drm: Add some kselftests for the DRM range manager (struct drm_mm)

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First we introduce a smattering of infrastructure for writing selftests.
The idea is that we have a test module that exercises a particular
portion of the exported API, and that module provides a set of tests
that can either be run as an ensemble via kselftest or individually via
an igt harness (in this case igt/drm_mm). To accommodate selecting
individual tests, we export a boolean parameter to control selection of
each test - that is hidden inside a bunch of reusable boilerplate macros
to keep writing the tests simple.

v2: Choose a random random_seed unless one is specified by the user.
v3: More parameters to control max_iterations and max_prime of the
tests.

Testcase: igt/drm_mm
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-7-chris@chris-wilson.co.uk

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Chris Wilson 2016-12-22 08:36:09 +00:00 • committed by Daniel Vetter

parent a33d42dd03

commit 50f0033d1a

7 changed files with 247 additions and 0 deletions

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15

drivers/gpu/drm/Kconfig

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drivers/gpu/drm/Makefile

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drivers/gpu/drm/selftests/drm_mm_selftests.h

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drivers/gpu/drm/selftests/drm_selftest.c

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drivers/gpu/drm/selftests/drm_selftest.h

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drivers/gpu/drm/selftests/test-drm_mm.c

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tools/testing/selftests/drivers/gpu/drm_mm.sh Executable file

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