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gpu: nvgpu: remove sudo restrictions on gpu nodes.

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When SMC modes are enabled, devices are created with sudo-only
access permissions. Those permissions are relaxed to allow non-sudo
processes to allow job submission.

Also, allow only root users to poweroff explicitely via the device
power node.

Bug 3374078

Change-Id: Ieb869399c3ada3588708cf2bc99a580414023cb7
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2590584
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Debarshi Dutta
2021-09-07 18:18:39 +05:30
committed by mobile promotions
parent f3164a4672
commit 79ab0ba6c4
3 changed files with 6 additions and 17 deletions
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2
drivers/gpu/nvgpu/os/linux/power_ops.c
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@@ -136,7 +136,7 @@ int gk20a_power_write(struct file *filp, const char __user *buf,
if (err) {
nvgpu_err(g, "power_node_write failed at busy");
kfree(userinput);
return -EINVAL;
return err;
}
} else {
nvgpu_err(g, "1/0 are the valid values to power-on the GPU");