[coreboot] Resource allocation

Myles Watson mylesgw at gmail.com
Wed Nov 12 19:33:31 CET 2008


On Wed, Nov 12, 2008 at 10:59 AM, Myles Watson <mylesgw at gmail.com> wrote:

> Here's the resource tree with my patch, note that it's not perfect yet.
>
> domain_0(PCI_DOMAIN: 0000) assign_resources done, bus 0 link: 0
> root(Root Device) assign_resources done, bus 0 link: 0

Here's the first problem: The root device only has 1 IO resource

>   Root Device resource base 1000 size 2000 align c gran 0 limit ffff flags
> 40000100 index 0
>   Root Device resource base fc000000 size 1200000 align 18 gran 0 limit
> febfffff flags 40000200 index 1
>
But the domain has multiple, and they don't get configured correctly.  I
think resource allocation should be done per domain.  I haven't implemented
it yet, though.

Thanks,
Myles


>    PCI_DOMAIN: 0000 resource base 400 size 0 align 0 gran 0 limit ffff
> flags 40040100 index 10000000
>    PCI_DOMAIN: 0000 resource base 0 size 0 align 0 gran 0 limit fcffffffff
> flags 40040200 index 10000100
>    PCI_DOMAIN: 0000 resource base 0 size a0000 align 0 gran 0 limit 0 flags
> e0004200 index 10
>    PCI_DOMAIN: 0000 resource base c0000 size ff40000 align 0 gran 0 limit 0
> flags e0004200 index 20
>     PCI: 00:18.0 resource base fd200000 size 0 align 14 gran 14 limit
> ffffffffff flags 60001200 index 1b8
>     PCI: 00:18.0 resource base 1000 size 2000 align c gran c limit ffff
> flags 60000100 index 1c0
>     PCI: 00:18.0 resource base fc000000 size 1200000 align 18 gran 14 limit
> febfffff flags 60000200 index 1b0
>     PCI: 00:18.0 resource base a0000 size 20000 align 0 gran 0 limit 0
> flags 0 index 1a8
>      PCI: 00:06.0 resource base 1000 size 1000 align c gran c limit ffff
> flags 60000102 index 1c
>      PCI: 00:06.0 resource base fc000000 size 1100000 align 18 gran 14
> limit febfffff flags 60000202 index 20
>       PCI: 01:00.0 resource base fd050000 size 1000 align c gran c limit
> ffffffff flags 60000200 index 10
>       PCI: 01:00.1 resource base fd051000 size 1000 align c gran c limit
> ffffffff flags 60000200 index 10
>       PCI: 01:04.0 resource base fc000000 size 1000000 align 18 gran 18
> limit ffffffff flags 60000200 index 10
>       PCI: 01:04.0 resource base fd053000 size 100 align 8 gran 8 limit
> ffffffff flags 60000200 index 14
>       PCI: 01:04.0 resource base 1000 size 100 align 8 gran 8 limit ffff
> flags 60000100 index 18
>       PCI: 01:04.0 resource base fd040000 size 10000 align 10 gran 10 limit
> ffffffff flags 60002200 index 30
>       PCI: 01:05.0 resource base fd000000 size 20000 align 11 gran 11 limit
> ffffffff flags 60000200 index 10
>       PCI: 01:05.0 resource base fd020000 size 20000 align 11 gran 11 limit
> ffffffff flags 60000200 index 14
>       PCI: 01:05.0 resource base 1400 size 40 align 6 gran 6 limit ffff
> flags 60000100 index 18
>       PCI: 01:05.0 resource base fd052000 size 800 align b gran b limit
> ffffffff flags 60002200 index 30
>      PCI: 00:07.0 resource base 0 size 0 align 0 gran 0 limit 0 flags
> 40040100 index 10000000
>      PCI: 00:07.0 resource base 0 size 0 align 0 gran 0 limit 0 flags
> 40040200 index 10000100
>        PNP: 002e.2 resource base 0 size 8 align 3 gran 3 limit 7ff flags
> c0000100 index 60
>        PNP: 002e.2 resource base 0 size 1 align 0 gran 0 limit 0 flags 400
> index 70
>        PNP: 002e.5 resource base 0 size 1 align 0 gran 0 limit ffffffff
> flags c0000100 index 60
>        PNP: 002e.5 resource base 0 size 1 align 0 gran 0 limit ffffffff
> flags c0000100 index 62
>        PNP: 002e.5 resource base 0 size 1 align 0 gran 0 limit 0 flags 400
> index 70
>        PNP: 002e.5 resource base 0 size 1 align 0 gran 0 limit 0 flags 400
> index 72
>      PCI: 00:07.1 resource base 2020 size 10 align 4 gran 4 limit ffff
> flags 60000100 index 20
>      PCI: 00:07.2 resource base 2000 size 20 align 5 gran 5 limit ffff
> flags 60000100 index 10
>      PCI: 00:0a.1 resource base fd100000 size 1000 align c gran c limit
> ffffffffffffffff flags 60000201 index 10
>      PCI: 00:0b.1 resource base fd101000 size 1000 align c gran c limit
> fffffffffffffff
>
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