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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_debugfs.c | |
| parent | 10028c5ab107d3765c7fc282b6c45324d1602155 (diff) | |
| download | blackbird-op-linux-c826a6e1064419f78855463cf29ce9e8b9d25bf4.tar.gz blackbird-op-linux-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_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_debugfs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_debugfs.c b/drivers/gpu/drm/vc4/vc4_debugfs.c index 4297b0a5b74e..6bcf96e9a482 100644 --- a/drivers/gpu/drm/vc4/vc4_debugfs.c +++ b/drivers/gpu/drm/vc4/vc4_debugfs.c @@ -16,6 +16,7 @@ #include "vc4_regs.h" static const struct drm_info_list vc4_debugfs_list[] = { + {"bo_stats", vc4_bo_stats_debugfs, 0}, {"hdmi_regs", vc4_hdmi_debugfs_regs, 0}, {"hvs_regs", vc4_hvs_debugfs_regs, 0}, {"crtc0_regs", vc4_crtc_debugfs_regs, 0, (void *)(uintptr_t)0}, |
