amdsmn(4), amdtemp(4): add support for Zen 4

Zen 4 support, tested on Ryzen 9 7900

Reviewed by:	imp (previous version), mhorne
Approved by:	mhorne
Obtained from:	http://jyurai.ddo.jp/~amorita/diary/?date=20221102#p01
Differential Revision:	https://reviews.freebsd.org/D41049

sys/dev/amdsmn/amdsmn.c

@@ -61,6 +61,7 @@ __FBSDID("$FreeBSD$");
 #define	PCI_DEVICE_ID_AMD_17H_M10H_ROOT		0x15d0
 #define	PCI_DEVICE_ID_AMD_17H_M30H_ROOT		0x1480	/* Also M70H, F19H M00H/M20H */
 #define	PCI_DEVICE_ID_AMD_17H_M60H_ROOT		0x1630
+#define	PCI_DEVICE_ID_AMD_19H_M60H_ROOT		0x14d8
 
 struct pciid;
 struct amdsmn_softc {
@@ -104,6 +105,12 @@ static const struct pciid {
 		.amdsmn_addr_reg = F17H_SMN_ADDR_REG,
 		.amdsmn_data_reg = F17H_SMN_DATA_REG,
 	},
+	{
+		.amdsmn_vendorid = CPU_VENDOR_AMD,
+		.amdsmn_deviceid = PCI_DEVICE_ID_AMD_19H_M60H_ROOT,
+		.amdsmn_addr_reg = F17H_SMN_ADDR_REG,
+		.amdsmn_data_reg = F17H_SMN_DATA_REG,
+	},
 };
 
 /*

sys/dev/amdtemp/amdtemp.c

@@ -84,6 +84,7 @@ struct amdtemp_softc {
 #define	AMDTEMP_FLAG_CT_10BIT	0x02	/* CurTmp is 10-bit wide. */
 #define	AMDTEMP_FLAG_ALT_OFFSET	0x04	/* CurTmp starts at -28C. */
 	int32_t		sc_offset;
+	int32_t		sc_temp_base;
 	int32_t		(*sc_gettemp)(device_t, amdsensor_t);
 	struct sysctl_oid *sc_sysctl_cpu[MAXCPU];
 	struct intr_config_hook sc_ich;
@@ -111,6 +112,7 @@ struct amdtemp_softc {
 #define	DEVICEID_AMD_HOSTB17H_M10H_ROOT	0x15d0
 #define	DEVICEID_AMD_HOSTB17H_M30H_ROOT	0x1480	/* Also M70H, F19H M00H/M20H */
 #define	DEVICEID_AMD_HOSTB17H_M60H_ROOT	0x1630
+#define	DEVICEID_AMD_HOSTB19H_M60H_ROOT	0x14d8
 
 static const struct amdtemp_product {
 	uint16_t	amdtemp_vendorid;
@@ -135,6 +137,7 @@ static const struct amdtemp_product {
 	{ VENDORID_AMD,	DEVICEID_AMD_HOSTB17H_M10H_ROOT, false },
 	{ VENDORID_AMD,	DEVICEID_AMD_HOSTB17H_M30H_ROOT, false },
 	{ VENDORID_AMD,	DEVICEID_AMD_HOSTB17H_M60H_ROOT, false },
+	{ VENDORID_AMD,	DEVICEID_AMD_HOSTB19H_M60H_ROOT, false },
 };
 
 /*
@@ -180,6 +183,8 @@ static const struct amdtemp_product {
 #define	AMDTEMP_17H_CCD_TMP_BASE	0x59954
 #define	AMDTEMP_17H_CCD_TMP_VALID	(1u << 11)
 
+#define	AMDTEMP_ZEN4_CCD_TMP_BASE	0x59b08
+
 /*
  * AMD temperature range adjustment, in deciKelvins (i.e., 49.0 Celsius).
  */
@@ -519,6 +524,8 @@ amdtemp_attach(device_t dev)
 	    dev, CORE0_SENSOR0, amdtemp_sysctl, "IK",
 	    "Core 0 / Sensor 0 temperature");
 
+	sc->sc_temp_base = AMDTEMP_17H_CCD_TMP_BASE;
+
 	if (family == 0x17)
 		amdtemp_probe_ccd_sensors17h(dev, model);
 	else if (family == 0x19)
@@ -780,7 +787,7 @@ amdtemp_gettemp17h(device_t dev, amdsensor_t sensor)
 		return (amdtemp_decode_fam17h_tctl(sc->sc_offset, val));
 	case CCD_BASE ... CCD_MAX:
 		/* Tccd<N> */
-		error = amdsmn_read(sc->sc_smn, AMDTEMP_17H_CCD_TMP_BASE +
+		error = amdsmn_read(sc->sc_smn, sc->sc_temp_base +
 		    (((int)sensor - CCD_BASE) * sizeof(val)), &val);
 		KASSERT(error == 0, ("amdsmn_read2"));
 		KASSERT((val & AMDTEMP_17H_CCD_TMP_VALID) != 0,
@@ -801,7 +808,7 @@ amdtemp_probe_ccd_sensors(device_t dev, uint32_t maxreg)
 
 	sc = device_get_softc(dev);
 	for (i = 0; i < maxreg; i++) {
-		error = amdsmn_read(sc->sc_smn, AMDTEMP_17H_CCD_TMP_BASE +
+		error = amdsmn_read(sc->sc_smn, sc->sc_temp_base +
 		    (i * sizeof(val)), &val);
 		if (error != 0)
 			continue;
@@ -846,6 +853,7 @@ amdtemp_probe_ccd_sensors17h(device_t dev, uint32_t model)
 static void
 amdtemp_probe_ccd_sensors19h(device_t dev, uint32_t model)
 {
+	struct amdtemp_softc *sc = device_get_softc(dev);
 	uint32_t maxreg;
 
 	switch (model) {
@@ -854,6 +862,11 @@ amdtemp_probe_ccd_sensors19h(device_t dev, uint32_t model)
 		maxreg = 8;
 		_Static_assert((int)NUM_CCDS >= 8, "");
 		break;
+	case 0x60 ... 0x6f: /* Zen4 Ryzen "Raphael" */
+		sc->sc_temp_base = AMDTEMP_ZEN4_CCD_TMP_BASE;
+		maxreg = 8;
+		_Static_assert((int)NUM_CCDS >= 8, "");
+		break;
 	default:
 		device_printf(dev,
 		    "Unrecognized Family 19h Model: %02xh\n", model);