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SubjectRe: [PATCH V2 2/2] efi/fb: Convert PCI bus address to resource if translated by the bridge
On 2018-06-13 11:22, Ard Biesheuvel wrote:
> On 13 June 2018 at 17:17, <okaya@codeaurora.org> wrote:
>> On 2018-06-13 11:06, Ard Biesheuvel wrote:
>>>
>>> On 13 June 2018 at 16:22, Sinan Kaya <okaya@codeaurora.org> wrote:
>>>>
>>>> Hi Ard,
>>>>
>>>> On 5/18/2018 10:17 AM, Sinan Kaya wrote:
>>>>>
>>>>> A host bridge is allowed to remap BAR addresses using _TRA
>>>>> attribute in
>>>>> _CRS windows.
>>>>>
>>>>> pci_bus 0000:00: root bus resource [mem 0x80100100000-0x8011fffffff
>>>>> window] (bus address [0x00100000-0x1fffffff])
>>>>> pci 0000:02:00.0: reg 0x10: [mem 0x8011e000000-0x8011effffff]
>>>>>
>>>>> When a VGA device is behind such a host bridge and the resource is
>>>>> translated efifb driver is trying to do ioremap against bus address
>>>>> rather than the resource address and is failing to probe.
>>>>>
>>>>> efifb: probing for efifb
>>>>> efifb: cannot reserve video memory at 0x1e000000
>>>>> efifb: framebuffer at 0x1e000000, using 1920k, total 1875k
>>>>> efifb: mode is 800x600x32, linelength=3200, pages=1
>>>>> efifb: scrolling: redraw
>>>>> efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0
>>>>>
>>>>> Use the host bridge offset information to convert bus address to
>>>>> resource address in the fixup.
>>>>>
>>>>> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
>>>>> ---
>>>>
>>>>
>>>> I didn't see any messages about these getting picked up for 4.18.
>>>>
>>>> Are they queued on your own branch?
>>>>
>>>
>>> No, you never cc'ed me on them until now.
>>
>>
>> Ouch, I hoped that you would get it via get_maintainer script. Sorry
>> for
>> that.
>
> Actually, get_maintainer is right: this should go through the fbdev
> tree not the EFI tree
>
> Were you going to resend them? If not, I can find them in my archive
> and ack them, and we will ask Bartlomiej to take them for v4.19

I prefer ack rather than resend to be honest.

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