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Commit d7341ef6 authored by Eric Huang's avatar Eric Huang Committed by Alex Deucher
Browse files

drm/amd/powerplay: add some hwmgr functions for sysfs interface on Carrizo 



These add the interfaces for manual clock control.

Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarEric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent b9c1a77e

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

+51 −0
Original line number Diff line number Diff line
@@ -1700,6 +1700,54 @@ static void cz_hw_print_display_cfg( 
	return -EINVAL;

}



static int cz_force_clock_level(struct pp_hwmgr *hwmgr,

		enum pp_clock_type type, int level)

{

	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)

		return -EINVAL;



	switch (type) {

	case PP_SCLK:

		smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,

				PPSMC_MSG_SetSclkSoftMin,

				(1 << level));

		smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,

				PPSMC_MSG_SetSclkSoftMax,

				(1 << level));

		break;

	default:

		break;

	}



	return 0;

}



static int cz_print_clock_levels(struct pp_hwmgr *hwmgr,

		enum pp_clock_type type, char *buf)

{

	struct phm_clock_voltage_dependency_table *sclk_table =

			hwmgr->dyn_state.vddc_dependency_on_sclk;

	int i, now, size = 0;



	switch (type) {

	case PP_SCLK:

		now = PHM_GET_FIELD(cgs_read_ind_register(hwmgr->device,

				CGS_IND_REG__SMC,

				ixTARGET_AND_CURRENT_PROFILE_INDEX),

				TARGET_AND_CURRENT_PROFILE_INDEX,

				CURR_SCLK_INDEX);



		for (i = 0; i < sclk_table->count; i++)

			size += sprintf(buf + size, "%d: %uMhz %s\n",

					i, sclk_table->entries[i].clk / 100,

					(i == now) ? "*" : "");

		break;

	default:

		break;

	}

	return size;

}



static const struct pp_hwmgr_func cz_hwmgr_funcs = {

	.backend_init = cz_hwmgr_backend_init,

	.backend_fini = cz_hwmgr_backend_fini,
@@ -1719,6 +1767,9 @@ static const struct pp_hwmgr_func cz_hwmgr_funcs = { 
	.set_cpu_power_state = cz_set_cpu_power_state,

	.store_cc6_data = cz_store_cc6_data,

	.get_dal_power_level= cz_get_dal_power_level,

	.force_clock_level = cz_force_clock_level,

	.print_clock_levels = cz_print_clock_levels,



};



int cz_hwmgr_init(struct pp_hwmgr *hwmgr)