diff options
| author | Stephen Warren <swarren@nvidia.com> | 2012-09-18 08:05:28 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-09-20 11:07:26 -0700 |
| commit | 55b523b7d4ab885142f77d388007eb5490ba6bf4 (patch) | |
| tree | 52860da4203f49ccc80bed7e1703d41b96c7fdd7 /fs/ext4/ext4_common.c | |
| parent | ed34f34dbaf206dfe223f4bc2147d600fe1b0f58 (diff) | |
| download | talos-obmc-uboot-55b523b7d4ab885142f77d388007eb5490ba6bf4.tar.gz talos-obmc-uboot-55b523b7d4ab885142f77d388007eb5490ba6bf4.zip | |
ext4: cache-align buffers so the invalidation works
DMA buffer cache invalidation requires that buffers have cache-aligned
buffer locations and sizes. Use memalign() and ALLOC_CACHE_ALIGN_BUFFER()
to ensure this.
On Tegra at least, without this fix, the following fail commands fail in
u-boot-master/ext4, but succeeded at the branch's branch point in
u-boot/master. With this fix, the commands work again:
ext2ls mmc 0:1 /
ext2load mmc 0:1 /boot/zImage
Cc: Uma Shankar <uma.shankar@samsung.com>
Cc: Manjunatha C Achar <a.manjunatha@samsung.com>
Cc: Iqbal Shareef <iqbal.ams@samsung.com>
Cc: Hakgoo Lee <goodguy.lee@samsung.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Tom Rini <trini@ti.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'fs/ext4/ext4_common.c')
| -rw-r--r-- | fs/ext4/ext4_common.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c index 083e45eed5..3deffd523e 100644 --- a/fs/ext4/ext4_common.c +++ b/fs/ext4/ext4_common.c @@ -71,7 +71,7 @@ void put_ext4(uint64_t off, void *buf, uint32_t size) uint64_t startblock; uint64_t remainder; unsigned char *temp_ptr = NULL; - unsigned char sec_buf[SECTOR_SIZE]; + ALLOC_CACHE_ALIGN_BUFFER(unsigned char, sec_buf, SECTOR_SIZE); struct ext_filesystem *fs = get_fs(); startblock = off / (uint64_t)SECTOR_SIZE; |
