Commit e0172928 authored by Xiaojian Du's avatar Xiaojian Du Committed by Alex Deucher
Browse files

drm/amd/pm: retain the fine grain tuning parameters after resume 



This patch is to retain the fine grain tuning parameters after resume for
legacy APU, it will cover Raven/Raven2/Picasso.

Signed-off-by: default avatarXiaojian Du <Xiaojian.Du@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent bcd74374

drivers/gpu/drm/amd/pm/powerplay/hwmgr/hardwaremanager.c

+2 −1
Original line number Diff line number Diff line
@@ -82,7 +82,8 @@ int phm_enable_dynamic_state_management(struct pp_hwmgr *hwmgr) 


	/* Skip for suspend/resume case */

	if (!hwmgr->pp_one_vf && smum_is_dpm_running(hwmgr)

	    && !amdgpu_passthrough(adev) && adev->in_suspend) {

	    && !amdgpu_passthrough(adev) && adev->in_suspend

		&& adev->asic_type != CHIP_RAVEN) {

		pr_info("dpm has been enabled\n");

		return 0;

	}

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c

+21 −0
Original line number Diff line number Diff line
@@ -377,6 +377,27 @@ static int smu10_enable_gfx_off(struct pp_hwmgr *hwmgr) 


static int smu10_enable_dpm_tasks(struct pp_hwmgr *hwmgr)

{

	struct amdgpu_device *adev = hwmgr->adev;

	struct smu10_hwmgr *smu10_data = (struct smu10_hwmgr *)(hwmgr->backend);

	int ret = -EINVAL;



	if (adev->in_suspend) {

		pr_info("restore the fine grain parameters\n");



		ret = smum_send_msg_to_smc_with_parameter(hwmgr,

					PPSMC_MSG_SetHardMinGfxClk,

					smu10_data->gfx_actual_soft_min_freq,

					NULL);

		if (ret)

			return ret;

		ret = smum_send_msg_to_smc_with_parameter(hwmgr,

					PPSMC_MSG_SetSoftMaxGfxClk,

					smu10_data->gfx_actual_soft_max_freq,

					NULL);

		if (ret)

			return ret;

	}



	return 0;

}