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| author | Christian König <[email protected]> | 2022-11-10 11:31:41 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2022-11-17 05:23:30 +0000 |
| commit | fec8fdb54e8f74d88951c9f998f47bf4f2031fe0 (patch) | |
| tree | 6488c4cbf8dedf902da012af243f8156d34a7be2 /drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c | |
| parent | drm/amdgpu: always register an MMU notifier for userptr (diff) | |
| download | kernel-fec8fdb54e8f74d88951c9f998f47bf4f2031fe0.tar.gz kernel-fec8fdb54e8f74d88951c9f998f47bf4f2031fe0.zip | |
drm/amdgpu: fix userptr HMM range handling v2
The basic problem here is that it's not allowed to page fault while
holding the reservation lock.
So it can happen that multiple processes try to validate an userptr
at the same time.
Work around that by putting the HMM range object into the mutex
protected bo list for now.
v2: make sure range is set to NULL in case of an error
Signed-off-by: Christian König <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
CC: [email protected]
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c')
0 files changed, 0 insertions, 0 deletions