From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steven Newbury <steve@snewbury.org.uk>
Subject: Re: PCI resources above 4GB
Date: Tue, 24 Apr 2012 10:49:01 +0100
Message-ID: <4F96770D.2050606@snewbury.org.uk>
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To: Yinghai Lu <yinghai@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>, "Barnes,
	Jesse" <jesse.barnes@intel.com>, DRI mailing list <dri-devel@lists.freedesktop.org>, linux-pci@vger.kernel.org
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On 16/04/12 18:29, Yinghai Lu wrote:
> On Sun, Apr 15, 2012 at 11:54 PM, Yinghai Lu <yinghai@kernel.org>
> wrote:
>> On Sun, Apr 15, 2012 at 1:06 PM, Yinghai Lu <yinghai@kernel.org>
>> 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
> 
> map_rom.patch missed one !
> 
> Please check map_rom_v2.patch
> 
Hopefully, I'm going to have time to look into this again later today,
depending how well other tasks go...
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