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authorPhilip Yang <Philip.Yang@amd.com>2022-09-07 12:30:12 -0400
committerAlex Deucher <alexander.deucher@amd.com>2022-09-13 12:54:23 -0400
commite1f84eef313f4820cca068a238c645d0a38c6a9b (patch)
treef1e730ba445350b3c4b70b1770294cb572f36b35 /tools/perf/scripts/python/export-to-postgresql.py
parent7a3f8b7c4cdb9d678d6311ca93e6b793e8957295 (diff)
drm/amdkfd: handle CPU fault on COW mapping
If CPU page fault in a page with zone_device_data svm_bo from another process, that means it is COW mapping in the child process and the range is migrated to VRAM by parent process. Migrate the parent process range back to system memory to recover the CPU page fault. Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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