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| author |   Eric Anholt <eric@anholt.net> | 2015-10-09 20:25:07 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2015-12-07 20:01:56 -0800 |
| commit | c826a6e1064419f78855463cf29ce9e8b9d25bf4 (patch) | |
| tree | 5e14c5eccefaaf37b87684737e852ba87a621d89 /drivers/gpu/drm/vc4/vc4_validate_shaders.c | |
| parent | drm: Create a driver hook for allocating GEM object structs. (diff) | |
| download | linux-dev-c826a6e1064419f78855463cf29ce9e8b9d25bf4.tar.xz linux-dev-c826a6e1064419f78855463cf29ce9e8b9d25bf4.zip | |
drm/vc4: Add a BO cache.
We need to allocate new BOs in the kernel as part of each frame, but
the CMA allocator is way too slow for that. As an optimization, keep
track of recently-freed BOs and reuse them, with a 1 second timeout to
fully free them back to the system.
This improves 3D performance by about 15%.
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_validate_shaders.c')
0 files changed, 0 insertions, 0 deletions