diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-01-11 15:34:05 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-01-11 15:34:05 +0100 |
commit | d19b85db9d5c44a4c21dcb10d6fbadaa4425ab2a (patch) | |
tree | 250be7a5a29069f7d1f4524fa45ab0e988833025 /include/asm-xtensa/cacheflush.h | |
parent | 490dea45d00f01847ebebd007685d564aaf2cd98 (diff) | |
parent | c59765042f53a79a7a65585042ff463b69cb248c (diff) |
Merge commit 'v2.6.29-rc1' into timers/urgent
Diffstat (limited to 'include/asm-xtensa/cacheflush.h')
-rw-r--r-- | include/asm-xtensa/cacheflush.h | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/include/asm-xtensa/cacheflush.h b/include/asm-xtensa/cacheflush.h deleted file mode 100644 index 94c4c53a099..00000000000 --- a/include/asm-xtensa/cacheflush.h +++ /dev/null @@ -1,155 +0,0 @@ -/* - * include/asm-xtensa/cacheflush.h - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * (C) 2001 - 2007 Tensilica Inc. - */ - -#ifndef _XTENSA_CACHEFLUSH_H -#define _XTENSA_CACHEFLUSH_H - -#ifdef __KERNEL__ - -#include <linux/mm.h> -#include <asm/processor.h> -#include <asm/page.h> - -/* - * Lo-level routines for cache flushing. - * - * invalidate data or instruction cache: - * - * __invalidate_icache_all() - * __invalidate_icache_page(adr) - * __invalidate_dcache_page(adr) - * __invalidate_icache_range(from,size) - * __invalidate_dcache_range(from,size) - * - * flush data cache: - * - * __flush_dcache_page(adr) - * - * flush and invalidate data cache: - * - * __flush_invalidate_dcache_all() - * __flush_invalidate_dcache_page(adr) - * __flush_invalidate_dcache_range(from,size) - * - * specials for cache aliasing: - * - * __flush_invalidate_dcache_page_alias(vaddr,paddr) - * __invalidate_icache_page_alias(vaddr,paddr) - */ - -extern void __invalidate_dcache_all(void); -extern void __invalidate_icache_all(void); -extern void __invalidate_dcache_page(unsigned long); -extern void __invalidate_icache_page(unsigned long); -extern void __invalidate_icache_range(unsigned long, unsigned long); -extern void __invalidate_dcache_range(unsigned long, unsigned long); - - -#if XCHAL_DCACHE_IS_WRITEBACK -extern void __flush_invalidate_dcache_all(void); -extern void __flush_dcache_page(unsigned long); -extern void __flush_dcache_range(unsigned long, unsigned long); -extern void __flush_invalidate_dcache_page(unsigned long); -extern void __flush_invalidate_dcache_range(unsigned long, unsigned long); -#else -# define __flush_dcache_range(p,s) do { } while(0) -# define __flush_dcache_page(p) do { } while(0) -# define __flush_invalidate_dcache_page(p) __invalidate_dcache_page(p) -# define __flush_invalidate_dcache_range(p,s) __invalidate_dcache_range(p,s) -#endif - -#if (DCACHE_WAY_SIZE > PAGE_SIZE) -extern void __flush_invalidate_dcache_page_alias(unsigned long, unsigned long); -#endif -#if (ICACHE_WAY_SIZE > PAGE_SIZE) -extern void __invalidate_icache_page_alias(unsigned long, unsigned long); -#else -# define __invalidate_icache_page_alias(v,p) do { } while(0) -#endif - -/* - * We have physically tagged caches - nothing to do here - - * unless we have cache aliasing. - * - * Pages can get remapped. Because this might change the 'color' of that page, - * we have to flush the cache before the PTE is changed. - * (see also Documentation/cachetlb.txt) - */ - -#if (DCACHE_WAY_SIZE > PAGE_SIZE) - -#define flush_cache_all() \ - do { \ - __flush_invalidate_dcache_all(); \ - __invalidate_icache_all(); \ - } while (0) - -#define flush_cache_mm(mm) flush_cache_all() -#define flush_cache_dup_mm(mm) flush_cache_mm(mm) - -#define flush_cache_vmap(start,end) flush_cache_all() -#define flush_cache_vunmap(start,end) flush_cache_all() - -extern void flush_dcache_page(struct page*); -extern void flush_cache_range(struct vm_area_struct*, ulong, ulong); -extern void flush_cache_page(struct vm_area_struct*, unsigned long, unsigned long); - -#else - -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_dup_mm(mm) do { } while (0) - -#define flush_cache_vmap(start,end) do { } while (0) -#define flush_cache_vunmap(start,end) do { } while (0) - -#define flush_dcache_page(page) do { } while (0) - -#define flush_cache_page(vma,addr,pfn) do { } while (0) -#define flush_cache_range(vma,start,end) do { } while (0) - -#endif - -/* Ensure consistency between data and instruction cache. */ -#define flush_icache_range(start,end) \ - do { \ - __flush_dcache_range(start, (end) - (start)); \ - __invalidate_icache_range(start,(end) - (start)); \ - } while (0) - -/* This is not required, see Documentation/cachetlb.txt */ -#define flush_icache_page(vma,page) do { } while (0) - -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) - -#if (DCACHE_WAY_SIZE > PAGE_SIZE) - -extern void copy_to_user_page(struct vm_area_struct*, struct page*, - unsigned long, void*, const void*, unsigned long); -extern void copy_from_user_page(struct vm_area_struct*, struct page*, - unsigned long, void*, const void*, unsigned long); - -#else - -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ - do { \ - memcpy(dst, src, len); \ - __flush_dcache_range((unsigned long) dst, len); \ - __invalidate_icache_range((unsigned long) dst, len); \ - } while (0) - -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) - -#endif - -#endif /* __KERNEL__ */ -#endif /* _XTENSA_CACHEFLUSH_H */ |