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drm/amd: Only run s3 or s0ix if system is configured properly

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This will cause misconfigured systems to not run the GPU suspend
routines.

* In APUs that are properly configured system will go into s2idle.
* In APUs that are intended to be S3 but user selects
  s2idle the GPU will stay fully powered for the suspend.
* In APUs that are intended to be s2idle and system misconfigured
  the GPU will stay fully powered for the suspend.
* In systems that are intended to be s2idle, but AMD dGPU is also
  present, the dGPU will go through S3

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mario Limonciello 2022-01-25 21:37:57 -06:00 • committed by Alex Deucher
parent f52a2b8bad
commit 04ef860469
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View file

@ -2246,6 +2246,7 @@ static void amdgpu_drv_delayed_reset_work_handler(struct work_struct *work)
static int amdgpu_pmops_prepare(struct device *dev)
{
struct drm_device *drm_dev = dev_get_drvdata(dev);
struct amdgpu_device *adev = drm_to_adev(drm_dev);
/* Return a positive number here so
* DPM_FLAG_SMART_SUSPEND works properly
@ -2254,6 +2255,13 @@ static int amdgpu_pmops_prepare(struct device *dev)
return pm_runtime_suspended(dev) &&
pm_suspend_via_firmware();
/* if we will not support s3 or s2i for the device
* then skip suspend
*/
if (!amdgpu_acpi_is_s0ix_active(adev) &&
!amdgpu_acpi_is_s3_active(adev))
return 1;
return 0;
}