drm/i915/selftests: ring all doorbells in igt_guc_doorbells

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We currently verify that all doorbells can be registered with GuC and
HW but don't check that all works as expected after a db ring.

Do a nop ring of all doorbells to make sure we haven't misprogrammed
any WQ or stage descriptor data. This will also help validating
upcoming changes in the db programming flow.

Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Acked-by: Katarzyna Dec <katarzyna.dec@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180827223614.22789-1-daniele.ceraolospurio@intel.com

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Daniele Ceraolo Spurio 2018-08-27 15:36:14 -07:00 • committed by Chris Wilson

parent 65df9c7947

commit 5382bed38f

4 changed files with 59 additions and 9 deletions

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1

drivers/gpu/drm/i915/intel_guc_fwif.h

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25

drivers/gpu/drm/i915/intel_guc_submission.c

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4

drivers/gpu/drm/i915/intel_guc_submission.h

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38

drivers/gpu/drm/i915/selftests/intel_guc.c

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