| 1 | /* $NetBSD: cpu_ucode.c,v 1.5 2015/01/07 07:05:48 ozaki-r Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 2012 The NetBSD Foundation, Inc. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * This code is derived from software contributed to The NetBSD Foundation |
| 7 | * by Christoph Egger. |
| 8 | * |
| 9 | * Redistribution and use in source and binary forms, with or without |
| 10 | * modification, are permitted provided that the following conditions |
| 11 | * are met: |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer in the |
| 16 | * documentation and/or other materials provided with the distribution. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 19 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 20 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 21 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 22 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 28 | * POSSIBILITY OF SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | #include <sys/cdefs.h> |
| 32 | __KERNEL_RCSID(0, "$NetBSD: cpu_ucode.c,v 1.5 2015/01/07 07:05:48 ozaki-r Exp $" ); |
| 33 | |
| 34 | #include "opt_cpu_ucode.h" |
| 35 | #include "opt_compat_netbsd.h" |
| 36 | |
| 37 | #include <sys/param.h> |
| 38 | #include <sys/cpuio.h> |
| 39 | #include <sys/cpu.h> |
| 40 | |
| 41 | #include <dev/firmload.h> |
| 42 | |
| 43 | #include <machine/cpuvar.h> |
| 44 | #include <machine/cputypes.h> |
| 45 | |
| 46 | #include <x86/cpu_ucode.h> |
| 47 | |
| 48 | static struct cpu_ucode_softc ucode_softc; |
| 49 | |
| 50 | int |
| 51 | cpu_ucode_get_version(struct cpu_ucode_version *data) |
| 52 | { |
| 53 | |
| 54 | switch (cpu_vendor) { |
| 55 | case CPUVENDOR_AMD: |
| 56 | return cpu_ucode_amd_get_version(data); |
| 57 | case CPUVENDOR_INTEL: |
| 58 | return cpu_ucode_intel_get_version(data); |
| 59 | default: |
| 60 | return EOPNOTSUPP; |
| 61 | } |
| 62 | |
| 63 | return 0; |
| 64 | } |
| 65 | |
| 66 | #ifdef COMPAT_60 |
| 67 | int |
| 68 | compat6_cpu_ucode_get_version(struct compat6_cpu_ucode *data) |
| 69 | { |
| 70 | |
| 71 | switch (cpu_vendor) { |
| 72 | case CPUVENDOR_AMD: |
| 73 | return compat6_cpu_ucode_amd_get_version(data); |
| 74 | default: |
| 75 | return EOPNOTSUPP; |
| 76 | } |
| 77 | |
| 78 | return 0; |
| 79 | } |
| 80 | #endif /* COMPAT60 */ |
| 81 | |
| 82 | int |
| 83 | cpu_ucode_md_open(firmware_handle_t *fwh, int loader_version, const char *fwname) |
| 84 | { |
| 85 | switch (cpu_vendor) { |
| 86 | case CPUVENDOR_AMD: |
| 87 | return cpu_ucode_amd_firmware_open(fwh, fwname); |
| 88 | case CPUVENDOR_INTEL: |
| 89 | return cpu_ucode_intel_firmware_open(fwh, fwname); |
| 90 | default: |
| 91 | return EOPNOTSUPP; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | int |
| 96 | cpu_ucode_apply(const struct cpu_ucode *data) |
| 97 | { |
| 98 | struct cpu_ucode_softc *sc = &ucode_softc; |
| 99 | int error; |
| 100 | |
| 101 | sc->loader_version = data->loader_version; |
| 102 | |
| 103 | error = cpu_ucode_load(sc, data->fwname); |
| 104 | if (error) |
| 105 | return error; |
| 106 | |
| 107 | switch (cpu_vendor) { |
| 108 | case CPUVENDOR_AMD: |
| 109 | error = cpu_ucode_amd_apply(sc, data->cpu_nr); |
| 110 | break; |
| 111 | case CPUVENDOR_INTEL: |
| 112 | error = cpu_ucode_intel_apply(sc, data->cpu_nr); |
| 113 | break; |
| 114 | default: |
| 115 | return EOPNOTSUPP; |
| 116 | } |
| 117 | |
| 118 | if (sc->sc_blob != NULL) |
| 119 | firmware_free(sc->sc_blob, sc->sc_blobsize); |
| 120 | sc->sc_blob = NULL; |
| 121 | sc->sc_blobsize = 0; |
| 122 | return error; |
| 123 | } |
| 124 | |
| 125 | #ifdef COMPAT_60 |
| 126 | int |
| 127 | compat6_cpu_ucode_apply(const struct compat6_cpu_ucode *data) |
| 128 | { |
| 129 | struct cpu_ucode_softc *sc = &ucode_softc; |
| 130 | int error; |
| 131 | |
| 132 | if (cpu_vendor != CPUVENDOR_AMD) |
| 133 | return EOPNOTSUPP; |
| 134 | |
| 135 | sc->loader_version = CPU_UCODE_LOADER_AMD; |
| 136 | error = cpu_ucode_load(sc, data->fwname); |
| 137 | if (error) |
| 138 | return error; |
| 139 | |
| 140 | error = cpu_ucode_amd_apply(sc, CPU_UCODE_ALL_CPUS); |
| 141 | |
| 142 | if (sc->sc_blob != NULL) |
| 143 | firmware_free(sc->sc_blob, sc->sc_blobsize); |
| 144 | sc->sc_blob = NULL; |
| 145 | sc->sc_blobsize = 0; |
| 146 | return error; |
| 147 | } |
| 148 | #endif /* COMPAT60 */ |
| 149 | |