8a25a2fd12
This moves the 'cpu sysdev_class' over to a regular 'cpu' subsystem and converts the devices to regular devices. The sysdev drivers are implemented as subsystem interfaces now. After all sysdev classes are ported to regular driver core entities, the sysdev implementation will be entirely removed from the kernel. Userspace relies on events and generic sysfs subsystem infrastructure from sysdev devices, which are made available with this conversion. Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Borislav Petkov <bp@amd64.org> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Cc: Len Brown <lenb@kernel.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Dave Jones <davej@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
33 lines
1,012 B
C
33 lines
1,012 B
C
/*
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* cpuidle.h - The internal header file
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*/
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#ifndef __DRIVER_CPUIDLE_H
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#define __DRIVER_CPUIDLE_H
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#include <linux/device.h>
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/* For internal use only */
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extern struct cpuidle_governor *cpuidle_curr_governor;
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extern struct list_head cpuidle_governors;
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extern struct list_head cpuidle_detected_devices;
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extern struct mutex cpuidle_lock;
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extern spinlock_t cpuidle_driver_lock;
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extern int cpuidle_disabled(void);
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/* idle loop */
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extern void cpuidle_install_idle_handler(void);
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extern void cpuidle_uninstall_idle_handler(void);
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/* governors */
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extern int cpuidle_switch_governor(struct cpuidle_governor *gov);
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/* sysfs */
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extern int cpuidle_add_interface(struct device *dev);
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extern void cpuidle_remove_interface(struct device *dev);
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extern int cpuidle_add_state_sysfs(struct cpuidle_device *device);
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extern void cpuidle_remove_state_sysfs(struct cpuidle_device *device);
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extern int cpuidle_add_sysfs(struct device *dev);
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extern void cpuidle_remove_sysfs(struct device *dev);
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#endif /* __DRIVER_CPUIDLE_H */
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