argc); + + len_rem = len_max; + len_buf = 0; + len_full = 0; + require_data = true; + encode = false; + iter = 0; + arg = 0; do { - if (len_left > MAX_EXECVE_AUDIT_LEN) - to_send = MAX_EXECVE_AUDIT_LEN; - else - to_send = len_left; - ret = copy_from_user(buf, tmp_p, to_send); - /* - * There is no reason for this copy to be short. We just - * copied them here, and the mm hasn't been exposed to user- - * space yet. - */ - if (ret) { - WARN_ON(1); - send_sig(SIGKILL, current, 0); - return -1; - } - buf[to_send] = '\0'; - has_cntl = audit_string_contains_control(buf, to_send); - if (has_cntl) { - /* - * hex messages get logged as 2 bytes, so we can only - * send half as much in each message - */ - max_execve_audit_len = MAX_EXECVE_AUDIT_LEN / 2; - break; - } - len_left -= to_send; - tmp_p += to_send; - } while (len_left > 0); - - len_left = len; - - if (len > max_execve_audit_len) - too_long = 1; - - /* rewalk the argument actually logging the message */ - for (i = 0; len_left > 0; i++) { - int room_left; - - if (len_left > max_execve_audit_len) - to_send = max_execve_audit_len; - else - to_send = len_left; - - /* do we have space left to send this argument in this ab? */ - room_left = MAX_EXECVE_AUDIT_LEN - arg_num_len - *len_sent; - if (has_cntl) - room_left -= (to_send * 2); - else - room_left -= to_send; - if (room_left < 0) { - *len_sent = 0; - audit_log_end(*ab); - *ab = audit_log_start(context, GFP_KERNEL, AUDIT_EXECVE); - if (!*ab) - return 0; - } + /* NOTE: we don't ever want to trust this value for anything + * serious, but the audit record format insists we + * provide an argument length for really long arguments, + * e.g. > MAX_EXECVE_AUDIT_LEN, so we have no choice but + * to use strncpy_from_user() to obtain this value for + * recording in the log, although we don't use it + * anywhere here to avoid a double-fetch problem */ + if (len_full == 0) + len_full = strnlen_user(p, MAX_ARG_STRLEN) - 1; + + /* read more data from userspace */ + if (require_data) { + /* can we make more room in the buffer? */ + if (buf != buf_head) { + memmove(buf_head, buf, len_buf); + buf = buf_head; + } + + /* fetch as much as we can of the argument */ + len_tmp = strncpy_from_user(&buf_head[len_buf], p, + len_max - len_buf); + if (len_tmp == -EFAULT) { + /* unable to copy from userspace */ + send_sig(SIGKILL, current, 0); + goto out; + } else if (len_tmp == (len_max - len_buf)) { + /* buffer is not large enough */ + require_data = true; + /* NOTE: if we are going to span multiple + * buffers force the encoding so we stand + * a chance at a sane len_full value and + * consistent record encoding */ + encode = true; + len_full = len_full * 2; + p += len_tmp; + } else { + require_data = false; + if (!encode) + encode = audit_string_contains_control( + buf, len_tmp); + /* try to use a trusted value for len_full */ + if (len_full < len_max) + len_full = (encode ? + len_tmp * 2 : len_tmp); + p += len_tmp + 1; + } + len_buf += len_tmp; + buf_head[len_buf] = '\0'; - /* - * first record needs to say how long the original string was - * so we can be sure nothing was lost. - */ - if ((i == 0) && (too_long)) - audit_log_format(*ab, " a%d_len=%zu", arg_num, - has_cntl ? 2*len : len); - - /* - * normally arguments are small enough to fit and we already - * filled buf above when we checked for control characters - * so don't bother with another copy_from_user - */ - if (len >= max_execve_audit_len) - ret = copy_from_user(buf, p, to_send); - else - ret = 0; - if (ret) { - WARN_ON(1); - send_sig(SIGKILL, current, 0); - return -1; + /* length of the buffer in the audit record? */ + len_abuf = (encode ? len_buf * 2 : len_buf + 2); } - buf[to_send] = '\0'; - - /* actually log it */ - audit_log_format(*ab, " a%d", arg_num); - if (too_long) - audit_log_format(*ab, "[%d]", i); - audit_log_format(*ab, "="); - if (has_cntl) - audit_log_n_hex(*ab, buf, to_send); - else - audit_log_string(*ab, buf); - - p += to_send; - len_left -= to_send; - *len_sent += arg_num_len; - if (has_cntl) - *len_sent += to_send * 2; - else - *len_sent += to_send; - } - /* include the null we didn't log */ - return len + 1; -} -static void audit_log_execve_info(struct audit_context *context, - struct audit_buffer **ab) -{ - int i, len; - size_t len_sent = 0; - const char __user *p; - char *buf; + /* write as much as we can to the audit log */ + if (len_buf > 0) { + /* NOTE: some magic numbers here - basically if we + * can't fit a reasonable amount of data into the + * existing audit buffer, flush it and start with + * a new buffer */ + if ((sizeof(abuf) + 8) > len_rem) { + len_rem = len_max; + audit_log_end(*ab); + *ab = audit_log_start(context, + GFP_KERNEL, AUDIT_EXECVE); + if (!*ab) + goto out; + } - p = (const char __user *)current->mm->arg_start; + /* create the non-arg portion of the arg record */ + len_tmp = 0; + if (require_data || (iter > 0) || + ((len_abuf + sizeof(abuf)) > len_rem)) { + if (iter == 0) { + len_tmp += snprintf(&abuf[len_tmp], + sizeof(abuf) - len_tmp, + " a%d_len=%lu", + arg, len_full); + } + len_tmp += snprintf(&abuf[len_tmp], + sizeof(abuf) - len_tmp, + " a%d[%d]=", arg, iter++); + } else + len_tmp += snprintf(&abuf[len_tmp], + sizeof(abuf) - len_tmp, + " a%d=", arg); + WARN_ON(len_tmp >= sizeof(abuf)); + abuf[sizeof(abuf) - 1] = '\0'; + + /* log the arg in the audit record */ + audit_log_format(*ab, "%s", abuf); + len_rem -= len_tmp; + len_tmp = len_buf; + if (encode) { + if (len_abuf > len_rem) + len_tmp = len_rem / 2; /* encoding */ + audit_log_n_hex(*ab, buf, len_tmp); + len_rem -= len_tmp * 2; + len_abuf -= len_tmp * 2; + } else { + if (len_abuf > len_rem) + len_tmp = len_rem - 2; /* quotes */ + audit_log_n_string(*ab, buf, len_tmp); + len_rem -= len_tmp + 2; + /* don't subtract the "2" because we still need + * to add quotes to the remaining string */ + len_abuf -= len_tmp; + } + len_buf -= len_tmp; + buf += len_tmp; + } - audit_log_format(*ab, "argc=%d", context->execve.argc); + /* ready to move to the next argument? */ + if ((len_buf == 0) && !require_data) { + arg++; + iter = 0; + len_full = 0; + require_data = true; + encode = false; + } + } while (arg < context->execve.argc); - /* - * we need some kernel buffer to hold the userspace args. Just - * allocate one big one rather than allocating one of the right size - * for every single argument inside audit_log_single_execve_arg() - * should be <8k allocation so should be pretty safe. - */ - buf = kmalloc(MAX_EXECVE_AUDIT_LEN + 1, GFP_KERNEL); - if (!buf) { - audit_panic("out of memory for argv string"); - return; - } + /* NOTE: the caller handles the final audit_log_end() call */ - for (i = 0; i < context->execve.argc; i++) { - len = audit_log_single_execve_arg(context, ab, i, - &len_sent, p, buf); - if (len <= 0) - break; - p += len; - } - kfree(buf); +out: + kfree(buf_head); } static void show_special(struct audit_context *context, int *call_panic) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 75c0ff00a..e0be49fc3 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -2215,12 +2215,8 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type, goto out_unlock; } - /* - * We know this subsystem has not yet been bound. Users in a non-init - * user namespace may only mount hierarchies with no bound subsystems, - * i.e. 'none,name=user1' - */ - if (!opts.none && !capable(CAP_SYS_ADMIN)) { + /* Hierarchies may only be created in the initial cgroup namespace. */ + if (ns != &init_cgroup_ns) { ret = -EPERM; goto out_unlock; } @@ -2962,6 +2958,7 @@ int cgroup_attach_task_all(struct task_struct *from, struct task_struct *tsk) int retval = 0; mutex_lock(&cgroup_mutex); + percpu_down_write(&cgroup_threadgroup_rwsem); for_each_root(root) { struct cgroup *from_cgrp; @@ -2976,6 +2973,7 @@ int cgroup_attach_task_all(struct task_struct *from, struct task_struct *tsk) if (retval) break; } + percpu_up_write(&cgroup_threadgroup_rwsem); mutex_unlock(&cgroup_mutex); return retval; @@ -4343,6 +4341,8 @@ int cgroup_transfer_tasks(struct cgroup *to, struct cgroup *from) mutex_lock(&cgroup_mutex); + percpu_down_write(&cgroup_threadgroup_rwsem); + /* all tasks in @from are being moved, all csets are source */ spin_lock_irq(&css_set_lock); list_for_each_entry(link, &from->cset_links, cset_link) @@ -4371,6 +4371,7 @@ int cgroup_transfer_tasks(struct cgroup *to, struct cgroup *from) } while (task && !ret); out_err: cgroup_migrate_finish(&preloaded_csets); + percpu_up_write(&cgroup_threadgroup_rwsem); mutex_unlock(&cgroup_mutex); return ret; } @@ -6309,14 +6310,11 @@ struct cgroup_namespace *copy_cgroup_ns(unsigned long flags, if (!ns_capable(user_ns, CAP_SYS_ADMIN)) return ERR_PTR(-EPERM); - mutex_lock(&cgroup_mutex); + /* It is not safe to take cgroup_mutex here */ spin_lock_irq(&css_set_lock); - cset = task_css_set(current); get_css_set(cset); - spin_unlock_irq(&css_set_lock); - mutex_unlock(&cgroup_mutex); new_ns = alloc_cgroup_ns(); if (IS_ERR(new_ns)) { diff --git a/kernel/module.c b/kernel/module.c index 5f71aa63e..6458a2f17 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2687,13 +2687,18 @@ static inline void kmemleak_load_module(const struct module *mod, #endif #ifdef CONFIG_MODULE_SIG -static int module_sig_check(struct load_info *info) +static int module_sig_check(struct load_info *info, int flags) { int err = -ENOKEY; const unsigned long markerlen = sizeof(MODULE_SIG_STRING) - 1; const void *mod = info->hdr; - if (info->len > markerlen && + /* + * Require flags == 0, as a module with version information + * removed is no longer the module that was signed + */ + if (flags == 0 && + info->len > markerlen && memcmp(mod + info->len - markerlen, MODULE_SIG_STRING, markerlen) == 0) { /* We truncate the module to discard the signature */ info->len -= markerlen; @@ -2712,7 +2717,7 @@ static int module_sig_check(struct load_info *info) return err; } #else /* !CONFIG_MODULE_SIG */ -static int module_sig_check(struct load_info *info) +static int module_sig_check(struct load_info *info, int flags) { return 0; } @@ -3498,7 +3503,7 @@ static int load_module(struct load_info *info, const char __user *uargs, long err; char *after_dashes; - err = module_sig_check(info); + err = module_sig_check(info, flags); if (err) goto free_copy; diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 6a7265de8..86a87de7f 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -826,6 +826,20 @@ int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev) } EXPORT_SYMBOL(bdi_register_dev); +int bdi_register_owner(struct backing_dev_info *bdi, struct device *owner) +{ + int rc; + + rc = bdi_register(bdi, NULL, "%u:%u", MAJOR(owner->devt), + MINOR(owner->devt)); + if (rc) + return rc; + bdi->owner = owner; + get_device(owner); + return 0; +} +EXPORT_SYMBOL(bdi_register_owner); + /* * Remove bdi from bdi_list, and ensure that it is no longer visible */ @@ -850,6 +864,11 @@ void bdi_unregister(struct backing_dev_info *bdi) device_unregister(bdi->dev); bdi->dev = NULL; } + + if (bdi->owner) { + put_device(bdi->owner); + bdi->owner = NULL; + } } void bdi_exit(struct backing_dev_info *bdi) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index addfe4acc..d9ec1a5b3 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2214,6 +2214,10 @@ static unsigned long set_max_huge_pages(struct hstate *h, unsigned long count, * and reducing the surplus. */ spin_unlock(&hugetlb_lock); + + /* yield cpu to avoid soft lockup */ + cond_resched(); + if (hstate_is_gigantic(h)) ret = alloc_fresh_gigantic_page(h, nodes_allowed); else diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 388ee8b59..1842141ba 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -927,7 +927,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u32 __user *) optval)) { + if (get_user(opt, (u16 __user *) optval)) { err = -EFAULT; break; } diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c index 1325776da..bd007a9fd 100644 --- a/net/netlabel/netlabel_kapi.c +++ b/net/netlabel/netlabel_kapi.c @@ -824,7 +824,11 @@ socket_setattr_return: */ void netlbl_sock_delattr(struct sock *sk) { - cipso_v4_sock_delattr(sk); + switch (sk->sk_family) { + case AF_INET: + cipso_v4_sock_delattr(sk); + break; + } } /** @@ -987,7 +991,11 @@ req_setattr_return: */ void netlbl_req_delattr(struct request_sock *req) { - cipso_v4_req_delattr(req); + switch (req->rsk_ops->family) { + case AF_INET: + cipso_v4_req_delattr(req); + break; + } } /** diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c index e16759279..42396a744 100644 --- a/scripts/recordmcount.c +++ b/scripts/recordmcount.c @@ -33,10 +33,17 @@ #include <string.h> #include <unistd.h> +/* + * glibc synced up and added the metag number but didn't add the relocations. + * Work around this in a crude manner for now. + */ #ifndef EM_METAG -/* Remove this when these make it to the standard system elf.h. */ #define EM_METAG 174 +#endif +#ifndef R_METAG_ADDR32 #define R_METAG_ADDR32 2 +#endif +#ifndef R_METAG_NONE #define R_METAG_NONE 3 #endif diff --git a/sound/hda/array.c b/sound/hda/array.c index 516795baa..5dfa610e4 100644 --- a/sound/hda/array.c +++ b/sound/hda/array.c @@ -21,13 +21,15 @@ void *snd_array_new(struct snd_array *array) return NULL; if (array->used >= array->alloced) { int num = array->alloced + array->alloc_align; + int oldsize = array->alloced * array->elem_size; int size = (num + 1) * array->elem_size; void *nlist; if (snd_BUG_ON(num >= 4096)) return NULL; - nlist = krealloc(array->list, size, GFP_KERNEL | __GFP_ZERO); + nlist = krealloc(array->list, size, GFP_KERNEL); if (!nlist) return NULL; + memset(nlist + oldsize, 0, size - oldsize); array->list = nlist; array->alloced = num; } diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 6f8ea1332..89dacf9b4 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2265,6 +2265,8 @@ static const struct pci_device_id azx_ids[] = { { PCI_DEVICE(0x1022, 0x780d), .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB }, /* ATI HDMI */ + { PCI_DEVICE(0x1002, 0x0002), + .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS }, { PCI_DEVICE(0x1002, 0x1308), .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS }, { PCI_DEVICE(0x1002, 0x157a), diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index abcb5a6a1..f25479ba3 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -4674,6 +4674,22 @@ static void alc290_fixup_mono_speakers(struct hda_codec *codec, } } +static void alc298_fixup_speaker_volume(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ + if (action == HDA_FIXUP_ACT_PRE_PROBE) { + /* The speaker is routed to the Node 0x06 by a mistake, as a result + we can't adjust the speaker's volume since this node does not has + Amp-out capability. we change the speaker's route to: + Node 0x02 (Audio Output) -> Node 0x0c (Audio Mixer) -> Node 0x17 ( + Pin Complex), since Node 0x02 has Amp-out caps, we can adjust + speaker's volume now. */ + + hda_nid_t conn1[1] = { 0x0c }; + snd_hda_override_conn_list(codec, 0x17, 1, conn1); + } +} + /* Hook to update amp GPIO4 for automute */ static void alc280_hp_gpio4_automute_hook(struct hda_codec *codec, struct hda_jack_callback *jack) @@ -4823,6 +4839,7 @@ enum { ALC280_FIXUP_HP_HEADSET_MIC, ALC221_FIXUP_HP_FRONT_MIC, ALC292_FIXUP_TPT460, + ALC298_FIXUP_SPK_VOLUME, }; static const struct hda_fixup alc269_fixups[] = { @@ -5478,6 +5495,12 @@ static const struct hda_fixup alc269_fixups[] = { .chained = true, .chain_id = ALC293_FIXUP_LENOVO_SPK_NOISE, }, + [ALC298_FIXUP_SPK_VOLUME] = { + .type = HDA_FIXUP_FUNC, + .v.func = alc298_fixup_speaker_volume, + .chained = true, + .chain_id = ALC298_FIXUP_DELL1_MIC_NO_PRESENCE, + }, }; static const struct snd_pci_quirk alc269_fixup_tbl[] = { @@ -5524,6 +5547,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x1028, 0x0704, "Dell XPS 13 9350", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE), SND_PCI_QUIRK(0x1028, 0x0725, "Dell Inspiron 3162", ALC255_FIXUP_DELL_SPK_NOISE), SND_PCI_QUIRK(0x1028, 0x075b, "Dell XPS 13 9360", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE), + SND_PCI_QUIRK(0x1028, 0x075d, "Dell AIO", ALC298_FIXUP_SPK_VOLUME), SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2), @@ -5799,6 +5823,10 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = { {0x1b, 0x01014020}, {0x21, 0x0221103f}), SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x14, 0x90170130}, + {0x1b, 0x02011020}, + {0x21, 0x0221103f}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, {0x14, 0x90170150}, {0x1b, 0x02011020}, {0x21, 0x0221105f}), diff --git a/tools/objtool/.gitignore b/tools/objtool/.gitignore index a0b3128bb..d3102c865 100644 --- a/tools/objtool/.gitignore +++ b/tools/objtool/.gitignore @@ -1,2 +1,3 @@ arch/x86/insn/inat-tables.c objtool +fixdep diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 48bd520fc..dd25346ec 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -148,6 +148,7 @@ int vcpu_load(struct kvm_vcpu *vcpu) put_cpu(); return 0; } +EXPORT_SYMBOL_GPL(vcpu_load); void vcpu_put(struct kvm_vcpu *vcpu) { @@ -157,6 +158,7 @@ void vcpu_put(struct kvm_vcpu *vcpu) preempt_enable(); mutex_unlock(&vcpu->mutex); } +EXPORT_SYMBOL_GPL(vcpu_put); static void ack_flush(void *_completed) { |