diff options
71 files changed, 581 insertions, 326 deletions
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index bf4f4b7e11b..6d94e0696f8 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt @@ -134,9 +134,15 @@ ro Mount filesystem read only. Note that ext4 will mount options "ro,noload" can be used to prevent writes to the filesystem. +journal_checksum Enable checksumming of the journal transactions. + This will allow the recovery code in e2fsck and the + kernel to detect corruption in the kernel. It is a + compatible change and will be ignored by older kernels. + journal_async_commit Commit block can be written to disk without waiting for descriptor blocks. If enabled older kernels cannot - mount the device. + mount the device. This will enable 'journal_checksum' + internally. journal=update Update the ext4 file system's journal to the current format. diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index 1c8eb4518ce..fd9a2f67edf 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -522,7 +522,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. pcm_devs - Number of PCM devices assigned to each card (default = 1, up to 4) pcm_substreams - Number of PCM substreams assigned to each PCM - (default = 8, up to 16) + (default = 8, up to 128) hrtimer - Use hrtimer (=1, default) or system timer (=0) fake_buffer - Fake buffer allocations (default = 1) diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt index 957b22fde2d..8179692fbb9 100644 --- a/Documentation/trace/ftrace.txt +++ b/Documentation/trace/ftrace.txt @@ -1231,6 +1231,7 @@ something like this simple program: #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> +#include <string.h> #define _STR(x) #x #define STR(x) _STR(x) @@ -1265,6 +1266,7 @@ const char *find_debugfs(void) return NULL; } + strcat(debugfs, "/tracing/"); debugfs_found = 1; return debugfs; diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index fd03fb63a33..3d0cdd21b88 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -414,9 +414,14 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page static inline void __flush_icache_all(void) { +#ifdef CONFIG_ARM_ERRATA_411920 + extern void v6_icache_inval_all(void); + v6_icache_inval_all(); +#else asm("mcr p15, 0, %0, c7, c5, 0 @ invalidate I-cache\n" : : "r" (0)); +#endif } #define ARCH_HAS_FLUSH_ANON_PAGE diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 1423a341978..2a573d4fea2 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -1,7 +1,7 @@ /* * linux/arch/arm/kernel/signal.c * - * Copyright (C) 1995-2002 Russell King + * Copyright (C) 1995-2009 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -29,6 +29,7 @@ */ #define SWI_SYS_SIGRETURN (0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE)) #define SWI_SYS_RT_SIGRETURN (0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE)) +#define SWI_SYS_RESTART (0xef000000|__NR_restart_syscall|__NR_OABI_SYSCALL_BASE) /* * With EABI, the syscall number has to be loaded into r7. @@ -49,6 +50,18 @@ const unsigned long sigreturn_codes[7] = { }; /* + * Either we support OABI only, or we have EABI with the OABI + * compat layer enabled. In the later case we don't know if + * user space is EABI or not, and if not we must not clobber r7. + * Always using the OABI syscall solves that issue and works for + * all those cases. + */ +const unsigned long syscall_restart_code[2] = { + SWI_SYS_RESTART, /* swi __NR_restart_syscall */ + 0xe49df004, /* ldr pc, [sp], #4 */ +}; + +/* * atomically swap in the new signal mask, and wait for a signal. */ asmlinkage int sys_sigsuspend(int restart, unsigned long oldmask, old_sigset_t mask) @@ -645,32 +658,12 @@ static void do_signal(struct pt_regs *regs, int syscall) regs->ARM_pc -= 4; #else u32 __user *usp; - u32 swival = __NR_restart_syscall; - regs->ARM_sp -= 12; + regs->ARM_sp -= 4; usp = (u32 __user *)regs->ARM_sp; - /* - * Either we supports OABI only, or we have - * EABI with the OABI compat layer enabled. - * In the later case we don't know if user - * space is EABI or not, and if not we must - * not clobber r7. Always using the OABI - * syscall solves that issue and works for - * all those cases. - */ - swival = swival - __NR_SYSCALL_BASE + __NR_OABI_SYSCALL_BASE; - - put_user(regs->ARM_pc, &usp[0]); - /* swi __NR_restart_syscall */ - put_user(0xef000000 | swival, &usp[1]); - /* ldr pc, [sp], #12 */ - put_user(0xe49df00c, &usp[2]); - - flush_icache_range((unsigned long)usp, - (unsigned long)(usp + 3)); - - regs->ARM_pc = regs->ARM_sp + 4; + put_user(regs->ARM_pc, usp); + regs->ARM_pc = KERN_RESTART_CODE; #endif } } diff --git a/arch/arm/kernel/signal.h b/arch/arm/kernel/signal.h index 27beece1550..6fcfe8398aa 100644 --- a/arch/arm/kernel/signal.h +++ b/arch/arm/kernel/signal.h @@ -1,12 +1,14 @@ /* * linux/arch/arm/kernel/signal.h * - * Copyright (C) 2005 Russell King. + * Copyright (C) 2005-2009 Russell King. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #define KERN_SIGRETURN_CODE (CONFIG_VECTORS_BASE + 0x00000500) +#define KERN_RESTART_CODE (KERN_SIGRETURN_CODE + sizeof(sigreturn_codes)) extern const unsigned long sigreturn_codes[7]; +extern const unsigned long syscall_restart_code[2]; diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index f838f36eb70..95718a6b50a 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -1,7 +1,7 @@ /* * linux/arch/arm/kernel/traps.c * - * Copyright (C) 1995-2002 Russell King + * Copyright (C) 1995-2009 Russell King * Fragments that appear the same as linux/arch/i386/kernel/traps.c (C) Linus Torvalds * * This program is free software; you can redistribute it and/or modify @@ -751,6 +751,8 @@ void __init early_trap_init(void) */ memcpy((void *)KERN_SIGRETURN_CODE, sigreturn_codes, sizeof(sigreturn_codes)); + memcpy((void *)KERN_RESTART_CODE, syscall_restart_code, + sizeof(syscall_restart_code)); flush_icache_range(vectors, vectors + PAGE_SIZE); modify_domain(DOMAIN_USER, DOMAIN_CLIENT); diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c index 39baf1128bf..786ac2b6914 100644 --- a/arch/arm/kernel/unwind.c +++ b/arch/arm/kernel/unwind.c @@ -26,6 +26,15 @@ * http://infocenter.arm.com/help/topic/com.arm.doc.subset.swdev.abi/index.html */ +#if !defined (__ARM_EABI__) +#warning Your compiler does not have EABI support. +#warning ARM unwind is known to compile only with EABI compilers. +#warning Change compiler or disable ARM_UNWIND option. +#elif (__GNUC__ == 4 && __GNUC_MINOR__ <= 2) +#warning Your compiler is too buggy; it is known to not compile ARM unwind support. +#warning Change compiler or disable ARM_UNWIND option. +#endif + #include <linux/kernel.h> #include <linux/init.h> #include <linux/module.h> diff --git a/arch/arm/mach-integrator/include/mach/memory.h b/arch/arm/mach-integrator/include/mach/memory.h index 2b2e7a11072..4891828454f 100644 --- a/arch/arm/mach-integrator/include/mach/memory.h +++ b/arch/arm/mach-integrator/include/mach/memory.h @@ -28,5 +28,6 @@ #define BUS_OFFSET UL(0x80000000) #define __virt_to_bus(x) ((x) - PAGE_OFFSET + BUS_OFFSET) #define __bus_to_virt(x) ((x) - BUS_OFFSET + PAGE_OFFSET) +#define __pfn_to_bus(x) (((x) << PAGE_SHIFT) + BUS_OFFSET) #endif diff --git a/arch/arm/mach-realview/core.h b/arch/arm/mach-realview/core.h index 46cd6acb4d4..699671fa6e0 100644 --- a/arch/arm/mach-realview/core.h +++ b/arch/arm/mach-realview/core.h @@ -61,5 +61,5 @@ extern void realview_timer_init(unsigned int timer_irq); extern int realview_flash_register(struct resource *res, u32 num); extern int realview_eth_register(const char *name, struct resource *res); extern int realview_usb_register(struct resource *res); - +extern void (*realview_reset)(char); #endif diff --git a/arch/arm/mach-realview/include/mach/board-pb1176.h b/arch/arm/mach-realview/include/mach/board-pb1176.h index 98f8e7eeacc..34b80b7d40b 100644 --- a/arch/arm/mach-realview/include/mach/board-pb1176.h +++ b/arch/arm/mach-realview/include/mach/board-pb1176.h @@ -73,4 +73,9 @@ #define REALVIEW_PB1176_GIC_DIST_BASE 0x10041000 /* GIC distributor, on FPGA */ #define REALVIEW_PB1176_L220_BASE 0x10110000 /* L220 registers */ +/* + * Control register SYS_RESETCTL is set to 1 to force a soft reset + */ +#define REALVIEW_PB1176_SYS_LOCKVAL_RSTCTL 0x0100 + #endif /* __ASM_ARCH_BOARD_PB1176_H */ diff --git a/arch/arm/mach-realview/include/mach/board-pb11mp.h b/arch/arm/mach-realview/include/mach/board-pb11mp.h index f0d68e0fea0..7abf918b77e 100644 --- a/arch/arm/mach-realview/include/mach/board-pb11mp.h +++ b/arch/arm/mach-realview/include/mach/board-pb11mp.h @@ -81,4 +81,16 @@ #define REALVIEW_TC11MP_GIC_DIST_BASE 0x1F001000 /* Test chip interrupt controller distributor */ #define REALVIEW_TC11MP_L220_BASE 0x1F002000 /* L220 registers */ + /* + * Values for REALVIEW_SYS_RESET_CTRL + */ +#define REALVIEW_PB11MP_SYS_CTRL_RESET_CONFIGCLR 0x01 +#define REALVIEW_PB11MP_SYS_CTRL_RESET_CONFIGINIT 0x02 +#define REALVIEW_PB11MP_SYS_CTRL_RESET_DLLRESET 0x03 +#define REALVIEW_PB11MP_SYS_CTRL_RESET_PLLRESET 0x04 +#define REALVIEW_PB11MP_SYS_CTRL_RESET_POR 0x05 +#define REALVIEW_PB11MP_SYS_CTRL_RESET_DoC 0x06 + +#define REALVIEW_PB11MP_SYS_CTRL_LED (1 << 0) + #endif /* __ASM_ARCH_BOARD_PB11MP_H */ diff --git a/arch/arm/mach-realview/include/mach/platform.h b/arch/arm/mach-realview/include/mach/platform.h index c8f50835fed..4f46bf71e75 100644 --- a/arch/arm/mach-realview/include/mach/platform.h +++ b/arch/arm/mach-realview/include/mach/platform.h @@ -119,19 +119,6 @@ #define REALVIEW_SYS_TEST_OSC3 (REALVIEW_SYS_BASE + REALVIEW_SYS_TEST_OSC3_OFFSET) #define REALVIEW_SYS_TEST_OSC4 (REALVIEW_SYS_BASE + REALVIEW_SYS_TEST_OSC4_OFFSET) -/* - * Values for REALVIEW_SYS_RESET_CTRL - */ -#define REALVIEW_SYS_CTRL_RESET_CONFIGCLR 0x01 -#define REALVIEW_SYS_CTRL_RESET_CONFIGINIT 0x02 -#define REALVIEW_SYS_CTRL_RESET_DLLRESET 0x03 -#define REALVIEW_SYS_CTRL_RESET_PLLRESET 0x04 -#define REALVIEW_SYS_CTRL_RESET_POR 0x05 -#define REALVIEW_SYS_CTRL_RESET_DoC 0x06 - -#define REALVIEW_SYS_CTRL_LED (1 << 0) - - /* ------------------------------------------------------------------------ * RealView control registers * ------------------------------------------------------------------------ @@ -153,7 +140,7 @@ * SYS_CLD, SYS_BOOTCS */ #define REALVIEW_SYS_LOCK_LOCKED (1 << 16) -#define REALVIEW_SYS_LOCKVAL_MASK 0xFFFF /* write 0xA05F to enable write access */ +#define REALVIEW_SYS_LOCKVAL_MASK 0xA05F /* Enable write access */ /* * REALVIEW_SYS_FLASH diff --git a/arch/arm/mach-realview/include/mach/system.h b/arch/arm/mach-realview/include/mach/system.h index 1a15a441e02..a30f2e3ec17 100644 --- a/arch/arm/mach-realview/include/mach/system.h +++ b/arch/arm/mach-realview/include/mach/system.h @@ -25,6 +25,8 @@ #include <mach/hardware.h> #include <mach/platform.h> +void (*realview_reset)(char mode); + static inline void arch_idle(void) { /* @@ -36,16 +38,12 @@ static inline void arch_idle(void) static inline void arch_reset(char mode, const char *cmd) { - void __iomem *hdr_ctrl = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_RESETCTL_OFFSET; - unsigned int val; - /* * To reset, we hit the on-board reset register * in the system FPGA */ - val = __raw_readl(hdr_ctrl); - val |= REALVIEW_SYS_CTRL_RESET_CONFIGCLR; - __raw_writel(val, hdr_ctrl); + if (realview_reset) + realview_reset(mode); } #endif diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c index 2817fe09931..a6ba147692c 100644 --- a/arch/arm/mach-realview/realview_pb1176.c +++ b/arch/arm/mach-realview/realview_pb1176.c @@ -290,6 +290,16 @@ static struct sys_timer realview_pb1176_timer = { .init = realview_pb1176_timer_init, }; +static void realview_pb1176_reset(char mode) +{ + void __iomem *hdr_ctrl = __io_address(REALVIEW_SYS_BASE) + + REALVIEW_SYS_RESETCTL_OFFSET; + void __iomem *rst_hdr_ctrl = __io_address(REALVIEW_SYS_BASE) + + REALVIEW_SYS_LOCK_OFFSET; + __raw_writel(REALVIEW_SYS_LOCKVAL_MASK, rst_hdr_ctrl); + __raw_writel(REALVIEW_PB1176_SYS_LOCKVAL_RSTCTL, hdr_ctrl); +} + static void __init realview_pb1176_init(void) { int i; @@ -313,6 +323,7 @@ static void __init realview_pb1176_init(void) #ifdef CONFIG_LEDS leds_event = realview_leds_event; #endif + realview_reset = realview_pb1176_reset; } MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176") diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c index 94680fcf726..070d284ce96 100644 --- a/arch/arm/mach-realview/realview_pb11mp.c +++ b/arch/arm/mach-realview/realview_pb11mp.c @@ -299,6 +299,21 @@ static struct sys_timer realview_pb11mp_timer = { .init = realview_pb11mp_timer_init, }; +static void realview_pb11mp_reset(char mode) +{ + void __iomem *hdr_ctrl = __io_address(REALVIEW_SYS_BASE) + + REALVIEW_SYS_RESETCTL_OFFSET; + unsigned int val; + + /* + * To reset, we hit the on-board reset register + * in the system FPGA + */ + val = __raw_readl(hdr_ctrl); + val |= REALVIEW_PB11MP_SYS_CTRL_RESET_CONFIGCLR; + __raw_writel(val, hdr_ctrl); +} + static void __init realview_pb11mp_init(void) { int i; @@ -324,6 +339,7 @@ static void __init realview_pb11mp_init(void) #ifdef CONFIG_LEDS leds_event = realview_leds_event; #endif + realview_reset = realview_pb11mp_reset; } MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore") diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c index 6bda76a4319..a9e22e31eaa 100644 --- a/arch/arm/mm/context.c +++ b/arch/arm/mm/context.c @@ -50,10 +50,7 @@ void __new_context(struct mm_struct *mm) isb(); flush_tlb_all(); if (icache_is_vivt_asid_tagged()) { - asm("mcr p15, 0, %0, c7, c5, 0 @ invalidate I-cache\n" - "mcr p15, 0, %0, c7, c5, 6 @ flush BTAC/BTB\n" - : - : "r" (0)); + __flush_icache_all(); dsb(); } } diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index b30925fcbcd..b9590a7085c 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -205,7 +205,7 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, order = get_order(size); - if (mask != 0xffffffff) + if (mask < 0xffffffffULL) gfp |= GFP_DMA; page = alloc_pages(gfp, order); @@ -289,7 +289,7 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, if (!mask) goto error; - if (mask != 0xffffffff) + if (mask < 0xffffffffULL) gfp |= GFP_DMA; virt = kmalloc(size, gfp); if (!virt) diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index b27942909b2..7f294f307c8 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -18,10 +18,6 @@ #include "mm.h" -#ifdef CONFIG_ARM_ERRATA_411920 -extern void v6_icache_inval_all(void); -#endif - #ifdef CONFIG_CPU_CACHE_VIPT #define ALIAS_FLUSH_START 0xffff4000 @@ -35,16 +31,11 @@ static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr) flush_tlb_kernel_page(to); asm( "mcrr p15, 0, %1, %0, c14\n" - " mcr p15, 0, %2, c7, c10, 4\n" -#ifndef CONFIG_ARM_ERRATA_411920 - " mcr p15, 0, %2, c7, c5, 0\n" -#endif + " mcr p15, 0, %2, c7, c10, 4" : : "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES), "r" (zero) : "cc"); -#ifdef CONFIG_ARM_ERRATA_411920 - v6_icache_inval_all(); -#endif + __flush_icache_all(); } void flush_cache_mm(struct mm_struct *mm) @@ -57,16 +48,11 @@ void flush_cache_mm(struct mm_struct *mm) if (cache_is_vipt_aliasing()) { asm( "mcr p15, 0, %0, c7, c14, 0\n" - " mcr p15, 0, %0, c7, c10, 4\n" -#ifndef CONFIG_ARM_ERRATA_411920 - " mcr p15, 0, %0, c7, c5, 0\n" -#endif + " mcr p15, 0, %0, c7, c10, 4" : : "r" (0) : "cc"); -#ifdef CONFIG_ARM_ERRATA_411920 - v6_icache_inval_all(); -#endif + __flush_icache_all(); } } @@ -81,16 +67,11 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned if (cache_is_vipt_aliasing()) { asm( "mcr p15, 0, %0, c7, c14, 0\n" - " mcr p15, 0, %0, c7, c10, 4\n" -#ifndef CONFIG_ARM_ERRATA_411920 - " mcr p15, 0, %0, c7, c5, 0\n" -#endif + " mcr p15, 0, %0, c7, c10, 4" : : "r" (0) : "cc"); -#ifdef CONFIG_ARM_ERRATA_411920 - v6_icache_inval_all(); -#endif + __flush_icache_all(); } } diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 40940d7ce4f..52c40d15567 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -273,7 +273,6 @@ static void __init bootmem_init_node(int node, struct meminfo *mi, struct membank *bank = &mi->bank[i]; if (!bank->highmem) free_bootmem_node(pgdat, bank_phys_start(bank), bank_phys_size(bank)); - memory_present(node, bank_pfn_start(bank), bank_pfn_end(bank)); } /* @@ -370,6 +369,19 @@ int pfn_valid(unsigned long pfn) return 0; } EXPORT_SYMBOL(pfn_valid); + +static void arm_memory_present(struct meminfo *mi, int node) +{ +} +#else +static void arm_memory_present(struct meminfo *mi, int node) +{ + int i; + for_each_nodebank(i, mi, node) { + struct membank *bank = &mi->bank[i]; + memory_present(node, bank_pfn_start(bank), bank_pfn_end(bank)); + } +} #endif static int __init meminfo_cmp(const void *_a, const void *_b) @@ -427,6 +439,12 @@ void __init bootmem_init(void) */ if (node == initrd_node) bootmem_reserve_initrd(node); + + /* + * Sparsemem tries to allocate bootmem in memory_present(), + * so must be done after the fixed reservations + */ + arm_memory_present(mi, node); } /* diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 02243eeccf5..ea67be0223a 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -117,6 +117,13 @@ static void __init early_cachepolicy(char **p) } if (i == ARRAY_SIZE(cache_policies)) printk(KERN_ERR "ERROR: unknown or unsupported cache policy\n"); + /* + * This restriction is partly to do with the way we boot; it is + * unpredictable to have memory mapped using two different sets of + * memory attributes (shared, type, and cache attribs). We can not + * change these attributes once the initial assembly has setup the + * page tables. + */ if (cpu_architecture() >= CPU_ARCH_ARMv6) { printk(KERN_WARNING "Only cachepolicy=writeback supported on ARMv6 and later\n"); cachepolicy = CPOLICY_WRITEBACK; diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index 194737d60a2..70f75d2e3ea 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -32,8 +32,10 @@ #ifndef CONFIG_SMP #define TTB_FLAGS TTB_RGN_WBWA +#define PMD_FLAGS PMD_SECT_WB #else #define TTB_FLAGS TTB_RGN_WBWA|TTB_S +#define PMD_FLAGS PMD_SECT_WBWA|PMD_SECT_S #endif ENTRY(cpu_v6_proc_init) @@ -222,10 +224,9 @@ __v6_proc_info: .long 0x0007b000 .long 0x0007f000 .long PMD_TYPE_SECT | \ - PMD_SECT_BUFFERABLE | \ - PMD_SECT_CACHEABLE | \ PMD_SECT_AP_WRITE | \ - PMD_SECT_AP_READ + PMD_SECT_AP_READ | \ + PMD_FLAGS .long PMD_TYPE_SECT | \ PMD_SECT_XN | \ PMD_SECT_AP_WRITE | \ diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index 23ebcf6eab9..eeeed01ee44 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -33,9 +33,11 @@ #ifndef CONFIG_SMP /* PTWs cacheable, inner WB not shareable, outer WB not shareable */ #define TTB_FLAGS TTB_IRGN_WB|TTB_RGN_OC_WB +#define PMD_FLAGS PMD_SECT_WB #else /* PTWs cacheable, inner WBWA shareable, outer WBWA not shareable */ #define TTB_FLAGS TTB_IRGN_WBWA|TTB_S|TTB_NOS|TTB_RGN_OC_WBWA +#define PMD_FLAGS PMD_SECT_WBWA|PMD_SECT_S #endif ENTRY(cpu_v7_proc_init) @@ -326,10 +328,9 @@ __v7_proc_info: .long 0x000f0000 @ Required ID value .long 0x000f0000 @ Mask for ID .long PMD_TYPE_SECT | \ - PMD_SECT_BUFFERABLE | \ - PMD_SECT_CACHEABLE | \ PMD_SECT_AP_WRITE | \ - PMD_SECT_AP_READ + PMD_SECT_AP_READ | \ + PMD_FLAGS .long PMD_TYPE_SECT | \ PMD_SECT_XN | \ PMD_SECT_AP_WRITE | \ diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h index 30bb930e111..239ecdc9516 100644 --- a/arch/ia64/include/asm/spinlock.h +++ b/arch/ia64/include/asm/spinlock.h @@ -25,61 +25,82 @@ * by atomically noting the tail and incrementing it by one (thus adding * ourself to the queue and noting our position), then waiting until the head * becomes equal to the the initial value of the tail. + * The pad bits in the middle are used to prevent the next_ticket number + * overflowing into the now_serving number. * - * 63 32 31 0 + * 31 17 16 15 14 0 * +----------------------------------------------------+ - * | next_ticket_number | now_serving | + * | now_serving | padding | next_ticket | * +----------------------------------------------------+ */ -#define TICKET_SHIFT 32 +#define TICKET_SHIFT 17 +#define TICKET_BITS 15 +#define TICKET_MASK ((1 << TICKET_BITS) - 1) static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock) { - int *p = (int *)&lock->lock, turn, now_serving; + int *p = (int *)&lock->lock, ticket, serve; - now_serving = *p; - turn = ia64_fetchadd(1, p+1, acq); + ticket = ia64_fetchadd(1, p, acq); - if (turn == now_serving) + if (!(((ticket >> TICKET_SHIFT) ^ ticket) & TICKET_MASK)) return; - do { + ia64_invala(); + + for (;;) { + asm volatile ("ld4.c.nc %0=[%1]" : "=r"(serve) : "r"(p) : "memory"); + + if (!(((serve >> TICKET_SHIFT) ^ ticket) & TICKET_MASK)) + return; cpu_relax(); - } while (ACCESS_ONCE(*p) != turn); + } } static __always_inline int __ticket_spin_trylock(raw_spinlock_t *lock) { - long tmp = ACCESS_ONCE(lock->lock), try; - - if (!(((tmp >> TICKET_SHIFT) ^ tmp) & ((1L << TICKET_SHIFT) - 1))) { - try = tmp + (1L << TICKET_SHIFT); + int tmp = ACCESS_ONCE(lock->lock); - return ia64_cmpxchg(acq, &lock->lock, tmp, try, sizeof (tmp)) == tmp; - } + if (!(((tmp >> TICKET_SHIFT) ^ tmp) & TICKET_MASK)) + return ia64_cmpxchg(acq, &lock->lock, tmp, tmp + 1, sizeof (tmp)) == tmp; return 0; } static __always_inline void __ticket_spin_unlock(raw_spinlock_t *lock) { - int *p = (int *)&lock->lock; + unsigned short *p = (unsigned short *)&lock->lock + 1, tmp; - (void)ia64_fetchadd(1, p, rel); + asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p)); + ACCESS_ONCE(*p) = (tmp + 2) & ~1; +} + +static __always_inline void __ticket_spin_unlock_wait(raw_spinlock_t *lock) +{ + int *p = (int *)&lock->lock, ticket; + + ia64_invala(); + + for (;;) { + asm volatile ("ld4.c.nc %0=[%1]" : "=r"(ticket) : "r"(p) : "memory"); + if (!(((ticket >> TICKET_SHIFT) ^ ticket) & TICKET_MASK)) + return; + cpu_relax(); + } } static inline int __ticket_spin_is_locked(raw_spinlock_t *lock) { long tmp = ACCESS_ONCE(lock->lock); - return !!(((tmp >> TICKET_SHIFT) ^ tmp) & ((1L << TICKET_SHIFT) - 1)); + return !!(((tmp >> TICKET_SHIFT) ^ tmp) & TICKET_MASK); } static inline int __ticket_spin_is_contended(raw_spinlock_t *lock) { long tmp = ACCESS_ONCE(lock->lock); - return (((tmp >> TICKET_SHIFT) - tmp) & ((1L << TICKET_SHIFT) - 1)) > 1; + return ((tmp - (tmp >> TICKET_SHIFT)) & TICKET_MASK) > 1; } static inline int __raw_spin_is_locked(raw_spinlock_t *lock) @@ -116,8 +137,7 @@ static __always_inline void __raw_spin_lock_flags(raw_spinlock_t *lock, static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock) { - while (__raw_spin_is_locked(lock)) - cpu_relax(); + __ticket_spin_unlock_wait(lock); } #define __raw_read_can_lock(rw) (*(volatile int *)(rw) >= 0) diff --git a/arch/ia64/include/asm/spinlock_types.h b/arch/ia64/include/asm/spinlock_types.h index b61d136d9bc..474e46f1ab4 100644 --- a/arch/ia64/include/asm/spinlock_types.h +++ b/arch/ia64/include/asm/spinlock_types.h @@ -6,7 +6,7 @@ #endif typedef struct { - volatile unsigned long lock; + volatile unsigned int lock; } raw_spinlock_t; #define __RAW_SPIN_LOCK_UNLOCKED { 0 } diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index d2877a7bfe2..496ac7a9948 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -887,6 +887,60 @@ ia64_mca_modify_comm(const struct task_struct *previous_current) memcpy(current->comm, comm, sizeof(current->comm)); } +static void +finish_pt_regs(struct pt_regs *regs, const pal_min_state_area_t *ms, + unsigned long *nat) +{ + const u64 *bank; + + /* If ipsr.ic then use pmsa_{iip,ipsr,ifs}, else use + * pmsa_{xip,xpsr,xfs} + */ + if (ia64_psr(regs)->ic) { + regs->cr_iip = ms->pmsa_iip; + regs->cr_ipsr = ms->pmsa_ipsr; + regs->cr_ifs = ms->pmsa_ifs; + } else { + regs->cr_iip = ms->pmsa_xip; + regs->cr_ipsr = ms->pmsa_xpsr; + regs->cr_ifs = ms->pmsa_xfs; + } + regs->pr = ms->pmsa_pr; + regs->b0 = ms->pmsa_br0; + regs->ar_rsc = ms->pmsa_rsc; + copy_reg(&ms->pmsa_gr[1-1], ms->pmsa_nat_bits, ®s->r1, nat); + copy_reg(&ms->pmsa_gr[2-1], ms->pmsa_nat_bits, ®s->r2, nat); + copy_reg(&ms->pmsa_gr[3-1], ms->pmsa_nat_bits, ®s->r3, nat); + copy_reg(&ms->pmsa_gr[8-1], ms->pmsa_nat_bits, ®s->r8, nat); + copy_reg(&ms->pmsa_gr[9-1], ms->pmsa_nat_bits, ®s->r9, nat); + copy_reg(&ms->pmsa_gr[10-1], ms->pmsa_nat_bits, ®s->r10, nat); + copy_reg(&ms->pmsa_gr[11-1], ms->pmsa_nat_bits, ®s->r11, nat); + copy_reg(&ms->pmsa_gr[12-1], ms->pmsa_nat_bits, ®s->r12, nat); + copy_reg(&ms->pmsa_gr[13-1], ms->pmsa_nat_bits, ®s->r13, nat); + copy_reg(&ms->pmsa_gr[14-1], ms->pmsa_nat_bits, ®s->r14, nat); + copy_reg(&ms->pmsa_gr[15-1], ms->pmsa_nat_bits, ®s->r15, nat); + if (ia64_psr(regs)->bn) + bank = ms->pmsa_bank1_gr; + else + bank = ms->pmsa_bank0_gr; + copy_reg(&bank[16-16], ms->pmsa_nat_bits, ®s->r16, nat); + copy_reg(&bank[17-16], ms->pmsa_nat_bits, ®s->r17, nat); + copy_reg(&bank[18-16], ms->pmsa_nat_bits, ®s->r18, nat); + copy_reg(&bank[19-16], ms->pmsa_nat_bits, ®s->r19, nat); + copy_reg(&bank[20-16], ms->pmsa_nat_bits, ®s->r20, nat); + copy_reg(&bank[21-16], ms->pmsa_nat_bits, ®s->r21, nat); + copy_reg(&bank[22-16], ms->pmsa_nat_bits, ®s->r22, nat); + copy_reg(&bank[23-16], ms->pmsa_nat_bits, ®s->r23, nat); + copy_reg(&bank[24-16], ms->pmsa_nat_bits, ®s->r24, nat); + copy_reg(&bank[25-16], ms->pmsa_nat_bits, ®s->r25, nat); + copy_reg(&bank[26-16], ms->pmsa_nat_bits, ®s->r26, nat); + copy_reg(&bank[27-16], ms->pmsa_nat_bits, ®s->r27, nat); + copy_reg(&bank[28-16], ms->pmsa_nat_bits, ®s->r28, nat); + copy_reg(&bank[29-16], ms->pmsa_nat_bits, ®s->r29, nat); + copy_reg(&bank[30-16], ms->pmsa_nat_bits, ®s->r30, nat); + copy_reg(&bank[31-16], ms->pmsa_nat_bits, ®s->r31, nat); +} + /* On entry to this routine, we are running on the per cpu stack, see * mca_asm.h. The original stack has not been touched by this event. Some of * the original stack's registers will be in the RBS on this stack. This stack @@ -921,7 +975,6 @@ ia64_mca_modify_original_stack(struct pt_regs *regs, u64 r12 = ms->pmsa_gr[12-1], r13 = ms->pmsa_gr[13-1]; u64 ar_bspstore = regs->ar_bspstore; u64 ar_bsp = regs->ar_bspstore + (loadrs >> 16); - const u64 *bank; const char *msg; int cpu = smp_processor_id(); @@ -1024,54 +1077,9 @@ ia64_mca_modify_original_stack(struct pt_regs *regs, p = (char *)r12 - sizeof(*regs); old_regs = (struct pt_regs *)p; memcpy(old_regs, regs, sizeof(*regs)); - /* If ipsr.ic then use pmsa_{iip,ipsr,ifs}, else use - * pmsa_{xip,xpsr,xfs} - */ - if (ia64_psr(regs)->ic) { - old_regs->cr_iip = ms->pmsa_iip; - old_regs->cr_ipsr = ms->pmsa_ipsr; - old_regs->cr_ifs = ms->pmsa_ifs; - } else { - old_regs->cr_iip = ms->pmsa_xip; - old_regs->cr_ipsr = ms->pmsa_xpsr; - old_regs->cr_ifs = ms->pmsa_xfs; - } - old_regs->pr = ms->pmsa_pr; - old_regs->b0 = ms->pmsa_br0; old_regs->loadrs = loadrs; - old_regs->ar_rsc = ms->pmsa_rsc; old_unat = old_regs->ar_unat; - copy_reg(&ms->pmsa_gr[1-1], ms->pmsa_nat_bits, &old_regs->r1, &old_unat); - copy_reg(&ms->pmsa_gr[2-1], ms->pmsa_nat_bits, &old_regs->r2, &old_unat); - copy_reg(&ms->pmsa_gr[3-1], ms->pmsa_nat_bits, &old_regs->r3, &old_unat); - copy_reg(&ms->pmsa_gr[8-1], ms->pmsa_nat_bits, &old_regs->r8, &old_unat); - copy_reg(&ms->pmsa_gr[9-1], ms->pmsa_nat_bits, &old_regs->r9, &old_unat); - copy_reg(&ms->pmsa_gr[10-1], ms->pmsa_nat_bits, &old_regs->r10, &old_unat); - copy_reg(&ms->pmsa_gr[11-1], ms->pmsa_nat_bits, &old_regs->r11, &old_unat); - copy_reg(&ms->pmsa_gr[12-1], ms->pmsa_nat_bits, &old_regs->r12, &old_unat); - copy_reg(&ms->pmsa_gr[13-1], ms->pmsa_nat_bits, &old_regs->r13, &old_unat); - copy_reg(&ms->pmsa_gr[14-1], ms->pmsa_nat_bits, &old_regs->r14, &old_unat); - copy_reg(&ms->pmsa_gr[15-1], ms->pmsa_nat_bits, &old_regs->r15, &old_unat); - if (ia64_psr(old_regs)->bn) - bank = ms->pmsa_bank1_gr; - else - bank = ms->pmsa_bank0_gr; - copy_reg(&bank[16-16], ms->pmsa_nat_bits, &old_regs->r16, &old_unat); - copy_reg(&bank[17-16], ms->pmsa_nat_bits, &old_regs->r17, &old_unat); - copy_reg(&bank[18-16], ms->pmsa_nat_bits, &old_regs->r18, &old_unat); - copy_reg(&bank[19-16], ms->pmsa_nat_bits, &old_regs->r19, &old_unat); - copy_reg(&bank[20-16], ms->pmsa_nat_bits, &old_regs->r20, &old_unat); - copy_reg(&bank[21-16], ms->pmsa_nat_bits, &old_regs->r21, &old_unat); - copy_reg(&bank[22-16], ms->pmsa_nat_bits, &old_regs->r22, &old_unat); - copy_reg(&bank[23-16], ms->pmsa_nat_bits, &old_regs->r23, &old_unat); - copy_reg(&bank[24-16], ms->pmsa_nat_bits, &old_regs->r24, &old_unat); - copy_reg(&bank[25-16], ms->pmsa_nat_bits, &old_regs->r25, &old_unat); - copy_reg(&bank[26-16], ms->pmsa_nat_bits, &old_regs->r26, &old_unat); - copy_reg(&bank[27-16], ms->pmsa_nat_bits, &old_regs->r27, &old_unat); - copy_reg(&bank[28-16], ms->pmsa_nat_bits, &old_regs->r28, &old_unat); - copy_reg(&bank[29-16], ms->pmsa_nat_bits, &old_regs->r29, &old_unat); - copy_reg(&bank[30-16], ms->pmsa_nat_bits, &old_regs->r30, &old_unat); - copy_reg(&bank[31-16], ms->pmsa_nat_bits, &old_regs->r31, &old_unat); + finish_pt_regs(old_regs, ms, &old_unat); /* Next stack a struct switch_stack. mca_asm.S built a partial * switch_stack, copy it and fill in the blanks using pt_regs and @@ -1141,6 +1149,8 @@ ia64_mca_modify_original_stack(struct pt_regs *regs, no_mod: mprintk(KERN_INFO "cpu %d, %s %s, original stack not modified\n", smp_processor_id(), type, msg); + old_unat = regs->ar_unat; + finish_pt_regs(regs, ms, &old_unat); return previous_current; } diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c index 6db08599ebb..776dd40397e 100644 --- a/arch/ia64/kernel/unaligned.c +++ b/arch/ia64/kernel/unaligned.c @@ -60,7 +60,6 @@ dump (const char *str, void *vp, size_t len) */ int no_unaligned_warning; int unaligned_dump_stack; -static int noprint_warning; /* * For M-unit: @@ -1357,9 +1356,8 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs) /* watch for command names containing %s */ printk(KERN_WARNING "%s", buf); } else { - if (no_unaligned_warning && !noprint_warning) { - noprint_warning = 1; - printk(KERN_WARNING "%s(%d) encountered an " + if (no_unaligned_warning) { + printk_once(KERN_WARNING "%s(%d) encountered an " "unaligned exception which required\n" "kernel assistance, which degrades " "the performance of the application.\n" diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c index f426dc78d95..ee09d261f2e 100644 --- a/arch/ia64/mm/tlb.c +++ b/arch/ia64/mm/tlb.c @@ -100,24 +100,36 @@ wrap_mmu_context (struct mm_struct *mm) * this primitive it can be moved up to a spinaphore.h header. */ struct spinaphore { - atomic_t cur; + unsigned long ticket; + unsigned long serve; }; static inline void spinaphore_init(struct spinaphore *ss, int val) { - atomic_set(&ss->cur, val); + ss->ticket = 0; + ss->serve = val; } static inline void down_spin(struct spinaphore *ss) { - while (unlikely(!atomic_add_unless(&ss->cur, -1, 0))) - while (atomic_read(&ss->cur) == 0) - cpu_relax(); + unsigned long t = ia64_fetchadd(1, &ss->ticket, acq), serve; + + if (time_before(t, ss->serve)) + return; + + ia64_invala(); + + for (;;) { + asm volatile ("ld4.c.nc %0=[%1]" : "=r"(serve) : "r"(&ss->serve) : "memory"); + if (time_before(t, serve)) + return; + cpu_relax(); + } } static inline void up_spin(struct spinaphore *ss) { - atomic_add(1, &ss->cur); + ia64_fetchadd(1, &ss->serve, rel); } static struct spinaphore ptcg_sem; diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 7de76dd352f..c0fca2c1c85 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -56,10 +56,13 @@ int raw_pci_read(unsigned int seg, unsigned int bus, unsigned int devfn, if ((seg | reg) <= 255) { addr = PCI_SAL_ADDRESS(seg, bus, devfn, reg); mode = 0; - } else { + } else if (sal_revision >= SAL_VERSION_CODE(3,2)) { addr = PCI_SAL_EXT_ADDRESS(seg, bus, devfn, reg); mode = 1; + } else { + return -EINVAL; } + result = ia64_sal_pci_config_read(addr, mode, len, &data); if (result != 0) return -EINVAL; @@ -80,9 +83,11 @@ int raw_pci_write(unsigned int seg, unsigned int bus, unsigned int devfn, if ((seg | reg) <= 255) { addr = PCI_SAL_ADDRESS(seg, bus, devfn, reg); mode = 0; - } else { + } else if (sal_revision >= SAL_VERSION_CODE(3,2)) { addr = PCI_SAL_EXT_ADDRESS(seg, bus, devfn, reg); mode = 1; + } else { + return -EINVAL; } result = ia64_sal_pci_config_write(addr, mode, len, value); if (result != 0) diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c index 25831c47c57..308e6595110 100644 --- a/arch/ia64/sn/kernel/io_common.c +++ b/arch/ia64/sn/kernel/io_common.c @@ -119,7 +119,6 @@ sn_pcidev_info_get(struct pci_dev *dev) * Additionally note that the struct sn_flush_device_war also has to be * removed from arch/ia64/sn/include/xtalk/hubdev.h */ -static u8 war_implemented = 0; static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device, struct sn_flush_device_common *common) @@ -128,11 +127,8 @@ static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device, struct sn_flush_device_war *dev_entry; struct ia64_sal_retval isrv = {0,0,0,0}; - if (!war_implemented) { - printk(KERN_WARNING "PROM version < 4.50 -- implementing old " - "PROM flush WAR\n"); - war_implemented = 1; - } + printk_once(KERN_WARNING + "PROM version < 4.50 -- implementing old PROM flush WAR\n"); war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL); BUG_ON(!war_list); diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c index 4c7e7479095..55ac3c4e11d 100644 --- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c +++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c @@ -786,17 +786,18 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, unsigned long arg) break; case SN_HWPERF_GET_OBJ_NODE: - if (a.sz != sizeof(u64) || a.arg < 0) { + i = a.arg; + if (a.sz != sizeof(u64) || i < 0) { r = -EINVAL; goto error; } if ((r = sn_hwperf_enum_objects(&nobj, &objs)) == 0) { - if (a.arg >= nobj) { + if (i >= nobj) { r = -EINVAL; vfree(objs); goto error; } - if (objs[(i = a.arg)].id != a.arg) { + if (objs[i].id != a.arg) { for (i = 0; i < nobj; i++) { if (objs[i].id == a.arg) break; diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 07e01149e3b..72ace9515a0 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1443,12 +1443,8 @@ config SECCOMP If unsure, say Y. Only embedded should say N here. -config CC_STACKPROTECTOR_ALL - bool - config CC_STACKPROTECTOR bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" - select CC_STACKPROTECTOR_ALL ---help--- This option turns on the -fstack-protector GCC feature. This feature puts, at the beginning of functions, a canary value on diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index f2824fb8c79..2649840d888 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -400,7 +400,7 @@ config X86_TSC config X86_CMPXCHG64 def_bool y - depends on X86_PAE || X86_64 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MATOM + depends on !M386 && !M486 # this should be set for all -march=.. options where the compiler # generates cmov. diff --git a/arch/x86/Makefile b/arch/x86/Makefile index a012ee8ef80..d2d24c9ee64 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -76,7 +76,6 @@ ifdef CONFIG_CC_STACKPROTECTOR cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(biarch)),y) stackp-y := -fstack-protector - stackp-$(CONFIG_CC_STACKPROTECTOR_ALL) += -fstack-protector-all KBUILD_CFLAGS += $(stackp-y) else $(warning stack protector enabled but no compiler support) diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 1733f9f65e8..581b0568fe1 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -204,7 +204,7 @@ sysexit_from_sys_call: movl RDI-ARGOFFSET(%rsp),%r8d /* reload 5th syscall arg */ .endm - .macro auditsys_exit exit,ebpsave=RBP + .macro auditsys_exit exit testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r10) jnz ia32_ret_from_sys_call TRACE_IRQS_ON @@ -217,7 +217,6 @@ sysexit_from_sys_call: call audit_syscall_exit GET_THREAD_INFO(%r10) movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall return value */ - movl \ebpsave-ARGOFFSET(%rsp),%ebp /* reload user register value */ movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi cli TRACE_IRQS_OFF @@ -351,7 +350,7 @@ cstar_auditsys: jmp cstar_dispatch sysretl_audit: - auditsys_exit sysretl_from_sys_call, RCX /* user %ebp in RCX slot */ + auditsys_exit sysretl_from_sys_call #endif cstar_tracesys: diff --git a/arch/x86/kernel/crash_dump_32.c b/arch/x86/kernel/crash_dump_32.c index f7cdb3b457a..cd97ce18c29 100644 --- a/arch/x86/kernel/crash_dump_32.c +++ b/arch/x86/kernel/crash_dump_32.c @@ -16,6 +16,22 @@ static void *kdump_buf_page; /* Stores the physical address of elf header of crash image. */ unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; +static inline bool is_crashed_pfn_valid(unsigned long pfn) +{ +#ifndef CONFIG_X86_PAE + /* + * non-PAE kdump kernel executed from a PAE one will crop high pte + * bits and poke unwanted space counting again from address 0, we + * don't want that. pte must fit into unsigned long. In fact the + * test checks high 12 bits for being zero (pfn will be shifted left + * by PAGE_SHIFT). + */ + return pte_pfn(pfn_pte(pfn, __pgprot(0))) == pfn; +#else + return true; +#endif +} + /** * copy_oldmem_page - copy one page from "oldmem" * @pfn: page frame number to be copied @@ -41,6 +57,9 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, if (!csize) return 0; + if (!is_crashed_pfn_valid(pfn)) + return -EFAULT; + vaddr = kmap_atomic_pfn(pfn, KM_PTE0); if (!userbuf) { diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index ad5bd988fb7..cdcfb122f25 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -454,8 +454,10 @@ void __init efi_init(void) if (add_efi_memmap) do_add_efi_memmap(); +#ifdef CONFIG_X86_32 x86_platform.get_wallclock = efi_get_time; x86_platform.set_wallclock = efi_set_rtc_mmss; +#endif /* Setup for EFI runtime service */ reboot_type = BOOT_EFI; diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index b93814c0d3e..7f436ec075f 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -89,7 +89,8 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) pci_set_power_state(dev->pdev, PCI_D3hot); } - dev_priv->suspended = 1; + /* Modeset on resume, not lid events */ + dev_priv->modeset_on_lid = 0; return 0; } @@ -124,7 +125,7 @@ static int i915_resume(struct drm_device *dev) drm_helper_resume_force_mode(dev); } - dev_priv->suspended = 0; + dev_priv->modeset_on_lid = 0; return ret; } diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 6035d3dae85..c5df2234418 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -274,7 +274,7 @@ typedef struct drm_i915_private { struct drm_i915_display_funcs display; /* Register state */ - bool suspended; + bool modeset_on_lid; u8 saveLBB; u32 saveDSPACNTR; u32 saveDSPBCNTR; diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 98ae3d73577..808bbe412ba 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -656,6 +656,15 @@ static int intel_lvds_get_modes(struct drm_connector *connector) return 0; } +/* + * Lid events. Note the use of 'modeset_on_lid': + * - we set it on lid close, and reset it on open + * - we use it as a "only once" bit (ie we ignore + * duplicate events where it was already properly + * set/reset) + * - the suspend/resume paths will also set it to + * zero, since they restore the mode ("lid open"). + */ static int intel_lid_notify(struct notifier_block *nb, unsigned long val, void *unused) { @@ -663,13 +672,19 @@ static int intel_lid_notify(struct notifier_block *nb, unsigned long val, container_of(nb, struct drm_i915_private, lid_notifier); struct drm_device *dev = dev_priv->dev; - if (acpi_lid_open() && !dev_priv->suspended) { - mutex_lock(&dev->mode_config.mutex); - drm_helper_resume_force_mode(dev); - mutex_unlock(&dev->mode_config.mutex); + if (!acpi_lid_open()) { + dev_priv->modeset_on_lid = 1; + return NOTIFY_OK; } - drm_sysfs_hotplug_event(dev_priv->dev); + if (!dev_priv->modeset_on_lid) + return NOTIFY_OK; + + dev_priv->modeset_on_lid = 0; + + mutex_lock(&dev->mode_config.mutex); + drm_helper_resume_force_mode(dev); + mutex_unlock(&dev->mode_config.mutex); return NOTIFY_OK; } diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 984ca0cb38c..00d153f2f26 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -743,6 +743,7 @@ struct ext4_inode_info { #define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */ #define EXT4_MOUNT_USRQUOTA 0x100000 /* "old" user quota */ #define EXT4_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */ +#define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000 /* Journal checksums */ #define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */ #define EXT4_MOUNT_I_VERSION 0x2000000 /* i_version support */ #define EXT4_MOUNT_DELALLOC 0x8000000 /* Delalloc support */ diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 312211ee05a..d4ca92aab51 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1300,9 +1300,11 @@ static int parse_options(char *options, struct super_block *sb, *journal_devnum = option; break; case Opt_journal_checksum: - break; /* Kept for backwards compatibility */ + set_opt(sbi->s_mount_opt, JOURNAL_CHECKSUM); + break; case Opt_journal_async_commit: set_opt(sbi->s_mount_opt, JOURNAL_ASYNC_COMMIT); + set_opt(sbi->s_mount_opt, JOURNAL_CHECKSUM); break; case Opt_noload: set_opt(sbi->s_mount_opt, NOLOAD); @@ -2759,14 +2761,20 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) goto failed_mount4; } - jbd2_journal_set_features(sbi->s_journal, - JBD2_FEATURE_COMPAT_CHECKSUM, 0, 0); - if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) - jbd2_journal_set_features(sbi->s_journal, 0, 0, + if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) { + jbd2_journal_set_features(sbi->s_journal, + JBD2_FEATURE_COMPAT_CHECKSUM, 0, JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); - else + } else if (test_opt(sb, JOURNAL_CHECKSUM)) { + jbd2_journal_set_features(sbi->s_journal, + JBD2_FEATURE_COMPAT_CHECKSUM, 0, 0); jbd2_journal_clear_features(sbi->s_journal, 0, 0, JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); + } else { + jbd2_journal_clear_features(sbi->s_journal, + JBD2_FEATURE_COMPAT_CHECKSUM, 0, + JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); + } /* We have now updated the journal if required, so we can * validate the data journaling mode. */ diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 2e6d95f9741..9e7012689a8 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -471,8 +471,8 @@ struct hw_perf_event { unsigned long event_base; int idx; }; - union { /* software */ - atomic64_t count; + struct { /* software */ + s64 remaining; struct hrtimer hrtimer; }; }; diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h index c134dd1fe6b..09077f6ed12 100644 --- a/include/linux/trace_seq.h +++ b/include/linux/trace_seq.h @@ -7,7 +7,7 @@ /* * Trace sequences are used to allow a function to call several other functions - * to create a string of data to use (up to a max of PAGE_SIZE. + * to create a string of data to use (up to a max of PAGE_SIZE). */ struct trace_seq { diff --git a/kernel/futex.c b/kernel/futex.c index 642f3bbaacc..fb65e822fc4 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -2127,7 +2127,7 @@ int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb, plist_del(&q->list, &q->list.plist); /* Handle spurious wakeups gracefully */ - ret = -EAGAIN; + ret = -EWOULDBLOCK; if (timeout && !timeout->task) ret = -ETIMEDOUT; else if (signal_pending(current)) @@ -2208,7 +2208,6 @@ static int futex_wait_requeue_pi(u32 __user *uaddr, int fshared, debug_rt_mutex_init_waiter(&rt_waiter); rt_waiter.task = NULL; -retry: key2 = FUTEX_KEY_INIT; ret = get_futex_key(uaddr2, fshared, &key2, VERIFY_WRITE); if (unlikely(ret != 0)) @@ -2303,9 +2302,6 @@ out_put_keys: out_key2: put_futex_key(fshared, &key2); - /* Spurious wakeup ? */ - if (ret == -EAGAIN) - goto retry; out: if (to) { hrtimer_cancel(&to->timer); diff --git a/kernel/perf_event.c b/kernel/perf_event.c index afb7ef3dbc4..7f29643c898 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -3959,8 +3959,9 @@ static enum hrtimer_restart perf_swevent_hrtimer(struct hrtimer *hrtimer) regs = task_pt_regs(current); if (regs) { - if (perf_event_overflow(event, 0, &data, regs)) - ret = HRTIMER_NORESTART; + if (!(event->attr.exclude_idle && current->pid == 0)) + if (perf_event_overflow(event, 0, &data, regs)) + ret = HRTIMER_NORESTART; } period = max_t(u64, 10000, event->hw.sample_period); @@ -3969,6 +3970,42 @@ static enum hrtimer_restart perf_swevent_hrtimer(struct hrtimer *hrtimer) return ret; } +static void perf_swevent_start_hrtimer(struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + + hrtimer_init(&hwc->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + hwc->hrtimer.function = perf_swevent_hrtimer; + if (hwc->sample_period) { + u64 period; + + if (hwc->remaining) { + if (hwc->remaining < 0) + period = 10000; + else + period = hwc->remaining; + hwc->remaining = 0; + } else { + period = max_t(u64, 10000, hwc->sample_period); + } + __hrtimer_start_range_ns(&hwc->hrtimer, + ns_to_ktime(period), 0, + HRTIMER_MODE_REL, 0); + } +} + +static void perf_swevent_cancel_hrtimer(struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + + if (hwc->sample_period) { + ktime_t remaining = hrtimer_get_remaining(&hwc->hrtimer); + hwc->remaining = ktime_to_ns(remaining); + + hrtimer_cancel(&hwc->hrtimer); + } +} + /* * Software event: cpu wall time clock */ @@ -3991,22 +4028,14 @@ static int cpu_clock_perf_event_enable(struct perf_event *event) int cpu = raw_smp_processor_id(); atomic64_set(&hwc->prev_count, cpu_clock(cpu)); - hrtimer_init(&hwc->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - hwc->hrtimer.function = perf_swevent_hrtimer; - if (hwc->sample_period) { - u64 period = max_t(u64, 10000, hwc->sample_period); - __hrtimer_start_range_ns(&hwc->hrtimer, - ns_to_ktime(period), 0, - HRTIMER_MODE_REL, 0); - } + perf_swevent_start_hrtimer(event); return 0; } static void cpu_clock_perf_event_disable(struct perf_event *event) { - if (event->hw.sample_period) - hrtimer_cancel(&event->hw.hrtimer); + perf_swevent_cancel_hrtimer(event); cpu_clock_perf_event_update(event); } @@ -4043,22 +4072,15 @@ static int task_clock_perf_event_enable(struct perf_event *event) now = event->ctx->time; atomic64_set(&hwc->prev_count, now); - hrtimer_init(&hwc->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - hwc->hrtimer.function = perf_swevent_hrtimer; - if (hwc->sample_period) { - u64 period = max_t(u64, 10000, hwc->sample_period); - __hrtimer_start_range_ns(&hwc->hrtimer, - ns_to_ktime(period), 0, - HRTIMER_MODE_REL, 0); - } + + perf_swevent_start_hrtimer(event); return 0; } static void task_clock_perf_event_disable(struct perf_event *event) { - if (event->hw.sample_period) - hrtimer_cancel(&event->hw.hrtimer); + perf_swevent_cancel_hrtimer(event); task_clock_perf_event_update(event, event->ctx->time); } diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 37ba67e3326..9c451a1930b 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -740,7 +740,7 @@ ftrace_profile_write(struct file *filp, const char __user *ubuf, out: mutex_unlock(&ftrace_profile_lock); - filp->f_pos += cnt; + *ppos += cnt; return cnt; } diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index d4ff0197054..3ffa502fb24 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -483,7 +483,7 @@ struct ring_buffer_iter { /* Up this if you want to test the TIME_EXTENTS and normalization */ #define DEBUG_SHIFT 0 -static inline u64 rb_time_stamp(struct ring_buffer *buffer, int cpu) +static inline u64 rb_time_stamp(struct ring_buffer *buffer) { /* shift to debug/test normalization and TIME_EXTENTS */ return buffer->clock() << DEBUG_SHIFT; @@ -494,7 +494,7 @@ u64 ring_buffer_time_stamp(struct ring_buffer *buffer, int cpu) u64 time; preempt_disable_notrace(); - time = rb_time_stamp(buffer, cpu); + time = rb_time_stamp(buffer); preempt_enable_no_resched_notrace(); return time; @@ -599,7 +599,7 @@ static struct list_head *rb_list_head(struct list_head *list) } /* - * rb_is_head_page - test if the give page is the head page + * rb_is_head_page - test if the given page is the head page * * Because the reader may move the head_page pointer, we can * not trust what the head page is (it may be pointing to @@ -1868,7 +1868,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer, * Nested commits always have zero deltas, so * just reread the time stamp */ - *ts = rb_time_stamp(buffer, cpu_buffer->cpu); + *ts = rb_time_stamp(buffer); next_page->page->time_stamp = *ts; } @@ -2111,7 +2111,7 @@ rb_reserve_next_event(struct ring_buffer *buffer, if (RB_WARN_ON(cpu_buffer, ++nr_loops > 1000)) goto out_fail; - ts = rb_time_stamp(cpu_buffer->buffer, cpu_buffer->cpu); + ts = rb_time_stamp(cpu_buffer->buffer); /* * Only the first commit can update the timestamp. @@ -2681,7 +2681,7 @@ unsigned long ring_buffer_entries(struct ring_buffer *buffer) EXPORT_SYMBOL_GPL(ring_buffer_entries); /** - * ring_buffer_overrun_cpu - get the number of overruns in buffer + * ring_buffer_overruns - get the number of overruns in buffer * @buffer: The ring buffer * * Returns the total number of overruns in the ring buffer diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index c820b0310a1..b20d3ec75de 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2440,7 +2440,7 @@ tracing_trace_options_write(struct file *filp, const char __user *ubuf, return ret; } - filp->f_pos += cnt; + *ppos += cnt; return cnt; } @@ -2582,7 +2582,7 @@ tracing_ctrl_write(struct file *filp, const char __user *ubuf, } mutex_unlock(&trace_types_lock); - filp->f_pos += cnt; + *ppos += cnt; return cnt; } @@ -2764,7 +2764,7 @@ tracing_set_trace_write(struct file *filp, const char __user *ubuf, if (err) return err; - filp->f_pos += ret; + *ppos += ret; return ret; } @@ -3299,7 +3299,7 @@ tracing_entries_write(struct file *filp, const char __user *ubuf, } } - filp->f_pos += cnt; + *ppos += cnt; /* If check pages failed, return ENOMEM */ if (tracing_disabled) diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index ed17565826b..b6c12c6a1bc 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -69,6 +69,9 @@ enum print_line_t trace_print_printk_msg_only(struct trace_iterator *iter) * @s: trace sequence descriptor * @fmt: printf format string * + * It returns 0 if the trace oversizes the buffer's free + * space, 1 otherwise. + * * The tracer may use either sequence operations or its own * copy to user routines. To simplify formating of a trace * trace_seq_printf is used to store strings into a special @@ -95,7 +98,7 @@ trace_seq_printf(struct trace_seq *s, const char *fmt, ...) s->len += ret; - return len; + return 1; } EXPORT_SYMBOL_GPL(trace_seq_printf); diff --git a/mm/swapfile.c b/mm/swapfile.c index a1bc6b9af9a..9c590eef791 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1151,8 +1151,7 @@ static int try_to_unuse(unsigned int type) } else retval = unuse_mm(mm, entry, page); - if (set_start_mm && - swap_count(*swap_map) < swcount) { + if (set_start_mm && *swap_map < swcount) { mmput(new_start_mm); atomic_inc(&mm->mm_users); new_start_mm = mm; diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 0c1440121c2..c69c60b2a48 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -953,11 +953,12 @@ static int snd_pcm_dev_register(struct snd_device *device) struct snd_pcm_substream *substream; struct snd_pcm_notify *notify; char str[16]; - struct snd_pcm *pcm = device->device_data; + struct snd_pcm *pcm; struct device *dev; - if (snd_BUG_ON(!pcm || !device)) + if (snd_BUG_ON(!device || !device->device_data)) return -ENXIO; + pcm = device->device_data; mutex_lock(®ister_mutex); err = snd_pcm_add(pcm); if (err) { diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c index 6ba066c41d2..252e04ce602 100644 --- a/sound/drivers/dummy.c +++ b/sound/drivers/dummy.c @@ -165,7 +165,7 @@ MODULE_PARM_DESC(enable, "Enable this dummy soundcard."); module_param_array(pcm_devs, int, NULL, 0444); MODULE_PARM_DESC(pcm_devs, "PCM devices # (0-4) for dummy driver."); module_param_array(pcm_substreams, int, NULL, 0444); -MODULE_PARM_DESC(pcm_substreams, "PCM substreams # (1-16) for dummy driver."); +MODULE_PARM_DESC(pcm_substreams, "PCM substreams # (1-128) for dummy driver."); //module_param_array(midi_devs, int, NULL, 0444); //MODULE_PARM_DESC(midi_devs, "MIDI devices # (0-2) for dummy driver."); module_param(fake_buffer, bool, 0444); @@ -808,8 +808,6 @@ static int __devinit snd_card_dummy_new_mixer(struct snd_dummy *dummy) unsigned int idx; int err; - if (snd_BUG_ON(!dummy)) - return -EINVAL; spin_lock_init(&dummy->mixer_lock); strcpy(card->mixername, "Dummy Mixer"); diff --git a/sound/drivers/pcsp/pcsp_lib.c b/sound/drivers/pcsp/pcsp_lib.c index 84cc2658c05..e1145ac6e90 100644 --- a/sound/drivers/pcsp/pcsp_lib.c +++ b/sound/drivers/pcsp/pcsp_lib.c @@ -39,25 +39,20 @@ static DECLARE_TASKLET(pcsp_pcm_tasklet, pcsp_call_pcm_elapsed, 0); /* write the port and returns the next expire time in ns; * called at the trigger-start and in hrtimer callback */ -static unsigned long pcsp_timer_update(struct hrtimer *handle) +static u64 pcsp_timer_update(struct snd_pcsp *chip) { unsigned char timer_cnt, val; u64 ns; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; - struct snd_pcsp *chip = container_of(handle, struct snd_pcsp, timer); unsigned long flags; if (chip->thalf) { outb(chip->val61, 0x61); chip->thalf = 0; - if (!atomic_read(&chip->timer_active)) - return 0; return chip->ns_rem; } - if (!atomic_read(&chip->timer_active)) - return 0; substream = chip->playback_substream; if (!substream) return 0; @@ -88,24 +83,17 @@ static unsigned long pcsp_timer_update(struct hrtimer *handle) return ns; } -enum hrtimer_restart pcsp_do_timer(struct hrtimer *handle) +static void pcsp_pointer_update(struct snd_pcsp *chip) { - struct snd_pcsp *chip = container_of(handle, struct snd_pcsp, timer); struct snd_pcm_substream *substream; - int periods_elapsed, pointer_update; size_t period_bytes, buffer_bytes; - unsigned long ns; + int periods_elapsed; unsigned long flags; - pointer_update = !chip->thalf; - ns = pcsp_timer_update(handle); - if (!ns) - return HRTIMER_NORESTART; - /* update the playback position */ substream = chip->playback_substream; if (!substream) - return HRTIMER_NORESTART; + return; period_bytes = snd_pcm_lib_period_bytes(substream); buffer_bytes = snd_pcm_lib_buffer_bytes(substream); @@ -134,6 +122,26 @@ enum hrtimer_restart pcsp_do_timer(struct hrtimer *handle) if (periods_elapsed) tasklet_schedule(&pcsp_pcm_tasklet); +} + +enum hrtimer_restart pcsp_do_timer(struct hrtimer *handle) +{ + struct snd_pcsp *chip = container_of(handle, struct snd_pcsp, timer); + int pointer_update; + u64 ns; + + if (!atomic_read(&chip->timer_active) || !chip->playback_substream) + return HRTIMER_NORESTART; + + pointer_update = !chip->thalf; + ns = pcsp_timer_update(chip); + if (!ns) { + printk(KERN_WARNING "PCSP: unexpected stop\n"); + return HRTIMER_NORESTART; + } + + if (pointer_update) + pcsp_pointer_update(chip); hrtimer_forward(handle, hrtimer_get_expires(handle), ns_to_ktime(ns)); @@ -142,8 +150,6 @@ enum hrtimer_restart pcsp_do_timer(struct hrtimer *handle) static int pcsp_start_playing(struct snd_pcsp *chip) { - unsigned long ns; - #if PCSP_DEBUG printk(KERN_INFO "PCSP: start_playing called\n"); #endif @@ -159,11 +165,7 @@ static int pcsp_start_playing(struct snd_pcsp *chip) atomic_set(&chip->timer_active, 1); chip->thalf = 0; - ns = pcsp_timer_update(&pcsp_chip.timer); - if (!ns) - return -EIO; - - hrtimer_start(&pcsp_chip.timer, ktime_set(0, ns), HRTIMER_MODE_REL); + hrtimer_start(&pcsp_chip.timer, ktime_set(0, 0), HRTIMER_MODE_REL); return 0; } @@ -232,21 +234,22 @@ static int snd_pcsp_playback_hw_free(struct snd_pcm_substream *substream) static int snd_pcsp_playback_prepare(struct snd_pcm_substream *substream) { struct snd_pcsp *chip = snd_pcm_substream_chip(substream); + pcsp_sync_stop(chip); + chip->playback_ptr = 0; + chip->period_ptr = 0; + chip->fmt_size = + snd_pcm_format_physical_width(substream->runtime->format) >> 3; + chip->is_signed = snd_pcm_format_signed(substream->runtime->format); #if PCSP_DEBUG printk(KERN_INFO "PCSP: prepare called, " - "size=%zi psize=%zi f=%zi f1=%i\n", + "size=%zi psize=%zi f=%zi f1=%i fsize=%i\n", snd_pcm_lib_buffer_bytes(substream), snd_pcm_lib_period_bytes(substream), snd_pcm_lib_buffer_bytes(substream) / snd_pcm_lib_period_bytes(substream), - substream->runtime->periods); + substream->runtime->periods, + chip->fmt_size); #endif - pcsp_sync_stop(chip); - chip->playback_ptr = 0; - chip->period_ptr = 0; - chip->fmt_size = - snd_pcm_format_physical_width(substream->runtime->format) >> 3; - chip->is_signed = snd_pcm_format_signed(substream->runtime->format); return 0; } diff --git a/sound/drivers/pcsp/pcsp_mixer.c b/sound/drivers/pcsp/pcsp_mixer.c index 199b0337714..903bc846763 100644 --- a/sound/drivers/pcsp/pcsp_mixer.c +++ b/sound/drivers/pcsp/pcsp_mixer.c @@ -72,7 +72,7 @@ static int pcsp_treble_put(struct snd_kcontrol *kcontrol, if (treble != chip->treble) { chip->treble = treble; #if PCSP_DEBUG - printk(KERN_INFO "PCSP: rate set to %i\n", PCSP_RATE()); + printk(KERN_INFO "PCSP: rate set to %li\n", PCSP_RATE()); #endif changed = 1; } diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c index e924492df21..f47f9e226b0 100644 --- a/sound/parisc/harmony.c +++ b/sound/parisc/harmony.c @@ -624,6 +624,9 @@ snd_harmony_pcm_init(struct snd_harmony *h) struct snd_pcm *pcm; int err; + if (snd_BUG_ON(!h)) + return -EINVAL; + harmony_disable_interrupts(h); err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm); @@ -865,11 +868,12 @@ snd_harmony_mixer_reset(struct snd_harmony *h) static int __devinit snd_harmony_mixer_init(struct snd_harmony *h) { - struct snd_card *card = h->card; + struct snd_card *card; int idx, err; if (snd_BUG_ON(!h)) return -EINVAL; + card = h->card; strcpy(card->mixername, "Harmony Gain control interface"); for (idx = 0; idx < HARMONY_CONTROLS; idx++) { diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig index fb5ee3cc396..75c602b5b13 100644 --- a/sound/pci/Kconfig +++ b/sound/pci/Kconfig @@ -259,7 +259,6 @@ config SND_CS5530 config SND_CS5535AUDIO tristate "CS5535/CS5536 Audio" - depends on X86 && !X86_64 select SND_PCM select SND_AC97_CODEC help diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c index b458d208720..aaf4da68969 100644 --- a/sound/pci/ali5451/ali5451.c +++ b/sound/pci/ali5451/ali5451.c @@ -973,7 +973,7 @@ static void snd_ali_free_voice(struct snd_ali * codec, void *private_data; snd_ali_printk("free_voice: channel=%d\n",pvoice->number); - if (pvoice == NULL || !pvoice->use) + if (!pvoice->use) return; snd_ali_clear_voices(codec, pvoice->number, pvoice->number); spin_lock_irq(&codec->voice_alloc); diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index c9ad182e1b4..e340792f6cb 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2674,6 +2674,7 @@ static struct pci_device_id azx_ids[] = { { PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA }, { PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA }, { PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA }, + { PCI_DEVICE(0x10de, 0x0590), .driver_data = AZX_DRIVER_NVIDIA }, { PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA }, { PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA }, { PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA }, diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index c08ca660dab..ff20048504b 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -965,6 +965,8 @@ static void alc_automute_pin(struct hda_codec *codec) unsigned int nid = spec->autocfg.hp_pins[0]; int i; + if (!nid) + return; pincap = snd_hda_query_pin_caps(codec, nid); if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */ snd_hda_codec_read(codec, nid, 0, AC_VERB_SET_PIN_SENSE, 0); @@ -12602,7 +12604,8 @@ static struct snd_pci_quirk alc268_cfg_tbl[] = { SND_PCI_QUIRK(0x1025, 0x015b, "Acer Aspire One", ALC268_ACER_ASPIRE_ONE), SND_PCI_QUIRK(0x1028, 0x0253, "Dell OEM", ALC268_DELL), - SND_PCI_QUIRK(0x1028, 0x02b0, "Dell Inspiron Mini9", ALC268_DELL), + SND_PCI_QUIRK_MASK(0x1028, 0xfff0, 0x02b0, + "Dell Inspiron Mini9/Vostro A90", ALC268_DELL), /* almost compatible with toshiba but with optional digital outs; * auto-probing seems working fine */ @@ -17374,7 +17377,7 @@ static int alc662_auto_create_extra_out(struct hda_codec *codec, hda_nid_t pin, /* create playback/capture controls for input pins */ #define alc662_auto_create_input_ctls \ - alc880_auto_create_input_ctls + alc882_auto_create_input_ctls static void alc662_auto_set_output_and_unmute(struct hda_codec *codec, hda_nid_t nid, int pin_type, diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c index 91683a34903..8a332d2f615 100644 --- a/sound/pci/via82xx.c +++ b/sound/pci/via82xx.c @@ -386,6 +386,7 @@ struct via82xx { struct snd_pcm *pcms[2]; struct snd_rawmidi *rmidi; + struct snd_kcontrol *dxs_controls[4]; struct snd_ac97_bus *ac97_bus; struct snd_ac97 *ac97; @@ -1216,9 +1217,9 @@ static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev, /* - * open callback for playback on via686 and via823x DSX + * open callback for playback on via686 */ -static int snd_via82xx_playback_open(struct snd_pcm_substream *substream) +static int snd_via686_playback_open(struct snd_pcm_substream *substream) { struct via82xx *chip = snd_pcm_substream_chip(substream); struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number]; @@ -1230,6 +1231,32 @@ static int snd_via82xx_playback_open(struct snd_pcm_substream *substream) } /* + * open callback for playback on via823x DXS + */ +static int snd_via8233_playback_open(struct snd_pcm_substream *substream) +{ + struct via82xx *chip = snd_pcm_substream_chip(substream); + struct viadev *viadev; + unsigned int stream; + int err; + + viadev = &chip->devs[chip->playback_devno + substream->number]; + if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0) + return err; + stream = viadev->reg_offset / 0x10; + if (chip->dxs_controls[stream]) { + chip->playback_volume[stream][0] = 0; + chip->playback_volume[stream][1] = 0; + chip->dxs_controls[stream]->vd[0].access &= + ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; + snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE | + SNDRV_CTL_EVENT_MASK_INFO, + &chip->dxs_controls[stream]->id); + } + return 0; +} + +/* * open callback for playback on via823x multi-channel */ static int snd_via8233_multi_open(struct snd_pcm_substream *substream) @@ -1302,10 +1329,26 @@ static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream) return 0; } +static int snd_via8233_playback_close(struct snd_pcm_substream *substream) +{ + struct via82xx *chip = snd_pcm_substream_chip(substream); + struct viadev *viadev = substream->runtime->private_data; + unsigned int stream; + + stream = viadev->reg_offset / 0x10; + if (chip->dxs_controls[stream]) { + chip->dxs_controls[stream]->vd[0].access |= + SNDRV_CTL_ELEM_ACCESS_INACTIVE; + snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO, + &chip->dxs_controls[stream]->id); + } + return snd_via82xx_pcm_close(substream); +} + /* via686 playback callbacks */ static struct snd_pcm_ops snd_via686_playback_ops = { - .open = snd_via82xx_playback_open, + .open = snd_via686_playback_open, .close = snd_via82xx_pcm_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_via82xx_hw_params, @@ -1331,8 +1374,8 @@ static struct snd_pcm_ops snd_via686_capture_ops = { /* via823x DSX playback callbacks */ static struct snd_pcm_ops snd_via8233_playback_ops = { - .open = snd_via82xx_playback_open, - .close = snd_via82xx_pcm_close, + .open = snd_via8233_playback_open, + .close = snd_via8233_playback_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_via82xx_hw_params, .hw_free = snd_via82xx_hw_free, @@ -1709,8 +1752,9 @@ static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = { .device = 0, /* .subdevice set later */ .name = "PCM Playback Volume", - .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ), + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ | + SNDRV_CTL_ELEM_ACCESS_INACTIVE, .info = snd_via8233_dxs_volume_info, .get = snd_via8233_dxs_volume_get, .put = snd_via8233_dxs_volume_put, @@ -1948,6 +1992,7 @@ static int __devinit snd_via8233_init_misc(struct via82xx *chip) err = snd_ctl_add(chip->card, kctl); if (err < 0) return err; + chip->dxs_controls[i] = kctl; } } } diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf.c b/sound/pcmcia/pdaudiocf/pdaudiocf.c index 7dea74b71cf..64b859925c0 100644 --- a/sound/pcmcia/pdaudiocf/pdaudiocf.c +++ b/sound/pcmcia/pdaudiocf/pdaudiocf.c @@ -217,20 +217,25 @@ static void snd_pdacf_detach(struct pcmcia_device *link) * configuration callback */ -#define CS_CHECK(fn, ret) \ -do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) - static int pdacf_config(struct pcmcia_device *link) { struct snd_pdacf *pdacf = link->priv; - int last_fn, last_ret; + int ret; snd_printdd(KERN_DEBUG "pdacf_config called\n"); link->conf.ConfigIndex = 0x5; - CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io)); - CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); - CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); + ret = pcmcia_request_io(link, &link->io); + if (ret) + goto failed; + + ret = pcmcia_request_irq(link, &link->irq); + if (ret) + goto failed; + + ret = pcmcia_request_configuration(link, &link->conf); + if (ret) + goto failed; if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq.AssignedIRQ) < 0) goto failed; @@ -238,8 +243,6 @@ static int pdacf_config(struct pcmcia_device *link) link->dev_node = &pdacf->node; return 0; -cs_failed: - cs_error(link, last_fn, last_ret); failed: pcmcia_disable_device(link); return -ENODEV; diff --git a/sound/pcmcia/vx/vxpocket.c b/sound/pcmcia/vx/vxpocket.c index 7445cc8a47d..1492744ad67 100644 --- a/sound/pcmcia/vx/vxpocket.c +++ b/sound/pcmcia/vx/vxpocket.c @@ -213,14 +213,11 @@ static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq * configuration callback */ -#define CS_CHECK(fn, ret) \ -do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) - static int vxpocket_config(struct pcmcia_device *link) { struct vx_core *chip = link->priv; struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip; - int last_fn, last_ret; + int ret; snd_printdd(KERN_DEBUG "vxpocket_config called\n"); @@ -235,9 +232,17 @@ static int vxpocket_config(struct pcmcia_device *link) strcpy(chip->card->driver, vxp440_hw.name); } - CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io)); - CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); - CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); + ret = pcmcia_request_io(link, &link->io); + if (ret) + goto failed; + + ret = pcmcia_request_irq(link, &link->irq); + if (ret) + goto failed; + + ret = pcmcia_request_configuration(link, &link->conf); + if (ret) + goto failed; chip->dev = &handle_to_dev(link); snd_card_set_dev(chip->card, chip->dev); @@ -248,8 +253,6 @@ static int vxpocket_config(struct pcmcia_device *link) link->dev_node = &vxp->node; return 0; -cs_failed: - cs_error(link, last_fn, last_ret); failed: pcmcia_disable_device(link); return -ENODEV; diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig index 2dee9839be8..653a362425d 100644 --- a/sound/soc/omap/Kconfig +++ b/sound/soc/omap/Kconfig @@ -21,7 +21,18 @@ config SND_OMAP_SOC_AMS_DELTA select SND_OMAP_SOC_MCBSP select SND_SOC_CX20442 help - Say Y if you want to add support for SoC audio on Amstrad Delta. + Say Y if you want to add support for SoC audio device connected to + a handset and a speakerphone found on Amstrad E3 (Delta) videophone. + + Note that in order to get those devices fully supported, you have to + build the kernel with standard serial port driver included and + configured for at least 4 ports. Then, from userspace, you must load + a line discipline #19 on the modem (ttyS3) serial line. The simplest + way to achieve this is to install util-linux-ng and use the included + ldattach utility. This can be started automatically from udev, + a simple rule like this one should do the trick (it does for me): + ACTION=="add", KERNEL=="controlC0", \ + RUN+="/usr/sbin/ldattach 19 /dev/ttyS3" config SND_OMAP_SOC_OSK5912 tristate "SoC Audio support for omap osk5912" diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 7ff04ad2a97..0a1b2f64bbe 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -834,6 +834,9 @@ EXPORT_SYMBOL_GPL(snd_soc_resume_device); #define soc_resume NULL #endif +static struct snd_soc_dai_ops null_dai_ops = { +}; + static void snd_soc_instantiate_card(struct snd_soc_card *card) { struct platform_device *pdev = container_of(card->dev, @@ -877,6 +880,11 @@ static void snd_soc_instantiate_card(struct snd_soc_card *card) ac97 = 1; } + for (i = 0; i < card->num_links; i++) { + if (!card->dai_link[i].codec_dai->ops) + card->dai_link[i].codec_dai->ops = &null_dai_ops; + } + /* If we have AC97 in the system then don't wait for the * codec. This will need revisiting if we have to handle * systems with mixed AC97 and non-AC97 parts. Only check for @@ -2329,9 +2337,6 @@ static int snd_soc_unregister_card(struct snd_soc_card *card) return 0; } -static struct snd_soc_dai_ops null_dai_ops = { -}; - /** * snd_soc_register_dai - Register a DAI with the ASoC core * diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 8de6f9dec4a..d89f6dc0090 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -2072,9 +2072,9 @@ int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, } } } - mutex_unlock(&codec->mutex); dapm_power_widgets(codec, event); + mutex_unlock(&codec->mutex); dump_dapm(codec, __func__); return 0; } diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c index 121af0644fd..86b2c3b92df 100644 --- a/sound/usb/caiaq/audio.c +++ b/sound/usb/caiaq/audio.c @@ -62,10 +62,14 @@ static void activate_substream(struct snd_usb_caiaqdev *dev, struct snd_pcm_substream *sub) { + spin_lock(&dev->spinlock); + if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) dev->sub_playback[sub->number] = sub; else dev->sub_capture[sub->number] = sub; + + spin_unlock(&dev->spinlock); } static void @@ -269,16 +273,22 @@ snd_usb_caiaq_pcm_pointer(struct snd_pcm_substream *sub) { int index = sub->number; struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub); + snd_pcm_uframes_t ptr; + + spin_lock(&dev->spinlock); if (dev->input_panic || dev->output_panic) - return SNDRV_PCM_POS_XRUN; + ptr = SNDRV_PCM_POS_XRUN; if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) - return bytes_to_frames(sub->runtime, + ptr = bytes_to_frames(sub->runtime, dev->audio_out_buf_pos[index]); else - return bytes_to_frames(sub->runtime, + ptr = bytes_to_frames(sub->runtime, dev->audio_in_buf_pos[index]); + + spin_unlock(&dev->spinlock); + return ptr; } /* operators for both playback and capture */ diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c index 83e6c1312d4..a3f02dd9744 100644 --- a/sound/usb/caiaq/device.c +++ b/sound/usb/caiaq/device.c @@ -35,7 +35,7 @@ #include "input.h" MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>"); -MODULE_DESCRIPTION("caiaq USB audio, version 1.3.19"); +MODULE_DESCRIPTION("caiaq USB audio, version 1.3.20"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2}," "{Native Instruments, RigKontrol3}," diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 742a32eee8f..7e190d522cd 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -177,8 +177,7 @@ endif # Include saner warnings here, which can catch bugs: # -EXTRA_WARNINGS := -Wcast-align -EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wformat +EXTRA_WARNINGS := -Wformat EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wformat-security EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wformat-y2k EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wshadow @@ -422,7 +421,11 @@ ifeq ($(uname_S),Darwin) PTHREAD_LIBS = endif -ifneq ($(shell sh -c "(echo '\#include <libelf.h>'; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ_MMAP, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -o /dev/null $(ALL_LDFLAGS) > /dev/null 2>&1 && echo y"), y) +ifeq ($(shell sh -c "(echo '\#include <libelf.h>'; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -o /dev/null $(ALL_LDFLAGS) > /dev/null 2>&1 && echo y"), y) + ifneq ($(shell sh -c "(echo '\#include <libelf.h>'; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ_MMAP, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -o /dev/null $(ALL_LDFLAGS) > /dev/null 2>&1 && echo y"), y) + BASIC_CFLAGS += -DLIBELF_NO_MMAP + endif +else msg := $(error No libelf.h/libelf found, please install libelf-dev/elfutils-libelf-devel and glibc-dev[el]); endif diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 47ea0609a76..226f44a2357 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -413,7 +413,7 @@ static int dso__synthesize_plt_symbols(struct dso *self, int v) if (fd < 0) goto out; - elf = elf_begin(fd, ELF_C_READ_MMAP, NULL); + elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); if (elf == NULL) goto out_close; @@ -533,7 +533,7 @@ static int dso__load_sym(struct dso *self, int fd, const char *name, Elf *elf; int nr = 0, kernel = !strcmp("[kernel]", self->name); - elf = elf_begin(fd, ELF_C_READ_MMAP, NULL); + elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); if (elf == NULL) { if (v) fprintf(stderr, "%s: cannot read %s ELF file.\n", @@ -675,7 +675,7 @@ static char *dso__read_build_id(struct dso *self, int v) if (fd < 0) goto out; - elf = elf_begin(fd, ELF_C_READ_MMAP, NULL); + elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); if (elf == NULL) { if (v) fprintf(stderr, "%s: cannot read %s ELF file.\n", diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 6e849071640..829da9edba6 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -27,6 +27,16 @@ static inline char *bfd_demangle(void __used *v, const char __used *c, #endif #endif +/* + * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP; + * for newer versions we can use mmap to reduce memory usage: + */ +#ifdef LIBELF_NO_MMAP +# define PERF_ELF_C_READ_MMAP ELF_C_READ +#else +# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP +#endif + #ifndef DMGL_PARAMS #define DMGL_PARAMS (1 << 0) /* Include function args */ #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ |