diff options
| author | Ingo Molnar <mingo@elte.hu> | 2012-02-07 11:33:48 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-02-07 11:33:51 +0100 |
| commit | 7915a2e902df9fdb5ea5d5786a4172b38d0ea71e (patch) | |
| tree | 72b67d3079ffad2f5e21a5a449d210b355da13b6 /arch/x86/kernel/microcode_amd.c | |
| parent | 35f1790e6c6a7e4cae57b616cf36444d27fa6b28 (diff) | |
| parent | 23783f817bceedd6d4e549385e3f400ea64059e5 (diff) | |
Merge branch 'linus' into x86/boot
Merge this into x86/boot so that we can queue up dependent patches.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/microcode_amd.c')
| -rw-r--r-- | arch/x86/kernel/microcode_amd.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index fe86493f3ed1..ac0417be9131 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -311,13 +311,33 @@ out: return state; } +/* + * AMD microcode firmware naming convention, up to family 15h they are in + * the legacy file: + * + * amd-ucode/microcode_amd.bin + * + * This legacy file is always smaller than 2K in size. + * + * Starting at family 15h they are in family specific firmware files: + * + * amd-ucode/microcode_amd_fam15h.bin + * amd-ucode/microcode_amd_fam16h.bin + * ... + * + * These might be larger than 2K. + */ static enum ucode_state request_microcode_amd(int cpu, struct device *device) { - const char *fw_name = "amd-ucode/microcode_amd.bin"; + char fw_name[36] = "amd-ucode/microcode_amd.bin"; const struct firmware *fw; enum ucode_state ret = UCODE_NFOUND; + struct cpuinfo_x86 *c = &cpu_data(cpu); + + if (c->x86 >= 0x15) + snprintf(fw_name, sizeof(fw_name), "amd-ucode/microcode_amd_fam%.2xh.bin", c->x86); - if (request_firmware(&fw, fw_name, device)) { + if (request_firmware(&fw, (const char *)fw_name, device)) { pr_err("failed to load file %s\n", fw_name); goto out; } |