summaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/cpu
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kernel/cpu')
-rw-r--r--arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c28
-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k8.c32
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c13
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-ich.c20
-rw-r--r--arch/x86/kernel/cpu/intel_cacheinfo.c92
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce_amd_64.c46
6 files changed, 130 insertions, 101 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index a962dcb9c40..e2d870de837 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -192,9 +192,9 @@ static void drv_read(struct drv_cmd *cmd)
cpumask_t saved_mask = current->cpus_allowed;
cmd->val = 0;
- set_cpus_allowed(current, cmd->mask);
+ set_cpus_allowed_ptr(current, &cmd->mask);
do_drv_read(cmd);
- set_cpus_allowed(current, saved_mask);
+ set_cpus_allowed_ptr(current, &saved_mask);
}
static void drv_write(struct drv_cmd *cmd)
@@ -203,30 +203,30 @@ static void drv_write(struct drv_cmd *cmd)
unsigned int i;
for_each_cpu_mask(i, cmd->mask) {
- set_cpus_allowed(current, cpumask_of_cpu(i));
+ set_cpus_allowed_ptr(current, &cpumask_of_cpu(i));
do_drv_write(cmd);
}
- set_cpus_allowed(current, saved_mask);
+ set_cpus_allowed_ptr(current, &saved_mask);
return;
}
-static u32 get_cur_val(cpumask_t mask)
+static u32 get_cur_val(const cpumask_t *mask)
{
struct acpi_processor_performance *perf;
struct drv_cmd cmd;
- if (unlikely(cpus_empty(mask)))
+ if (unlikely(cpus_empty(*mask)))
return 0;
- switch (per_cpu(drv_data, first_cpu(mask))->cpu_feature) {
+ switch (per_cpu(drv_data, first_cpu(*mask))->cpu_feature) {
case SYSTEM_INTEL_MSR_CAPABLE:
cmd.type = SYSTEM_INTEL_MSR_CAPABLE;
cmd.addr.msr.reg = MSR_IA32_PERF_STATUS;
break;
case SYSTEM_IO_CAPABLE:
cmd.type = SYSTEM_IO_CAPABLE;
- perf = per_cpu(drv_data, first_cpu(mask))->acpi_data;
+ perf = per_cpu(drv_data, first_cpu(*mask))->acpi_data;
cmd.addr.io.port = perf->control_register.address;
cmd.addr.io.bit_width = perf->control_register.bit_width;
break;
@@ -234,7 +234,7 @@ static u32 get_cur_val(cpumask_t mask)
return 0;
}
- cmd.mask = mask;
+ cmd.mask = *mask;
drv_read(&cmd);
@@ -271,7 +271,7 @@ static unsigned int get_measured_perf(unsigned int cpu)
unsigned int retval;
saved_mask = current->cpus_allowed;
- set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
if (get_cpu() != cpu) {
/* We were not able to run on requested processor */
put_cpu();
@@ -329,7 +329,7 @@ static unsigned int get_measured_perf(unsigned int cpu)
retval = per_cpu(drv_data, cpu)->max_freq * perf_percent / 100;
put_cpu();
- set_cpus_allowed(current, saved_mask);
+ set_cpus_allowed_ptr(current, &saved_mask);
dprintk("cpu %d: performance percent %d\n", cpu, perf_percent);
return retval;
@@ -347,13 +347,13 @@ static unsigned int get_cur_freq_on_cpu(unsigned int cpu)
return 0;
}
- freq = extract_freq(get_cur_val(cpumask_of_cpu(cpu)), data);
+ freq = extract_freq(get_cur_val(&cpumask_of_cpu(cpu)), data);
dprintk("cur freq = %u\n", freq);
return freq;
}
-static unsigned int check_freqs(cpumask_t mask, unsigned int freq,
+static unsigned int check_freqs(const cpumask_t *mask, unsigned int freq,
struct acpi_cpufreq_data *data)
{
unsigned int cur_freq;
@@ -449,7 +449,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
drv_write(&cmd);
if (acpi_pstate_strict) {
- if (!check_freqs(cmd.mask, freqs.new, data)) {
+ if (!check_freqs(&cmd.mask, freqs.new, data)) {
dprintk("acpi_cpufreq_target failed (%d)\n",
policy->cpu);
return -EAGAIN;
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index c99d59d8ef2..46d4034d9f3 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -478,12 +478,12 @@ static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvi
static int check_supported_cpu(unsigned int cpu)
{
- cpumask_t oldmask = CPU_MASK_ALL;
+ cpumask_t oldmask;
u32 eax, ebx, ecx, edx;
unsigned int rc = 0;
oldmask = current->cpus_allowed;
- set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
if (smp_processor_id() != cpu) {
printk(KERN_ERR PFX "limiting to cpu %u failed\n", cpu);
@@ -528,7 +528,7 @@ static int check_supported_cpu(unsigned int cpu)
rc = 1;
out:
- set_cpus_allowed(current, oldmask);
+ set_cpus_allowed_ptr(current, &oldmask);
return rc;
}
@@ -1015,7 +1015,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i
/* Driver entry point to switch to the target frequency */
static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsigned relation)
{
- cpumask_t oldmask = CPU_MASK_ALL;
+ cpumask_t oldmask;
struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
u32 checkfid;
u32 checkvid;
@@ -1030,7 +1030,7 @@ 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));
+ set_cpus_allowed_ptr(current, &cpumask_of_cpu(pol->cpu));
if (smp_processor_id() != pol->cpu) {
printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
@@ -1085,7 +1085,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
ret = 0;
err_out:
- set_cpus_allowed(current, oldmask);
+ set_cpus_allowed_ptr(current, &oldmask);
return ret;
}
@@ -1104,7 +1104,7 @@ static int powernowk8_verify(struct cpufreq_policy *pol)
static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
{
struct powernow_k8_data *data;
- cpumask_t oldmask = CPU_MASK_ALL;
+ cpumask_t oldmask;
int rc;
if (!cpu_online(pol->cpu))
@@ -1145,7 +1145,7 @@ static int __cpuinit 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));
+ set_cpus_allowed_ptr(current, &cpumask_of_cpu(pol->cpu));
if (smp_processor_id() != pol->cpu) {
printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
@@ -1164,7 +1164,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
fidvid_msr_init();
/* run on any CPU again */
- set_cpus_allowed(current, oldmask);
+ set_cpus_allowed_ptr(current, &oldmask);
if (cpu_family == CPU_HW_PSTATE)
pol->cpus = cpumask_of_cpu(pol->cpu);
@@ -1205,7 +1205,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
return 0;
err_out:
- set_cpus_allowed(current, oldmask);
+ set_cpus_allowed_ptr(current, &oldmask);
powernow_k8_cpu_exit_acpi(data);
kfree(data);
@@ -1242,10 +1242,11 @@ static unsigned int powernowk8_get (unsigned int cpu)
if (!data)
return -EINVAL;
- set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
if (smp_processor_id() != cpu) {
- printk(KERN_ERR PFX "limiting to CPU %d failed in powernowk8_get\n", cpu);
- set_cpus_allowed(current, oldmask);
+ printk(KERN_ERR PFX
+ "limiting to CPU %d failed in powernowk8_get\n", cpu);
+ set_cpus_allowed_ptr(current, &oldmask);
return 0;
}
@@ -1253,13 +1254,14 @@ static unsigned int powernowk8_get (unsigned int cpu)
goto out;
if (cpu_family == CPU_HW_PSTATE)
- khz = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
+ khz = find_khz_freq_from_pstate(data->powernow_table,
+ data->currpstate);
else
khz = find_khz_freq_from_fid(data->currfid);
out:
- set_cpus_allowed(current, oldmask);
+ set_cpus_allowed_ptr(current, &oldmask);
return khz;
}
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
index 3031f119619..908dd347c67 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -315,7 +315,7 @@ static unsigned int get_cur_freq(unsigned int cpu)
cpumask_t saved_mask;
saved_mask = current->cpus_allowed;
- set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
if (smp_processor_id() != cpu)
return 0;
@@ -333,7 +333,7 @@ static unsigned int get_cur_freq(unsigned int cpu)
clock_freq = extract_clock(l, cpu, 1);
}
- set_cpus_allowed(current, saved_mask);
+ set_cpus_allowed_ptr(current, &saved_mask);
return clock_freq;
}
@@ -487,7 +487,7 @@ static int centrino_target (struct cpufreq_policy *policy,
else
cpu_set(j, set_mask);
- set_cpus_allowed(current, set_mask);
+ set_cpus_allowed_ptr(current, &set_mask);
preempt_disable();
if (unlikely(!cpu_isset(smp_processor_id(), set_mask))) {
dprintk("couldn't limit to CPUs in this domain\n");
@@ -555,7 +555,8 @@ static int centrino_target (struct cpufreq_policy *policy,
if (!cpus_empty(covered_cpus)) {
for_each_cpu_mask(j, covered_cpus) {
- set_cpus_allowed(current, cpumask_of_cpu(j));
+ set_cpus_allowed_ptr(current,
+ &cpumask_of_cpu(j));
wrmsr(MSR_IA32_PERF_CTL, oldmsr, h);
}
}
@@ -569,12 +570,12 @@ static int centrino_target (struct cpufreq_policy *policy,
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
}
- set_cpus_allowed(current, saved_mask);
+ set_cpus_allowed_ptr(current, &saved_mask);
return 0;
migrate_end:
preempt_enable();
- set_cpus_allowed(current, saved_mask);
+ set_cpus_allowed_ptr(current, &saved_mask);
return 0;
}
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
index 14d68aa301e..1b50244b1fd 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
@@ -229,22 +229,22 @@ static unsigned int speedstep_detect_chipset (void)
return 0;
}
-static unsigned int _speedstep_get(cpumask_t cpus)
+static unsigned int _speedstep_get(const cpumask_t *cpus)
{
unsigned int speed;
cpumask_t cpus_allowed;
cpus_allowed = current->cpus_allowed;
- set_cpus_allowed(current, cpus);
+ set_cpus_allowed_ptr(current, cpus);
speed = speedstep_get_processor_frequency(speedstep_processor);
- set_cpus_allowed(current, cpus_allowed);
+ set_cpus_allowed_ptr(current, &cpus_allowed);
dprintk("detected %u kHz as current frequency\n", speed);
return speed;
}
static unsigned int speedstep_get(unsigned int cpu)
{
- return _speedstep_get(cpumask_of_cpu(cpu));
+ return _speedstep_get(&cpumask_of_cpu(cpu));
}
/**
@@ -267,7 +267,7 @@ static int speedstep_target (struct cpufreq_policy *policy,
if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0], target_freq, relation, &newstate))
return -EINVAL;
- freqs.old = _speedstep_get(policy->cpus);
+ freqs.old = _speedstep_get(&policy->cpus);
freqs.new = speedstep_freqs[newstate].frequency;
freqs.cpu = policy->cpu;
@@ -285,12 +285,12 @@ static int speedstep_target (struct cpufreq_policy *policy,
}
/* switch to physical CPU where state is to be changed */
- set_cpus_allowed(current, policy->cpus);
+ set_cpus_allowed_ptr(current, &policy->cpus);
speedstep_set_state(newstate);
/* allow to be run on all CPUs */
- set_cpus_allowed(current, cpus_allowed);
+ set_cpus_allowed_ptr(current, &cpus_allowed);
for_each_cpu_mask(i, policy->cpus) {
freqs.cpu = i;
@@ -326,7 +326,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
#endif
cpus_allowed = current->cpus_allowed;
- set_cpus_allowed(current, policy->cpus);
+ set_cpus_allowed_ptr(current, &policy->cpus);
/* detect low and high frequency and transition latency */
result = speedstep_get_freqs(speedstep_processor,
@@ -334,12 +334,12 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
&speedstep_freqs[SPEEDSTEP_HIGH].frequency,
&policy->cpuinfo.transition_latency,
&speedstep_set_state);
- set_cpus_allowed(current, cpus_allowed);
+ set_cpus_allowed_ptr(current, &cpus_allowed);
if (result)
return result;
/* get current speed setting */
- speed = _speedstep_get(policy->cpus);
+ speed = _speedstep_get(&policy->cpus);
if (!speed)
return -EIO;
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 1b889860eb7..26d615dcb14 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -129,7 +129,7 @@ struct _cpuid4_info {
union _cpuid4_leaf_ebx ebx;
union _cpuid4_leaf_ecx ecx;
unsigned long size;
- cpumask_t shared_cpu_map;
+ cpumask_t shared_cpu_map; /* future?: only cpus/node is needed */
};
unsigned short num_cache_leaves;
@@ -451,8 +451,8 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
}
/* pointer to _cpuid4_info array (for each cache leaf) */
-static struct _cpuid4_info *cpuid4_info[NR_CPUS];
-#define CPUID4_INFO_IDX(x,y) (&((cpuid4_info[x])[y]))
+static DEFINE_PER_CPU(struct _cpuid4_info *, cpuid4_info);
+#define CPUID4_INFO_IDX(x, y) (&((per_cpu(cpuid4_info, x))[y]))
#ifdef CONFIG_SMP
static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
@@ -474,7 +474,7 @@ static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
if (cpu_data(i).apicid >> index_msb ==
c->apicid >> index_msb) {
cpu_set(i, this_leaf->shared_cpu_map);
- if (i != cpu && cpuid4_info[i]) {
+ if (i != cpu && per_cpu(cpuid4_info, i)) {
sibling_leaf = CPUID4_INFO_IDX(i, index);
cpu_set(cpu, sibling_leaf->shared_cpu_map);
}
@@ -505,8 +505,8 @@ static void __cpuinit free_cache_attributes(unsigned int cpu)
for (i = 0; i < num_cache_leaves; i++)
cache_remove_shared_cpu_map(cpu, i);
- kfree(cpuid4_info[cpu]);
- cpuid4_info[cpu] = NULL;
+ kfree(per_cpu(cpuid4_info, cpu));
+ per_cpu(cpuid4_info, cpu) = NULL;
}
static int __cpuinit detect_cache_attributes(unsigned int cpu)
@@ -519,13 +519,13 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
if (num_cache_leaves == 0)
return -ENOENT;
- cpuid4_info[cpu] = kzalloc(
+ per_cpu(cpuid4_info, cpu) = kzalloc(
sizeof(struct _cpuid4_info) * num_cache_leaves, GFP_KERNEL);
- if (cpuid4_info[cpu] == NULL)
+ if (per_cpu(cpuid4_info, cpu) == NULL)
return -ENOMEM;
oldmask = current->cpus_allowed;
- retval = set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ retval = set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
if (retval)
goto out;
@@ -542,12 +542,12 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
}
cache_shared_cpu_map_setup(cpu, j);
}
- set_cpus_allowed(current, oldmask);
+ set_cpus_allowed_ptr(current, &oldmask);
out:
if (retval) {
- kfree(cpuid4_info[cpu]);
- cpuid4_info[cpu] = NULL;
+ kfree(per_cpu(cpuid4_info, cpu));
+ per_cpu(cpuid4_info, cpu) = NULL;
}
return retval;
@@ -561,7 +561,7 @@ out:
extern struct sysdev_class cpu_sysdev_class; /* from drivers/base/cpu.c */
/* pointer to kobject for cpuX/cache */
-static struct kobject * cache_kobject[NR_CPUS];
+static DEFINE_PER_CPU(struct kobject *, cache_kobject);
struct _index_kobject {
struct kobject kobj;
@@ -570,8 +570,8 @@ struct _index_kobject {
};
/* pointer to array of kobjects for cpuX/cache/indexY */
-static struct _index_kobject *index_kobject[NR_CPUS];
-#define INDEX_KOBJECT_PTR(x,y) (&((index_kobject[x])[y]))
+static DEFINE_PER_CPU(struct _index_kobject *, index_kobject);
+#define INDEX_KOBJECT_PTR(x, y) (&((per_cpu(index_kobject, x))[y]))
#define show_one_plus(file_name, object, val) \
static ssize_t show_##file_name \
@@ -591,11 +591,32 @@ static ssize_t show_size(struct _cpuid4_info *this_leaf, char *buf)
return sprintf (buf, "%luK\n", this_leaf->size / 1024);
}
-static ssize_t show_shared_cpu_map(struct _cpuid4_info *this_leaf, char *buf)
+static ssize_t show_shared_cpu_map_func(struct _cpuid4_info *this_leaf,
+ int type, char *buf)
{
- char mask_str[NR_CPUS];
- cpumask_scnprintf(mask_str, NR_CPUS, this_leaf->shared_cpu_map);
- return sprintf(buf, "%s\n", mask_str);
+ ptrdiff_t len = PTR_ALIGN(buf + PAGE_SIZE - 1, PAGE_SIZE) - buf;
+ int n = 0;
+
+ if (len > 1) {
+ cpumask_t *mask = &this_leaf->shared_cpu_map;
+
+ n = type?
+ cpulist_scnprintf(buf, len-2, *mask):
+ cpumask_scnprintf(buf, len-2, *mask);
+ buf[n++] = '\n';
+ buf[n] = '\0';
+ }
+ return n;
+}
+
+static inline ssize_t show_shared_cpu_map(struct _cpuid4_info *leaf, char *buf)
+{
+ return show_shared_cpu_map_func(leaf, 0, buf);
+}
+
+static inline ssize_t show_shared_cpu_list(struct _cpuid4_info *leaf, char *buf)
+{
+ return show_shared_cpu_map_func(leaf, 1, buf);
}
static ssize_t show_type(struct _cpuid4_info *this_leaf, char *buf) {
@@ -633,6 +654,7 @@ define_one_ro(ways_of_associativity);
define_one_ro(number_of_sets);
define_one_ro(size);
define_one_ro(shared_cpu_map);
+define_one_ro(shared_cpu_list);
static struct attribute * default_attrs[] = {
&type.attr,
@@ -643,6 +665,7 @@ static struct attribute * default_attrs[] = {
&number_of_sets.attr,
&size.attr,
&shared_cpu_map.attr,
+ &shared_cpu_list.attr,
NULL
};
@@ -684,10 +707,10 @@ static struct kobj_type ktype_percpu_entry = {
static void __cpuinit cpuid4_cache_sysfs_exit(unsigned int cpu)
{
- kfree(cache_kobject[cpu]);
- kfree(index_kobject[cpu]);
- cache_kobject[cpu] = NULL;
- index_kobject[cpu] = NULL;
+ kfree(per_cpu(cache_kobject, cpu));
+ kfree(per_cpu(index_kobject, cpu));
+ per_cpu(cache_kobject, cpu) = NULL;
+ per_cpu(index_kobject, cpu) = NULL;
free_cache_attributes(cpu);
}
@@ -703,13 +726,14 @@ static int __cpuinit cpuid4_cache_sysfs_init(unsigned int cpu)
return err;
/* Allocate all required memory */
- cache_kobject[cpu] = kzalloc(sizeof(struct kobject), GFP_KERNEL);
- if (unlikely(cache_kobject[cpu] == NULL))
+ per_cpu(cache_kobject, cpu) =
+ kzalloc(sizeof(struct kobject), GFP_KERNEL);
+ if (unlikely(per_cpu(cache_kobject, cpu) == NULL))
goto err_out;
- index_kobject[cpu] = kzalloc(
+ per_cpu(index_kobject, cpu) = kzalloc(
sizeof(struct _index_kobject ) * num_cache_leaves, GFP_KERNEL);
- if (unlikely(index_kobject[cpu] == NULL))
+ if (unlikely(per_cpu(index_kobject, cpu) == NULL))
goto err_out;
return 0;
@@ -733,7 +757,8 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
if (unlikely(retval < 0))
return retval;
- retval = kobject_init_and_add(cache_kobject[cpu], &ktype_percpu_entry,
+ retval = kobject_init_and_add(per_cpu(cache_kobject, cpu),
+ &ktype_percpu_entry,
&sys_dev->kobj, "%s", "cache");
if (retval < 0) {
cpuid4_cache_sysfs_exit(cpu);
@@ -745,13 +770,14 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
this_object->cpu = cpu;
this_object->index = i;
retval = kobject_init_and_add(&(this_object->kobj),
- &ktype_cache, cache_kobject[cpu],
+ &ktype_cache,
+ per_cpu(cache_kobject, cpu),
"index%1lu", i);
if (unlikely(retval)) {
for (j = 0; j < i; j++) {
kobject_put(&(INDEX_KOBJECT_PTR(cpu,j)->kobj));
}
- kobject_put(cache_kobject[cpu]);
+ kobject_put(per_cpu(cache_kobject, cpu));
cpuid4_cache_sysfs_exit(cpu);
break;
}
@@ -760,7 +786,7 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
if (!retval)
cpu_set(cpu, cache_dev_map);
- kobject_uevent(cache_kobject[cpu], KOBJ_ADD);
+ kobject_uevent(per_cpu(cache_kobject, cpu), KOBJ_ADD);
return retval;
}
@@ -769,7 +795,7 @@ static void __cpuinit cache_remove_dev(struct sys_device * sys_dev)
unsigned int cpu = sys_dev->id;
unsigned long i;
- if (cpuid4_info[cpu] == NULL)
+ if (per_cpu(cpuid4_info, cpu) == NULL)
return;
if (!cpu_isset(cpu, cache_dev_map))
return;
@@ -777,7 +803,7 @@ static void __cpuinit cache_remove_dev(struct sys_device * sys_dev)
for (i = 0; i < num_cache_leaves; i++)
kobject_put(&(INDEX_KOBJECT_PTR(cpu,i)->kobj));
- kobject_put(cache_kobject[cpu]);
+ kobject_put(per_cpu(cache_kobject, cpu));
cpuid4_cache_sysfs_exit(cpu);
}
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 32671da8184..7c9a813e119 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -251,18 +251,18 @@ struct threshold_attr {
ssize_t(*store) (struct threshold_block *, const char *, size_t count);
};
-static cpumask_t affinity_set(unsigned int cpu)
+static void affinity_set(unsigned int cpu, cpumask_t *oldmask,
+ cpumask_t *newmask)
{
- cpumask_t oldmask = current->cpus_allowed;
- cpumask_t newmask = CPU_MASK_NONE;
- cpu_set(cpu, newmask);
- set_cpus_allowed(current, newmask);
- return oldmask;
+ *oldmask = current->cpus_allowed;
+ cpus_clear(*newmask);
+ cpu_set(cpu, *newmask);
+ set_cpus_allowed_ptr(current, newmask);
}
-static void affinity_restore(cpumask_t oldmask)
+static void affinity_restore(const cpumask_t *oldmask)
{
- set_cpus_allowed(current, oldmask);
+ set_cpus_allowed_ptr(current, oldmask);
}
#define SHOW_FIELDS(name) \
@@ -277,15 +277,15 @@ static ssize_t store_interrupt_enable(struct threshold_block *b,
const char *buf, size_t count)
{
char *end;
- cpumask_t oldmask;
+ cpumask_t oldmask, newmask;
unsigned long new = simple_strtoul(buf, &end, 0);
if (end == buf)
return -EINVAL;
b->interrupt_enable = !!new;
- oldmask = affinity_set(b->cpu);
+ affinity_set(b->cpu, &oldmask, &newmask);
threshold_restart_bank(b, 0, 0);
- affinity_restore(oldmask);
+ affinity_restore(&oldmask);
return end - buf;
}
@@ -294,7 +294,7 @@ static ssize_t store_threshold_limit(struct threshold_block *b,
const char *buf, size_t count)
{
char *end;
- cpumask_t oldmask;
+ cpumask_t oldmask, newmask;
u16 old;
unsigned long new = simple_strtoul(buf, &end, 0);
if (end == buf)
@@ -306,9 +306,9 @@ static ssize_t store_threshold_limit(struct threshold_block *b,
old = b->threshold_limit;
b->threshold_limit = new;
- oldmask = affinity_set(b->cpu);
+ affinity_set(b->cpu, &oldmask, &newmask);
threshold_restart_bank(b, 0, old);
- affinity_restore(oldmask);
+ affinity_restore(&oldmask);
return end - buf;
}
@@ -316,10 +316,10 @@ static ssize_t store_threshold_limit(struct threshold_block *b,
static ssize_t show_error_count(struct threshold_block *b, char *buf)
{
u32 high, low;
- cpumask_t oldmask;
- oldmask = affinity_set(b->cpu);
+ cpumask_t oldmask, newmask;
+ affinity_set(b->cpu, &oldmask, &newmask);
rdmsr(b->address, low, high);
- affinity_restore(oldmask);
+ affinity_restore(&oldmask);
return sprintf(buf, "%x\n",
(high & 0xFFF) - (THRESHOLD_MAX - b->threshold_limit));
}
@@ -327,10 +327,10 @@ static ssize_t show_error_count(struct threshold_block *b, char *buf)
static ssize_t store_error_count(struct threshold_block *b,
const char *buf, size_t count)
{
- cpumask_t oldmask;
- oldmask = affinity_set(b->cpu);
+ cpumask_t oldmask, newmask;
+ affinity_set(b->cpu, &oldmask, &newmask);
threshold_restart_bank(b, 1, 0);
- affinity_restore(oldmask);
+ affinity_restore(&oldmask);
return 1;
}
@@ -468,7 +468,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
{
int i, err = 0;
struct threshold_bank *b = NULL;
- cpumask_t oldmask = CPU_MASK_NONE;
+ cpumask_t oldmask, newmask;
char name[32];
sprintf(name, "threshold_bank%i", bank);
@@ -519,10 +519,10 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
per_cpu(threshold_banks, cpu)[bank] = b;
- oldmask = affinity_set(cpu);
+ affinity_set(cpu, &oldmask, &newmask);
err = allocate_threshold_blocks(cpu, bank, 0,
MSR_IA32_MC0_MISC + bank * 4);
- affinity_restore(oldmask);
+ affinity_restore(&oldmask);
if (err)
goto out_free;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-24 19:22:28 +0000