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Viewing changes to arch/x86/include/asm/mach-default/mach_ipi.h

  • Committer: Bazaar Package Importer
  • Author(s): Luke Yelavich
  • Date: 2009-08-05 23:00:52 UTC
  • Revision ID: james.westby@ubuntu.com-20090805230052-7xedvqcyk9dnnxb2
Tags: 2.6.31-1.1
New upstream release

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arch/x86/include/asm/mach-default/mach_ipi.h
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#ifndef _ASM_X86_MACH_DEFAULT_MACH_IPI_H
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#define _ASM_X86_MACH_DEFAULT_MACH_IPI_H
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/* Avoid include hell */
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#define NMI_VECTOR 0x02
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void send_IPI_mask_bitmask(const struct cpumask *mask, int vector);
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void send_IPI_mask_allbutself(const struct cpumask *mask, int vector);
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void __send_IPI_shortcut(unsigned int shortcut, int vector);
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extern int no_broadcast;
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#ifdef CONFIG_X86_64
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#include <asm/genapic.h>
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#define send_IPI_mask (genapic->send_IPI_mask)
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#define send_IPI_mask_allbutself (genapic->send_IPI_mask_allbutself)
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#else
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static inline void send_IPI_mask(const struct cpumask *mask, int vector)
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{
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        send_IPI_mask_bitmask(mask, vector);
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}
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void send_IPI_mask_allbutself(const struct cpumask *mask, int vector);
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#endif
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static inline void __local_send_IPI_allbutself(int vector)
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{
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        if (no_broadcast || vector == NMI_VECTOR)
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                send_IPI_mask_allbutself(cpu_online_mask, vector);
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        else
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                __send_IPI_shortcut(APIC_DEST_ALLBUT, vector);
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}
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static inline void __local_send_IPI_all(int vector)
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{
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        if (no_broadcast || vector == NMI_VECTOR)
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                send_IPI_mask(cpu_online_mask, vector);
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        else
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                __send_IPI_shortcut(APIC_DEST_ALLINC, vector);
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}
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#ifdef CONFIG_X86_64
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#define send_IPI_allbutself (genapic->send_IPI_allbutself)
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#define send_IPI_all (genapic->send_IPI_all)
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#else
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static inline void send_IPI_allbutself(int vector)
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{
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        /*
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         * if there are no other CPUs in the system then we get an APIC send 
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         * error if we try to broadcast, thus avoid sending IPIs in this case.
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         */
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        if (!(num_online_cpus() > 1))
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                return;
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        __local_send_IPI_allbutself(vector);
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        return;
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}
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static inline void send_IPI_all(int vector)
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{
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        __local_send_IPI_all(vector);
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}
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#endif
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#endif /* _ASM_X86_MACH_DEFAULT_MACH_IPI_H */