1 /* 2 * Copyright (C) 2012 Russell King 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8 #ifndef ARMADA_GEM_H 9 #define ARMADA_GEM_H 10 11 #include <drm/drm_gem.h> 12 13 /* GEM */ 14 struct armada_gem_object { 15 struct drm_gem_object obj; 16 void *addr; 17 phys_addr_t phys_addr; 18 resource_size_t dev_addr; 19 struct drm_mm_node *linear; /* for linear backed */ 20 struct page *page; /* for page backed */ 21 struct sg_table *sgt; /* for imported */ 22 void (*update)(void *); 23 void *update_data; 24 }; 25 26 extern const struct vm_operations_struct armada_gem_vm_ops; 27 28 #define drm_to_armada_gem(o) container_of(o, struct armada_gem_object, obj) 29 30 void armada_gem_free_object(struct drm_gem_object *); 31 int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *); 32 void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *); 33 struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *, 34 size_t); 35 int armada_gem_dumb_create(struct drm_file *, struct drm_device *, 36 struct drm_mode_create_dumb *); 37 int armada_gem_dumb_map_offset(struct drm_file *, struct drm_device *, 38 uint32_t, uint64_t *); 39 int armada_gem_dumb_destroy(struct drm_file *, struct drm_device *, 40 uint32_t); 41 struct dma_buf *armada_gem_prime_export(struct drm_device *dev, 42 struct drm_gem_object *obj, int flags); 43 struct drm_gem_object *armada_gem_prime_import(struct drm_device *, 44 struct dma_buf *); 45 int armada_gem_map_import(struct armada_gem_object *); 46 47 static inline struct armada_gem_object *armada_gem_object_lookup( 48 struct drm_device *dev, struct drm_file *dfile, unsigned handle) 49 { 50 struct drm_gem_object *obj = drm_gem_object_lookup(dev, dfile, handle); 51 52 return obj ? drm_to_armada_gem(obj) : NULL; 53 } 54 #endif 55