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authorDave Jones <davej@redhat.com>2006-03-05 03:35:00 -0500
committerDave Jones <davej@redhat.com>2006-03-05 03:35:00 -0500
commit2a1c1c877ecb446dbdf1715248e151db8719a87b (patch)
treed265e90cdbcbfc9b76a1c183a03688eddb5d0e6f /arch/i386/kernel/cpu
parent32ee8c3e470d86588b51dc42ed01e85c5fa0f180 (diff)
[CPUFREQ] powernow-k8: Let cpufreq driver handle affected CPUs
powernow-k8: Let cpufreq driver handle affected CPUs Let the cpufreq driver manage AMD Dual-Core CPUs being tied together. Since cpufreq driver's affected CPUs data, cpufreq_policy->cpus, already knows about which cores are tied together, powernow driver does not have keep its internal data for every core. (even a pointer.. it will never be called on) Telling cpufreq driver about cpu_core_map at init time is sufficient. Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/i386/kernel/cpu')
-rw-r--r--arch/i386/kernel/cpu/cpufreq/powernow-k8.c15
1 files changed, 3 insertions, 12 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index e85e90524df..9a8ec03cde9 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 */
@@ -908,7 +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;
@@ -954,12 +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);
@@ -983,7 +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;
@@ -1069,9 +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;