reserving VRAM for page tables

Felix Kuehling felix.kuehling at
Thu Dec 5 17:05:58 UTC 2019

I don't think this should go into amdgpu_vram_mgr. KFD tries to avoid 
running out of VRAM for page tables because we cannot oversubscribe 
memory within a process and we want to avoid compute processes evicting 
each other because that would mean thrashing. Those limitation don't 
apply to graphics contexts.


On 2019-12-05 5:50 a.m., Christian König wrote:

> Sorry, just forgot to add the mailing list.
> Am 05.12.19 um 11:49 schrieb Christian König:
>> Hi guys,
>> I've seen some patches flying by to change how much VRAM is reserved 
>> for page tables in the KFD.
>> Would it make sense to fully move that into amdgpu_vram_mgr.c?
>> Regards,
>> Christian.

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