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gpu: nvgpu: add clk arbiter check

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Check for NVGPU_CLK_ARB_ENABLED flag before
initiating clk crbiter session which shouldn't
be initiated in absence of clk arbiter.

Bug 3236519

Signed-off-by: Ramesh Mylavarapu <rmylavarapu@nvidia.com>
Change-Id: I945203164063cec35fbab2256b3c7cb983e520ea
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2528551
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Ramesh Mylavarapu
2021-05-12 20:33:13 +05:30
committed by mobile promotions
parent d956938d3f
commit 7d0bd72fde
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c
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@@ -152,7 +152,9 @@ int gk20a_ctrl_dev_open(struct inode *inode, struct file *filp)
gk20a_idle(g); gk20a_idle(g);
} }
err = nvgpu_clk_arb_init_session(g, &priv->clk_session); if (nvgpu_is_enabled(g, NVGPU_CLK_ARB_ENABLED)) {
err = nvgpu_clk_arb_init_session(g, &priv->clk_session);
}
free_ref: free_ref:
if (err != 0) { if (err != 0) {
nvgpu_put(g); nvgpu_put(g);