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| author | Veerabhadrarao Badiganti <[email protected]> | 2020-02-26 16:27:43 +0530 |
|---|---|---|
| committer | Ulf Hansson <[email protected]> | 2020-03-24 14:35:42 +0100 |
| commit | ea21e9b2b33fd06c131415cc66ca5499ab2aef5f (patch) | |
| tree | 118e5eb03b545fbfa00f0589614d843b7b937619 /tools/testing/selftests/bpf/prog_tests/autoload.c | |
| parent | d79100c91ae57a08c2bc7fdefccd348a2f345829 (diff) | |
mmc: mmc_test: Pass different sg lists for non-blocking requests
Supply a separate sg list for each of the request in non-blocking
IO test cases where two requests will be issued at same time.
Otherwise, sg memory may get unmapped when a request is done while
same memory is being accessed by controller from the other request,
and it leads to iommu errors with below call stack:
__arm_lpae_unmap+0x2e0/0x478
arm_lpae_unmap+0x54/0x70
arm_smmu_unmap+0x64/0xa4
__iommu_unmap+0xb8/0x1f0
iommu_unmap_fast+0x38/0x48
__iommu_dma_unmap+0x88/0x108
iommu_dma_unmap_sg+0x90/0xa4
sdhci_post_req+0x5c/0x78
mmc_test_start_areq+0x10c/0x120 [mmc_test]
mmc_test_area_io_seq+0x150/0x264 [mmc_test]
mmc_test_rw_multiple+0x174/0x1c0 [mmc_test]
mmc_test_rw_multiple_sg_len+0x44/0x6c [mmc_test]
mmc_test_profile_sglen_wr_nonblock_perf+0x6c/0x94 [mmc_test]
mtf_test_write+0x238/0x3cc [mmc_test]
Signed-off-by: Veerabhadrarao Badiganti <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Tested-by: Sai Prakash Ranjan <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/autoload.c')
0 files changed, 0 insertions, 0 deletions