drm/amd/powerplay: support to get power index for sienna_cichlid

Add function to get smu power index for sienna_cichlid.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c

@@ -176,6 +176,11 @@ static struct smu_11_0_cmn2aisc_mapping sienna_cichlid_table_map[SMU_TABLE_COUNT
 	TAB_MAP(PACE),
 };
 
+static struct smu_11_0_cmn2aisc_mapping sienna_cichlid_pwr_src_map[SMU_POWER_SOURCE_COUNT] = {
+	PWR_MAP(AC),
+	PWR_MAP(DC),
+};
+
 static struct smu_11_0_cmn2aisc_mapping sienna_cichlid_workload_map[PP_SMC_POWER_PROFILE_COUNT] = {
 	WORKLOAD_MAP(PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT,	WORKLOAD_PPLIB_DEFAULT_BIT),
 	WORKLOAD_MAP(PP_SMC_POWER_PROFILE_FULLSCREEN3D,		WORKLOAD_PPLIB_FULL_SCREEN_3D_BIT),
@@ -246,6 +251,21 @@ static int sienna_cichlid_get_smu_table_index(struct smu_context *smc, uint32_t
 	return mapping.map_to;
 }
 
+static int sienna_cichlid_get_pwr_src_index(struct smu_context *smc, uint32_t index)
+{
+	struct smu_11_0_cmn2aisc_mapping mapping;
+
+	if (index >= SMU_POWER_SOURCE_COUNT)
+		return -EINVAL;
+
+	mapping = sienna_cichlid_pwr_src_map[index];
+	if (!(mapping.valid_mapping)) {
+		return -EINVAL;
+	}
+
+	return mapping.map_to;
+}
+
 static int sienna_cichlid_get_workload_type(struct smu_context *smu, enum PP_SMC_POWER_PROFILE profile)
 {
 	struct smu_11_0_cmn2aisc_mapping mapping;
@@ -2185,6 +2205,7 @@ static const struct pptable_funcs sienna_cichlid_ppt_funcs = {
 	.get_smu_clk_index = sienna_cichlid_get_smu_clk_index,
 	.get_smu_feature_index = sienna_cichlid_get_smu_feature_index,
 	.get_smu_table_index = sienna_cichlid_get_smu_table_index,
+	.get_smu_power_index = sienna_cichlid_get_pwr_src_index,
 	.get_workload_type = sienna_cichlid_get_workload_type,
 	.get_allowed_feature_mask = sienna_cichlid_get_allowed_feature_mask,
 	.set_default_dpm_table = sienna_cichlid_set_default_dpm_table,

drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.h

@@ -23,6 +23,12 @@
 #ifndef __SIENNA_CICHLID_PPT_H__
 #define __SIENNA_CICHLID_PPT_H__
 
+typedef enum {
+  POWER_SOURCE_AC,
+  POWER_SOURCE_DC,
+  POWER_SOURCE_COUNT,
+} POWER_SOURCE_e;
+
 extern void sienna_cichlid_set_ppt_funcs(struct smu_context *smu);
 
 #define smnPCIE_LC_SPEED_CNTL                   0x11140290