diff options
Diffstat (limited to 'include/asm-frv/cacheflush.h')
-rw-r--r-- | include/asm-frv/cacheflush.h | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/include/asm-frv/cacheflush.h b/include/asm-frv/cacheflush.h deleted file mode 100644 index 432a69e7f3d..00000000000 --- a/include/asm-frv/cacheflush.h +++ /dev/null @@ -1,104 +0,0 @@ -/* cacheflush.h: FRV cache flushing routines - * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _ASM_CACHEFLUSH_H -#define _ASM_CACHEFLUSH_H - -/* Keep includes the same across arches. */ -#include <linux/mm.h> - -/* - * virtually-indexed cache management (our cache is physically indexed) - */ -#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_range(mm, start, end) do {} while(0) -#define flush_cache_page(vma, vmaddr, pfn) do {} while(0) -#define flush_cache_vmap(start, end) do {} while(0) -#define flush_cache_vunmap(start, end) do {} while(0) -#define flush_dcache_mmap_lock(mapping) do {} while(0) -#define flush_dcache_mmap_unlock(mapping) do {} while(0) - -/* - * physically-indexed cache management - * - see arch/frv/lib/cache.S - */ -extern void frv_dcache_writeback(unsigned long start, unsigned long size); -extern void frv_cache_invalidate(unsigned long start, unsigned long size); -extern void frv_icache_invalidate(unsigned long start, unsigned long size); -extern void frv_cache_wback_inv(unsigned long start, unsigned long size); - -static inline void __flush_cache_all(void) -{ - asm volatile(" dcef @(gr0,gr0),#1 \n" - " icei @(gr0,gr0),#1 \n" - " membar \n" - : : : "memory" - ); -} - -/* dcache/icache coherency... */ -#ifdef CONFIG_MMU -extern void flush_dcache_page(struct page *page); -#else -static inline void flush_dcache_page(struct page *page) -{ - unsigned long addr = page_to_phys(page); - frv_dcache_writeback(addr, addr + PAGE_SIZE); -} -#endif - -static inline void flush_page_to_ram(struct page *page) -{ - flush_dcache_page(page); -} - -static inline void flush_icache(void) -{ - __flush_cache_all(); -} - -static inline void flush_icache_range(unsigned long start, unsigned long end) -{ - frv_cache_wback_inv(start, end); -} - -#ifdef CONFIG_MMU -extern void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, - unsigned long start, unsigned long len); -#else -static inline void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, - unsigned long start, unsigned long len) -{ - frv_cache_wback_inv(start, start + len); -} -#endif - -static inline void flush_icache_page(struct vm_area_struct *vma, struct page *page) -{ - flush_icache_user_range(vma, page, page_to_phys(page), PAGE_SIZE); -} - -/* - * permit ptrace to access another process's address space through the icache - * and the dcache - */ -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ -do { \ - memcpy((dst), (src), (len)); \ - flush_icache_user_range((vma), (page), (vaddr), (len)); \ -} while(0) - -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy((dst), (src), (len)) - -#endif /* _ASM_CACHEFLUSH_H */ |