X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fsparc64%2Fkernel%2Fus3_cpufreq.c;h=47e3acafb5be4c0f0786bbe12fd2b353334f4d92;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=18fe54b8aa551c5eb94a2e414f0b0b619a329a25;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/arch/sparc64/kernel/us3_cpufreq.c b/arch/sparc64/kernel/us3_cpufreq.c
index 18fe54b8a..47e3acafb 100644
--- a/arch/sparc64/kernel/us3_cpufreq.c
+++ b/arch/sparc64/kernel/us3_cpufreq.c
@@ -56,7 +56,7 @@ static void write_safari_cfg(unsigned long val)
 
 static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg)
 {
-	unsigned long clock_tick = sparc64_get_clock_tick(cpu);
+	unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
 	unsigned long ret;
 
 	switch (safari_cfg & SAFARI_CFG_DIV_MASK) {
@@ -76,6 +76,26 @@ static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg
 	return ret;
 }
 
+static unsigned int us3_freq_get(unsigned int cpu)
+{
+	cpumask_t cpus_allowed;
+	unsigned long reg;
+	unsigned int ret;
+
+	if (!cpu_online(cpu))
+		return 0;
+
+	cpus_allowed = current->cpus_allowed;
+	set_cpus_allowed(current, cpumask_of_cpu(cpu));
+
+	reg = read_safari_cfg();
+	ret = get_current_freq(cpu, reg);
+
+	set_cpus_allowed(current, cpus_allowed);
+
+	return ret;
+}
+
 static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index)
 {
 	unsigned long new_bits, new_freq, reg;
@@ -88,7 +108,7 @@ static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index)
 	cpus_allowed = current->cpus_allowed;
 	set_cpus_allowed(current, cpumask_of_cpu(cpu));
 
-	new_freq = sparc64_get_clock_tick(cpu);
+	new_freq = sparc64_get_clock_tick(cpu) / 1000;
 	switch (index) {
 	case 0:
 		new_bits = SAFARI_CFG_DIV_1;
@@ -150,7 +170,7 @@ static int us3_freq_verify(struct cpufreq_policy *policy)
 static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
 {
 	unsigned int cpu = policy->cpu;
-	unsigned long clock_tick = sparc64_get_clock_tick(cpu);
+	unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
 	struct cpufreq_frequency_table *table =
 		&us3_freq_table[cpu].table[0];
 
@@ -183,32 +203,35 @@ static int __init us3_freq_init(void)
 	unsigned long manuf, impl, ver;
 	int ret;
 
+	if (tlb_type != cheetah && tlb_type != cheetah_plus)
+		return -ENODEV;
+
 	__asm__("rdpr %%ver, %0" : "=r" (ver));
 	manuf = ((ver >> 48) & 0xffff);
 	impl  = ((ver >> 32) & 0xffff);
 
 	if (manuf == CHEETAH_MANUF &&
-	    (impl == CHEETAH_IMPL || impl == CHEETAH_PLUS_IMPL)) {
+	    (impl == CHEETAH_IMPL ||
+	     impl == CHEETAH_PLUS_IMPL ||
+	     impl == JAGUAR_IMPL ||
+	     impl == PANTHER_IMPL)) {
 		struct cpufreq_driver *driver;
 
 		ret = -ENOMEM;
-		driver = kmalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
+		driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
 		if (!driver)
 			goto err_out;
-		memset(driver, 0, sizeof(*driver));
 
-		us3_freq_table = kmalloc(
+		us3_freq_table = kzalloc(
 			(NR_CPUS * sizeof(struct us3_freq_percpu_info)),
 			GFP_KERNEL);
 		if (!us3_freq_table)
 			goto err_out;
 
-		memset(us3_freq_table, 0,
-		       (NR_CPUS * sizeof(struct us3_freq_percpu_info)));
-
+		driver->init = us3_freq_cpu_init;
 		driver->verify = us3_freq_verify;
 		driver->target = us3_freq_target;
-		driver->init = us3_freq_cpu_init;
+		driver->get = us3_freq_get;
 		driver->exit = us3_freq_cpu_exit;
 		driver->owner = THIS_MODULE,
 		strcpy(driver->name, "UltraSPARC-III");
@@ -225,10 +248,8 @@ err_out:
 			kfree(driver);
 			cpufreq_us3_driver = NULL;
 		}
-		if (us3_freq_table) {
-			kfree(us3_freq_table);
-			us3_freq_table = NULL;
-		}
+		kfree(us3_freq_table);
+		us3_freq_table = NULL;
 		return ret;
 	}
 
@@ -239,7 +260,6 @@ static void __exit us3_freq_exit(void)
 {
 	if (cpufreq_us3_driver) {
 		cpufreq_unregister_driver(cpufreq_us3_driver);
-
 		kfree(cpufreq_us3_driver);
 		cpufreq_us3_driver = NULL;
 		kfree(us3_freq_table);