drivers/gpu/drm/omapdrm/omap_gem.h

   1 /*
   2  * omap_gem.h -- OMAP DRM GEM Object Management
   3  *
   4  * Copyright (C) 2011 Texas Instruments
   5  * Author: Rob Clark <rob@ti.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 as published by
   9  * the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef __OMAPDRM_GEM_H__
  21 #define __OMAPDRM_GEM_H__
  22
  23 #include <linux/types.h>
  24
  25 enum dma_data_direction;
  26
  27 struct dma_buf;
  28 struct drm_device;
  29 struct drm_file;
  30 struct drm_gem_object;
  31 struct drm_mode_create_dumb;
  32 struct file;
  33 struct list_head;
  34 struct page;
  35 struct seq_file;
  36 struct vm_area_struct;
  37 struct vm_fault;
  38
  39 union omap_gem_size;
  40
  41 /* Initialization and Cleanup */
  42 void omap_gem_init(struct drm_device *dev);
  43 void omap_gem_deinit(struct drm_device *dev);
  44
  45 #ifdef CONFIG_PM
  46 int omap_gem_resume(struct drm_device *dev);
  47 #endif
  48
  49 #ifdef CONFIG_DEBUG_FS
  50 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
  51 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m);
  52 #endif
  53
  54 /* GEM Object Creation and Deletion */
  55 struct drm_gem_object *omap_gem_new(struct drm_device *dev,
  56                 union omap_gem_size gsize, uint32_t flags);
  57 struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size,
  58                 struct sg_table *sgt);
  59 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
  60                 union omap_gem_size gsize, uint32_t flags, uint32_t *handle);
  61 void omap_gem_free_object(struct drm_gem_object *obj);
  62 void *omap_gem_vaddr(struct drm_gem_object *obj);
  63
  64 /* Dumb Buffers Interface */
  65 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
  66                 uint32_t handle, uint64_t *offset);
  67 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
  68                 struct drm_mode_create_dumb *args);
  69
  70 /* mmap() Interface */
  71 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
  72 int omap_gem_mmap_obj(struct drm_gem_object *obj,
  73                 struct vm_area_struct *vma);
  74 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
  75 size_t omap_gem_mmap_size(struct drm_gem_object *obj);
  76
  77 /* PRIME Interface */
  78 struct dma_buf *omap_gem_prime_export(struct drm_device *dev,
  79                 struct drm_gem_object *obj, int flags);
  80 struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev,
  81                 struct dma_buf *buffer);
  82
  83 int omap_gem_fault(struct vm_fault *vmf);
  84 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll);
  85 void omap_gem_cpu_sync_page(struct drm_gem_object *obj, int pgoff);
  86 void omap_gem_dma_sync_buffer(struct drm_gem_object *obj,
  87                 enum dma_data_direction dir);
  88 int omap_gem_pin(struct drm_gem_object *obj, dma_addr_t *dma_addr);
  89 void omap_gem_unpin(struct drm_gem_object *obj);
  90 int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
  91                 bool remap);
  92 int omap_gem_put_pages(struct drm_gem_object *obj);
  93
  94 uint32_t omap_gem_flags(struct drm_gem_object *obj);
  95 int omap_gem_rotated_dma_addr(struct drm_gem_object *obj, uint32_t orient,
  96                 int x, int y, dma_addr_t *dma_addr);
  97 int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient);
  98
  99 #endif /* __OMAPDRM_GEM_H__ */