[Intel-gfx] i915_stolen_to_physical() broken in 3.11+

[Knut Petersen]

On 09.09.2013 11:53, Daniel Vetter wrote:
> On Mon, Sep 9, 2013 at 11:39 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
>> On Mon, Sep 09, 2013 at 11:34:19AM +0200, Knut Petersen wrote:
>>> Problem:
>>> =======
>>>
>>> Your changes to i915_stolen_to_physical() (commit: eaba1b8f3379b5d100bd146b9a41d28348bdfd09) expose the following problem
>>>
>>> [    2.272218] [drm:i915_stolen_to_physical] *ERROR* conflict detected with stolen region: [0x7f800000 - 0x80000000]
>> The fix, to reserve the stolen region in early x86 init, should be
>> upstream already.
> Atm it's stuck in drm-intel-fixes, but the pull request is already
> sent to Dave. So hopefully it'll land in upstream in a few days ...
> Poking Dave to speed stuff up ;-)
> -Daniel
>
Well, at least those two patches do fix the problem:

00100000-7f7effff : System RAM
   00100000-005492f1 : Kernel code
   005492f2-007d2fbf : Kernel data
   0084e000-00dacfff : Kernel bss
7f7f0000-7f7f2fff : ACPI Non-volatile Storage
7f7f3000-7f7fffff : ACPI Tables
7f800000-7fffffff : reserved
   7f800000-7fffffff : Graphics Stolen Memory

cu,
  Knut