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_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
 67int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
 68int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f);
 69int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f);
 70int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f);
 71int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f);
 72int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f);
 73int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f);
 74
 75void drm_legacy_vma_flush(struct drm_device *d);
 76
 77/*
 78 * AGP Support
 79 */
 80
 81struct drm_agp_mem {
 82	unsigned long handle;
 83	struct agp_memory *memory;
 84	unsigned long bound;
 85	int pages;
 86	struct list_head head;
 87};
 88
 89/*
 90 * Generic Userspace Locking-API
 91 */
 92
 93int drm_legacy_i_have_hw_lock(struct drm_device *d, struct drm_file *f);
 94int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f);
 95int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f);
 96int drm_legacy_lock_free(struct drm_lock_data *lock, unsigned int ctx);
 97
 98/* DMA support */
 99int drm_legacy_dma_setup(struct drm_device *dev);
100void drm_legacy_dma_takedown(struct drm_device *dev);
101void drm_legacy_free_buffer(struct drm_device *dev,
102			    struct drm_buf * buf);
103void drm_legacy_reclaim_buffers(struct drm_device *dev,
104				struct drm_file *filp);
105
106/* Scatter Gather Support */
107void drm_legacy_sg_cleanup(struct drm_device *dev);
108int drm_legacy_sg_alloc(struct drm_device *dev, void *data,
109			struct drm_file *file_priv);
110int drm_legacy_sg_free(struct drm_device *dev, void *data,
111		       struct drm_file *file_priv);
112
113#endif /* __DRM_LEGACY_H__ */