[Intel-gfx] [PATCH] drm/i915: fix the dequeue logic for single_port_submission context

[He, Min]

> -----Original Message-----
> From: Chris Wilson [mailto:chris at chris-wilson.co.uk]
> Sent: Wednesday, November 16, 2016 2:52 PM
> To: He, Min <min.he at intel.com>
> Cc: intel-gfx at lists.freedesktop.org
> Subject: Re: [Intel-gfx] [PATCH] drm/i915: fix the dequeue logic for
> single_port_submission context
> 
> On Wed, Nov 16, 2016 at 02:11:16PM +0800, Min He wrote:
> > For a singl_port_submission context, it can only be submitted to port 0,
> > and there shouldn't be any other context in port 1 at the same time.
> > This patch is to implement the correct logic in execlists_dequeue.
> 
> There's a simpler fix. (Other than fixing the root cause of the bug in
> gvt.)
Can you describe this simpler fix? Thanks.

> -Chris
> 
> --
> Chris Wilson, Intel Open Source Technology Centre