1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2020 Ruslan Bukin <br@bsdpad.com> 5 * 6 * This software was developed by SRI International and the University of 7 * Cambridge Computer Laboratory (Department of Computer Science and 8 * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the 9 * DARPA SSITH research programme. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include "opt_acpi.h" 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #include <sys/types.h> 39 #include <sys/systm.h> 40 #include <sys/bus.h> 41 #include <sys/kernel.h> 42 #include <sys/malloc.h> 43 #include <sys/memdesc.h> 44 #include <sys/module.h> 45 #include <sys/rman.h> 46 47 #include <contrib/dev/acpica/include/acpi.h> 48 #include <dev/acpica/acpivar.h> 49 50 #include <arm64/coresight/coresight.h> 51 #include <arm64/coresight/coresight_tmc.h> 52 53 static int 54 tmc_acpi_probe(device_t dev) 55 { 56 static char *tmc_ids[] = { "ARMHC97C", NULL }; 57 int error; 58 59 error = ACPI_ID_PROBE(device_get_parent(dev), dev, tmc_ids, NULL); 60 if (error <= 0) 61 device_set_desc(dev, "ARM Coresight TMC"); 62 63 return (error); 64 } 65 66 static int 67 tmc_acpi_attach(device_t dev) 68 { 69 struct tmc_softc *sc; 70 71 sc = device_get_softc(dev); 72 sc->pdata = coresight_acpi_get_platform_data(dev); 73 74 return (tmc_attach(dev)); 75 } 76 77 static device_method_t tmc_acpi_methods[] = { 78 /* Device interface */ 79 DEVMETHOD(device_probe, tmc_acpi_probe), 80 DEVMETHOD(device_attach, tmc_acpi_attach), 81 82 /* End */ 83 DEVMETHOD_END 84 }; 85 86 DEFINE_CLASS_1(tmc, tmc_acpi_driver, tmc_acpi_methods, 87 sizeof(struct tmc_softc), tmc_driver); 88 89 static devclass_t tmc_acpi_devclass; 90 91 EARLY_DRIVER_MODULE(tmc, acpi, tmc_acpi_driver, tmc_acpi_devclass, 92 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE); 93