[PATCH 6/6] drm/amdgpu: handle CPU access for split VRAM buffers

[deathsimple@xxxxxxxxxxx (Christian König)]

Am 03.04.2017 um 18:25 schrieb Nicolai Hähnle:
> On 31.03.2017 11:47, Christian König wrote:
>> From: Christian König <christian.koenig at amd.com>
>> [SNIP]
>>          mem->bus.offset = mem->start << PAGE_SHIFT;
>>          /* check if it's visible */
>>          if ((mem->bus.offset + mem->bus.size) > 
>> adev->mc.visible_vram_size)
>
> I believe the various mem->bus members are now unused, aren't they? 
> Unless I missed something, it's best to clean this up and no longer 
> set them (or set them to some obvious poison values).

No, they are still needed for in kernel mappings. I only handle split 
mappings from userspace with the new callback.

Regards,
Christian.