diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/padata.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/padata.h | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/ANDROID_3.4.5/include/linux/padata.h b/ANDROID_3.4.5/include/linux/padata.h deleted file mode 100644 index 86292bee..00000000 --- a/ANDROID_3.4.5/include/linux/padata.h +++ /dev/null @@ -1,190 +0,0 @@ -/* - * padata.h - header for the padata parallelization interface - * - * Copyright (C) 2008, 2009 secunet Security Networks AG - * Copyright (C) 2008, 2009 Steffen Klassert <steffen.klassert@secunet.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#ifndef PADATA_H -#define PADATA_H - -#include <linux/workqueue.h> -#include <linux/spinlock.h> -#include <linux/list.h> -#include <linux/timer.h> -#include <linux/notifier.h> -#include <linux/kobject.h> - -#define PADATA_CPU_SERIAL 0x01 -#define PADATA_CPU_PARALLEL 0x02 - -/** - * struct padata_priv - Embedded to the users data structure. - * - * @list: List entry, to attach to the padata lists. - * @pd: Pointer to the internal control structure. - * @cb_cpu: Callback cpu for serializatioon. - * @seq_nr: Sequence number of the parallelized data object. - * @info: Used to pass information from the parallel to the serial function. - * @parallel: Parallel execution function. - * @serial: Serial complete function. - */ -struct padata_priv { - struct list_head list; - struct parallel_data *pd; - int cb_cpu; - int info; - void (*parallel)(struct padata_priv *padata); - void (*serial)(struct padata_priv *padata); -}; - -/** - * struct padata_list - * - * @list: List head. - * @lock: List lock. - */ -struct padata_list { - struct list_head list; - spinlock_t lock; -}; - -/** -* struct padata_serial_queue - The percpu padata serial queue -* -* @serial: List to wait for serialization after reordering. -* @work: work struct for serialization. -* @pd: Backpointer to the internal control structure. -*/ -struct padata_serial_queue { - struct padata_list serial; - struct work_struct work; - struct parallel_data *pd; -}; - -/** - * struct padata_parallel_queue - The percpu padata parallel queue - * - * @parallel: List to wait for parallelization. - * @reorder: List to wait for reordering after parallel processing. - * @serial: List to wait for serialization after reordering. - * @pwork: work struct for parallelization. - * @swork: work struct for serialization. - * @pd: Backpointer to the internal control structure. - * @work: work struct for parallelization. - * @num_obj: Number of objects that are processed by this cpu. - * @cpu_index: Index of the cpu. - */ -struct padata_parallel_queue { - struct padata_list parallel; - struct padata_list reorder; - struct parallel_data *pd; - struct work_struct work; - atomic_t num_obj; - int cpu_index; -}; - -/** - * struct padata_cpumask - The cpumasks for the parallel/serial workers - * - * @pcpu: cpumask for the parallel workers. - * @cbcpu: cpumask for the serial (callback) workers. - */ -struct padata_cpumask { - cpumask_var_t pcpu; - cpumask_var_t cbcpu; -}; - -/** - * struct parallel_data - Internal control structure, covers everything - * that depends on the cpumask in use. - * - * @pinst: padata instance. - * @pqueue: percpu padata queues used for parallelization. - * @squeue: percpu padata queues used for serialuzation. - * @reorder_objects: Number of objects waiting in the reorder queues. - * @refcnt: Number of objects holding a reference on this parallel_data. - * @max_seq_nr: Maximal used sequence number. - * @cpumask: The cpumasks in use for parallel and serial workers. - * @lock: Reorder lock. - * @processed: Number of already processed objects. - * @timer: Reorder timer. - */ -struct parallel_data { - struct padata_instance *pinst; - struct padata_parallel_queue __percpu *pqueue; - struct padata_serial_queue __percpu *squeue; - atomic_t reorder_objects; - atomic_t refcnt; - struct padata_cpumask cpumask; - spinlock_t lock ____cacheline_aligned; - spinlock_t seq_lock; - unsigned int seq_nr; - unsigned int processed; - struct timer_list timer; -}; - -/** - * struct padata_instance - The overall control structure. - * - * @cpu_notifier: cpu hotplug notifier. - * @wq: The workqueue in use. - * @pd: The internal control structure. - * @cpumask: User supplied cpumasks for parallel and serial works. - * @cpumask_change_notifier: Notifiers chain for user-defined notify - * callbacks that will be called when either @pcpu or @cbcpu - * or both cpumasks change. - * @kobj: padata instance kernel object. - * @lock: padata instance lock. - * @flags: padata flags. - */ -struct padata_instance { - struct notifier_block cpu_notifier; - struct workqueue_struct *wq; - struct parallel_data *pd; - struct padata_cpumask cpumask; - struct blocking_notifier_head cpumask_change_notifier; - struct kobject kobj; - struct mutex lock; - u8 flags; -#define PADATA_INIT 1 -#define PADATA_RESET 2 -#define PADATA_INVALID 4 -}; - -extern struct padata_instance *padata_alloc_possible( - struct workqueue_struct *wq); -extern struct padata_instance *padata_alloc(struct workqueue_struct *wq, - const struct cpumask *pcpumask, - const struct cpumask *cbcpumask); -extern void padata_free(struct padata_instance *pinst); -extern int padata_do_parallel(struct padata_instance *pinst, - struct padata_priv *padata, int cb_cpu); -extern void padata_do_serial(struct padata_priv *padata); -extern int padata_set_cpumask(struct padata_instance *pinst, int cpumask_type, - cpumask_var_t cpumask); -extern int padata_set_cpumasks(struct padata_instance *pinst, - cpumask_var_t pcpumask, - cpumask_var_t cbcpumask); -extern int padata_add_cpu(struct padata_instance *pinst, int cpu, int mask); -extern int padata_remove_cpu(struct padata_instance *pinst, int cpu, int mask); -extern int padata_start(struct padata_instance *pinst); -extern void padata_stop(struct padata_instance *pinst); -extern int padata_register_cpumask_notifier(struct padata_instance *pinst, - struct notifier_block *nblock); -extern int padata_unregister_cpumask_notifier(struct padata_instance *pinst, - struct notifier_block *nblock); -#endif |