Commit 991a6b32 authored by Evan Quan's avatar Evan Quan Committed by Alex Deucher
Browse files

drm/amd/powerplay: add vega12 SMU gfxoff support v3 



Export apis for enabling/disabling SMU gfxoff support.

v2: fit the latest gfxoff support framework
v3: add feature_mask control

Signed-off-by: default avatarEvan Quan <evan.quan@amd.com>
Reviewed-by: Huang Rui <ray.huang at amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a5aedc2d

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

+5 −0
Original line number Diff line number Diff line
@@ -3769,6 +3769,11 @@ static int gfx_v9_0_set_powergating_state(void *handle, 
		/* update mgcg state */

		gfx_v9_0_update_gfx_mg_power_gating(adev, enable);



		/* set gfx off through smu */

		if (enable && adev->powerplay.pp_funcs->set_powergating_by_smu)

			amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, true);

		break;

	case CHIP_VEGA12:

		/* set gfx off through smu */

		if (enable && adev->powerplay.pp_funcs->set_powergating_by_smu)

			amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, true);

drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c

+38 −0
Original line number Diff line number Diff line
@@ -423,6 +423,11 @@ static int vega12_hwmgr_backend_init(struct pp_hwmgr *hwmgr) 
			hwmgr->thermal_controller.advanceFanControlParameters.usFanPWMMinLimit *

			hwmgr->thermal_controller.fanInfo.ulMaxRPM / 100;



	if (hwmgr->feature_mask & PP_GFXOFF_MASK)

		data->gfxoff_controlled_by_driver = true;

	else

		data->gfxoff_controlled_by_driver = false;



	return result;

}
@@ -2328,6 +2333,38 @@ static int vega12_get_thermal_temperature_range(struct pp_hwmgr *hwmgr, 
	return 0;

}



static int vega12_enable_gfx_off(struct pp_hwmgr *hwmgr)

{

	struct vega12_hwmgr *data =

			(struct vega12_hwmgr *)(hwmgr->backend);

	int ret = 0;



	if (data->gfxoff_controlled_by_driver)

		ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_AllowGfxOff);



	return ret;

}



static int vega12_disable_gfx_off(struct pp_hwmgr *hwmgr)

{

	struct vega12_hwmgr *data =

			(struct vega12_hwmgr *)(hwmgr->backend);

	int ret = 0;



	if (data->gfxoff_controlled_by_driver)

		ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_DisallowGfxOff);



	return ret;

}



static int vega12_gfx_off_control(struct pp_hwmgr *hwmgr, bool enable)

{

	if (enable)

		return vega12_enable_gfx_off(hwmgr);

	else

		return vega12_disable_gfx_off(hwmgr);

}



static const struct pp_hwmgr_func vega12_hwmgr_funcs = {

	.backend_init = vega12_hwmgr_backend_init,

	.backend_fini = vega12_hwmgr_backend_fini,
@@ -2377,6 +2414,7 @@ static const struct pp_hwmgr_func vega12_hwmgr_funcs = { 
	.get_thermal_temperature_range = vega12_get_thermal_temperature_range,

	.register_irq_handlers = smu9_register_irq_handlers,

	.start_thermal_controller = vega12_start_thermal_controller,

	.powergate_gfx = vega12_gfx_off_control,

};



int vega12_hwmgr_init(struct pp_hwmgr *hwmgr)

drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.h

+3 −0
Original line number Diff line number Diff line
@@ -393,6 +393,9 @@ struct vega12_hwmgr { 
	struct vega12_smc_state_table  smc_state_table;



	struct vega12_clock_range      clk_range[PPCLK_COUNT];



	/* ---- Gfxoff ---- */

	bool                           gfxoff_controlled_by_driver;

};



#define VEGA12_DPM2_NEAR_TDP_DEC                      10