LXR linux/drivers/gpu/drm/armada/armada

   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 */
  11struct 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
  24extern 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
  28void armada_gem_free_object(struct drm_gem_object *);
  29int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *);
  30void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *);
  31struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *,
  32        size_t);
  33int armada_gem_dumb_create(struct drm_file *, struct drm_device *,
  34        struct drm_mode_create_dumb *);
  35struct dma_buf *armada_gem_prime_export(struct drm_device *dev,
  36        struct drm_gem_object *obj, int flags);
  37struct drm_gem_object *armada_gem_prime_import(struct drm_device *,
  38        struct dma_buf *);
  39int armada_gem_map_import(struct armada_gem_object *);
  40
  41static 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