* Re: [PATCH] PCI domain support for 2.4
@ 2003-07-30 22:52 Bjorn Helgaas
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From: Bjorn Helgaas @ 2003-07-30 22:52 UTC (permalink / raw)
To: linux-ia64
On Wednesday 25 June 2003 3:06 pm, Matthew Wilcox wrote:
>
> 2.4 can support PCI domains with non-overlapping bus numbers. While this
> isn't terribly useful, it may help some machine designs. This is the
> minimum patch to support this for 2.4 -- a more invasive patch would
> replace PCI_SEGMENT with pci_controller_num throughout the ia64 code.
>
> === include/asm-ia64/pci.h 1.12 vs edited ==> --- 1.12/include/asm-ia64/pci.h Thu Mar 6 09:43:37 2003
> +++ edited/include/asm-ia64/pci.h Fri Jun 20 09:41:13 2003
> @@ -82,8 +82,8 @@
> #define pci_dac_dma_to_offset(dev,dma_addr) ((dma_addr) & ~PAGE_MASK)
> #define pci_dac_dma_sync_single(dev,dma_addr,len,dir) do { /* nothing */ } while (0)
>
> -/* Return the index of the PCI controller for device PDEV. */
> -#define pci_controller_num(PDEV) (0)
> +/* Return the PCI domain number */
> +#define pci_controller_num(pdev) (PCI_SEGMENT(pdev))
>
> #define sg_dma_address(sg) ((sg)->dma_address)
> #define sg_dma_len(sg) ((sg)->dma_length)
I applied this for 2.4. Thanks!
Bjorn
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