[Intel-gfx] [PATCH 2/5] drm/i915: preserve swizzle settings if necessary v3

[Daniel Vetter]

On Wed, Jun 11, 2014 at 5:13 PM, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
>> - If you have a machine which uses tiled framebuffers and enables
>>   swizzling in the BIOS your code will a) drop the swizzle setup in
>>   gem_init_hw, breaking resume b) not set the swizzle settings correctly
>>   in swizzle_detect, breaking swap in/out and pwrite/pread. Not sure such
>>   a machine exists, but still.
>
> This would affect krh's MBA, which is why I wanted testing here...
> anyway I'll spin a new one and ask krh to test again.

Hm, I've thought the issue with the MBA is that it used tiled fbs, but
non-swizzled. And then a mess ensued when we've enabled it. But yeah,
unfortunately with the new logic we need to retest :(
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch