From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH] tests: Add gem_exec_params
Date: Thu, 24 Apr 2014 12:05:40 +0200
Message-ID: <20140424100540.GC26374@phenom.ffwll.local>
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To: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>, Intel Graphics Development <intel-gfx@lists.freedesktop.org>
List-Id: intel-gfx@lists.freedesktop.org

On Thu, Apr 24, 2014 at 10:55:47AM +0300, Ville Syrj=E4l=E4 wrote:
> On Thu, Apr 24, 2014 at 09:18:24AM +0200, Daniel Vetter wrote:
> > On Thu, Apr 24, 2014 at 8:43 AM, Zhao Yakui <yakui.zhao@intel.com> wrot=
e:
> > > On Wed, 2014-04-23 at 12:32 -0600, Daniel Vetter wrote:
> > >> +     igt_subtest("rel-constants-invalid") {
> > >> +             execbuf.flags =3D I915_EXEC_RENDER | (I915_EXEC_CONSTA=
NTS_REL_SURFACE+1);
> > >> +             RUN_FAIL(EINVAL);
> > >
> > > It seems that the exec.flags is the same as "I915_EXEC_BSD |
> > > I915_EXEC_CONSTANTS_REL_SURFACE). And then it is similar to subtest of
> > > rel-constants-invalid-ring. Not sure whether you are hoping to set the
> > > flag as "I915_EXEC_RENDER | I915_EXEC_CONSTANTS_MASK"?
> > =

> > They're three completely different checks:
> > 1. checks for invalid flags on rings other than RENDER
> > 2. checks for a specific invalid flag which doesn't exist on gen5+ any =
more
> > 3. checks for a completely invalid flag (notice the + 1) on any platform
> =

> I think the point was that I915_EXEC_RENDER+1 =3D=3D I915_EXEC_BSD. Hence
> the +1 is entirely bogus. So you want either
> I915_EXEC_CONSTANTS_REL_SURFACE+(1<<6) or just
> I915_EXEC_CONSTANTS_MASK.

Yeah, pardon for being blind ;-) Will fix up the test and push a fixup.
-Daniel
-- =

Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch