LXR linux/drivers/gpu/drm/omapdrm/omap

   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
  25enum dma_data_direction;
  26
  27struct dma_buf;
  28struct drm_device;
  29struct drm_file;
  30struct drm_gem_object;
  31struct drm_mode_create_dumb;
  32struct file;
  33struct list_head;
  34struct page;
  35struct seq_file;
  36struct vm_area_struct;
  37struct vm_fault;
  38
  39union omap_gem_size;
  40
  41/* Initialization and Cleanup */
  42void omap_gem_init(struct drm_device *dev);
  43void omap_gem_deinit(struct drm_device *dev);
  44
  45#ifdef CONFIG_PM
  46int omap_gem_resume(struct drm_device *dev);
  47#endif
  48
  49#ifdef CONFIG_DEBUG_FS
  50void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
  51void omap_gem_describe_objects(struct list_head *list, struct seq_file *m);
  52#endif
  53
  54/* GEM Object Creation and Deletion */
  55struct drm_gem_object *omap_gem_new(struct drm_device *dev,
  56                union omap_gem_size gsize, u32 flags);
  57struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size,
  58                struct sg_table *sgt);
  59int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
  60                union omap_gem_size gsize, u32 flags, u32 *handle);
  61void omap_gem_free_object(struct drm_gem_object *obj);
  62void *omap_gem_vaddr(struct drm_gem_object *obj);
  63
  64/* Dumb Buffers Interface */
  65int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
  66                u32 handle, u64 *offset);
  67int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
  68                struct drm_mode_create_dumb *args);
  69
  70/* mmap() Interface */
  71int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
  72int omap_gem_mmap_obj(struct drm_gem_object *obj,
  73                struct vm_area_struct *vma);
  74u64 omap_gem_mmap_offset(struct drm_gem_object *obj);
  75size_t omap_gem_mmap_size(struct drm_gem_object *obj);
  76
  77/* PRIME Interface */
  78struct dma_buf *omap_gem_prime_export(struct drm_device *dev,
  79                struct drm_gem_object *obj, int flags);
  80struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev,
  81                struct dma_buf *buffer);
  82
  83int omap_gem_fault(struct vm_fault *vmf);
  84int omap_gem_roll(struct drm_gem_object *obj, u32 roll);
  85void omap_gem_cpu_sync_page(struct drm_gem_object *obj, int pgoff);
  86void omap_gem_dma_sync_buffer(struct drm_gem_object *obj,
  87                enum dma_data_direction dir);
  88int omap_gem_pin(struct drm_gem_object *obj, dma_addr_t *dma_addr);
  89void omap_gem_unpin(struct drm_gem_object *obj);
  90int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
  91                bool remap);
  92int omap_gem_put_pages(struct drm_gem_object *obj);
  93
  94u32 omap_gem_flags(struct drm_gem_object *obj);
  95int omap_gem_rotated_dma_addr(struct drm_gem_object *obj, u32 orient,
  96                int x, int y, dma_addr_t *dma_addr);
  97int omap_gem_tiled_stride(struct drm_gem_object *obj, u32 orient);
  98
  99#endif /* __OMAPDRM_GEM_H__ */
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