gpu: nvgpu: add support to set channel timeslice

As part of improving GPU scheduling, userspace can now set a
channel's timeslice, within reasonable limits imposed by the
kernel driver.

JIRA VFND-1312
Bug 1729664

Change-Id: I4c3430c43437889b8685f12988d4b967bb7877bb
Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-on: http://git-master/r/1020917
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index faccf04a..8b87c7aa 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -269,6 +269,8 @@ struct gpu_ops {
                 int (*set_runlist_interleave)(struct gk20a *g, u32 id,
                                         bool is_tsg, u32 runlist_id,
                                         u32 new_level);
+                int (*channel_set_timeslice)(struct channel_gk20a *ch,
+                                        u32 timeslice);
         } fifo;
         struct pmu_v {
                 /*used for change of enum zbc update cmd id from ver 0 to ver1*/