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Diffstat (limited to 'arch/i386/kernel/cpu/cpufreq/powernow-k8.c')
-rw-r--r--arch/i386/kernel/cpu/cpufreq/powernow-k8.c34
1 files changed, 12 insertions, 22 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index 798da7c2b5d..d09bec71080 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -45,7 +45,7 @@
#define PFX "powernow-k8: "
#define BFX PFX "BIOS error: "
-#define VERSION "version 1.60.0"
+#define VERSION "version 1.60.1"
#include "powernow-k8.h"
/* serialize freq changes */
@@ -83,11 +83,10 @@ static u32 find_millivolts_from_vid(struct powernow_k8_data *data, u32 vid)
*/
static u32 convert_fid_to_vco_fid(u32 fid)
{
- if (fid < HI_FID_TABLE_BOTTOM) {
+ if (fid < HI_FID_TABLE_BOTTOM)
return 8 + (2 * fid);
- } else {
+ else
return fid;
- }
}
/*
@@ -177,7 +176,7 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid)
if (i++ > 100) {
printk(KERN_ERR PFX "internal error - pending bit very stuck - no further pstate changes possible\n");
return 1;
- }
+ }
} while (query_current_values_with_pending_wait(data));
count_off_irt(data);
@@ -474,8 +473,10 @@ static int check_supported_cpu(unsigned int cpu)
goto out;
eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
+ if ((eax & CPUID_XFAM) != CPUID_XFAM_K8)
+ goto out;
+
if (((eax & CPUID_USE_XFAM_XMOD) != CPUID_USE_XFAM_XMOD) ||
- ((eax & CPUID_XFAM) != CPUID_XFAM_K8) ||
((eax & CPUID_XMOD) > CPUID_XMOD_REV_G)) {
printk(KERN_INFO PFX "Processor cpuid %x not supported\n", eax);
goto out;
@@ -780,9 +781,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
/* verify only 1 entry from the lo frequency table */
if (fid < HI_FID_TABLE_BOTTOM) {
if (cntlofreq) {
- /* if both entries are the same, ignore this
- * one...
- */
+ /* if both entries are the same, ignore this one ... */
if ((powernow_table[i].frequency != powernow_table[cntlofreq].frequency) ||
(powernow_table[i].index != powernow_table[cntlofreq].index)) {
printk(KERN_ERR PFX "Too many lo freq table entries\n");
@@ -854,7 +853,7 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde
dprintk("cpu %d transition to index %u\n", smp_processor_id(), index);
/* fid are the lower 8 bits of the index we stored into
- * the cpufreq frequency table in find_psb_table, vid are
+ * the cpufreq frequency table in find_psb_table, vid are
* the upper 8 bits.
*/
@@ -909,7 +908,6 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
u32 checkvid = data->currvid;
unsigned int newstate;
int ret = -EIO;
- int i;
/* only run on specific CPU from here on */
oldmask = current->cpus_allowed;
@@ -955,12 +953,6 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
up(&fidvid_sem);
goto err_out;
}
-
- /* Update all the fid/vids of our siblings */
- for_each_cpu_mask(i, cpu_core_map[pol->cpu]) {
- powernow_data[i]->currvid = data->currvid;
- powernow_data[i]->currfid = data->currfid;
- }
up(&fidvid_sem);
pol->cur = find_khz_freq_from_fid(data->currfid);
@@ -984,7 +976,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
{
struct powernow_k8_data *data;
cpumask_t oldmask = CPU_MASK_ALL;
- int rc, i;
+ int rc;
if (!cpu_online(pol->cpu))
return -ENODEV;
@@ -1048,7 +1040,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
pol->governor = CPUFREQ_DEFAULT_GOVERNOR;
pol->cpus = cpu_core_map[pol->cpu];
- /* Take a crude guess here.
+ /* Take a crude guess here.
* That guess was in microseconds, so multiply with 1000 */
pol->cpuinfo.transition_latency = (((data->rvo + 8) * data->vstable * VST_UNITS_20US)
+ (3 * (1 << data->irt) * 10)) * 1000;
@@ -1070,9 +1062,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
printk("cpu_init done, current fid 0x%x, vid 0x%x\n",
data->currfid, data->currvid);
- for_each_cpu_mask(i, cpu_core_map[pol->cpu]) {
- powernow_data[i] = data;
- }
+ powernow_data[pol->cpu] = data;
return 0;