amdccp_acpi.c revision 1.6
1/* $NetBSD: amdccp_acpi.c,v 1.6 2022/12/18 15:50:32 reinoud Exp $ */ 2 3/* 4 * Copyright (c) 2018 Jonathan A. Kollasch 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 26 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__KERNEL_RCSID(0, "$NetBSD: amdccp_acpi.c,v 1.6 2022/12/18 15:50:32 reinoud Exp $"); 31 32#include <sys/param.h> 33#include <sys/bus.h> 34#include <sys/cpu.h> 35#include <sys/device.h> 36 37#include <dev/acpi/acpireg.h> 38#include <dev/acpi/acpivar.h> 39#include <dev/acpi/acpi_intr.h> 40 41#include <dev/ic/amdccpvar.h> 42 43static int amdccp_acpi_match(device_t, cfdata_t, void *); 44static void amdccp_acpi_attach(device_t, device_t, void *); 45 46CFATTACH_DECL_NEW(amdccp_acpi, sizeof(struct amdccp_softc), 47 amdccp_acpi_match, amdccp_acpi_attach, NULL, NULL); 48 49static const struct device_compatible_entry compat_data[] = { 50 { .compat = "AMDI0C00" }, 51 DEVICE_COMPAT_EOL 52}; 53 54static int 55amdccp_acpi_match(device_t parent, cfdata_t cf, void *aux) 56{ 57 struct acpi_attach_args *aa = aux; 58 59 return acpi_compatible_match(aa, compat_data); 60} 61 62static void 63amdccp_acpi_attach(device_t parent, device_t self, void *aux) 64{ 65 struct amdccp_softc * const sc = device_private(self); 66 struct acpi_attach_args *aa = aux; 67 struct acpi_resources res; 68 struct acpi_mem *mem; 69 ACPI_STATUS rv; 70#if notyet 71 void *ih; 72#endif 73 74 sc->sc_dev = self; 75 76 rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS", 77 &res, &acpi_resource_parse_ops_default); 78 if (ACPI_FAILURE(rv)) 79 return; 80 81 mem = acpi_res_mem(&res, 0); 82 if (mem == NULL) { 83 aprint_error_dev(self, "couldn't find mem resource\n"); 84 goto done; 85 } 86 87 sc->sc_bst = aa->aa_memt; 88 if (bus_space_map(aa->aa_memt, mem->ar_base, mem->ar_length, 0, 89 &sc->sc_bsh) != 0) { 90 aprint_error_dev(self, "couldn't map registers\n"); 91 goto done; 92 } 93 94#if notyet 95 ih = acpi_intr_establish(self, 96 (uint64_t)(uintptr_t)aa->aa_node->ad_handle, 97 IPL_VM, true, amdccp_intr, sc, device_xname(self)); 98 if (ih == NULL) { 99 aprint_error_dev(self, "couldn't install interrupt handler\n"); 100 return; 101 } 102 103#endif 104 105 amdccp_common_attach(sc); 106 pmf_device_register(self, NULL, NULL); 107 108done: 109 acpi_resource_cleanup(&res); 110} 111