Commit a831bafa authored by Xiaomeng Hou's avatar Xiaomeng Hou Committed by Alex Deucher
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drm/amd/pm: add support to get dpm clock value for yellow carp 



Implement the sysfs API for getting values of pp dpm
clocks(pp_dpm_socclk/mclk/fclk/vclk/dclk) for yellow carp.

Signed-off-by: default avatarXiaomeng Hou <Xiaomeng.Hou@amd.com>
Reviewed-by: default avatarKevin Wang <kevin1.wang@amd.com>
Reviewed-by: default avatarHuang Rui <ray.huang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d54e9e70

drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c

+127 −1
Original line number Diff line number Diff line
@@ -458,10 +458,113 @@ static int yellow_carp_od_edit_dpm_table(struct smu_context *smu, enum PP_OD_DPM 
	return ret;

}



static int yellow_carp_get_current_clk_freq(struct smu_context *smu,

						enum smu_clk_type clk_type,

						uint32_t *value)

{

	MetricsMember_t member_type;



	switch (clk_type) {

	case SMU_SOCCLK:

		member_type = METRICS_AVERAGE_SOCCLK;

		break;

	case SMU_VCLK:

	    member_type = METRICS_AVERAGE_VCLK;

		break;

	case SMU_DCLK:

		member_type = METRICS_AVERAGE_DCLK;

		break;

	case SMU_MCLK:

		member_type = METRICS_AVERAGE_UCLK;

		break;

	case SMU_FCLK:

		return smu_cmn_send_smc_msg_with_param(smu,

				SMU_MSG_GetFclkFrequency, 0, value);

	default:

		break;

	}



	return yellow_carp_get_smu_metrics_data(smu, member_type, value);

}



static int yellow_carp_get_dpm_level_count(struct smu_context *smu,

						enum smu_clk_type clk_type,

						uint32_t *count)

{

	DpmClocks_t *clk_table = smu->smu_table.clocks_table;



	switch (clk_type) {

	case SMU_SOCCLK:

		*count = clk_table->NumSocClkLevelsEnabled;

		break;

	case SMU_VCLK:

		*count = clk_table->VcnClkLevelsEnabled;

		break;

	case SMU_DCLK:

		*count = clk_table->VcnClkLevelsEnabled;

		break;

	case SMU_MCLK:

		*count = clk_table->NumDfPstatesEnabled;

		break;

	case SMU_FCLK:

		*count = clk_table->NumDfPstatesEnabled;

		break;

	default:

		break;

	}



	return 0;

}



static int yellow_carp_get_dpm_freq_by_index(struct smu_context *smu,

						enum smu_clk_type clk_type,

						uint32_t dpm_level,

						uint32_t *freq)

{

	DpmClocks_t *clk_table = smu->smu_table.clocks_table;



	if (!clk_table || clk_type >= SMU_CLK_COUNT)

		return -EINVAL;



	switch (clk_type) {

	case SMU_SOCCLK:

		if (dpm_level >= clk_table->NumSocClkLevelsEnabled)

			return -EINVAL;

		*freq = clk_table->SocClocks[dpm_level];

		break;

	case SMU_VCLK:

		if (dpm_level >= clk_table->VcnClkLevelsEnabled)

			return -EINVAL;

		*freq = clk_table->VClocks[dpm_level];

		break;

	case SMU_DCLK:

		if (dpm_level >= clk_table->VcnClkLevelsEnabled)

			return -EINVAL;

		*freq = clk_table->DClocks[dpm_level];

		break;

	case SMU_UCLK:

	case SMU_MCLK:

		if (dpm_level >= clk_table->NumDfPstatesEnabled)

			return -EINVAL;

		*freq = clk_table->DfPstateTable[dpm_level].MemClk;

		break;

	case SMU_FCLK:

		if (dpm_level >= clk_table->NumDfPstatesEnabled)

			return -EINVAL;

		*freq = clk_table->DfPstateTable[dpm_level].FClk;

		break;

	default:

		return -EINVAL;

	}



	return 0;

}



static int yellow_carp_print_clk_levels(struct smu_context *smu,

				enum smu_clk_type clk_type, char *buf)

{

	int size = 0;

	int i, size = 0, ret = 0;

	uint32_t cur_value = 0, value = 0, count = 0;



	switch (clk_type) {

	case SMU_OD_SCLK:
@@ -476,10 +579,33 @@ static int yellow_carp_print_clk_levels(struct smu_context *smu, 
		size += sprintf(buf + size, "SCLK: %7uMhz %10uMhz\n",

						smu->gfx_default_hard_min_freq, smu->gfx_default_soft_max_freq);

		break;

	case SMU_SOCCLK:

	case SMU_VCLK:

	case SMU_DCLK:

	case SMU_MCLK:

	case SMU_FCLK:

		ret = yellow_carp_get_current_clk_freq(smu, clk_type, &cur_value);

		if (ret)

			goto print_clk_out;



		ret = yellow_carp_get_dpm_level_count(smu, clk_type, &count);

		if (ret)

			goto print_clk_out;



		for (i = 0; i < count; i++) {

			ret = yellow_carp_get_dpm_freq_by_index(smu, clk_type, i, &value);

			if (ret)

				goto print_clk_out;



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

					cur_value == value ? "*" : "");

		}

		break;

	default:

		break;

	}



print_clk_out:

	return size;

}