Resource Allocation problems

[Myles Watson]

This is the resource tree for SimNOW:

Root Device resource base 1000 size 2000 align c gran 0 limit ffff flags
40000100
 Root Device resource base fd000000 size 1200000 align 18 gran 0 limit
febfffff flags 40000200
  PCI_DOMAIN: 0000 resource base 400 size 0 align 0 gran 0 limit ffff flags
40040100
  PCI_DOMAIN: 0000 resource base 0 size 0 align 0 gran 0 limit fcffffffff
flags 40040200
  PCI_DOMAIN: 0000 resource base 0 size a0000 align 0 gran 0 limit 0 flags
e0004200
  PCI_DOMAIN: 0000 resource base c0000 size ff40000 align 0 gran 0 limit 0
flags e0004200
   PCI: 00:18.0 resource base fe200000 size 0 align 14 gran 14 limit
ffffffffff flags 60001200
   PCI: 00:18.0 resource base 1000 size 2000 align c gran c limit ffff flags
60000100
   PCI: 00:18.0 resource base fd000000 size 1200000 align 18 gran 14 limit
febfffff flags 60000200
   PCI: 00:18.0 resource base 3000 size 0 align c gran c limit ffff flags
60000100
   PCI: 00:18.0 resource base fe200000 size 0 align 14 gran 14 limit
ffffffffff flags 60001200
   PCI: 00:18.0 resource base fe200000 size 0 align 14 gran 14 limit
ffffffffff flags 60000200
   PCI: 00:18.0 resource base a0000 size 20000 align 0 gran 0 limit 0 flags
0
    PCI: 00:06.0 resource base 1000 size 1000 align c gran c limit ffff
flags 60000102
    PCI: 00:06.0 resource base fd000000 size 1100000 align 18 gran 14 limit
febfffff flags 60000202
     PCI: 01:00.0 resource base fe050000 size 1000 align c gran c limit
ffffffff flags 60000200
     PCI: 01:00.1 resource base fe051000 size 1000 align c gran c limit
ffffffff flags 60000200
     PCI: 01:00.2 resource base fe054000 size 100 align 8 gran 8 limit
ffffffff flags 60000200
     PCI: 01:01.0 resource base fe052000 size 1000 align c gran c limit
ffffffff flags 60000200
     PCI: 01:04.0 resource base fd000000 size 1000000 align 18 gran 18 limit
ffffffff flags 60000200
     PCI: 01:04.0 resource base fe055000 size 100 align 8 gran 8 limit
ffffffff flags 60000200
     PCI: 01:04.0 resource base 1000 size 100 align 8 gran 8 limit ffff
flags 60000100
     PCI: 01:04.0 resource base fe040000 size 10000 align 10 gran 10 limit
ffffffff flags 60002200
     PCI: 01:05.0 resource base fe000000 size 20000 align 11 gran 11 limit
ffffffff flags 60000200
     PCI: 01:05.0 resource base fe020000 size 20000 align 11 gran 11 limit
ffffffff flags 60000200
     PCI: 01:05.0 resource base 1400 size 40 align 6 gran 6 limit ffff flags
60000100
     PCI: 01:05.0 resource base fe053000 size 800 align b gran b limit
ffffffff flags 60002200
    PCI: 00:07.0 resource base 0 size 0 align 0 gran 0 limit 0 flags
40040100
    PCI: 00:07.0 resource base 0 size 0 align 0 gran 0 limit 0 flags
40040200
    PCI: 00:07.1 resource base 2c60 size 10 align 4 gran 4 limit ffff flags
60000100
    PCI: 00:07.2 resource base 2c40 size 20 align 5 gran 5 limit ffff flags
60000100
    PCI: 00:07.5 resource base 2000 size 100 align 8 gran 8 limit ffff flags
60000100
    PCI: 00:07.5 resource base 2c00 size 40 align 6 gran 6 limit ffff flags
60000100
    PCI: 00:07.6 resource base 2400 size 100 align 8 gran 8 limit ffff flags
60000100
    PCI: 00:07.6 resource base 2800 size 80 align 7 gran 7 limit ffff flags
60000100
    PCI: 00:07.7 resource base fe100000 size 1000 align c gran c limit
ffffffff flags 60000200
    PCI: 00:07.7 resource base 2880 size 80 align 7 gran 7 limit ffff flags
60000100
    PCI: 00:0a.1 resource base fe101000 size 1000 align c gran c limit
ffffffffffffffff flags 60000201
    PCI: 00:0b.1 resource base fe102000 size 1000 align c gran c limit
ffffffffffffffff flags 60000201

There are several resources of size zero.  Can we get rid of them?
There is a nearly duplicated resource for 0:18.0, both of which are size 0.

Thanks,
Myles

[ron minnich]

On Fri, Oct 17, 2008 at 11:31 AM, Myles Watson  wrote:
> There are several resources of size zero.  Can we get rid of them?

Is there harm done in having them there? I can't see any. This all
goes away when the payload starts.
> There is a nearly duplicated resource for 0:18.0, both of which are size 0.

These are the two HT links.

I don't see a reason to yank these things unless there is harm done.

ron

[Myles Watson]

On Fri, Oct 17, 2008 at 2:01 PM, ron minnich  wrote:
> On Fri, Oct 17, 2008 at 11:31 AM, Myles Watson  wrote:
> > There are several resources of size zero.  Can we get rid of them?
>
> Is there harm done in having them there? I can't see any. This all
> goes away when the payload starts.
> > There is a nearly duplicated resource for 0:18.0, both of which are size
>
> These are the two HT links.
>
> I don't see a reason to yank these things unless there is harm done.
>
> ron

I'm trying to figure out why the VGA isn't working.  There are several
resources that get enabled that claim to have the VGA resource in v3, but
not in v2.  I thought maybe that was the problem.

Myles

[Myles Watson]

Here's the problem I was trying to get to the bottom of:

There are two overlapping ranges when the payload starts:

0:18.1
B4 & BC
B8 & BC

BASE        LIMIT

00FD0003 00FE1F00

00FC0003 00FFFF00

In v2 there's only one at that point.

There are also extra mappings in IO space, but they are zero size.

It's very possible that it makes no difference.  It just makes it harder to
read the address map with extra entries.

Thanks,
Myles