[PATCH] drm/amd/pm: Get max/min frequency on aldebaran VF

[Lijo Lazar]

PMFW interface to get max/min frequencies is not available on aldebaran
VFs. Use data, if available, in DPM tables to get the max/min
frequencies.

Signed-off-by: Lijo Lazar <lijo.lazar at amd.com>
---
 .../drm/amd/pm/swsmu/smu13/aldebaran_ppt.c    | 57 ++++++++++++++++++-
 1 file changed, 56 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
index 9a61cf904275..b067147b7c41 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
@@ -342,6 +342,61 @@ static int aldebaran_get_allowed_feature_mask(struct smu_context *smu,
 	return 0;
 }
 
+static int aldebaran_get_dpm_ultimate_freq(struct smu_context *smu,
+					   enum smu_clk_type clk_type,
+					   uint32_t *min, uint32_t *max)
+{
+	struct smu_13_0_dpm_context *dpm_context = smu->smu_dpm.dpm_context;
+	struct smu_13_0_dpm_table *dpm_table;
+	uint32_t min_clk, max_clk;
+
+	if (amdgpu_sriov_vf(smu->adev)) {
+		switch (clk_type) {
+		case SMU_MCLK:
+		case SMU_UCLK:
+			dpm_table = &dpm_context->dpm_tables.uclk_table;
+			break;
+		case SMU_GFXCLK:
+		case SMU_SCLK:
+			dpm_table = &dpm_context->dpm_tables.gfx_table;
+			break;
+		case SMU_SOCCLK:
+			dpm_table = &dpm_context->dpm_tables.soc_table;
+			break;
+		case SMU_FCLK:
+			dpm_table = &dpm_context->dpm_tables.fclk_table;
+			break;
+		case SMU_VCLK:
+			dpm_table = &dpm_context->dpm_tables.vclk_table;
+			break;
+		case SMU_DCLK:
+			dpm_table = &dpm_context->dpm_tables.dclk_table;
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		min_clk = dpm_table->min;
+		max_clk = dpm_table->max;
+
+		if (min) {
+			if (!min_clk)
+				return -ENODATA;
+			*min = min_clk;
+		}
+		if (max) {
+			if (!max_clk)
+				return -ENODATA;
+			*max = max_clk;
+		}
+
+	} else {
+		return smu_v13_0_get_dpm_ultimate_freq(smu, clk_type, min, max);
+	}
+
+	return 0;
+}
+
 static int aldebaran_set_default_dpm_table(struct smu_context *smu)
 {
 	struct smu_13_0_dpm_context *dpm_context = smu->smu_dpm.dpm_context;
@@ -2081,7 +2136,7 @@ static const struct pptable_funcs aldebaran_ppt_funcs = {
 	.set_azalia_d3_pme = smu_v13_0_set_azalia_d3_pme,
 	.get_max_sustainable_clocks_by_dc = smu_v13_0_get_max_sustainable_clocks_by_dc,
 	.get_bamaco_support = aldebaran_get_bamaco_support,
-	.get_dpm_ultimate_freq = smu_v13_0_get_dpm_ultimate_freq,
+	.get_dpm_ultimate_freq = aldebaran_get_dpm_ultimate_freq,
 	.set_soft_freq_limited_range = aldebaran_set_soft_freq_limited_range,
 	.od_edit_dpm_table = aldebaran_usr_edit_dpm_table,
 	.set_df_cstate = aldebaran_set_df_cstate,
-- 
2.49.0