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sh: wire up clear_user_highpage() for sh4, convert sh7705.

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This wires up clear_user_highpage() on SH-4 and subsequently converts the
SH7705 32kB cache mode over to using it. Now that the SH-4 implementation
handles all of the dcache purging directly in the aliasing case, there is
no need to do this in the default clear_page() implementation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2009-07-27 20:53:22 +09:00
parent 2277ab4a1d
commit dfff0fa65a
9 changed files with 27 additions and 182 deletions
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3
arch/sh/include/asm/pgtable.h
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@@ -141,7 +141,8 @@ extern void paging_init(void);
extern void page_table_range_init(unsigned long start, unsigned long end,
pgd_t *pgd);
#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_CPU_SH4) && defined(CONFIG_MMU)
#if !defined(CONFIG_CACHE_OFF) && (defined(CONFIG_CPU_SH4) || \
defined(CONFIG_SH7705_CACHE_32KB)) && defined(CONFIG_MMU)
extern void kmap_coherent_init(void);
#else
#define kmap_coherent_init() do { } while (0)