New subject: Running with VGA

13 Jan 2005


      Works not.
I happen to delete in pci_read_config(dev, PCI_ROM_ADDRESS)
-----Original Message-----
From: YhLu 
Sent: Thursday, January 13, 2005 10:20 AM
To: YhLu; 'Li-Ta Lo'
Cc: 'Sagiv Yefet'; 'LinuxBIOS'
Subject: RE: Running with VGA
Move         /* for on board device with embedded ROM image, the ROM image
is at
         * fixed address specified in the Config.lb, the dev->rom_address is
         * inited by driver_pci_onboard_ops::enable_dev() */
        if ((dev->on_mainboard) && (dev->rom_address != 0)) {
                resource->base   = dev->rom_address; 
                resource->flags |= IORESOURCE_MEM | IORESOURCE_READONLY |
                        IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
                return;
        }
To get_pci_rom_resource end.
PCI: 02:06.0 30 <- [0x00fff80000 - 0x00fff9ffff] rom
But
PCI: 02:06.0 init
pci_rom_probe, rom address for PCI: 02:06.0 = 1d300
pci_rom_probe, Incorrect Expansion ROM Header Signature 1fe8
I wonder if we can not store that value into PCI_ROM_ADDRESS
YH
-----Original Message-----
From: YhLu 
Sent: Thursday, January 13, 2005 10:06 AM
To: YhLu; Li-Ta Lo
Cc: Sagiv Yefet; LinuxBIOS
Subject: RE: Running with VGA
I guess it can not get size correctly.
So you need to change the pci_get_rom_resource to get the size for it.
And then assign the base to it.
YH
-----Original Message-----
From: YhLu 
Sent: Thursday, January 13, 2005 9:49 AM
To: Li-Ta Lo
Cc: Sagiv Yefet; LinuxBIOS
Subject: RE: Running with VGA
PCI: 02:06.0 30 <- [0x00fff80000 - 0x00fff7ffff] rom
It seems it can not be processed by pci_set_resource properly.
YH
-----Original Message-----
From: Li-Ta Lo [mailto:ollie@lanl.gov] 
Sent: Wednesday, January 12, 2005 10:10 PM
To: YhLu
Cc: Sagiv Yefet; LinuxBIOS
Subject: RE: Running with VGA
On Wed, 2005-01-12 at 23:07, YhLu wrote:
...
You assign the value to the new resource.
I wonder if it will confuse the resource allocator. Because the range is
out
...
of touch of allocator.
I don't think so but I am not sure neither. The resource is flagged as 
FIXED and ASSIGNED. The resource allocator should leave that resource as
is. If it does not work, we can just write dev->rom_address to 
PCI_ROM_ADDRESS directly in pci_get_rom_resource() and the 
pci_rom_probe() can still be unchanged.
Could you try the code?
Ollie
...
YH
-----Original Message-----
From: Li-Ta Lo [mailto:ollie@lanl.gov] 
Sent: Wednesday, January 12, 2005 9:48 PM
To: YhLu
Cc: Sagiv Yefet; LinuxBIOS
Subject: RE: Running with VGA
On Wed, 2005-01-12 at 21:02, YhLu wrote:
...
Committed.
Also I added readme in /drivers/pci/onboard/onboard.c
YH
I made some modification which should utilize the resource allocation
code and minimize the impact of the embedded ROM image. I was doing
it blindly, please test it on your platform.
Ollie
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