Re: [PATCH] igt tests/gem_exec_params: Test for -EINVAL for invalid platform and ring when executing RS

[Daniel Vetter <daniel@ffwll.ch>]

On Wed, May 07, 2014 at 12:40:13AM +0200, Daniel Vetter wrote:
> On Wed, May 07, 2014 at 12:40:53AM +0300, Abdiel Janulgue wrote:
> > Add test that makes sure RS bit only gets executed on BDW and
> > on the render ring.
> > 
> > Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
> > ---
> >  tests/gem_exec_params.c |   11 +++++++++++
> >  1 file changed, 11 insertions(+)
> > 
> > diff --git a/tests/gem_exec_params.c b/tests/gem_exec_params.c
> > index 769969d..a3f765b 100644
> > --- a/tests/gem_exec_params.c
> > +++ b/tests/gem_exec_params.c
> > @@ -193,6 +193,17 @@ igt_main
> >  		execbuf.num_cliprects = 0;
> >  	}
> >  
> > +	igt_subtest("rs-not-gen8") {
> > +                igt_require(intel_gen(devid) != 8);
> > +                execbuf.flags = I915_EXEC_RENDER | I915_EXEC_RESOURCE_STREAMER;
> > +                RUN_FAIL(EINVAL);
> > +        }
> > +
> > +	igt_subtest("invalid-rs-ring") {
> > +		execbuf.flags = I915_EXEC_RESOURCE_STREAMER;
> > +		RUN_FAIL(EINVAL);
> 
> See Chris comment, but 0 is actually _not_ an invalid ring, but aliases
> RCS. Yeah, we have a fun api. So this should actually suceed, at least on
> bdw (and -EINVAL everywhere else).
> 
> So you need to explicitly test with some other ring like VCS
> (I915_EXEC_BSD).

Also you didn't update the invalid-flag subtest ... I wonder why that
didn't fail on bdw.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch