[Bug 109303] [CI][SHARDS] igt@i915_query@query-topology-known-pci-ids - skip - Test requirement: IS_HASWELL(devid) || IS_BROADWELL(devid) || IS_SKYLAKE(devid) || IS_KABYLAKE(devid) || IS_COFFEELAKE(devid), SKIP

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=109303

Chris Wilson <chris@chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |NOTABUG

--- Comment #3 from Chris Wilson <chris@chris-wilson.co.uk> ---
(In reply to Lionel Landwerlin from comment #2)
> (In reply to Martin Peres from comment #0)
> > https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_5388/shard-iclb2/
> > igt@i915_query@query-topology-known-pci-ids.html
> > 
> > Test requirement: IS_HASWELL(devid) || IS_BROADWELL(devid) ||
> > IS_SKYLAKE(devid) || IS_KABYLAKE(devid) || IS_COFFEELAKE(devid)
> > Subtest query-topology-known-pci-ids: SKIP (0.000s)
> > 
> > I doubt that this would only be supported on these platforms and not on CNL
> > and ICL.
> 
> It does only support haswell/gen8/gen9 because that's the only place where
> based off the GT we can deduct the number of slices/subslices and do some
> actual checks on the values returned by i915.
> On gen10+ fusing is a lot more fuzzy.
> 
> One way to extend coverage would be to beef up lib/intel_device_info.c to
> contain information about the topology of the device.

Not really, I think. The purpose of the topology i915_query is precisely to
retrieve the more flexible configurations that are not simply defined in static
pci-id tables.

So long as we have sanity checks on the ioctl to catch garbage returns; along
with the static checks to make sure known configs are reported, that seems like
we have our boundary conditions covered.

If were possible to use the topology and verify that matches hw, that would be
a useful test (I presume that would also closely match use).

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