/* $NetBSD: amdzentemp.c,v 1.7.2.2 2018/02/05 13:06:55 martin Exp $ */ /* $OpenBSD: kate.c,v 1.2 2008/03/27 04:52:03 cnst Exp $ */ /* * Copyright (c) 2008 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Christoph Egger. * * NetBSD port by Ian Clark * * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. */ /* * Copyright (c) 2008 Constantine A. Murenin * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include __KERNEL_RCSID(0, "$NetBSD: amdzentemp.c,v 1.7.2.2 2018/02/05 13:06:55 martin Exp $ "); #include #include #include #include #include #include #include #include #include #include #include #include #include "amdsmn.h" /* Address to query for temp on family 17h */ #define AMD_17H_CUR_TMP 0x59800 struct amdzentemp_softc { pci_chipset_tag_t sc_pc; pcitag_t sc_pcitag; struct sysmon_envsys *sc_sme; device_t sc_smn; envsys_data_t *sc_sensor; size_t sc_sensor_len; size_t sc_numsensors; }; static int amdzentemp_match(device_t, cfdata_t, void *); static void amdzentemp_attach(device_t, device_t, void *); static int amdzentemp_detach(device_t, int); static void amdzentemp_family17_init(struct amdzentemp_softc *); static void amdzentemp_family17_setup_sensors(struct amdzentemp_softc *, int); static void amdzentemp_family17_refresh(struct sysmon_envsys *, envsys_data_t *); CFATTACH_DECL_NEW(amdzentemp, sizeof(struct amdzentemp_softc), amdzentemp_match, amdzentemp_attach, amdzentemp_detach, NULL); static int amdzentemp_match(device_t parent, cfdata_t match, void *aux) { struct pci_attach_args *pa __diagused = aux; KASSERT(PCI_VENDOR(pa->pa_id) == PCI_VENDOR_AMD); cfdata_t parent_cfdata = device_cfdata(parent); /* Got AMD family 17h system management network */ return parent_cfdata->cf_name && memcmp(parent_cfdata->cf_name, "amdsmn", 6) == 0; } static void amdzentemp_attach(device_t parent, device_t self, void *aux) { struct amdzentemp_softc *sc = device_private(self); struct pci_attach_args *pa = aux; int error; size_t i; aprint_naive("\n"); aprint_normal(": AMD CPU Temperature Sensors (Family17h)"); sc->sc_pc = pa->pa_pc; sc->sc_pcitag = pa->pa_tag; sc->sc_smn = parent; amdzentemp_family17_init(sc); aprint_normal("\n"); sc->sc_sme = sysmon_envsys_create(); sc->sc_sensor_len = sizeof(envsys_data_t) * sc->sc_numsensors; sc->sc_sensor = kmem_zalloc(sc->sc_sensor_len, KM_SLEEP); amdzentemp_family17_setup_sensors(sc, device_unit(self)); /* * Set properties in sensors. */ for (i = 0; i < sc->sc_numsensors; i++) { if (sysmon_envsys_sensor_attach(sc->sc_sme, &sc->sc_sensor[i])) goto bad; } /* * Register the sysmon_envsys device. */ sc->sc_sme->sme_name = device_xname(self); sc->sc_sme->sme_cookie = sc; sc->sc_sme->sme_refresh = amdzentemp_family17_refresh; error = sysmon_envsys_register(sc->sc_sme); if (error) { aprint_error_dev(self, "unable to register with sysmon " "(error=%d)\n", error); goto bad; } (void)pmf_device_register(self, NULL, NULL); return; bad: if (sc->sc_sme != NULL) { sysmon_envsys_destroy(sc->sc_sme); sc->sc_sme = NULL; } kmem_free(sc->sc_sensor, sc->sc_sensor_len); sc->sc_sensor = NULL; } static int amdzentemp_detach(device_t self, int flags) { struct amdzentemp_softc *sc = device_private(self); pmf_device_deregister(self); if (sc->sc_sme != NULL) sysmon_envsys_unregister(sc->sc_sme); if (sc->sc_sensor != NULL) kmem_free(sc->sc_sensor, sc->sc_sensor_len); return 0; } static void amdzentemp_family17_init(struct amdzentemp_softc *sc) { sc->sc_numsensors = 1; } static void amdzentemp_family17_setup_sensors(struct amdzentemp_softc *sc, int dv_unit) { sc->sc_sensor[0].units = ENVSYS_STEMP; sc->sc_sensor[0].state = ENVSYS_SVALID; sc->sc_sensor[0].flags = ENVSYS_FHAS_ENTROPY; snprintf(sc->sc_sensor[0].desc, sizeof(sc->sc_sensor[0].desc), "cpu%u temperature", dv_unit); } static void amdzentemp_family17_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) { struct amdzentemp_softc *sc = sme->sme_cookie; uint32_t temp; int error; error = amdsmn_read(sc->sc_smn, AMD_17H_CUR_TMP, &temp); if (error) { edata->state = ENVSYS_SINVALID; return; } edata->state = ENVSYS_SVALID; /* From C to uK. */ edata->value_cur = ((temp >> 21) * 125000) + 273150000; } MODULE(MODULE_CLASS_DRIVER, amdzentemp, "sysmon_envsys,amdsmn"); #ifdef _MODULE #include "ioconf.c" #endif static int amdzentemp_modcmd(modcmd_t cmd, void *aux) { int error = 0; switch (cmd) { case MODULE_CMD_INIT: #ifdef _MODULE error = config_init_component(cfdriver_ioconf_amdzentemp, cfattach_ioconf_amdzentemp, cfdata_ioconf_amdzentemp); #endif return error; case MODULE_CMD_FINI: #ifdef _MODULE error = config_fini_component(cfdriver_ioconf_amdzentemp, cfattach_ioconf_amdzentemp, cfdata_ioconf_amdzentemp); #endif return error; default: return ENOTTY; } }