LXR linux/drivers/gpu/drm/drm

   1#ifndef __DRM_LEGACY_H__
   2#define __DRM_LEGACY_H__
   3
   4/*
   5 * Copyright (c) 2014 David Herrmann <dh.herrmann@gmail.com>
   6 *
   7 * Permission is hereby granted, free of charge, to any person obtaining a
   8 * copy of this software and associated documentation files (the "Software"),
   9 * to deal in the Software without restriction, including without limitation
  10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11 * and/or sell copies of the Software, and to permit persons to whom the
  12 * Software is furnished to do so, subject to the following conditions:
  13 *
  14 * The above copyright notice and this permission notice shall be included in
  15 * all copies or substantial portions of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23 * OTHER DEALINGS IN THE SOFTWARE.
  24 */
  25
  26/*
  27 * This file contains legacy interfaces that modern drm drivers
  28 * should no longer be using. They cannot be removed as legacy
  29 * drivers use them, and removing them are API breaks.
  30 */
  31#include <linux/list.h>
  32#include <drm/drm_legacy.h>
  33
  34struct agp_memory;
  35struct drm_device;
  36struct drm_file;
  37
  38/*
  39 * Generic DRM Contexts
  40 */
  41
  42#define DRM_KERNEL_CONTEXT              0
  43#define DRM_RESERVED_CONTEXTS           1
  44
  45void drm_legacy_ctxbitmap_init(struct drm_device *dev);
  46void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev);
  47void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
  48void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file);
  49
  50int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f);
  51int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f);
  52int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f);
  53int drm_legacy_switchctx(struct drm_device *d, void *v, struct drm_file *f);
  54int drm_legacy_newctx(struct drm_device *d, void *v, struct drm_file *f);
  55int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f);
  56
  57int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f);
  58int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f);
  59
  60/*
  61 * Generic Buffer Management
  62 */
  63
  64#define DRM_MAP_HASH_OFFSET 0x10000000
  65
  66int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data,
  67                            struct drm_file *file_priv);
  68int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
  69int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
  70int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f);
  71int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f);
  72int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f);
  73int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f);
  74int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f);
  75int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f);
  76
  77int __drm_legacy_infobufs(struct drm_device *, void *, int *,
  78                          int (*)(void *, int, struct drm_buf_entry *));
  79int __drm_legacy_mapbufs(struct drm_device *, void *, int *,
  80                          void __user **,
  81                          int (*)(void *, int, unsigned long, struct drm_buf *),
  82                          struct drm_file *);
  83
  84#ifdef CONFIG_DRM_VM
  85void drm_legacy_vma_flush(struct drm_device *d);
  86#else
  87static inline void drm_legacy_vma_flush(struct drm_device *d)
  88{
  89        /* do nothing */
  90}
  91#endif
  92
  93/*
  94 * AGP Support
  95 */
  96
  97struct drm_agp_mem {
  98        unsigned long handle;
  99        struct agp_memory *memory;
 100        unsigned long bound;
 101        int pages;
 102        struct list_head head;
 103};
 104
 105/* drm_lock.c */
 106int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f);
 107int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f);
 108void drm_legacy_lock_release(struct drm_device *dev, struct file *filp);
 109
 110/* DMA support */
 111int drm_legacy_dma_setup(struct drm_device *dev);
 112void drm_legacy_dma_takedown(struct drm_device *dev);
 113void drm_legacy_free_buffer(struct drm_device *dev,
 114                            struct drm_buf * buf);
 115void drm_legacy_reclaim_buffers(struct drm_device *dev,
 116                                struct drm_file *filp);
 117
 118/* Scatter Gather Support */
 119void drm_legacy_sg_cleanup(struct drm_device *dev);
 120int drm_legacy_sg_alloc(struct drm_device *dev, void *data,
 121                        struct drm_file *file_priv);
 122int drm_legacy_sg_free(struct drm_device *dev, void *data,
 123                       struct drm_file *file_priv);
 124
 125#endif /* __DRM_LEGACY_H__ */
 126