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tests/pm_sseu: Create new test pm_sseu

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New test pm_sseu is intended for any subtest related to the
slice/subslice/EU power gating feature. The sole initial subtest,
'full-enable', confirms that the slice/subslice/EU state is at
full enablement when the render engine is active. Starting with
Gen9 SKL, the render power gating feature can leave SSEU in a
partially enabled state upon resumption of render work unless
explicit action is taken.

v2: Add test description and apply recommendations of igt.cocci
    (Thomas Wood).
v3: Skip instead of fail if debugfs entry i915_sseu_status is not
    available.

Signed-off-by: Jeff McGee <jeff.mcgee@intel.com>
Tested-by: Lei Liu <lei.a.liu@intel.com>
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
This commit is contained in:
Jeff McGee
2015-03-24 16:20:19 -07:00
committed by Thomas Wood
parent aef4605f7c
commit 07707aff75
3 changed files with 378 additions and 0 deletions
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tests/Makefile.sources
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@@ -86,6 +86,7 @@ TESTS_progs_M = \
pm_rpm \
pm_rps \
pm_rc6_residency \
pm_sseu \
prime_self_import \
template \
$(NULL)