Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / armada / armada_gem.h

diff --git a/kernel/drivers/gpu/drm/armada/armada_gem.h b/kernel/drivers/gpu/drm/armada/armada_gem.h
new file mode 100644 (file)
index 0000000..b000ea3
--- /dev/null
+++ b/kernel/drivers/gpu/drm/armada/armada_gem.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2012 Russell King
+ *
+ * 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 ARMADA_GEM_H
+#define ARMADA_GEM_H
+
+#include <drm/drm_gem.h>
+
+/* GEM */
+struct armada_gem_object {
+       struct drm_gem_object   obj;
+       void                    *addr;
+       phys_addr_t             phys_addr;
+       resource_size_t         dev_addr;
+       struct drm_mm_node      *linear;        /* for linear backed */
+       struct page             *page;          /* for page backed */
+       struct sg_table         *sgt;           /* for imported */
+       void                    (*update)(void *);
+       void                    *update_data;
+};
+
+extern const struct vm_operations_struct armada_gem_vm_ops;
+
+#define drm_to_armada_gem(o) container_of(o, struct armada_gem_object, obj)
+
+void armada_gem_free_object(struct drm_gem_object *);
+int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *);
+void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *);
+struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *,
+       size_t);
+int armada_gem_dumb_create(struct drm_file *, struct drm_device *,
+       struct drm_mode_create_dumb *);
+int armada_gem_dumb_map_offset(struct drm_file *, struct drm_device *,
+       uint32_t, uint64_t *);
+int armada_gem_dumb_destroy(struct drm_file *, struct drm_device *,
+       uint32_t);
+struct dma_buf *armada_gem_prime_export(struct drm_device *dev,
+       struct drm_gem_object *obj, int flags);
+struct drm_gem_object *armada_gem_prime_import(struct drm_device *,
+       struct dma_buf *);
+int armada_gem_map_import(struct armada_gem_object *);
+
+static inline struct armada_gem_object *armada_gem_object_lookup(
+       struct drm_device *dev, struct drm_file *dfile, unsigned handle)
+{
+       struct drm_gem_object *obj = drm_gem_object_lookup(dev, dfile, handle);
+
+       return obj ? drm_to_armada_gem(obj) : NULL;
+}
+#endif