/*
* 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)
{
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, (const char *)fw_name, device)) {
pr_err("failed to load file %s\n", fw_name);
goto out;
}
ret = UCODE_ERROR;
if (*(u32 *)fw->data != UCODE_MAGIC) {
pr_err("invalid magic value (0x%08x)\n", *(u32 *)fw->data);
goto fw_release;
}
ret = generic_load_microcode(cpu, fw->data, fw->size);
fw_release:
release_firmware(fw);
out:
return ret;
}
static enum ucode_state request_microcode_fw(int cpu, struct device *device)
{
enum ucode_state ret;
if (firmware == NULL)
return UCODE_NFOUND;
if (*(u32 *)firmware->data != UCODE_MAGIC) {
printk(KERN_ERR "microcode: invalid UCODE_MAGIC (0x%08x)\n",
*(u32 *)firmware->data);
return UCODE_ERROR;
}
ret = generic_load_microcode(cpu, firmware->data, firmware->size);
return ret;
}
static int request_microcode_fw(int cpu, struct device *device)
{
const char *fw_name = "amd-ucode/microcode_amd.bin";
const struct firmware *firmware;
int ret;
/* We should bind the task to the CPU */
BUG_ON(cpu != raw_smp_processor_id());
ret = request_firmware(&firmware, fw_name, device);
if (ret) {
printk(KERN_ERR "microcode: failed to load file %s\n", fw_name);
return ret;
}
ret = generic_load_microcode(cpu, firmware->data, firmware->size);
release_firmware(firmware);
return ret;
}
static enum ucode_state request_microcode_fw(int cpu, struct device *device)
{
const char *fw_name = "amd-ucode/microcode_amd.bin";
const struct firmware *firmware;
enum ucode_state ret;
if (request_firmware(&firmware, fw_name, device)) {
printk(KERN_ERR "microcode: failed to load file %s\n", fw_name);
return UCODE_NFOUND;
}
if (*(u32 *)firmware->data != UCODE_MAGIC) {
printk(KERN_ERR "microcode: invalid UCODE_MAGIC (0x%08x)\n",
*(u32 *)firmware->data);
return UCODE_ERROR;
}
ret = generic_load_microcode(cpu, firmware->data, firmware->size);
release_firmware(firmware);
return ret;
}
