Ollie,
I recall sth about mtrr setting, I wonder if I enable the NC could affect your code. Please check cpu/x86/mtrr/mtrr.c about enable NC below 4G.
YH
-----Original Message----- From: Li-Ta Lo [mailto:ollie@lanl.gov] Sent: Tuesday, January 11, 2005 10:21 AM To: LinuxBIOS; Eric Biederman Subject: Overlaping IO resource for AMD K8
Eric,
Why I got the overlaping IO resources in the 18:0 ?
PCI: 00:18.0 1ba <- [0x00f4000000 - 0x00f5ffffff] prefmem <node 0 link2> PCI: 00:18.0 1c2 <- [0x0000001000 - 0x0000001fff] io <node 0 link 2> PCI: 00:18.0 1d8 <- [0x0000002000 - 0x0000001fff] io <node 0 link 0> PCI: 00:18.0 1b0 <- [0x00e0000000 - 0x00efffffff] prefmem <node 0 link0> PCI: 00:18.0 1a8 <- [0x00f6300000 - 0x00f63fffff] mem <node 0 link 0> PCI: 00:18.0 1a2 <- [0x00f6000000 - 0x00f62fffff] mem <node 0 link 2>
Shouldn't the 1d8 be 0x2000 to 0x2ffff?
Ollie
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On Tue, 2005-01-11 at 11:56, YhLu wrote:
Ollie,
I recall sth about mtrr setting, I wonder if I enable the NC could affect your code. Please check cpu/x86/mtrr/mtrr.c about enable NC below 4G.
I think there is some problem with the resource allocation. If the vga card has PCI IO resource then there will be no overlaping. If it does not have PCI IO resource then there will be overlaping.
Ollie
On Tue, 2005-01-11 at 12:02, Li-Ta Lo wrote:
On Tue, 2005-01-11 at 11:56, YhLu wrote:
Ollie,
I recall sth about mtrr setting, I wonder if I enable the NC could affect your code. Please check cpu/x86/mtrr/mtrr.c about enable NC below 4G.
I think there is some problem with the resource allocation. If the vga card has PCI IO resource then there will be no overlaping. If it does not have PCI IO resource then there will be overlaping.
There is really a but in the resource allocation. Please take a look at the attached log files. The ATI card has PCI IO resource so there is no bogus resource in the northbridge. As the Nvidia card it does not have PCI IO resource so we got the 20000 to 1ffff thing.
Ollie
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Li-Ta Lo -
YhLu