aboutsummaryrefslogtreecommitdiff
path: root/arch/i386/kernel/cpu
diff options
context:
space:
mode:
Diffstat (limited to 'arch/i386/kernel/cpu')
-rw-r--r--arch/i386/kernel/cpu/common.c5
-rw-r--r--arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c3
-rw-r--r--arch/i386/kernel/cpu/cpufreq/powernow-k7.c12
-rw-r--r--arch/i386/kernel/cpu/cpufreq/powernow-k8.c19
-rw-r--r--arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c5
-rw-r--r--arch/i386/kernel/cpu/mcheck/k7.c2
-rw-r--r--arch/i386/kernel/cpu/mcheck/mce.c4
-rw-r--r--arch/i386/kernel/cpu/mcheck/p4.c4
-rw-r--r--arch/i386/kernel/cpu/mcheck/p5.c2
-rw-r--r--arch/i386/kernel/cpu/mcheck/p6.c2
-rw-r--r--arch/i386/kernel/cpu/mcheck/winchip.c2
11 files changed, 18 insertions, 42 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index 74145a33cb0..c145fb30002 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -30,8 +30,6 @@ static int disable_x86_serial_nr __devinitdata = 1;
struct cpu_dev * cpu_devs[X86_VENDOR_NUM] = {};
-extern void mcheck_init(struct cpuinfo_x86 *c);
-
extern int disable_pse;
static void default_init(struct cpuinfo_x86 * c)
@@ -429,9 +427,8 @@ void __devinit identify_cpu(struct cpuinfo_x86 *c)
}
/* Init Machine Check Exception if available. */
-#ifdef CONFIG_X86_MCE
mcheck_init(c);
-#endif
+
if (c == &boot_cpu_data)
sysenter_setup();
enable_sep_cpu();
diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index caa9f771134..871366b83b3 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -377,10 +377,9 @@ acpi_cpufreq_cpu_init (
arg0.buffer.length = 12;
arg0.buffer.pointer = (u8 *) arg0_buf;
- data = kmalloc(sizeof(struct cpufreq_acpi_io), GFP_KERNEL);
+ data = kzalloc(sizeof(struct cpufreq_acpi_io), GFP_KERNEL);
if (!data)
return (-ENOMEM);
- memset(data, 0, sizeof(struct cpufreq_acpi_io));
acpi_io_data[cpu] = data;
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
index 73a5dc5b26b..edcd626001d 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
@@ -171,10 +171,9 @@ static int get_ranges (unsigned char *pst)
unsigned int speed;
u8 fid, vid;
- powernow_table = kmalloc((sizeof(struct cpufreq_frequency_table) * (number_scales + 1)), GFP_KERNEL);
+ powernow_table = kzalloc((sizeof(struct cpufreq_frequency_table) * (number_scales + 1)), GFP_KERNEL);
if (!powernow_table)
return -ENOMEM;
- memset(powernow_table, 0, (sizeof(struct cpufreq_frequency_table) * (number_scales + 1)));
for (j=0 ; j < number_scales; j++) {
fid = *pst++;
@@ -305,16 +304,13 @@ static int powernow_acpi_init(void)
goto err0;
}
- acpi_processor_perf = kmalloc(sizeof(struct acpi_processor_performance),
+ acpi_processor_perf = kzalloc(sizeof(struct acpi_processor_performance),
GFP_KERNEL);
-
if (!acpi_processor_perf) {
retval = -ENOMEM;
goto err0;
}
- memset(acpi_processor_perf, 0, sizeof(struct acpi_processor_performance));
-
if (acpi_processor_register_performance(acpi_processor_perf, 0)) {
retval = -EIO;
goto err1;
@@ -337,14 +333,12 @@ static int powernow_acpi_init(void)
goto err2;
}
- powernow_table = kmalloc((number_scales + 1) * (sizeof(struct cpufreq_frequency_table)), GFP_KERNEL);
+ powernow_table = kzalloc((number_scales + 1) * (sizeof(struct cpufreq_frequency_table)), GFP_KERNEL);
if (!powernow_table) {
retval = -ENOMEM;
goto err2;
}
- memset(powernow_table, 0, ((number_scales + 1) * sizeof(struct cpufreq_frequency_table)));
-
pc.val = (unsigned long) acpi_processor_perf->states[0].control;
for (i = 0; i < number_scales; i++) {
u8 fid, vid;
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index 2d5c9adba0c..68a1fc87f4c 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -462,7 +462,6 @@ static int check_supported_cpu(unsigned int cpu)
oldmask = current->cpus_allowed;
set_cpus_allowed(current, cpumask_of_cpu(cpu));
- schedule();
if (smp_processor_id() != cpu) {
printk(KERN_ERR "limiting to cpu %u failed\n", cpu);
@@ -497,9 +496,7 @@ static int check_supported_cpu(unsigned int cpu)
out:
set_cpus_allowed(current, oldmask);
- schedule();
return rc;
-
}
static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst, u8 maxvid)
@@ -913,7 +910,6 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
/* only run on specific CPU from here on */
oldmask = current->cpus_allowed;
set_cpus_allowed(current, cpumask_of_cpu(pol->cpu));
- schedule();
if (smp_processor_id() != pol->cpu) {
printk(KERN_ERR "limiting to cpu %u failed\n", pol->cpu);
@@ -968,8 +964,6 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
err_out:
set_cpus_allowed(current, oldmask);
- schedule();
-
return ret;
}
@@ -991,12 +985,11 @@ static int __init powernowk8_cpu_init(struct cpufreq_policy *pol)
if (!check_supported_cpu(pol->cpu))
return -ENODEV;
- data = kmalloc(sizeof(struct powernow_k8_data), GFP_KERNEL);
+ data = kzalloc(sizeof(struct powernow_k8_data), GFP_KERNEL);
if (!data) {
printk(KERN_ERR PFX "unable to alloc powernow_k8_data");
return -ENOMEM;
}
- memset(data,0,sizeof(struct powernow_k8_data));
data->cpu = pol->cpu;
@@ -1026,7 +1019,6 @@ static int __init powernowk8_cpu_init(struct cpufreq_policy *pol)
/* only run on specific CPU from here on */
oldmask = current->cpus_allowed;
set_cpus_allowed(current, cpumask_of_cpu(pol->cpu));
- schedule();
if (smp_processor_id() != pol->cpu) {
printk(KERN_ERR "limiting to cpu %u failed\n", pol->cpu);
@@ -1045,7 +1037,6 @@ static int __init powernowk8_cpu_init(struct cpufreq_policy *pol)
/* run on any CPU again */
set_cpus_allowed(current, oldmask);
- schedule();
pol->governor = CPUFREQ_DEFAULT_GOVERNOR;
pol->cpus = cpu_core_map[pol->cpu];
@@ -1080,7 +1071,6 @@ static int __init powernowk8_cpu_init(struct cpufreq_policy *pol)
err_out:
set_cpus_allowed(current, oldmask);
- schedule();
powernow_k8_cpu_exit_acpi(data);
kfree(data);
@@ -1116,17 +1106,14 @@ static unsigned int powernowk8_get (unsigned int cpu)
set_cpus_allowed(current, oldmask);
return 0;
}
- preempt_disable();
-
+
if (query_current_values_with_pending_wait(data))
goto out;
khz = find_khz_freq_from_fid(data->currfid);
- out:
- preempt_enable_no_resched();
+out:
set_cpus_allowed(current, oldmask);
-
return khz;
}
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index 1465974256c..edb9873e27e 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -67,7 +67,7 @@ static const struct cpu_id cpu_ids[] = {
[CPU_MP4HT_D0] = {15, 3, 4 },
[CPU_MP4HT_E0] = {15, 4, 1 },
};
-#define N_IDS (sizeof(cpu_ids)/sizeof(cpu_ids[0]))
+#define N_IDS ARRAY_SIZE(cpu_ids)
struct cpu_model
{
@@ -423,12 +423,11 @@ static int centrino_cpu_init_acpi(struct cpufreq_policy *policy)
}
}
- centrino_model[cpu] = kmalloc(sizeof(struct cpu_model), GFP_KERNEL);
+ centrino_model[cpu] = kzalloc(sizeof(struct cpu_model), GFP_KERNEL);
if (!centrino_model[cpu]) {
result = -ENOMEM;
goto err_unreg;
}
- memset(centrino_model[cpu], 0, sizeof(struct cpu_model));
centrino_model[cpu]->model_name=NULL;
centrino_model[cpu]->max_freq = p.states[0].core_frequency * 1000;
diff --git a/arch/i386/kernel/cpu/mcheck/k7.c b/arch/i386/kernel/cpu/mcheck/k7.c
index 7c6b9c73522..fc5d5215e23 100644
--- a/arch/i386/kernel/cpu/mcheck/k7.c
+++ b/arch/i386/kernel/cpu/mcheck/k7.c
@@ -68,7 +68,7 @@ static fastcall void k7_machine_check(struct pt_regs * regs, long error_code)
/* AMD K7 machine check is Intel like */
-void __devinit amd_mcheck_init(struct cpuinfo_x86 *c)
+void amd_mcheck_init(struct cpuinfo_x86 *c)
{
u32 l, h;
int i;
diff --git a/arch/i386/kernel/cpu/mcheck/mce.c b/arch/i386/kernel/cpu/mcheck/mce.c
index 2cf25d2ba0f..6170af3c271 100644
--- a/arch/i386/kernel/cpu/mcheck/mce.c
+++ b/arch/i386/kernel/cpu/mcheck/mce.c
@@ -16,7 +16,7 @@
#include "mce.h"
-int mce_disabled __devinitdata = 0;
+int mce_disabled = 0;
int nr_mce_banks;
EXPORT_SYMBOL_GPL(nr_mce_banks); /* non-fatal.o */
@@ -31,7 +31,7 @@ static fastcall void unexpected_machine_check(struct pt_regs * regs, long error_
void fastcall (*machine_check_vector)(struct pt_regs *, long error_code) = unexpected_machine_check;
/* This has to be run for each processor */
-void __devinit mcheck_init(struct cpuinfo_x86 *c)
+void mcheck_init(struct cpuinfo_x86 *c)
{
if (mce_disabled==1)
return;
diff --git a/arch/i386/kernel/cpu/mcheck/p4.c b/arch/i386/kernel/cpu/mcheck/p4.c
index 1d1e885f500..fd2c459a31e 100644
--- a/arch/i386/kernel/cpu/mcheck/p4.c
+++ b/arch/i386/kernel/cpu/mcheck/p4.c
@@ -77,7 +77,7 @@ fastcall void smp_thermal_interrupt(struct pt_regs *regs)
}
/* P4/Xeon Thermal regulation detect and init */
-static void __devinit intel_init_thermal(struct cpuinfo_x86 *c)
+static void intel_init_thermal(struct cpuinfo_x86 *c)
{
u32 l, h;
unsigned int cpu = smp_processor_id();
@@ -231,7 +231,7 @@ static fastcall void intel_machine_check(struct pt_regs * regs, long error_code)
}
-void __devinit intel_p4_mcheck_init(struct cpuinfo_x86 *c)
+void intel_p4_mcheck_init(struct cpuinfo_x86 *c)
{
u32 l, h;
int i;
diff --git a/arch/i386/kernel/cpu/mcheck/p5.c b/arch/i386/kernel/cpu/mcheck/p5.c
index 3a2e24baddc..94bc43d950c 100644
--- a/arch/i386/kernel/cpu/mcheck/p5.c
+++ b/arch/i386/kernel/cpu/mcheck/p5.c
@@ -28,7 +28,7 @@ static fastcall void pentium_machine_check(struct pt_regs * regs, long error_cod
}
/* Set up machine check reporting for processors with Intel style MCE */
-void __devinit intel_p5_mcheck_init(struct cpuinfo_x86 *c)
+void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
{
u32 l, h;
diff --git a/arch/i386/kernel/cpu/mcheck/p6.c b/arch/i386/kernel/cpu/mcheck/p6.c
index 979b18bc95c..deeae42ce19 100644
--- a/arch/i386/kernel/cpu/mcheck/p6.c
+++ b/arch/i386/kernel/cpu/mcheck/p6.c
@@ -79,7 +79,7 @@ static fastcall void intel_machine_check(struct pt_regs * regs, long error_code)
}
/* Set up machine check reporting for processors with Intel style MCE */
-void __devinit intel_p6_mcheck_init(struct cpuinfo_x86 *c)
+void intel_p6_mcheck_init(struct cpuinfo_x86 *c)
{
u32 l, h;
int i;
diff --git a/arch/i386/kernel/cpu/mcheck/winchip.c b/arch/i386/kernel/cpu/mcheck/winchip.c
index 5b9d2dd411d..9e424b6c293 100644
--- a/arch/i386/kernel/cpu/mcheck/winchip.c
+++ b/arch/i386/kernel/cpu/mcheck/winchip.c
@@ -22,7 +22,7 @@ static fastcall void winchip_machine_check(struct pt_regs * regs, long error_cod
}
/* Set up machine check reporting on the Winchip C6 series */
-void __devinit winchip_mcheck_init(struct cpuinfo_x86 *c)
+void winchip_mcheck_init(struct cpuinfo_x86 *c)
{
u32 lo, hi;
machine_check_vector = winchip_machine_check;