Commit 08dac62f authored by Prike Liang's avatar Prike Liang Committed by Alex Deucher
Browse files

drm/amd/powerplay: implement VCN power gating control interface 



VCN Gate/Ungate by processing the SMU power up/down message, otherwise
S3 will resume failed as JPEG always power off during start VCN stage.

Signed-off-by: default avatarPrike Liang <Prike.Liang@amd.com>
Reviewed-by: default avatarEvan Quan <evan.quan@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 57516cdd

drivers/gpu/drm/amd/powerplay/renoir_ppt.c

+27 −1
Original line number Diff line number Diff line
@@ -278,6 +278,32 @@ static enum amd_pm_state_type renoir_get_current_power_state(struct smu_context 
	return pm_type;

}



static int renoir_dpm_set_uvd_enable(struct smu_context *smu, bool enable)

{

	struct smu_power_context *smu_power = &smu->smu_power;

	struct smu_power_gate *power_gate = &smu_power->power_gate;

	int ret = 0;



	if (enable) {

		/* vcn dpm on is a prerequisite for vcn power gate messages */

		if (smu_feature_is_enabled(smu, SMU_FEATURE_VCN_PG_BIT)) {

			ret = smu_send_smc_msg_with_param(smu, SMU_MSG_PowerUpVcn, 1);

			if (ret)

				return ret;

		}

		power_gate->vcn_gated = false;

	} else {

		if (smu_feature_is_enabled(smu, SMU_FEATURE_VCN_PG_BIT)) {

			ret = smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn);

			if (ret)

				return ret;

		}

		power_gate->vcn_gated = true;

	}



	return ret;

}



static const struct pptable_funcs renoir_ppt_funcs = {

	.get_smu_msg_index = renoir_get_smu_msg_index,

	.get_smu_table_index = renoir_get_smu_table_index,
@@ -286,7 +312,7 @@ static const struct pptable_funcs renoir_ppt_funcs = { 
	.get_dpm_uclk_limited = renoir_get_dpm_uclk_limited,

	.print_clk_levels = renoir_print_clk_levels,

	.get_current_power_state = renoir_get_current_power_state,



	.dpm_set_uvd_enable = renoir_dpm_set_uvd_enable,

};



void renoir_set_ppt_funcs(struct smu_context *smu)