Commit f6f534e2 authored by Rex Zhu's avatar Rex Zhu Committed by Alex Deucher
Browse files

drm/amdgpu: add drm light sleep support for Vi 



v2: fix copy error.

Signed-off-by: default avatarRex Zhu <Rex.Zhu@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e8a95b27

drivers/gpu/drm/amd/amdgpu/vi.c

+19 −0
Original line number Diff line number Diff line
@@ -1177,6 +1177,23 @@ static void vi_update_hdp_light_sleep(struct amdgpu_device *adev, 
		WREG32(mmHDP_MEM_POWER_LS, data);

}



static void vi_update_drm_light_sleep(struct amdgpu_device *adev,

				      bool enable)

{

	uint32_t temp, data;



	temp = data = RREG32(0x157a);



	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_DRM_LS))

		data |= 1;

	else

		data &= ~1;



	if (temp != data)

		WREG32(0x157a, data);

}





static void vi_update_rom_medium_grain_clock_gating(struct amdgpu_device *adev,

						    bool enable)

{
@@ -1337,6 +1354,8 @@ static int vi_common_set_clockgating_state(void *handle, 
				state == AMD_CG_STATE_GATE ? true : false);

		vi_update_hdp_light_sleep(adev,

				state == AMD_CG_STATE_GATE ? true : false);

		vi_update_drm_light_sleep(adev,

				state == AMD_CG_STATE_GATE ? true : false);

		break;

	case CHIP_TONGA:

	case CHIP_POLARIS10:

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