/** * \file drmP.h * Private header for Direct Rendering Manager * * \author Rickard E. (Rik) Faith * \author Gareth Hughes */ /* * 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 #endif /* __alpha__ */ #include #include #include #include #include #include #include #include #include #include #include #include /* For (un)lock_kernel */ #include #if defined(__alpha__) || defined(__powerpc__) #include /* For pte_wrprotect */ #endif #include #include #include #ifdef CONFIG_MTRR #include #endif #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) #include #include #endif #include #include #include #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) /*@}*/ /***********************************************************************/ /** \name Backward compatibility section */ /*@{*/ #ifndef MODULE_LICENSE #define MODULE_LICENSE(x) #endif #ifndef preempt_disable #define preempt_disable() #define preempt_enable() #endif #ifndef pte_offset_map #define pte_offset_map pte_offset #define pte_unmap(pte) #endif #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19) static inline struct page * vmalloc_to_page(void * vmalloc_addr) { unsigned long addr = (unsigned long) vmalloc_addr; struct page *page = NULL; pgd_t *pgd = pgd_offset_k(addr); pmd_t *pmd; pte_t *ptep, pte; if (!pgd_none(*pgd)) { pmd = pmd_offset(pgd, addr); if (!pmd_none(*pmd)) { preempt_disable(); ptep = pte_offset_map(pmd, addr); pte = *ptep; if (pte_present(pte)) page = pte_page(pte); pte_unmap(ptep); preempt_enable(); } } return page; } #endif #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) #define DRM_RPR_ARG(vma) #else #define DRM_RPR_ARG(vma) vma, #endif #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT) /*@}*/ /***********************************************************************/ /** \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 */ /*@}*/ struct work_struct work; /** \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; } 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); /* 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 struct proc_dir_entry *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); /*@}*/ #endif /* __KERNEL__ */ #endif