blob: 63123d902103e2ca88f0de3e00319d6f25021b71 [file] [log] [blame]
Peter Oruba80cc9f12008-07-28 18:44:22 +02001/*
2 * AMD CPU Microcode Update Driver for Linux
3 * Copyright (C) 2008 Advanced Micro Devices Inc.
4 *
5 * Author: Peter Oruba <peter.oruba@amd.com>
6 *
7 * Based on work by:
8 * Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
9 *
10 * This driver allows to upgrade microcode on AMD
11 * family 0x10 and 0x11 processors.
12 *
Andreas Herrmann2a3282a72008-12-16 19:08:53 +010013 * Licensed under the terms of the GNU General Public
Peter Oruba80cc9f12008-07-28 18:44:22 +020014 * License version 2. See file COPYING for details.
Ingo Molnar4bae1962009-03-11 11:19:46 +010015 */
Ingo Molnar4bae1962009-03-11 11:19:46 +010016#include <linux/firmware.h>
Peter Oruba80cc9f12008-07-28 18:44:22 +020017#include <linux/pci_ids.h>
Andreas Herrmannbe957762008-12-16 19:11:23 +010018#include <linux/uaccess.h>
Ingo Molnar4bae1962009-03-11 11:19:46 +010019#include <linux/vmalloc.h>
20#include <linux/kernel.h>
21#include <linux/module.h>
Ingo Molnar4bae1962009-03-11 11:19:46 +010022#include <linux/pci.h>
Peter Oruba80cc9f12008-07-28 18:44:22 +020023
Peter Oruba80cc9f12008-07-28 18:44:22 +020024#include <asm/microcode.h>
Ingo Molnar4bae1962009-03-11 11:19:46 +010025#include <asm/processor.h>
26#include <asm/msr.h>
Peter Oruba80cc9f12008-07-28 18:44:22 +020027
28MODULE_DESCRIPTION("AMD Microcode Update Driver");
Peter Oruba3c522042008-10-17 15:30:38 +020029MODULE_AUTHOR("Peter Oruba");
Ingo Molnar5d7b6052008-07-29 10:07:36 +020030MODULE_LICENSE("GPL v2");
Peter Oruba80cc9f12008-07-28 18:44:22 +020031
32#define UCODE_MAGIC 0x00414d44
33#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000
34#define UCODE_UCODE_TYPE 0x00000001
35
Andreas Herrmannd1c84f72009-11-10 12:07:23 +010036const struct firmware *firmware;
Andreas Herrmann8cc23612009-11-17 08:06:38 +010037static int supported_cpu;
Andreas Herrmannd1c84f72009-11-10 12:07:23 +010038
Dmitry Adamushko18dbc912008-09-23 12:08:44 +020039struct equiv_cpu_entry {
Andreas Herrmann5549b942008-12-16 19:21:30 +010040 u32 installed_cpu;
41 u32 fixed_errata_mask;
42 u32 fixed_errata_compare;
43 u16 equiv_cpu;
44 u16 res;
45} __attribute__((packed));
Dmitry Adamushko18dbc912008-09-23 12:08:44 +020046
47struct microcode_header_amd {
Andreas Herrmann5549b942008-12-16 19:21:30 +010048 u32 data_code;
49 u32 patch_id;
50 u16 mc_patch_data_id;
51 u8 mc_patch_data_len;
52 u8 init_flag;
53 u32 mc_patch_data_checksum;
54 u32 nb_dev_id;
55 u32 sb_dev_id;
56 u16 processor_rev_id;
57 u8 nb_rev_id;
58 u8 sb_rev_id;
59 u8 bios_api_rev;
60 u8 reserved1[3];
61 u32 match_reg[8];
62} __attribute__((packed));
Dmitry Adamushko18dbc912008-09-23 12:08:44 +020063
64struct microcode_amd {
Ingo Molnar4bae1962009-03-11 11:19:46 +010065 struct microcode_header_amd hdr;
66 unsigned int mpb[0];
Dmitry Adamushko18dbc912008-09-23 12:08:44 +020067};
68
Andreas Herrmann6cc9b6d2008-12-16 19:17:45 +010069#define UCODE_MAX_SIZE 2048
70#define UCODE_CONTAINER_SECTION_HDR 8
71#define UCODE_CONTAINER_HEADER_SIZE 12
Peter Oruba80cc9f12008-07-28 18:44:22 +020072
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +020073static struct equiv_cpu_entry *equiv_cpu_table;
Peter Oruba80cc9f12008-07-28 18:44:22 +020074
Dmitry Adamushkod45de402008-08-20 00:22:26 +020075static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig)
Peter Oruba80cc9f12008-07-28 18:44:22 +020076{
Andreas Herrmann29d08872008-12-16 19:16:34 +010077 u32 dummy;
Peter Oruba80cc9f12008-07-28 18:44:22 +020078
Andreas Herrmann8cc23612009-11-17 08:06:38 +010079 if (!supported_cpu)
Dmitry Adamushkod45de402008-08-20 00:22:26 +020080 return -1;
Andreas Herrmann8cc23612009-11-17 08:06:38 +010081
82 memset(csig, 0, sizeof(*csig));
Andreas Herrmann29d08872008-12-16 19:16:34 +010083 rdmsr(MSR_AMD64_PATCH_LEVEL, csig->rev, dummy);
Andreas Herrmann1a743572009-11-10 12:09:20 +010084 pr_info("microcode: CPU%d: patch_level=0x%x\n", cpu, csig->rev);
Dmitry Adamushkod45de402008-08-20 00:22:26 +020085 return 0;
Peter Oruba80cc9f12008-07-28 18:44:22 +020086}
87
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +020088static int get_matching_microcode(int cpu, void *mc, int rev)
Peter Oruba80cc9f12008-07-28 18:44:22 +020089{
Peter Oruba80cc9f12008-07-28 18:44:22 +020090 struct microcode_header_amd *mc_header = mc;
Peter Oruba80cc9f12008-07-28 18:44:22 +020091 unsigned int current_cpu_id;
Andreas Herrmann5549b942008-12-16 19:21:30 +010092 u16 equiv_cpu_id = 0;
Peter Oruba80cc9f12008-07-28 18:44:22 +020093 unsigned int i = 0;
94
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +020095 BUG_ON(equiv_cpu_table == NULL);
Peter Oruba80cc9f12008-07-28 18:44:22 +020096 current_cpu_id = cpuid_eax(0x00000001);
97
98 while (equiv_cpu_table[i].installed_cpu != 0) {
99 if (current_cpu_id == equiv_cpu_table[i].installed_cpu) {
Andreas Herrmann5549b942008-12-16 19:21:30 +0100100 equiv_cpu_id = equiv_cpu_table[i].equiv_cpu;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200101 break;
102 }
103 i++;
104 }
105
Andreas Herrmann14c56942009-11-10 12:08:25 +0100106 if (!equiv_cpu_id)
Peter Oruba80cc9f12008-07-28 18:44:22 +0200107 return 0;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200108
Andreas Herrmann6e18da72009-10-29 14:47:42 +0100109 if (mc_header->processor_rev_id != equiv_cpu_id)
Peter Oruba80cc9f12008-07-28 18:44:22 +0200110 return 0;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200111
Andreas Herrmann98415302008-12-16 19:20:21 +0100112 /* ucode might be chipset specific -- currently we don't support this */
113 if (mc_header->nb_dev_id || mc_header->sb_dev_id) {
Andreas Herrmann1a743572009-11-10 12:09:20 +0100114 pr_err(KERN_ERR "microcode: CPU%d: loading of chipset "
Andreas Herrmann98415302008-12-16 19:20:21 +0100115 "specific code not yet supported\n", cpu);
116 return 0;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200117 }
118
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200119 if (mc_header->patch_id <= rev)
Peter Oruba80cc9f12008-07-28 18:44:22 +0200120 return 0;
121
Peter Oruba80cc9f12008-07-28 18:44:22 +0200122 return 1;
123}
124
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200125static int apply_microcode_amd(int cpu)
Peter Oruba80cc9f12008-07-28 18:44:22 +0200126{
Andreas Herrmann29d08872008-12-16 19:16:34 +0100127 u32 rev, dummy;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200128 int cpu_num = raw_smp_processor_id();
129 struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
Dmitry Adamushko18dbc912008-09-23 12:08:44 +0200130 struct microcode_amd *mc_amd = uci->mc;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200131
132 /* We should bind the task to the CPU */
133 BUG_ON(cpu_num != cpu);
134
Dmitry Adamushko18dbc912008-09-23 12:08:44 +0200135 if (mc_amd == NULL)
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200136 return 0;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200137
Ingo Molnarf34a10b2008-12-19 01:36:14 +0100138 wrmsrl(MSR_AMD64_PATCH_LOADER, (u64)(long)&mc_amd->hdr.data_code);
Peter Oruba80cc9f12008-07-28 18:44:22 +0200139 /* get patch id after patching */
Andreas Herrmann29d08872008-12-16 19:16:34 +0100140 rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
Peter Oruba80cc9f12008-07-28 18:44:22 +0200141
142 /* check current patch id and patch's id for match */
Dmitry Adamushko18dbc912008-09-23 12:08:44 +0200143 if (rev != mc_amd->hdr.patch_id) {
Andreas Herrmann1a743572009-11-10 12:09:20 +0100144 pr_err("microcode: CPU%d: update failed "
Andreas Herrmanndf23cab2008-12-16 19:22:36 +0100145 "(for patch_level=0x%x)\n", cpu, mc_amd->hdr.patch_id);
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200146 return -1;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200147 }
148
Andreas Herrmann1a743572009-11-10 12:09:20 +0100149 pr_info("microcode: CPU%d: updated (new patch_level=0x%x)\n", cpu, rev);
Dmitry Adamushkod45de402008-08-20 00:22:26 +0200150 uci->cpu_sig.rev = rev;
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200151
152 return 0;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200153}
154
Andreas Herrmann0657d9e2008-12-16 19:14:05 +0100155static int get_ucode_data(void *to, const u8 *from, size_t n)
156{
157 memcpy(to, from, n);
158 return 0;
159}
160
Ingo Molnar4bae1962009-03-11 11:19:46 +0100161static void *
162get_next_ucode(const u8 *buf, unsigned int size, unsigned int *mc_size)
Peter Oruba80cc9f12008-07-28 18:44:22 +0200163{
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200164 unsigned int total_size;
Peter Orubad4738792008-09-17 15:39:18 +0200165 u8 section_hdr[UCODE_CONTAINER_SECTION_HDR];
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200166 void *mc;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200167
Peter Orubad4738792008-09-17 15:39:18 +0200168 if (get_ucode_data(section_hdr, buf, UCODE_CONTAINER_SECTION_HDR))
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200169 return NULL;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200170
Peter Orubad4738792008-09-17 15:39:18 +0200171 if (section_hdr[0] != UCODE_UCODE_TYPE) {
Andreas Herrmann1a743572009-11-10 12:09:20 +0100172 pr_err("microcode: error: invalid type field in "
Andreas Herrmanndf23cab2008-12-16 19:22:36 +0100173 "container file section header\n");
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200174 return NULL;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200175 }
176
Peter Orubad4738792008-09-17 15:39:18 +0200177 total_size = (unsigned long) (section_hdr[4] + (section_hdr[5] << 8));
Peter Oruba80cc9f12008-07-28 18:44:22 +0200178
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200179 if (total_size > size || total_size > UCODE_MAX_SIZE) {
Andreas Herrmann1a743572009-11-10 12:09:20 +0100180 pr_err("microcode: error: size mismatch\n");
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200181 return NULL;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200182 }
183
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200184 mc = vmalloc(UCODE_MAX_SIZE);
185 if (mc) {
186 memset(mc, 0, UCODE_MAX_SIZE);
Andreas Herrmannbe957762008-12-16 19:11:23 +0100187 if (get_ucode_data(mc, buf + UCODE_CONTAINER_SECTION_HDR,
188 total_size)) {
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200189 vfree(mc);
190 mc = NULL;
191 } else
Peter Orubad4738792008-09-17 15:39:18 +0200192 *mc_size = total_size + UCODE_CONTAINER_SECTION_HDR;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200193 }
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200194 return mc;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200195}
196
Andreas Herrmann0657d9e2008-12-16 19:14:05 +0100197static int install_equiv_cpu_table(const u8 *buf)
Peter Oruba80cc9f12008-07-28 18:44:22 +0200198{
Peter Orubab6cffde2008-09-17 15:05:52 +0200199 u8 *container_hdr[UCODE_CONTAINER_HEADER_SIZE];
200 unsigned int *buf_pos = (unsigned int *)container_hdr;
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200201 unsigned long size;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200202
Peter Orubab6cffde2008-09-17 15:05:52 +0200203 if (get_ucode_data(&container_hdr, buf, UCODE_CONTAINER_HEADER_SIZE))
Peter Oruba80cc9f12008-07-28 18:44:22 +0200204 return 0;
205
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200206 size = buf_pos[2];
Peter Oruba80cc9f12008-07-28 18:44:22 +0200207
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200208 if (buf_pos[1] != UCODE_EQUIV_CPU_TABLE_TYPE || !size) {
Andreas Herrmann1a743572009-11-10 12:09:20 +0100209 pr_err("microcode: error: invalid type field in "
Andreas Herrmanndf23cab2008-12-16 19:22:36 +0100210 "container file section header\n");
Peter Oruba80cc9f12008-07-28 18:44:22 +0200211 return 0;
212 }
213
214 equiv_cpu_table = (struct equiv_cpu_entry *) vmalloc(size);
215 if (!equiv_cpu_table) {
Andreas Herrmann1a743572009-11-10 12:09:20 +0100216 pr_err("microcode: failed to allocate equivalent CPU table\n");
Peter Oruba80cc9f12008-07-28 18:44:22 +0200217 return 0;
218 }
219
Peter Orubab6cffde2008-09-17 15:05:52 +0200220 buf += UCODE_CONTAINER_HEADER_SIZE;
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200221 if (get_ucode_data(equiv_cpu_table, buf, size)) {
222 vfree(equiv_cpu_table);
223 return 0;
224 }
Peter Oruba80cc9f12008-07-28 18:44:22 +0200225
Peter Orubab6cffde2008-09-17 15:05:52 +0200226 return size + UCODE_CONTAINER_HEADER_SIZE; /* add header length */
Peter Oruba80cc9f12008-07-28 18:44:22 +0200227}
228
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200229static void free_equiv_cpu_table(void)
Peter Oruba80cc9f12008-07-28 18:44:22 +0200230{
Figo.zhangaeef50b2009-06-07 22:30:36 +0800231 vfree(equiv_cpu_table);
232 equiv_cpu_table = NULL;
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200233}
Peter Oruba80cc9f12008-07-28 18:44:22 +0200234
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200235static enum ucode_state
236generic_load_microcode(int cpu, const u8 *data, size_t size)
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200237{
238 struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
Andreas Herrmann8c135202008-12-16 19:13:00 +0100239 const u8 *ucode_ptr = data;
240 void *new_mc = NULL;
241 void *mc;
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200242 int new_rev = uci->cpu_sig.rev;
243 unsigned int leftover;
244 unsigned long offset;
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200245 enum ucode_state state = UCODE_OK;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200246
Andreas Herrmann0657d9e2008-12-16 19:14:05 +0100247 offset = install_equiv_cpu_table(ucode_ptr);
Peter Oruba80cc9f12008-07-28 18:44:22 +0200248 if (!offset) {
Andreas Herrmann1a743572009-11-10 12:09:20 +0100249 pr_err("microcode: failed to create equivalent cpu table\n");
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200250 return UCODE_ERROR;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200251 }
252
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200253 ucode_ptr += offset;
254 leftover = size - offset;
255
256 while (leftover) {
Dmitry Adamushko2f9284e2008-09-23 22:56:35 +0200257 unsigned int uninitialized_var(mc_size);
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200258 struct microcode_header_amd *mc_header;
259
Andreas Herrmann0657d9e2008-12-16 19:14:05 +0100260 mc = get_next_ucode(ucode_ptr, leftover, &mc_size);
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200261 if (!mc)
Peter Oruba80cc9f12008-07-28 18:44:22 +0200262 break;
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200263
264 mc_header = (struct microcode_header_amd *)mc;
265 if (get_matching_microcode(cpu, mc, new_rev)) {
Figo.zhangaeef50b2009-06-07 22:30:36 +0800266 vfree(new_mc);
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200267 new_rev = mc_header->patch_id;
268 new_mc = mc;
Andreas Herrmannbe957762008-12-16 19:11:23 +0100269 } else
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200270 vfree(mc);
271
272 ucode_ptr += mc_size;
273 leftover -= mc_size;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200274 }
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200275
276 if (new_mc) {
277 if (!leftover) {
Figo.zhangaeef50b2009-06-07 22:30:36 +0800278 vfree(uci->mc);
Dmitry Adamushko18dbc912008-09-23 12:08:44 +0200279 uci->mc = new_mc;
Andreas Herrmannbe957762008-12-16 19:11:23 +0100280 pr_debug("microcode: CPU%d found a matching microcode "
281 "update with version 0x%x (current=0x%x)\n",
282 cpu, new_rev, uci->cpu_sig.rev);
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200283 } else {
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200284 vfree(new_mc);
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200285 state = UCODE_ERROR;
286 }
287 } else
288 state = UCODE_NFOUND;
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200289
290 free_equiv_cpu_table();
291
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200292 return state;
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200293}
294
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200295static enum ucode_state request_microcode_fw(int cpu, struct device *device)
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200296{
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200297 enum ucode_state ret;
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200298
Andreas Herrmannd1c84f72009-11-10 12:07:23 +0100299 if (firmware == NULL)
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200300 return UCODE_NFOUND;
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200301
Borislav Petkov506f90e2009-10-29 14:45:52 +0100302 if (*(u32 *)firmware->data != UCODE_MAGIC) {
Andreas Herrmann1a743572009-11-10 12:09:20 +0100303 pr_err("microcode: invalid UCODE_MAGIC (0x%08x)\n",
Borislav Petkov506f90e2009-10-29 14:45:52 +0100304 *(u32 *)firmware->data);
305 return UCODE_ERROR;
306 }
307
Andreas Herrmann0657d9e2008-12-16 19:14:05 +0100308 ret = generic_load_microcode(cpu, firmware->data, firmware->size);
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200309
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200310 return ret;
311}
312
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200313static enum ucode_state
314request_microcode_user(int cpu, const void __user *buf, size_t size)
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200315{
Andreas Herrmann1a743572009-11-10 12:09:20 +0100316 pr_info("microcode: AMD microcode update via "
317 "/dev/cpu/microcode not supported\n");
Dmitry Adamushko871b72d2009-05-11 23:48:27 +0200318 return UCODE_ERROR;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200319}
320
Peter Oruba80cc9f12008-07-28 18:44:22 +0200321static void microcode_fini_cpu_amd(int cpu)
322{
323 struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
324
Dmitry Adamushko18dbc912008-09-23 12:08:44 +0200325 vfree(uci->mc);
326 uci->mc = NULL;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200327}
328
Andreas Herrmannd1c84f72009-11-10 12:07:23 +0100329void init_microcode_amd(struct device *device)
330{
331 const char *fw_name = "amd-ucode/microcode_amd.bin";
Andreas Herrmann8cc23612009-11-17 08:06:38 +0100332 struct cpuinfo_x86 *c = &boot_cpu_data;
333
334 WARN_ON(c->x86_vendor != X86_VENDOR_AMD);
335
336 if (c->x86 < 0x10) {
337 pr_warning("microcode: AMD CPU family 0x%x not supported\n",
338 c->x86);
339 return;
340 }
341 supported_cpu = 1;
342
Andreas Herrmannd1c84f72009-11-10 12:07:23 +0100343 if (request_firmware(&firmware, fw_name, device))
Andreas Herrmann1a743572009-11-10 12:09:20 +0100344 pr_err("microcode: failed to load file %s\n", fw_name);
Andreas Herrmannd1c84f72009-11-10 12:07:23 +0100345}
346
347void fini_microcode_amd(void)
348{
349 release_firmware(firmware);
350}
351
Peter Oruba80cc9f12008-07-28 18:44:22 +0200352static struct microcode_ops microcode_amd_ops = {
Andreas Herrmannd1c84f72009-11-10 12:07:23 +0100353 .init = init_microcode_amd,
354 .fini = fini_microcode_amd,
Dmitry Adamushkoa0a29b62008-09-11 23:27:52 +0200355 .request_microcode_user = request_microcode_user,
356 .request_microcode_fw = request_microcode_fw,
Peter Oruba80cc9f12008-07-28 18:44:22 +0200357 .collect_cpu_info = collect_cpu_info_amd,
358 .apply_microcode = apply_microcode_amd,
359 .microcode_fini_cpu = microcode_fini_cpu_amd,
360};
361
Dmitry Adamushko18dbc912008-09-23 12:08:44 +0200362struct microcode_ops * __init init_amd_microcode(void)
Peter Oruba80cc9f12008-07-28 18:44:22 +0200363{
Dmitry Adamushko18dbc912008-09-23 12:08:44 +0200364 return &microcode_amd_ops;
Peter Oruba80cc9f12008-07-28 18:44:22 +0200365}