Konsta Hölttä e44ece25ba 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
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2021-06-22 19:30:00 -07:00

..

nvgpu

gpu: nvgpu: keep usermode region flags on railgate

2021-06-22 19:30:00 -07:00

Makefile

gpu: nvgpu: move linux configs from Kconfig file

2020-12-15 14:13:28 -06:00