Linux 2.6.16.22
[linux/fpc-iii.git] / include / asm-ia64 / cacheflush.h
blobf2dacb4245ec15580b8e8341b460225a7c3edbea
1 #ifndef _ASM_IA64_CACHEFLUSH_H
2 #define _ASM_IA64_CACHEFLUSH_H
4 /*
5 * Copyright (C) 2002 Hewlett-Packard Co
6 * David Mosberger-Tang <davidm@hpl.hp.com>
7 */
9 #include <linux/page-flags.h>
11 #include <asm/bitops.h>
12 #include <asm/page.h>
15 * Cache flushing routines. This is the kind of stuff that can be very expensive, so try
16 * to avoid them whenever possible.
19 #define flush_cache_all() do { } while (0)
20 #define flush_cache_mm(mm) do { } while (0)
21 #define flush_cache_range(vma, start, end) do { } while (0)
22 #define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
23 #define flush_icache_page(vma,page) do { } while (0)
24 #define flush_cache_vmap(start, end) do { } while (0)
25 #define flush_cache_vunmap(start, end) do { } while (0)
27 #define flush_dcache_page(page) \
28 do { \
29 clear_bit(PG_arch_1, &(page)->flags); \
30 } while (0)
32 #define flush_dcache_mmap_lock(mapping) do { } while (0)
33 #define flush_dcache_mmap_unlock(mapping) do { } while (0)
35 extern void flush_icache_range (unsigned long start, unsigned long end);
37 #define flush_icache_user_range(vma, page, user_addr, len) \
38 do { \
39 unsigned long _addr = (unsigned long) page_address(page) + ((user_addr) & ~PAGE_MASK); \
40 flush_icache_range(_addr, _addr + (len)); \
41 } while (0)
43 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
44 do { memcpy(dst, src, len); \
45 flush_icache_user_range(vma, page, vaddr, len); \
46 } while (0)
47 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
48 memcpy(dst, src, len)
50 #endif /* _ASM_IA64_CACHEFLUSH_H */