Messages in this thread |  | | | Date | Fri, 15 Aug 2008 23:42:25 -0700 | | From | "Yinghai Lu" <> | | Subject | Re: [PATCH] pci: change msi-x vector to 32bit | |
On Fri, Aug 15, 2008 at 8:26 PM, H. Peter Anvin <hpa@zytor.com> wrote:
> The 28 bits aren't enough, are they: we need domain as well (and surely we can have more than 16 domains?)
current code
static unsigned int build_irq_for_pci_dev(struct pci_dev *dev)
{
unsigned int irq;
irq = dev->bus->number;
irq <<= 8;
irq |= dev->devfn;
irq <<= 12;
return irq;
}
int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
{
unsigned int irq;
int ret;
unsigned int irq_want;
irq_want = build_irq_for_pci_dev(dev) + 0x100;
irq = create_irq(irq_want);
domain is not used yet.
need to make vecter_irq to vector_domain_irq
irq_desc(irq) change to domain_irq_desc(domain, irq)
...
YH
YH
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