Re: [PATCH i-g-t] tests/gem_exec_basic: don't use gem_require_ring to check ring availability

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On Fri, Jan 29, 2016 at 11:16:37AM +0000, Daniele Ceraolo Spurio wrote:
> 
> 
> On 29/01/16 10:58, Chris Wilson wrote:
> >On Fri, Jan 29, 2016 at 09:21:33AM +0000, daniele.ceraolospurio@xxxxxxxxx wrote:
> >>From: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
> >>
> >>gem_require_ring will submit an execbuf using the provided flags and
> >>skip the test if the ioctl fails. This test is however designed to catch
> >>issues with the ioctl, so it should fail if the ioctl fails on a ring
> >>that the HW possesses.
> >>
> >>Instead of using gem_require_ring we can use the getparam ioctl. The new
> >>checker has been added to the test file and not to the commmon library
> >>because this test is the only special case where we want to not use
> >>gem_has_ring
> >That would be gem_exec_param.
> >-Chris
> 
> I don't understand what you mean, can you elaborate a bit?

For the purposes of checking that the kernel honours the ABI, the tests
belong in gem_exec_params.

For the purposes of CI, a testing going from PASS -> SKIP is just as
indicative of a problem as test going from PASS -> FAIL or any other
state.
 
> What I wanted to fix here is the fact that the logic to skip the
> test and the test itself are identical, which means that this test
> can't fail. As far as I can tell gem_exec_param is trying to catch
> errors in the handling of invalid flags, while in this test we check
> for errors in the handling of valid flags instead.

Basically the logic is repeated, that is not an issue for its purpose.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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