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

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * omap_gem.h -- OMAP DRM GEM Object Management
   4 *
   5 * Copyright (C) 2011 Texas Instruments
   6 * Author: Rob Clark <rob@ti.com>
   7 */
   8
   9#ifndef __OMAPDRM_GEM_H__
  10#define __OMAPDRM_GEM_H__
  11
  12#include <linux/types.h>
  13#include <linux/mm_types.h>
  14
  15enum dma_data_direction;
  16
  17struct dma_buf;
  18struct drm_device;
  19struct drm_file;
  20struct drm_gem_object;
  21struct drm_mode_create_dumb;
  22struct file;
  23struct list_head;
  24struct page;
  25struct seq_file;
  26struct vm_area_struct;
  27struct vm_fault;
  28
  29union omap_gem_size;
  30
  31/* Initialization and Cleanup */
  32void omap_gem_init(struct drm_device *dev);
  33void omap_gem_deinit(struct drm_device *dev);
  34
  35#ifdef CONFIG_PM
  36int omap_gem_resume(struct drm_device *dev);
  37#endif
  38
  39#ifdef CONFIG_DEBUG_FS
  40void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
  41void omap_gem_describe_objects(struct list_head *list, struct seq_file *m);
  42#endif
  43
  44/* GEM Object Creation and Deletion */
  45struct drm_gem_object *omap_gem_new(struct drm_device *dev,
  46                union omap_gem_size gsize, u32 flags);
  47struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size,
  48                struct sg_table *sgt);
  49int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
  50                union omap_gem_size gsize, u32 flags, u32 *handle);
  51void *omap_gem_vaddr(struct drm_gem_object *obj);
  52
  53/* Dumb Buffers Interface */
  54int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
  55                u32 handle, u64 *offset);
  56int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
  57                struct drm_mode_create_dumb *args);
  58
  59/* mmap() Interface */
  60int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
  61int omap_gem_mmap_obj(struct drm_gem_object *obj,
  62                struct vm_area_struct *vma);
  63u64 omap_gem_mmap_offset(struct drm_gem_object *obj);
  64size_t omap_gem_mmap_size(struct drm_gem_object *obj);
  65
  66/* PRIME Interface */
  67struct dma_buf *omap_gem_prime_export(struct drm_gem_object *obj, int flags);
  68struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev,
  69                struct dma_buf *buffer);
  70
  71int omap_gem_roll(struct drm_gem_object *obj, u32 roll);
  72void omap_gem_cpu_sync_page(struct drm_gem_object *obj, int pgoff);
  73void omap_gem_dma_sync_buffer(struct drm_gem_object *obj,
  74                enum dma_data_direction dir);
  75int omap_gem_pin(struct drm_gem_object *obj, dma_addr_t *dma_addr);
  76void omap_gem_unpin(struct drm_gem_object *obj);
  77int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
  78                bool remap);
  79int omap_gem_put_pages(struct drm_gem_object *obj);
  80
  81u32 omap_gem_flags(struct drm_gem_object *obj);
  82int omap_gem_rotated_dma_addr(struct drm_gem_object *obj, u32 orient,
  83                int x, int y, dma_addr_t *dma_addr);
  84int omap_gem_tiled_stride(struct drm_gem_object *obj, u32 orient);
  85
  86#endif /* __OMAPDRM_GEM_H__ */
  87