they have been replaced by functions in /sys.
The deprecated files (and their replacements) include:
- /proc/acpi/processor/*/power (/sys/devices/system/cpu/*/cpuidle/*)
- /proc/acpi/processor/*/performance (/sys/devices/system/cpu/*/
- cpufreq/*)
/proc/acpi/processor/*/throttling (/sys/class/thermal/
cooling_device*/*)
This option has no effect on /proc/acpi/ files
static int acpi_processor_add(struct acpi_device *device);
static int acpi_processor_remove(struct acpi_device *device, int type);
-#ifdef CONFIG_ACPI_PROCFS
-static int acpi_processor_info_open_fs(struct inode *inode, struct file *file);
-#endif
static void acpi_processor_notify(struct acpi_device *device, u32 event);
static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu);
static int acpi_processor_handle_eject(struct acpi_processor *pr);
#define INSTALL_NOTIFY_HANDLER 1
#define UNINSTALL_NOTIFY_HANDLER 2
-#ifdef CONFIG_ACPI_PROCFS
-static const struct file_operations acpi_processor_info_fops = {
- .owner = THIS_MODULE,
- .open = acpi_processor_info_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif
DEFINE_PER_CPU(struct acpi_processor *, processors);
EXPORT_PER_CPU_SYMBOL(processors);
return result;
}
-/* --------------------------------------------------------------------------
- FS Interface (/proc)
- -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI_PROCFS
static struct proc_dir_entry *acpi_processor_dir = NULL;
-static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_processor *pr = seq->private;
-
-
- if (!pr)
- goto end;
-
- seq_printf(seq, "processor id: %d\n"
- "acpi id: %d\n"
- "bus mastering control: %s\n"
- "power management: %s\n"
- "throttling control: %s\n"
- "limit interface: %s\n",
- pr->id,
- pr->acpi_id,
- pr->flags.bm_control ? "yes" : "no",
- pr->flags.power ? "yes" : "no",
- pr->flags.throttling ? "yes" : "no",
- pr->flags.limit ? "yes" : "no");
-
- end:
- return 0;
-}
-
-static int acpi_processor_info_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_processor_info_seq_show,
- PDE(inode)->data);
-}
-
static int __cpuinit acpi_processor_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
return -ENODEV;
}
- /* 'info' [R] */
- entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO,
- S_IRUGO, acpi_device_dir(device),
- &acpi_processor_info_fops,
- acpi_driver_data(device));
- if (!entry)
- return -EIO;
-
/* 'throttling' [R/W] */
entry = proc_create_data(ACPI_PROCESSOR_FILE_THROTTLING,
S_IFREG | S_IRUGO | S_IWUSR,
acpi_driver_data(device));
if (!entry)
return -EIO;
-
- /* 'limit' [R/W] */
- entry = proc_create_data(ACPI_PROCESSOR_FILE_LIMIT,
- S_IFREG | S_IRUGO | S_IWUSR,
- acpi_device_dir(device),
- &acpi_processor_limit_fops,
- acpi_driver_data(device));
- if (!entry)
- return -EIO;
return 0;
}
static int acpi_processor_remove_fs(struct acpi_device *device)
{
if (acpi_device_dir(device)) {
- remove_proc_entry(ACPI_PROCESSOR_FILE_INFO,
- acpi_device_dir(device));
remove_proc_entry(ACPI_PROCESSOR_FILE_THROTTLING,
acpi_device_dir(device));
- remove_proc_entry(ACPI_PROCESSOR_FILE_LIMIT,
- acpi_device_dir(device));
remove_proc_entry(acpi_device_bid(device), acpi_processor_dir);
acpi_device_dir(device) = NULL;
}
return 0;
}
-#else
-static inline int acpi_processor_add_fs(struct acpi_device *device)
-{
- return 0;
-}
-static inline int acpi_processor_remove_fs(struct acpi_device *device)
-{
- return 0;
-}
-#endif
/* --------------------------------------------------------------------------
Driver Interface
memset(&errata, 0, sizeof(errata));
-#ifdef CONFIG_ACPI_PROCFS
acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
if (!acpi_processor_dir)
return -ENOMEM;
-#endif
if (!cpuidle_register_driver(&acpi_idle_driver)) {
printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n",
out_cpuidle:
cpuidle_unregister_driver(&acpi_idle_driver);
-#ifdef CONFIG_ACPI_PROCFS
remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
-#endif
return result;
}
cpuidle_unregister_driver(&acpi_idle_driver);
-#ifdef CONFIG_ACPI_PROCFS
remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
-#endif
return;
}
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/slab.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/moduleparam.h>
static unsigned int latency_factor __read_mostly = 2;
module_param(latency_factor, uint, 0644);
-#ifdef CONFIG_ACPI_PROCFS
-static u64 us_to_pm_timer_ticks(s64 t)
-{
- return div64_u64(t * PM_TIMER_FREQUENCY, 1000000);
-}
-#endif
-
/*
* IBM ThinkPad R40e crashes mysteriously when going into C2 or C3.
* For now disable this. Probably a bug somewhere else.
return 0;
}
-#ifdef CONFIG_ACPI_PROCFS
-static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_processor *pr = seq->private;
- unsigned int i;
-
-
- if (!pr)
- goto end;
-
- seq_printf(seq, "active state: C%zd\n"
- "max_cstate: C%d\n"
- "maximum allowed latency: %d usec\n",
- pr->power.state ? pr->power.state - pr->power.states : 0,
- max_cstate, pm_qos_request(PM_QOS_CPU_DMA_LATENCY));
-
- seq_puts(seq, "states:\n");
-
- for (i = 1; i <= pr->power.count; i++) {
- seq_printf(seq, " %cC%d: ",
- (&pr->power.states[i] ==
- pr->power.state ? '*' : ' '), i);
-
- if (!pr->power.states[i].valid) {
- seq_puts(seq, "<not supported>\n");
- continue;
- }
-
- switch (pr->power.states[i].type) {
- case ACPI_STATE_C1:
- seq_printf(seq, "type[C1] ");
- break;
- case ACPI_STATE_C2:
- seq_printf(seq, "type[C2] ");
- break;
- case ACPI_STATE_C3:
- seq_printf(seq, "type[C3] ");
- break;
- default:
- seq_printf(seq, "type[--] ");
- break;
- }
-
- seq_puts(seq, "promotion[--] ");
-
- seq_puts(seq, "demotion[--] ");
-
- seq_printf(seq, "latency[%03d] usage[%08d] duration[%020Lu]\n",
- pr->power.states[i].latency,
- pr->power.states[i].usage,
- us_to_pm_timer_ticks(pr->power.states[i].time));
- }
-
- end:
- return 0;
-}
-
-static int acpi_processor_power_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_processor_power_seq_show,
- PDE(inode)->data);
-}
-
-static const struct file_operations acpi_processor_power_fops = {
- .owner = THIS_MODULE,
- .open = acpi_processor_power_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif
-
/**
* acpi_idle_bm_check - checks if bus master activity was detected
*/
{
acpi_status status = 0;
static int first_run;
-#ifdef CONFIG_ACPI_PROCFS
- struct proc_dir_entry *entry = NULL;
-#endif
if (boot_option_idle_override)
return 0;
if (cpuidle_register_device(&pr->power.dev))
return -EIO;
}
-#ifdef CONFIG_ACPI_PROCFS
- /* 'power' [R] */
- entry = proc_create_data(ACPI_PROCESSOR_FILE_POWER,
- S_IRUGO, acpi_device_dir(device),
- &acpi_processor_power_fops,
- acpi_driver_data(device));
- if (!entry)
- return -EIO;
-#endif
return 0;
}
cpuidle_unregister_device(&pr->power.dev);
pr->flags.power_setup_done = 0;
-#ifdef CONFIG_ACPI_PROCFS
- if (acpi_device_dir(device))
- remove_proc_entry(ACPI_PROCESSOR_FILE_POWER,
- acpi_device_dir(device));
-#endif
-
return 0;
}
#include <linux/module.h>
#include <linux/init.h>
#include <linux/cpufreq.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
#include <linux/sysdev.h>
#include <asm/uaccess.h>
.get_cur_state = processor_get_cur_state,
.set_cur_state = processor_set_cur_state,
};
-
-/* /proc interface */
-#ifdef CONFIG_ACPI_PROCFS
-static int acpi_processor_limit_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_processor *pr = seq->private;
-
- if (!pr)
- goto end;
-
- if (!pr->flags.limit) {
- seq_puts(seq, "<not supported>\n");
- goto end;
- }
-
- seq_printf(seq, "active limit: P%d:T%d\n"
- "user limit: P%d:T%d\n"
- "thermal limit: P%d:T%d\n",
- pr->limit.state.px, pr->limit.state.tx,
- pr->limit.user.px, pr->limit.user.tx,
- pr->limit.thermal.px, pr->limit.thermal.tx);
-
- end:
- return 0;
-}
-
-static int acpi_processor_limit_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_processor_limit_seq_show,
- PDE(inode)->data);
-}
-
-static ssize_t acpi_processor_write_limit(struct file * file,
- const char __user * buffer,
- size_t count, loff_t * data)
-{
- int result = 0;
- struct seq_file *m = file->private_data;
- struct acpi_processor *pr = m->private;
- char limit_string[25] = { '\0' };
- int px = 0;
- int tx = 0;
-
-
- if (!pr || (count > sizeof(limit_string) - 1)) {
- return -EINVAL;
- }
-
- if (copy_from_user(limit_string, buffer, count)) {
- return -EFAULT;
- }
-
- limit_string[count] = '\0';
-
- if (sscanf(limit_string, "%d:%d", &px, &tx) != 2) {
- printk(KERN_ERR PREFIX "Invalid data format\n");
- return -EINVAL;
- }
-
- if (pr->flags.throttling) {
- if ((tx < 0) || (tx > (pr->throttling.state_count - 1))) {
- printk(KERN_ERR PREFIX "Invalid tx\n");
- return -EINVAL;
- }
- pr->limit.user.tx = tx;
- }
-
- result = acpi_processor_apply_limit(pr);
-
- return count;
-}
-
-const struct file_operations acpi_processor_limit_fops = {
- .owner = THIS_MODULE,
- .open = acpi_processor_limit_open_fs,
- .read = seq_read,
- .write = acpi_processor_write_limit,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif
}
/* proc interface */
-#ifdef CONFIG_ACPI_PROCFS
static int acpi_processor_throttling_seq_show(struct seq_file *seq,
void *offset)
{
.llseek = seq_lseek,
.release = single_release,
};
-#endif
/* in processor_thermal.c */
int acpi_processor_get_limit_info(struct acpi_processor *pr);
-extern const struct file_operations acpi_processor_limit_fops;
extern struct thermal_cooling_device_ops processor_cooling_ops;
#ifdef CONFIG_CPU_FREQ
void acpi_thermal_cpufreq_init(void);
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