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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-12-22 08:36:08 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-12-27 12:34:00 +0100 |
| commit | a33d42dd03352d2e9d3d2c00bfa435c7a5ebab25 (patch) | |
| tree | a2d74a1f6f6e31bdf0788d24c66feee224056003 /drivers/gpu/drm/Kconfig | |
| parent | cf4a7207b1cb4a3c3fe3aa11a83c9d673722a7f5 (diff) | |
| download | op-kernel-dev-a33d42dd03352d2e9d3d2c00bfa435c7a5ebab25.zip op-kernel-dev-a33d42dd03352d2e9d3d2c00bfa435c7a5ebab25.tar.gz | |
drm: Add a simple generator of random permutations
When testing, we want a random but yet reproducible order in which to
process elements. Here we create an array which is a random (using the
Tausworthe PRNG) permutation of the order in which to execute.
Note these are simple helpers intended to be merged upstream in lib/
v2: Tidier code by David Herrmann
v3: Add reminder that this code is intended to be temporary, with at
least the bulk of the prandom changes going to lib/
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: David Herrmann <dh.herrmann@gmail.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/20161222083641.2691-6-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index ebfe840..45a1c74 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -321,3 +321,7 @@ config DRM_SAVAGE chipset. If M is selected the module will be called savage. endif # DRM_LEGACY + +config DRM_LIB_RANDOM + bool + default n |
