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

Add callback function to get the hard frequency range of a clock domain
for yellow carp.
Signed-off-by: Xiaomeng Hou <Xiaomeng.Hou@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -670,6 +670,116 @@ static bool yellow_carp_clk_dpm_is_enabled(struct smu_context *smu,
 	return smu_cmn_feature_is_enabled(smu, feature_id);
 }
 
+static int yellow_carp_get_dpm_ultimate_freq(struct smu_context *smu,
+							enum smu_clk_type clk_type,
+							uint32_t *min,
+							uint32_t *max)
+{
+	DpmClocks_t *clk_table = smu->smu_table.clocks_table;
+	uint32_t clock_limit;
+	uint32_t max_dpm_level, min_dpm_level;
+	int ret = 0;
+
+	if (!yellow_carp_clk_dpm_is_enabled(smu, clk_type)) {
+		switch (clk_type) {
+		case SMU_MCLK:
+		case SMU_UCLK:
+			clock_limit = smu->smu_table.boot_values.uclk;
+			break;
+		case SMU_FCLK:
+			clock_limit = smu->smu_table.boot_values.fclk;
+			break;
+		case SMU_GFXCLK:
+		case SMU_SCLK:
+			clock_limit = smu->smu_table.boot_values.gfxclk;
+			break;
+		case SMU_SOCCLK:
+			clock_limit = smu->smu_table.boot_values.socclk;
+			break;
+		case SMU_VCLK:
+			clock_limit = smu->smu_table.boot_values.vclk;
+			break;
+		case SMU_DCLK:
+			clock_limit = smu->smu_table.boot_values.dclk;
+			break;
+		default:
+			clock_limit = 0;
+			break;
+		}
+
+		/* clock in Mhz unit */
+		if (min)
+			*min = clock_limit / 100;
+		if (max)
+			*max = clock_limit / 100;
+
+		return 0;
+	}
+
+	if (max) {
+		switch (clk_type) {
+		case SMU_GFXCLK:
+		case SMU_SCLK:
+			*max = clk_table->MaxGfxClk;
+			break;
+		case SMU_MCLK:
+		case SMU_UCLK:
+		case SMU_FCLK:
+			max_dpm_level = 0;
+			break;
+		case SMU_SOCCLK:
+			max_dpm_level = clk_table->NumSocClkLevelsEnabled - 1;
+			break;
+		case SMU_VCLK:
+		case SMU_DCLK:
+			max_dpm_level = clk_table->VcnClkLevelsEnabled - 1;
+			break;
+		default:
+			ret = -EINVAL;
+			goto failed;
+		}
+
+		if (clk_type != SMU_GFXCLK && clk_type != SMU_SCLK) {
+			ret = yellow_carp_get_dpm_freq_by_index(smu, clk_type, max_dpm_level, max);
+			if (ret)
+				goto failed;
+		}
+	}
+
+	if (min) {
+		switch (clk_type) {
+		case SMU_GFXCLK:
+		case SMU_SCLK:
+			*min = clk_table->MinGfxClk;
+			break;
+		case SMU_MCLK:
+		case SMU_UCLK:
+		case SMU_FCLK:
+			min_dpm_level = clk_table->NumDfPstatesEnabled - 1;
+			break;
+		case SMU_SOCCLK:
+			min_dpm_level = 0;
+			break;
+		case SMU_VCLK:
+		case SMU_DCLK:
+			min_dpm_level = 0;
+			break;
+		default:
+			ret = -EINVAL;
+			goto failed;
+		}
+
+		if (clk_type != SMU_GFXCLK && clk_type != SMU_SCLK) {
+			ret = yellow_carp_get_dpm_freq_by_index(smu, clk_type, min_dpm_level, min);
+			if (ret)
+				goto failed;
+		}
+	}
+
+failed:
+	return ret;
+}
+
 static int yellow_carp_set_soft_freq_limited_range(struct smu_context *smu,
 							enum smu_clk_type clk_type,
 							uint32_t min,
@@ -835,6 +945,7 @@ static const struct pptable_funcs yellow_carp_ppt_funcs = {
 	.set_driver_table_location = smu_v13_0_1_set_driver_table_location,
 	.gfx_off_control = smu_v13_0_1_gfx_off_control,
 	.post_init = yellow_carp_post_smu_init,
+	.get_dpm_ultimate_freq = yellow_carp_get_dpm_ultimate_freq,
 	.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,