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Subject[PATCH 05/10] x86/io_apic: add get_nr_irqs_gsi()
Date
From: Jeremy Fitzhardinge <jeremy@f9-builder.(none)>

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.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
arch/x86/include/asm/io_apic.h | 1 +
arch/x86/kernel/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 685f21b..b82ca76 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -168,6 +168,7 @@ extern void reinit_intr_remapped_IO_APIC(int);
#endif

extern void probe_nr_irqs_gsi(void);
+extern int get_nr_irqs_gsi(void);

#else /* !CONFIG_X86_IO_APIC */
#define io_apic_assign_pci_irqs 0
diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 6366384..b93a919 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -3865,6 +3865,11 @@ 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)
{
--
1.6.0.6


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