Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / tegra / gem.h

diff --git a/kernel/drivers/gpu/drm/tegra/gem.h b/kernel/drivers/gpu/drm/tegra/gem.h
new file mode 100644 (file)
index 0000000..6c5f12a
--- /dev/null
+++ b/kernel/drivers/gpu/drm/tegra/gem.h
@@ -0,0 +1,78 @@
+/*
+ * Tegra host1x GEM implementation
+ *
+ * Copyright (c) 2012-2013, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __HOST1X_GEM_H
+#define __HOST1X_GEM_H
+
+#include <linux/host1x.h>
+
+#include <drm/drm.h>
+#include <drm/drmP.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,
+};
+
+struct tegra_bo_tiling {
+       enum tegra_bo_tiling_mode mode;
+       unsigned long value;
+};
+
+struct tegra_bo {
+       struct drm_gem_object gem;
+       struct host1x_bo base;
+       unsigned long flags;
+       struct sg_table *sgt;
+       dma_addr_t paddr;
+       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);
+}
+
+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);
+int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
+                            u32 handle, u64 *offset);
+
+int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);
+
+extern const struct vm_operations_struct tegra_bo_vm_ops;
+
+struct dma_buf *tegra_gem_prime_export(struct drm_device *drm,
+                                      struct drm_gem_object *gem,
+                                      int flags);
+struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm,
+                                             struct dma_buf *buf);
+
+#endif