gpu: nvgpu: suspend/resume support for vGPU

- Added suspend/resume power management callbacks for vGPU
- Added suspend/resume commands for communication between vGPU and
  RM server
- Added suspend/resume message parameters for IVC messages between
  vGPU and RM server

JIRA EVLR-2305
JIRA EVLR-2306

Change-Id: I83a314b4e125a53117d16c5ea72dbc5d8ef96ef7
Signed-off-by: Deepak Bhosale <dbhosale@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1735153
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Nirav Patel <nipatel@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/vgpu/vgpu_linux.h b/drivers/gpu/nvgpu/os/linux/vgpu/vgpu_linux.h
index 38379cf2..ff7d3a66 100644
--- a/drivers/gpu/nvgpu/os/linux/vgpu/vgpu_linux.h
+++ b/drivers/gpu/nvgpu/os/linux/vgpu/vgpu_linux.h
@@ -33,6 +33,9 @@ int vgpu_remove(struct platform_device *dev);
 
 void vgpu_create_sysfs(struct device *dev);
 void vgpu_remove_sysfs(struct device *dev);
+
+int vgpu_tegra_suspend(struct device *dev);
+int vgpu_tegra_resume(struct device *dev);
 #else
 /* define placeholders for functions used outside of vgpu */
 
@@ -52,6 +55,14 @@ static inline int vgpu_remove(struct platform_device *dev)
 {
         return -ENOSYS;
 }
+static inline int vgpu_tegra_suspend(struct device *dev)
+{
+        return -ENOSYS;
+}
+static inline int vgpu_tegra_resume(struct device *dev)
+{
+        return -ENOSYS;
+}
 #endif
 
 #endif