gpu: nvgpu: add ioctls to get current timeslice

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>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/fifo_gm20b.c b/drivers/gpu/nvgpu/gm20b/fifo_gm20b.c
index ed3a4b98..513f250d 100644
--- a/drivers/gpu/nvgpu/gm20b/fifo_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/fifo_gm20b.c
@@ -195,6 +195,7 @@ void gm20b_init_fifo(struct gpu_ops *gops)
         gops->fifo.setup_ramfc = gk20a_fifo_setup_ramfc;
         gops->fifo.channel_set_priority = gk20a_fifo_set_priority;
         gops->fifo.channel_set_timeslice = gk20a_fifo_set_timeslice;
+        gops->fifo.default_timeslice_us = gk20a_fifo_default_timeslice_us;
         gops->fifo.setup_userd = gk20a_fifo_setup_userd;
         gops->fifo.userd_gp_get = gk20a_fifo_userd_gp_get;
         gops->fifo.userd_gp_put = gk20a_fifo_userd_gp_put;