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gpu: nvgpu: in-kernel kickoff profiling

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Add a debugfs interface to profile the kickoff ioctl
it provides the probability distribution and separates the information
between time spent in: the full ioctl, the kickoff function, the amount
of time spent in job tracking and the amount of time doing pushbuffer
copies

JIRA: EVLR-1003

Change-Id: I9888b114c3fbced61b1cf134c79f7a8afce15f56
Signed-off-by: David Nieto <dmartineznie@nvidia.com>
Reviewed-on: http://git-master/r/1308997
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
David Nieto
2017-02-21 15:36:49 -08:00
committed by mobile promotions
parent b9991767cc
commit b9feba6efc
6 changed files with 289 additions and 8 deletions
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2
drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
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@@ -653,7 +653,7 @@ int gk20a_ce_execute_ops(struct device *dev,
ret = gk20a_submit_channel_gpfifo(ce_ctx->ch, &gpfifo, NULL,
1, submit_flags, &fence,
&ce_cmd_buf_fence_out, false);
&ce_cmd_buf_fence_out, false, NULL);
if (!ret) {
memcpy((void *)(cmd_buf_cpu_va + fence_index),