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 | |