gpu: nvgpu: use submit callback only in linux code

Move the implementation for channel job update callbacks that is based
on Linux specific work_struct usage to Linux-specific code.

This requires a bit of extra work for allocating OS-specific priv data
for channels which is also done in this patch. The priv data will be
used more when more OS-specific features are moved.

Jira NVGPU-259

Change-Id: I24bc0148a827f375b56a1c96044685affc2d1e8c
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1589321
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 8d6db4c7..11a99bff 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -1255,6 +1255,13 @@ struct gk20a {
                 struct nvgpu_mutex start_lock;
         } channel_worker;
 
+        struct {
+                void (*open)(struct channel_gk20a *ch);
+                void (*close)(struct channel_gk20a *ch);
+                void (*work_completion_signal)(struct channel_gk20a *ch);
+                void (*work_completion_cancel_sync)(struct channel_gk20a *ch);
+        } os_channel;
+
         struct gk20a_scale_profile *scale_profile;
         unsigned long last_freq;