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4 Commits

Author SHA1 Message Date
Chris Wilson
9eacbd2acd igt/gem_exec_whisper: Test submission between fds 
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2016-03-11 14:32:36 +00:00
Chris Wilson
6291678f31 igt/gem_exec_whisper: Stop passing NO_RELOC 
We don't preserve the execobj.offset nor set the right values into the
batches between iterations.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2016-03-11 14:21:46 +00:00
Chris Wilson
d99db0990e igt/gem_exec_whisper: Don't forget that 0 is a valid address on full-ppgtt 
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2016-03-11 12:07:20 +00:00
Chris Wilson
5615ab2a9d tests: Add gem_exec_whisper 
A more complicated store variant to stress inter-engine dependencies
(i.e. semaphores and sync). We write a control value from one batch into
the next and then execute it. This is repeated a few times with each
execution happening on a different engine (so the kernel has to
serialise operations between engines) until we finally write the value
out into our scratch buffer where we can check the result, just like a
Chinese whisper.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2016-03-11 11:34:48 +00:00