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| author | Anton staaf <robotboy@chromium.org> | 2011-10-12 13:55:59 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-10-25 09:23:10 +0200 |
| commit | 46a6d51c827a12723e7191128fb7aab42c8f5c09 (patch) | |
| tree | dd006809b5a777f6bd463c2d8f3a7bad0426fb68 /doc/README.arm-caches | |
| parent | d47031e6879d6408b08889583600edd6aff378c8 (diff) | |
| download | u-boot-imx-46a6d51c827a12723e7191128fb7aab42c8f5c09.zip u-boot-imx-46a6d51c827a12723e7191128fb7aab42c8f5c09.tar.gz u-boot-imx-46a6d51c827a12723e7191128fb7aab42c8f5c09.tar.bz2 | |
cache: add ALLOC_CACHE_ALIGN_BUFFER macro
This macro is used to allocate cache line size aligned stack
buffers for use with DMA hardware.
Signed-off-by: Anton Staaf <robotboy@chromium.org>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Aneesh V <aneesh@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'doc/README.arm-caches')
| -rw-r--r-- | doc/README.arm-caches | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/README.arm-caches b/doc/README.arm-caches index cd2b458..f6a52e3 100644 --- a/doc/README.arm-caches +++ b/doc/README.arm-caches @@ -40,6 +40,8 @@ Buffer Requirements: - If the buffer is not cache-line aligned invalidation will be restricted to the aligned part. That is, one cache-line at the respective boundary may be left out while doing invalidation. +- A suitable buffer can be alloced on the stack using the + ALLOC_CACHE_ALIGN_BUFFER macro. Cleanup Before Linux: - cleanup_before_linux() should flush the D-cache, invalidate I-cache, and |