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| author | Robin Murphy <Robin.Murphy@arm.com> | 2015-03-04 16:41:05 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-03-27 13:39:36 +0000 |
| commit | f1d84548694fe45f3348c0379d7277fed05bbcf0 (patch) | |
| tree | 0868f35f00e9d905b8d14f0804587d8d538dd197 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 4a1c93cbe9b2cf559fee3316ee287bb042eb1aba (diff) | |
iommu/arm-smmu: set a more appropriate DMA mask
Since we use dma_map_page() as an architecture-independent means of
making page table updates visible to non-coherent SMMUs, we need to
have a suitable DMA mask set to discourage the DMA mapping layer from
creating bounce buffers and flushing those instead, if said page tables
happen to lie outside the default 32-bit mask.
Tested-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
[will: added error checking]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions