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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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27ada410c7
This patch adds support for 10 hardirq bits to the ARM architecture. Needed by the SH-Mobile ARM processor sh7372 that has more than 512 IRQs. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
35 lines
733 B
C
35 lines
733 B
C
#ifndef __ASM_HARDIRQ_H
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#define __ASM_HARDIRQ_H
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#include <linux/cache.h>
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#include <linux/threads.h>
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#include <asm/irq.h>
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typedef struct {
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unsigned int __softirq_pending;
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unsigned int local_timer_irqs;
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} ____cacheline_aligned irq_cpustat_t;
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#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
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#if NR_IRQS > 512
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#define HARDIRQ_BITS 10
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#elif NR_IRQS > 256
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#define HARDIRQ_BITS 9
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#else
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#define HARDIRQ_BITS 8
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#endif
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/*
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* The hardirq mask has to be large enough to have space
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* for potentially all IRQ sources in the system nesting
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* on a single CPU:
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*/
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#if (1 << HARDIRQ_BITS) < NR_IRQS
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# error HARDIRQ_BITS is too low!
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#endif
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#define __ARCH_IRQ_EXIT_IRQS_DISABLED 1
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#endif /* __ASM_HARDIRQ_H */
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