firewire: fw-ohci: make sure HCControl register LPS bit is set

[linux-2.6-omap-h63xx.git] / drivers / acpi / processor_perflib.c

diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index c4efc0c17f8f3029d244962be92482b30e36bcb4..b477a4be8a698fde564465278cf7c09321f9b00b 100644 (file)
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -50,6 +50,10 @@ ACPI_MODULE_NAME("processor_perflib");
 
 static DEFINE_MUTEX(performance_mutex);
 
+/* Use cpufreq debug layer for _PPC changes. */
+#define cpufreq_printk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, \
+                                               "cpufreq-core", msg)
+
 /*
  * _PPC support is implemented as a CPUfreq policy notifier:
  * This means each time a CPUfreq driver registered also with
@@ -60,6 +64,11 @@ static DEFINE_MUTEX(performance_mutex);
  * policy is adjusted accordingly.
  */
 
+static unsigned int ignore_ppc = 0;
+module_param(ignore_ppc, uint, 0644);
+MODULE_PARM_DESC(ignore_ppc, "If the frequency of your machine gets wrongly" \
+                "limited by BIOS, this should help");
+
 #define PPC_REGISTERED   1
 #define PPC_IN_USE       2
 
@@ -72,6 +81,9 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb,
        struct acpi_processor *pr;
        unsigned int ppc = 0;
 
+       if (ignore_ppc)
+               return 0;
+
        mutex_lock(&performance_mutex);
 
        if (event != CPUFREQ_INCOMPATIBLE)
@@ -123,6 +135,9 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
                return -ENODEV;
        }
 
+       cpufreq_printk("CPU %d: _PPC is %d - frequency %s limited\n", pr->id,
+                      (int)ppc, ppc ? "" : "not");
+
        pr->performance_platform_limit = (int)ppc;
 
        return 0;
@@ -130,7 +145,13 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
 
 int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
 {
-       int ret = acpi_processor_get_platform_limit(pr);
+       int ret;
+
+       if (ignore_ppc)
+               return 0;
+
+       ret = acpi_processor_get_platform_limit(pr);
+
        if (ret < 0)
                return (ret);
        else
@@ -539,7 +560,7 @@ end:
 }
 
 int acpi_processor_preregister_performance(
-               struct acpi_processor_performance **performance)
+               struct acpi_processor_performance *performance)
 {
        int count, count_target;
        int retval = 0;
@@ -567,12 +588,12 @@ int acpi_processor_preregister_performance(
                        continue;
                }
 
-               if (!performance || !performance[i]) {
+               if (!performance || !percpu_ptr(performance, i)) {
                        retval = -EINVAL;
                        continue;
                }
 
-               pr->performance = performance[i];
+               pr->performance = percpu_ptr(performance, i);
                cpu_set(i, pr->performance->shared_cpu_map);
                if (acpi_processor_get_psd(pr)) {
                        retval = -EINVAL;