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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-08-24 19:30:15 +0900 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-08-31 11:59:44 -0400 |
| commit | e3332e1a1a04534225801c2710c6faef4809641c (patch) | |
| tree | 8e1777b9ee2feb63c12ae19d7bd1aa01032bd4a9 /configs/bcm968380gerg_ram_defconfig | |
| parent | 4b0a2d3aabeba4df186113ef0c5edc25cec6001b (diff) | |
| download | u-boot-e3332e1a1a04534225801c2710c6faef4809641c.tar.gz u-boot-e3332e1a1a04534225801c2710c6faef4809641c.tar.xz u-boot-e3332e1a1a04534225801c2710c6faef4809641c.zip | |
Make kmalloc'ed memory really DMA-safe
In Linux, the memory returned by kmalloc() is DMA-capable.
However, it is not true in U-Boot.
At a glance, kmalloc() in U-Boot returns address aligned with
ARCH_DMA_MINALIGN. However, it never pads the allocated memory.
This half-way house is completely useless because calling kmalloc()
and malloc() in this order causes a cache sharing problem.
Change the implementation to call malloc_cache_aligned(), which
allocates really DMA-capable memory.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'configs/bcm968380gerg_ram_defconfig')
0 files changed, 0 insertions, 0 deletions