291 lines
10 KiB
C
291 lines
10 KiB
C
#ifndef __DRM_LEGACY_H__
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#define __DRM_LEGACY_H__
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/*
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* Copyright (c) 2014 David Herrmann <dh.herrmann@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* This file contains legacy interfaces that modern drm drivers
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* should no longer be using. They cannot be removed as legacy
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* drivers use them, and removing them are API breaks.
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*/
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#include <linux/list.h>
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#include <drm/drm.h>
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#include <drm/drm_device.h>
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#include <drm/drm_legacy.h>
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struct agp_memory;
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struct drm_buf_desc;
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struct drm_device;
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struct drm_file;
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struct drm_hash_item;
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struct drm_open_hash;
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/*
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* Hash-table Support
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*/
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#define drm_hash_entry(_ptr, _type, _member) container_of(_ptr, _type, _member)
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/* drm_hashtab.c */
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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int drm_ht_create(struct drm_open_hash *ht, unsigned int order);
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int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item);
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int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,
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unsigned long seed, int bits, int shift,
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unsigned long add);
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int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key, struct drm_hash_item **item);
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void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key);
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int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key);
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int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item);
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void drm_ht_remove(struct drm_open_hash *ht);
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#endif
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/*
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* RCU-safe interface
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*
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* The user of this API needs to make sure that two or more instances of the
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* hash table manipulation functions are never run simultaneously.
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* The lookup function drm_ht_find_item_rcu may, however, run simultaneously
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* with any of the manipulation functions as long as it's called from within
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* an RCU read-locked section.
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*/
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#define drm_ht_insert_item_rcu drm_ht_insert_item
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#define drm_ht_just_insert_please_rcu drm_ht_just_insert_please
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#define drm_ht_remove_key_rcu drm_ht_remove_key
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#define drm_ht_remove_item_rcu drm_ht_remove_item
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#define drm_ht_find_item_rcu drm_ht_find_item
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/*
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* Generic DRM Contexts
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*/
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#define DRM_KERNEL_CONTEXT 0
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#define DRM_RESERVED_CONTEXTS 1
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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void drm_legacy_ctxbitmap_init(struct drm_device *dev);
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void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev);
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void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file);
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#else
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static inline void drm_legacy_ctxbitmap_init(struct drm_device *dev) {}
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static inline void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev) {}
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static inline void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file) {}
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#endif
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void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_switchctx(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_newctx(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f);
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#endif
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/*
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* Generic Buffer Management
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*/
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#define DRM_MAP_HASH_OFFSET 0x10000000
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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static inline int drm_legacy_create_map_hash(struct drm_device *dev)
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{
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return drm_ht_create(&dev->map_hash, 12);
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}
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static inline void drm_legacy_remove_map_hash(struct drm_device *dev)
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{
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drm_ht_remove(&dev->map_hash);
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}
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#else
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static inline int drm_legacy_create_map_hash(struct drm_device *dev)
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{
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return 0;
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}
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static inline void drm_legacy_remove_map_hash(struct drm_device *dev) {}
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#endif
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f);
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#endif
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int __drm_legacy_infobufs(struct drm_device *, void *, int *,
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int (*)(void *, int, struct drm_buf_entry *));
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int __drm_legacy_mapbufs(struct drm_device *, void *, int *,
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void __user **,
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int (*)(void *, int, unsigned long, struct drm_buf *),
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struct drm_file *);
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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void drm_legacy_master_rmmaps(struct drm_device *dev,
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struct drm_master *master);
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void drm_legacy_rmmaps(struct drm_device *dev);
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#else
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static inline void drm_legacy_master_rmmaps(struct drm_device *dev,
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struct drm_master *master) {}
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static inline void drm_legacy_rmmaps(struct drm_device *dev) {}
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#endif
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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void drm_legacy_vma_flush(struct drm_device *d);
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#else
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static inline void drm_legacy_vma_flush(struct drm_device *d)
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{
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/* do nothing */
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}
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#endif
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/*
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* AGP Support
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*/
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struct drm_agp_mem {
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unsigned long handle;
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struct agp_memory *memory;
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unsigned long bound;
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int pages;
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struct list_head head;
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};
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/* drm_agpsupport.c */
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#if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_AGP)
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void drm_legacy_agp_clear(struct drm_device *dev);
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int drm_legacy_agp_acquire_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_legacy_agp_release_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_legacy_agp_enable_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_legacy_agp_info_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_legacy_agp_alloc_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_legacy_agp_free_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_legacy_agp_unbind_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_legacy_agp_bind_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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#else
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static inline void drm_legacy_agp_clear(struct drm_device *dev) {}
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#endif
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/* drm_lock.c */
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f);
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int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f);
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void drm_legacy_lock_release(struct drm_device *dev, struct file *filp);
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#else
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static inline void drm_legacy_lock_release(struct drm_device *dev, struct file *filp) {}
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#endif
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/* DMA support */
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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int drm_legacy_dma_setup(struct drm_device *dev);
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void drm_legacy_dma_takedown(struct drm_device *dev);
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#else
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static inline int drm_legacy_dma_setup(struct drm_device *dev)
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{
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return 0;
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}
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#endif
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void drm_legacy_free_buffer(struct drm_device *dev,
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struct drm_buf * buf);
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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void drm_legacy_reclaim_buffers(struct drm_device *dev,
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struct drm_file *filp);
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#else
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static inline void drm_legacy_reclaim_buffers(struct drm_device *dev,
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struct drm_file *filp) {}
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#endif
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/* Scatter Gather Support */
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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void drm_legacy_sg_cleanup(struct drm_device *dev);
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int drm_legacy_sg_alloc(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int drm_legacy_sg_free(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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#endif
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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void drm_legacy_init_members(struct drm_device *dev);
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void drm_legacy_destroy_members(struct drm_device *dev);
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void drm_legacy_dev_reinit(struct drm_device *dev);
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int drm_legacy_setup(struct drm_device * dev);
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#else
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static inline void drm_legacy_init_members(struct drm_device *dev) {}
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static inline void drm_legacy_destroy_members(struct drm_device *dev) {}
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static inline void drm_legacy_dev_reinit(struct drm_device *dev) {}
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static inline int drm_legacy_setup(struct drm_device * dev) { return 0; }
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#endif
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master);
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#else
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static inline void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master) {}
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#endif
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#if IS_ENABLED(CONFIG_DRM_LEGACY)
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void drm_master_legacy_init(struct drm_master *master);
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#else
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static inline void drm_master_legacy_init(struct drm_master *master) {}
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#endif
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/* drm_pci.c */
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#if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_PCI)
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int drm_legacy_irq_by_busid(struct drm_device *dev, void *data, struct drm_file *file_priv);
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void drm_legacy_pci_agp_destroy(struct drm_device *dev);
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#else
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static inline int drm_legacy_irq_by_busid(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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return -EINVAL;
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}
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static inline void drm_legacy_pci_agp_destroy(struct drm_device *dev) {}
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#endif
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#endif /* __DRM_LEGACY_H__ */
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