Re: PCI resources above 4GB

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On Sun, Apr 15, 2012 at 1:06 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>> 3. use pci_bus_allocate_resource in drm/radeon driver ... ===> but
>> that could fail.
>>   so could hack it like a. disable bar 0x10 and steal BAR address,
>> then set 0x30 to that address then copy ROM to ram.
>>   after that, disable rom again and set back address to 0x10.
>>   You try to update radeon_get_bios() to achieve that.

patches for solution 3:
map_rom.patch will try to borrow mem or mem pref bar for ROM copying

and You still need to use pci=norom

Yinghai

Attachment: rom_option.patch
Description: Binary data

Attachment: rom_option_1.patch
Description: Binary data

Attachment: map_rom.patch
Description: Binary data


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