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| author | Dave Jones <davej@redhat.com> | 2006-03-05 03:35:00 -0500 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2006-03-05 03:35:00 -0500 |
| commit | 2a1c1c877ecb446dbdf1715248e151db8719a87b (patch) | |
| tree | d265e90cdbcbfc9b76a1c183a03688eddb5d0e6f /arch/i386 | |
| parent | 32ee8c3e470d86588b51dc42ed01e85c5fa0f180 (diff) | |
| download | kernel_samsung_smdk4412-2a1c1c877ecb446dbdf1715248e151db8719a87b.zip kernel_samsung_smdk4412-2a1c1c877ecb446dbdf1715248e151db8719a87b.tar.gz kernel_samsung_smdk4412-2a1c1c877ecb446dbdf1715248e151db8719a87b.tar.bz2 | |
[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')
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k8.c | 15 |
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 e85e905..9a8ec03 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; |