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| author | Paul Mundt <lethal@linux-sh.org> | 2007-07-31 17:07:28 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2007-09-21 11:57:46 +0900 |
| commit | e7bd34a15b85655f24d1b45edbe3bdfebf9d027e (patch) | |
| tree | 051647273266582fe95dcc5cf008534c264be5ae /include/asm-sh/page.h | |
| parent | ac919986d7dfc5d1d9f5585521307f222a8ebeaf (diff) | |
| download | linux-e7bd34a15b85655f24d1b45edbe3bdfebf9d027e.tar.gz linux-e7bd34a15b85655f24d1b45edbe3bdfebf9d027e.tar.bz2 linux-e7bd34a15b85655f24d1b45edbe3bdfebf9d027e.zip | |
sh: Support explicit L1 cache disabling.
This reworks the cache mode configuration in Kconfig, and allows for
explicit selection of write-back/write-through/off configurations.
All of the cache flushing routines are optimized away for the off
case.
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 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 6bc9bba10105..48b718e7455c 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -70,14 +70,14 @@ extern void clear_page_nommu(void *to); extern void copy_page_nommu(void *to, void *from); #endif -#if defined(CONFIG_MMU) && (defined(CONFIG_CPU_SH4) || \ - defined(CONFIG_SH7705_CACHE_32KB)) +#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \ + (defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB)) struct page; extern void clear_user_page(void *to, unsigned long address, struct page *pg); extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg); extern void __clear_user_page(void *to, void *orig_to); extern void __copy_user_page(void *to, void *from, void *orig_to); -#elif defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH3) || !defined(CONFIG_MMU) +#else #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) #endif |