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gpu: nvgpu: add ioctls to get current timeslice

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Add the following ioctls
- NVGPU_CHANNEL_IOCTL_GET_TIMESLICE for channel timeslice in us
- NVGPU_TSG_IOCTL_GET_TIMESLICE for TSG timeslice in us

If timeslice has not been set explicitly, ioctl returns the
default timeslice that will be used when programming the runlist
entry.

Bug 1883271

Change-Id: Ib18fdd836323b1a2d4efceb1e27d07713bd6fca5
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1469040
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Thomas Fleury
2017-04-19 16:47:13 -07:00
committed by mobile promotions
parent a823c72219
commit b03afb6d5c
13 changed files with 77 additions and 6 deletions
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4
drivers/gpu/nvgpu/common/linux/ioctl_channel.c
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@@ -1125,6 +1125,10 @@ long gk20a_channel_ioctl(struct file *filp,
gk20a_channel_trace_sched_param(
trace_gk20a_channel_set_timeslice, ch);
break;
case NVGPU_IOCTL_CHANNEL_GET_TIMESLICE:
((struct nvgpu_timeslice_args *)buf)->timeslice_us =
gk20a_channel_get_timeslice(ch);
break;
case NVGPU_IOCTL_CHANNEL_SET_PREEMPTION_MODE:
if (ch->g->ops.gr.set_preemption_mode) {
err = gk20a_busy(ch->g);