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, 9 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
index 6dd0c0db..e6ed9898 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
@@ -151,6 +151,12 @@ struct gk20a_platform {
          * of the CPU.
          */
         void (*dump_platform_dependencies)(struct platform_device *dev);
+
+#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
+        bool virtual_dev;
+        u64 virt_handle;
+        struct task_struct *intr_handler;
+#endif
 };
 
 static inline struct gk20a_platform *gk20a_get_platform(
@@ -163,6 +169,9 @@ extern struct gk20a_platform gk20a_generic_platform;
 #ifdef CONFIG_TEGRA_GK20A
 extern struct gk20a_platform gk20a_tegra_platform;
 extern struct gk20a_platform gm20b_tegra_platform;
+#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
+extern struct gk20a_platform vgpu_tegra_platform;
+#endif
 #endif
 
 static inline bool gk20a_platform_has_syncpoints(struct platform_device *dev)