Re: [PATCH] drm/amdgpu: Clean sdma wptr register when only enable wptr polling

2018-03-06 Thread Christian König
Am 06.03.2018 um 10:59 schrieb Emily Deng: The sdma wptr polling memory is not fast enough, then the sdma wptr register will be random, and not equal to sdma rptr, which will cause sdma engine hang when load driver, so clean up the sdma wptr directly to fix this issue. Signed-off-by: Emily Deng

RE: [PATCH] drm/amdgpu: Clean sdma wptr register when only enable wptr polling

2018-03-06 Thread Deng, Emily
To: Deng, Emily <emily.d...@amd.com>; amd-gfx@lists.freedesktop.org > Subject: Re: [PATCH] drm/amdgpu: Clean sdma wptr register when only > enable wptr polling > > How about other sdma version? like sdma v4 etc. > > > Regards, > > David Zhou > > >

Re: [PATCH] drm/amdgpu: Clean sdma wptr register when only enable wptr polling

2018-03-06 Thread Liu, Monk
: Re: [PATCH] drm/amdgpu: Clean sdma wptr register when only enable wptr polling How about other sdma version? like sdma v4 etc. Regards, David Zhou On 2018年03月06日 17:59, Emily Deng wrote: > The sdma wptr polling memory is not fast enough, then the sdma > wptr register will be random, and

Re: [PATCH] drm/amdgpu: Clean sdma wptr register when only enable wptr polling

2018-03-06 Thread zhoucm1
How about other sdma version? like sdma v4 etc. Regards, David Zhou On 2018年03月06日 17:59, Emily Deng wrote: The sdma wptr polling memory is not fast enough, then the sdma wptr register will be random, and not equal to sdma rptr, which will cause sdma engine hang when load driver, so clean

RE: [PATCH] drm/amdgpu: Clean sdma wptr register when only enable wptr polling

2018-03-06 Thread Yu, Xiangliang
Better to add comment above the code. Reviewed-by: Xiangliang Yu > -Original Message- > From: amd-gfx [mailto:amd-gfx-boun...@lists.freedesktop.org] On Behalf > Of Emily Deng > Sent: Tuesday, March 06, 2018 5:17 PM > To: amd-gfx@lists.freedesktop.org > Cc: Deng,