coretemp: Get microcode revision from cpu_data
Now that the ucode revision is available in cpu_data remove
the existing code in coretemp.c to query it manually. Read the
ucode revision from cpu_data instead
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: jbeulich@novell.com
Cc: fenghua.yu@intel.com
Cc: khali@linux-fr.org
Link: http://lkml.kernel.org/r/1318466795-7393-3-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 9323837..ce18c04 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -325,15 +325,6 @@
return adjust_tjmax(c, id, dev);
}
-static void __devinit get_ucode_rev_on_cpu(void *edx)
-{
- u32 eax;
-
- wrmsr(MSR_IA32_UCODE_REV, 0, 0);
- sync_core();
- rdmsr(MSR_IA32_UCODE_REV, eax, *(u32 *)edx);
-}
-
static int create_name_attr(struct platform_data *pdata, struct device *dev)
{
sysfs_attr_init(&pdata->name_attr.attr);
@@ -380,27 +371,16 @@
static int __cpuinit chk_ucode_version(unsigned int cpu)
{
struct cpuinfo_x86 *c = &cpu_data(cpu);
- int err;
- u32 edx;
/*
* Check if we have problem with errata AE18 of Core processors:
* Readings might stop update when processor visited too deep sleep,
* fixed for stepping D0 (6EC).
*/
- if (c->x86_model == 0xe && c->x86_mask < 0xc) {
- /* check for microcode update */
- err = smp_call_function_single(cpu, get_ucode_rev_on_cpu,
- &edx, 1);
- if (err) {
- pr_err("Cannot determine microcode revision of "
- "CPU#%u (%d)!\n", cpu, err);
- return -ENODEV;
- } else if (edx < 0x39) {
- pr_err("Errata AE18 not fixed, update BIOS or "
- "microcode of the CPU!\n");
- return -ENODEV;
- }
+ if (c->x86_model == 0xe && c->x86_mask < 0xc && c->microcode < 0x39) {
+ pr_err("Errata AE18 not fixed, update BIOS or "
+ "microcode of the CPU!\n");
+ return -ENODEV;
}
return 0;
}
