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Diffstat (limited to 'arch/sh/include/asm/thread_info.h')
-rw-r--r--arch/sh/include/asm/thread_info.h32
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 0a894cafb1dd..f09ac4806294 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__ */