[PATCH 1/2] drm/amdgpu: access stolen VRAM directly on KV/KB

Christian König deathsimple at vodafone.de
Mon Nov 7 09:33:46 UTC 2016


Am 07.11.2016 um 10:29 schrieb Michel Dänzer:
> On 07/11/16 06:21 PM, Christian König wrote:
>> From: Christian König <christian.koenig at amd.com>
>>
>> We don't need to use the PCI BAR on APUs. This allows us to access
>> the full VRAM directly without being limited by the BAR size.
>>
>> Signed-off-by: Christian König <christian.koenig at amd.com>
> The series is
>
> Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>
>
>
> We could also drop the HDP flushes / invalidates in this case, right?
Could be, but I'm not 100% sure how those are actually wired up on APUs.

Might be that they are NOPs anyway, but could be that at least the 
flushes are still vital.

Regards,
Christian.


More information about the amd-gfx mailing list