gpu: nvgpu: support gk20a virtualization

The nvgpu driver now supports using the Tegra graphics virtualization
interfaces to support gk20a in a virtualized environment.

Bug 1509608

Change-Id: I6ede15ee7bf0b0ad8a13e8eb5f557c3516ead676
Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-on: http://git-master/r/440122
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/vgpu.h b/drivers/gpu/nvgpu/vgpu/vgpu.h
new file mode 100644
index 00000000..445a1c90
--- /dev/null
+++ b/drivers/gpu/nvgpu/vgpu/vgpu.h
@@ -0,0 +1,41 @@
+/*
+ * Virtualized GPU Interfaces
+ *
+ * Copyright (c) 2014, 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 _VIRT_H_
+#define _VIRT_H_
+
+#include <linux/tegra_gr_comm.h>
+#include <linux/tegra_vgpu.h>
+#include "gk20a/gk20a.h"
+
+int vgpu_pm_prepare_poweroff(struct device *dev);
+int vgpu_pm_finalize_poweron(struct device *dev);
+int vgpu_probe(struct platform_device *dev);
+int vgpu_remove(struct platform_device *dev);
+u64 vgpu_bar1_map(struct gk20a *g, struct sg_table **sgt, u64 size);
+int vgpu_gr_isr(struct gk20a *g, struct tegra_vgpu_gr_intr_info *info);
+void vgpu_init_fifo_ops(struct gpu_ops *gops);
+void vgpu_init_gr_ops(struct gpu_ops *gops);
+void vgpu_init_ltc_ops(struct gpu_ops *gops);
+void vgpu_init_mm_ops(struct gpu_ops *gops);
+int vgpu_init_mm_support(struct gk20a *g);
+int vgpu_init_gr_support(struct gk20a *g);
+int vgpu_init_fifo_support(struct gk20a *g);
+
+int vgpu_get_attribute(u64 handle, u32 attrib, u32 *value);
+int vgpu_comm_sendrecv(struct tegra_vgpu_cmd_msg *msg, size_t size_in,
+                size_t size_out);
+
+#endif