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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2009-03-19 18:31:38 +0100
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2009-03-23 10:15:39 +0100
commit4d7c32dad2e787f890ebcd51bfb723a126913c90 (patch)
tree2ea615b438f34d735c2d8af91fa0b7b9cfe5e080 /include/asm-avr32/arch-at32ap700x
parentb423f94063bf04e92047ff85c7e53441eb3b712b (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')
-rw-r--r--include/asm-avr32/arch-at32ap700x/cacheflush.h83
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 */