Re: [PATCH 02/11] PCI: Try to allocate mem64 above 4G at first

H. Peter Anvin
2012-05-29T17:57:48Z

On 05/29/2012 10:55 AM, Yinghai Lu wrote:
>
> x86 are using 16bits.
>
> some others use 32 bits.
> #define IO_SPACE_LIMIT 0xffffffff
>
> ia64 and sparc are using 64bits.
> #define IO_SPACE_LIMIT 0xffffffffffffffffUL
>
> but pci only support 16bits and 32bits.
>
> maybe later we can add
> PCI_MAX_RESOURCE_16
>
> to handle 16bits and 32bit io ports.
>

Shouldn't this be dealt by root port apertures?

-hpa