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Index of /anon_sym/anon/sys/dev/char/4:21/subsystem/tty63
Index of /anon_sym/anon/sys/dev/char/4:21/subsystem/tty63
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475Á¾É Û !/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Virtual PTP 1588 clock for use with KVM guests
*
* Copyright (C) 2017 Red Hat Inc.
*/
#ifndef _PTP_KVM_H_
#define _PTP_KVM_H_
#include
#include
struct timespec64;
int kvm_arch_ptp_init(void);
int kvm_arch_ptp_get_clock(struct timespec64 *ts);
int kvm_arch_ptp_get_crosststamp(u64 *cycle,
struct timespec64 *tspec, enum clocksource_ids *cs_id);
#endif /* _PTP_KVM_H_ */
#ˆÂÆ
ƒq =Á¾É #/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_PERCPU_COUNTER_H
#define _LINUX_PERCPU_COUNTER_H
/*
* A simple "approximate counter" for use in ext2 and ext3 superblocks.
*
* WARNING: these things are HUGE. 4 kbytes per counter on 32-way P4.
*/
#include
#include
#include
#include
#include
#include
/* percpu_counter batch for local add or sub */
#define PERCPU_COUNTER_LOCAL_BATCH INT_MAX
#ifdef CONFIG_SMP
struct percpu_counter {
raw_spinlock_t lock;
s64 count;
#ifdef CONFIG_HOTPLUG_CPU
struct list_head list; /* All percpu_counters are on a list */
#endif
s32 __percpu *counters;
};
extern int percpu_counter_batch;
int __percpu_counter_init_many(struct percpu_counter *fbc, s64 amount,
gfp_t gfp, u32 nr_counters,
struct lock_class_key *key);
#define percpu_counter_init_many(fbc, value, gfp, nr_counters) \
({ \
static struct lock_class_key __key; \
\
__percpu_counter_init_many(fbc, value, gfp, nr_counters,\
&__key); \
})
#define percpu_counter_init(fbc, value, gfp) \
percpu_counter_init_many(fbc, value, gfp, 1)
void percpu_counter_destroy_many(struct percpu_counter *fbc, u32 nr_counters);
static inline void percpu_counter_destroy(struct percpu_counter *fbc)
{
percpu_counter_destroy_many(fbc, 1);
}
void percpu_counter_set(struct percpu_counter *fbc, s64 amount);
void percpu_counter_add_batch(struct percpu_counter *fbc, s64 amount,
s32 batch);
s64 __percpu_counter_sum(struct percpu_counter *fbc);
s64 percpu_counter_sum_all(struct percpu_counter *fbc);
int __percpu_counter_compare(struct percpu_counter *fbc, s64 rhs, s32 batch);
void percpu_counter_sync(struct percpu_counter *fbc);
static inline int percpu_counter_compare(struct percpu_counter *fbc, s64 rhs)
{
return __percpu_counter_compare(fbc, rhs, percpu_counter_batch);
}
static inline void percpu_counter_add(struct percpu_counter *fbc, s64 amount)
{
percpu_counter_add_batch(fbc, amount, percpu