static int smbios_write_type4(unsigned long *current, int handle)
{
struct cpuid_result res;
struct smbios_type4 *t = (struct smbios_type4 *)*current;
int len = sizeof(struct smbios_type4);
/* Provide sane defaults even for CPU without CPUID */
res.eax = res.edx = 0;
res.ebx = 0x10000;
if (cpu_have_cpuid()) {
res = cpuid(1);
}
memset(t, 0, sizeof(struct smbios_type4));
t->type = SMBIOS_PROCESSOR_INFORMATION;
t->handle = handle;
t->length = len - 2;
t->processor_id[0] = res.eax;
t->processor_id[1] = res.edx;
t->processor_manufacturer = smbios_cpu_vendor(t->eos);
t->processor_version = smbios_processor_name(t->eos);
t->processor_family = (res.eax > 0) ? 0x0c : 0x6;
t->processor_type = 3; /* System Processor */
t->processor_upgrade = 0x06;
t->core_count = (res.ebx >> 16) & 0xff;
t->l1_cache_handle = 0xffff;
t->l2_cache_handle = 0xffff;
t->l3_cache_handle = 0xffff;
t->processor_upgrade = 1;
len = t->length + smbios_string_table_len(t->eos);
*current += len;
return len;
}
static int smbios_cpu_vendor(u8 *start)
{
if (cpu_have_cpuid()) {
u32 tmp[4];
const struct cpuid_result res = cpuid(0);
tmp[0] = res.ebx;
tmp[1] = res.edx;
tmp[2] = res.ecx;
tmp[3] = 0;
return smbios_add_string(start, (const char *)tmp);
} else {
return smbios_add_string(start, "Unknown");
}
}
static int smbios_cpu_vendor(char *start)
{
char tmp[13] = "Unknown";
u32 *_tmp = (u32 *)tmp;
struct cpuid_result res;
if (cpu_have_cpuid()) {
res = cpuid(0);
_tmp[0] = res.ebx;
_tmp[1] = res.edx;
_tmp[2] = res.ecx;
tmp[12] = '\0';
}
return smbios_add_string(start, tmp);
}
static int smbios_processor_name(char *start)
{
char tmp[49] = "Unknown Processor Name";
u32 *_tmp = (u32 *)tmp;
struct cpuid_result res;
int i;
if (cpu_have_cpuid()) {
res = cpuid(0x80000000);
if (res.eax >= 0x80000004) {
for (i = 0; i < 3; i++) {
res = cpuid(0x80000002 + i);
_tmp[i * 4 + 0] = res.eax;
_tmp[i * 4 + 1] = res.ebx;
_tmp[i * 4 + 2] = res.ecx;
_tmp[i * 4 + 3] = res.edx;
}
tmp[48] = 0;
}
}
return smbios_add_string(start, tmp);
}
static int smbios_processor_name(u8 *start)
{
u32 tmp[13];
const char *str = "Unknown Processor Name";
if (cpu_have_cpuid()) {
int i;
struct cpuid_result res = cpuid(0x80000000);
if (res.eax >= 0x80000004) {
int j = 0;
for (i = 0; i < 3; i++) {
res = cpuid(0x80000002 + i);
tmp[j++] = res.eax;
tmp[j++] = res.ebx;
tmp[j++] = res.ecx;
tmp[j++] = res.edx;
}
tmp[12] = 0;
str = (const char *)tmp;
}
}
return smbios_add_string(start, str);
}