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authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-08-24 19:30:15 +0900
committerTom Rini <trini@konsulko.com>2018-08-31 11:59:44 -0400
commite3332e1a1a04534225801c2710c6faef4809641c (patch)
tree8e1777b9ee2feb63c12ae19d7bd1aa01032bd4a9 /configs/socfpga_dbm_soc1_defconfig
parent4b0a2d3aabeba4df186113ef0c5edc25cec6001b (diff)
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/socfpga_dbm_soc1_defconfig')
0 files changed, 0 insertions, 0 deletions