diff options
| author | Catalin Marinas <[email protected]> | 2018-05-11 13:33:12 +0100 |
|---|---|---|
| committer | Catalin Marinas <[email protected]> | 2018-05-15 13:29:55 +0100 |
| commit | ebc7e21e0fa28c46b938baed292c77e2d3ef8165 (patch) | |
| tree | fa415205a2ea1ff232aee0b7a6c4e998837b77ef /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | d93277b9839b0bde06238a7a7f644114edb2ad4a (diff) | |
arm64: Increase ARCH_DMA_MINALIGN to 128
This patch increases the ARCH_DMA_MINALIGN to 128 so that it covers the
currently known Cache Writeback Granule (CTR_EL0.CWG) on arm64 and moves
the fallback in cache_line_size() from L1_CACHE_BYTES to this constant.
In addition, it warns (and taints) if the CWG is larger than
ARCH_DMA_MINALIGN as this is not safe with non-coherent DMA.
Cc: Will Deacon <[email protected]>
Cc: Robin Murphy <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions