Christian
>> ; amd-gfx@lists.freedesktop.org
>> Subject: Re: [PATCH 2/2] drm/amdgpu: disable vm fault irq during prt
>> accessed
>>
>> Writes are then not ignored and garbage the dummy page.
>>
>> Christian.
>>
>> Am 03.01.19 um 10:46 schrieb Zho
ng) ; Koenig, Christian
> ; amd-gfx@lists.freedesktop.org
> Subject: Re: [PATCH 2/2] drm/amdgpu: disable vm fault irq during prt
> accessed
>
> Writes are then not ignored and garbage the dummy page.
>
> Christian.
>
> Am 03.01.19 um 10:46 schrieb Zhou, David(ChunMing):
, January 03, 2019 5:23 PM
To: Koenig, Christian ; amd-
g...@lists.freedesktop.org
Subject: RE: [PATCH 2/2] drm/amdgpu: disable vm fault irq during prt
accessed
-Original Message-
From: Christian König
Sent: Thursday, January 03, 2019 5:05 PM
To: Zhou, David(ChunMing) ; Koenig, Christian
E: [PATCH 2/2] drm/amdgpu: disable vm fault irq during prt
> accessed
>
>
>
> > -Original Message-
> > From: Christian König
> > Sent: Thursday, January 03, 2019 5:05 PM
> > To: Zhou, David(ChunMing) ; Koenig, Christian
> > ; Zhou, David(ChunMing)
&
top.org
>> Subject: Re: [PATCH 2/2] drm/amdgpu: disable vm fault irq during prt
>> accessed
>>
>> Yes, exactly.
>>
>> Problem is that we then probably need two page tables. One for the CB/TC
>> and one for the SDMA.
> But when setup page table, how can we k
> -Original Message-
> From: Christian König
> Sent: Thursday, January 03, 2019 5:05 PM
> To: Zhou, David(ChunMing) ; Koenig, Christian
> ; Zhou, David(ChunMing)
> ; amd-gfx@lists.freedesktop.org
> Subject: Re: [PATCH 2/2] drm/amdgpu: disable vm fault irq during pr
Yes, exactly.
Problem is that we then probably need two page tables. One for the CB/TC
and one for the SDMA.
Christian.
Am 03.01.19 um 10:02 schrieb zhoucm1:
need dummy page for that?
-David
On 2019年01月03日 17:01, Christian König wrote:
NAK, the problem is not the interrupt.
E.g.
need dummy page for that?
-David
On 2019年01月03日 17:01, Christian König wrote:
NAK, the problem is not the interrupt.
E.g. causing faults by accessing unmapped pages with the SDMA can
still crash the MC.
The key point is that SDMA can't work with PRT tiles on pre-gmc9 and
we need to
NAK, the problem is not the interrupt.
E.g. causing faults by accessing unmapped pages with the SDMA can still
crash the MC.
The key point is that SDMA can't work with PRT tiles on pre-gmc9 and we
need to forbid access on the application side.
Regards,
Christian.
Am 03.01.19 um 09:54
For pre-gmc9, UMD can only access unmapped PRT tile from CB/TC without
firing VM fault. Kernel would still receive the VM fault interrupt
and output the error message if SDMA is the mc_client.
GMC9 don't need the same since it handle the PRT in different way.
We cannot just skip message for SDMA,
10 matches
Mail list logo
