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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-02-25 23:10:38 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-02-25 23:10:38 +0100
commit9f33be2c3a80bdc2cc08342dd77fac87652e0548 (patch)
tree7ad6e825427a15c5ec0fc15540abc0429d7f4bce /arch/arm/include/asm/cacheflush.h
parentMerge branch 'misc2' into devel (diff)
parentARM: PNX4008: use msecs_to_jiffies() rather than open-coding it (diff)
downloadlinux-9f33be2c3a80bdc2cc08342dd77fac87652e0548.tar.xz
linux-9f33be2c3a80bdc2cc08342dd77fac87652e0548.zip
Merge branches 'clks' and 'pnx' into devel
Diffstat (limited to 'arch/arm/include/asm/cacheflush.h')
-rw-r--r--arch/arm/include/asm/cacheflush.h20
1 files changed, 17 insertions, 3 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index be8b4d79cf41..8148a009273a 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -154,16 +154,16 @@
* Please note that the implementation of these, and the required
* effects are cache-type (VIVT/VIPT/PIPT) specific.
*
- * flush_cache_kern_all()
+ * flush_kern_all()
*
* Unconditionally clean and invalidate the entire cache.
*
- * flush_cache_user_mm(mm)
+ * flush_user_all()
*
* Clean and invalidate all user space cache entries
* before a change of page tables.
*
- * flush_cache_user_range(start, end, flags)
+ * flush_user_range(start, end, flags)
*
* Clean and invalidate a range of cache entries in the
* specified address space before a change of page tables.
@@ -179,6 +179,20 @@
* - start - virtual start address
* - end - virtual end address
*
+ * coherent_user_range(start, end)
+ *
+ * Ensure coherency between the Icache and the Dcache in the
+ * region described by start, end. If you have non-snooping
+ * Harvard caches, you need to implement this function.
+ * - start - virtual start address
+ * - end - virtual end address
+ *
+ * flush_kern_dcache_area(kaddr, size)
+ *
+ * Ensure that the data held in page is written back.
+ * - kaddr - page address
+ * - size - region size
+ *
* DMA Cache Coherency
* ===================
*