On 2016.11.16 22:05:04 +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 > is required by GVT-g context to have an opportunity to save/restore some > non-hw context render registers. > This patch is to implement the correct logic in execlists_dequeue. > > v2: optimized code by following Chris's advice, and added more comments to > explain the patch. > v3: followed the coding style. > > Signed-off-by: Min He <min.he@xxxxxxxxx> > Signed-off-by: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> > --- Hi, Min, like Daniel said not need to add my s-o-b. > drivers/gpu/drm/i915/intel_lrc.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c > index f50feaa..b2c0d50 100644 > --- a/drivers/gpu/drm/i915/intel_lrc.c > +++ b/drivers/gpu/drm/i915/intel_lrc.c > @@ -499,7 +499,8 @@ static void execlists_dequeue(struct intel_engine_cs *engine) > * context (even though a different request) to > * the second port. > */ > - if (ctx_single_port_submission(cursor->ctx)) > + if (ctx_single_port_submission(last->ctx) || > + ctx_single_port_submission(cursor->ctx)) > break; > > GEM_BUG_ON(last->ctx == cursor->ctx); > -- > 1.9.1 > Reviewed-by: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> -- Open Source Technology Center, Intel ltd. $gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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