gpu: nvgpu: Add no-op stubs for vgpu

Implement empty or -ENOSYS functions for vgpu if
CONFIG_TEGRA_GR_VIRTUALIZATION is not enabled, and remove ifdefs around
the calling code.

Change-Id: Idc75c9bc486d661786bc222bd9e0380aa7766e78
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/552898
Reviewed-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 13 insertions, 26 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index ae108875..b0e8b476 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -59,9 +59,7 @@
 #include "gk20a_scale.h"
 #include "dbg_gpu_gk20a.h"
 #include "hal.h"
-#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
 #include "vgpu/vgpu.h"
-#endif
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/gk20a.h>
@@ -739,21 +737,17 @@ static int gk20a_init_support(struct platform_device *dev)
 static int gk20a_init_client(struct platform_device *dev)
 {
         struct gk20a *g = get_gk20a(dev);
+        struct gk20a_platform *platform = gk20a_get_platform(dev);
         int err;
 
         gk20a_dbg_fn("");
 
-#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
-        {
-                struct gk20a_platform *platform = gk20a_get_platform(dev);
-
-                if (platform->virtual_dev) {
-                        err = vgpu_pm_finalize_poweron(&dev->dev);
-                        if (err)
-                                return err;
-                }
+        if (platform->virtual_dev) {
+                err = vgpu_pm_finalize_poweron(&dev->dev);
+                if (err)
+                        return err;
         }
-#endif
+
 #ifndef CONFIG_PM_RUNTIME
         gk20a_pm_finalize_poweron(&dev->dev);
 #endif
@@ -769,17 +763,15 @@ static int gk20a_init_client(struct platform_device *dev)
 
 static void gk20a_deinit_client(struct platform_device *dev)
 {
+        struct gk20a_platform *platform = gk20a_get_platform(dev);
+
         gk20a_dbg_fn("");
-#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
-        {
-                struct gk20a_platform *platform = gk20a_get_platform(dev);
 
-                if (platform->virtual_dev) {
-                        vgpu_pm_prepare_poweroff(&dev->dev);
-                        return;
-                }
+        if (platform->virtual_dev) {
+                vgpu_pm_prepare_poweroff(&dev->dev);
+                return;
         }
-#endif
+
 #ifndef CONFIG_PM_RUNTIME
         gk20a_pm_prepare_poweroff(&dev->dev);
 #endif
@@ -1442,10 +1434,8 @@ static int gk20a_probe(struct platform_device *dev)
 
         platform_set_drvdata(dev, platform);
 
-#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
         if (platform->virtual_dev)
                 return vgpu_probe(dev);
-#endif
 
         gk20a = kzalloc(sizeof(struct gk20a), GFP_KERNEL);
         if (!gk20a) {
@@ -1590,15 +1580,12 @@ static int gk20a_probe(struct platform_device *dev)
 static int __exit gk20a_remove(struct platform_device *dev)
 {
         struct gk20a *g = get_gk20a(dev);
-#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
         struct gk20a_platform *platform = gk20a_get_platform(dev);
-#endif
+
         gk20a_dbg_fn("");
 
-#ifdef CONFIG_TEGRA_GR_VIRTUALIZATION
         if (platform->virtual_dev)
                 return vgpu_remove(dev);
-#endif
 
 #ifdef CONFIG_INPUT_CFBOOST
         if (g->boost_added)