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| author | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:36:17 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:36:17 +0900 |
| commit | f3c2575818fab45f8609e4aef2e43ab02b3a142e (patch) | |
| tree | a4924d7dd8f8df229e36fab24ccccfe12437509b /include/asm-sh | |
| parent | 87b0ef91b6f27c07bf7dcce8584437481f473092 (diff) | |
| download | kernel_samsung_smdk4412-f3c2575818fab45f8609e4aef2e43ab02b3a142e.tar.gz kernel_samsung_smdk4412-f3c2575818fab45f8609e4aef2e43ab02b3a142e.tar.bz2 kernel_samsung_smdk4412-f3c2575818fab45f8609e4aef2e43ab02b3a142e.zip | |
sh: Calculate shm alignment at runtime.
Set the SHM alignment at runtime, based off of probed cache desc.
Optimize get_unmapped_area() to only colour align shared mappings.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh')
| -rw-r--r-- | include/asm-sh/cacheflush.h | 2 | ||||
| -rw-r--r-- | include/asm-sh/cpu-sh3/cacheflush.h | 8 | ||||
| -rw-r--r-- | include/asm-sh/cpu-sh4/cacheflush.h | 3 | ||||
| -rw-r--r-- | include/asm-sh/page.h | 2 | ||||
| -rw-r--r-- | include/asm-sh/pgtable.h | 2 |
5 files changed, 4 insertions, 13 deletions
diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h index 92930b4a40d..07f62ec9ff0 100644 --- a/include/asm-sh/cacheflush.h +++ b/include/asm-sh/cacheflush.h @@ -28,5 +28,7 @@ extern void __flush_invalidate_region(void *start, int size); memcpy(dst, src, len); \ } while (0) +#define HAVE_ARCH_UNMAPPED_AREA + #endif /* __KERNEL__ */ #endif /* __ASM_SH_CACHEFLUSH_H */ diff --git a/include/asm-sh/cpu-sh3/cacheflush.h b/include/asm-sh/cpu-sh3/cacheflush.h index 97f5a64c2ab..03fde97a7fd 100644 --- a/include/asm-sh/cpu-sh3/cacheflush.h +++ b/include/asm-sh/cpu-sh3/cacheflush.h @@ -64,12 +64,4 @@ void flush_icache_page(struct vm_area_struct *vma, struct page *page); #define p3_cache_init() do { } while (0) -/* - * We provide our own get_unmapped_area to avoid cache aliasing issues - * on SH7705 with a 32KB cache, and to page align addresses in the - * non-aliasing case. - */ -#define HAVE_ARCH_UNMAPPED_AREA - #endif /* __ASM_CPU_SH3_CACHEFLUSH_H */ - diff --git a/include/asm-sh/cpu-sh4/cacheflush.h b/include/asm-sh/cpu-sh4/cacheflush.h index a95fc951aff..515fd574267 100644 --- a/include/asm-sh/cpu-sh4/cacheflush.h +++ b/include/asm-sh/cpu-sh4/cacheflush.h @@ -39,9 +39,6 @@ void p3_cache_init(void); #define PG_mapped PG_arch_1 -/* We provide our own get_unmapped_area to avoid cache alias issue */ -#define HAVE_ARCH_UNMAPPED_AREA - #ifdef CONFIG_MMU extern int remap_area_pages(unsigned long addr, unsigned long phys_addr, unsigned long size, unsigned long flags); diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 3d8dae31a6f..ca8b26d9047 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -44,6 +44,8 @@ extern void (*clear_page)(void *to); extern void (*copy_page)(void *to, void *from); +extern unsigned long shm_align_mask; + #ifdef CONFIG_MMU extern void clear_page_slow(void *to); extern void copy_page_slow(void *to, void *from); diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h index 41c559d8ba8..2c8682ad101 100644 --- a/include/asm-sh/pgtable.h +++ b/include/asm-sh/pgtable.h @@ -340,6 +340,4 @@ extern pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t #include <asm-generic/pgtable.h> #endif /* !__ASSEMBLY__ */ - #endif /* __ASM_SH_PAGE_H */ - |