mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 21:21:41 +00:00
d6d0827399
We shouldn't assume CPU physical address we get from page_to_phys() is same as DMA address we get from dma_alloc_coherent(). On x86_64, we won't run into any problem with the assumption when dma_ops is nommu_dma_ops. However, DMA address is IOVA when IOMMU is enabled. And it's most likely different from CPU physical address when AMD IOMMU is not in passthrough mode. Signed-off-by: Yu Zhao <yuzhao@google.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
||
---|---|---|
.. | ||
include | ||
raven | ||
acp-da7219-max98357a.c | ||
acp-pcm-dma.c | ||
acp-rt5645.c | ||
acp.h | ||
Kconfig | ||
Makefile |