drm/amd/powerplay: refine pp code for raven

delete useless code.
Signed-off-by: Rex Zhu <Rex.Zhu@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/rv_hwmgr.c

@@ -38,20 +38,17 @@
 #include "pp_soc15.h"
 
 #define RAVEN_MAX_DEEPSLEEP_DIVIDER_ID     5
-#define RAVEN_MINIMUM_ENGINE_CLOCK         800   //8Mhz, the low boundary of engine clock allowed on this chip
+#define RAVEN_MINIMUM_ENGINE_CLOCK         800   /* 8Mhz, the low boundary of engine clock allowed on this chip */
 #define SCLK_MIN_DIV_INTV_SHIFT         12
-#define RAVEN_DISPCLK_BYPASS_THRESHOLD     10000 //100mhz
+#define RAVEN_DISPCLK_BYPASS_THRESHOLD     10000 /* 100Mhz */
 #define SMC_RAM_END                     0x40000
 
 static const unsigned long PhwRaven_Magic = (unsigned long) PHM_Rv_Magic;
+
+
 int rv_display_clock_voltage_request(struct pp_hwmgr *hwmgr,
 		struct pp_display_clock_request *clock_req);
 
-struct phm_vq_budgeting_record rv_vqtable[] = {
-	/* _TBD
-	 * CUs, SSP low, SSP High, Min Sclk Low, Min Sclk, High, AWD/non-AWD, DCLK, ECLK, Sustainable Sclk, Sustainable CUs */
-	{ 8, 0, 45, 0, 0, VQ_DisplayConfig_NoneAWD, 80000, 120000, 4, 0 },
-};
 
 static struct rv_power_state *cast_rv_ps(struct pp_hw_power_state *hw_ps)
 {
@@ -70,101 +67,24 @@ static const struct rv_power_state *cast_const_rv_ps(
 	return (struct rv_power_state *)hw_ps;
 }
 
-static int rv_init_vq_budget_table(struct pp_hwmgr *hwmgr)
-{
-	uint32_t table_size, i;
-	struct phm_vq_budgeting_table *ptable;
-	uint32_t num_entries = ARRAY_SIZE(rv_vqtable);
-
-	if (hwmgr->dyn_state.vq_budgeting_table != NULL)
-		return 0;
-
-	table_size = sizeof(struct phm_vq_budgeting_table) +
-			sizeof(struct phm_vq_budgeting_record) * (num_entries - 1);
-
-	ptable = kzalloc(table_size, GFP_KERNEL);
-	if (NULL == ptable)
-		return -ENOMEM;
-
-	ptable->numEntries = (uint8_t) num_entries;
-
-	for (i = 0; i < ptable->numEntries; i++) {
-		ptable->entries[i].ulCUs = rv_vqtable[i].ulCUs;
-		ptable->entries[i].ulSustainableSOCPowerLimitLow = rv_vqtable[i].ulSustainableSOCPowerLimitLow;
-		ptable->entries[i].ulSustainableSOCPowerLimitHigh = rv_vqtable[i].ulSustainableSOCPowerLimitHigh;
-		ptable->entries[i].ulMinSclkLow = rv_vqtable[i].ulMinSclkLow;
-		ptable->entries[i].ulMinSclkHigh = rv_vqtable[i].ulMinSclkHigh;
-		ptable->entries[i].ucDispConfig = rv_vqtable[i].ucDispConfig;
-		ptable->entries[i].ulDClk = rv_vqtable[i].ulDClk;
-		ptable->entries[i].ulEClk = rv_vqtable[i].ulEClk;
-		ptable->entries[i].ulSustainableSclk = rv_vqtable[i].ulSustainableSclk;
-		ptable->entries[i].ulSustainableCUs = rv_vqtable[i].ulSustainableCUs;
-	}
-
-	hwmgr->dyn_state.vq_budgeting_table = ptable;
-
-	return 0;
-}
-
 static int rv_initialize_dpm_defaults(struct pp_hwmgr *hwmgr)
 {
 	struct rv_hwmgr *rv_hwmgr = (struct rv_hwmgr *)(hwmgr->backend);
-	struct cgs_system_info sys_info = {0};
-	int result;
 
-	rv_hwmgr->ddi_power_gating_disabled = 0;
-	rv_hwmgr->bapm_enabled = 1;
 	rv_hwmgr->dce_slow_sclk_threshold = 30000;
-	rv_hwmgr->disable_driver_thermal_policy = 1;
 	rv_hwmgr->thermal_auto_throttling_treshold = 0;
 	rv_hwmgr->is_nb_dpm_enabled = 1;
 	rv_hwmgr->dpm_flags = 1;
-	rv_hwmgr->disable_smu_acp_s3_handshake = 1;
-	rv_hwmgr->disable_notify_smu_vpu_recovery = 0;
 	rv_hwmgr->gfx_off_controled_by_driver = false;
 
-	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
-					PHM_PlatformCaps_DynamicM3Arbiter);
-
-	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
-					PHM_PlatformCaps_UVDPowerGating);
-
-	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
-					PHM_PlatformCaps_UVDDynamicPowerGating);
-
-	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
-					PHM_PlatformCaps_VCEPowerGating);
-
-	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
-					PHM_PlatformCaps_SamuPowerGating);
-
-	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
-					PHM_PlatformCaps_ACP);
-
 	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
 					PHM_PlatformCaps_SclkDeepSleep);
 
-	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
-				PHM_PlatformCaps_GFXDynamicMGPowerGating);
-
 	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
 				PHM_PlatformCaps_SclkThrottleLowNotification);
 
-	phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
-				PHM_PlatformCaps_DisableVoltageIsland);
-
 	phm_cap_set(hwmgr->platform_descriptor.platformCaps,
-					PHM_PlatformCaps_DynamicUVDState);
-
-	sys_info.size = sizeof(struct cgs_system_info);
-	sys_info.info_id = CGS_SYSTEM_INFO_PG_FLAGS;
-	result = cgs_query_system_info(hwmgr->device, &sys_info);
-	if (!result) {
-		if (sys_info.value & AMD_PG_SUPPORT_GFX_DMG)
-			phm_cap_set(hwmgr->platform_descriptor.platformCaps,
-				      PHM_PlatformCaps_GFXDynamicMGPowerGating);
-	}
-
+				PHM_PlatformCaps_PowerPlaySupport);
 	return 0;
 }
 
@@ -256,14 +176,6 @@ static int rv_tf_set_clock_limit(struct pp_hwmgr *hwmgr, void *input,
 		smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
 					PPSMC_MSG_SetMinDeepSleepDcefclk,
 					clocks.dcefClockInSR / 100);
-	/*
-	if(!rv_data->isp_tileA_power_gated || !rv_data->isp_tileB_power_gated) {
-		if ((hwmgr->ispArbiter.iclk != 0) && (rv_data->ISPActualHardMinFreq != (hwmgr->ispArbiter.iclk / 100) )) {
-			smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
-					PPSMC_MSG_SetHardMinIspclkByFreq, hwmgr->ispArbiter.iclk / 100);
-			rv_read_arg_from_smc(hwmgr->smumgr, &rv_data->ISPActualHardMinFreq),
-		}
-	} */
 
 	if (((hwmgr->uvd_arbiter.vclk_soft_min / 100) != rv_data->vclk_soft_min) ||
 	    ((hwmgr->uvd_arbiter.dclk_soft_min / 100) != rv_data->dclk_soft_min)) {
@@ -301,6 +213,7 @@ static int rv_tf_set_clock_limit(struct pp_hwmgr *hwmgr, void *input,
 	return 0;
 }
 
+
 static int rv_tf_set_num_active_display(struct pp_hwmgr *hwmgr, void *input,
 				void *output, void *storage, int result)
 {
@@ -313,6 +226,7 @@ static int rv_tf_set_num_active_display(struct pp_hwmgr *hwmgr, void *input,
 	smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
 				PPSMC_MSG_SetDisplayCount,
 				num_of_active_displays);
+
 	return 0;
 }
 
@@ -563,9 +477,6 @@ static int rv_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
 		return result;
 	}
 
-	phm_cap_set(hwmgr->platform_descriptor.platformCaps,
-                PHM_PlatformCaps_PowerPlaySupport);
-
 	rv_populate_clock_table(hwmgr);
 
 	result = rv_get_system_info_data(hwmgr);
@@ -624,8 +535,6 @@ static int rv_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
 
 	hwmgr->platform_descriptor.minimumClocksReductionPercentage = 50;
 
-	rv_init_vq_budget_table(hwmgr);
-
 	return result;
 }
 
@@ -670,11 +579,6 @@ static int rv_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
 		hwmgr->dyn_state.vddc_dep_on_dal_pwrl = NULL;
 	}
 
-	if (NULL != hwmgr->dyn_state.vq_budgeting_table) {
-		kfree(hwmgr->dyn_state.vq_budgeting_table);
-		hwmgr->dyn_state.vq_budgeting_table = NULL;
-	}
-
 	kfree(hwmgr->backend);
 	hwmgr->backend = NULL;
 
@@ -711,18 +615,9 @@ static int rv_dpm_get_pp_table_entry_callback(
 {
 	struct rv_power_state *rv_ps = cast_rv_ps(hw_ps);
 
-	const ATOM_PPLIB_CZ_CLOCK_INFO *rv_clock_info = clock_info;
-
-	struct phm_clock_voltage_dependency_table *table =
-				    hwmgr->dyn_state.vddc_dependency_on_sclk;
-	uint8_t clock_info_index = rv_clock_info->index;
-
-	if (clock_info_index > (uint8_t)(hwmgr->platform_descriptor.hardwareActivityPerformanceLevels - 1))
-		clock_info_index = (uint8_t)(hwmgr->platform_descriptor.hardwareActivityPerformanceLevels - 1);
-
-	rv_ps->levels[index].engine_clock = table->entries[clock_info_index].clk;
-	rv_ps->levels[index].vddc_index = (uint8_t)table->entries[clock_info_index].v;
+	rv_ps->levels[index].engine_clock = 0;
 
+	rv_ps->levels[index].vddc_index = 0;
 	rv_ps->level = index + 1;
 
 	if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_SclkDeepSleep)) {
@@ -814,12 +709,12 @@ static int rv_get_performance_level(struct pp_hwmgr *hwmgr, const struct pp_hw_p
 	ps = cast_const_rv_ps(state);
 
 	level_index = index > ps->level - 1 ? ps->level - 1 : index;
-	level->coreClock = ps->levels[level_index].engine_clock;
+	level->coreClock = 30000;
 
 	if (designation == PHM_PerformanceLevelDesignation_PowerContainment) {
 		for (i = 1; i < ps->level; i++) {
 			if (ps->levels[i].engine_clock > data->dce_slow_sclk_threshold) {
-				level->coreClock = ps->levels[i].engine_clock;
+				level->coreClock = 30000;
 				break;
 			}
 		}
@@ -829,8 +724,9 @@ static int rv_get_performance_level(struct pp_hwmgr *hwmgr, const struct pp_hw_p
 		vol_dep_record_index = data->clock_vol_info.vdd_dep_on_fclk->count - 1;
 		level->memory_clock =
 			data->clock_vol_info.vdd_dep_on_fclk->entries[vol_dep_record_index].clk;
-	} else
+	} else {
 		level->memory_clock = data->clock_vol_info.vdd_dep_on_fclk->entries[0].clk;
+	}
 
 	level->nonLocalMemoryFreq = 0;
 	level->nonLocalMemoryWidth = 0;
@@ -1001,7 +897,8 @@ int rv_display_clock_voltage_request(struct pp_hwmgr *hwmgr,
 
 static int rv_get_max_high_clocks(struct pp_hwmgr *hwmgr, struct amd_pp_simple_clock_info *clocks)
 {
-	return -EINVAL;
+	clocks->engine_max_clock = 80000; /* driver can't get engine clock, temp hard code to 800MHz */
+	return 0;
 }
 
 static int rv_thermal_get_temperature(struct pp_hwmgr *hwmgr)