drm/tegra: Add support for tiled buffer objects

The gr2d and gr3d engines work more efficiently on buffers with a tiled
memory layout. Allow created buffers to be marked as tiled so that the
display controller can scan them out properly.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>

1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/gpu/drm/tegra/gem.h b/drivers/gpu/drm/tegra/gem.h
index 2b54f1425d5e..c4993fc2c3bd 100644
--- a/drivers/gpu/drm/tegra/gem.h
+++ b/drivers/gpu/drm/tegra/gem.h
@@ -24,9 +24,12 @@
 #include <drm/drm.h>
 #include <drm/drmP.h>
 
+#define TEGRA_BO_TILED (1 << 0)
+
 struct tegra_bo {
         struct drm_gem_object gem;
         struct host1x_bo base;
+        unsigned long flags;
         dma_addr_t paddr;
         void *vaddr;
 };
@@ -38,11 +41,13 @@ static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)
 
 extern const struct host1x_bo_ops tegra_bo_ops;
 
-struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size);
+struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
+                                 unsigned long flags);
 struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
-                                            struct drm_device *drm,
-                                            unsigned int size,
-                                            unsigned int *handle);
+                                             struct drm_device *drm,
+                                             unsigned int size,
+                                             unsigned long flags,
+                                             unsigned int *handle);
 void tegra_bo_free_object(struct drm_gem_object *gem);
 int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
                          struct drm_mode_create_dumb *args);