gpu: nvgpu: gk20a: Allow in-kernel channel alloc

This patch modifies channel interfaces to allow allocating the
channel for kernel use. This is needed if we want to run a shader
from kernel space.

Bug 1409151

Change-Id: I3544186bb1541120f85e01a19de106ef011c1b11
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/440261
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Lauri Peltonen <lpeltonen@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.h b/drivers/gpu/nvgpu/gk20a/channel_gk20a.h
index 08bc06c2..161d2b83 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.h
@@ -178,5 +178,16 @@ void gk20a_channel_update(struct channel_gk20a *c, int nr_completed);
 void gk20a_init_channel(struct gpu_ops *gops);
 
 int gk20a_wait_channel_idle(struct channel_gk20a *ch);
+struct channel_gk20a *gk20a_open_new_channel(struct gk20a *g);
+void channel_gk20a_unbind(struct channel_gk20a *ch_gk20a);
+
+int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
+                                struct nvhost_gpfifo *gpfifo,
+                                u32 num_entries,
+                                struct nvhost_fence *fence,
+                                u32 flags);
+
+int gk20a_alloc_channel_gpfifo(struct channel_gk20a *c,
+                               struct nvhost_alloc_gpfifo_args *args);
 
 #endif /*__CHANNEL_GK20A_H__*/