[PATCH 2/2] drm/amdgpu: export test ring debugfs interface

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On Thu, May 11, 2017 at 10:41:42AM +0800, Deucher, Alexander wrote:
> > -----Original Message-----
> > From: Deucher, Alexander
> > Sent: Wednesday, May 10, 2017 10:38 PM
> > To: Huang, Ray; amd-gfx at lists.freedesktop.org; Koenig, Christian
> > Cc: Zhou, David(ChunMing); Wang, Ken; Huan, Alvin; Huang, Ray
> > Subject: RE: [PATCH 2/2] drm/amdgpu: export test ring debugfs interface
> >
> > > -----Original Message-----
> > > From: Huang Rui [mailto:ray.huang at amd.com]
> > > Sent: Wednesday, May 10, 2017 10:29 PM
> > > To: amd-gfx at lists.freedesktop.org; Deucher, Alexander; Koenig, Christian
> > > Cc: Zhou, David(ChunMing); Wang, Ken; Huan, Alvin; Huang, Ray
> > > Subject: [PATCH 2/2] drm/amdgpu: export test ring debugfs interface
> > >
> > > Signed-off-by: Huang Rui <ray.huang at amd.com>
> >
> > Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
> 
> Not sure if it's important for this since it's debugfs, but we don't have any
> sort of ring locks anymore (since everything should go through the scheduler
> once it's started) so we could theoretically get collisions if there are active
> apps using the GPU and you run these tests.
> 

Right. Any idea to hold on scheduler when I try to run this test?

Thanks,
Rui


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