[AMD Official Use Only - Internal Distribution Only]
>-Original Message-
>From: Christian König
>Sent: Tuesday, March 30, 2021 3:24 PM
>To: Deng, Emily ; amd-gfx@lists.freedesktop.org;
>Deucher, Alexander
>Subject: Re: [PATCH 5/6] drm/amdgpu: Disable RPTR write bac
Am 30.03.21 um 09:20 schrieb Deng, Emily:
[AMD Official Use Only - Internal Distribution Only]
-Original Message-
From: Christian König
Sent: Tuesday, March 30, 2021 3:13 PM
To: Deng, Emily ; amd-gfx@lists.freedesktop.org
Subject: Re: [PATCH 5/6] drm/amdgpu: Disable RPTR write back
[AMD Official Use Only - Internal Distribution Only]
>-Original Message-
>From: Christian König
>Sent: Tuesday, March 30, 2021 3:13 PM
>To: Deng, Emily ; amd-gfx@lists.freedesktop.org
>Subject: Re: [PATCH 5/6] drm/amdgpu: Disable RPTR write back for navi12
>
>
&g
Am 30.03.21 um 06:41 schrieb Emily Deng:
It will hit ramdomly sdma hang, and pending on utcl2
address translation when access the RPTR polling address.
According sdma firmware team mentioned, the RPTR writeback is done by
hardware automatically, and will hit issue when clock gating occurs.
