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| author | Paul Mundt <lethal@linux-sh.org> | 2007-11-10 11:57:58 +0100 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-28 05:18:43 +0100 |
| commit | 01fed9311ab8a724283b3f456c12e573cb51d92b (patch) | |
| tree | a270222feed305e586c779063df50b1447ef877f /include/asm-sh/page.h | |
| parent | sh: Split out uaccess.h in to _32 and _64 variants. (diff) | |
| download | linux-01fed9311ab8a724283b3f456c12e573cb51d92b.tar.xz linux-01fed9311ab8a724283b3f456c12e573cb51d92b.zip | |
sh: Consolidate slab/kmalloc minalign values.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/page.h')
| -rw-r--r-- | include/asm-sh/page.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index d00a8fde7c7f..d0273dbce6be 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -157,8 +157,22 @@ typedef struct { unsigned long pgd; } pgd_t; * Slub defaults to 8-byte alignment, we're only interested in 4. * Slab defaults to BYTES_PER_WORD, which ends up being the same anyways. */ +#ifdef CONFIG_SUPERH32 #define ARCH_KMALLOC_MINALIGN 4 #define ARCH_SLAB_MINALIGN 4 +#else +/* If gcc inlines memset, it will use st.q instructions. Therefore, we need + kmalloc allocations to be 8-byte aligned. Without this, the alignment + becomes BYTE_PER_WORD i.e. only 4 (since sizeof(long)==sizeof(void*)==4 on + sh64 at the moment). */ +#define ARCH_KMALLOC_MINALIGN 8 + +/* + * We want 8-byte alignment for the slab caches as well, otherwise we have + * the same BYTES_PER_WORD (sizeof(void *)) min align in kmem_cache_create(). + */ +#define ARCH_SLAB_MINALIGN 8 +#endif #endif /* __KERNEL__ */ #endif /* __ASM_SH_PAGE_H */ |