Sorry for the span. I attribute it to some kind of quarks mode.<div><br clear="all">Mark Beihoffer<br>Dragonfly Networks<br><a href="mailto:mbeihoffer@gmail.com">mbeihoffer@gmail.com</a><br><a href="mailto:mark@dragonfly-networks.com">mark@dragonfly-networks.com</a><br>
(612)508-5128<br>
<br><br><div class="gmail_quote">On Fri, Oct 22, 2010 at 9:14 AM, <span dir="ltr"><<a href="mailto:coreboot-request@coreboot.org">coreboot-request@coreboot.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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Today's Topics:<br>
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1. Mark Beihoffer has invited you to open a Google mail account<br>
(Mark Beihoffer)<br>
2. Resource allocator problem? (was: Re: Want to participate in<br>
ASUS M2V(K8T890/VT8237A) testing) (Tobias Diedrich)<br>
<br>
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----------------------------------------------------------------------<br>
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Message: 1<br>
Date: Fri, 22 Oct 2010 07:58:10 -0500<br>
From: Mark Beihoffer <<a href="mailto:mbeihoffer@gmail.com">mbeihoffer@gmail.com</a>><br>
To: <a href="mailto:coreboot@coreboot.org">coreboot@coreboot.org</a><br>
Subject: [coreboot] Mark Beihoffer has invited you to open a Google<br>
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<br>
Message: 2<br>
Date: Fri, 22 Oct 2010 16:14:01 +0200<br>
From: Tobias Diedrich <<a href="mailto:ranma%2Bcoreboot@tdiedrich.de">ranma+coreboot@tdiedrich.de</a>><br>
To: <a href="mailto:coreboot@coreboot.org">coreboot@coreboot.org</a><br>
Subject: [coreboot] Resource allocator problem? (was: Re: Want to<br>
participate in ASUS M2V(K8T890/VT8237A) testing)<br>
Message-ID: <<a href="mailto:20101022141401.GF10870@yumi.tdiedrich.de">20101022141401.GF10870@yumi.tdiedrich.de</a>><br>
Content-Type: text/plain; charset="us-ascii"<br>
<br>
Scott Duplichan wrote:<br>
> ]PCI: 00:01.0 bridge ctrl <- 0017<br>
> ]PCI: 00:01.0 cmd <- 04<br>
> ]PCI: 00:02.0 bridge ctrl <- 0003<br>
> ]PCI: 00:02.0 cmd <- 00<br>
> ]PCI: 00:03.0 bridge ctrl <- 0003<br>
> ]PCI: 00:03.0 cmd <- 07<br>
> ][hang]<br>
> ]<br>
> ]00:03.0 is one of the onboard pcie devices.<br>
> ]<br>
> ]--<br>
> ]Tobias PGP: <a href="http://8ef7ddba.uguu.de" target="_blank">http://8ef7ddba.uguu.de</a><br>
><br>
> The write of 07 enables memory bars, I/O bars, and bus master<br>
> for that device. You could try to dump the config space for that<br>
> device to see if memory and I/O bars are reasonable. Knowing<br>
> MTRRs and TOM would let you confirm the memory bars point to UC-IO.<br>
<br>
Ok, it's a problem with the resource allocator.<br>
It's allocating io 0x000-0xfff to this bridge, and the existing<br>
'avoid legacy ports' checks don't seem to catch this.<br>
<br>
|Done setting resources.<br>
|Show resources in subtree (Root Device)...After assigning values.<br>
|[...]<br>
| PCI: 00:03.0 child on link 0 PCI: 03:00.0<br>
| PCI: 00:03.0 resource base 0 size 1000 align 12 gran 12 limit ffff flags 60080102 index 1c<br>
| PCI: 00:03.0 resource base fecbffff size 0 align 20 gran 20 limit fecbffff flags 60081202 in<br>
| PCI: 00:03.0 resource base f0000000 size 100000 align 20 gran 20 limit fecbffff flags 600802<br>
| PCI: 03:00.0<br>
| PCI: 03:00.0 resource base 10 size 8 align 3 gran 3 limit ffff flags 60000100 index 10<br>
| PCI: 03:00.0 resource base 20 size 4 align 2 gran 2 limit ffff flags 60000100 index 14<br>
| PCI: 03:00.0 resource base 18 size 8 align 3 gran 3 limit ffff flags 60000100 index 18<br>
| PCI: 03:00.0 resource base 24 size 4 align 2 gran 2 limit ffff flags 60000100 index 1c<br>
| PCI: 03:00.0 resource base 0 size 10 align 4 gran 4 limit ffff flags 60000100 index 20<br>
| PCI: 03:00.0 resource base f0000000 size 400 align 10 gran 10 limit fecbffff flags 60000200<br>
| PCI: 00:03.1 child on link 0 PCI: 04:00.0<br>
| PCI: 00:03.1 resource base 1000 size 1000 align 12 gran 12 limit ffff flags 60080102 index 1<br>
<br>
The devices/device.c has two checks to defend legacy ports in<br>
compute_resources and allocate_resources:<br>
<br>
| if (resource->flags & IORESOURCE_IO) {<br>
| /* Don't allow potential aliases over the legacy PCI<br>
| * expansion card addresses. The legacy PCI decodes<br>
| * only 10 bits, uses 0x100 - 0x3ff. Therefore, only<br>
| * 0x00 - 0xff can be used out of each 0x400 block of<br>
| * I/O space.<br>
| */<br>
| if ((base & 0x300) != 0) {<br>
| base = (base & ~0x3ff) + 0x400;<br>
| }<br>
| /* Don't allow allocations in the VGA I/O range.<br>
| * PCI has special cases for that.<br>
| */<br>
| else if ((base >= 0x3b0) && (base <= 0x3df)) {<br>
| base = 0x3e0;<br>
| }<br>
| }<br>
<br>
This doesn't prevent the bridge from getting allocated 0x0000-0x0fff.<br>
<br>
I added<br>
| /* exclude 0x0000 - 0x0400 legacy range */<br>
| if (base <= 0x400) {<br>
| base = 0x400;<br>
| }<br>
<br>
and now it's booting and handing off to seabios (but video card init<br>
doesn't seem to work).<br>
<br>
|Done setting resources.<br>
|Show resources in subtree (Root Device)...After assigning values.<br>
|[...]<br>
| PCI: 00:03.0 child on link 0 PCI: 03:00.0<br>
| PCI: 00:03.0 resource base 1000 size 1000 align 12 gran 12 limit ffff flags 60080102 index 1<br>
| PCI: 00:03.0 resource base fecbffff size 0 align 20 gran 20 limit fecbffff flags 60081202 in<br>
| PCI: 00:03.0 resource base f0000000 size 100000 align 20 gran 20 limit fecbffff flags 600802<br>
| PCI: 03:00.0<br>
| PCI: 03:00.0 resource base 1010 size 8 align 3 gran 3 limit ffff flags 60000100 index 10<br>
| PCI: 03:00.0 resource base 1020 size 4 align 2 gran 2 limit ffff flags 60000100 index 14<br>
| PCI: 03:00.0 resource base 1018 size 8 align 3 gran 3 limit ffff flags 60000100 index 18<br>
| PCI: 03:00.0 resource base 1024 size 4 align 2 gran 2 limit ffff flags 60000100 index 1c<br>
| PCI: 03:00.0 resource base 1000 size 10 align 4 gran 4 limit ffff flags 60000100 index 20<br>
| PCI: 03:00.0 resource base f0000000 size 400 align 10 gran 10 limit fecbffff flags 60000200<br>
| PCI: 00:03.1 child on link 0 PCI: 04:00.0<br>
| PCI: 00:03.1 resource base 2000 size 1000 align 12 gran 12 limit ffff flags 60080102 index 1<br>
| PCI: 00:03.1 resource base fecbffff size 0 align 20 gran 20 limit fecbffff flags 60081202 in<br>
| PCI: 00:03.1 resource base f0100000 size 100000 align 20 gran 20 limit fecbffff flags 600802<br>
|[...]<br>
|Start bios (version pre-0.6.2-20101020_194120-nukunuku)<br>
|Found mainboard ASUS M2V<br>
|Found CBFS header at 0xfffffc6e<br>
|Ram Size=0xdfff0000 (0x0000000100000000 high)<br>
|Relocating init from 0x000e9330 to 0xdffd6880 (size 38496)<br>
|CPU Mhz=1001<br>
|Found 1 cpu(s) max supported 1 cpu(s)<br>
|Copying MPTABLE from 0xdfff0400/dfff0410 to 0x000fda50<br>
|SMBIOS ptr=0x000fda30 table=0xdffefed0<br>
|Scan for VGA option rom<br>
|EHCI init on dev 00:10.4 (regs=0xf0300010)<br>
|Found 0 lpt ports<br>
|Found 2 serial ports<br>
|ATA controller 0 at 1f0/3f4/0 (irq 14 dev 79)<br>
|ATA controller 1 at 170/374/0 (irq 15 dev 79)<br>
|ATA controller 2 at 1010/1020/0 (irq 0 dev 300)<br>
|ATA controller 3 at 1018/1024/0 (irq 0 dev 300)<br>
|ata1-1: Pioneer DVD-ROM ATAPIModel DVD-106S 0122 ATAPI-5 DVD/CD<br>
|PS2 keyboard initialized<br>
|All threads complete.<br>
|Scan for option roms<br>
|Press F12 for boot menu.<br>
<br>
--<br>
Tobias PGP: <a href="http://8ef7ddba.uguu.de" target="_blank">http://8ef7ddba.uguu.de</a><br>
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</blockquote></div><br></div>