platform/x86/amd/pmf: Update SMU metrics table for 1AH family series

The SMU metrics table has been revised for the 1AH family series.
Introduce a new metrics table structure to retrieve comprehensive metrics
information from the PMFW. This information will be utilized by the PMF
driver to adjust system thermals.
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20240819063404.378061-2-Shyam-sundar.S-k@amd.comReviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/amd/pmf/core.c

@@ -255,7 +255,19 @@ int amd_pmf_set_dram_addr(struct amd_pmf_dev *dev, bool alloc_buffer)
 
 	/* Get Metrics Table Address */
 	if (alloc_buffer) {
-		dev->buf = kzalloc(sizeof(dev->m_table), GFP_KERNEL);
+		switch (dev->cpu_id) {
+		case AMD_CPU_ID_PS:
+		case AMD_CPU_ID_RMB:
+			dev->mtable_size = sizeof(dev->m_table);
+			break;
+		case PCI_DEVICE_ID_AMD_1AH_M20H_ROOT:
+			dev->mtable_size = sizeof(dev->m_table_v2);
+			break;
+		default:
+			dev_err(dev->dev, "Invalid CPU id: 0x%x", dev->cpu_id);
+		}
+
+		dev->buf = kzalloc(dev->mtable_size, GFP_KERNEL);
 		if (!dev->buf)
 			return -ENOMEM;
 	}

drivers/platform/x86/amd/pmf/pmf.h

@@ -198,6 +198,53 @@ struct apmf_fan_idx {
 	u32 fan_ctl_idx;
 } __packed;
 
+struct smu_pmf_metrics_v2 {
+	u16 core_frequency[16];		/* MHz */
+	u16 core_power[16];		/* mW */
+	u16 core_temp[16];		/* centi-C */
+	u16 gfx_temp;			/* centi-C */
+	u16 soc_temp;			/* centi-C */
+	u16 stapm_opn_limit;		/* mW */
+	u16 stapm_cur_limit;		/* mW */
+	u16 infra_cpu_maxfreq;		/* MHz */
+	u16 infra_gfx_maxfreq;		/* MHz */
+	u16 skin_temp;			/* centi-C */
+	u16 gfxclk_freq;		/* MHz */
+	u16 fclk_freq;			/* MHz */
+	u16 gfx_activity;		/* GFX busy % [0-100] */
+	u16 socclk_freq;		/* MHz */
+	u16 vclk_freq;			/* MHz */
+	u16 vcn_activity;		/* VCN busy % [0-100] */
+	u16 vpeclk_freq;		/* MHz */
+	u16 ipuclk_freq;		/* MHz */
+	u16 ipu_busy[8];		/* NPU busy % [0-100] */
+	u16 dram_reads;			/* MB/sec */
+	u16 dram_writes;		/* MB/sec */
+	u16 core_c0residency[16];	/* C0 residency % [0-100] */
+	u16 ipu_power;			/* mW */
+	u32 apu_power;			/* mW */
+	u32 gfx_power;			/* mW */
+	u32 dgpu_power;			/* mW */
+	u32 socket_power;		/* mW */
+	u32 all_core_power;		/* mW */
+	u32 filter_alpha_value;		/* time constant [us] */
+	u32 metrics_counter;
+	u16 memclk_freq;		/* MHz */
+	u16 mpipuclk_freq;		/* MHz */
+	u16 ipu_reads;			/* MB/sec */
+	u16 ipu_writes;			/* MB/sec */
+	u32 throttle_residency_prochot;
+	u32 throttle_residency_spl;
+	u32 throttle_residency_fppt;
+	u32 throttle_residency_sppt;
+	u32 throttle_residency_thm_core;
+	u32 throttle_residency_thm_gfx;
+	u32 throttle_residency_thm_soc;
+	u16 psys;
+	u16 spare1;
+	u32 spare[6];
+} __packed;
+
 struct smu_pmf_metrics {
 	u16 gfxclk_freq; /* in MHz */
 	u16 socclk_freq; /* in MHz */
@@ -295,6 +342,7 @@ struct amd_pmf_dev {
 	int hb_interval; /* SBIOS heartbeat interval */
 	struct delayed_work heart_beat;
 	struct smu_pmf_metrics m_table;
+	struct smu_pmf_metrics_v2 m_table_v2;
 	struct delayed_work work_buffer;
 	ktime_t start_time;
 	int socket_power_history[AVG_SAMPLE_SIZE];
@@ -319,6 +367,7 @@ struct amd_pmf_dev {
 	bool smart_pc_enabled;
 	u16 pmf_if_version;
 	struct input_dev *pmf_idev;
+	size_t mtable_size;
 };
 
 struct apmf_sps_prop_granular_v2 {

drivers/platform/x86/amd/pmf/spc.c

@@ -53,30 +53,49 @@ void amd_pmf_dump_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *
 void amd_pmf_dump_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *in) {}
 #endif
 
-static void amd_pmf_get_smu_info(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *in)
+static void amd_pmf_get_c0_residency(u16 *core_res, size_t size, struct ta_pmf_enact_table *in)
 {
 	u16 max, avg = 0;
 	int i;
 
-	memset(dev->buf, 0, sizeof(dev->m_table));
-	amd_pmf_send_cmd(dev, SET_TRANSFER_TABLE, 0, 7, NULL);
-	memcpy(&dev->m_table, dev->buf, sizeof(dev->m_table));
-
-	in->ev_info.socket_power = dev->m_table.apu_power + dev->m_table.dgpu_power;
-	in->ev_info.skin_temperature = dev->m_table.skin_temp;
-
 	/* Get the avg and max C0 residency of all the cores */
-	max = dev->m_table.avg_core_c0residency[0];
-	for (i = 0; i < ARRAY_SIZE(dev->m_table.avg_core_c0residency); i++) {
-		avg += dev->m_table.avg_core_c0residency[i];
-		if (dev->m_table.avg_core_c0residency[i] > max)
-			max = dev->m_table.avg_core_c0residency[i];
+	max = *core_res;
+	for (i = 0; i < size; i++) {
+		avg += core_res[i];
+		if (core_res[i] > max)
+			max = core_res[i];
 	}
-
-	avg = DIV_ROUND_CLOSEST(avg, ARRAY_SIZE(dev->m_table.avg_core_c0residency));
+	avg = DIV_ROUND_CLOSEST(avg, size);
 	in->ev_info.avg_c0residency = avg;
 	in->ev_info.max_c0residency = max;
-	in->ev_info.gfx_busy = dev->m_table.avg_gfx_activity;
+}
+
+static void amd_pmf_get_smu_info(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *in)
+{
+	/* Get the updated metrics table data */
+	memset(dev->buf, 0, dev->mtable_size);
+	amd_pmf_send_cmd(dev, SET_TRANSFER_TABLE, 0, 7, NULL);
+
+	switch (dev->cpu_id) {
+	case AMD_CPU_ID_PS:
+		memcpy(&dev->m_table, dev->buf, dev->mtable_size);
+		in->ev_info.socket_power = dev->m_table.apu_power + dev->m_table.dgpu_power;
+		in->ev_info.skin_temperature = dev->m_table.skin_temp;
+		in->ev_info.gfx_busy = dev->m_table.avg_gfx_activity;
+		amd_pmf_get_c0_residency(dev->m_table.avg_core_c0residency,
+					 ARRAY_SIZE(dev->m_table.avg_core_c0residency), in);
+		break;
+	case PCI_DEVICE_ID_AMD_1AH_M20H_ROOT:
+		memcpy(&dev->m_table_v2, dev->buf, dev->mtable_size);
+		in->ev_info.socket_power = dev->m_table_v2.apu_power + dev->m_table_v2.dgpu_power;
+		in->ev_info.skin_temperature = dev->m_table_v2.skin_temp;
+		in->ev_info.gfx_busy = dev->m_table_v2.gfx_activity;
+		amd_pmf_get_c0_residency(dev->m_table_v2.core_c0residency,
+					 ARRAY_SIZE(dev->m_table_v2.core_c0residency), in);
+		break;
+	default:
+		dev_err(dev->dev, "Unsupported CPU id: 0x%x", dev->cpu_id);
+	}
 }
 
 static const char * const pmf_battery_supply_name[] = {