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drm/linux-core/drmP.h

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/**
* \file drmP.h
* Private header for Direct Rendering Manager
*
* \author Rickard E. (Rik) Faith <faith@valinux.com>
* \author Gareth Hughes <gareth@valinux.com>
*/
/*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _DRM_P_H_
#define _DRM_P_H_
#ifdef __KERNEL__
#ifdef __alpha__
/* add include of current.h so that "current" is defined
* before static inline funcs in wait.h. Doing this so we
* can build the DRM (part of PI DRI). 4/21/2000 S + B */
#include <asm/current.h>
#endif /* __alpha__ */
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/miscdevice.h>
#include <linux/fs.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/file.h>
#include <linux/pci.h>
#include <linux/version.h>
#include <linux/sched.h>
#include <linux/smp_lock.h> /* For (un)lock_kernel */
#include <linux/mm.h>
#include <linux/pagemap.h>
#if defined(__alpha__) || defined(__powerpc__)
#include <asm/pgtable.h> /* For pte_wrprotect */
#endif
#include <asm/io.h>
#include <asm/mman.h>
#include <asm/uaccess.h>
#ifdef CONFIG_MTRR
#include <asm/mtrr.h>
#endif
#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
#include <linux/types.h>
#include <linux/agp_backend.h>
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,41)
#define HAS_WORKQUEUE 0
#else
#define HAS_WORKQUEUE 1
#endif
#if !HAS_WORKQUEUE
#include <linux/tqueue.h>
#else
#include <linux/workqueue.h>
#endif
#include <linux/poll.h>
#include <asm/pgalloc.h>
#include "drm.h"
#include "drm_os_linux.h"
/***********************************************************************/
/** \name DRM template customization defaults */
/*@{*/
#ifndef __HAVE_AGP
#define __HAVE_AGP 0
#endif
#ifndef __HAVE_MTRR
#define __HAVE_MTRR 0
#endif
#ifndef __HAVE_CTX_BITMAP
#define __HAVE_CTX_BITMAP 0
#endif
#ifndef __HAVE_DMA
#define __HAVE_DMA 0
#endif
#ifndef __HAVE_IRQ
#define __HAVE_IRQ 0
#endif
#ifndef __HAVE_DMA_WAITLIST
#define __HAVE_DMA_WAITLIST 0
#endif
#ifndef __HAVE_DMA_FREELIST
#define __HAVE_DMA_FREELIST 0
#endif
#define __REALLY_HAVE_AGP (__HAVE_AGP && (defined(CONFIG_AGP) || \
defined(CONFIG_AGP_MODULE)))
#define __REALLY_HAVE_MTRR (__HAVE_MTRR && defined(CONFIG_MTRR))
#define __REALLY_HAVE_SG (__HAVE_SG)
/*@}*/
/***********************************************************************/
/** \name Begin the DRM... */
/*@{*/
#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
also include looping detection. */
#define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */
#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
#define DRM_LOOPING_LIMIT 5000000
#define DRM_BSZ 1024 /**< Buffer size for /dev/drm? output */
#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
#define DRM_FLAG_DEBUG 0x01
#define DRM_MEM_DMA 0
#define DRM_MEM_SAREA 1
#define DRM_MEM_DRIVER 2
#define DRM_MEM_MAGIC 3
#define DRM_MEM_IOCTLS 4
#define DRM_MEM_MAPS 5
#define DRM_MEM_VMAS 6
#define DRM_MEM_BUFS 7
#define DRM_MEM_SEGS 8
#define DRM_MEM_PAGES 9
#define DRM_MEM_FILES 10
#define DRM_MEM_QUEUES 11
#define DRM_MEM_CMDS 12
#define DRM_MEM_MAPPINGS 13
#define DRM_MEM_BUFLISTS 14
#define DRM_MEM_AGPLISTS 15
#define DRM_MEM_TOTALAGP 16
#define DRM_MEM_BOUNDAGP 17
#define DRM_MEM_CTXBITMAP 18
#define DRM_MEM_STUB 19
#define DRM_MEM_SGLISTS 20
#define DRM_MEM_CTXLIST 21
#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
/*@}*/
#include "drm_compat.h"
/***********************************************************************/
/** \name Macros to make printk easier */
/*@{*/
/**
* Error output.
*
* \param fmt printf() like format string.
* \param arg arguments
*/
#define DRM_ERROR(fmt, arg...) \
printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
/**
* Memory error output.
*
* \param area memory area where the error occurred.
* \param fmt printf() like format string.
* \param arg arguments
*/
#define DRM_MEM_ERROR(area, fmt, arg...) \
printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
DRM(mem_stats)[area].name , ##arg)
#define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
/**
* Debug output.
*
* \param fmt printf() like format string.
* \param arg arguments
*/
#if DRM_DEBUG_CODE
#define DRM_DEBUG(fmt, arg...) \
do { \
if ( DRM(flags) & DRM_FLAG_DEBUG ) \
printk(KERN_DEBUG \
"[" DRM_NAME ":%s] " fmt , \
__FUNCTION__ , ##arg); \
} while (0)
#else
#define DRM_DEBUG(fmt, arg...) do { } while (0)
#endif
#define DRM_PROC_LIMIT (PAGE_SIZE-80)
#define DRM_PROC_PRINT(fmt, arg...) \
len += sprintf(&buf[len], fmt , ##arg); \
if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
#define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
len += sprintf(&buf[len], fmt , ##arg); \
if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
/*@}*/
/***********************************************************************/
/** \name Mapping helper macros */
/*@{*/
#define DRM_IOREMAP(map, dev) \
(map)->handle = DRM(ioremap)( (map)->offset, (map)->size, (dev) )
#define DRM_IOREMAP_NOCACHE(map, dev) \
(map)->handle = DRM(ioremap_nocache)((map)->offset, (map)->size, (dev))
#define DRM_IOREMAPFREE(map, dev) \
do { \
if ( (map)->handle && (map)->size ) \
DRM(ioremapfree)( (map)->handle, (map)->size, (dev) ); \
} while (0)
/**
* Find mapping.
*
* \param _map matching mapping if found, untouched otherwise.
* \param _o offset.
*
* Expects the existence of a local variable named \p dev pointing to the
* drm_device structure.
*/
#define DRM_FIND_MAP(_map, _o) \
do { \
struct list_head *_list; \
list_for_each( _list, &dev->maplist->head ) { \
drm_map_list_t *_entry = list_entry( _list, drm_map_list_t, head ); \
if ( _entry->map && \
_entry->map->offset == (_o) ) { \
(_map) = _entry->map; \
break; \
} \
} \
} while(0)
/**
* Drop mapping.
*
* \sa #DRM_FIND_MAP.
*/
#define DRM_DROP_MAP(_map)
/*@}*/
/***********************************************************************/
/** \name Internal types and structures */
/*@{*/
#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
#define DRM_MIN(a,b) ((a)<(b)?(a):(b))
#define DRM_MAX(a,b) ((a)>(b)?(a):(b))
#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
#define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
/**
* Get the private SAREA mapping.
*
* \param _dev DRM device.
* \param _ctx context number.
* \param _map output mapping.
*/
#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
(_map) = (_dev)->context_sareas[_ctx]; \
} while(0)
/**
* Test that the hardware lock is held by the caller, returning otherwise.
*
* \param dev DRM device.
* \param filp file pointer of the caller.
*/
#define LOCK_TEST_WITH_RETURN( dev, filp ) \
do { \
if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
dev->lock.filp != filp ) { \
DRM_ERROR( "%s called without lock held\n", \
__FUNCTION__ ); \
return -EINVAL; \
} \
} while (0)
/**
* Ioctl function type.
*
* \param inode device inode.
* \param filp file pointer.
* \param cmd command.
* \param arg argument.
*/
typedef int drm_ioctl_t( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
typedef struct drm_ioctl_desc {
drm_ioctl_t *func;
int auth_needed;
int root_only;
} drm_ioctl_desc_t;
typedef struct drm_devstate {
pid_t owner; /**< X server pid holding x_lock */
} drm_devstate_t;
typedef struct drm_magic_entry {
drm_magic_t magic;
struct drm_file *priv;
struct drm_magic_entry *next;
} drm_magic_entry_t;
typedef struct drm_magic_head {
struct drm_magic_entry *head;
struct drm_magic_entry *tail;
} drm_magic_head_t;
typedef struct drm_vma_entry {
struct vm_area_struct *vma;
struct drm_vma_entry *next;
pid_t pid;
} drm_vma_entry_t;
/**
* DMA buffer.
*/
typedef struct drm_buf {
int idx; /**< Index into master buflist */
int total; /**< Buffer size */
int order; /**< log-base-2(total) */
int used; /**< Amount of buffer in use (for DMA) */
unsigned long offset; /**< Byte offset (used internally) */
void *address; /**< Address of buffer */
unsigned long bus_address; /**< Bus address of buffer */
struct drm_buf *next; /**< Kernel-only: used for free list */
__volatile__ int waiting; /**< On kernel DMA queue */
__volatile__ int pending; /**< On hardware DMA queue */
wait_queue_head_t dma_wait; /**< Processes waiting */
struct file *filp; /**< Pointer to holding file descr */
int context; /**< Kernel queue for this buffer */
int while_locked;/**< Dispatch this buffer while locked */
enum {
DRM_LIST_NONE = 0,
DRM_LIST_FREE = 1,
DRM_LIST_WAIT = 2,
DRM_LIST_PEND = 3,
DRM_LIST_PRIO = 4,
DRM_LIST_RECLAIM = 5
} list; /**< Which list we're on */
int dev_priv_size; /**< Size of buffer private storage */
void *dev_private; /**< Per-buffer private storage */
} drm_buf_t;
/** bufs is one longer than it has to be */
typedef struct drm_waitlist {
int count; /**< Number of possible buffers */
drm_buf_t **bufs; /**< List of pointers to buffers */
drm_buf_t **rp; /**< Read pointer */
drm_buf_t **wp; /**< Write pointer */
drm_buf_t **end; /**< End pointer */
spinlock_t read_lock;
spinlock_t write_lock;
} drm_waitlist_t;
typedef struct drm_freelist {
int initialized; /**< Freelist in use */
atomic_t count; /**< Number of free buffers */
drm_buf_t *next; /**< End pointer */
wait_queue_head_t waiting; /**< Processes waiting on free bufs */
int low_mark; /**< Low water mark */
int high_mark; /**< High water mark */
atomic_t wfh; /**< If waiting for high mark */
spinlock_t lock;
} drm_freelist_t;
/**
* Buffer entry. There is one of this for each buffer size order.
*/
typedef struct drm_buf_entry {
int buf_size; /**< size */
int buf_count; /**< number of buffers */
drm_buf_t *buflist; /**< buffer list */
int seg_count;
int page_order;
unsigned long *seglist;
drm_freelist_t freelist;
} drm_buf_entry_t;
/** File private data */
typedef struct drm_file {
int authenticated;
int minor;
pid_t pid;
uid_t uid;
drm_magic_t magic;
unsigned long ioctl_count;
struct drm_file *next;
struct drm_file *prev;
struct drm_device *dev;
int remove_auth_on_close;
unsigned long lock_count;
#ifdef DRIVER_FILE_FIELDS
DRIVER_FILE_FIELDS;
#endif
} drm_file_t;
/** Wait queue */
typedef struct drm_queue {
atomic_t use_count; /**< Outstanding uses (+1) */
atomic_t finalization; /**< Finalization in progress */
atomic_t block_count; /**< Count of processes waiting */
atomic_t block_read; /**< Queue blocked for reads */
wait_queue_head_t read_queue; /**< Processes waiting on block_read */
atomic_t block_write; /**< Queue blocked for writes */
wait_queue_head_t write_queue; /**< Processes waiting on block_write */
#if 1
atomic_t total_queued; /**< Total queued statistic */
atomic_t total_flushed;/**< Total flushes statistic */
atomic_t total_locks; /**< Total locks statistics */
#endif
drm_ctx_flags_t flags; /**< Context preserving and 2D-only */
drm_waitlist_t waitlist; /**< Pending buffers */
wait_queue_head_t flush_queue; /**< Processes waiting until flush */
} drm_queue_t;
/**
* Lock data.
*/
typedef struct drm_lock_data {
drm_hw_lock_t *hw_lock; /**< Hardware lock */
struct file *filp; /**< File descr of lock holder (0=kernel) */
wait_queue_head_t lock_queue; /**< Queue of blocked processes */
unsigned long lock_time; /**< Time of last lock in jiffies */
} drm_lock_data_t;
/**
* DMA data.
*/
typedef struct drm_device_dma {
drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; /**< buffers, grouped by their size order */
int buf_count; /**< total number of buffers */
drm_buf_t **buflist; /**< Vector of pointers into drm_device_dma::bufs */
int seg_count;
int page_count; /**< number of pages */
unsigned long *pagelist; /**< page list */
unsigned long byte_count;
enum {
_DRM_DMA_USE_AGP = 0x01,
_DRM_DMA_USE_SG = 0x02
} flags;
/** \name DMA support */
/*@{*/
drm_buf_t *this_buffer; /**< Buffer being sent */
drm_buf_t *next_buffer; /**< Selected buffer to send */
drm_queue_t *next_queue; /**< Queue from which buffer selected*/
wait_queue_head_t waiting; /**< Processes waiting on free bufs */
/*@}*/
} drm_device_dma_t;
#if __REALLY_HAVE_AGP
/**
* AGP memory entry. Stored as a doubly linked list.
*/
typedef struct drm_agp_mem {
unsigned long handle; /**< handle */
DRM_AGP_MEM *memory;
unsigned long bound; /**< address */
int pages;
struct drm_agp_mem *prev; /**< previous entry */
struct drm_agp_mem *next; /**< next entry */
} drm_agp_mem_t;
/**
* AGP data.
*
* \sa DRM(agp_init)() and drm_device::agp.
*/
typedef struct drm_agp_head {
DRM_AGP_KERN agp_info; /**< AGP device information */
drm_agp_mem_t *memory; /**< memory entries */
unsigned long mode; /**< AGP mode */
int enabled; /**< whether the AGP bus as been enabled */
int acquired; /**< whether the AGP device has been acquired */
unsigned long base;
int agp_mtrr;
int cant_use_aperture;
unsigned long page_mask;
} drm_agp_head_t;
#endif
/**
* Scatter-gather memory.
*/
typedef struct drm_sg_mem {
unsigned long handle;
void *virtual;
int pages;
struct page **pagelist;
dma_addr_t *busaddr;
} drm_sg_mem_t;
typedef struct drm_sigdata {
int context;
drm_hw_lock_t *lock;
} drm_sigdata_t;
/**
* Mappings list
*/
typedef struct drm_map_list {
struct list_head head; /**< list head */
drm_map_t *map; /**< mapping */
} drm_map_list_t;
typedef drm_map_t drm_local_map_t;
/**
* Context handle list
*/
typedef struct drm_ctx_list {
struct list_head head; /**< list head */
drm_context_t handle; /**< context handle */
drm_file_t *tag; /**< associated fd private data */
} drm_ctx_list_t;
#ifdef __HAVE_VBL_IRQ
typedef struct drm_vbl_sig {
struct list_head head;
unsigned int sequence;
struct siginfo info;
struct task_struct *task;
} drm_vbl_sig_t;
#endif
/**
* DRM device structure.
*/
typedef struct drm_device {
const char *name; /**< Simple driver name */
char *unique; /**< Unique identifier: e.g., busid */
int unique_len; /**< Length of unique field */
dev_t device; /**< Device number for mknod */
char *devname; /**< For /proc/interrupts */
int minor; /**< Minor device number */
int if_version; /**< Highest interface version set */
int blocked; /**< Blocked due to VC switch? */
struct proc_dir_entry *root; /**< Root for this device's entries */
/** \name Locks */
/*@{*/
spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
struct semaphore struct_sem; /**< For others */
/*@}*/
/** \name Usage Counters */
/*@{*/
int open_count; /**< Outstanding files open */
atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
atomic_t vma_count; /**< Outstanding vma areas open */
int buf_use; /**< Buffers in use -- cannot alloc */
atomic_t buf_alloc; /**< Buffer allocation in progress */
/*@}*/
/** \name Performance counters */
/*@{*/
unsigned long counters;
drm_stat_type_t types[15];
atomic_t counts[15];
/*@}*/
/** \name Authentication */
/*@{*/
drm_file_t *file_first; /**< file list head */
drm_file_t *file_last; /**< file list tail */
drm_magic_head_t magiclist[DRM_HASH_SIZE]; /**< magic hash table */
/*@}*/
/** \name Memory management */
/*@{*/
drm_map_list_t *maplist; /**< Linked list of regions */
int map_count; /**< Number of mappable regions */
/** \name Context handle management */
/*@{*/
drm_ctx_list_t *ctxlist; /**< Linked list of context handles */
int ctx_count; /**< Number of context handles */
struct semaphore ctxlist_sem; /**< For ctxlist */
drm_map_t **context_sareas; /**< per-context SAREA's */
int max_context;
drm_vma_entry_t *vmalist; /**< List of vmas (for debugging) */
drm_lock_data_t lock; /**< Information on hardware lock */
/*@}*/
/** \name DMA queues (contexts) */
/*@{*/
int queue_count; /**< Number of active DMA queues */
int queue_reserved; /**< Number of reserved DMA queues */
int queue_slots; /**< Actual length of queuelist */
drm_queue_t **queuelist; /**< Vector of pointers to DMA queues */
drm_device_dma_t *dma; /**< Optional pointer for DMA support */
/*@}*/
/** \name Context support */
/*@{*/
int irq; /**< Interrupt used by board */
int irq_enabled; /**< True if irq handler is enabled */
__volatile__ long context_flag; /**< Context swapping flag */
__volatile__ long interrupt_flag; /**< Interruption handler flag */
__volatile__ long dma_flag; /**< DMA dispatch flag */
struct timer_list timer; /**< Timer for delaying ctx switch */
wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
int last_checked; /**< Last context checked for DMA */
int last_context; /**< Last current context */
unsigned long last_switch; /**< jiffies at last context switch */
/*@}*/
#if !HAS_WORKQUEUE
struct tq_struct tq;
#else
struct work_struct work;
#endif
/** \name VBLANK IRQ support */
/*@{*/
#ifdef __HAVE_VBL_IRQ
wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
atomic_t vbl_received;
spinlock_t vbl_lock;
drm_vbl_sig_t vbl_sigs; /**< signal list to send on VBLANK */
unsigned int vbl_pending;
#endif
/*@}*/
cycles_t ctx_start;
cycles_t lck_start;
char buf[DRM_BSZ]; /**< Output buffer */
char *buf_rp; /**< Read pointer */
char *buf_wp; /**< Write pointer */
char *buf_end; /**< End pointer */
struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
wait_queue_head_t buf_readers; /**< Processes waiting to read */
wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
#if __REALLY_HAVE_AGP
drm_agp_head_t *agp; /**< AGP data */
#endif
struct pci_dev *pdev; /**< PCI device structure */
int pci_domain; /**< PCI bus domain number */
int pci_bus; /**< PCI bus number */
int pci_slot; /**< PCI slot number */
int pci_func; /**< PCI function number */
#ifdef __alpha__
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3)
struct pci_controler *hose;
#else
struct pci_controller *hose;
#endif
#endif
drm_sg_mem_t *sg; /**< Scatter gather memory */
unsigned long *ctx_bitmap; /**< context bitmap */
void *dev_private; /**< device private data */
drm_sigdata_t sigdata; /**< For block_all_signals */
sigset_t sigmask;
int need_reset; /**< secondary device needing reset */
} drm_device_t;
/******************************************************************/
/** \name Internal function definitions */
/*@{*/
/* Misc. support (drm_init.h) */
extern int DRM(flags);
extern void DRM(parse_options)( char *s );
extern int DRM(cpu_valid)( void );
/* Driver support (drm_drv.h) */
extern int DRM(version)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(open)(struct inode *inode, struct file *filp);
extern int DRM(release)(struct inode *inode, struct file *filp);
extern int DRM(ioctl)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(lock)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(unlock)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(fb_loaded);
/* Device support (drm_fops.h) */
extern int DRM(open_helper)(struct inode *inode, struct file *filp,
drm_device_t *dev);
extern int DRM(flush)(struct file *filp);
extern int DRM(fasync)(int fd, struct file *filp, int on);
/* Mapping support (drm_vm.h) */
extern void DRM(vm_open)(struct vm_area_struct *vma);
extern void DRM(vm_close)(struct vm_area_struct *vma);
extern void DRM(vm_shm_close)(struct vm_area_struct *vma);
extern int DRM(mmap_dma)(struct file *filp,
struct vm_area_struct *vma);
extern int DRM(mmap)(struct file *filp, struct vm_area_struct *vma);
extern unsigned int DRM(poll)(struct file *filp, struct poll_table_struct *wait);
extern ssize_t DRM(read)(struct file *filp, char __user *buf, size_t count, loff_t *off);
/* Memory management support (drm_memory.h) */
extern void DRM(mem_init)(void);
extern int DRM(mem_info)(char *buf, char **start, off_t offset,
int request, int *eof, void *data);
extern void *DRM(alloc)(size_t size, int area);
extern void *DRM(calloc)(size_t nmemb, size_t size, int area);
extern void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size,
int area);
extern void DRM(free)(void *pt, size_t size, int area);
extern unsigned long DRM(alloc_pages)(int order, int area);
extern void DRM(free_pages)(unsigned long address, int order,
int area);
extern void *DRM(ioremap)(unsigned long offset, unsigned long size, drm_device_t *dev);
extern void *DRM(ioremap_nocache)(unsigned long offset, unsigned long size,
drm_device_t *dev);
extern void DRM(ioremapfree)(void *pt, unsigned long size, drm_device_t *dev);
#if __REALLY_HAVE_AGP
extern DRM_AGP_MEM *DRM(alloc_agp)(int pages, u32 type);
extern int DRM(free_agp)(DRM_AGP_MEM *handle, int pages);
extern int DRM(bind_agp)(DRM_AGP_MEM *handle, unsigned int start);
extern int DRM(unbind_agp)(DRM_AGP_MEM *handle);
#endif
/* Misc. IOCTL support (drm_ioctl.h) */
extern int DRM(irq_by_busid)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(getunique)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(setunique)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(getmap)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(getclient)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(getstats)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(setversion)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
/* Context IOCTL support (drm_context.h) */
extern int DRM(resctx)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(addctx)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(modctx)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(getctx)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(switchctx)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(newctx)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(rmctx)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(context_switch)(drm_device_t *dev, int old, int new);
extern int DRM(context_switch_complete)(drm_device_t *dev, int new);
#if __HAVE_CTX_BITMAP
extern int DRM(ctxbitmap_init)( drm_device_t *dev );
extern void DRM(ctxbitmap_cleanup)( drm_device_t *dev );
#endif
extern int DRM(setsareactx)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(getsareactx)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
/* Drawable IOCTL support (drm_drawable.h) */
extern int DRM(adddraw)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(rmdraw)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
/* Authentication IOCTL support (drm_auth.h) */
extern int DRM(add_magic)(drm_device_t *dev, drm_file_t *priv,
drm_magic_t magic);
extern int DRM(remove_magic)(drm_device_t *dev, drm_magic_t magic);
extern int DRM(getmagic)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(authmagic)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
/* Placeholder for ioctls past */
extern int DRM(noop)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
/* Locking IOCTL support (drm_lock.h) */
extern int DRM(lock_take)(__volatile__ unsigned int *lock,
unsigned int context);
extern int DRM(lock_transfer)(drm_device_t *dev,
__volatile__ unsigned int *lock,
unsigned int context);
extern int DRM(lock_free)(drm_device_t *dev,
__volatile__ unsigned int *lock,
unsigned int context);
extern int DRM(notifier)(void *priv);
/* Buffer management support (drm_bufs.h) */
extern int DRM(order)( unsigned long size );
extern int DRM(addmap)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(rmmap)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
#if __HAVE_DMA
extern int DRM(addbufs)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(infobufs)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(markbufs)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(freebufs)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
extern int DRM(mapbufs)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
/* DMA support (drm_dma.h) */
extern int DRM(dma_setup)(drm_device_t *dev);
extern void DRM(dma_takedown)(drm_device_t *dev);
extern void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf);
extern void DRM(reclaim_buffers)( struct file *filp );
#endif /* __HAVE_DMA */
/* IRQ support (drm_irq.h) */
#if __HAVE_IRQ || __HAVE_DMA
extern int DRM(control)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
#endif
#if __HAVE_IRQ
extern int DRM(irq_install)( drm_device_t *dev );
extern int DRM(irq_uninstall)( drm_device_t *dev );
extern irqreturn_t DRM(irq_handler)( DRM_IRQ_ARGS );
extern void DRM(driver_irq_preinstall)( drm_device_t *dev );
extern void DRM(driver_irq_postinstall)( drm_device_t *dev );
extern void DRM(driver_irq_uninstall)( drm_device_t *dev );
#ifdef __HAVE_VBL_IRQ
extern int DRM(wait_vblank)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(vblank_wait)(drm_device_t *dev, unsigned int *vbl_seq);
extern void DRM(vbl_send_signals)( drm_device_t *dev );
#endif
#ifdef __HAVE_IRQ_BH
extern void DRM(irq_immediate_bh)( void *dev );
#endif
#endif
#if __REALLY_HAVE_AGP
/* AGP/GART support (drm_agpsupport.h) */
extern drm_agp_head_t *DRM(agp_init)(void);
extern void DRM(agp_uninit)(void);
extern int DRM(agp_acquire)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern void DRM(agp_do_release)(void);
extern int DRM(agp_release)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(agp_enable)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(agp_info)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(agp_alloc)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(agp_free)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(agp_unbind)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(agp_bind)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern DRM_AGP_MEM *DRM(agp_allocate_memory)(size_t pages, u32 type);
extern int DRM(agp_free_memory)(DRM_AGP_MEM *handle);
extern int DRM(agp_bind_memory)(DRM_AGP_MEM *handle, off_t start);
extern int DRM(agp_unbind_memory)(DRM_AGP_MEM *handle);
#endif
/* Stub support (drm_stub.h) */
int DRM(stub_register)(const char *name,
struct file_operations *fops,
drm_device_t *dev);
int DRM(stub_unregister)(int minor);
/* Proc support (drm_proc.h) */
extern int DRM(proc_init)(drm_device_t *dev,
int minor,
struct proc_dir_entry *root,
struct proc_dir_entry **dev_root);
extern int DRM(proc_cleanup)(int minor,
struct proc_dir_entry *root,
struct proc_dir_entry *dev_root);
#ifdef __HAVE_SG
/* Scatter Gather Support (drm_scatter.h) */
extern void DRM(sg_cleanup)(drm_sg_mem_t *entry);
extern int DRM(sg_alloc)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int DRM(sg_free)(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
#endif
/* ATI PCIGART support (ati_pcigart.h) */
extern int DRM(ati_pcigart_init)(drm_device_t *dev,
unsigned long *addr,
dma_addr_t *bus_addr);
extern int DRM(ati_pcigart_cleanup)(drm_device_t *dev,
unsigned long addr,
dma_addr_t bus_addr);
extern void *DRM(pci_alloc)(drm_device_t *dev, size_t size,
size_t align, dma_addr_t maxaddr,
dma_addr_t *busaddr);
extern void DRM(pci_free)(drm_device_t *dev, size_t size,
void *vaddr, dma_addr_t busaddr);
/*@}*/
#endif /* __KERNEL__ */
#endif
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