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drm/amdgpu: enable vce powergating

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Enable VCE dpm and powergating. VCE dpm dynamically scales the VCE clocks on
demand.

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Sonny Jiang
2015-05-28 15:47:53 -04:00
committed by Alex Deucher
parent b97aab014c
commit b7a0776949
4 changed files with 148 additions and 14 deletions
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26
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
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@@ -656,19 +656,27 @@ void amdgpu_dpm_enable_uvd(struct amdgpu_device *adev, bool enable)
void amdgpu_dpm_enable_vce(struct amdgpu_device *adev, bool enable)
{
if (enable) {
if (adev->pm.funcs->powergate_vce) {
mutex_lock(&adev->pm.mutex);
adev->pm.dpm.vce_active = true;
/* XXX select vce level based on ring/task */
adev->pm.dpm.vce_level = AMDGPU_VCE_LEVEL_AC_ALL;
/* enable/disable VCE */
amdgpu_dpm_powergate_vce(adev, !enable);
mutex_unlock(&adev->pm.mutex);
} else {
mutex_lock(&adev->pm.mutex);
adev->pm.dpm.vce_active = false;
mutex_unlock(&adev->pm.mutex);
}
if (enable) {
mutex_lock(&adev->pm.mutex);
adev->pm.dpm.vce_active = true;
/* XXX select vce level based on ring/task */
adev->pm.dpm.vce_level = AMDGPU_VCE_LEVEL_AC_ALL;
mutex_unlock(&adev->pm.mutex);
} else {
mutex_lock(&adev->pm.mutex);
adev->pm.dpm.vce_active = false;
mutex_unlock(&adev->pm.mutex);
}
amdgpu_pm_compute_clocks(adev);
amdgpu_pm_compute_clocks(adev);
}
}
void amdgpu_pm_print_power_states(struct amdgpu_device *adev)