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Commit 3ed2584f authored by Eric Huang's avatar Eric Huang Committed by Alex Deucher
Browse files

drm/amd/powerplay: add power profile support for tonga 



Signed-off-by: default avatarEric Huang <JinHuiEric.Huang@amd.com>
Acked-by: default avatarRex Zhu <Rex.Zhu@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ff3953d4

drivers/gpu/drm/amd/powerplay/smumgr/tonga_smc.c

+63 −0
Original line number Diff line number Diff line
@@ -2219,6 +2219,42 @@ static void tonga_initialize_power_tune_defaults(struct pp_hwmgr *hwmgr) 
		smu_data->power_tune_defaults = &tonga_power_tune_data_set_array[0];

}



static void tonga_save_default_power_profile(struct pp_hwmgr *hwmgr)

{

	struct tonga_smumgr *data = (struct tonga_smumgr *)(hwmgr->smumgr->backend);

	struct SMU72_Discrete_GraphicsLevel *levels =

				data->smc_state_table.GraphicsLevel;

	unsigned min_level = 1;



	hwmgr->default_gfx_power_profile.activity_threshold =

			be16_to_cpu(levels[0].ActivityLevel);

	hwmgr->default_gfx_power_profile.up_hyst = levels[0].UpHyst;

	hwmgr->default_gfx_power_profile.down_hyst = levels[0].DownHyst;

	hwmgr->default_gfx_power_profile.type = AMD_PP_GFX_PROFILE;



	hwmgr->default_compute_power_profile = hwmgr->default_gfx_power_profile;

	hwmgr->default_compute_power_profile.type = AMD_PP_COMPUTE_PROFILE;



	/* Workaround compute SDMA instability: disable lowest SCLK

	 * DPM level. Optimize compute power profile: Use only highest

	 * 2 power levels (if more than 2 are available), Hysteresis:

	 * 0ms up, 5ms down

	 */

	if (data->smc_state_table.GraphicsDpmLevelCount > 2)

		min_level = data->smc_state_table.GraphicsDpmLevelCount - 2;

	else if (data->smc_state_table.GraphicsDpmLevelCount == 2)

		min_level = 1;

	else

		min_level = 0;

	hwmgr->default_compute_power_profile.min_sclk =

			be32_to_cpu(levels[min_level].SclkFrequency);

	hwmgr->default_compute_power_profile.up_hyst = 0;

	hwmgr->default_compute_power_profile.down_hyst = 5;



	hwmgr->gfx_power_profile = hwmgr->default_gfx_power_profile;

	hwmgr->compute_power_profile = hwmgr->default_compute_power_profile;

}



/**

 * Initializes the SMC table and uploads it

 *
@@ -2468,6 +2504,8 @@ int tonga_init_smc_table(struct pp_hwmgr *hwmgr) 
	PP_ASSERT_WITH_CODE((!result),

		"Failed to populate initialize MC Reg table !", return result);



	tonga_save_default_power_profile(hwmgr);



	return 0;

}
@@ -3210,3 +3248,28 @@ bool tonga_is_dpm_running(struct pp_hwmgr *hwmgr) 
			CGS_IND_REG__SMC, FEATURE_STATUS, VOLTAGE_CONTROLLER_ON))

			? true : false;

}



int tonga_populate_requested_graphic_levels(struct pp_hwmgr *hwmgr,

		struct amd_pp_profile *request)

{

	struct tonga_smumgr *smu_data = (struct tonga_smumgr *)

			(hwmgr->smumgr->backend);

	struct SMU72_Discrete_GraphicsLevel *levels =

			smu_data->smc_state_table.GraphicsLevel;

	uint32_t array = smu_data->smu7_data.dpm_table_start +

			offsetof(SMU72_Discrete_DpmTable, GraphicsLevel);

	uint32_t array_size = sizeof(struct SMU72_Discrete_GraphicsLevel) *

			SMU72_MAX_LEVELS_GRAPHICS;

	uint32_t i;



	for (i = 0; i < smu_data->smc_state_table.GraphicsDpmLevelCount; i++) {

		levels[i].ActivityLevel =

				cpu_to_be16(request->activity_threshold);

		levels[i].EnabledForActivity = 1;

		levels[i].UpHyst = request->up_hyst;

		levels[i].DownHyst = request->down_hyst;

	}



	return smu7_copy_bytes_to_smc(hwmgr->smumgr, array, (uint8_t *)levels,

				array_size, SMC_RAM_END);

}

drivers/gpu/drm/amd/powerplay/smumgr/tonga_smc.h

+2 −0
Original line number Diff line number Diff line
@@ -56,5 +56,7 @@ uint32_t tonga_get_mac_definition(uint32_t value); 
int tonga_process_firmware_header(struct pp_hwmgr *hwmgr);

int tonga_initialize_mc_reg_table(struct pp_hwmgr *hwmgr);

bool tonga_is_dpm_running(struct pp_hwmgr *hwmgr);

int tonga_populate_requested_graphic_levels(struct pp_hwmgr *hwmgr,

		struct amd_pp_profile *request);

#endif

drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c

+1 −0
Original line number Diff line number Diff line
@@ -209,4 +209,5 @@ const struct pp_smumgr_func tonga_smu_funcs = { 
	.get_mac_definition = tonga_get_mac_definition,

	.initialize_mc_reg_table = tonga_initialize_mc_reg_table,

	.is_dpm_running = tonga_is_dpm_running,

	.populate_requested_graphic_levels = tonga_populate_requested_graphic_levels,

};