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-rw-r--r--arch/c6x/include/asm/cacheflush.h65
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diff --git a/arch/c6x/include/asm/cacheflush.h b/arch/c6x/include/asm/cacheflush.h
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1/*
2 * Port on Texas Instruments TMS320C6x architecture
3 *
4 * Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
5 * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef _ASM_C6X_CACHEFLUSH_H
12#define _ASM_C6X_CACHEFLUSH_H
13
14#include <linux/spinlock.h>
15
16#include <asm/setup.h>
17#include <asm/cache.h>
18#include <asm/mman.h>
19#include <asm/page.h>
20#include <asm/string.h>
21
22/*
23 * virtually-indexed cache management (our cache is physically indexed)
24 */
25#define flush_cache_all() do {} while (0)
26#define flush_cache_mm(mm) do {} while (0)
27#define flush_cache_dup_mm(mm) do {} while (0)
28#define flush_cache_range(mm, start, end) do {} while (0)
29#define flush_cache_page(vma, vmaddr, pfn) do {} while (0)
30#define flush_cache_vmap(start, end) do {} while (0)
31#define flush_cache_vunmap(start, end) do {} while (0)
32#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
33#define flush_dcache_page(page) do {} while (0)
34#define flush_dcache_mmap_lock(mapping) do {} while (0)
35#define flush_dcache_mmap_unlock(mapping) do {} while (0)
36
37/*
38 * physically-indexed cache management
39 */
40#define flush_icache_range(s, e) \
41do { \
42 L1D_cache_block_writeback((s), (e)); \
43 L1P_cache_block_invalidate((s), (e)); \
44} while (0)
45
46#define flush_icache_page(vma, page) \
47do { \
48 if ((vma)->vm_flags & PROT_EXEC) \
49 L1D_cache_block_writeback_invalidate(page_address(page), \
50 (unsigned long) page_address(page) + PAGE_SIZE)); \
51 L1P_cache_block_invalidate(page_address(page), \
52 (unsigned long) page_address(page) + PAGE_SIZE)); \
53} while (0)
54
55
56#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
57do { \
58 memcpy(dst, src, len); \
59 flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \
60} while (0)
61
62#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
63 memcpy(dst, src, len)
64
65#endif /* _ASM_C6X_CACHEFLUSH_H */