Commit a06370ed authored by Xiaomeng Hou's avatar Xiaomeng Hou Committed by Alex Deucher
Browse files

drm/amd/pm: add callback force_clk_levels for yellow carp 



Implement the sysfs API to set a range of allowed DPM levels for
specific clock domain.

v2: return error directly if the specified clock type not supported

Acked-by: default avatarHuang Rui <ray.huang@amd.com>
Signed-off-by: default avatarXiaomeng Hou <Xiaomeng.Hou@amd.com>
Reviewed-by: default avatarKevin Wang <kevin1.wang@amd.com>
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 0b8b1c4d

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

+114 −0
Original line number Diff line number Diff line
@@ -637,6 +637,82 @@ static int yellow_carp_get_dpm_freq_by_index(struct smu_context *smu, 
	return 0;

}



static bool yellow_carp_clk_dpm_is_enabled(struct smu_context *smu,

						enum smu_clk_type clk_type)

{

	enum smu_feature_mask feature_id = 0;



	switch (clk_type) {

	case SMU_MCLK:

	case SMU_UCLK:

	case SMU_FCLK:

		feature_id = SMU_FEATURE_DPM_FCLK_BIT;

		break;

	case SMU_GFXCLK:

	case SMU_SCLK:

		feature_id = SMU_FEATURE_DPM_GFXCLK_BIT;

		break;

	case SMU_SOCCLK:

		feature_id = SMU_FEATURE_DPM_SOCCLK_BIT;

		break;

	case SMU_VCLK:

	case SMU_DCLK:

		feature_id = SMU_FEATURE_VCN_DPM_BIT;

		break;

	default:

		return true;

	}



	return smu_cmn_feature_is_enabled(smu, feature_id);

}



static int yellow_carp_set_soft_freq_limited_range(struct smu_context *smu,

							enum smu_clk_type clk_type,

							uint32_t min,

							uint32_t max)

{

	enum smu_message_type msg_set_min, msg_set_max;

	int ret = 0;



	if (!yellow_carp_clk_dpm_is_enabled(smu, clk_type))

		return -EINVAL;



	switch (clk_type) {

	case SMU_GFXCLK:

	case SMU_SCLK:

		msg_set_min = SMU_MSG_SetHardMinGfxClk;

		msg_set_max = SMU_MSG_SetSoftMaxGfxClk;

		break;

	case SMU_FCLK:

	case SMU_MCLK:

		msg_set_min = SMU_MSG_SetHardMinFclkByFreq;

		msg_set_max = SMU_MSG_SetSoftMaxFclkByFreq;

		break;

	case SMU_SOCCLK:

		msg_set_min = SMU_MSG_SetHardMinSocclkByFreq;

		msg_set_max = SMU_MSG_SetSoftMaxSocclkByFreq;

		break;

	case SMU_VCLK:

	case SMU_DCLK:

		msg_set_min = SMU_MSG_SetHardMinVcn;

		msg_set_max = SMU_MSG_SetSoftMaxVcn;

		break;

	default:

		return -EINVAL;

	}



	ret = smu_cmn_send_smc_msg_with_param(smu, msg_set_min, min, NULL);

	if (ret)

		goto out;



	ret = smu_cmn_send_smc_msg_with_param(smu, msg_set_max, max, NULL);

	if (ret)

		goto out;



out:

	return ret;

}



static int yellow_carp_print_clk_levels(struct smu_context *smu,

				enum smu_clk_type clk_type, char *buf)

{
@@ -686,6 +762,43 @@ static int yellow_carp_print_clk_levels(struct smu_context *smu, 
	return size;

}



static int yellow_carp_force_clk_levels(struct smu_context *smu,

				enum smu_clk_type clk_type, uint32_t mask)

{

	uint32_t soft_min_level = 0, soft_max_level = 0;

	uint32_t min_freq = 0, max_freq = 0;

	int ret = 0;



	soft_min_level = mask ? (ffs(mask) - 1) : 0;

	soft_max_level = mask ? (fls(mask) - 1) : 0;



	switch (clk_type) {

	case SMU_SOCCLK:

	case SMU_MCLK:

	case SMU_FCLK:

	case SMU_VCLK:

	case SMU_DCLK:

		ret = yellow_carp_get_dpm_freq_by_index(smu, clk_type, soft_min_level, &min_freq);

		if (ret)

			goto force_level_out;



		ret = yellow_carp_get_dpm_freq_by_index(smu, clk_type, soft_max_level, &max_freq);

		if (ret)

			goto force_level_out;



		ret = yellow_carp_set_soft_freq_limited_range(smu, clk_type, min_freq, max_freq);

		if (ret)

			goto force_level_out;

		break;

	default:

		ret = -EINVAL;

		break;

	}



force_level_out:

	return ret;

}



static int yellow_carp_set_fine_grain_gfx_freq_parameters(struct smu_context *smu)

{

	DpmClocks_t *clk_table = smu->smu_table.clocks_table;
@@ -719,6 +832,7 @@ static const struct pptable_funcs yellow_carp_ppt_funcs = { 
	.post_init = yellow_carp_post_smu_init,

	.od_edit_dpm_table = yellow_carp_od_edit_dpm_table,

	.print_clk_levels = yellow_carp_print_clk_levels,

	.force_clk_levels = yellow_carp_force_clk_levels,

	.set_fine_grain_gfx_freq_parameters = yellow_carp_set_fine_grain_gfx_freq_parameters,

};