drm/amd/powerplay: add support for ATOM GFXCLK table v2.

New vbios table format on some boards.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c

@@ -2865,6 +2865,7 @@ static int vega10_get_pp_table_entry_callback_func(struct pp_hwmgr *hwmgr,
 		void *state, struct pp_power_state *power_state,
 		void *pp_table, uint32_t classification_flag)
 {
+	ATOM_Vega10_GFXCLK_Dependency_Record_V2 *patom_record_V2;
 	struct vega10_power_state *vega10_power_state =
 			cast_phw_vega10_power_state(&(power_state->hardware));
 	struct vega10_performance_level *performance_level;
@@ -2941,11 +2942,16 @@ static int vega10_get_pp_table_entry_callback_func(struct pp_hwmgr *hwmgr,
 
 	performance_level = &(vega10_power_state->performance_levels
 				[vega10_power_state->performance_level_count++]);
-
 	performance_level->soc_clock = socclk_dep_table->entries
-			[state_entry->ucSocClockIndexHigh].ulClk;
-	performance_level->gfx_clock = gfxclk_dep_table->entries
+				[state_entry->ucSocClockIndexHigh].ulClk;
+	if (gfxclk_dep_table->ucRevId == 0) {
+		performance_level->gfx_clock = gfxclk_dep_table->entries
 			[state_entry->ucGfxClockIndexHigh].ulClk;
+	} else if (gfxclk_dep_table->ucRevId == 1) {
+		patom_record_V2 = (ATOM_Vega10_GFXCLK_Dependency_Record_V2 *)gfxclk_dep_table->entries;
+		performance_level->gfx_clock = patom_record_V2[state_entry->ucGfxClockIndexHigh].ulClk;
+	}
+
 	performance_level->mem_clock = mclk_dep_table->entries
 			[state_entry->ucMemClockIndexHigh].ulMemClk;
 	return 0;
@@ -3349,7 +3355,6 @@ static int vega10_populate_and_upload_sclk_mclk_dpm_levels(
 				dpm_table->
 				gfx_table.dpm_levels[dpm_table->gfx_table.count - 1].
 				value = sclk;
-
 				if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
 						PHM_PlatformCaps_OD6PlusinACSupport) ||
 					phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
@@ -3472,7 +3477,6 @@ static int vega10_populate_and_upload_sclk_mclk_dpm_levels(
 					return result);
 		}
 	}
-
 	return result;
 }
 

drivers/gpu/drm/amd/powerplay/hwmgr/vega10_pptable.h

@@ -144,6 +144,15 @@ typedef struct _ATOM_Vega10_GFXCLK_Dependency_Record {
 	USHORT usAVFSOffset;                                        /* AVFS Voltage offset */
 } ATOM_Vega10_GFXCLK_Dependency_Record;
 
+typedef struct _ATOM_Vega10_GFXCLK_Dependency_Record_V2 {
+	ULONG  ulClk;
+	UCHAR  ucVddInd;
+	USHORT usCKSVOffsetandDisable;
+	USHORT usAVFSOffset;
+	UCHAR  ucACGEnable;
+	UCHAR  ucReserved[3];
+} ATOM_Vega10_GFXCLK_Dependency_Record_V2;
+
 typedef struct _ATOM_Vega10_MCLK_Dependency_Record {
 	ULONG  ulMemClk;                                            /* Clock Frequency */
 	UCHAR  ucVddInd;                                            /* SOC_VDD index */

drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c

@@ -585,6 +585,7 @@ static int get_gfxclk_voltage_dependency_table(
 	uint32_t table_size, i;
 	struct phm_ppt_v1_clock_voltage_dependency_table
 				*clk_table;
+	ATOM_Vega10_GFXCLK_Dependency_Record_V2 *patom_record_v2;
 
 	PP_ASSERT_WITH_CODE((clk_dep_table->ucNumEntries != 0),
 			"Invalid PowerPlay Table!", return -1);
@@ -601,18 +602,41 @@ static int get_gfxclk_voltage_dependency_table(
 
 	clk_table->count = clk_dep_table->ucNumEntries;
 
-	for (i = 0; i < clk_table->count; i++) {
-		clk_table->entries[i].vddInd =
+	if (clk_dep_table->ucRevId == 0) {
+		for (i = 0; i < clk_table->count; i++) {
+			clk_table->entries[i].vddInd =
 				clk_dep_table->entries[i].ucVddInd;
-		clk_table->entries[i].clk =
+			clk_table->entries[i].clk =
 				le32_to_cpu(clk_dep_table->entries[i].ulClk);
-		clk_table->entries[i].cks_enable =
-				(((clk_dep_table->entries[i].usCKSVOffsetandDisable & 0x8000)
+			clk_table->entries[i].cks_enable =
+				(((le16_to_cpu(clk_dep_table->entries[i].usCKSVOffsetandDisable) & 0x8000)
 						>> 15) == 0) ? 1 : 0;
-		clk_table->entries[i].cks_voffset =
-				(clk_dep_table->entries[i].usCKSVOffsetandDisable & 0x7F);
-		clk_table->entries[i].sclk_offset =
-				clk_dep_table->entries[i].usAVFSOffset;
+			clk_table->entries[i].cks_voffset =
+				le16_to_cpu(clk_dep_table->entries[i].usCKSVOffsetandDisable) & 0x7F;
+			clk_table->entries[i].sclk_offset =
+				le16_to_cpu(clk_dep_table->entries[i].usAVFSOffset);
+		}
+	} else if (clk_dep_table->ucRevId == 1) {
+		patom_record_v2 = (ATOM_Vega10_GFXCLK_Dependency_Record_V2 *)clk_dep_table->entries;
+		for (i = 0; i < clk_table->count; i++) {
+			clk_table->entries[i].vddInd =
+					patom_record_v2->ucVddInd;
+			clk_table->entries[i].clk =
+					le32_to_cpu(patom_record_v2->ulClk);
+			clk_table->entries[i].cks_enable =
+					(((le16_to_cpu(patom_record_v2->usCKSVOffsetandDisable) & 0x8000)
+							>> 15) == 0) ? 1 : 0;
+			clk_table->entries[i].cks_voffset =
+					le16_to_cpu(patom_record_v2->usCKSVOffsetandDisable) & 0x7F;
+			clk_table->entries[i].sclk_offset =
+					le16_to_cpu(patom_record_v2->usAVFSOffset);
+			patom_record_v2++;
+		}
+	} else {
+		kfree(clk_table);
+		PP_ASSERT_WITH_CODE(false,
+			"Unsupported GFXClockDependencyTable Revision!",
+			return -EINVAL);
 	}
 
 	*pp_vega10_clk_dep_table = clk_table;