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Commit c925401b authored by Yinghai Lu's avatar Yinghai Lu Committed by Dave Jones
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[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: default avatarDave Jones <davej@redhat.com>
parent 804b3f9a

arch/i386/kernel/cpu/cpufreq/powernow-k8.c

+1 −6
Original line number Diff line number Diff line
@@ -1325,21 +1325,16 @@ static struct cpufreq_driver cpufreq_amd64_driver = { 
static int __cpuinit powernowk8_init(void)

{

	unsigned int i, supported_cpus = 0;

	unsigned int booted_cores = 1;



	for_each_online_cpu(i) {

		if (check_supported_cpu(i))

			supported_cpus++;

	}



#ifdef CONFIG_SMP

	booted_cores = cpu_data[0].booted_cores;

#endif



	if (supported_cpus == num_online_cpus()) {

		printk(KERN_INFO PFX "Found %d %s "

			"processors (%d cpu cores) (" VERSION ")\n",

			supported_cpus/booted_cores,

			num_online_nodes(),

			boot_cpu_data.x86_model_id, supported_cpus);

		return cpufreq_register_driver(&cpufreq_amd64_driver);

	}