drivers/gpu/drm/drm_legacy.h

   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
  34 struct agp_memory;
  35 struct drm_device;
  36 struct drm_file;
  37
  38 /*
  39  * Generic DRM Contexts
  40  */
  41
  42 #define DRM_KERNEL_CONTEXT              0
  43 #define DRM_RESERVED_CONTEXTS           1
  44
  45 void drm_legacy_ctxbitmap_init(struct drm_device *dev);
  46 void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev);
  47 void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
  48 void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file);
  49
  50 int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f);
  51 int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f);
  52 int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f);
  53 int drm_legacy_switchctx(struct drm_device *d, void *v, struct drm_file *f);
  54 int drm_legacy_newctx(struct drm_device *d, void *v, struct drm_file *f);
  55 int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f);
  56
  57 int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f);
  58 int 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
  66 int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data,
  67                             struct drm_file *file_priv);
  68 int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
  69 int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
  70 int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f);
  71 int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f);
  72 int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f);
  73 int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f);
  74 int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f);
  75 int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f);
  76
  77 int __drm_legacy_infobufs(struct drm_device *, void *, int *,
  78                           int (*)(void *, int, struct drm_buf_entry *));
  79 int __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
  85 void drm_legacy_vma_flush(struct drm_device *d);
  86 #else
  87 static inline void drm_legacy_vma_flush(struct drm_device *d)
  88 {
  89         /* do nothing */
  90 }
  91 #endif
  92
  93 /*
  94  * AGP Support
  95  */
  96
  97 struct 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 */
 106 int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f);
 107 int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f);
 108 void drm_legacy_lock_release(struct drm_device *dev, struct file *filp);
 109
 110 /* DMA support */
 111 int drm_legacy_dma_setup(struct drm_device *dev);
 112 void drm_legacy_dma_takedown(struct drm_device *dev);
 113 void drm_legacy_free_buffer(struct drm_device *dev,
 114                             struct drm_buf * buf);
 115 void drm_legacy_reclaim_buffers(struct drm_device *dev,
 116                                 struct drm_file *filp);
 117
 118 /* Scatter Gather Support */
 119 void drm_legacy_sg_cleanup(struct drm_device *dev);
 120 int drm_legacy_sg_alloc(struct drm_device *dev, void *data,
 121                         struct drm_file *file_priv);
 122 int drm_legacy_sg_free(struct drm_device *dev, void *data,
 123                        struct drm_file *file_priv);
 124
 125 #endif /* __DRM_LEGACY_H__ */