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gpu: nvgpu: debugfs: only create railgate_residency if not is_virtual

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Dump railgate_residency causes kernel crash since vgpu does not control
railgate_residency. So create railgate_residency only on native driver.

Bug 2848790

Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Change-Id: I08d65e1c1c5bf813f0c47d5bffad5a01ea62adf8
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2349293
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Richard Zhao
2020-05-21 22:58:00 -07:00
committed by Alex Waterman
parent 6b1302f23c
commit 246b5fcf4d
1 changed files with 6 additions and 4 deletions
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2
drivers/gpu/nvgpu/os/linux/debug.c
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@@ -273,11 +273,13 @@ static int gk20a_railgating_debugfs_init(struct gk20a *g)
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
struct dentry *d; struct dentry *d;
if (!g->is_virtual) {
d = debugfs_create_file( d = debugfs_create_file(
"railgate_residency", S_IRUGO|S_IWUSR, l->debugfs, g, "railgate_residency", S_IRUGO|S_IWUSR, l->debugfs, g,
&railgate_residency_fops); &railgate_residency_fops);
if (!d) if (!d)
return -ENOMEM; return -ENOMEM;
}
return 0; return 0;
} }