1/* 2 * include/asm-sh/cpu-sh2/cacheflush.h 3 * 4 * Copyright (C) 2003 Paul Mundt 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 */ 10#ifndef __ASM_CPU_SH2_CACHEFLUSH_H 11#define __ASM_CPU_SH2_CACHEFLUSH_H 12 13/* 14 * Cache flushing: 15 * 16 * - flush_cache_all() flushes entire cache 17 * - flush_cache_mm(mm) flushes the specified mm context's cache lines 18 * - flush_cache_dup mm(mm) handles cache flushing when forking 19 * - flush_cache_page(mm, vmaddr, pfn) flushes a single page 20 * - flush_cache_range(vma, start, end) flushes a range of pages 21 * 22 * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache 23 * - flush_icache_range(start, end) flushes(invalidates) a range for icache 24 * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache 25 * 26 * Caches are indexed (effectively) by physical address on SH-2, so 27 * we don't need them. 28 */ 29#define flush_cache_all() do { } while (0) 30#define flush_cache_mm(mm) do { } while (0) 31#define flush_cache_dup_mm(mm) do { } while (0) 32#define flush_cache_range(vma, start, end) do { } while (0) 33#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) 34#define flush_dcache_page(page) do { } while (0) 35#define flush_dcache_mmap_lock(mapping) do { } while (0) 36#define flush_dcache_mmap_unlock(mapping) do { } while (0) 37#define flush_icache_range(start, end) do { } while (0) 38#define flush_icache_page(vma,pg) do { } while (0) 39#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) 40#define flush_cache_sigtramp(vaddr) do { } while (0) 41 42#define p3_cache_init() do { } while (0) 43#endif /* __ASM_CPU_SH2_CACHEFLUSH_H */ 44 45