1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/gem.h b/drivers/gpu/drm/tegra/gem.h
new file mode 100644
index 0000000000..cb5146a676
--- /dev/null
+++ b/drivers/gpu/drm/tegra/gem.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Tegra host1x GEM implementation
+ *
+ * Copyright (c) 2012-2013, NVIDIA Corporation.
+ */
+
+#ifndef __HOST1X_GEM_H
+#define __HOST1X_GEM_H
+
+#include <linux/host1x.h>
+
+#include <drm/drm.h>
+#include <drm/drm_gem.h>
+
+#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,
+};
+
+enum tegra_bo_sector_layout {
+	TEGRA_BO_SECTOR_LAYOUT_TEGRA,
+	TEGRA_BO_SECTOR_LAYOUT_GPU,
+};
+
+struct tegra_bo_tiling {
+	enum tegra_bo_tiling_mode mode;
+	unsigned long value;
+	enum tegra_bo_sector_layout sector_layout;
+};
+
+struct tegra_bo {
+	struct drm_gem_object gem;
+	struct host1x_bo base;
+	unsigned long flags;
+	struct sg_table *sgt;
+	dma_addr_t iova;
+	void *vaddr;
+
+	struct drm_mm_node *mm;
+	unsigned long num_pages;
+	struct page **pages;
+	/* size of IOMMU mapping */
+	size_t size;
+
+	struct tegra_bo_tiling tiling;
+};
+
+static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)
+{
+	return container_of(gem, struct tegra_bo, gem);
+}
+
+static inline struct tegra_bo *host1x_to_tegra_bo(struct host1x_bo *bo)
+{
+	return container_of(bo, struct tegra_bo, base);
+}
+
+struct tegra_bo *tegra_bo_create(struct drm_device *drm, size_t size,
+				 unsigned long flags);
+struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
+					     struct drm_device *drm,
+					     size_t size,
+					     unsigned long flags,
+					     u32 *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);
+
+extern const struct vm_operations_struct tegra_bo_vm_ops;
+
+int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma);
+int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);
+
+struct dma_buf *tegra_gem_prime_export(struct drm_gem_object *gem,
+				       int flags);
+struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm,
+					      struct dma_buf *buf);
+
+struct host1x_bo *tegra_gem_lookup(struct drm_file *file, u32 handle);
+
+#endif