ipc: Fix page table DMA transfer size#3659
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lgirdwood merged 2 commits intothesofproject:masterfrom Dec 3, 2020
caseorum:bdw-stutter
Merged
ipc: Fix page table DMA transfer size#3659lgirdwood merged 2 commits intothesofproject:masterfrom caseorum:bdw-stutter
lgirdwood merged 2 commits intothesofproject:masterfrom
caseorum:bdw-stutter
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This was too small, causing the ptable to be truncated and the ptable DMA transfer to fail on BDW for small buffers, where the minimum transfer is 4 bytes. Signed-off-by: Joseph Burt <caseorum@gmail.com>
This rounds up the page table DMA transfer size to DMA_ATTR_COPY_ALIGNMENT instead of a hard-coded 4 bytes. Signed-off-by: Joseph Burt <caseorum@gmail.com>
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rerun CI - not sure why it's failing on platforms where ptable is not used. |
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SOFCI TEST |
lgirdwood
approved these changes
Dec 2, 2020
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This corrects the minimum transfer size calculation for the ptable and uses the relevant DMA attribute.
Fixes #3492, fixes #3503