fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-blackfin / cacheflush.h
blobd81a77545a04a6a88414d11ec6e9e00604475d23
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)
10 * Modified:
12 * Bugs: Enter bugs at http://blackfin.uclinux.org/
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.
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.
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.
30 #ifndef _BLACKFIN_CACHEFLUSH_H
31 #define _BLACKFIN_CACHEFLUSH_H
33 #include <asm/cplb.h>
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 *);
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)
49 static inline void flush_icache_range(unsigned start, unsigned end)
51 #if defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_ICACHE)
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
59 #else
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
68 #endif
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)
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
90 #endif /* _BLACKFIN_ICACHEFLUSH_H */