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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"
-
-#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
-#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
-
-#include "drm_os_linux.h"
-
-/* If you want the memory alloc debug functionality, change define below */
-/* #define DEBUG_MEMORY */
-
-/***********************************************************************/
-/** \name DRM template customization defaults */
-/*@{*/
-
-/* driver capabilities and requirements mask */
-#define DRIVER_USE_AGP 0x1
-#define DRIVER_REQUIRE_AGP 0x2
-#define DRIVER_USE_MTRR 0x4
-#define DRIVER_PCI_DMA 0x8
-#define DRIVER_SG 0x10
-#define DRIVER_HAVE_DMA 0x20
-#define DRIVER_HAVE_IRQ 0x40
-#define DRIVER_IRQ_SHARED 0x80
-#define DRIVER_IRQ_VBL 0x100
-#define DRIVER_DMA_QUEUE 0x200
-#define DRIVER_FB_DMA 0x400
-
-
-/*@}*/
-
-/***********************************************************************/
-/** \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_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_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 Internal types and structures */
-/*@{*/
-
-#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
-#define DRM_MIN(a,b) min(a,b)
-#define DRM_MAX(a,b) max(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, held %d owner %p %p\n",\
- __FUNCTION__, _DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ),\
- dev->lock.filp, filp ); \
- return -EINVAL; \
- } \
-} while (0)
-
-/**
- * Copy and IOCTL return string to user space
- */
-#define DRM_COPY( name, value ) \
- len = strlen( value ); \
- if ( len > name##_len ) len = name##_len; \
- name##_len = strlen( value ); \
- if ( len && name ) { \
- if ( copy_to_user( name, value, len ) ) \
- return -EFAULT; \
- }
-
-/**
- * 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 int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
- unsigned long arg);
-
-#define DRM_AUTH 0x1
-#define DRM_MASTER 0x2
-#define DRM_ROOT_ONLY 0x4
-
-typedef struct drm_ioctl_desc {
- drm_ioctl_t *func;
- int flags;
-} 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 master;
- 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_head *head;
- int remove_auth_on_close;
- unsigned long lock_count;
- void *driver_priv;
-} 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,
- _DRM_DMA_USE_FB = 0x04
- } flags;
-
-} drm_device_dma_t;
-
-/**
- * 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 */
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11)
- struct agp_bridge_data *bridge;
-#endif
- 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;
-
-/**
- * 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;
-
-typedef struct drm_dma_handle {
- dma_addr_t busaddr;
- void *vaddr;
- size_t size;
-} drm_dma_handle_t;
-
-/**
- * Mappings list
- */
-typedef struct drm_map_list {
- struct list_head head; /**< list head */
- drm_map_t *map; /**< mapping */
- unsigned int user_token;
-} 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;
-
-typedef struct drm_vbl_sig {
- struct list_head head;
- unsigned int sequence;
- struct siginfo info;
- struct task_struct *task;
-} drm_vbl_sig_t;
-
-/* location of GART table */
-#define DRM_ATI_GART_MAIN 1
-#define DRM_ATI_GART_FB 2
-
-typedef struct ati_pcigart_info {
- int gart_table_location;
- int is_pcie;
- void *addr;
- dma_addr_t bus_addr;
- drm_local_map_t mapping;
-} drm_ati_pcigart_info;
-
-/**
- * DRM driver structure. This structure represent the common code for
- * a family of cards. There will one drm_device for each card present
- * in this family
- */
-struct drm_device;
-struct drm_driver {
- int (*load) (struct drm_device *, unsigned long flags);
- int (*firstopen) (struct drm_device *);
- int (*open) (struct drm_device *, drm_file_t *);
- void (*preclose) (struct drm_device *, struct file * filp);
- void (*postclose) (struct drm_device *, drm_file_t *);
- void (*lastclose) (struct drm_device *);
- int (*unload) (struct drm_device *);
- int (*dma_ioctl) (DRM_IOCTL_ARGS);
- void (*dma_ready) (struct drm_device *);
- int (*dma_quiescent) (struct drm_device *);
- int (*context_ctor) (struct drm_device * dev, int context);
- int (*context_dtor) (struct drm_device * dev, int context);
- int (*kernel_context_switch) (struct drm_device * dev, int old,
- int new);
- int (*kernel_context_switch_unlock) (struct drm_device * dev);
- int (*vblank_wait) (struct drm_device * dev, unsigned int *sequence);
- int (*dri_library_name) (struct drm_device * dev, char * buf);
-
- /**
- * Called by \c drm_device_is_agp. Typically used to determine if a
- * card is really attached to AGP or not.
- *
- * \param dev DRM device handle
- *
- * \returns
- * One of three values is returned depending on whether or not the
- * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
- * (return of 1), or may or may not be AGP (return of 2).
- */
- int (*device_is_agp) (struct drm_device * dev);
-
-/* these have to be filled in */
- irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
- void (*irq_preinstall) (struct drm_device * dev);
- void (*irq_postinstall) (struct drm_device * dev);
- void (*irq_uninstall) (struct drm_device * dev);
- void (*reclaim_buffers) (struct drm_device *dev, struct file * filp);
- void (*reclaim_buffers_locked) (struct drm_device *dev,
- struct file * filp);
- unsigned long (*get_map_ofs) (drm_map_t * map);
- unsigned long (*get_reg_ofs) (struct drm_device * dev);
- void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
-
- int major;
- int minor;
- int patchlevel;
- char *name;
- char *desc;
- char *date;
-
-/* variables */
- u32 driver_features;
- int dev_priv_size;
- drm_ioctl_desc_t *ioctls;
- int num_ioctls;
- struct file_operations fops;
- struct pci_driver pci_driver;
-};
-
-/**
- * DRM head structure. This structure represent a video head on a card
- * that may contain multiple heads. Embed one per head of these in the
- * private drm_device structure.
- */
-typedef struct drm_head {
- int minor; /**< Minor device number */
- struct drm_device *dev;
- struct proc_dir_entry *dev_root; /**< proc directory entry */
- dev_t device; /**< Device number for mknod */
- struct class_device *dev_class;
-} drm_head_t;
-
-/**
- * DRM device structure. This structure represent a complete card that
- * may contain multiple heads.
- */
-typedef struct drm_device {
- char *unique; /**< Unique identifier: e.g., busid */
- int unique_len; /**< Length of unique field */
- char *devname; /**< For /proc/interrupts */
- int if_version; /**< Highest interface version set */
-
- int blocked; /**< Blocked due to VC switch? */
-
- /** \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 */
- /*@{ */
-
- 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;
-
- /*@} */
- cycles_t ctx_start;
- cycles_t lck_start;
-
- 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 */
-
- drm_agp_head_t *agp; /**< AGP data */
-
- 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;
-
- struct drm_driver *driver;
- drm_local_map_t *agp_buffer_map;
- unsigned int agp_buffer_token;
- drm_head_t primary; /**< primary screen head */
-} drm_device_t;
-
-static __inline__ int drm_core_check_feature(struct drm_device *dev,
- int feature)
-{
- return ((dev->driver->driver_features & feature) ? 1 : 0);
-}
-
-#if __OS_HAS_AGP
-static inline int drm_core_has_AGP(struct drm_device *dev)
-{
- return drm_core_check_feature(dev, DRIVER_USE_AGP);
-}
-#else
-#define drm_core_has_AGP(dev) (0)
-#endif
-
-#if __OS_HAS_MTRR
-static inline int drm_core_has_MTRR(struct drm_device *dev)
-{
- return drm_core_check_feature(dev, DRIVER_USE_MTRR);
-}
-#else
-#define drm_core_has_MTRR(dev) (0)
-#endif
-
-/******************************************************************/
-/** \name Internal function definitions */
-/*@{*/
-
- /* Driver support (drm_drv.h) */
-extern int drm_fb_loaded;
-extern int __devinit drm_init(struct drm_driver *driver,
- struct pci_device_id *pciidlist);
-extern void __exit drm_exit(struct drm_driver *driver);
-extern void __exit drm_cleanup_pci(struct pci_dev *pdev);
-extern int drm_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern long drm_compat_ioctl(struct file *filp,
- unsigned int cmd, unsigned long arg);
-
-extern int drm_lastclose(drm_device_t * dev);
-
- /* Device support (drm_fops.h) */
-extern int drm_open(struct inode *inode, struct file *filp);
-extern int drm_stub_open(struct inode *inode, struct file *filp);
-extern int drm_fasync(int fd, struct file *filp, int on);
-extern int drm_release(struct inode *inode, struct file *filp);
-unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
-
- /* Mapping support (drm_vm.h) */
-extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
-extern unsigned long drm_core_get_map_ofs(drm_map_t * map);
-extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
-
- /* Memory management support (drm_memory.h) */
-#include "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_calloc(size_t nmemb, size_t size, int area);
-extern void *drm_realloc(void *oldpt, size_t oldsize, 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 DRM_AGP_MEM *drm_alloc_agp(drm_device_t *dev, 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);
-
- /* 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);
-extern int drm_noop(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_complete(drm_device_t * dev, int new);
-
-extern int drm_ctxbitmap_init(drm_device_t * dev);
-extern void drm_ctxbitmap_cleanup(drm_device_t * dev);
-extern void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle);
-
-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_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);
-
- /* Locking IOCTL support (drm_lock.h) */
-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_lock_take(__volatile__ unsigned int *lock, unsigned int context);
-extern int drm_lock_free(drm_device_t * dev,
- __volatile__ unsigned int *lock, unsigned int context);
-
- /* Buffer management support (drm_bufs.h) */
-extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
-extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request);
-extern int drm_addbufs_fb (drm_device_t * dev, drm_buf_desc_t * request);
-extern int drm_addmap(drm_device_t * dev, unsigned int offset,
- unsigned int size, drm_map_type_t type,
- drm_map_flags_t flags, drm_local_map_t ** map_ptr);
-extern int drm_addmap_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int drm_rmmap(drm_device_t *dev, drm_local_map_t *map);
-extern int drm_rmmap_locked(drm_device_t *dev, drm_local_map_t *map);
-extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-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);
-extern int drm_order(unsigned long size);
-extern unsigned long drm_get_resource_start(drm_device_t *dev,
- unsigned int resource);
-extern unsigned long drm_get_resource_len(drm_device_t *dev,
- unsigned int resource);
-
- /* 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_core_reclaim_buffers(drm_device_t *dev, struct file *filp);
-
- /* IRQ support (drm_irq.h) */
-extern int drm_control(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
-extern int drm_irq_uninstall(drm_device_t *dev);
-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);
-
-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);
-
- /* AGP/GART support (drm_agpsupport.h) */
-extern drm_agp_head_t *drm_agp_init(drm_device_t *dev);
-extern int drm_agp_acquire(drm_device_t * dev);
-extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int drm_agp_release(drm_device_t *dev);
-extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t mode);
-extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int drm_agp_info(drm_device_t * dev, drm_agp_info_t *info);
-extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request);
-extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request);
-extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request);
-extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request);
-extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11)
-extern DRM_AGP_MEM *drm_agp_allocate_memory(size_t pages, u32 type);
-#else
-extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type);
-#endif
-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);
-
- /* Stub support (drm_stub.h) */
-extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
- struct drm_driver *driver);
-extern int drm_put_dev(drm_device_t * dev);
-extern int drm_put_head(drm_head_t * head);
-extern unsigned int drm_debug; /* 1 to enable debug output */
-extern unsigned int cards_limit;
-extern drm_head_t **drm_heads;
-extern struct drm_sysfs_class *drm_class;
-extern struct proc_dir_entry *drm_proc_root;
-
- /* 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);
-
- /* 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);
-
- /* ATI PCIGART support (ati_pcigart.h) */
-extern int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info);
-extern int drm_ati_pcigart_cleanup(drm_device_t * dev, drm_ati_pcigart_info *gart_info);
-
-extern drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size,
- size_t align, dma_addr_t maxaddr);
-extern void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t *dmah);
-extern void drm_pci_free(drm_device_t * dev, drm_dma_handle_t *dmah);
-
- /* sysfs support (drm_sysfs.c) */
-struct drm_sysfs_class;
-extern struct drm_sysfs_class *drm_sysfs_create(struct module *owner,
- char *name);
-extern void drm_sysfs_destroy(struct drm_sysfs_class *cs);
-extern struct class_device *drm_sysfs_device_add(struct drm_sysfs_class *cs,
- drm_head_t * head);
-extern void drm_sysfs_device_remove(struct class_device *class_dev);
-
-/* Inline replacements for DRM_IOREMAP macros */
-static __inline__ void drm_core_ioremap(struct drm_map *map,
- struct drm_device *dev)
-{
- map->handle = drm_ioremap(map->offset, map->size, dev);
-}
-
-static __inline__ void drm_core_ioremap_nocache(struct drm_map *map,
- struct drm_device *dev)
-{
- map->handle = drm_ioremap_nocache(map->offset, map->size, dev);
-}
-
-static __inline__ void drm_core_ioremapfree(struct drm_map *map,
- struct drm_device *dev)
-{
- if (map->handle && map->size)
- drm_ioremapfree(map->handle, map->size, dev);
-}
-
-static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
- unsigned int token)
-{
- drm_map_list_t *_entry;
- list_for_each_entry(_entry, &dev->maplist->head, head)
- if (_entry->user_token == token)
- return _entry->map;
- return NULL;
-}
-
-static __inline__ int drm_device_is_agp(drm_device_t *dev)
-{
- if ( dev->driver->device_is_agp != NULL ) {
- int err = (*dev->driver->device_is_agp)( dev );
-
- if (err != 2) {
- return err;
- }
- }
-
- return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
-}
-
-static __inline__ int drm_device_is_pcie(drm_device_t *dev)
-{
- return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
-}
-
-static __inline__ void drm_core_dropmap(struct drm_map *map)
-{
-}
-
-#ifndef DEBUG_MEMORY
-/** Wrapper around kmalloc() */
-static __inline__ void *drm_alloc(size_t size, int area)
-{
- return kmalloc(size, GFP_KERNEL);
-}
-
-/** Wrapper around kfree() */
-static __inline__ void drm_free(void *pt, size_t size, int area)
-{
- kfree(pt);
-}
-#else
-extern void *drm_alloc(size_t size, int area);
-extern void drm_free(void *pt, size_t size, int area);
-#endif
-
-/*@}*/
-
-#endif /* __KERNEL__ */
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 13:33:46 +0000