/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2008, 2009 Rui Paulo * Copyright (c) 2009 Norikatsu Shigemura * Copyright (c) 2009-2012 Jung-uk Kim * All rights reserved. * Copyright (c) 2017-2020 Conrad Meyer . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Driver for the AMD CPU on-die thermal sensors. * Initially based on the k8temp Linux driver. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include typedef enum { CORE0_SENSOR0, CORE0_SENSOR1, CORE1_SENSOR0, CORE1_SENSOR1, CORE0, CORE1, CCD1, CCD_BASE = CCD1, CCD2, CCD3, CCD4, CCD5, CCD6, CCD7, CCD8, CCD_MAX = CCD8, NUM_CCDS = CCD_MAX - CCD_BASE + 1, } amdsensor_t; struct amdtemp_softc { int sc_ncores; int sc_ntemps; int sc_flags; #define AMDTEMP_FLAG_CS_SWAP 0x01 /* ThermSenseCoreSel is inverted. */ #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; device_t sc_smn; struct mtx sc_lock; }; /* * N.B. The numbers in macro names below are significant and represent CPU * family and model numbers. Do not make up fictitious family or model numbers * when adding support for new devices. */ #define VENDORID_AMD 0x1022 #define DEVICEID_AMD_MISC0F 0x1103 #define DEVICEID_AMD_MISC10 0x1203 #define DEVICEID_AMD_MISC11 0x1303 #define DEVICEID_AMD_MISC14 0x1703 #define DEVICEID_AMD_MISC15 0x1603 #define DEVICEID_AMD_MISC15_M10H 0x1403 #define DEVICEID_AMD_MISC15_M30H 0x141d #define DEVICEID_AMD_MISC15_M60H_ROOT 0x1576 #define DEVICEID_AMD_MISC16 0x1533 #define DEVICEID_AMD_MISC16_M30H 0x1583 #define DEVICEID_AMD_HOSTB17H_ROOT 0x1450 #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; uint16_t amdtemp_deviceid; /* * 0xFC register is only valid on the D18F3 PCI device; SMN temp * drivers do not attach to that device. */ bool amdtemp_has_cpuid; } amdtemp_products[] = { { VENDORID_AMD, DEVICEID_AMD_MISC0F, true }, { VENDORID_AMD, DEVICEID_AMD_MISC10, true }, { VENDORID_AMD, DEVICEID_AMD_MISC11, true }, { VENDORID_AMD, DEVICEID_AMD_MISC14, true }, { VENDORID_AMD, DEVICEID_AMD_MISC15, true }, { VENDORID_AMD, DEVICEID_AMD_MISC15_M10H, true }, { VENDORID_AMD, DEVICEID_AMD_MISC15_M30H, true }, { VENDORID_AMD, DEVICEID_AMD_MISC15_M60H_ROOT, false }, { VENDORID_AMD, DEVICEID_AMD_MISC16, true }, { VENDORID_AMD, DEVICEID_AMD_MISC16_M30H, true }, { VENDORID_AMD, DEVICEID_AMD_HOSTB17H_ROOT, false }, { 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 }, }; /* * Reported Temperature Control Register, family 0Fh-15h (some models), 16h. */ #define AMDTEMP_REPTMP_CTRL 0xa4 #define AMDTEMP_REPTMP10H_CURTMP_MASK 0x7ff #define AMDTEMP_REPTMP10H_CURTMP_SHIFT 21 #define AMDTEMP_REPTMP10H_TJSEL_MASK 0x3 #define AMDTEMP_REPTMP10H_TJSEL_SHIFT 16 /* * Reported Temperature, Family 15h, M60+ * * Same register bit definitions as other Family 15h CPUs, but access is * indirect via SMN, like Family 17h. */ #define AMDTEMP_15H_M60H_REPTMP_CTRL 0xd8200ca4 /* * Reported Temperature, Family 17h * * According to AMD OSRR for 17H, section 4.2.1, bits 31-21 of this register * provide the current temp. bit 19, when clear, means the temp is reported in * a range 0.."225C" (probable typo for 255C), and when set changes the range * to -49..206C. */ #define AMDTEMP_17H_CUR_TMP 0x59800 #define AMDTEMP_17H_CUR_TMP_RANGE_SEL (1u << 19) /* * Bits 16-17, when set, mean that CUR_TMP is read-write. When it is, the * 49 degree offset should apply as well. This was revealed in a Linux * patch from an AMD employee. */ #define AMDTEMP_17H_CUR_TMP_TJ_SEL ((1u << 17) | (1u << 16)) /* * The following register set was discovered experimentally by Ondrej Čerman * and collaborators, but is not (yet) documented in a PPR/OSRR (other than * the M70H PPR SMN memory map showing [0x59800, +0x314] as allocated to * SMU::THM). It seems plausible and the Linux sensor folks have adopted it. */ #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). */ #define AMDTEMP_CURTMP_RANGE_ADJUST 490 /* * Thermaltrip Status Register (Family 0Fh only) */ #define AMDTEMP_THERMTP_STAT 0xe4 #define AMDTEMP_TTSR_SELCORE 0x04 #define AMDTEMP_TTSR_SELSENSOR 0x40 /* * DRAM Configuration High Register */ #define AMDTEMP_DRAM_CONF_HIGH 0x94 /* Function 2 */ #define AMDTEMP_DRAM_MODE_DDR3 0x0100 /* * CPU Family/Model Register */ #define AMDTEMP_CPUID 0xfc /* * Device methods. */ static void amdtemp_identify(driver_t *driver, device_t parent); static int amdtemp_probe(device_t dev); static int amdtemp_attach(device_t dev); static void amdtemp_intrhook(void *arg); static int amdtemp_detach(device_t dev); static int32_t amdtemp_gettemp0f(device_t dev, amdsensor_t sensor); static int32_t amdtemp_gettemp(device_t dev, amdsensor_t sensor); static int32_t amdtemp_gettemp15hm60h(device_t dev, amdsensor_t sensor); static int32_t amdtemp_gettemp17h(device_t dev, amdsensor_t sensor); static void amdtemp_probe_ccd_sensors17h(device_t dev, uint32_t model); static void amdtemp_probe_ccd_sensors19h(device_t dev, uint32_t model); static int amdtemp_sysctl(SYSCTL_HANDLER_ARGS); static device_method_t amdtemp_methods[] = { /* Device interface */ DEVMETHOD(device_identify, amdtemp_identify), DEVMETHOD(device_probe, amdtemp_probe), DEVMETHOD(device_attach, amdtemp_attach), DEVMETHOD(device_detach, amdtemp_detach), DEVMETHOD_END }; static driver_t amdtemp_driver = { "amdtemp", amdtemp_methods, sizeof(struct amdtemp_softc), }; DRIVER_MODULE(amdtemp, hostb, amdtemp_driver, NULL, NULL); MODULE_VERSION(amdtemp, 1); MODULE_DEPEND(amdtemp, amdsmn, 1, 1, 1); MODULE_PNP_INFO("U16:vendor;U16:device", pci, amdtemp, amdtemp_products, nitems(amdtemp_products)); static bool amdtemp_match(device_t dev, const struct amdtemp_product **product_out) { int i; uint16_t vendor, devid; vendor = pci_get_vendor(dev); devid = pci_get_device(dev); for (i = 0; i < nitems(amdtemp_products); i++) { if (vendor == amdtemp_products[i].amdtemp_vendorid && devid == amdtemp_products[i].amdtemp_deviceid) { if (product_out != NULL) *product_out = &amdtemp_products[i]; return (true); } } return (false); } static void amdtemp_identify(driver_t *driver, device_t parent) { device_t child; /* Make sure we're not being doubly invoked. */ if (device_find_child(parent, "amdtemp", -1) != NULL) return; if (amdtemp_match(parent, NULL)) { child = device_add_child(parent, "amdtemp", -1); if (child == NULL) device_printf(parent, "add amdtemp child failed\n"); } } static int amdtemp_probe(device_t dev) { uint32_t family, model; if (resource_disabled("amdtemp", 0)) return (ENXIO); if (!amdtemp_match(device_get_parent(dev), NULL)) return (ENXIO); family = CPUID_TO_FAMILY(cpu_id); model = CPUID_TO_MODEL(cpu_id); switch (family) { case 0x0f: if ((model == 0x04 && (cpu_id & CPUID_STEPPING) == 0) || (model == 0x05 && (cpu_id & CPUID_STEPPING) <= 1)) return (ENXIO); break; case 0x10: case 0x11: case 0x12: case 0x14: case 0x15: case 0x16: case 0x17: case 0x19: break; default: return (ENXIO); } device_set_desc(dev, "AMD CPU On-Die Thermal Sensors"); return (BUS_PROBE_GENERIC); } static int amdtemp_attach(device_t dev) { char tn[32]; u_int regs[4]; const struct amdtemp_product *product; struct amdtemp_softc *sc; struct sysctl_ctx_list *sysctlctx; struct sysctl_oid *sysctlnode; uint32_t cpuid, family, model; u_int bid; int erratum319, unit; bool needsmn; sc = device_get_softc(dev); erratum319 = 0; needsmn = false; if (!amdtemp_match(device_get_parent(dev), &product)) return (ENXIO); cpuid = cpu_id; family = CPUID_TO_FAMILY(cpuid); model = CPUID_TO_MODEL(cpuid); /* * This checks for the byzantine condition of running a heterogenous * revision multi-socket system where the attach thread is potentially * probing a remote socket's PCI device. * * Currently, such scenarios are unsupported on models using the SMN * (because on those models, amdtemp(4) attaches to a different PCI * device than the one that contains AMDTEMP_CPUID). * * The ancient 0x0F family of devices only supports this register from * models 40h+. */ if (product->amdtemp_has_cpuid && (family > 0x0f || (family == 0x0f && model >= 0x40))) { cpuid = pci_read_config(device_get_parent(dev), AMDTEMP_CPUID, 4); family = CPUID_TO_FAMILY(cpuid); model = CPUID_TO_MODEL(cpuid); } switch (family) { case 0x0f: /* * Thermaltrip Status Register * * - ThermSenseCoreSel * * Revision F & G: 0 - Core1, 1 - Core0 * Other: 0 - Core0, 1 - Core1 * * - CurTmp * * Revision G: bits 23-14 * Other: bits 23-16 * * XXX According to the BKDG, CurTmp, ThermSenseSel and * ThermSenseCoreSel bits were introduced in Revision F * but CurTmp seems working fine as early as Revision C. * However, it is not clear whether ThermSenseSel and/or * ThermSenseCoreSel work in undocumented cases as well. * In fact, the Linux driver suggests it may not work but * we just assume it does until we find otherwise. * * XXX According to Linux, CurTmp starts at -28C on * Socket AM2 Revision G processors, which is not * documented anywhere. */ if (model >= 0x40) sc->sc_flags |= AMDTEMP_FLAG_CS_SWAP; if (model >= 0x60 && model != 0xc1) { do_cpuid(0x80000001, regs); bid = (regs[1] >> 9) & 0x1f; switch (model) { case 0x68: /* Socket S1g1 */ case 0x6c: case 0x7c: break; case 0x6b: /* Socket AM2 and ASB1 (2 cores) */ if (bid != 0x0b && bid != 0x0c) sc->sc_flags |= AMDTEMP_FLAG_ALT_OFFSET; break; case 0x6f: /* Socket AM2 and ASB1 (1 core) */ case 0x7f: if (bid != 0x07 && bid != 0x09 && bid != 0x0c) sc->sc_flags |= AMDTEMP_FLAG_ALT_OFFSET; break; default: sc->sc_flags |= AMDTEMP_FLAG_ALT_OFFSET; } sc->sc_flags |= AMDTEMP_FLAG_CT_10BIT; } /* * There are two sensors per core. */ sc->sc_ntemps = 2; sc->sc_gettemp = amdtemp_gettemp0f; break; case 0x10: /* * Erratum 319 Inaccurate Temperature Measurement * * http://support.amd.com/us/Processor_TechDocs/41322.pdf */ do_cpuid(0x80000001, regs); switch ((regs[1] >> 28) & 0xf) { case 0: /* Socket F */ erratum319 = 1; break; case 1: /* Socket AM2+ or AM3 */ if ((pci_cfgregread(pci_get_domain(dev), pci_get_bus(dev), pci_get_slot(dev), 2, AMDTEMP_DRAM_CONF_HIGH, 2) & AMDTEMP_DRAM_MODE_DDR3) != 0 || model > 0x04 || (model == 0x04 && (cpuid & CPUID_STEPPING) >= 3)) break; /* XXX 00100F42h (RB-C2) exists in both formats. */ erratum319 = 1; break; } /* FALLTHROUGH */ case 0x11: case 0x12: case 0x14: case 0x15: case 0x16: sc->sc_ntemps = 1; /* * Some later (60h+) models of family 15h use a similar SMN * network as family 17h. (However, the register index differs * from 17h and the decoding matches other 10h-15h models, * which differ from 17h.) */ if (family == 0x15 && model >= 0x60) { sc->sc_gettemp = amdtemp_gettemp15hm60h; needsmn = true; } else sc->sc_gettemp = amdtemp_gettemp; break; case 0x17: case 0x19: sc->sc_ntemps = 1; sc->sc_gettemp = amdtemp_gettemp17h; needsmn = true; break; default: device_printf(dev, "Bogus family 0x%x\n", family); return (ENXIO); } if (needsmn) { sc->sc_smn = device_find_child( device_get_parent(dev), "amdsmn", -1); if (sc->sc_smn == NULL) { if (bootverbose) device_printf(dev, "No SMN device found\n"); return (ENXIO); } } /* Find number of cores per package. */ sc->sc_ncores = (amd_feature2 & AMDID2_CMP) != 0 ? (cpu_procinfo2 & AMDID_CMP_CORES) + 1 : 1; if (sc->sc_ncores > MAXCPU) return (ENXIO); mtx_init(&sc->sc_lock, "amdtemp", NULL, MTX_DEF); if (erratum319) device_printf(dev, "Erratum 319: temperature measurement may be inaccurate\n"); if (bootverbose) device_printf(dev, "Found %d cores and %d sensors.\n", sc->sc_ncores, sc->sc_ntemps > 1 ? sc->sc_ntemps * sc->sc_ncores : 1); /* * dev.amdtemp.N tree. */ unit = device_get_unit(dev); snprintf(tn, sizeof(tn), "dev.amdtemp.%d.sensor_offset", unit); TUNABLE_INT_FETCH(tn, &sc->sc_offset); sysctlctx = device_get_sysctl_ctx(dev); SYSCTL_ADD_INT(sysctlctx, SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensor_offset", CTLFLAG_RW, &sc->sc_offset, 0, "Temperature sensor offset"); sysctlnode = SYSCTL_ADD_NODE(sysctlctx, SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "core0", CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Core 0"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sensor0", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 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) amdtemp_probe_ccd_sensors19h(dev, model); else if (sc->sc_ntemps > 1) { SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sensor1", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, CORE0_SENSOR1, amdtemp_sysctl, "IK", "Core 0 / Sensor 1 temperature"); if (sc->sc_ncores > 1) { sysctlnode = SYSCTL_ADD_NODE(sysctlctx, SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "core1", CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Core 1"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sensor0", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, CORE1_SENSOR0, amdtemp_sysctl, "IK", "Core 1 / Sensor 0 temperature"); SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sensor1", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, CORE1_SENSOR1, amdtemp_sysctl, "IK", "Core 1 / Sensor 1 temperature"); } } /* * Try to create dev.cpu sysctl entries and setup intrhook function. * This is needed because the cpu driver may be loaded late on boot, * after us. */ amdtemp_intrhook(dev); sc->sc_ich.ich_func = amdtemp_intrhook; sc->sc_ich.ich_arg = dev; if (config_intrhook_establish(&sc->sc_ich) != 0) { device_printf(dev, "config_intrhook_establish failed!\n"); return (ENXIO); } return (0); } void amdtemp_intrhook(void *arg) { struct amdtemp_softc *sc; struct sysctl_ctx_list *sysctlctx; device_t dev = (device_t)arg; device_t acpi, cpu, nexus; amdsensor_t sensor; int i; sc = device_get_softc(dev); /* * dev.cpu.N.temperature. */ nexus = device_find_child(root_bus, "nexus", 0); acpi = device_find_child(nexus, "acpi", 0); for (i = 0; i < sc->sc_ncores; i++) { if (sc->sc_sysctl_cpu[i] != NULL) continue; cpu = device_find_child(acpi, "cpu", device_get_unit(dev) * sc->sc_ncores + i); if (cpu != NULL) { sysctlctx = device_get_sysctl_ctx(cpu); sensor = sc->sc_ntemps > 1 ? (i == 0 ? CORE0 : CORE1) : CORE0_SENSOR0; sc->sc_sysctl_cpu[i] = SYSCTL_ADD_PROC(sysctlctx, SYSCTL_CHILDREN(device_get_sysctl_tree(cpu)), OID_AUTO, "temperature", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, sensor, amdtemp_sysctl, "IK", "Current temparature"); } } if (sc->sc_ich.ich_arg != NULL) config_intrhook_disestablish(&sc->sc_ich); } int amdtemp_detach(device_t dev) { struct amdtemp_softc *sc = device_get_softc(dev); int i; for (i = 0; i < sc->sc_ncores; i++) if (sc->sc_sysctl_cpu[i] != NULL) sysctl_remove_oid(sc->sc_sysctl_cpu[i], 1, 0); /* NewBus removes the dev.amdtemp.N tree by itself. */ mtx_destroy(&sc->sc_lock); return (0); } static int amdtemp_sysctl(SYSCTL_HANDLER_ARGS) { device_t dev = (device_t)arg1; struct amdtemp_softc *sc = device_get_softc(dev); amdsensor_t sensor = (amdsensor_t)arg2; int32_t auxtemp[2], temp; int error; switch (sensor) { case CORE0: auxtemp[0] = sc->sc_gettemp(dev, CORE0_SENSOR0); auxtemp[1] = sc->sc_gettemp(dev, CORE0_SENSOR1); temp = imax(auxtemp[0], auxtemp[1]); break; case CORE1: auxtemp[0] = sc->sc_gettemp(dev, CORE1_SENSOR0); auxtemp[1] = sc->sc_gettemp(dev, CORE1_SENSOR1); temp = imax(auxtemp[0], auxtemp[1]); break; default: temp = sc->sc_gettemp(dev, sensor); break; } error = sysctl_handle_int(oidp, &temp, 0, req); return (error); } #define AMDTEMP_ZERO_C_TO_K 2731 static int32_t amdtemp_gettemp0f(device_t dev, amdsensor_t sensor) { struct amdtemp_softc *sc = device_get_softc(dev); uint32_t mask, offset, temp; mtx_lock(&sc->sc_lock); /* Set Sensor/Core selector. */ temp = pci_read_config(dev, AMDTEMP_THERMTP_STAT, 1); temp &= ~(AMDTEMP_TTSR_SELCORE | AMDTEMP_TTSR_SELSENSOR); switch (sensor) { case CORE0_SENSOR1: temp |= AMDTEMP_TTSR_SELSENSOR; /* FALLTHROUGH */ case CORE0_SENSOR0: case CORE0: if ((sc->sc_flags & AMDTEMP_FLAG_CS_SWAP) != 0) temp |= AMDTEMP_TTSR_SELCORE; break; case CORE1_SENSOR1: temp |= AMDTEMP_TTSR_SELSENSOR; /* FALLTHROUGH */ case CORE1_SENSOR0: case CORE1: if ((sc->sc_flags & AMDTEMP_FLAG_CS_SWAP) == 0) temp |= AMDTEMP_TTSR_SELCORE; break; default: __assert_unreachable(); } pci_write_config(dev, AMDTEMP_THERMTP_STAT, temp, 1); mask = (sc->sc_flags & AMDTEMP_FLAG_CT_10BIT) != 0 ? 0x3ff : 0x3fc; offset = (sc->sc_flags & AMDTEMP_FLAG_ALT_OFFSET) != 0 ? 28 : 49; temp = pci_read_config(dev, AMDTEMP_THERMTP_STAT, 4); temp = ((temp >> 14) & mask) * 5 / 2; temp += AMDTEMP_ZERO_C_TO_K + (sc->sc_offset - offset) * 10; mtx_unlock(&sc->sc_lock); return (temp); } static uint32_t amdtemp_decode_fam10h_to_17h(int32_t sc_offset, uint32_t val, bool minus49) { uint32_t temp; /* Convert raw register subfield units (0.125C) to units of 0.1C. */ temp = (val & AMDTEMP_REPTMP10H_CURTMP_MASK) * 5 / 4; if (minus49) temp -= AMDTEMP_CURTMP_RANGE_ADJUST; temp += AMDTEMP_ZERO_C_TO_K + sc_offset * 10; return (temp); } static uint32_t amdtemp_decode_fam10h_to_16h(int32_t sc_offset, uint32_t val) { bool minus49; /* * On Family 15h and higher, if CurTmpTjSel is 11b, the range is * adjusted down by 49.0 degrees Celsius. (This adjustment is not * documented in BKDGs prior to family 15h model 00h.) */ minus49 = (CPUID_TO_FAMILY(cpu_id) >= 0x15 && ((val >> AMDTEMP_REPTMP10H_TJSEL_SHIFT) & AMDTEMP_REPTMP10H_TJSEL_MASK) == 0x3); return (amdtemp_decode_fam10h_to_17h(sc_offset, val >> AMDTEMP_REPTMP10H_CURTMP_SHIFT, minus49)); } static uint32_t amdtemp_decode_fam17h_tctl(int32_t sc_offset, uint32_t val) { bool minus49; minus49 = ((val & AMDTEMP_17H_CUR_TMP_RANGE_SEL) != 0) || ((val & AMDTEMP_17H_CUR_TMP_TJ_SEL) == AMDTEMP_17H_CUR_TMP_TJ_SEL); return (amdtemp_decode_fam10h_to_17h(sc_offset, val >> AMDTEMP_REPTMP10H_CURTMP_SHIFT, minus49)); } static int32_t amdtemp_gettemp(device_t dev, amdsensor_t sensor) { struct amdtemp_softc *sc = device_get_softc(dev); uint32_t temp; temp = pci_read_config(dev, AMDTEMP_REPTMP_CTRL, 4); return (amdtemp_decode_fam10h_to_16h(sc->sc_offset, temp)); } static int32_t amdtemp_gettemp15hm60h(device_t dev, amdsensor_t sensor) { struct amdtemp_softc *sc = device_get_softc(dev); uint32_t val; int error __diagused; error = amdsmn_read(sc->sc_smn, AMDTEMP_15H_M60H_REPTMP_CTRL, &val); KASSERT(error == 0, ("amdsmn_read")); return (amdtemp_decode_fam10h_to_16h(sc->sc_offset, val)); } static int32_t amdtemp_gettemp17h(device_t dev, amdsensor_t sensor) { struct amdtemp_softc *sc = device_get_softc(dev); uint32_t val; int error __diagused; switch (sensor) { case CORE0_SENSOR0: /* Tctl */ error = amdsmn_read(sc->sc_smn, AMDTEMP_17H_CUR_TMP, &val); KASSERT(error == 0, ("amdsmn_read")); return (amdtemp_decode_fam17h_tctl(sc->sc_offset, val)); case CCD_BASE ... CCD_MAX: /* Tccd */ 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, ("sensor %d: not valid", (int)sensor)); return (amdtemp_decode_fam10h_to_17h(sc->sc_offset, val, true)); default: __assert_unreachable(); } } static void amdtemp_probe_ccd_sensors(device_t dev, uint32_t maxreg) { char sensor_name[16], sensor_descr[32]; struct amdtemp_softc *sc; uint32_t i, val; int error; sc = device_get_softc(dev); for (i = 0; i < maxreg; i++) { error = amdsmn_read(sc->sc_smn, sc->sc_temp_base + (i * sizeof(val)), &val); if (error != 0) continue; if ((val & AMDTEMP_17H_CCD_TMP_VALID) == 0) continue; snprintf(sensor_name, sizeof(sensor_name), "ccd%u", i); snprintf(sensor_descr, sizeof(sensor_descr), "CCD %u temperature (Tccd%u)", i, i); SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, sensor_name, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, CCD_BASE + i, amdtemp_sysctl, "IK", sensor_descr); } } static void amdtemp_probe_ccd_sensors17h(device_t dev, uint32_t model) { uint32_t maxreg; switch (model) { case 0x00 ... 0x2f: /* Zen1, Zen+ */ maxreg = 4; break; case 0x30 ... 0x3f: /* Zen2 TR (Castle Peak)/EPYC (Rome) */ case 0x60 ... 0x7f: /* Zen2 Ryzen (Renoir APU, Matisse) */ case 0x90 ... 0x9f: /* Zen2 Ryzen (Van Gogh APU) */ maxreg = 8; _Static_assert((int)NUM_CCDS >= 8, ""); break; default: device_printf(dev, "Unrecognized Family 17h Model: %02xh\n", model); return; } amdtemp_probe_ccd_sensors(dev, maxreg); } 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) { case 0x00 ... 0x0f: /* Zen3 EPYC "Milan" */ case 0x20 ... 0x2f: /* Zen3 Ryzen "Vermeer" */ 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); return; } amdtemp_probe_ccd_sensors(dev, maxreg); }