[Intel-gfx] [PATCH i-g-t] kms_rotation_crc: 90 degree flip test is not a stress test

[Chris Wilson]

Quoting Tvrtko Ursulin (2017-08-03 13:42:50)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> To the best of my recollection the page flipping test was added
> simply to start exercising page flips with 90/270 rotation.
> 
> There is no need to do 60 flips which can take quite some time
> because we test each pipe and then each fb geometry. And
> calling this a stress test is also not matching the original
> idea of the test.
> 
> So remove the stress from the name and reduce the number of
> flips to three only.

Considering this found a bug, do we have an explicit test that says a
rotated page flip takes no longer than a vblank (given the right
conditions, i.e subsequent flips)?
-Chris