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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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4
drivers/gpu/nvgpu/os/linux/sysfs.c
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@@ -788,7 +788,7 @@ static ssize_t force_idle_store(struct device *dev,
if (g->forced_idle)
return count; /* do nothing */
else {
err = gk20a_do_idle_impl(g, false);
err = gk20a_do_idle(g);
if (!err) {
g->forced_idle = 1;
nvgpu_info(g, "gpu is idle : %d",
@@ -799,7 +799,7 @@ static ssize_t force_idle_store(struct device *dev,
if (!g->forced_idle)
return count; /* do nothing */
else {
err = gk20a_do_unidle_impl(g);
err = gk20a_do_unidle(g);
if (!err) {
g->forced_idle = 0;
nvgpu_info(g, "gpu is idle : %d",