diff options
| author | Shih-hsin Li <seasonl@nvidia.com> | 2019-05-07 19:34:01 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2019-05-09 23:43:17 -0400 |
| commit | af95d14bb08850ed449eebae227faca800747108 (patch) | |
| tree | e262ce10e0283d153f3527d7d375abaec22a4383 /drivers/gpu/nvgpu/gk20a/clk_gk20a.h | |
| parent | 6509bb49da19ba9b19e3df64e473b01d54fd310d (diff) | |
gpu: nvgpu: fix synchronization in nvgpu_vm_map
The mapping early returned from nvgpu_vm_map might already
be unmapped during channel clean up. Increase refcount of
an already mapped buffer inside the scope of update_gmmu_lock
mutex to avoid this race.
Bug 200494150
Change-Id: I66d9272e42c40cd3aae7ba3bb8106ec37691bf8e
Signed-off-by: Shih-hsin Li <seasonl@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2114163
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Vinayak Pane <vpane@nvidia.com>
Reviewed-by: Daniel Fu <danifu@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/clk_gk20a.h')
0 files changed, 0 insertions, 0 deletions