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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/pgtable.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/pgtable.h')
-rw-r--r--include/asm-sh/pgtable.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index e3fae12..54ad503 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -563,7 +563,8 @@ struct mm_struct;
extern unsigned int kobjsize(const void *objp);
#endif /* !CONFIG_MMU */
-#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB)
+#if !defined(CONFIG_CACHE_OFF) && (defined(CONFIG_CPU_SH4) || \
+ defined(CONFIG_SH7705_CACHE_32KB))
#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
extern pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
#endif
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