gpu: nvgpu: gv11b: add fifo_gv11b and usermode_regs

- add fifo_gv11b to store usermode_regs
- consider channel_base and use usermode_regs when ring channel doorbell

It'll make kickoff code re-usable for vgpu.

Jira VFND-3796

Change-Id: Ia6974ccac137f201ad8763a7d372de81d5cca56b
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master/r/1510457
Reviewed-by: Aingara Paramakuru <aparamakuru@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/fifo_t19x.h b/drivers/gpu/nvgpu/fifo_t19x.h
new file mode 100644
index 00000000..531c6f34
--- /dev/null
+++ b/drivers/gpu/nvgpu/fifo_t19x.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef _FIFO_T19X_H_
+#define _FIFO_T19X_H_
+
+struct fifo_t19x {
+        void __iomem *usermode_regs;
+};
+
+#endif