drm/amdgpu: improve HMM error -ENOMEM and -EBUSY handling

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Under memory pressure, hmm_range_fault may return error code -ENOMEM
or -EBUSY, change pr_info to pr_debug to remove unnecessary kernel log
message because we will retry restore again.

Call get_user_pages_done if TTM get user pages failed will have
WARN_ONCE kernel calling stack dump log.

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 2019-06-14 14:03:36 -04:00 • committed by Alex Deucher

parent c1d827d62f

commit e82fdb16a0

1 changed files with 6 additions and 32 deletions

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38

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

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