1#ifndef _ASM_IA64_CACHEFLUSH_H
 2#define _ASM_IA64_CACHEFLUSH_H
 3
 4/*
 5 * Copyright (C) 2002 Hewlett-Packard Co
 6 *	David Mosberger-Tang <davidm@hpl.hp.com>
 7 */
 8
 9#include <linux/page-flags.h>
10#include <linux/bitops.h>
11
12#include <asm/page.h>
13
14/*
15 * Cache flushing routines.  This is the kind of stuff that can be very expensive, so try
16 * to avoid them whenever possible.
17 */
18
19#define flush_cache_all()			do { } while (0)
20#define flush_cache_mm(mm)			do { } while (0)
21#define flush_cache_dup_mm(mm)			do { } while (0)
22#define flush_cache_range(vma, start, end)	do { } while (0)
23#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
24#define flush_icache_page(vma,page)		do { } while (0)
25#define flush_cache_vmap(start, end)		do { } while (0)
26#define flush_cache_vunmap(start, end)		do { } while (0)
27
28#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
29#define flush_dcache_page(page)			\
30do {						\
31	clear_bit(PG_arch_1, &(page)->flags);	\
32} while (0)
33
34#define flush_dcache_mmap_lock(mapping)		do { } while (0)
35#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
36
37extern void flush_icache_range (unsigned long start, unsigned long end);
38extern void clflush_cache_range(void *addr, int size);
39
40
41#define flush_icache_user_range(vma, page, user_addr, len)					\
42do {												\
43	unsigned long _addr = (unsigned long) page_address(page) + ((user_addr) & ~PAGE_MASK);	\
44	flush_icache_range(_addr, _addr + (len));						\
45} while (0)
46
47#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
48do { memcpy(dst, src, len); \
49     flush_icache_user_range(vma, page, vaddr, len); \
50} while (0)
51#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
52	memcpy(dst, src, len)
53
54#endif /* _ASM_IA64_CACHEFLUSH_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_IA64_CACHEFLUSH_H
 3#define _ASM_IA64_CACHEFLUSH_H
 4
 5/*
 6 * Copyright (C) 2002 Hewlett-Packard Co
 7 *	David Mosberger-Tang <davidm@hpl.hp.com>
 8 */
 9
10#include <linux/page-flags.h>
11#include <linux/bitops.h>
12
13#include <asm/page.h>
14
15/*
16 * Cache flushing routines.  This is the kind of stuff that can be very expensive, so try
17 * to avoid them whenever possible.
18 */
19
20#define flush_cache_all()			do { } while (0)
21#define flush_cache_mm(mm)			do { } while (0)
22#define flush_cache_dup_mm(mm)			do { } while (0)
23#define flush_cache_range(vma, start, end)	do { } while (0)
24#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
25#define flush_icache_page(vma,page)		do { } while (0)
26#define flush_cache_vmap(start, end)		do { } while (0)
27#define flush_cache_vunmap(start, end)		do { } while (0)
28
29#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
30#define flush_dcache_page(page)			\
31do {						\
32	clear_bit(PG_arch_1, &(page)->flags);	\
33} while (0)
34
35#define flush_dcache_mmap_lock(mapping)		do { } while (0)
36#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
37
38extern void flush_icache_range (unsigned long start, unsigned long end);
39extern void clflush_cache_range(void *addr, int size);
40
41
42#define flush_icache_user_range(vma, page, user_addr, len)					\
43do {												\
44	unsigned long _addr = (unsigned long) page_address(page) + ((user_addr) & ~PAGE_MASK);	\
45	flush_icache_range(_addr, _addr + (len));						\
46} while (0)
47
48#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
49do { memcpy(dst, src, len); \
50     flush_icache_user_range(vma, page, vaddr, len); \
51} while (0)
52#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
53	memcpy(dst, src, len)
54
55#endif /* _ASM_IA64_CACHEFLUSH_H */