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| author | Wei Hu\(Xavier\) <[email protected]> | 2017-11-28 07:10:28 +0000 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2017-12-01 19:21:27 +0000 |
| commit | 378efe798ecf0e7d9730a595ef3419b046e34fb4 (patch) | |
| tree | 47926cc1ac1285b1cff4d1f66d75e4d5c902a5ca /tools/perf/scripts/python/check-perf-trace.py | |
| parent | RDMA/hns: Get rid of virt_to_page and vmap calls after dma_alloc_coherent (diff) | |
| download | kernel-378efe798ecf0e7d9730a595ef3419b046e34fb4.tar.gz kernel-378efe798ecf0e7d9730a595ef3419b046e34fb4.zip | |
RDMA/hns: Get rid of page operation after dma_alloc_coherent
In general, dma_alloc_coherent() returns a CPU virtual address and
a DMA address, and we have no guarantee that the underlying memory
even has an associated struct page at all.
This patch gets rid of the page operation after dma_alloc_coherent,
and records the VA returned form dma_alloc_coherent in the struct
of hem in hns RoCE driver.
Fixes: 9a44353("IB/hns: Add driver files for hns RoCE driver")
Signed-off-by: Wei Hu (Xavier) <[email protected]>
Signed-off-by: Shaobo Xu <[email protected]>
Signed-off-by: Lijun Ou <[email protected]>
Signed-off-by: Yixian Liu <[email protected]>
Signed-off-by: Xiping Zhang (Francis) <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions