nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-22 17:36:20 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: vgpu: fix NVGPU_GPU_IOCTL_CLEAR_SM_ERRORS crash

Browse Source 
vgpu currently does not support suspend gpu context and stall
the whole gpu, because of safety concerns. So vgpu does not set
HALs that are related to on-gpu context.

This change unset gops.gr.clear_sm_errors. And the ioctl
NVGPU_GPU_IOCTL_CLEAR_SM_ERRORS will return -ENOSYS.

Bug 200469468

Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Change-Id: Ie578495e175ad898994fe1c4184a0243d5541cd3
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2395598
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Richard Zhao
2020-08-06 22:09:33 -07:00
committed by Alex Waterman
parent 4f85b2b1d4
commit 3f81f1952d
3 changed files with 6 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c
View File

@@ -875,6 +875,10 @@ static int nvgpu_gpu_ioctl_clear_sm_errors(struct gk20a *g)
{
int err;
if (g->ops.gr.clear_sm_errors == NULL) {
return -ENOSYS;
}
err = gk20a_busy(g);
if (err)
return err;