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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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f26fdd5992
IRQ_PER_CPU is not used by all architectures. This patch introduces the
macros ARCH_HAS_IRQ_PER_CPU and CHECK_IRQ_PER_CPU() to avoid the generation
of dead code in __do_IRQ().
ARCH_HAS_IRQ_PER_CPU is defined by architectures using IRQ_PER_CPU in their
include/asm_ARCH/irq.h file.
Through grepping the tree I found the following architectures currently use
IRQ_PER_CPU:
cris, ia64, ppc, ppc64 and parisc.
Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/*
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* include/asm-parisc/irq.h
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*
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* Copyright 2005 Matthew Wilcox <matthew@wil.cx>
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*/
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#ifndef _ASM_PARISC_IRQ_H
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#define _ASM_PARISC_IRQ_H
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#include <linux/config.h>
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#include <asm/types.h>
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#define NO_IRQ (-1)
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#ifdef CONFIG_GSC
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#define GSC_IRQ_BASE 16
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#define GSC_IRQ_MAX 63
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#define CPU_IRQ_BASE 64
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#else
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#define CPU_IRQ_BASE 16
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#endif
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#define TIMER_IRQ (CPU_IRQ_BASE + 0)
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#define IPI_IRQ (CPU_IRQ_BASE + 1)
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#define CPU_IRQ_MAX (CPU_IRQ_BASE + (BITS_PER_LONG - 1))
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#define NR_IRQS (CPU_IRQ_MAX + 1)
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/*
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* IRQ line status macro IRQ_PER_CPU is used
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*/
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#define ARCH_HAS_IRQ_PER_CPU
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static __inline__ int irq_canonicalize(int irq)
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{
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return (irq == 2) ? 9 : irq;
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}
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struct hw_interrupt_type;
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/*
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* Some useful "we don't have to do anything here" handlers. Should
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* probably be provided by the generic code.
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*/
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void no_ack_irq(unsigned int irq);
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void no_end_irq(unsigned int irq);
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extern int txn_alloc_irq(unsigned int nbits);
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extern int txn_claim_irq(int);
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extern unsigned int txn_alloc_data(unsigned int);
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extern unsigned long txn_alloc_addr(unsigned int);
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extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
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extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
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/* soft power switch support (power.c) */
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extern struct tasklet_struct power_tasklet;
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#endif /* _ASM_PARISC_IRQ_H */
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