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author | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/base/cpu.c | |
parent | d14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff) | |
parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
download | linux-fsl-qoriq-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/base/cpu.c')
-rw-r--r-- | drivers/base/cpu.c | 105 |
1 files changed, 47 insertions, 58 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 958bd15..7036e8e 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -13,8 +13,11 @@ #include "base.h" +static struct sysdev_class_attribute *cpu_sysdev_class_attrs[]; + struct sysdev_class cpu_sysdev_class = { .name = "cpu", + .attrs = cpu_sysdev_class_attrs, }; EXPORT_SYMBOL(cpu_sysdev_class); @@ -76,34 +79,24 @@ void unregister_cpu(struct cpu *cpu) } #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE -static ssize_t cpu_probe_store(struct class *class, const char *buf, +static ssize_t cpu_probe_store(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t count) { return arch_cpu_probe(buf, count); } -static ssize_t cpu_release_store(struct class *class, const char *buf, +static ssize_t cpu_release_store(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t count) { return arch_cpu_release(buf, count); } -static CLASS_ATTR(probe, S_IWUSR, NULL, cpu_probe_store); -static CLASS_ATTR(release, S_IWUSR, NULL, cpu_release_store); - -int __init cpu_probe_release_init(void) -{ - int rc; - - rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj, - &class_attr_probe.attr); - if (!rc) - rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj, - &class_attr_release.attr); - - return rc; -} -device_initcall(cpu_probe_release_init); +static SYSDEV_ATTR(probe, S_IWUSR, NULL, cpu_probe_store); +static SYSDEV_ATTR(release, S_IWUSR, NULL, cpu_release_store); #endif /* CONFIG_ARCH_CPU_PROBE_RELEASE */ #else /* ... !CONFIG_HOTPLUG_CPU */ @@ -141,31 +134,39 @@ static SYSDEV_ATTR(crash_notes, 0400, show_crash_notes, NULL); /* * Print cpu online, possible, present, and system maps */ -static ssize_t print_cpus_map(char *buf, const struct cpumask *map) + +struct cpu_attr { + struct sysdev_class_attribute attr; + const struct cpumask *const * const map; +}; + +static ssize_t show_cpus_attr(struct sysdev_class *class, + struct sysdev_class_attribute *attr, + char *buf) { - int n = cpulist_scnprintf(buf, PAGE_SIZE-2, map); + struct cpu_attr *ca = container_of(attr, struct cpu_attr, attr); + int n = cpulist_scnprintf(buf, PAGE_SIZE-2, *(ca->map)); buf[n++] = '\n'; buf[n] = '\0'; return n; } -#define print_cpus_func(type) \ -static ssize_t print_cpus_##type(struct sysdev_class *class, char *buf) \ -{ \ - return print_cpus_map(buf, cpu_##type##_mask); \ -} \ -static struct sysdev_class_attribute attr_##type##_map = \ - _SYSDEV_CLASS_ATTR(type, 0444, print_cpus_##type, NULL) +#define _CPU_ATTR(name, map) \ + { _SYSDEV_CLASS_ATTR(name, 0444, show_cpus_attr, NULL), map } -print_cpus_func(online); -print_cpus_func(possible); -print_cpus_func(present); +/* Keep in sync with cpu_sysdev_class_attrs */ +static struct cpu_attr cpu_attrs[] = { + _CPU_ATTR(online, &cpu_online_mask), + _CPU_ATTR(possible, &cpu_possible_mask), + _CPU_ATTR(present, &cpu_present_mask), +}; /* * Print values for NR_CPUS and offlined cpus */ -static ssize_t print_cpus_kernel_max(struct sysdev_class *class, char *buf) +static ssize_t print_cpus_kernel_max(struct sysdev_class *class, + struct sysdev_class_attribute *attr, char *buf) { int n = snprintf(buf, PAGE_SIZE-2, "%d\n", NR_CPUS - 1); return n; @@ -175,7 +176,8 @@ static SYSDEV_CLASS_ATTR(kernel_max, 0444, print_cpus_kernel_max, NULL); /* arch-optional setting to enable display of offline cpus >= nr_cpu_ids */ unsigned int total_cpus; -static ssize_t print_cpus_offline(struct sysdev_class *class, char *buf) +static ssize_t print_cpus_offline(struct sysdev_class *class, + struct sysdev_class_attribute *attr, char *buf) { int n = 0, len = PAGE_SIZE-2; cpumask_var_t offline; @@ -204,29 +206,6 @@ static ssize_t print_cpus_offline(struct sysdev_class *class, char *buf) } static SYSDEV_CLASS_ATTR(offline, 0444, print_cpus_offline, NULL); -static struct sysdev_class_attribute *cpu_state_attr[] = { - &attr_online_map, - &attr_possible_map, - &attr_present_map, - &attr_kernel_max, - &attr_offline, -}; - -static int cpu_states_init(void) -{ - int i; - int err = 0; - - for (i = 0; i < ARRAY_SIZE(cpu_state_attr); i++) { - int ret; - ret = sysdev_class_create_file(&cpu_sysdev_class, - cpu_state_attr[i]); - if (!err) - err = ret; - } - return err; -} - /* * register_cpu - Setup a sysfs device for a CPU. * @cpu - cpu->hotpluggable field set to 1 will generate a control file in @@ -272,9 +251,6 @@ int __init cpu_dev_init(void) int err; err = sysdev_class_register(&cpu_sysdev_class); - if (!err) - err = cpu_states_init(); - #if defined(CONFIG_SCHED_MC) || defined(CONFIG_SCHED_SMT) if (!err) err = sched_create_sysfs_power_savings_entries(&cpu_sysdev_class); @@ -282,3 +258,16 @@ int __init cpu_dev_init(void) return err; } + +static struct sysdev_class_attribute *cpu_sysdev_class_attrs[] = { +#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE + &attr_probe, + &attr_release, +#endif + &cpu_attrs[0].attr, + &cpu_attrs[1].attr, + &cpu_attrs[2].attr, + &attr_kernel_max, + &attr_offline, + NULL +}; |