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[PATCH] PCI: per-platform IA64_{FIRST,LAST}_DEVICE_VECTOR definitions

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Abstract IA64_FIRST_DEVICE_VECTOR/IA64_LAST_DEVICE_VECTOR since SN platforms
use a subset of the IA64 range.  Implement this by making the above macros
global variables which the platform can override in it setup code.

Also add a reserve_irq_vector() routine used by SN to mark a vector's as
in-use when that weren't allocated through assign_irq_vector().

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mark Maule
2006-04-14 16:03:49 -05:00
committed by Greg Kroah-Hartman
parent fd58e55fcf
commit 10083072bf
4 changed files with 43 additions and 4 deletions
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6
drivers/pci/msi.c
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@ -35,7 +35,7 @@ static int nr_msix_devices;
#ifndef CONFIG_X86_IO_APIC
int vector_irq[NR_VECTORS] = { [0 ... NR_VECTORS - 1] = -1};
u8 irq_vector[NR_IRQ_VECTORS] = { FIRST_DEVICE_VECTOR , 0 };
u8 irq_vector[NR_IRQ_VECTORS];
#endif
static struct msi_ops *msi_ops;
@ -383,6 +383,10 @@ static int msi_init(void)
return status;
}
#ifndef CONFIG_X86_IO_APIC
irq_vector[0] = FIRST_DEVICE_VECTOR;
#endif
if (last_alloc_vector < 0) {
pci_msi_enable = 0;
printk(KERN_WARNING "PCI: No interrupt vectors available for MSI\n");