summaryrefslogtreecommitdiffstats
path: root/include/asm-sh/page.h
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2007-07-31 17:07:28 +0900
committerPaul Mundt <lethal@linux-sh.org>2007-09-21 11:57:46 +0900
commite7bd34a15b85655f24d1b45edbe3bdfebf9d027e (patch)
tree051647273266582fe95dcc5cf008534c264be5ae /include/asm-sh/page.h
parentac919986d7dfc5d1d9f5585521307f222a8ebeaf (diff)
downloadop-kernel-dev-e7bd34a15b85655f24d1b45edbe3bdfebf9d027e.zip
op-kernel-dev-e7bd34a15b85655f24d1b45edbe3bdfebf9d027e.tar.gz
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.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index 6bc9bba..48b718e 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
OpenPOWER on IntegriCloud