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| author | Sami Kiminki <skiminki@nvidia.com> | 2015-04-20 11:12:22 -0400 |
|---|---|---|
| committer | Terje Bergstrom <tbergstrom@nvidia.com> | 2015-06-30 11:35:23 -0400 |
| commit | e7ba93fefbc4df9663302d240f9fbd5967a75a3c (patch) | |
| tree | e38de3af69153d860d9cb666fb30be262321b198 /drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c | |
| parent | ae7b988b0d8767cfbc2cffe4c7ec8757e4dd94a6 (diff) | |
gpu: nvgpu: Initial MAP_BUFFER_BATCH implementation
Add batch support for mapping and unmapping. Batching essentially
helps transform some per-map/unmap overhead to per-batch overhead,
namely gk20a_busy()/gk20a_idle() calls, GPU L2 flushes, and GPU TLB
invalidates. Batching with size 64 has been measured to yield >20x
speed-up in low-level fixed-address mapping microbenchmarks.
Bug 1614735
Bug 1623949
Change-Id: Ie22b9caea5a7c3fc68a968d1b7f8488dfce72085
Signed-off-by: Sami Kiminki <skiminki@nvidia.com>
Reviewed-on: http://git-master/r/733231
(cherry picked from commit de4a7cfb93e8228a4a0c6a2815755a8df4531c91)
Reviewed-on: http://git-master/r/763812
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c')
0 files changed, 0 insertions, 0 deletions