1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2012 Russell King 4 */ 5 #ifndef ARMADA_GEM_H 6 #define ARMADA_GEM_H 7 8 #include <drm/drm_gem.h> 9 10 /* GEM */ 11 struct armada_gem_object { 12 struct drm_gem_object obj; 13 void *addr; 14 phys_addr_t phys_addr; 15 resource_size_t dev_addr; 16 bool mapped; 17 struct drm_mm_node *linear; /* for linear backed */ 18 struct page *page; /* for page backed */ 19 struct sg_table *sgt; /* for imported */ 20 void (*update)(void *); 21 void *update_data; 22 }; 23 24 extern const struct vm_operations_struct armada_gem_vm_ops; 25 26 #define drm_to_armada_gem(o) container_of(o, struct armada_gem_object, obj) 27 28 void armada_gem_free_object(struct drm_gem_object *); 29 int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *); 30 void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *); 31 struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *, 32 size_t); 33 int armada_gem_dumb_create(struct drm_file *, struct drm_device *, 34 struct drm_mode_create_dumb *); 35 struct dma_buf *armada_gem_prime_export(struct drm_device *dev, 36 struct drm_gem_object *obj, int flags); 37 struct drm_gem_object *armada_gem_prime_import(struct drm_device *, 38 struct dma_buf *); 39 int armada_gem_map_import(struct armada_gem_object *); 40 41 static inline struct armada_gem_object *armada_gem_object_lookup( 42 struct drm_file *dfile, unsigned handle) 43 { 44 struct drm_gem_object *obj = drm_gem_object_lookup(dfile, handle); 45 46 return obj ? drm_to_armada_gem(obj) : NULL; 47 } 48 #endif 49