drm/amdkfd: restore userptr ignore bad address error

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The userptr can be unmapped by application and still registered to
driver, restore userptr work return user pages will get -EFAULT bad
address error. Pretend this error as succeed. GPU access this userptr
will have VM fault later, it is better than application soft hangs with
stalled user mode queues.

v2: squash in warning fix (Alex)

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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Philip Yang 2021-10-26 11:59:28 -04:00 • committed by Alex Deucher

parent 68daadf3d6

commit 3b8a23ae52

2 changed files with 20 additions and 10 deletions

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27

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c

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3

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

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