From c41b93fb8551148a93d3bba870365e8489317f02 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 8 Feb 2011 23:41:35 +0100 Subject: ACPI / PM: Drop acpi_restore_state_mem() The function acpi_restore_state_mem() has never been and most likely never will be used, so remove it. Signed-off-by: Rafael J. Wysocki --- arch/x86/include/asm/acpi.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 211ca3f7fd1..47981f0d121 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -112,9 +112,8 @@ static inline void acpi_disable_pci(void) acpi_noirq_set(); } -/* routines for saving/restoring kernel state */ +/* Routine for saving kernel state during suspend. */ extern int acpi_save_state_mem(void); -extern void acpi_restore_state_mem(void); extern unsigned long acpi_wakeup_address; -- cgit v1.2.3-70-g09d2 From f1a2003e22f6b50ea21f7f4b38b38c5ebc9c8017 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 8 Feb 2011 23:42:22 +0100 Subject: ACPI / PM: Merge do_suspend_lowlevel() into acpi_save_state_mem() The function do_suspend_lowlevel() is specific to x86 and defined in assembly code, so it should be called from the x86 low-level suspend code rather than from acpi_suspend_enter(). Merge do_suspend_lowlevel() into the x86's acpi_save_state_mem() and change the name of the latter to acpi_suspend_lowlevel(), so that the function's purpose is better reflected by its name. Signed-off-by: Rafael J. Wysocki --- arch/ia64/include/asm/acpi.h | 4 ++-- arch/ia64/kernel/acpi.c | 9 ++------- arch/x86/include/asm/acpi.h | 4 ++-- arch/x86/kernel/acpi/sleep.c | 5 +++-- arch/x86/kernel/acpi/sleep.h | 2 ++ drivers/acpi/sleep.c | 5 +---- 6 files changed, 12 insertions(+), 17 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h index db3986a71af..a06dfb13d51 100644 --- a/arch/ia64/include/asm/acpi.h +++ b/arch/ia64/include/asm/acpi.h @@ -128,8 +128,8 @@ static inline const char *acpi_get_sysname (void) int acpi_request_vector (u32 int_type); int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); -/* Routine for saving kernel state during suspend. */ -extern int acpi_save_state_mem(void); +/* Low-level suspend routine. */ +extern int acpi_suspend_lowlevel(void); extern unsigned long acpi_wakeup_address; diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 7cf2d10c067..a54d054ed4b 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -1034,13 +1034,8 @@ int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) EXPORT_SYMBOL(acpi_unregister_ioapic); /* - * acpi_save_state_mem() - save kernel state + * acpi_suspend_lowlevel() - save kernel state and suspend. * * TBD when when IA64 starts to support suspend... */ -int acpi_save_state_mem(void) { return 0; } - -/* - * do_suspend_lowlevel() - */ -void do_suspend_lowlevel(void) {} +int acpi_suspend_lowlevel(void) { return 0; } diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 47981f0d121..aa92684aa67 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -112,8 +112,8 @@ static inline void acpi_disable_pci(void) acpi_noirq_set(); } -/* Routine for saving kernel state during suspend. */ -extern int acpi_save_state_mem(void); +/* Low-level suspend routine. */ +extern int acpi_suspend_lowlevel(void); extern unsigned long acpi_wakeup_address; diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index c27a483094b..5f1b747f6ef 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -29,14 +29,14 @@ static char temp_stack[4096]; #endif /** - * acpi_save_state_mem - save kernel state + * acpi_suspend_lowlevel - save kernel state * * Create an identity mapped page table and copy the wakeup routine to * low memory. * * Note that this is too late to change acpi_wakeup_address. */ -int acpi_save_state_mem(void) +int acpi_suspend_lowlevel(void) { struct wakeup_header *header; @@ -107,6 +107,7 @@ int acpi_save_state_mem(void) saved_magic = 0x123456789abcdef0L; #endif /* CONFIG_64BIT */ + do_suspend_lowlevel(); return 0; } diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h index adbcbaa6f1d..31ce13f2029 100644 --- a/arch/x86/kernel/acpi/sleep.h +++ b/arch/x86/kernel/acpi/sleep.h @@ -14,3 +14,5 @@ extern char swsusp_pg_dir[PAGE_SIZE]; extern unsigned long acpi_copy_wakeup_routine(unsigned long); extern void wakeup_long64(void); + +extern void do_suspend_lowlevel(void); diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 2307604064b..0a81bf11f47 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -199,8 +199,6 @@ static void acpi_pm_end(void) #endif /* CONFIG_ACPI_SLEEP */ #ifdef CONFIG_SUSPEND -extern void do_suspend_lowlevel(void); - static u32 acpi_suspend_states[] = { [PM_SUSPEND_ON] = ACPI_STATE_S0, [PM_SUSPEND_STANDBY] = ACPI_STATE_S1, @@ -255,10 +253,9 @@ static int acpi_suspend_enter(suspend_state_t pm_state) break; case ACPI_STATE_S3: - error = acpi_save_state_mem(); + error = acpi_suspend_lowlevel(); if (error) return error; - do_suspend_lowlevel(); pr_info(PREFIX "Low-level resume complete\n"); break; } -- cgit v1.2.3-70-g09d2 From b7ed78f56575074f29ec99d8984f347f6c99c914 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Thu, 10 Mar 2011 11:31:30 -0800 Subject: introduce sys_syncfs to sync a single file system It is frequently useful to sync a single file system, instead of all mounted file systems via sync(2): - On machines with many mounts, it is not at all uncommon for some of them to hang (e.g. unresponsive NFS server). sync(2) will get stuck on those and may never get to the one you do care about (e.g., /). - Some applications write lots of data to the file system and then want to make sure it is flushed to disk. Calling fsync(2) on each file introduces unnecessary ordering constraints that result in a large amount of sub-optimal writeback/flush/commit behavior by the file system. There are currently two ways (that I know of) to sync a single super_block: - BLKFLSBUF ioctl on the block device: That also invalidates the bdev mapping, which isn't usually desirable, and doesn't work for non-block file systems. - 'mount -o remount,rw' will call sync_filesystem as an artifact of the current implemention. Relying on this little-known side effect for something like data safety sounds foolish. Both of these approaches require root privileges, which some applications do not have (nor should they need?) given that sync(2) is an unprivileged operation. This patch introduces a new system call syncfs(2) that takes an fd and syncs only the file system it references. Maybe someday we can $ sync /some/path and not get sync: ignoring all arguments The syscall is motivated by comments by Al and Christoph at the last LSF. syncfs(2) seems like an appropriate name given statfs(2). A similar ioctl was also proposed a while back, see http://marc.info/?l=linux-fsdevel&m=127970513829285&w=2 Signed-off-by: Sage Weil Signed-off-by: Al Viro --- arch/x86/ia32/ia32entry.S | 1 + arch/x86/include/asm/unistd_32.h | 3 ++- arch/x86/include/asm/unistd_64.h | 2 ++ arch/x86/kernel/syscall_table_32.S | 1 + fs/sync.c | 24 ++++++++++++++++++++++++ include/asm-generic/unistd.h | 4 +++- include/linux/syscalls.h | 1 + 7 files changed, 34 insertions(+), 2 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 430312ba6e3..849a9d23c71 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -847,4 +847,5 @@ ia32_sys_call_table: .quad sys_name_to_handle_at .quad compat_sys_open_by_handle_at .quad compat_sys_clock_adjtime + .quad sys_syncfs ia32_syscall_end: diff --git a/arch/x86/include/asm/unistd_32.h b/arch/x86/include/asm/unistd_32.h index ffaf183c619..a755ef5e597 100644 --- a/arch/x86/include/asm/unistd_32.h +++ b/arch/x86/include/asm/unistd_32.h @@ -349,10 +349,11 @@ #define __NR_name_to_handle_at 341 #define __NR_open_by_handle_at 342 #define __NR_clock_adjtime 343 +#define __NR_syncfs 344 #ifdef __KERNEL__ -#define NR_syscalls 344 +#define NR_syscalls 345 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h index 5466bea670e..160fa76bd57 100644 --- a/arch/x86/include/asm/unistd_64.h +++ b/arch/x86/include/asm/unistd_64.h @@ -675,6 +675,8 @@ __SYSCALL(__NR_name_to_handle_at, sys_name_to_handle_at) __SYSCALL(__NR_open_by_handle_at, sys_open_by_handle_at) #define __NR_clock_adjtime 305 __SYSCALL(__NR_clock_adjtime, sys_clock_adjtime) +#define __NR_syncfs 306 +__SYSCALL(__NR_syncfs, sys_syncfs) #ifndef __NO_STUBS #define __ARCH_WANT_OLD_READDIR diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index 5f181742e8f..abce34d5c79 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -343,3 +343,4 @@ ENTRY(sys_call_table) .long sys_name_to_handle_at .long sys_open_by_handle_at .long sys_clock_adjtime + .long sys_syncfs diff --git a/fs/sync.c b/fs/sync.c index ba76b9623e7..92ca208777d 100644 --- a/fs/sync.c +++ b/fs/sync.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -128,6 +129,29 @@ void emergency_sync(void) } } +/* + * sync a single super + */ +SYSCALL_DEFINE1(syncfs, int, fd) +{ + struct file *file; + struct super_block *sb; + int ret; + int fput_needed; + + file = fget_light(fd, &fput_needed); + if (!file) + return -EBADF; + sb = file->f_dentry->d_sb; + + down_read(&sb->s_umount); + ret = sync_filesystem(sb); + up_read(&sb->s_umount); + + fput_light(file, fput_needed); + return ret; +} + /** * vfs_fsync_range - helper to sync a range of data & metadata to disk * @file: file to sync diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h index d94f447c667..176b825add5 100644 --- a/include/asm-generic/unistd.h +++ b/include/asm-generic/unistd.h @@ -652,9 +652,11 @@ __SYSCALL(__NR_name_to_handle_at, sys_name_to_handle_at) __SYSCALL(__NR_open_by_handle_at, sys_open_by_handle_at) #define __NR_clock_adjtime 266 __SYSCALL(__NR_clock_adjtime, sys_clock_adjtime) +#define __NR_syncfs 264 +__SYSCALL(__NR_syncfs, sys_syncfs) #undef __NR_syscalls -#define __NR_syscalls 267 +#define __NR_syscalls 268 /* * All syscalls below here should go away really, diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 1f5c18e6f4f..83ecc1749ef 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -825,6 +825,7 @@ asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, u64 mask, int fd, const char __user *pathname); +asmlinkage long sys_syncfs(int fd); int kernel_execve(const char *filename, const char *const argv[], const char *const envp[]); -- cgit v1.2.3-70-g09d2 From b6a84016bd2598e35ead635147fa53619982648d Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 22 Mar 2011 16:30:42 -0700 Subject: mm: NUMA aware alloc_thread_info_node() Add a node parameter to alloc_thread_info(), and change its name to alloc_thread_info_node() This change is needed to allow NUMA aware kthread_create_on_cpu() Signed-off-by: Eric Dumazet Acked-by: David S. Miller Reviewed-by: Andi Kleen Acked-by: Rusty Russell Cc: Tejun Heo Cc: Tony Luck Cc: Fenghua Yu Cc: David Howells Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/cris/include/asm/thread_info.h | 2 +- arch/frv/include/asm/thread_info.h | 13 ++++--------- arch/ia64/include/asm/thread_info.h | 5 +++-- arch/m32r/include/asm/thread_info.h | 13 ++++--------- arch/mips/include/asm/thread_info.h | 6 ++++-- arch/mn10300/include/asm/thread_info.h | 6 ++++-- arch/powerpc/include/asm/thread_info.h | 2 +- arch/powerpc/kernel/process.c | 4 ++-- arch/score/include/asm/thread_info.h | 2 +- arch/sh/include/asm/thread_info.h | 2 +- arch/sh/kernel/process.c | 16 +++++++++------- arch/sparc/include/asm/thread_info_32.h | 6 +++--- arch/sparc/include/asm/thread_info_64.h | 24 ++++++++++++------------ arch/sparc/mm/srmmu.c | 4 ++-- arch/sparc/mm/sun4c.c | 4 ++-- arch/tile/include/asm/thread_info.h | 2 +- arch/tile/kernel/process.c | 4 ++-- arch/x86/include/asm/thread_info.h | 10 ++++++++-- kernel/fork.c | 9 ++++++--- 19 files changed, 70 insertions(+), 64 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h index 91776069ca8..29b74a10583 100644 --- a/arch/cris/include/asm/thread_info.h +++ b/arch/cris/include/asm/thread_info.h @@ -68,7 +68,7 @@ struct thread_info { #define init_thread_info (init_thread_union.thread_info) /* thread information allocation */ -#define alloc_thread_info(tsk) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) +#define alloc_thread_info(tsk, node) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) #define free_thread_info(ti) free_pages((unsigned long) (ti), 1) #endif /* !__ASSEMBLY__ */ diff --git a/arch/frv/include/asm/thread_info.h b/arch/frv/include/asm/thread_info.h index 11f33ead29b..8582e9c7531 100644 --- a/arch/frv/include/asm/thread_info.h +++ b/arch/frv/include/asm/thread_info.h @@ -84,16 +84,11 @@ register struct thread_info *__current_thread_info asm("gr15"); /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) \ - ({ \ - struct thread_info *ret; \ - \ - ret = kzalloc(THREAD_SIZE, GFP_KERNEL); \ - \ - ret; \ - }) +#define alloc_thread_info_node(tsk, node) \ + kzalloc_node(THREAD_SIZE, GFP_KERNEL, node) #else -#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL) +#define alloc_thread_info_node(tsk) \ + kmalloc_node(THREAD_SIZE, GFP_KERNEL, node) #endif #define free_thread_info(info) kfree(info) diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h index 342004bbefe..6392908e8f9 100644 --- a/arch/ia64/include/asm/thread_info.h +++ b/arch/ia64/include/asm/thread_info.h @@ -59,11 +59,12 @@ struct thread_info { #ifndef ASM_OFFSETS_C /* how to get the thread information struct from C */ #define current_thread_info() ((struct thread_info *) ((char *) current + IA64_TASK_SIZE)) -#define alloc_thread_info(tsk) ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE)) +#define alloc_thread_info_node(tsk, node) \ + ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE)) #define task_thread_info(tsk) ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE)) #else #define current_thread_info() ((struct thread_info *) 0) -#define alloc_thread_info(tsk) ((struct thread_info *) 0) +#define alloc_thread_info_node(tsk, node) ((struct thread_info *) 0) #define task_thread_info(tsk) ((struct thread_info *) 0) #endif #define free_thread_info(ti) /* nothing */ diff --git a/arch/m32r/include/asm/thread_info.h b/arch/m32r/include/asm/thread_info.h index 71faff5bcc2..0227dba4406 100644 --- a/arch/m32r/include/asm/thread_info.h +++ b/arch/m32r/include/asm/thread_info.h @@ -96,16 +96,11 @@ static inline struct thread_info *current_thread_info(void) /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) \ - ({ \ - struct thread_info *ret; \ - \ - ret = kzalloc(THREAD_SIZE, GFP_KERNEL); \ - \ - ret; \ - }) +#define alloc_thread_info_node(tsk, node) \ + kzalloc_node(THREAD_SIZE, GFP_KERNEL, node) #else -#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL) +#define alloc_thread_info_node(tsk, node) \ + kmalloc_node(THREAD_SIZE, GFP_KERNEL, node) #endif #define free_thread_info(info) kfree(info) diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h index d309556cacf..d71160de4d1 100644 --- a/arch/mips/include/asm/thread_info.h +++ b/arch/mips/include/asm/thread_info.h @@ -88,9 +88,11 @@ register struct thread_info *__current_thread_info __asm__("$28"); #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR #ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) kzalloc(THREAD_SIZE, GFP_KERNEL) +#define alloc_thread_info_node(tsk, node) \ + kzalloc_node(THREAD_SIZE, GFP_KERNEL, node) #else -#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL) +#define alloc_thread_info_node(tsk, node) \ + kmalloc_node(THREAD_SIZE, GFP_KERNEL, node) #endif #define free_thread_info(info) kfree(info) diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h index aa07a4a5d79..8d53f09c878 100644 --- a/arch/mn10300/include/asm/thread_info.h +++ b/arch/mn10300/include/asm/thread_info.h @@ -124,9 +124,11 @@ static inline unsigned long current_stack_pointer(void) /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) kzalloc(THREAD_SIZE, GFP_KERNEL) +#define alloc_thread_info_node(tsk, node) \ + kzalloc_node(THREAD_SIZE, GFP_KERNEL, node) #else -#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL) +#define alloc_thread_info_node(tsk, node) \ + kmalloc_node(THREAD_SIZE, GFP_KERNEL, node) #endif #define free_thread_info(ti) kfree((ti)) diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index 65eb85976a0..d8529ef13b2 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -72,7 +72,7 @@ struct thread_info { #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR -extern struct thread_info *alloc_thread_info(struct task_struct *tsk); +extern struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node); extern void free_thread_info(struct thread_info *ti); #endif /* THREAD_SHIFT < PAGE_SHIFT */ diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 8303a6c65ef..f74f355a961 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1218,11 +1218,11 @@ void __ppc64_runlatch_off(void) static struct kmem_cache *thread_info_cache; -struct thread_info *alloc_thread_info(struct task_struct *tsk) +struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node) { struct thread_info *ti; - ti = kmem_cache_alloc(thread_info_cache, GFP_KERNEL); + ti = kmem_cache_alloc_node(thread_info_cache, GFP_KERNEL, node); if (unlikely(ti == NULL)) return NULL; #ifdef CONFIG_DEBUG_STACK_USAGE diff --git a/arch/score/include/asm/thread_info.h b/arch/score/include/asm/thread_info.h index 8570d08f58c..2205c62284d 100644 --- a/arch/score/include/asm/thread_info.h +++ b/arch/score/include/asm/thread_info.h @@ -71,7 +71,7 @@ struct thread_info { register struct thread_info *__current_thread_info __asm__("r28"); #define current_thread_info() __current_thread_info -#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL) +#define alloc_thread_info_node(tsk, node) kmalloc_node(THREAD_SIZE, GFP_KERNEL, node) #define free_thread_info(info) kfree(info) #endif /* !__ASSEMBLY__ */ diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h index c228946926e..ea2d5089de1 100644 --- a/arch/sh/include/asm/thread_info.h +++ b/arch/sh/include/asm/thread_info.h @@ -95,7 +95,7 @@ static inline struct thread_info *current_thread_info(void) #endif -extern struct thread_info *alloc_thread_info(struct task_struct *tsk); +extern struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node); extern void free_thread_info(struct thread_info *ti); extern void arch_task_cache_init(void); #define arch_task_cache_init arch_task_cache_init diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index dcb126dc76f..f39ad57296b 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -32,16 +32,16 @@ void free_thread_xstate(struct task_struct *tsk) #if THREAD_SHIFT < PAGE_SHIFT static struct kmem_cache *thread_info_cache; -struct thread_info *alloc_thread_info(struct task_struct *tsk) +struct thread_info *alloc_thread_info(struct task_struct *tsk, int node) { struct thread_info *ti; - - ti = kmem_cache_alloc(thread_info_cache, GFP_KERNEL); - if (unlikely(ti == NULL)) - return NULL; #ifdef CONFIG_DEBUG_STACK_USAGE - memset(ti, 0, THREAD_SIZE); + gfp_t mask = GFP_KERNEL | __GFP_ZERO; +#else + gfp_t mask = GFP_KERNEL; #endif + + ti = kmem_cache_alloc_node(thread_info_cache, mask, node); return ti; } @@ -64,7 +64,9 @@ struct thread_info *alloc_thread_info(struct task_struct *tsk) #else gfp_t mask = GFP_KERNEL; #endif - return (struct thread_info *)__get_free_pages(mask, THREAD_SIZE_ORDER); + struct page *page = alloc_pages_node(node, mask, THREAD_SIZE_ORDER); + + return page ? page_address(page) : NULL; } void free_thread_info(struct thread_info *ti) diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h index 9dd0318d3dd..fa575323341 100644 --- a/arch/sparc/include/asm/thread_info_32.h +++ b/arch/sparc/include/asm/thread_info_32.h @@ -82,8 +82,8 @@ register struct thread_info *current_thread_info_reg asm("g6"); #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR -BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info, void) -#define alloc_thread_info(tsk) BTFIXUP_CALL(alloc_thread_info)() +BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info_node, int) +#define alloc_thread_info_node(tsk, node) BTFIXUP_CALL(alloc_thread_info_node)(node) BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *) #define free_thread_info(ti) BTFIXUP_CALL(free_thread_info)(ti) @@ -92,7 +92,7 @@ BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *) /* * Size of kernel stack for each process. - * Observe the order of get_free_pages() in alloc_thread_info(). + * Observe the order of get_free_pages() in alloc_thread_info_node(). * The sun4 has 8K stack too, because it's short on memory, and 16K is a waste. */ #define THREAD_SIZE 8192 diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h index fb2ea7705a4..60d86be1a53 100644 --- a/arch/sparc/include/asm/thread_info_64.h +++ b/arch/sparc/include/asm/thread_info_64.h @@ -146,21 +146,21 @@ register struct thread_info *current_thread_info_reg asm("g6"); #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR #ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) \ -({ \ - struct thread_info *ret; \ - \ - ret = (struct thread_info *) \ - __get_free_pages(GFP_KERNEL, __THREAD_INFO_ORDER); \ - if (ret) \ - memset(ret, 0, PAGE_SIZE<<__THREAD_INFO_ORDER); \ - ret; \ -}) +#define THREAD_FLAGS (GFP_KERNEL | __GFP_ZERO) #else -#define alloc_thread_info(tsk) \ - ((struct thread_info *)__get_free_pages(GFP_KERNEL, __THREAD_INFO_ORDER)) +#define THREAD_FLAGS (GFP_KERNEL) #endif +#define alloc_thread_info_node(tsk, node) \ +({ \ + struct page *page = alloc_pages_node(node, THREAD_FLAGS, \ + __THREAD_INFO_ORDER); \ + struct thread_info *ret; \ + \ + ret = page ? page_address(page) : NULL; \ + ret; \ +}) + #define free_thread_info(ti) \ free_pages((unsigned long)(ti),__THREAD_INFO_ORDER) diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 92319aa8b66..fe09fd8be69 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -650,7 +650,7 @@ static void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len) * mappings on the kernel stack without any special code as we did * need on the sun4c. */ -static struct thread_info *srmmu_alloc_thread_info(void) +static struct thread_info *srmmu_alloc_thread_info_node(int node) { struct thread_info *ret; @@ -2271,7 +2271,7 @@ void __init ld_mmu_srmmu(void) BTFIXUPSET_CALL(mmu_info, srmmu_mmu_info, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(alloc_thread_info, srmmu_alloc_thread_info, BTFIXUPCALL_NORM); + BTFIXUPSET_CALL(alloc_thread_info_node, srmmu_alloc_thread_info_node, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(free_thread_info, srmmu_free_thread_info, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(pte_to_pgoff, srmmu_pte_to_pgoff, BTFIXUPCALL_NORM); diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c index b5137cc2aba..a2350b5e68a 100644 --- a/arch/sparc/mm/sun4c.c +++ b/arch/sparc/mm/sun4c.c @@ -922,7 +922,7 @@ static inline void garbage_collect(int entry) free_locked_segment(BUCKET_ADDR(entry)); } -static struct thread_info *sun4c_alloc_thread_info(void) +static struct thread_info *sun4c_alloc_thread_info_node(int node) { unsigned long addr, pages; int entry; @@ -2155,7 +2155,7 @@ void __init ld_mmu_sun4c(void) BTFIXUPSET_CALL(__swp_offset, sun4c_swp_offset, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(__swp_entry, sun4c_swp_entry, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(alloc_thread_info, sun4c_alloc_thread_info, BTFIXUPCALL_NORM); + BTFIXUPSET_CALL(alloc_thread_info_node, sun4c_alloc_thread_info_node, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(free_thread_info, sun4c_free_thread_info, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(mmu_info, sun4c_mmu_info, BTFIXUPCALL_NORM); diff --git a/arch/tile/include/asm/thread_info.h b/arch/tile/include/asm/thread_info.h index 9e8e9c4dfa2..3405b52853b 100644 --- a/arch/tile/include/asm/thread_info.h +++ b/arch/tile/include/asm/thread_info.h @@ -84,7 +84,7 @@ register unsigned long stack_pointer __asm__("sp"); ((struct thread_info *)(stack_pointer & -THREAD_SIZE)) #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR -extern struct thread_info *alloc_thread_info(struct task_struct *task); +extern struct thread_info *alloc_thread_info_node(struct task_struct *task, int node); extern void free_thread_info(struct thread_info *info); /* Sit on a nap instruction until interrupted. */ diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index b9cd962e1d3..d0065103eb7 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -109,7 +109,7 @@ void cpu_idle(void) } } -struct thread_info *alloc_thread_info(struct task_struct *task) +struct thread_info *alloc_thread_info_node(struct task_struct *task, int node) { struct page *page; gfp_t flags = GFP_KERNEL; @@ -118,7 +118,7 @@ struct thread_info *alloc_thread_info(struct task_struct *task) flags |= __GFP_ZERO; #endif - page = alloc_pages(flags, THREAD_SIZE_ORDER); + page = alloc_pages_node(node, flags, THREAD_SIZE_ORDER); if (!page) return NULL; diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index f0b6e5dbc5a..1f2e61e2898 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -161,8 +161,14 @@ struct thread_info { #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR -#define alloc_thread_info(tsk) \ - ((struct thread_info *)__get_free_pages(THREAD_FLAGS, THREAD_ORDER)) +#define alloc_thread_info_node(tsk, node) \ +({ \ + struct page *page = alloc_pages_node(node, THREAD_FLAGS, \ + THREAD_ORDER); \ + struct thread_info *ret = page ? page_address(page) : NULL; \ + \ + ret; \ +}) #ifdef CONFIG_X86_32 diff --git a/kernel/fork.c b/kernel/fork.c index cffbe8a4e1f..cbc6adc6e89 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -117,14 +117,17 @@ static struct kmem_cache *task_struct_cachep; #endif #ifndef __HAVE_ARCH_THREAD_INFO_ALLOCATOR -static inline struct thread_info *alloc_thread_info(struct task_struct *tsk) +static struct thread_info *alloc_thread_info_node(struct task_struct *tsk, + int node) { #ifdef CONFIG_DEBUG_STACK_USAGE gfp_t mask = GFP_KERNEL | __GFP_ZERO; #else gfp_t mask = GFP_KERNEL; #endif - return (struct thread_info *)__get_free_pages(mask, THREAD_SIZE_ORDER); + struct page *page = alloc_pages_node(node, mask, THREAD_SIZE_ORDER); + + return page ? page_address(page) : NULL; } static inline void free_thread_info(struct thread_info *ti) @@ -260,7 +263,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig) if (!tsk) return NULL; - ti = alloc_thread_info(tsk); + ti = alloc_thread_info_node(tsk, node); if (!ti) { free_task_struct(tsk); return NULL; -- cgit v1.2.3-70-g09d2 From 3e50594e8e72932ad4cfcb0b3cbdf58fc3bce416 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 22 Mar 2011 16:33:50 -0700 Subject: add the common dma_addr_t typedef to include/linux/types.h All architectures can use the common dma_addr_t typedef now. We can remove the arch specific dma_addr_t. Signed-off-by: FUJITA Tomonori Acked-by: Arnd Bergmann Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Ivan Kokshaysky Cc: Richard Henderson Cc: Matt Turner Cc: "Luck, Tony" Cc: Ralf Baechle Cc: Benjamin Herrenschmidt Cc: Heiko Carstens Cc: Martin Schwidefsky Cc: Chris Metcalf Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/types.h | 1 - arch/arm/include/asm/types.h | 3 --- arch/avr32/include/asm/types.h | 8 -------- arch/cris/include/asm/types.h | 3 --- arch/frv/include/asm/types.h | 8 -------- arch/h8300/include/asm/types.h | 4 ---- arch/ia64/include/asm/types.h | 3 --- arch/m32r/include/asm/types.h | 3 --- arch/m68k/include/asm/types.h | 3 --- arch/mips/include/asm/types.h | 6 ------ arch/mn10300/include/asm/types.h | 7 ------- arch/parisc/include/asm/types.h | 3 --- arch/powerpc/include/asm/types.h | 5 ----- arch/s390/include/asm/types.h | 6 ------ arch/sparc/include/asm/types.h | 4 ---- arch/x86/include/asm/types.h | 8 -------- arch/xtensa/include/asm/types.h | 4 ---- include/asm-generic/types.h | 27 --------------------------- include/linux/types.h | 6 ++++++ 19 files changed, 6 insertions(+), 106 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/alpha/include/asm/types.h b/arch/alpha/include/asm/types.h index bd621ecd1eb..e46e50382d2 100644 --- a/arch/alpha/include/asm/types.h +++ b/arch/alpha/include/asm/types.h @@ -27,7 +27,6 @@ typedef unsigned int umode_t; #ifdef __KERNEL__ #ifndef __ASSEMBLY__ -typedef u64 dma_addr_t; typedef u64 dma64_addr_t; #endif /* __ASSEMBLY__ */ diff --git a/arch/arm/include/asm/types.h b/arch/arm/include/asm/types.h index 345df01534a..c684e3769f4 100644 --- a/arch/arm/include/asm/types.h +++ b/arch/arm/include/asm/types.h @@ -18,9 +18,6 @@ typedef unsigned short umode_t; #ifndef __ASSEMBLY__ -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; typedef u32 dma64_addr_t; #endif /* __ASSEMBLY__ */ diff --git a/arch/avr32/include/asm/types.h b/arch/avr32/include/asm/types.h index 9cefda6f534..72667a3b1af 100644 --- a/arch/avr32/include/asm/types.h +++ b/arch/avr32/include/asm/types.h @@ -23,14 +23,6 @@ typedef unsigned short umode_t; #define BITS_PER_LONG 32 -#ifndef __ASSEMBLY__ - -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; - -#endif /* __ASSEMBLY__ */ - #endif /* __KERNEL__ */ diff --git a/arch/cris/include/asm/types.h b/arch/cris/include/asm/types.h index 5790262cbe8..44055087c93 100644 --- a/arch/cris/include/asm/types.h +++ b/arch/cris/include/asm/types.h @@ -18,9 +18,6 @@ typedef unsigned short umode_t; #ifndef __ASSEMBLY__ -/* Dma addresses are 32-bits wide, just like our other addresses. */ - -typedef u32 dma_addr_t; typedef u32 dma64_addr_t; #endif /* __ASSEMBLY__ */ diff --git a/arch/frv/include/asm/types.h b/arch/frv/include/asm/types.h index 613bf1e962f..aa3e7fdc7f2 100644 --- a/arch/frv/include/asm/types.h +++ b/arch/frv/include/asm/types.h @@ -27,14 +27,6 @@ typedef unsigned short umode_t; #define BITS_PER_LONG 32 -#ifndef __ASSEMBLY__ - -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; - -#endif /* __ASSEMBLY__ */ - #endif /* __KERNEL__ */ #endif /* _ASM_TYPES_H */ diff --git a/arch/h8300/include/asm/types.h b/arch/h8300/include/asm/types.h index 12875190b15..bb2c91a3522 100644 --- a/arch/h8300/include/asm/types.h +++ b/arch/h8300/include/asm/types.h @@ -22,10 +22,6 @@ typedef unsigned short umode_t; #define BITS_PER_LONG 32 -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; - #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ diff --git a/arch/ia64/include/asm/types.h b/arch/ia64/include/asm/types.h index 93773fd37be..82b3939d271 100644 --- a/arch/ia64/include/asm/types.h +++ b/arch/ia64/include/asm/types.h @@ -40,9 +40,6 @@ struct fnptr { unsigned long gp; }; -/* DMA addresses are 64-bits wide, in general. */ -typedef u64 dma_addr_t; - # endif /* __KERNEL__ */ #endif /* !__ASSEMBLY__ */ diff --git a/arch/m32r/include/asm/types.h b/arch/m32r/include/asm/types.h index bc9f7fff0ac..fd84b4898e3 100644 --- a/arch/m32r/include/asm/types.h +++ b/arch/m32r/include/asm/types.h @@ -18,9 +18,6 @@ typedef unsigned short umode_t; #ifndef __ASSEMBLY__ -/* DMA addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; typedef u64 dma64_addr_t; #endif /* __ASSEMBLY__ */ diff --git a/arch/m68k/include/asm/types.h b/arch/m68k/include/asm/types.h index 6441cb5f8e7..10ad92f1c17 100644 --- a/arch/m68k/include/asm/types.h +++ b/arch/m68k/include/asm/types.h @@ -25,9 +25,6 @@ typedef unsigned short umode_t; #ifndef __ASSEMBLY__ -/* DMA addresses are always 32-bits wide */ - -typedef u32 dma_addr_t; typedef u32 dma64_addr_t; #endif /* __ASSEMBLY__ */ diff --git a/arch/mips/include/asm/types.h b/arch/mips/include/asm/types.h index 544a2854598..9520dc89498 100644 --- a/arch/mips/include/asm/types.h +++ b/arch/mips/include/asm/types.h @@ -33,12 +33,6 @@ typedef unsigned short umode_t; #ifdef __KERNEL__ #ifndef __ASSEMBLY__ -#if (defined(CONFIG_HIGHMEM) && defined(CONFIG_64BIT_PHYS_ADDR)) \ - || defined(CONFIG_64BIT) -typedef u64 dma_addr_t; -#else -typedef u32 dma_addr_t; -#endif typedef u64 dma64_addr_t; /* diff --git a/arch/mn10300/include/asm/types.h b/arch/mn10300/include/asm/types.h index 7b9f01042fd..c1833eb192e 100644 --- a/arch/mn10300/include/asm/types.h +++ b/arch/mn10300/include/asm/types.h @@ -26,13 +26,6 @@ typedef unsigned short umode_t; #define BITS_PER_LONG 32 -#ifndef __ASSEMBLY__ - -/* Dma addresses are 32-bits wide. */ -typedef u32 dma_addr_t; - -#endif /* __ASSEMBLY__ */ - #endif /* __KERNEL__ */ #endif /* _ASM_TYPES_H */ diff --git a/arch/parisc/include/asm/types.h b/arch/parisc/include/asm/types.h index 20135cc8003..bc164ddffb7 100644 --- a/arch/parisc/include/asm/types.h +++ b/arch/parisc/include/asm/types.h @@ -16,9 +16,6 @@ typedef unsigned short umode_t; #ifndef __ASSEMBLY__ -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; typedef u64 dma64_addr_t; #endif /* __ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/types.h b/arch/powerpc/include/asm/types.h index a5aea0ca34e..e16a6b2d96f 100644 --- a/arch/powerpc/include/asm/types.h +++ b/arch/powerpc/include/asm/types.h @@ -44,11 +44,6 @@ typedef struct { typedef __vector128 vector128; -#if defined(__powerpc64__) || defined(CONFIG_PHYS_64BIT) -typedef u64 dma_addr_t; -#else -typedef u32 dma_addr_t; -#endif typedef u64 dma64_addr_t; typedef struct { diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h index 04d6b95a89c..f7f6ae6bed8 100644 --- a/arch/s390/include/asm/types.h +++ b/arch/s390/include/asm/types.h @@ -31,12 +31,6 @@ typedef __signed__ long saddr_t; #ifndef __ASSEMBLY__ typedef u64 dma64_addr_t; -#ifdef __s390x__ -/* DMA addresses come in 32-bit and 64-bit flavours. */ -typedef u64 dma_addr_t; -#else -typedef u32 dma_addr_t; -#endif #ifndef __s390x__ typedef union { diff --git a/arch/sparc/include/asm/types.h b/arch/sparc/include/asm/types.h index 09c79a9c851..f02d330cb9f 100644 --- a/arch/sparc/include/asm/types.h +++ b/arch/sparc/include/asm/types.h @@ -22,10 +22,6 @@ typedef unsigned short umode_t; #ifndef __ASSEMBLY__ -/* Dma addresses come in generic and 64-bit flavours. */ - -typedef u32 dma_addr_t; - #if defined(__arch64__) /*** SPARC 64 bit ***/ diff --git a/arch/x86/include/asm/types.h b/arch/x86/include/asm/types.h index df1da20f453..88102055a4b 100644 --- a/arch/x86/include/asm/types.h +++ b/arch/x86/include/asm/types.h @@ -1,20 +1,12 @@ #ifndef _ASM_X86_TYPES_H #define _ASM_X86_TYPES_H -#define dma_addr_t dma_addr_t - #include #ifdef __KERNEL__ #ifndef __ASSEMBLY__ typedef u64 dma64_addr_t; -#if defined(CONFIG_X86_64) || defined(CONFIG_HIGHMEM64G) -/* DMA addresses come in 32-bit and 64-bit flavours. */ -typedef u64 dma_addr_t; -#else -typedef u32 dma_addr_t; -#endif #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ diff --git a/arch/xtensa/include/asm/types.h b/arch/xtensa/include/asm/types.h index c89569a8da0..b1c981e39b5 100644 --- a/arch/xtensa/include/asm/types.h +++ b/arch/xtensa/include/asm/types.h @@ -32,10 +32,6 @@ typedef unsigned short umode_t; #define BITS_PER_LONG 32 -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; - #endif /* __KERNEL__ */ #endif diff --git a/include/asm-generic/types.h b/include/asm-generic/types.h index fba7d33ca3f..7a0f69e6c61 100644 --- a/include/asm-generic/types.h +++ b/include/asm-generic/types.h @@ -12,31 +12,4 @@ typedef unsigned short umode_t; #endif /* __ASSEMBLY__ */ -/* - * These aren't exported outside the kernel to avoid name space clashes - */ -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ -/* - * DMA addresses may be very different from physical addresses - * and pointers. i386 and powerpc may have 64 bit DMA on 32 bit - * systems, while sparc64 uses 32 bit DMA addresses for 64 bit - * physical addresses. - * This default defines dma_addr_t to have the same size as - * phys_addr_t, which is the most common way. - * Do not define the dma64_addr_t type, which never really - * worked. - */ -#ifndef dma_addr_t -#ifdef CONFIG_PHYS_ADDR_T_64BIT -typedef u64 dma_addr_t; -#else -typedef u32 dma_addr_t; -#endif /* CONFIG_PHYS_ADDR_T_64BIT */ -#endif /* dma_addr_t */ - -#endif /* __ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - #endif /* _ASM_GENERIC_TYPES_H */ diff --git a/include/linux/types.h b/include/linux/types.h index c2a9eb44f2f..176da8c1fbb 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -150,6 +150,12 @@ typedef unsigned long blkcnt_t; #define pgoff_t unsigned long #endif +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT +typedef u64 dma_addr_t; +#else +typedef u32 dma_addr_t; +#endif /* dma_addr_t */ + #endif /* __KERNEL__ */ /* -- cgit v1.2.3-70-g09d2 From 1c00f0161f5e5bf1a441ea834c923f4102456489 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Tue, 22 Mar 2011 16:34:59 -0700 Subject: x86: allow CONFIG_ISA_DMA_API to be disabled Not all 64-bit systems require ISA-style DMA, so allow it to be configurable. x86 utilizes the generic ISA DMA allocator from kernel/dma.c, so require it only when CONFIG_ISA_DMA_API is enabled. Disabling CONFIG_ISA_DMA_API is dependent on x86_64 since those machines do not have ISA slots and benefit the most from disabling the option (and on CONFIG_EXPERT as required by H. Peter Anvin). When disabled, this also avoids declaring claim_dma_lock(), release_dma_lock(), request_dma(), and free_dma() since those interfaces will no longer be provided. Signed-off-by: David Rientjes Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: Thomas Gleixner Cc: Bjorn Helgaas Cc: Russell King Cc: "Luck, Tony" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/Kconfig | 10 +++++++--- arch/x86/include/asm/dma.h | 6 +++++- 2 files changed, 12 insertions(+), 4 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 720206f46d0..d57ddd7573c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -123,7 +123,7 @@ config NEED_SG_DMA_LENGTH def_bool y config GENERIC_ISA_DMA - def_bool y + def_bool ISA_DMA_API config GENERIC_IOMAP def_bool y @@ -2002,9 +2002,13 @@ source "drivers/pci/pcie/Kconfig" source "drivers/pci/Kconfig" -# x86_64 have no ISA slots, but do have ISA-style DMA. +# x86_64 have no ISA slots, but can have ISA-style DMA. config ISA_DMA_API - def_bool y + bool "ISA-style DMA support" if (X86_64 && EXPERT) + default y + help + Enables ISA-style DMA support for devices requiring such controllers. + If unsure, say Y. if X86_32 diff --git a/arch/x86/include/asm/dma.h b/arch/x86/include/asm/dma.h index ca1098a7e58..97b6d8114a4 100644 --- a/arch/x86/include/asm/dma.h +++ b/arch/x86/include/asm/dma.h @@ -151,6 +151,7 @@ #define DMA_AUTOINIT 0x10 +#ifdef CONFIG_ISA_DMA_API extern spinlock_t dma_spin_lock; static inline unsigned long claim_dma_lock(void) @@ -164,6 +165,7 @@ static inline void release_dma_lock(unsigned long flags) { spin_unlock_irqrestore(&dma_spin_lock, flags); } +#endif /* CONFIG_ISA_DMA_API */ /* enable/disable a specific DMA channel */ static inline void enable_dma(unsigned int dmanr) @@ -303,9 +305,11 @@ static inline int get_dma_residue(unsigned int dmanr) } -/* These are in kernel/dma.c: */ +/* These are in kernel/dma.c because x86 uses CONFIG_GENERIC_ISA_DMA */ +#ifdef CONFIG_ISA_DMA_API extern int request_dma(unsigned int dmanr, const char *device_id); extern void free_dma(unsigned int dmanr); +#endif /* From PCI */ -- cgit v1.2.3-70-g09d2 From c2ef45df3b98a027ec8f9081bd2a19dff520ef9d Mon Sep 17 00:00:00 2001 From: Stephen Wilson Date: Sun, 13 Mar 2011 15:49:13 -0400 Subject: x86: add context tag to mark mm when running a task in 32-bit compatibility mode This tag is intended to mirror the thread info TIF_IA32 flag. Will be used to identify mm's which support 32 bit tasks running in compatibility mode without requiring a reference to the task itself. Signed-off-by: Stephen Wilson Reviewed-by: Michel Lespinasse Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Signed-off-by: Al Viro --- arch/x86/include/asm/mmu.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h index 80a1dee5bea..aeff3e89b22 100644 --- a/arch/x86/include/asm/mmu.h +++ b/arch/x86/include/asm/mmu.h @@ -13,6 +13,12 @@ typedef struct { int size; struct mutex lock; void *vdso; + +#ifdef CONFIG_X86_64 + /* True if mm supports a task running in 32 bit compatibility mode. */ + unsigned short ia32_compat; +#endif + } mm_context_t; #ifdef CONFIG_SMP -- cgit v1.2.3-70-g09d2 From 861b5ae7cde96ca081914e21dedfa7e8a38da622 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 23 Mar 2011 16:42:02 -0700 Subject: bitops: introduce little-endian bitops for most architectures Introduce little-endian bit operations to the big-endian architectures which do not have native little-endian bit operations and the little-endian architectures. (alpha, avr32, blackfin, cris, frv, h8300, ia64, m32r, mips, mn10300, parisc, sh, sparc, tile, x86, xtensa) These architectures can just include generic implementation (asm-generic/bitops/le.h). Signed-off-by: Akinobu Mita Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Mikael Starvik Cc: David Howells Cc: Yoshinori Sato Cc: "Luck, Tony" Cc: Ralf Baechle Cc: Kyle McMartin Cc: Matthew Wilcox Cc: Grant Grundler Cc: Paul Mundt Cc: Kazumoto Kojima Cc: Hirokazu Takata Cc: "David S. Miller" Cc: Chris Zankel Cc: Ingo Molnar Cc: Thomas Gleixner Acked-by: Hans-Christian Egtvedt Acked-by: "H. Peter Anvin" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/bitops.h | 1 + arch/avr32/include/asm/bitops.h | 1 + arch/blackfin/include/asm/bitops.h | 1 + arch/cris/include/asm/bitops.h | 1 + arch/frv/include/asm/bitops.h | 1 + arch/h8300/include/asm/bitops.h | 1 + arch/ia64/include/asm/bitops.h | 1 + arch/m32r/include/asm/bitops.h | 1 + arch/mips/include/asm/bitops.h | 1 + arch/mn10300/include/asm/bitops.h | 1 + arch/parisc/include/asm/bitops.h | 1 + arch/sh/include/asm/bitops.h | 1 + arch/sparc/include/asm/bitops_32.h | 1 + arch/sparc/include/asm/bitops_64.h | 1 + arch/tile/include/asm/bitops.h | 1 + arch/x86/include/asm/bitops.h | 1 + arch/xtensa/include/asm/bitops.h | 1 + include/asm-generic/bitops.h | 1 + include/asm-generic/bitops/ext2-non-atomic.h | 2 -- include/asm-generic/bitops/minix-le.h | 2 -- 20 files changed, 18 insertions(+), 4 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h index adfab8a21df..955fec7cfeb 100644 --- a/arch/alpha/include/asm/bitops.h +++ b/arch/alpha/include/asm/bitops.h @@ -454,6 +454,7 @@ sched_find_first_bit(const unsigned long b[2]) return __ffs(tmp) + ofs; } +#include #include #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) diff --git a/arch/avr32/include/asm/bitops.h b/arch/avr32/include/asm/bitops.h index f7dd5f71edf..1c482fc9da7 100644 --- a/arch/avr32/include/asm/bitops.h +++ b/arch/avr32/include/asm/bitops.h @@ -299,6 +299,7 @@ static inline int ffs(unsigned long word) #include #include +#include #include #include #include diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h index 29f4fd88617..fe257cfec97 100644 --- a/arch/blackfin/include/asm/bitops.h +++ b/arch/blackfin/include/asm/bitops.h @@ -25,6 +25,7 @@ #include #include +#include #include #include #include diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h index 9e69cfb7f13..599ae6730bc 100644 --- a/arch/cris/include/asm/bitops.h +++ b/arch/cris/include/asm/bitops.h @@ -154,6 +154,7 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr) #include #include +#include #include #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h index 50ae91b2967..2631917c2be 100644 --- a/arch/frv/include/asm/bitops.h +++ b/arch/frv/include/asm/bitops.h @@ -401,6 +401,7 @@ int __ilog2_u64(u64 n) #include #include +#include #include #define ext2_set_bit_atomic(lock,nr,addr) test_and_set_bit ((nr) ^ 0x18, (addr)) diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h index cb9ddf5fc54..763094fdd7c 100644 --- a/arch/h8300/include/asm/bitops.h +++ b/arch/h8300/include/asm/bitops.h @@ -200,6 +200,7 @@ static __inline__ unsigned long __ffs(unsigned long word) #include #include #include +#include #include #include #include diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h index 9da3df6f1a5..2cde4f0f1aa 100644 --- a/arch/ia64/include/asm/bitops.h +++ b/arch/ia64/include/asm/bitops.h @@ -456,6 +456,7 @@ static __inline__ unsigned long __arch_hweight64(unsigned long x) #ifdef __KERNEL__ +#include #include #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h index aaddf0d5760..681f7e8e458 100644 --- a/arch/m32r/include/asm/bitops.h +++ b/arch/m32r/include/asm/bitops.h @@ -266,6 +266,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr) #ifdef __KERNEL__ +#include #include #include #include diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h index 50b4ef288c5..ef420eb1222 100644 --- a/arch/mips/include/asm/bitops.h +++ b/arch/mips/include/asm/bitops.h @@ -676,6 +676,7 @@ static inline int ffs(int word) #include #include +#include #include #include #include diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h index 3b8a868188f..42b54539c38 100644 --- a/arch/mn10300/include/asm/bitops.h +++ b/arch/mn10300/include/asm/bitops.h @@ -233,6 +233,7 @@ int ffs(int x) #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit((nr), (addr)) +#include #include #include diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h index 7a6ea10bd23..4b9e58debb1 100644 --- a/arch/parisc/include/asm/bitops.h +++ b/arch/parisc/include/asm/bitops.h @@ -222,6 +222,7 @@ static __inline__ int fls(int x) #ifdef __KERNEL__ +#include #include /* '3' is bits per byte */ diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h index 98511e4d28c..9167810c57b 100644 --- a/arch/sh/include/asm/bitops.h +++ b/arch/sh/include/asm/bitops.h @@ -94,6 +94,7 @@ static inline unsigned long ffz(unsigned long word) #include #include #include +#include #include #include #include diff --git a/arch/sparc/include/asm/bitops_32.h b/arch/sparc/include/asm/bitops_32.h index 9cf4ae0cd7b..5b3ab064658 100644 --- a/arch/sparc/include/asm/bitops_32.h +++ b/arch/sparc/include/asm/bitops_32.h @@ -103,6 +103,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr) #include #include #include +#include #include #include #include diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h index 766121a67a2..9097862faaa 100644 --- a/arch/sparc/include/asm/bitops_64.h +++ b/arch/sparc/include/asm/bitops_64.h @@ -89,6 +89,7 @@ static inline unsigned int __arch_hweight8(unsigned int w) #ifdef __KERNEL__ +#include #include #define ext2_set_bit_atomic(lock,nr,addr) \ diff --git a/arch/tile/include/asm/bitops.h b/arch/tile/include/asm/bitops.h index 6d4f0ff2c68..56b03553ad0 100644 --- a/arch/tile/include/asm/bitops.h +++ b/arch/tile/include/asm/bitops.h @@ -122,6 +122,7 @@ static inline unsigned long __arch_hweight64(__u64 w) #include #include #include +#include #include #include diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h index 903683b07e4..c68bc101441 100644 --- a/arch/x86/include/asm/bitops.h +++ b/arch/x86/include/asm/bitops.h @@ -456,6 +456,7 @@ static inline int fls(int x) #ifdef __KERNEL__ +#include #include #define ext2_set_bit_atomic(lock, nr, addr) \ diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h index 6c3930397bd..0475c11bfde 100644 --- a/arch/xtensa/include/asm/bitops.h +++ b/arch/xtensa/include/asm/bitops.h @@ -106,6 +106,7 @@ static inline unsigned long __fls(unsigned long word) #include #include +#include #include #ifdef __XTENSA_EL__ diff --git a/include/asm-generic/bitops.h b/include/asm-generic/bitops.h index a54f4421a24..933710b06e8 100644 --- a/include/asm-generic/bitops.h +++ b/include/asm-generic/bitops.h @@ -38,6 +38,7 @@ #include #include +#include #include #include #include diff --git a/include/asm-generic/bitops/ext2-non-atomic.h b/include/asm-generic/bitops/ext2-non-atomic.h index ba27bbe755a..ad0a244787f 100644 --- a/include/asm-generic/bitops/ext2-non-atomic.h +++ b/include/asm-generic/bitops/ext2-non-atomic.h @@ -1,8 +1,6 @@ #ifndef _ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_ #define _ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_ -#include - #define ext2_set_bit(nr,addr) \ __test_and_set_bit_le((nr), (unsigned long *)(addr)) #define ext2_clear_bit(nr,addr) \ diff --git a/include/asm-generic/bitops/minix-le.h b/include/asm-generic/bitops/minix-le.h index 854e9489f62..70f95eef416 100644 --- a/include/asm-generic/bitops/minix-le.h +++ b/include/asm-generic/bitops/minix-le.h @@ -1,8 +1,6 @@ #ifndef _ASM_GENERIC_BITOPS_MINIX_LE_H_ #define _ASM_GENERIC_BITOPS_MINIX_LE_H_ -#include - #define minix_test_and_set_bit(nr,addr) \ __test_and_set_bit_le((nr), (unsigned long *)(addr)) #define minix_set_bit(nr,addr) \ -- cgit v1.2.3-70-g09d2 From f312eff8164879e04923d41e9dd23e7850937d85 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 23 Mar 2011 16:42:14 -0700 Subject: bitops: remove ext2 non-atomic bitops from asm/bitops.h As the result of conversions, there are no users of ext2 non-atomic bit operations except for ext2 filesystem itself. Now we can put them into architecture independent code in ext2 filesystem, and remove from asm/bitops.h for all architectures. Signed-off-by: Akinobu Mita Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/bitops.h | 1 - arch/arm/include/asm/bitops.h | 7 ------- arch/avr32/include/asm/bitops.h | 1 - arch/blackfin/include/asm/bitops.h | 1 - arch/cris/include/asm/bitops.h | 1 - arch/frv/include/asm/bitops.h | 1 - arch/h8300/include/asm/bitops.h | 1 - arch/ia64/include/asm/bitops.h | 1 - arch/m32r/include/asm/bitops.h | 1 - arch/m68k/include/asm/bitops_mm.h | 7 ------- arch/m68k/include/asm/bitops_no.h | 7 ------- arch/mips/include/asm/bitops.h | 1 - arch/mn10300/include/asm/bitops.h | 1 - arch/parisc/include/asm/bitops.h | 1 - arch/powerpc/include/asm/bitops.h | 14 -------------- arch/s390/include/asm/bitops.h | 7 ------- arch/sh/include/asm/bitops.h | 1 - arch/sparc/include/asm/bitops_32.h | 1 - arch/sparc/include/asm/bitops_64.h | 1 - arch/tile/include/asm/bitops.h | 1 - arch/x86/include/asm/bitops.h | 1 - arch/xtensa/include/asm/bitops.h | 1 - fs/ext2/ext2.h | 6 ++++++ include/asm-generic/bitops.h | 1 - include/asm-generic/bitops/ext2-non-atomic.h | 18 ------------------ 25 files changed, 6 insertions(+), 78 deletions(-) delete mode 100644 include/asm-generic/bitops/ext2-non-atomic.h (limited to 'arch/x86/include') diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h index 955fec7cfeb..822433a00c6 100644 --- a/arch/alpha/include/asm/bitops.h +++ b/arch/alpha/include/asm/bitops.h @@ -455,7 +455,6 @@ sched_find_first_bit(const unsigned long b[2]) } #include -#include #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) #define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a) diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h index 0112005f3e9..f68f1fb6b38 100644 --- a/arch/arm/include/asm/bitops.h +++ b/arch/arm/include/asm/bitops.h @@ -339,18 +339,11 @@ static inline int find_next_bit_le(const void *p, int size, int offset) /* * Ext2 is defined to use little-endian byte ordering. - * These do not need to be atomic. */ -#define ext2_set_bit __test_and_set_bit_le #define ext2_set_bit_atomic(lock, nr, p) \ test_and_set_bit_le(nr, p) -#define ext2_clear_bit __test_and_clear_bit_le #define ext2_clear_bit_atomic(lock, nr, p) \ test_and_clear_bit_le(nr, p) -#define ext2_test_bit test_bit_le -#define ext2_find_first_zero_bit find_first_zero_bit_le -#define ext2_find_next_zero_bit find_next_zero_bit_le -#define ext2_find_next_bit find_next_bit_le /* * Minix is defined to use little-endian byte ordering. diff --git a/arch/avr32/include/asm/bitops.h b/arch/avr32/include/asm/bitops.h index 1c482fc9da7..73a163a71f1 100644 --- a/arch/avr32/include/asm/bitops.h +++ b/arch/avr32/include/asm/bitops.h @@ -300,7 +300,6 @@ static inline int ffs(unsigned long word) #include #include -#include #include #include diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h index fe257cfec97..6a69690bd46 100644 --- a/arch/blackfin/include/asm/bitops.h +++ b/arch/blackfin/include/asm/bitops.h @@ -26,7 +26,6 @@ #include #include -#include #include #include diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h index 599ae6730bc..71bea4032eb 100644 --- a/arch/cris/include/asm/bitops.h +++ b/arch/cris/include/asm/bitops.h @@ -155,7 +155,6 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr) #include #include -#include #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) #define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a) diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h index 2631917c2be..e3ea644108c 100644 --- a/arch/frv/include/asm/bitops.h +++ b/arch/frv/include/asm/bitops.h @@ -402,7 +402,6 @@ int __ilog2_u64(u64 n) #include #include -#include #define ext2_set_bit_atomic(lock,nr,addr) test_and_set_bit ((nr) ^ 0x18, (addr)) #define ext2_clear_bit_atomic(lock,nr,addr) test_and_clear_bit((nr) ^ 0x18, (addr)) diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h index 763094fdd7c..23cea666898 100644 --- a/arch/h8300/include/asm/bitops.h +++ b/arch/h8300/include/asm/bitops.h @@ -201,7 +201,6 @@ static __inline__ unsigned long __ffs(unsigned long word) #include #include #include -#include #include #include diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h index 2cde4f0f1aa..336984acc8c 100644 --- a/arch/ia64/include/asm/bitops.h +++ b/arch/ia64/include/asm/bitops.h @@ -457,7 +457,6 @@ static __inline__ unsigned long __arch_hweight64(unsigned long x) #ifdef __KERNEL__ #include -#include #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) #define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a) diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h index 681f7e8e458..cdfb4c82fb8 100644 --- a/arch/m32r/include/asm/bitops.h +++ b/arch/m32r/include/asm/bitops.h @@ -267,7 +267,6 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr) #ifdef __KERNEL__ #include -#include #include #include diff --git a/arch/m68k/include/asm/bitops_mm.h b/arch/m68k/include/asm/bitops_mm.h index d4658487def..3d16871402a 100644 --- a/arch/m68k/include/asm/bitops_mm.h +++ b/arch/m68k/include/asm/bitops_mm.h @@ -490,17 +490,10 @@ static inline unsigned long find_next_bit_le(const void *addr, /* Bitmap functions for the ext2 filesystem. */ -#define ext2_set_bit __test_and_set_bit_le #define ext2_set_bit_atomic(lock, nr, addr) \ test_and_set_bit_le(nr, addr) -#define ext2_clear_bit __test_and_clear_bit_le #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit_le(nr, addr) -#define ext2_find_next_zero_bit find_next_zero_bit_le -#define ext2_find_next_bit find_next_bit_le -#define ext2_test_bit test_bit_le -#define ext2_find_first_zero_bit find_first_zero_bit_le -#define ext2_find_first_bit find_first_bit_le #endif /* __KERNEL__ */ diff --git a/arch/m68k/include/asm/bitops_no.h b/arch/m68k/include/asm/bitops_no.h index 74b3f81f2e2..8db5fef8631 100644 --- a/arch/m68k/include/asm/bitops_no.h +++ b/arch/m68k/include/asm/bitops_no.h @@ -336,13 +336,6 @@ found_middle: return result + ffz(__swab32(tmp)); } -#define ext2_set_bit __test_and_set_bit_le -#define ext2_clear_bit __test_and_clear_bit_le -#define ext2_test_bit test_bit_le -#define ext2_find_first_zero_bit find_first_zero_bit_le -#define ext2_find_next_zero_bit find_next_zero_bit_le -#define ext2_find_next_bit find_next_bit_le - #include #endif /* __KERNEL__ */ diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h index ef420eb1222..e062718a3fe 100644 --- a/arch/mips/include/asm/bitops.h +++ b/arch/mips/include/asm/bitops.h @@ -677,7 +677,6 @@ static inline int ffs(int word) #include #include -#include #include #include diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h index 42b54539c38..a5f460cb834 100644 --- a/arch/mn10300/include/asm/bitops.h +++ b/arch/mn10300/include/asm/bitops.h @@ -234,7 +234,6 @@ int ffs(int x) test_and_clear_bit((nr), (addr)) #include -#include #include #endif /* __KERNEL__ */ diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h index 4b9e58debb1..919d7ed155e 100644 --- a/arch/parisc/include/asm/bitops.h +++ b/arch/parisc/include/asm/bitops.h @@ -223,7 +223,6 @@ static __inline__ int fls(int x) #ifdef __KERNEL__ #include -#include /* '3' is bits per byte */ #define LE_BYTE_ADDR ((sizeof(unsigned long) - 1) << 3) diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h index 0c1046fbdd2..e3bd9a3bcb4 100644 --- a/arch/powerpc/include/asm/bitops.h +++ b/arch/powerpc/include/asm/bitops.h @@ -327,25 +327,11 @@ unsigned long find_next_bit_le(const void *addr, unsigned long size, unsigned long offset); /* Bitmap functions for the ext2 filesystem */ -#define ext2_set_bit(nr,addr) \ - __test_and_set_bit_le((nr), (unsigned long*)addr) -#define ext2_clear_bit(nr, addr) \ - __test_and_clear_bit_le((nr), (unsigned long*)addr) - #define ext2_set_bit_atomic(lock, nr, addr) \ test_and_set_bit_le((nr), (unsigned long*)addr) #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit_le((nr), (unsigned long*)addr) -#define ext2_test_bit(nr, addr) test_bit_le((nr),(unsigned long*)addr) - -#define ext2_find_first_zero_bit(addr, size) \ - find_first_zero_bit_le((unsigned long*)addr, size) -#define ext2_find_next_zero_bit(addr, size, off) \ - find_next_zero_bit_le((unsigned long *)addr, size, off) - -#define ext2_find_next_bit(addr, size, off) \ - find_next_bit_le((unsigned long *)addr, size, off) /* Bitmap functions for the minix filesystem. */ #define minix_test_and_set_bit(nr,addr) \ diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index f48f9644e4b..2dd32bba47e 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -857,17 +857,10 @@ static inline int find_next_bit_le(void *vaddr, unsigned long size, return offset + find_first_bit_le(p, size); } -#define ext2_set_bit __test_and_set_bit_le #define ext2_set_bit_atomic(lock, nr, addr) \ test_and_set_bit_le(nr, addr) -#define ext2_clear_bit __test_and_clear_bit_le #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit_le(nr, addr) -#define ext2_test_bit test_bit_le -#define ext2_find_first_zero_bit find_first_zero_bit_le -#define ext2_find_next_zero_bit find_next_zero_bit_le -#define ext2_find_first_bit find_first_bit_le -#define ext2_find_next_bit find_next_bit_le #include diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h index 9167810c57b..fc5cd5b9b44 100644 --- a/arch/sh/include/asm/bitops.h +++ b/arch/sh/include/asm/bitops.h @@ -95,7 +95,6 @@ static inline unsigned long ffz(unsigned long word) #include #include #include -#include #include #include #include diff --git a/arch/sparc/include/asm/bitops_32.h b/arch/sparc/include/asm/bitops_32.h index 5b3ab064658..75da6f82a12 100644 --- a/arch/sparc/include/asm/bitops_32.h +++ b/arch/sparc/include/asm/bitops_32.h @@ -104,7 +104,6 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr) #include #include #include -#include #include #include diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h index 9097862faaa..66db28e6bbf 100644 --- a/arch/sparc/include/asm/bitops_64.h +++ b/arch/sparc/include/asm/bitops_64.h @@ -90,7 +90,6 @@ static inline unsigned int __arch_hweight8(unsigned int w) #ifdef __KERNEL__ #include -#include #define ext2_set_bit_atomic(lock,nr,addr) \ test_and_set_bit((nr) ^ 0x38,(unsigned long *)(addr)) diff --git a/arch/tile/include/asm/bitops.h b/arch/tile/include/asm/bitops.h index 56b03553ad0..5447addafca 100644 --- a/arch/tile/include/asm/bitops.h +++ b/arch/tile/include/asm/bitops.h @@ -123,7 +123,6 @@ static inline unsigned long __arch_hweight64(__u64 w) #include #include #include -#include #include #endif /* _ASM_TILE_BITOPS_H */ diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h index c68bc101441..3c95e072c17 100644 --- a/arch/x86/include/asm/bitops.h +++ b/arch/x86/include/asm/bitops.h @@ -457,7 +457,6 @@ static inline int fls(int x) #ifdef __KERNEL__ #include -#include #define ext2_set_bit_atomic(lock, nr, addr) \ test_and_set_bit((nr), (unsigned long *)(addr)) diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h index 0475c11bfde..a56b7b577f0 100644 --- a/arch/xtensa/include/asm/bitops.h +++ b/arch/xtensa/include/asm/bitops.h @@ -107,7 +107,6 @@ static inline unsigned long __fls(unsigned long word) #include #include #include -#include #ifdef __XTENSA_EL__ # define ext2_set_bit_atomic(lock,nr,addr) \ diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h index 1b48c337087..645be9e7ee4 100644 --- a/fs/ext2/ext2.h +++ b/fs/ext2/ext2.h @@ -174,3 +174,9 @@ ext2_group_first_block_no(struct super_block *sb, unsigned long group_no) return group_no * (ext2_fsblk_t)EXT2_BLOCKS_PER_GROUP(sb) + le32_to_cpu(EXT2_SB(sb)->s_es->s_first_data_block); } + +#define ext2_set_bit __test_and_set_bit_le +#define ext2_clear_bit __test_and_clear_bit_le +#define ext2_test_bit test_bit_le +#define ext2_find_first_zero_bit find_first_zero_bit_le +#define ext2_find_next_zero_bit find_next_zero_bit_le diff --git a/include/asm-generic/bitops.h b/include/asm-generic/bitops.h index 933710b06e8..dd7c0147aec 100644 --- a/include/asm-generic/bitops.h +++ b/include/asm-generic/bitops.h @@ -39,7 +39,6 @@ #include #include #include -#include #include #include diff --git a/include/asm-generic/bitops/ext2-non-atomic.h b/include/asm-generic/bitops/ext2-non-atomic.h deleted file mode 100644 index ad0a244787f..00000000000 --- a/include/asm-generic/bitops/ext2-non-atomic.h +++ /dev/null @@ -1,18 +0,0 @@ -#ifndef _ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_ -#define _ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_ - -#define ext2_set_bit(nr,addr) \ - __test_and_set_bit_le((nr), (unsigned long *)(addr)) -#define ext2_clear_bit(nr,addr) \ - __test_and_clear_bit_le((nr), (unsigned long *)(addr)) - -#define ext2_test_bit(nr,addr) \ - test_bit_le((nr), (unsigned long *)(addr)) -#define ext2_find_first_zero_bit(addr, size) \ - find_first_zero_bit_le((unsigned long *)(addr), (size)) -#define ext2_find_next_zero_bit(addr, size, off) \ - find_next_zero_bit_le((unsigned long *)(addr), (size), (off)) -#define ext2_find_next_bit(addr, size, off) \ - find_next_bit_le((unsigned long *)(addr), (size), (off)) - -#endif /* _ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_ */ -- cgit v1.2.3-70-g09d2 From 61f2e7b0f474225b4226772830ae4b29a3a21f8d Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 23 Mar 2011 16:42:16 -0700 Subject: bitops: remove minix bitops from asm/bitops.h minix bit operations are only used by minix filesystem and useless by other modules. Because byte order of inode and block bitmaps is different on each architecture like below: m68k: big-endian 16bit indexed bitmaps h8300, microblaze, s390, sparc, m68knommu: big-endian 32 or 64bit indexed bitmaps m32r, mips, sh, xtensa: big-endian 32 or 64bit indexed bitmaps for big-endian mode little-endian bitmaps for little-endian mode Others: little-endian bitmaps In order to move minix bit operations from asm/bitops.h to architecture independent code in minix filesystem, this provides two config options. CONFIG_MINIX_FS_BIG_ENDIAN_16BIT_INDEXED is only selected by m68k. CONFIG_MINIX_FS_NATIVE_ENDIAN is selected by the architectures which use native byte order bitmaps (h8300, microblaze, s390, sparc, m68knommu, m32r, mips, sh, xtensa). The architectures which always use little-endian bitmaps do not select these options. Finally, we can remove minix bit operations from asm/bitops.h for all architectures. Signed-off-by: Akinobu Mita Acked-by: Arnd Bergmann Acked-by: Greg Ungerer Cc: Geert Uytterhoeven Cc: Roman Zippel Cc: Andreas Schwab Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Yoshinori Sato Cc: Michal Simek Cc: "David S. Miller" Cc: Hirokazu Takata Acked-by: Ralf Baechle Acked-by: Paul Mundt Cc: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/bitops.h | 2 - arch/arm/include/asm/bitops.h | 10 ----- arch/avr32/include/asm/bitops.h | 1 - arch/blackfin/include/asm/bitops.h | 1 - arch/cris/include/asm/bitops.h | 1 - arch/frv/include/asm/bitops.h | 2 - arch/h8300/include/asm/bitops.h | 1 - arch/ia64/include/asm/bitops.h | 1 - arch/m32r/include/asm/bitops.h | 1 - arch/m68k/include/asm/bitops_mm.h | 30 -------------- arch/m68k/include/asm/bitops_no.h | 2 - arch/mips/include/asm/bitops.h | 1 - arch/mn10300/include/asm/bitops.h | 1 - arch/parisc/include/asm/bitops.h | 2 - arch/powerpc/include/asm/bitops.h | 14 ------- arch/s390/include/asm/bitops.h | 1 - arch/sh/include/asm/bitops.h | 1 - arch/sparc/include/asm/bitops_32.h | 1 - arch/sparc/include/asm/bitops_64.h | 2 - arch/tile/include/asm/bitops.h | 1 - arch/x86/include/asm/bitops.h | 2 - arch/xtensa/include/asm/bitops.h | 1 - fs/minix/Kconfig | 8 ++++ fs/minix/minix.h | 74 +++++++++++++++++++++++++++++++++++ include/asm-generic/bitops.h | 1 - include/asm-generic/bitops/minix-le.h | 15 ------- include/asm-generic/bitops/minix.h | 15 ------- 27 files changed, 82 insertions(+), 110 deletions(-) delete mode 100644 include/asm-generic/bitops/minix-le.h delete mode 100644 include/asm-generic/bitops/minix.h (limited to 'arch/x86/include') diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h index 822433a00c6..85b81521577 100644 --- a/arch/alpha/include/asm/bitops.h +++ b/arch/alpha/include/asm/bitops.h @@ -459,8 +459,6 @@ sched_find_first_bit(const unsigned long b[2]) #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) #define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a) -#include - #endif /* __KERNEL__ */ #endif /* _ALPHA_BITOPS_H */ diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h index f68f1fb6b38..6b7403fd8f5 100644 --- a/arch/arm/include/asm/bitops.h +++ b/arch/arm/include/asm/bitops.h @@ -345,16 +345,6 @@ static inline int find_next_bit_le(const void *p, int size, int offset) #define ext2_clear_bit_atomic(lock, nr, p) \ test_and_clear_bit_le(nr, p) -/* - * Minix is defined to use little-endian byte ordering. - * These do not need to be atomic. - */ -#define minix_set_bit __set_bit_le -#define minix_test_bit test_bit_le -#define minix_test_and_set_bit __test_and_set_bit_le -#define minix_test_and_clear_bit __test_and_clear_bit_le -#define minix_find_first_zero_bit find_first_zero_bit_le - #endif /* __KERNEL__ */ #endif /* _ARM_BITOPS_H */ diff --git a/arch/avr32/include/asm/bitops.h b/arch/avr32/include/asm/bitops.h index 73a163a71f1..72444d97f80 100644 --- a/arch/avr32/include/asm/bitops.h +++ b/arch/avr32/include/asm/bitops.h @@ -301,6 +301,5 @@ static inline int ffs(unsigned long word) #include #include -#include #endif /* __ASM_AVR32_BITOPS_H */ diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h index 6a69690bd46..49762c6bb0d 100644 --- a/arch/blackfin/include/asm/bitops.h +++ b/arch/blackfin/include/asm/bitops.h @@ -27,7 +27,6 @@ #include #include -#include #ifndef CONFIG_SMP #include diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h index 71bea4032eb..310e0de67aa 100644 --- a/arch/cris/include/asm/bitops.h +++ b/arch/cris/include/asm/bitops.h @@ -159,7 +159,6 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr) #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) #define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a) -#include #include #endif /* __KERNEL__ */ diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h index e3ea644108c..a1d00b0c6ed 100644 --- a/arch/frv/include/asm/bitops.h +++ b/arch/frv/include/asm/bitops.h @@ -406,8 +406,6 @@ int __ilog2_u64(u64 n) #define ext2_set_bit_atomic(lock,nr,addr) test_and_set_bit ((nr) ^ 0x18, (addr)) #define ext2_clear_bit_atomic(lock,nr,addr) test_and_clear_bit((nr) ^ 0x18, (addr)) -#include - #endif /* __KERNEL__ */ #endif /* _ASM_BITOPS_H */ diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h index 23cea666898..e856c1bb341 100644 --- a/arch/h8300/include/asm/bitops.h +++ b/arch/h8300/include/asm/bitops.h @@ -202,7 +202,6 @@ static __inline__ unsigned long __ffs(unsigned long word) #include #include #include -#include #endif /* __KERNEL__ */ diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h index 336984acc8c..b76f7e00921 100644 --- a/arch/ia64/include/asm/bitops.h +++ b/arch/ia64/include/asm/bitops.h @@ -461,7 +461,6 @@ static __inline__ unsigned long __arch_hweight64(unsigned long x) #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a) #define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a) -#include #include #endif /* __KERNEL__ */ diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h index cdfb4c82fb8..6300f22cdbd 100644 --- a/arch/m32r/include/asm/bitops.h +++ b/arch/m32r/include/asm/bitops.h @@ -268,7 +268,6 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr) #include #include -#include #endif /* __KERNEL__ */ diff --git a/arch/m68k/include/asm/bitops_mm.h b/arch/m68k/include/asm/bitops_mm.h index a403b5e69aa..9d69f6e6236 100644 --- a/arch/m68k/include/asm/bitops_mm.h +++ b/arch/m68k/include/asm/bitops_mm.h @@ -325,36 +325,6 @@ static inline int __fls(int x) #include #include -/* Bitmap functions for the minix filesystem */ - -static inline int minix_find_first_zero_bit(const void *vaddr, unsigned size) -{ - const unsigned short *p = vaddr, *addr = vaddr; - unsigned short num; - - if (!size) - return 0; - - size = (size >> 4) + ((size & 15) > 0); - while (*p++ == 0xffff) { - if (--size == 0) - return (p - addr) << 4; - } - - num = *--p; - return ((p - addr) << 4) + ffz(num); -} - -#define minix_test_and_set_bit(nr, addr) __test_and_set_bit((nr) ^ 16, (unsigned long *)(addr)) -#define minix_set_bit(nr,addr) __set_bit((nr) ^ 16, (unsigned long *)(addr)) -#define minix_test_and_clear_bit(nr, addr) __test_and_clear_bit((nr) ^ 16, (unsigned long *)(addr)) - -static inline int minix_test_bit(int nr, const void *vaddr) -{ - const unsigned short *p = vaddr; - return (p[nr >> 4] & (1U << (nr & 15))) != 0; -} - /* Bitmap functions for the little endian bitmap. */ static inline void __set_bit_le(int nr, void *addr) diff --git a/arch/m68k/include/asm/bitops_no.h b/arch/m68k/include/asm/bitops_no.h index 8db5fef8631..7d3779fdc5b 100644 --- a/arch/m68k/include/asm/bitops_no.h +++ b/arch/m68k/include/asm/bitops_no.h @@ -336,8 +336,6 @@ found_middle: return result + ffz(__swab32(tmp)); } -#include - #endif /* __KERNEL__ */ #include diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h index e062718a3fe..2e1ad4c652b 100644 --- a/arch/mips/include/asm/bitops.h +++ b/arch/mips/include/asm/bitops.h @@ -678,7 +678,6 @@ static inline int ffs(int word) #include #include -#include #endif /* __KERNEL__ */ diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h index a5f460cb834..0939462967e 100644 --- a/arch/mn10300/include/asm/bitops.h +++ b/arch/mn10300/include/asm/bitops.h @@ -234,7 +234,6 @@ int ffs(int x) test_and_clear_bit((nr), (addr)) #include -#include #endif /* __KERNEL__ */ #endif /* __ASM_BITOPS_H */ diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h index 919d7ed155e..43c516fa17f 100644 --- a/arch/parisc/include/asm/bitops.h +++ b/arch/parisc/include/asm/bitops.h @@ -234,6 +234,4 @@ static __inline__ int fls(int x) #endif /* __KERNEL__ */ -#include - #endif /* _PARISC_BITOPS_H */ diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h index e3bd9a3bcb4..2e561876fc8 100644 --- a/arch/powerpc/include/asm/bitops.h +++ b/arch/powerpc/include/asm/bitops.h @@ -332,20 +332,6 @@ unsigned long find_next_bit_le(const void *addr, #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit_le((nr), (unsigned long*)addr) -/* Bitmap functions for the minix filesystem. */ - -#define minix_test_and_set_bit(nr,addr) \ - __test_and_set_bit_le(nr, (unsigned long *)addr) -#define minix_set_bit(nr,addr) \ - __set_bit_le(nr, (unsigned long *)addr) -#define minix_test_and_clear_bit(nr,addr) \ - __test_and_clear_bit_le(nr, (unsigned long *)addr) -#define minix_test_bit(nr,addr) \ - test_bit_le(nr, (unsigned long *)addr) - -#define minix_find_first_zero_bit(addr,size) \ - find_first_zero_bit_le((unsigned long *)addr, size) - #include #endif /* __KERNEL__ */ diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 2dd32bba47e..e1c8f3a4988 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -862,7 +862,6 @@ static inline int find_next_bit_le(void *vaddr, unsigned long size, #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit_le(nr, addr) -#include #endif /* __KERNEL__ */ diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h index fc5cd5b9b44..90fa3e48b4d 100644 --- a/arch/sh/include/asm/bitops.h +++ b/arch/sh/include/asm/bitops.h @@ -96,7 +96,6 @@ static inline unsigned long ffz(unsigned long word) #include #include #include -#include #include #include #include diff --git a/arch/sparc/include/asm/bitops_32.h b/arch/sparc/include/asm/bitops_32.h index 75da6f82a12..25a676653d4 100644 --- a/arch/sparc/include/asm/bitops_32.h +++ b/arch/sparc/include/asm/bitops_32.h @@ -105,7 +105,6 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr) #include #include #include -#include #endif /* __KERNEL__ */ diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h index 66db28e6bbf..38e9aa1b2ce 100644 --- a/arch/sparc/include/asm/bitops_64.h +++ b/arch/sparc/include/asm/bitops_64.h @@ -96,8 +96,6 @@ static inline unsigned int __arch_hweight8(unsigned int w) #define ext2_clear_bit_atomic(lock,nr,addr) \ test_and_clear_bit((nr) ^ 0x38,(unsigned long *)(addr)) -#include - #endif /* __KERNEL__ */ #endif /* defined(_SPARC64_BITOPS_H) */ diff --git a/arch/tile/include/asm/bitops.h b/arch/tile/include/asm/bitops.h index 5447addafca..132e6bbd07e 100644 --- a/arch/tile/include/asm/bitops.h +++ b/arch/tile/include/asm/bitops.h @@ -123,6 +123,5 @@ static inline unsigned long __arch_hweight64(__u64 w) #include #include #include -#include #endif /* _ASM_TILE_BITOPS_H */ diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h index 3c95e072c17..69d58131bc8 100644 --- a/arch/x86/include/asm/bitops.h +++ b/arch/x86/include/asm/bitops.h @@ -463,7 +463,5 @@ static inline int fls(int x) #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit((nr), (unsigned long *)(addr)) -#include - #endif /* __KERNEL__ */ #endif /* _ASM_X86_BITOPS_H */ diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h index a56b7b577f0..c8fac8d8190 100644 --- a/arch/xtensa/include/asm/bitops.h +++ b/arch/xtensa/include/asm/bitops.h @@ -125,7 +125,6 @@ static inline unsigned long __fls(unsigned long word) #include #include #include -#include #endif /* __KERNEL__ */ diff --git a/fs/minix/Kconfig b/fs/minix/Kconfig index 0fd7ca99426..6624684dd5d 100644 --- a/fs/minix/Kconfig +++ b/fs/minix/Kconfig @@ -15,3 +15,11 @@ config MINIX_FS module will be called minix. Note that the file system of your root partition (the one containing the directory /) cannot be compiled as a module. + +config MINIX_FS_NATIVE_ENDIAN + def_bool MINIX_FS + depends on H8300 || M32R || MICROBLAZE || MIPS || S390 || SUPERH || SPARC || XTENSA || (M68K && !MMU) + +config MINIX_FS_BIG_ENDIAN_16BIT_INDEXED + def_bool MINIX_FS + depends on M68K && MMU diff --git a/fs/minix/minix.h b/fs/minix/minix.h index 407b1c84911..341e2122879 100644 --- a/fs/minix/minix.h +++ b/fs/minix/minix.h @@ -88,4 +88,78 @@ static inline struct minix_inode_info *minix_i(struct inode *inode) return list_entry(inode, struct minix_inode_info, vfs_inode); } +#if defined(CONFIG_MINIX_FS_NATIVE_ENDIAN) && \ + defined(CONFIG_MINIX_FS_BIG_ENDIAN_16BIT_INDEXED) + +#error Minix file system byte order broken + +#elif defined(CONFIG_MINIX_FS_NATIVE_ENDIAN) + +/* + * big-endian 32 or 64 bit indexed bitmaps on big-endian system or + * little-endian bitmaps on little-endian system + */ + +#define minix_test_and_set_bit(nr, addr) \ + __test_and_set_bit((nr), (unsigned long *)(addr)) +#define minix_set_bit(nr, addr) \ + __set_bit((nr), (unsigned long *)(addr)) +#define minix_test_and_clear_bit(nr, addr) \ + __test_and_clear_bit((nr), (unsigned long *)(addr)) +#define minix_test_bit(nr, addr) \ + test_bit((nr), (unsigned long *)(addr)) +#define minix_find_first_zero_bit(addr, size) \ + find_first_zero_bit((unsigned long *)(addr), (size)) + +#elif defined(CONFIG_MINIX_FS_BIG_ENDIAN_16BIT_INDEXED) + +/* + * big-endian 16bit indexed bitmaps + */ + +static inline int minix_find_first_zero_bit(const void *vaddr, unsigned size) +{ + const unsigned short *p = vaddr, *addr = vaddr; + unsigned short num; + + if (!size) + return 0; + + size = (size >> 4) + ((size & 15) > 0); + while (*p++ == 0xffff) { + if (--size == 0) + return (p - addr) << 4; + } + + num = *--p; + return ((p - addr) << 4) + ffz(num); +} + +#define minix_test_and_set_bit(nr, addr) \ + __test_and_set_bit((nr) ^ 16, (unsigned long *)(addr)) +#define minix_set_bit(nr, addr) \ + __set_bit((nr) ^ 16, (unsigned long *)(addr)) +#define minix_test_and_clear_bit(nr, addr) \ + __test_and_clear_bit((nr) ^ 16, (unsigned long *)(addr)) + +static inline int minix_test_bit(int nr, const void *vaddr) +{ + const unsigned short *p = vaddr; + return (p[nr >> 4] & (1U << (nr & 15))) != 0; +} + +#else + +/* + * little-endian bitmaps + */ + +#define minix_test_and_set_bit __test_and_set_bit_le +#define minix_set_bit __set_bit_le +#define minix_test_and_clear_bit __test_and_clear_bit_le +#define minix_test_bit test_bit_le +#define minix_find_first_zero_bit find_first_zero_bit_le + +#endif + #endif /* FS_MINIX_H */ diff --git a/include/asm-generic/bitops.h b/include/asm-generic/bitops.h index dd7c0147aec..280ca7a96f7 100644 --- a/include/asm-generic/bitops.h +++ b/include/asm-generic/bitops.h @@ -40,6 +40,5 @@ #include #include #include -#include #endif /* __ASM_GENERIC_BITOPS_H */ diff --git a/include/asm-generic/bitops/minix-le.h b/include/asm-generic/bitops/minix-le.h deleted file mode 100644 index 70f95eef416..00000000000 --- a/include/asm-generic/bitops/minix-le.h +++ /dev/null @@ -1,15 +0,0 @@ -#ifndef _ASM_GENERIC_BITOPS_MINIX_LE_H_ -#define _ASM_GENERIC_BITOPS_MINIX_LE_H_ - -#define minix_test_and_set_bit(nr,addr) \ - __test_and_set_bit_le((nr), (unsigned long *)(addr)) -#define minix_set_bit(nr,addr) \ - __set_bit_le((nr), (unsigned long *)(addr)) -#define minix_test_and_clear_bit(nr,addr) \ - __test_and_clear_bit_le((nr), (unsigned long *)(addr)) -#define minix_test_bit(nr,addr) \ - test_bit_le((nr), (unsigned long *)(addr)) -#define minix_find_first_zero_bit(addr,size) \ - find_first_zero_bit_le((unsigned long *)(addr), (size)) - -#endif /* _ASM_GENERIC_BITOPS_MINIX_LE_H_ */ diff --git a/include/asm-generic/bitops/minix.h b/include/asm-generic/bitops/minix.h deleted file mode 100644 index 91f42e87aa5..00000000000 --- a/include/asm-generic/bitops/minix.h +++ /dev/null @@ -1,15 +0,0 @@ -#ifndef _ASM_GENERIC_BITOPS_MINIX_H_ -#define _ASM_GENERIC_BITOPS_MINIX_H_ - -#define minix_test_and_set_bit(nr,addr) \ - __test_and_set_bit((nr),(unsigned long *)(addr)) -#define minix_set_bit(nr,addr) \ - __set_bit((nr),(unsigned long *)(addr)) -#define minix_test_and_clear_bit(nr,addr) \ - __test_and_clear_bit((nr),(unsigned long *)(addr)) -#define minix_test_bit(nr,addr) \ - test_bit((nr),(unsigned long *)(addr)) -#define minix_find_first_zero_bit(addr,size) \ - find_first_zero_bit((unsigned long *)(addr),(size)) - -#endif /* _ASM_GENERIC_BITOPS_MINIX_H_ */ -- cgit v1.2.3-70-g09d2 From 8547727756a7322b99aa313ce50fe15d8f858872 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Wed, 23 Mar 2011 16:43:28 -0700 Subject: remove dma64_addr_t There is no user now. Signed-off-by: FUJITA Tomonori Cc: David Miller Cc: Ralf Baechle Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/types.h | 11 ----------- arch/arm/include/asm/types.h | 6 ------ arch/cris/include/asm/types.h | 6 ------ arch/m32r/include/asm/types.h | 6 ------ arch/m68k/include/asm/types.h | 6 ------ arch/mips/include/asm/types.h | 2 -- arch/parisc/include/asm/types.h | 13 ------------- arch/powerpc/include/asm/types.h | 2 -- arch/s390/include/asm/types.h | 2 -- arch/sparc/include/asm/types.h | 18 ------------------ arch/x86/include/asm/types.h | 8 -------- 11 files changed, 80 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/alpha/include/asm/types.h b/arch/alpha/include/asm/types.h index e46e50382d2..881544339c2 100644 --- a/arch/alpha/include/asm/types.h +++ b/arch/alpha/include/asm/types.h @@ -20,15 +20,4 @@ typedef unsigned int umode_t; #endif /* __ASSEMBLY__ */ - -/* - * These aren't exported outside the kernel to avoid name space clashes - */ -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -typedef u64 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ #endif /* _ALPHA_TYPES_H */ diff --git a/arch/arm/include/asm/types.h b/arch/arm/include/asm/types.h index c684e3769f4..48192ac3a23 100644 --- a/arch/arm/include/asm/types.h +++ b/arch/arm/include/asm/types.h @@ -16,12 +16,6 @@ typedef unsigned short umode_t; #define BITS_PER_LONG 32 -#ifndef __ASSEMBLY__ - -typedef u32 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ - #endif /* __KERNEL__ */ #endif diff --git a/arch/cris/include/asm/types.h b/arch/cris/include/asm/types.h index 44055087c93..551a12c0aa0 100644 --- a/arch/cris/include/asm/types.h +++ b/arch/cris/include/asm/types.h @@ -16,12 +16,6 @@ typedef unsigned short umode_t; #define BITS_PER_LONG 32 -#ifndef __ASSEMBLY__ - -typedef u32 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ - #endif /* __KERNEL__ */ #endif diff --git a/arch/m32r/include/asm/types.h b/arch/m32r/include/asm/types.h index fd84b4898e3..bd0035597b3 100644 --- a/arch/m32r/include/asm/types.h +++ b/arch/m32r/include/asm/types.h @@ -16,12 +16,6 @@ typedef unsigned short umode_t; #define BITS_PER_LONG 32 -#ifndef __ASSEMBLY__ - -typedef u64 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ - #endif /* __KERNEL__ */ #endif /* _ASM_M32R_TYPES_H */ diff --git a/arch/m68k/include/asm/types.h b/arch/m68k/include/asm/types.h index 10ad92f1c17..b17fd115a4e 100644 --- a/arch/m68k/include/asm/types.h +++ b/arch/m68k/include/asm/types.h @@ -23,12 +23,6 @@ typedef unsigned short umode_t; #define BITS_PER_LONG 32 -#ifndef __ASSEMBLY__ - -typedef u32 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ - #endif /* __KERNEL__ */ #endif /* _M68K_TYPES_H */ diff --git a/arch/mips/include/asm/types.h b/arch/mips/include/asm/types.h index 9520dc89498..533812b6188 100644 --- a/arch/mips/include/asm/types.h +++ b/arch/mips/include/asm/types.h @@ -33,8 +33,6 @@ typedef unsigned short umode_t; #ifdef __KERNEL__ #ifndef __ASSEMBLY__ -typedef u64 dma64_addr_t; - /* * Don't use phys_t. You've been warned. */ diff --git a/arch/parisc/include/asm/types.h b/arch/parisc/include/asm/types.h index bc164ddffb7..80e415c9936 100644 --- a/arch/parisc/include/asm/types.h +++ b/arch/parisc/include/asm/types.h @@ -9,17 +9,4 @@ typedef unsigned short umode_t; #endif /* __ASSEMBLY__ */ -/* - * These aren't exported outside the kernel to avoid name space clashes - */ -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ - -typedef u64 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - #endif diff --git a/arch/powerpc/include/asm/types.h b/arch/powerpc/include/asm/types.h index e16a6b2d96f..8947b9827bc 100644 --- a/arch/powerpc/include/asm/types.h +++ b/arch/powerpc/include/asm/types.h @@ -44,8 +44,6 @@ typedef struct { typedef __vector128 vector128; -typedef u64 dma64_addr_t; - typedef struct { unsigned long entry; unsigned long toc; diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h index f7f6ae6bed8..eeb52ccf499 100644 --- a/arch/s390/include/asm/types.h +++ b/arch/s390/include/asm/types.h @@ -30,8 +30,6 @@ typedef __signed__ long saddr_t; #ifndef __ASSEMBLY__ -typedef u64 dma64_addr_t; - #ifndef __s390x__ typedef union { unsigned long long pair; diff --git a/arch/sparc/include/asm/types.h b/arch/sparc/include/asm/types.h index f02d330cb9f..91e5a034f98 100644 --- a/arch/sparc/include/asm/types.h +++ b/arch/sparc/include/asm/types.h @@ -18,24 +18,6 @@ typedef unsigned short umode_t; #endif /* __ASSEMBLY__ */ -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ - -#if defined(__arch64__) - -/*** SPARC 64 bit ***/ -typedef u64 dma64_addr_t; -#else -/*** SPARC 32 bit ***/ -typedef u32 dma64_addr_t; - -#endif /* defined(__arch64__) */ - -#endif /* __ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - #endif /* defined(__sparc__) */ #endif /* defined(_SPARC_TYPES_H) */ diff --git a/arch/x86/include/asm/types.h b/arch/x86/include/asm/types.h index 88102055a4b..8e8c23fef08 100644 --- a/arch/x86/include/asm/types.h +++ b/arch/x86/include/asm/types.h @@ -3,12 +3,4 @@ #include -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -typedef u64 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ - #endif /* _ASM_X86_TYPES_H */ -- cgit v1.2.3-70-g09d2 From d7c3f8cee81f4548de0513403b74131aee655576 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Sat, 26 Mar 2011 20:57:18 -0500 Subject: percpu: Omit segment prefix in the UP case for cmpxchg_double Omit the segment prefix in the UP case. GS is not used then and we will generate segfaults if cmpxchg16b is used otherwise. Signed-off-by: Christoph Lameter Signed-off-by: Linus Torvalds --- arch/x86/include/asm/percpu.h | 10 ++++++---- arch/x86/lib/cmpxchg16b_emu.S | 14 ++++++++++---- 2 files changed, 16 insertions(+), 8 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index a09e1f052d8..d475b4398d8 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -45,7 +45,7 @@ #include #ifdef CONFIG_SMP -#define __percpu_arg(x) "%%"__stringify(__percpu_seg)":%P" #x +#define __percpu_prefix "%%"__stringify(__percpu_seg)":" #define __my_cpu_offset percpu_read(this_cpu_off) /* @@ -62,9 +62,11 @@ (typeof(*(ptr)) __kernel __force *)tcp_ptr__; \ }) #else -#define __percpu_arg(x) "%P" #x +#define __percpu_prefix "" #endif +#define __percpu_arg(x) __percpu_prefix "%P" #x + /* * Initialized pointers to per-cpu variables needed for the boot * processor need to use these macros to get the proper address @@ -516,11 +518,11 @@ do { \ typeof(o2) __n2 = n2; \ typeof(o2) __dummy; \ alternative_io("call this_cpu_cmpxchg16b_emu\n\t" P6_NOP4, \ - "cmpxchg16b %%gs:(%%rsi)\n\tsetz %0\n\t", \ + "cmpxchg16b " __percpu_prefix "(%%rsi)\n\tsetz %0\n\t", \ X86_FEATURE_CX16, \ ASM_OUTPUT2("=a"(__ret), "=d"(__dummy)), \ "S" (&pcp1), "b"(__n1), "c"(__n2), \ - "a"(__o1), "d"(__o2)); \ + "a"(__o1), "d"(__o2) : "memory"); \ __ret; \ }) diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S index 3e8b08a6de2..1e572c507d0 100644 --- a/arch/x86/lib/cmpxchg16b_emu.S +++ b/arch/x86/lib/cmpxchg16b_emu.S @@ -10,6 +10,12 @@ #include #include +#ifdef CONFIG_SMP +#define SEG_PREFIX %gs: +#else +#define SEG_PREFIX +#endif + .text /* @@ -37,13 +43,13 @@ this_cpu_cmpxchg16b_emu: pushf cli - cmpq %gs:(%rsi), %rax + cmpq SEG_PREFIX(%rsi), %rax jne not_same - cmpq %gs:8(%rsi), %rdx + cmpq SEG_PREFIX 8(%rsi), %rdx jne not_same - movq %rbx, %gs:(%rsi) - movq %rcx, %gs:8(%rsi) + movq %rbx, SEG_PREFIX(%rsi) + movq %rcx, SEG_PREFIX 8(%rsi) popf mov $1, %al -- cgit v1.2.3-70-g09d2 From ca444564a947034557a85357b3911d067cac4b8f Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Fri, 25 Mar 2011 15:20:14 +0100 Subject: x86: Stop including in two asm header files Stop including in x86 header files which don't need it. This will let the compiler complain when this header is not included by source files when it should, so that contributors can fix the problem before building on other architectures starts to fail. Credits go to Geert for the idea. Signed-off-by: Jean Delvare Cc: James E.J. Bottomley Cc: Geert Uytterhoeven Cc: Stephen Rothwell LKML-Reference: <20110325152014.297890ec@endymion.delvare> [ this also fixes an upstream build bug in drivers/media/rc/ite-cir.c ] Signed-off-by: Ingo Molnar --- arch/x86/include/asm/apic.h | 1 - arch/x86/include/asm/dma.h | 1 - arch/x86/kernel/apic/hw_nmi.c | 1 + arch/x86/kernel/apic/x2apic_uv_x.c | 1 + arch/x86/kernel/irq.c | 1 + arch/x86/kernel/reboot.c | 1 + arch/x86/platform/uv/tlb_uv.c | 1 + drivers/media/rc/ite-cir.c | 1 + drivers/scsi/ultrastor.c | 1 + 9 files changed, 7 insertions(+), 2 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index a279d98ea95..2b7d573be54 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -2,7 +2,6 @@ #define _ASM_X86_APIC_H #include -#include #include #include diff --git a/arch/x86/include/asm/dma.h b/arch/x86/include/asm/dma.h index 97b6d8114a4..057099e5fab 100644 --- a/arch/x86/include/asm/dma.h +++ b/arch/x86/include/asm/dma.h @@ -10,7 +10,6 @@ #include /* And spinlocks */ #include /* need byte IO */ -#include #ifdef HAVE_REALLY_SLOW_DMA_CONTROLLER #define dma_outb outb_p diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c index c4e557a1ebb..5260fe91bcb 100644 --- a/arch/x86/kernel/apic/hw_nmi.c +++ b/arch/x86/kernel/apic/hw_nmi.c @@ -16,6 +16,7 @@ #include #include #include +#include #ifdef CONFIG_HARDLOCKUP_DETECTOR u64 hw_nmi_get_sample_period(void) diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 3c289281394..d2cf39bc5ec 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 948a31eae75..1cb0b9fc78d 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index d3ce37edb54..08c44b08bf5 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c index a7b38d35c29..7cb6424317f 100644 --- a/arch/x86/platform/uv/tlb_uv.c +++ b/arch/x86/platform/uv/tlb_uv.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c index ac0e42b47b2..accaf6c9789 100644 --- a/drivers/media/rc/ite-cir.c +++ b/drivers/media/rc/ite-cir.c @@ -41,6 +41,7 @@ #include #include #include +#include #include "ite-cir.h" diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c index 0571ef9639c..9f4b58b7daa 100644 --- a/drivers/scsi/ultrastor.c +++ b/drivers/scsi/ultrastor.c @@ -138,6 +138,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3-70-g09d2 From f994d99cf140dbb637e49882891c89b3fd84becd Mon Sep 17 00:00:00 2001 From: Hans Rosenfeld Date: Wed, 6 Apr 2011 18:06:43 +0200 Subject: x86-32, fpu: Fix FPU exception handling on non-SSE systems On 32bit systems without SSE (that is, they use FSAVE/FRSTOR for FPU context switches), FPU exceptions in user mode cause Oopses, BUGs, recursive faults and other nasty things: fpu exception: 0000 [#1] last sysfs file: /sys/power/state Modules linked in: psmouse evdev pcspkr serio_raw [last unloaded: scsi_wait_scan] Pid: 1638, comm: fxsave-32-excep Not tainted 2.6.35-07798-g58a992b-dirty #633 VP3-596B-DD/VT82C597 EIP: 0060:[] EFLAGS: 00010202 CPU: 0 EIP is at math_error+0x1b4/0x1c8 EAX: 00000003 EBX: cf9be7e0 ECX: 00000000 EDX: cf9c5c00 ESI: cf9d9fb4 EDI: c1372db3 EBP: 00000010 ESP: cf9d9f1c DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 Process fxsave-32-excep (pid: 1638, ti=cf9d8000 task=cf9be7e0 task.ti=cf9d8000) Stack: 00000000 00000301 00000004 00000000 00000000 cf9d3000 cf9da8f0 00000001 <0> 00000004 cf9b6b60 c1019a6b c1019a79 00000020 00000242 000001b6 cf9c5380 <0> cf806b40 cf791880 00000000 00000282 00000282 c108a213 00000020 cf9c5380 Call Trace: [] ? need_resched+0x11/0x1a [] ? should_resched+0x5/0x1f [] ? do_sys_open+0xbd/0xc7 [] ? do_sys_open+0xbd/0xc7 [] ? do_coprocessor_error+0x0/0x11 [] ? error_code+0x65/0x70 Code: a8 20 74 30 c7 44 24 0c 06 00 03 00 8d 54 24 04 89 d9 b8 08 00 00 00 e8 9b 6d 02 00 eb 16 8b 93 5c 02 00 00 eb 05 e9 04 ff ff ff <9b> dd 32 9b e9 16 ff ff ff 81 c4 84 00 00 00 5b 5e 5f 5d c3 c6 EIP: [] math_error+0x1b4/0x1c8 SS:ESP 0068:cf9d9f1c This usually continues in slight variations until the system is reset. This bug was introduced by commit 58a992b9cbaf449aeebd3575c3695a9eb5d95b5e: x86-32, fpu: Rewrite fpu_save_init() Signed-off-by: Hans Rosenfeld Link: http://lkml.kernel.org/r/1302106003-366952-1-git-send-email-hans.rosenfeld@amd.com Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/i387.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h index ef328901c80..c9e09ea0564 100644 --- a/arch/x86/include/asm/i387.h +++ b/arch/x86/include/asm/i387.h @@ -237,7 +237,7 @@ static inline void fpu_save_init(struct fpu *fpu) } else if (use_fxsr()) { fpu_fxsave(fpu); } else { - asm volatile("fsave %[fx]; fwait" + asm volatile("fnsave %[fx]; fwait" : [fx] "=m" (fpu->state->fsave)); return; } -- cgit v1.2.3-70-g09d2 From 5bbc097d890409d8eff4e3f1d26f11a9d6b7c07e Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 15 Apr 2011 14:47:40 +0200 Subject: x86, amd: Disable GartTlbWlkErr when BIOS forgets it This patch disables GartTlbWlk errors on AMD Fam10h CPUs if the BIOS forgets to do is (or is just too old). Letting these errors enabled can cause a sync-flood on the CPU causing a reboot. The AMD BKDG recommends disabling GART TLB Wlk Error completely. This patch is the fix for https://bugzilla.kernel.org/show_bug.cgi?id=33012 on my machine. Signed-off-by: Joerg Roedel Link: http://lkml.kernel.org/r/20110415131152.GJ18463@8bytes.org Tested-by: Alexandre Demers Cc: Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/msr-index.h | 4 ++++ arch/x86/kernel/cpu/amd.c | 19 +++++++++++++++++++ 2 files changed, 23 insertions(+) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index fd5a1f365c9..3cce71413d0 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -96,11 +96,15 @@ #define MSR_IA32_MC0_ADDR 0x00000402 #define MSR_IA32_MC0_MISC 0x00000403 +#define MSR_AMD64_MC0_MASK 0xc0010044 + #define MSR_IA32_MCx_CTL(x) (MSR_IA32_MC0_CTL + 4*(x)) #define MSR_IA32_MCx_STATUS(x) (MSR_IA32_MC0_STATUS + 4*(x)) #define MSR_IA32_MCx_ADDR(x) (MSR_IA32_MC0_ADDR + 4*(x)) #define MSR_IA32_MCx_MISC(x) (MSR_IA32_MC0_MISC + 4*(x)) +#define MSR_AMD64_MCx_MASK(x) (MSR_AMD64_MC0_MASK + (x)) + /* These are consecutive and not in the normal 4er MCE bank block */ #define MSR_IA32_MC0_CTL2 0x00000280 #define MSR_IA32_MCx_CTL2(x) (MSR_IA32_MC0_CTL2 + (x)) diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 3ecece0217e..3532d3bf810 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -615,6 +615,25 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) /* As a rule processors have APIC timer running in deep C states */ if (c->x86 >= 0xf && !cpu_has_amd_erratum(amd_erratum_400)) set_cpu_cap(c, X86_FEATURE_ARAT); + + /* + * Disable GART TLB Walk Errors on Fam10h. We do this here + * because this is always needed when GART is enabled, even in a + * kernel which has no MCE support built in. + */ + if (c->x86 == 0x10) { + /* + * BIOS should disable GartTlbWlk Errors themself. If + * it doesn't do it here as suggested by the BKDG. + * + * Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=33012 + */ + u64 mask; + + rdmsrl(MSR_AMD64_MCx_MASK(4), mask); + mask |= (1 << 10); + wrmsrl(MSR_AMD64_MCx_MASK(4), mask); + } } #ifdef CONFIG_X86_32 -- cgit v1.2.3-70-g09d2 From af289bfe15fc92ecfbf6d8312713815b33e452c0 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Mon, 18 Apr 2011 15:45:44 +0200 Subject: x86, gart: Convert spaces to tabs in enable_gart_translation Probably by copy&paste this function was indented by spaces. Convert this to tabs. Signed-off-by: Joerg Roedel Link: http://lkml.kernel.org/r/1303134346-5805-3-git-send-email-joerg.roedel@amd.com Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/gart.h | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/gart.h b/arch/x86/include/asm/gart.h index 43085bfc99c..88c1ebee0db 100644 --- a/arch/x86/include/asm/gart.h +++ b/arch/x86/include/asm/gart.h @@ -75,17 +75,17 @@ static inline void enable_gart_translation(struct pci_dev *dev, u64 addr) { u32 tmp, ctl; - /* address of the mappings table */ - addr >>= 12; - tmp = (u32) addr<<4; - tmp &= ~0xf; - pci_write_config_dword(dev, AMD64_GARTTABLEBASE, tmp); - - /* Enable GART translation for this hammer. */ - pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &ctl); - ctl |= GARTEN; - ctl &= ~(DISGARTCPU | DISGARTIO); - pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl); + /* address of the mappings table */ + addr >>= 12; + tmp = (u32) addr<<4; + tmp &= ~0xf; + pci_write_config_dword(dev, AMD64_GARTTABLEBASE, tmp); + + /* Enable GART translation for this hammer. */ + pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &ctl); + ctl |= GARTEN; + ctl &= ~(DISGARTCPU | DISGARTIO); + pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl); } static inline int aperture_valid(u64 aper_base, u32 aper_size, u32 min_size) -- cgit v1.2.3-70-g09d2 From c34151a742d84ae65db2088ea30495063f697fbe Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Mon, 18 Apr 2011 15:45:45 +0200 Subject: x86, gart: Set DISTLBWALKPRB bit always The DISTLBWALKPRB bit must be set for the GART because the gatt table is mapped UC. But the current code does not set the bit at boot when the BIOS setup the aperture correctly. Fix that by setting this bit when enabling the GART instead of the other places. Cc: Cc: Borislav Petkov Signed-off-by: Joerg Roedel Link: http://lkml.kernel.org/r/1303134346-5805-4-git-send-email-joerg.roedel@amd.com Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/gart.h | 4 ++-- arch/x86/kernel/aperture_64.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/gart.h b/arch/x86/include/asm/gart.h index 88c1ebee0db..156cd5d18d2 100644 --- a/arch/x86/include/asm/gart.h +++ b/arch/x86/include/asm/gart.h @@ -66,7 +66,7 @@ static inline void gart_set_size_and_enable(struct pci_dev *dev, u32 order) * Don't enable translation but enable GART IO and CPU accesses. * Also, set DISTLBWALKPRB since GART tables memory is UC. */ - ctl = DISTLBWALKPRB | order << 1; + ctl = order << 1; pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl); } @@ -83,7 +83,7 @@ static inline void enable_gart_translation(struct pci_dev *dev, u64 addr) /* Enable GART translation for this hammer. */ pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &ctl); - ctl |= GARTEN; + ctl |= GARTEN | DISTLBWALKPRB; ctl &= ~(DISGARTCPU | DISGARTIO); pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl); } diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index 86d1ad4962a..73fb469908c 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -499,7 +499,7 @@ out: * Don't enable translation yet but enable GART IO and CPU * accesses and set DISTLBWALKPRB since GART table memory is UC. */ - u32 ctl = DISTLBWALKPRB | aper_order << 1; + u32 ctl = aper_order << 1; bus = amd_nb_bus_dev_ranges[i].bus; dev_base = amd_nb_bus_dev_ranges[i].dev_base; -- cgit v1.2.3-70-g09d2 From 7a6c6547825a2324faa76cff856db11d78de075e Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Wed, 20 Apr 2011 19:19:13 -0700 Subject: x86, numa: Fix cpu nodemasks for NUMA emulation and CONFIG_DEBUG_PER_CPU_MAPS The cpu<->node mappings under CONFIG_DEBUG_PER_CPU_MAPS=y when NUMA emulation is enabled is currently broken because it does not iterate through every emulated node and bind cpus that have affinity to it. NUMA emulation should bind each cpu to every local node to accurately represent the true NUMA topology of the underlying machine. debug_cpumask_set_cpu() needs to be fixed at the same time so that the debugging information that it emits shows the new cpumask of the node being assigned when the cpu is being added or removed. It can now take responsibility of setting or clearing the cpu itself to remove the need for duplicate code. Also change its last parameter, "enable", to have the correct bool type since it can only be true or false. -v2: Fix the return statements, by Kosaki Motohiro Acked-and-Tested-by: KOSAKI Motohiro Signed-off-by: David Rientjes Cc: Andreas Herrmann Cc: Tejun Heo Cc: Linus Torvalds Link: http://lkml.kernel.org/r/alpine.DEB.2.00.1104201918470.12634@chino.kir.corp.google.com Signed-off-by: Ingo Molnar --- arch/x86/include/asm/numa.h | 2 +- arch/x86/mm/numa.c | 31 +++++++++++++------------------ arch/x86/mm/numa_emulation.c | 20 ++++++-------------- 3 files changed, 20 insertions(+), 33 deletions(-) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h index 3d4dab43c99..a50fc9f493b 100644 --- a/arch/x86/include/asm/numa.h +++ b/arch/x86/include/asm/numa.h @@ -51,7 +51,7 @@ static inline void numa_remove_cpu(int cpu) { } #endif /* CONFIG_NUMA */ #ifdef CONFIG_DEBUG_PER_CPU_MAPS -struct cpumask __cpuinit *debug_cpumask_set_cpu(int cpu, int enable); +void debug_cpumask_set_cpu(int cpu, int node, bool enable); #endif #endif /* _ASM_X86_NUMA_H */ diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index 9559d360fde..745258dfc4d 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -213,53 +213,48 @@ int early_cpu_to_node(int cpu) return per_cpu(x86_cpu_to_node_map, cpu); } -struct cpumask __cpuinit *debug_cpumask_set_cpu(int cpu, int enable) +void debug_cpumask_set_cpu(int cpu, int node, bool enable) { - int node = early_cpu_to_node(cpu); struct cpumask *mask; char buf[64]; if (node == NUMA_NO_NODE) { /* early_cpu_to_node() already emits a warning and trace */ - return NULL; + return; } mask = node_to_cpumask_map[node]; if (!mask) { pr_err("node_to_cpumask_map[%i] NULL\n", node); dump_stack(); - return NULL; + return; } + if (enable) + cpumask_set_cpu(cpu, mask); + else + cpumask_clear_cpu(cpu, mask); + cpulist_scnprintf(buf, sizeof(buf), mask); printk(KERN_DEBUG "%s cpu %d node %d: mask now %s\n", enable ? "numa_add_cpu" : "numa_remove_cpu", cpu, node, buf); - return mask; + return; } # ifndef CONFIG_NUMA_EMU -static void __cpuinit numa_set_cpumask(int cpu, int enable) +static void __cpuinit numa_set_cpumask(int cpu, bool enable) { - struct cpumask *mask; - - mask = debug_cpumask_set_cpu(cpu, enable); - if (!mask) - return; - - if (enable) - cpumask_set_cpu(cpu, mask); - else - cpumask_clear_cpu(cpu, mask); + debug_cpumask_set_cpu(cpu, early_cpu_to_node(cpu), enable); } void __cpuinit numa_add_cpu(int cpu) { - numa_set_cpumask(cpu, 1); + numa_set_cpumask(cpu, true); } void __cpuinit numa_remove_cpu(int cpu) { - numa_set_cpumask(cpu, 0); + numa_set_cpumask(cpu, false); } # endif /* !CONFIG_NUMA_EMU */ diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c index ad091e4cff1..de84cc14037 100644 --- a/arch/x86/mm/numa_emulation.c +++ b/arch/x86/mm/numa_emulation.c @@ -454,10 +454,9 @@ void __cpuinit numa_remove_cpu(int cpu) cpumask_clear_cpu(cpu, node_to_cpumask_map[i]); } #else /* !CONFIG_DEBUG_PER_CPU_MAPS */ -static void __cpuinit numa_set_cpumask(int cpu, int enable) +static void __cpuinit numa_set_cpumask(int cpu, bool enable) { - struct cpumask *mask; - int nid, physnid, i; + int nid, physnid; nid = early_cpu_to_node(cpu); if (nid == NUMA_NO_NODE) { @@ -467,28 +466,21 @@ static void __cpuinit numa_set_cpumask(int cpu, int enable) physnid = emu_nid_to_phys[nid]; - for_each_online_node(i) { + for_each_online_node(nid) { if (emu_nid_to_phys[nid] != physnid) continue; - mask = debug_cpumask_set_cpu(cpu, enable); - if (!mask) - return; - - if (enable) - cpumask_set_cpu(cpu, mask); - else - cpumask_clear_cpu(cpu, mask); + debug_cpumask_set_cpu(cpu, nid, enable); } } void __cpuinit numa_add_cpu(int cpu) { - numa_set_cpumask(cpu, 1); + numa_set_cpumask(cpu, true); } void __cpuinit numa_remove_cpu(int cpu) { - numa_set_cpumask(cpu, 0); + numa_set_cpumask(cpu, false); } #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ -- cgit v1.2.3-70-g09d2