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author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2009-03-19 18:31:38 +0100 |
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committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2009-03-23 10:15:39 +0100 |
commit | 4d7c32dad2e787f890ebcd51bfb723a126913c90 (patch) | |
tree | 2ea615b438f34d735c2d8af91fa0b7b9cfe5e080 /include/asm-avr32/arch-at32ap700x/cacheflush.h | |
parent | b423f94063bf04e92047ff85c7e53441eb3b712b (diff) | |
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avr32: fix cacheflush.h location introducted by d8f2aa3298610b
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Diffstat (limited to 'include/asm-avr32/arch-at32ap700x/cacheflush.h')
-rw-r--r-- | include/asm-avr32/arch-at32ap700x/cacheflush.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/include/asm-avr32/arch-at32ap700x/cacheflush.h b/include/asm-avr32/arch-at32ap700x/cacheflush.h new file mode 100644 index 0000000..929f68e --- /dev/null +++ b/include/asm-avr32/arch-at32ap700x/cacheflush.h @@ -0,0 +1,83 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef __ASM_AVR32_CACHEFLUSH_H +#define __ASM_AVR32_CACHEFLUSH_H + +/* + * Invalidate any cacheline containing virtual address vaddr without + * writing anything back to memory. + * + * Note that this function may corrupt unrelated data structures when + * applied on buffers that are not cacheline aligned in both ends. + */ +static inline void dcache_invalidate_line(volatile void *vaddr) +{ + asm volatile("cache %0[0], 0x0b" : : "r"(vaddr) : "memory"); +} + +/* + * Make sure any cacheline containing virtual address vaddr is written + * to memory. + */ +static inline void dcache_clean_line(volatile void *vaddr) +{ + asm volatile("cache %0[0], 0x0c" : : "r"(vaddr) : "memory"); +} + +/* + * Make sure any cacheline containing virtual address vaddr is written + * to memory and then invalidate it. + */ +static inline void dcache_flush_line(volatile void *vaddr) +{ + asm volatile("cache %0[0], 0x0d" : : "r"(vaddr) : "memory"); +} + +/* + * Invalidate any instruction cacheline containing virtual address + * vaddr. + */ +static inline void icache_invalidate_line(volatile void *vaddr) +{ + asm volatile("cache %0[0], 0x01" : : "r"(vaddr) : "memory"); +} + +/* + * Applies the above functions on all lines that are touched by the + * specified virtual address range. + */ +void dcache_invalidate_range(volatile void *start, size_t len); +void dcache_clean_range(volatile void *start, size_t len); +void dcache_flush_range(volatile void *start, size_t len); +void icache_invalidate_range(volatile void *start, size_t len); + +static inline void dcache_flush_unlocked(void) +{ + asm volatile("cache %0[5], 0x08" : : "r"(0) : "memory"); +} + +/* + * Make sure any pending writes are completed before continuing. + */ +#define sync_write_buffer() asm volatile("sync 0" : : : "memory") + +#endif /* __ASM_AVR32_CACHEFLUSH_H */ |