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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-21 15:52:04 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-21 15:52:04 +1100 |
| commit | a02efb906d12c9d4eb2ab7c59049ba9545e5412d (patch) | |
| tree | bf1f6467978ec63a22f42299ecac2ee7f7e73336 /arch/sh/include/asm/thread_info.h | |
| parent | 84dfcb4b318463cd4883b6a19937824f49aee564 (diff) | |
| parent | 2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff) | |
Merge commit 'origin' into master
Manual merge of:
arch/powerpc/Kconfig
arch/powerpc/include/asm/page.h
Diffstat (limited to 'arch/sh/include/asm/thread_info.h')
| -rw-r--r-- | arch/sh/include/asm/thread_info.h | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h index 0a894cafb1d..f09ac480629 100644 --- a/arch/sh/include/asm/thread_info.h +++ b/arch/sh/include/asm/thread_info.h @@ -33,20 +33,12 @@ struct thread_info { #define PREEMPT_ACTIVE 0x10000000 #if defined(CONFIG_4KSTACKS) -#define THREAD_SIZE_ORDER (0) -#elif defined(CONFIG_PAGE_SIZE_4KB) -#define THREAD_SIZE_ORDER (1) -#elif defined(CONFIG_PAGE_SIZE_8KB) -#define THREAD_SIZE_ORDER (1) -#elif defined(CONFIG_PAGE_SIZE_16KB) -#define THREAD_SIZE_ORDER (0) -#elif defined(CONFIG_PAGE_SIZE_64KB) -#define THREAD_SIZE_ORDER (0) +#define THREAD_SHIFT 12 #else -#error "Unknown thread size" +#define THREAD_SHIFT 13 #endif -#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) +#define THREAD_SIZE (1 << THREAD_SHIFT) #define STACK_WARN (THREAD_SIZE >> 3) /* @@ -94,15 +86,19 @@ static inline struct thread_info *current_thread_info(void) return ti; } +/* thread information allocation */ +#if THREAD_SHIFT >= PAGE_SHIFT + +#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT) + +#else /* THREAD_SHIFT < PAGE_SHIFT */ + #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR -/* thread information allocation */ -#ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(ti) kzalloc(THREAD_SIZE, GFP_KERNEL) -#else -#define alloc_thread_info(ti) kmalloc(THREAD_SIZE, GFP_KERNEL) -#endif -#define free_thread_info(ti) kfree(ti) +extern struct thread_info *alloc_thread_info(struct task_struct *tsk); +extern void free_thread_info(struct thread_info *ti); + +#endif /* THREAD_SHIFT < PAGE_SHIFT */ #endif /* __ASSEMBLY__ */ |