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| author | Konsta Hölttä <kholtta@nvidia.com> | 2021-06-02 10:33:38 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2021-06-24 11:09:34 -0400 |
| commit | 2c441a83d44857b71a599acfe76395942ea936bf (patch) | |
| tree | 44c367a4ac7bd0dc06afc46bd3a32010db45c169 /drivers/gpu/nvgpu/os/linux/debug_fifo.h | |
| parent | 511344da855c4a6fc06432fb478c42664519f93d (diff) | |
gpu: nvgpu: keep usermode region flags on railgate
When the gpu is railgated, the usermode region mappings must be cleared.
This is already done with zap_vma_ptes() but as an extra measure the vm
flags are also zeroed. That is an oversight, so delete that code; in
particular the VM_DONTCOPY flag is important so that the mapping does
not follow fork, as the design does not allow that.
Bug 200726443
Change-Id: I84ed4e38b7de1f0c8cbf4cca6276abfa2409ac3b
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2538481
(cherry picked from commit e44ece25ba405505b7fd537b41bd0ad52f1250ce)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2548631
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/os/linux/debug_fifo.h')
0 files changed, 0 insertions, 0 deletions