diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-07 14:08:56 -0400 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-07 14:08:56 -0400 |
commit | 5a89770daad83df74d77a8d34a1ffaedae565ce9 (patch) | |
tree | 0d8ef70293a6ef969ba8b7718e59608337643d40 /arch/blackfin/include/asm/cacheflush.h | |
parent | c46c948260f41af18b277c1eb1895d788d3605dc (diff) | |
parent | af7c951d76708c61b862463d579d76be757130bf (diff) |
Merge branches 'pxa-core' and 'pxa-machines' into pxa-all
Conflicts:
arch/arm/mach-pxa/Kconfig
arch/arm/mach-pxa/pxa25x.c
arch/arm/mach-pxa/pxa27x.c
Diffstat (limited to 'arch/blackfin/include/asm/cacheflush.h')
-rw-r--r-- | arch/blackfin/include/asm/cacheflush.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h new file mode 100644 index 000000000000..d81a77545a04 --- /dev/null +++ b/arch/blackfin/include/asm/cacheflush.h | |||
@@ -0,0 +1,90 @@ | |||
1 | /* | ||
2 | * File: include/asm-blackfin/cacheflush.h | ||
3 | * Based on: include/asm-m68knommu/cacheflush.h | ||
4 | * Author: LG Soft India | ||
5 | * Copyright (C) 2004 Analog Devices Inc. | ||
6 | * Created: Tue Sep 21 2004 | ||
7 | * Description: Blackfin low-level cache routines adapted from the i386 | ||
8 | * and PPC versions by Greg Ungerer (gerg@snapgear.com) | ||
9 | * | ||
10 | * Modified: | ||
11 | * | ||
12 | * Bugs: Enter bugs at http://blackfin.uclinux.org/ | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or modify | ||
15 | * it under the terms of the GNU General Public License as published by | ||
16 | * the Free Software Foundation; either version 2, or (at your option) | ||
17 | * any later version. | ||
18 | * | ||
19 | * This program is distributed in the hope that it will be useful, | ||
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
22 | * GNU General Public License for more details. | ||
23 | * | ||
24 | * You should have received a copy of the GNU General Public License | ||
25 | * along with this program; see the file COPYING. | ||
26 | * If not, write to the Free Software Foundation, | ||
27 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
28 | */ | ||
29 | |||
30 | #ifndef _BLACKFIN_CACHEFLUSH_H | ||
31 | #define _BLACKFIN_CACHEFLUSH_H | ||
32 | |||
33 | #include <asm/cplb.h> | ||
34 | |||
35 | extern void blackfin_icache_dcache_flush_range(unsigned int, unsigned int); | ||
36 | extern void blackfin_icache_flush_range(unsigned int, unsigned int); | ||
37 | extern void blackfin_dcache_flush_range(unsigned int, unsigned int); | ||
38 | extern void blackfin_dcache_invalidate_range(unsigned int, unsigned int); | ||
39 | extern void blackfin_dflush_page(void *); | ||
40 | |||
41 | #define flush_dcache_mmap_lock(mapping) do { } while (0) | ||
42 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) | ||
43 | #define flush_cache_mm(mm) do { } while (0) | ||
44 | #define flush_cache_range(vma, start, end) do { } while (0) | ||
45 | #define flush_cache_page(vma, vmaddr) do { } while (0) | ||
46 | #define flush_cache_vmap(start, end) do { } while (0) | ||
47 | #define flush_cache_vunmap(start, end) do { } while (0) | ||
48 | |||
49 | static inline void flush_icache_range(unsigned start, unsigned end) | ||
50 | { | ||
51 | #if defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_ICACHE) | ||
52 | |||
53 | # if defined(CONFIG_BFIN_WT) | ||
54 | blackfin_icache_flush_range((start), (end)); | ||
55 | # else | ||
56 | blackfin_icache_dcache_flush_range((start), (end)); | ||
57 | # endif | ||
58 | |||
59 | #else | ||
60 | |||
61 | # if defined(CONFIG_BFIN_ICACHE) | ||
62 | blackfin_icache_flush_range((start), (end)); | ||
63 | # endif | ||
64 | # if defined(CONFIG_BFIN_DCACHE) | ||
65 | blackfin_dcache_flush_range((start), (end)); | ||
66 | # endif | ||
67 | |||
68 | #endif | ||
69 | } | ||
70 | |||
71 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | ||
72 | do { memcpy(dst, src, len); \ | ||
73 | flush_icache_range ((unsigned) (dst), (unsigned) (dst) + (len)); \ | ||
74 | } while (0) | ||
75 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) memcpy(dst, src, len) | ||
76 | |||
77 | #if defined(CONFIG_BFIN_DCACHE) | ||
78 | # define invalidate_dcache_range(start,end) blackfin_dcache_invalidate_range((start), (end)) | ||
79 | #else | ||
80 | # define invalidate_dcache_range(start,end) do { } while (0) | ||
81 | #endif | ||
82 | #if defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_WB) | ||
83 | # define flush_dcache_range(start,end) blackfin_dcache_flush_range((start), (end)) | ||
84 | # define flush_dcache_page(page) blackfin_dflush_page(page_address(page)) | ||
85 | #else | ||
86 | # define flush_dcache_range(start,end) do { } while (0) | ||
87 | # define flush_dcache_page(page) do { } while (0) | ||
88 | #endif | ||
89 | |||
90 | #endif /* _BLACKFIN_ICACHEFLUSH_H */ | ||