linux-stable/include/linux/irq_cpustat.h
Frederic Weisbecker 0fd7d86285 softirq/core: Consolidate default local_softirq_pending() implementations
Consolidate and optimize default softirq mask API implementations.
Per-CPU operations are expected to be faster and a few architectures
already rely on them to implement local_softirq_pending() and related
accessors/mutators. Those will be migrated to the new generic code.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/1525786706-22846-6-git-send-email-frederic@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-05-14 11:25:27 +02:00

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C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __irq_cpustat_h
#define __irq_cpustat_h
/*
* Contains default mappings for irq_cpustat_t, used by almost every
* architecture. Some arch (like s390) have per cpu hardware pages and
* they define their own mappings for irq_stat.
*
* Keith Owens <kaos@ocs.com.au> July 2000.
*/
/*
* Simple wrappers reducing source bloat. Define all irq_stat fields
* here, even ones that are arch dependent. That way we get common
* definitions instead of differing sets for each arch.
*/
#ifndef __ARCH_IRQ_STAT
DECLARE_PER_CPU_ALIGNED(irq_cpustat_t, irq_stat); /* defined in asm/hardirq.h */
#define __IRQ_STAT(cpu, member) (per_cpu(irq_stat.member, cpu))
#endif
/* arch dependent irq_stat fields */
#define nmi_count(cpu) __IRQ_STAT((cpu), __nmi_count) /* i386 */
#endif /* __irq_cpustat_h */