1 files changed, 17 insertions, 1 deletions

diff --git a/include/uapi/linux/nvgpu.h b/include/uapi/linux/nvgpu.h
index 0fa04f6b..38139524 100644
--- a/include/uapi/linux/nvgpu.h
+++ b/include/uapi/linux/nvgpu.h
@@ -1514,8 +1514,24 @@ struct nvgpu_channel_setup_bind_args {
 #define NVGPU_CHANNEL_SETUP_BIND_FLAGS_DETERMINISTIC    (1 << 1)
 /* enable replayable gmmu faults for this channel */
 #define NVGPU_CHANNEL_SETUP_BIND_FLAGS_REPLAYABLE_FAULTS_ENABLE   (1 << 2)
+/*
+ * Enable usermode submits on this channel.
+ *
+ * Submits in usermode are supported in some environments. If supported and
+ * this flag is set + USERD and GPFIFO buffers are provided here, a submit
+ * token is passed back to be written in the doorbell register in the usermode
+ * region to notify the GPU for new work on this channel. Usermode and
+ * kernelmode submit modes are mutually exclusive; by passing this flag, the
+ * SUBMIT_GPFIFO IOCTL cannot be used.
+ */
+#define NVGPU_CHANNEL_SETUP_BIND_FLAGS_USERMODE_SUPPORT (1 << 3)
         __u32 flags;
-        __u32 reserved[16];
+        __s32 userd_dmabuf_fd;  /* in */
+        __s32 gpfifo_dmabuf_fd; /* in */
+        __u32 work_submit_token; /* out */
+        __u64 userd_dmabuf_offset; /* in */
+        __u64 gpfifo_dmabuf_offset; /* in */
+        __u32 reserved[9];
 };
 struct nvgpu_fence {
         __u32 id;        /* syncpoint id or sync fence fd */