static enum ucode_state
generic_load_microcode(int cpu, const u8 *data, size_t size)
{
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
const u8 *ucode_ptr = data;
void *new_mc = NULL;
void *mc;
int new_rev = uci->cpu_sig.rev;
unsigned int leftover;
unsigned long offset;
enum ucode_state state = UCODE_OK;
offset = install_equiv_cpu_table(ucode_ptr);
if (!offset) {
printk(KERN_ERR "microcode: failed to create "
"equivalent cpu table\n");
return UCODE_ERROR;
}
ucode_ptr += offset;
leftover = size - offset;
while (leftover) {
unsigned int uninitialized_var(mc_size);
struct microcode_header_amd *mc_header;
mc = get_next_ucode(cpu, ucode_ptr, leftover, &mc_size);
if (!mc)
break;
mc_header = (struct microcode_header_amd *)mc;
if (get_matching_microcode(cpu, mc, new_rev)) {
vfree(new_mc);
new_rev = mc_header->patch_id;
new_mc = mc;
} else
vfree(mc);
ucode_ptr += mc_size;
leftover -= mc_size;
}
if (new_mc) {
if (!leftover) {
vfree(uci->mc);
uci->mc = new_mc;
pr_debug("microcode: CPU%d found a matching microcode "
"update with version 0x%x (current=0x%x)\n",
cpu, new_rev, uci->cpu_sig.rev);
} else {
vfree(new_mc);
state = UCODE_ERROR;
}
} else
state = UCODE_NFOUND;
free_equiv_cpu_table();
return state;
}
static enum ucode_state
generic_load_microcode(int cpu, const u8 *data, size_t size)
{
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
struct microcode_header_amd *mc_hdr = NULL;
unsigned int mc_size, leftover;
int offset;
const u8 *ucode_ptr = data;
void *new_mc = NULL;
unsigned int new_rev = uci->cpu_sig.rev;
enum ucode_state state = UCODE_OK;
offset = install_equiv_cpu_table(ucode_ptr);
if (offset < 0) {
pr_err("failed to create equivalent cpu table\n");
return UCODE_ERROR;
}
ucode_ptr += offset;
leftover = size - offset;
while (leftover) {
mc_hdr = get_next_ucode(cpu, ucode_ptr, leftover, &mc_size);
if (!mc_hdr)
break;
if (get_matching_microcode(cpu, mc_hdr, new_rev)) {
vfree(new_mc);
new_rev = mc_hdr->patch_id;
new_mc = mc_hdr;
} else
vfree(mc_hdr);
ucode_ptr += mc_size;
leftover -= mc_size;
}
if (!new_mc) {
state = UCODE_NFOUND;
goto free_table;
}
if (!leftover) {
vfree(uci->mc);
uci->mc = new_mc;
pr_debug("CPU%d update ucode (0x%08x -> 0x%08x)\n",
cpu, uci->cpu_sig.rev, new_rev);
} else {
vfree(new_mc);
state = UCODE_ERROR;
}
free_table:
free_equiv_cpu_table();
return state;
}