[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: [PATCH 04/22] x86/io_apic: add get_nr_irqs_gsi()
On Mon, 4 Oct 2010, Konrad Rzeszutek Wilk wrote: > From: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> > > Impact: new interface to get max GSI > > Add get_nr_irqs_gsi() to return nr_irqs_gsi. Xen will use this to > determine how many irqs it needs to reserve for hardware irqs. Acked.by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> > Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> > Reviewed-by: "H. Peter Anvin" <hpa@xxxxxxxxx> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: x86@xxxxxxxxxx > Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> > --- > arch/x86/include/asm/io_apic.h | 1 + > arch/x86/kernel/apic/io_apic.c | 5 +++++ > 2 files changed, 6 insertions(+), 0 deletions(-) > > diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h > index 9cb2edb..f27c681 100644 > --- a/arch/x86/include/asm/io_apic.h > +++ b/arch/x86/include/asm/io_apic.h > @@ -169,6 +169,7 @@ extern void mask_IO_APIC_setup(struct IO_APIC_route_entry > **ioapic_entries); > extern int restore_IO_APIC_setup(struct IO_APIC_route_entry > **ioapic_entries); > > extern void probe_nr_irqs_gsi(void); > +extern int get_nr_irqs_gsi(void); > > extern int setup_ioapic_entry(int apic, int irq, > struct IO_APIC_route_entry *entry, > diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c > index f1efeba..4c9b2b9 100644 > --- a/arch/x86/kernel/apic/io_apic.c > +++ b/arch/x86/kernel/apic/io_apic.c > @@ -3862,6 +3862,11 @@ void __init probe_nr_irqs_gsi(void) > printk(KERN_DEBUG "nr_irqs_gsi: %d\n", nr_irqs_gsi); > } > > +int get_nr_irqs_gsi(void) > +{ > + return nr_irqs_gsi; > +} > + > #ifdef CONFIG_SPARSE_IRQ > int __init arch_probe_nr_irqs(void) > { > -- > 1.7.0.4 > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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