drm/tegra: Implement more tiling modes

Tegra124 supports a block-linear mode in addition to the regular pitch
linear and tiled modes. Add support for these by moving the internal
representation into a structure rather than a simple flag.

Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

1 files changed, 14 insertions, 2 deletions

diff --git a/drivers/gpu/drm/tegra/gem.h b/drivers/gpu/drm/tegra/gem.h
index 2f3fe96c5154..43a25c853357 100644
--- a/drivers/gpu/drm/tegra/gem.h
+++ b/drivers/gpu/drm/tegra/gem.h
@@ -16,8 +16,18 @@
 #include <drm/drm.h>
 #include <drm/drmP.h>
 
-#define TEGRA_BO_TILED     (1 << 0)
-#define TEGRA_BO_BOTTOM_UP (1 << 1)
+#define TEGRA_BO_BOTTOM_UP (1 << 0)
+
+enum tegra_bo_tiling_mode {
+        TEGRA_BO_TILING_MODE_PITCH,
+        TEGRA_BO_TILING_MODE_TILED,
+        TEGRA_BO_TILING_MODE_BLOCK,
+};
+
+struct tegra_bo_tiling {
+        enum tegra_bo_tiling_mode mode;
+        unsigned long value;
+};
 
 struct tegra_bo {
         struct drm_gem_object gem;
@@ -26,6 +36,8 @@ struct tegra_bo {
         struct sg_table *sgt;
         dma_addr_t paddr;
         void *vaddr;
+
+        struct tegra_bo_tiling tiling;
 };
 
 static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)