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Diffstat (limited to 'drivers/char/drm/drmP.h')
| -rw-r--r-- | drivers/char/drm/drmP.h | 1073 |
1 files changed, 1073 insertions, 0 deletions
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h new file mode 100644 index 0000000..21f4c54 --- /dev/null +++ b/drivers/char/drm/drmP.h @@ -0,0 +1,1073 @@ +/** + * \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_ + +/* If you want the memory alloc debug functionality, change define below */ +/* #define DEBUG_MEMORY */ + +#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/jiffies.h> +#include <linux/smp_lock.h> /* For (un)lock_kernel */ +#include <linux/mm.h> +#include <linux/cdev.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 +#include <linux/workqueue.h> +#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" + +/***********************************************************************/ +/** \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 + +/***********************************************************************/ +/** \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_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) (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) + +/** + * 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 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_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 + } 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 */ + struct agp_bridge_data *bridge; + 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; + +/** + * 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; + + +typedef struct drm_vbl_sig { + struct list_head head; + unsigned int sequence; + struct siginfo info; + struct task_struct *task; +} drm_vbl_sig_t; + + +/** + * 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 (*preinit)(struct drm_device *, unsigned long flags); + void (*prerelease)(struct drm_device *, struct file *filp); + void (*pretakedown)(struct drm_device *); + int (*postcleanup)(struct drm_device *); + int (*presetup)(struct drm_device *); + int (*postsetup)(struct drm_device *); + int (*dma_ioctl)( DRM_IOCTL_ARGS ); + int (*open_helper)(struct drm_device *, drm_file_t *); + void (*free_filp_priv)(struct drm_device *, drm_file_t *); + void (*release)(struct drm_device *, struct file *filp); + 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); + void (*kernel_context_switch_unlock)(struct drm_device *dev, drm_lock_t *lock); + int (*vblank_wait)(struct drm_device *dev, unsigned int *sequence); + /* these have to be filled in */ + int (*postinit)(struct drm_device *, unsigned long flags); + 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); + 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 (*version)(drm_version_t *version); + 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 */ + /*@}*/ + + struct work_struct work; + /** \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; + + 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 */ + + 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; + 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 */ +/*@{*/ + + /* 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_init(struct drm_driver *driver); +extern void drm_exit(struct drm_driver *driver); +extern int drm_version(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg); +extern int drm_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg); +extern int drm_takedown(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_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); +extern int drm_release(struct inode *inode, struct file *filp); + + /* 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) */ +#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 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); + +extern DRM_AGP_MEM *drm_alloc_agp(struct agp_bridge_data *bridge, 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); + + /* 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); + +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_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(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_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 ); +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_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 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 ); + +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(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg); +extern void drm_agp_do_release(drm_device_t *dev); +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(struct agp_bridge_data *bridge, 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); + + /* 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_get_head(drm_device_t * dev, drm_head_t *head); +extern int drm_put_head(drm_head_t * head); +extern unsigned int drm_debug; +extern unsigned int drm_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, + 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); + + /* 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, + dev_t dev, + struct device *device, + const char *fmt, ...); +extern void drm_sysfs_device_remove(dev_t 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 long offset) +{ + 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 == offset ) { + return _entry->map; + } + } + return NULL; +} + +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 + +/*@}*/ + +extern unsigned long drm_core_get_map_ofs(drm_map_t *map); +extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev); + +#endif /* __KERNEL__ */ +#endif |
