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gpu: nvgpu: Disable frequency scaling for AV+L

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NVGPU does not support frequency scaling on hypervisor
based embedded environments.Disable frequency scaling on AV+L
using the nvgpu_is_hypervisor_mode().

JIRA NVGPU-7283

Change-Id: If8fbcc0c5e2f11b9e8895825bb3b3022e7bd3005
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2654969
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Kasinadha Dendukuri <kdendukuri@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Tejal Kudav
2022-01-15 08:22:57 +00:00
committed by mobile promotions
parent 6bfa11c327
commit 4f41ce7696
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/nvgpu/os/linux/driver_common.c
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@@ -215,6 +215,9 @@ static void nvgpu_init_pm_vars(struct gk20a *g)
if (nvgpu_is_hypervisor_mode(g)) { if (nvgpu_is_hypervisor_mode(g)) {
nvgpu_set_enabled(g, NVGPU_CAN_RAILGATE, false); nvgpu_set_enabled(g, NVGPU_CAN_RAILGATE, false);
platform->can_railgate_init = false; platform->can_railgate_init = false;
/* Disable frequency scaling for hypervisor platforms */
platform->devfreq_governor = NULL;
platform->qos_notify = NULL;
} else { } else {
nvgpu_set_enabled(g, NVGPU_CAN_RAILGATE, nvgpu_set_enabled(g, NVGPU_CAN_RAILGATE,
nvgpu_platform_is_simulation(g) ? true : platform->can_railgate_init); nvgpu_platform_is_simulation(g) ? true : platform->can_railgate_init);