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0fd7d86285
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>
29 lines
845 B
C
29 lines
845 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __irq_cpustat_h
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#define __irq_cpustat_h
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/*
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* Contains default mappings for irq_cpustat_t, used by almost every
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* architecture. Some arch (like s390) have per cpu hardware pages and
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* they define their own mappings for irq_stat.
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*
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* Keith Owens <kaos@ocs.com.au> July 2000.
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*/
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/*
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* Simple wrappers reducing source bloat. Define all irq_stat fields
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* here, even ones that are arch dependent. That way we get common
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* definitions instead of differing sets for each arch.
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*/
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#ifndef __ARCH_IRQ_STAT
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DECLARE_PER_CPU_ALIGNED(irq_cpustat_t, irq_stat); /* defined in asm/hardirq.h */
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#define __IRQ_STAT(cpu, member) (per_cpu(irq_stat.member, cpu))
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#endif
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/* arch dependent irq_stat fields */
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#define nmi_count(cpu) __IRQ_STAT((cpu), __nmi_count) /* i386 */
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#endif /* __irq_cpustat_h */
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