Commit e4deccc1 authored by Lang Yu's avatar Lang Yu Committed by Alex Deucher
Browse files

drm/amdgpu: add support to power up/down UMSCH by SMU 



Power up/down UMSCH by SMU.

Signed-off-by: default avatarLang Yu <Lang.Yu@amd.com>
Acked-by: default avatarLeo Liu <leo.liu@amd.com>
Acked-by: default avatarVeerabadhran Gopalakrishnan <Veerabadhran.Gopalakrishnan@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 56d3de7d

drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

+26 −0
Original line number Diff line number Diff line
@@ -299,6 +299,29 @@ static int smu_dpm_set_vpe_enable(struct smu_context *smu, 
	return ret;

}



static int smu_dpm_set_umsch_mm_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 (!smu->adev->enable_umsch_mm)

		return 0;



	if (!smu->ppt_funcs->dpm_set_umsch_mm_enable)

		return 0;



	if (atomic_read(&power_gate->umsch_mm_gated) ^ enable)

		return 0;



	ret = smu->ppt_funcs->dpm_set_umsch_mm_enable(smu, enable);

	if (!ret)

		atomic_set(&power_gate->umsch_mm_gated, !enable);



	return ret;

}



/**

 * smu_dpm_set_power_gate - power gate/ungate the specific IP block

 *
@@ -1196,6 +1219,7 @@ static int smu_sw_init(void *handle) 
	atomic_set(&smu->smu_power.power_gate.vcn_gated, 1);

	atomic_set(&smu->smu_power.power_gate.jpeg_gated, 1);

	atomic_set(&smu->smu_power.power_gate.vpe_gated, 1);

	atomic_set(&smu->smu_power.power_gate.umsch_mm_gated, 1);



	smu->workload_mask = 1 << smu->workload_prority[PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT];

	smu->workload_prority[PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT] = 0;
@@ -1549,6 +1573,7 @@ static int smu_hw_init(void *handle) 
		smu_dpm_set_vcn_enable(smu, true);

		smu_dpm_set_jpeg_enable(smu, true);

		smu_dpm_set_vpe_enable(smu, true);

		smu_dpm_set_umsch_mm_enable(smu, true);

		smu_set_gfx_cgpg(smu, true);

	}
@@ -1726,6 +1751,7 @@ static int smu_hw_fini(void *handle) 
	smu_dpm_set_vcn_enable(smu, false);

	smu_dpm_set_jpeg_enable(smu, false);

	smu_dpm_set_vpe_enable(smu, false);

	smu_dpm_set_umsch_mm_enable(smu, false);



	adev->vcn.cur_state = AMD_PG_STATE_GATE;

	adev->jpeg.cur_state = AMD_PG_STATE_GATE;

drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h

+1 −0
Original line number Diff line number Diff line
@@ -375,6 +375,7 @@ struct smu_power_gate { 
	atomic_t vcn_gated;

	atomic_t jpeg_gated;

	atomic_t vpe_gated;

	atomic_t umsch_mm_gated;

};



struct smu_power_context {