gpu: nvgpu: Add class numbers to characteristics

Some kernel APIs rely on user space knowing class numbers. Allow
querying the numbers from kernel.

Bug 1567274

Change-Id: Idec2fe8ee983ee74bcbf9dfc98f71bbcc1492cfb
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/594402

1 files changed, 7 insertions, 0 deletions

diff --git a/include/uapi/linux/nvgpu.h b/include/uapi/linux/nvgpu.h
index b7f65d75..6bde9d41 100644
--- a/include/uapi/linux/nvgpu.h
+++ b/include/uapi/linux/nvgpu.h
@@ -122,6 +122,13 @@ struct nvgpu_gpu_characteristics {
 
         __u64 flags;
 
+        __u32 twod_class;
+        __u32 threed_class;
+        __u32 compute_class;
+        __u32 gpfifo_class;
+        __u32 inline_to_memory_class;
+        __u32 dma_copy_class;
+
         /* Notes:
            - This struct can be safely appended with new fields. However, always
              keep the structure size multiple of 8 and make sure that the binary