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authorYinghai Lu <Yinghai.Lu@Sun.COM>2007-08-22 21:44:20 -0400
committerDave Jones <davej@redhat.com>2007-10-04 18:40:56 -0400
commitc925401b6dc2229adbb15b2f3c9f0f2d9253a5d5 (patch)
tree8cac9908818a1761babf512ed9ffaa08b7c92160 /arch/i386/kernel/cpu/cpufreq/powernow-k8.c
parent804b3f9a16e446cb023417faec58b6506c834052 (diff)
[CPUFREQ] x86: use num_online_nodes to get physical cpus numbers for
powernow_k8 [PATCH] x86: use num_online_nodes to get physical cpus numbers for powernow_k8 For opteron based system, don't assume all physical cpus have the same booted cpus even same cores. esp for downcore case. Signed-off-by: Yinghai Lu <yinghai.sun.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/i386/kernel/cpu/cpufreq/powernow-k8.c')
-rw-r--r--arch/i386/kernel/cpu/cpufreq/powernow-k8.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index 34ed53a0673..372df6e67e8 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -1325,21 +1325,16 @@ static struct cpufreq_driver cpufreq_amd64_driver = {
1325static int __cpuinit powernowk8_init(void) 1325static int __cpuinit powernowk8_init(void)
1326{ 1326{
1327 unsigned int i, supported_cpus = 0; 1327 unsigned int i, supported_cpus = 0;
1328 unsigned int booted_cores = 1;
1329 1328
1330 for_each_online_cpu(i) { 1329 for_each_online_cpu(i) {
1331 if (check_supported_cpu(i)) 1330 if (check_supported_cpu(i))
1332 supported_cpus++; 1331 supported_cpus++;
1333 } 1332 }
1334 1333
1335#ifdef CONFIG_SMP
1336 booted_cores = cpu_data[0].booted_cores;
1337#endif
1338
1339 if (supported_cpus == num_online_cpus()) { 1334 if (supported_cpus == num_online_cpus()) {
1340 printk(KERN_INFO PFX "Found %d %s " 1335 printk(KERN_INFO PFX "Found %d %s "
1341 "processors (%d cpu cores) (" VERSION ")\n", 1336 "processors (%d cpu cores) (" VERSION ")\n",
1342 supported_cpus/booted_cores, 1337 num_online_nodes(),
1343 boot_cpu_data.x86_model_id, supported_cpus); 1338 boot_cpu_data.x86_model_id, supported_cpus);
1344 return cpufreq_register_driver(&cpufreq_amd64_driver); 1339 return cpufreq_register_driver(&cpufreq_amd64_driver);
1345 } 1340 }