Thomas Fleury 56f56b5cd9 gpu: nvgpu: hal for timestamps correlation ...

In order to perform timestamps correlation for FECS
traces, we need to collect GPU / GPU timestamps
samples. In virtualization case, it is possible for
a guest to get GPU timestamps by using read_ptimer.
However, if the CPU timestamp is read on guest side,
and the GPU timestamp is read on vm-server side,
then it introduces some latency that will create an
artificial offset for GPU timestamps (~2 us in
average). For better CPU / GPU timestamps correlation,
Added a command to collect all timestamps on vm-server
side.

Bug 1900475

Change-Id: Idfdc6ae4c16c501dc5e00053a5b75932c55148d6
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1472447
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Aparna Das <aparnad@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

2017-05-23 14:14:46 -07:00

..

gk20a.h

gpu: nvgpu: add CONFIG_PM check for do_idle()

2016-05-04 11:18:28 -07:00

tegra_vgpu_t18x.h

include: linux: import tegra_vgpu_t18x.h from kernel-t18x

2016-12-27 15:22:11 +05:30

tegra_vgpu.h

gpu: nvgpu: hal for timestamps correlation

2017-05-23 14:14:46 -07:00