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| author | Sachit Kadle <skadle@nvidia.com> | 2016-08-15 17:32:39 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2016-10-20 11:14:11 -0400 |
| commit | 733fb79b39869665addcd80ccdf1c15f4a5aaa29 (patch) | |
| tree | b3c9c1ba32406ed9c2af4bebee820e83ea6172e4 /drivers/gpu/nvgpu/vgpu/vgpu.c | |
| parent | 63e8592e06939e20c7b9e56b430353ebbee31ad6 (diff) | |
gpu: nvgpu: add support for pre-allocated resources
Add support for pre-allocation of job tracking resources
w/ new (extended) ioctl. Goal is to avoid dynamic memory
allocation in the submit path. This patch does the following:
1) Intoduces a new ioctl, NVGPU_IOCTL_CHANNEL_ALLOC_GPFIFO_EX,
which enables pre-allocation of tracking resources per job:
a) 2x priv_cmd_entry
b) 2x gk20a_fence
2) Implements circular ring buffer for job
tracking to avoid lock contention between producer
(submitter) and consumer (clean-up)
Bug 1795076
Change-Id: I6b52e5c575871107ff380f9a5790f440a6969347
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Reviewed-on: http://git-master/r/1203300
(cherry picked from commit 9fd270c22b860935dffe244753dabd87454bef39)
Reviewed-on: http://git-master/r/1223934
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/vgpu/vgpu.c')
0 files changed, 0 insertions, 0 deletions