gpu: nvgpu: add submit entry points for kernel and ioctl

gk20a_submit_channel_gpfifo() supports reading the gpfifo entries from
either a kernel buffer or an userspace buffer in an ioctl. Add two
separate entry points: one for the ioctl and another for any other
kernel use. This shortens the function prototypes and simplifies and
clarifies the call sites slightly.

Jira NVGPU-705

Change-Id: If5141a459261a451f78cc50972f4c94d95ba44d1
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1730479
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 23 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/channel.c b/drivers/gpu/nvgpu/os/linux/channel.c
index cc2d525d..a84c5a1c 100644
--- a/drivers/gpu/nvgpu/os/linux/channel.c
+++ b/drivers/gpu/nvgpu/os/linux/channel.c
@@ -752,7 +752,7 @@ out:
         return 0;
 }
 
-int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
+static int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
                                 struct nvgpu_gpfifo_entry *gpfifo,
                                 struct nvgpu_submit_gpfifo_args *args,
                                 u32 num_entries,
@@ -1019,3 +1019,25 @@ clean_up:
         return err;
 }
 
+int gk20a_submit_channel_gpfifo_user(struct channel_gk20a *c,
+                                struct nvgpu_submit_gpfifo_args *args,
+                                u32 num_entries,
+                                u32 flags,
+                                struct nvgpu_channel_fence *fence,
+                                struct gk20a_fence **fence_out,
+                                struct fifo_profile_gk20a *profile)
+{
+        return gk20a_submit_channel_gpfifo(c, NULL, args, num_entries,
+                        flags, fence, fence_out, profile);
+}
+
+int gk20a_submit_channel_gpfifo_kernel(struct channel_gk20a *c,
+                                struct nvgpu_gpfifo_entry *gpfifo,
+                                u32 num_entries,
+                                u32 flags,
+                                struct nvgpu_channel_fence *fence,
+                                struct gk20a_fence **fence_out)
+{
+        return gk20a_submit_channel_gpfifo(c, gpfifo, NULL, num_entries, flags,
+                        fence, fence_out, NULL);
+}