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gpu: nvgpu: do_idle/unidle handling with runtime PM after probe

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Extend the runtime suspend/resume based idle/unidle logic in the
probe case to handling done in gk20a_do_idle/unidle for nvgpu
after the probe completion.

If the railgating is disabled, setting autosuspend_delay to 0 will
enable the suspend. If railgating is enabled, autosuspend delay
will be > 0. Setting it to 0 will enable the immediate suspend.

With this approach based on RPM, forced_reset logic is removed.
force_reset_in_do_idle is also removed as railgating is
supported.

Bug 200602747
JIRA NVGPU-5356

Change-Id: Iaf6d5ab651b8200f0547b45d90f812110cf63c0e
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2375941
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Sagar Kamble
2020-07-15 13:18:46 +05:30
committed by Alex Waterman
parent 4012a97640
commit bd7bda4f98
6 changed files with 45 additions and 128 deletions
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6
drivers/gpu/nvgpu/os/linux/platform_gk20a.h
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@@ -154,12 +154,6 @@ struct gk20a_platform {
/* Disable nvlink support */
bool disable_nvlink;
/*
* gk20a_do_idle() API can take GPU either into rail gate or CAR reset
* This flag can be used to force CAR reset case instead of rail gate
*/
bool force_reset_in_do_idle;
/* guest/vm id, needed for IPA to PA transation */
int vmid;