1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/channel.h b/drivers/gpu/nvgpu/os/linux/channel.h
index 2210678d..e6326fad 100644
--- a/drivers/gpu/nvgpu/os/linux/channel.h
+++ b/drivers/gpu/nvgpu/os/linux/channel.h
@@ -63,6 +63,19 @@ struct nvgpu_os_fence_framework {
         struct sync_timeline *timeline;
 };
 
+struct nvgpu_usermode_bufs_linux {
+        /*
+         * Common low level info of these is stored in nvgpu_mems in
+         * channel_gk20a; these hold lifetimes for the actual dmabuf and its
+         * dma mapping.
+         */
+        struct nvgpu_usermode_buf_linux {
+                struct dma_buf *dmabuf;
+                struct dma_buf_attachment *attachment;
+                struct sg_table *sgt;
+        } gpfifo, userd;
+};
+
 struct nvgpu_channel_linux {
         struct channel_gk20a *ch;
 
@@ -72,6 +85,8 @@ struct nvgpu_channel_linux {
         struct nvgpu_error_notifier error_notifier;
 
         struct dma_buf *cyclestate_buffer_handler;
+
+        struct nvgpu_usermode_bufs_linux usermode;
 };
 
 u32 nvgpu_submit_gpfifo_user_flags_to_common_flags(u32 user_flags);