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 */
66