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Diffstat (limited to 'include/drm/drmP.h')
| -rw-r--r-- | include/drm/drmP.h | 1153 |
1 files changed, 1153 insertions, 0 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h new file mode 100644 index 000000000000..0764b662b339 --- /dev/null +++ b/include/drm/drmP.h @@ -0,0 +1,1153 @@ +/** + * \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/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/jiffies.h> +#include <linux/smp_lock.h> /* For (un)lock_kernel */ +#include <linux/dma-mapping.h> +#include <linux/mm.h> +#include <linux/cdev.h> +#include <linux/mutex.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" + +#include <linux/idr.h> + +#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))) +#define __OS_HAS_MTRR (defined(CONFIG_MTRR)) + +struct drm_file; +struct drm_device; + +#include "drm_os_linux.h" +#include "drm_hashtab.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 +#define DRIVER_FB_DMA 0x400 +#define DRIVER_IRQ_VBL2 0x800 + +/***********************************************************************/ +/** \name Begin the DRM... */ +/*@{*/ + +#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then + also include looping detection. */ + +#define DRM_MAGIC_HASH_ORDER 4 /**< 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_MEM_MM 22 +#define DRM_MEM_HASHTAB 23 + +#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) +#define DRM_MAP_HASH_OFFSET 0x10000000 + +/*@}*/ + +/***********************************************************************/ +/** \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 , __func__ , ##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 , __func__, \ + 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 , \ + __func__ , ##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_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, file_priv ) \ +do { \ + if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \ + dev->lock.file_priv != file_priv ) { \ + DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\ + __func__, _DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ),\ + dev->lock.file_priv, file_priv ); \ + 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 file_priv DRM file private pointer. + * \param cmd command. + * \param arg argument. + */ +typedef int drm_ioctl_t(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +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 + +struct drm_ioctl_desc { + unsigned int cmd; + drm_ioctl_t *func; + int flags; +}; + +/** + * Creates a driver or general drm_ioctl_desc array entry for the given + * ioctl, for use by drm_ioctl(). + */ +#define DRM_IOCTL_DEF(ioctl, func, flags) \ + [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} + +struct drm_magic_entry { + struct list_head head; + struct drm_hash_item hash_item; + struct drm_file *priv; +}; + +struct drm_vma_entry { + struct list_head head; + struct vm_area_struct *vma; + pid_t pid; +}; + +/** + * DMA buffer. + */ +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 drm_file *file_priv; /**< Private of 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 */ +}; + +/** bufs is one longer than it has to be */ +struct drm_waitlist { + int count; /**< Number of possible buffers */ + struct drm_buf **bufs; /**< List of pointers to buffers */ + struct drm_buf **rp; /**< Read pointer */ + struct drm_buf **wp; /**< Write pointer */ + struct drm_buf **end; /**< End pointer */ + spinlock_t read_lock; + spinlock_t write_lock; +}; + +struct drm_freelist { + int initialized; /**< Freelist in use */ + atomic_t count; /**< Number of free buffers */ + struct drm_buf *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; +}; + +typedef struct drm_dma_handle { + dma_addr_t busaddr; + void *vaddr; + size_t size; +} drm_dma_handle_t; + +/** + * Buffer entry. There is one of this for each buffer size order. + */ +struct drm_buf_entry { + int buf_size; /**< size */ + int buf_count; /**< number of buffers */ + struct drm_buf *buflist; /**< buffer list */ + int seg_count; + int page_order; + struct drm_dma_handle **seglist; + + struct drm_freelist freelist; +}; + +/** File private data */ +struct drm_file { + int authenticated; + int master; + pid_t pid; + uid_t uid; + drm_magic_t magic; + unsigned long ioctl_count; + struct list_head lhead; + struct drm_minor *minor; + int remove_auth_on_close; + unsigned long lock_count; + struct file *filp; + void *driver_priv; +}; + +/** Wait queue */ +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 */ + atomic_t total_queued; /**< Total queued statistic */ + atomic_t total_flushed; /**< Total flushes statistic */ + atomic_t total_locks; /**< Total locks statistics */ + enum drm_ctx_flags flags; /**< Context preserving and 2D-only */ + struct drm_waitlist waitlist; /**< Pending buffers */ + wait_queue_head_t flush_queue; /**< Processes waiting until flush */ +}; + +/** + * Lock data. + */ +struct drm_lock_data { + struct drm_hw_lock *hw_lock; /**< Hardware lock */ + /** Private of lock holder's file (NULL=kernel) */ + struct drm_file *file_priv; + wait_queue_head_t lock_queue; /**< Queue of blocked processes */ + unsigned long lock_time; /**< Time of last lock in jiffies */ + spinlock_t spinlock; + uint32_t kernel_waiters; + uint32_t user_waiters; + int idle_has_lock; +}; + +/** + * DMA data. + */ +struct drm_device_dma { + + struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ + int buf_count; /**< total number of buffers */ + struct drm_buf **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, + _DRM_DMA_USE_PCI_RO = 0x08 + } flags; + +}; + +/** + * AGP memory entry. Stored as a doubly linked list. + */ +struct drm_agp_mem { + unsigned long handle; /**< handle */ + DRM_AGP_MEM *memory; + unsigned long bound; /**< address */ + int pages; + struct list_head head; +}; + +/** + * AGP data. + * + * \sa drm_agp_init() and drm_device::agp. + */ +struct drm_agp_head { + DRM_AGP_KERN agp_info; /**< AGP device information */ + struct list_head memory; + 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; +}; + +/** + * Scatter-gather memory. + */ +struct drm_sg_mem { + unsigned long handle; + void *virtual; + int pages; + struct page **pagelist; + dma_addr_t *busaddr; +}; + +struct drm_sigdata { + int context; + struct drm_hw_lock *lock; +}; + + +/* + * Generic memory manager structs + */ + +struct drm_mm_node { + struct list_head fl_entry; + struct list_head ml_entry; + int free; + unsigned long start; + unsigned long size; + struct drm_mm *mm; + void *private; +}; + +struct drm_mm { + struct list_head fl_entry; + struct list_head ml_entry; +}; + + +/** + * Mappings list + */ +struct drm_map_list { + struct list_head head; /**< list head */ + struct drm_hash_item hash; + struct drm_map *map; /**< mapping */ + uint64_t user_token; +}; + +typedef struct drm_map drm_local_map_t; + +/** + * Context handle list + */ +struct drm_ctx_list { + struct list_head head; /**< list head */ + drm_context_t handle; /**< context handle */ + struct drm_file *tag; /**< associated fd private data */ +}; + +struct drm_vbl_sig { + struct list_head head; + unsigned int sequence; + struct siginfo info; + struct task_struct *task; +}; + +/* location of GART table */ +#define DRM_ATI_GART_MAIN 1 +#define DRM_ATI_GART_FB 2 + +#define DRM_ATI_GART_PCI 1 +#define DRM_ATI_GART_PCIE 2 +#define DRM_ATI_GART_IGP 3 + +struct drm_ati_pcigart_info { + int gart_table_location; + int gart_reg_if; + void *addr; + dma_addr_t bus_addr; + dma_addr_t table_mask; + struct drm_dma_handle *table_handle; + drm_local_map_t mapping; + int table_size; +}; + +/** + * 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_driver { + int (*load) (struct drm_device *, unsigned long flags); + int (*firstopen) (struct drm_device *); + int (*open) (struct drm_device *, struct drm_file *); + void (*preclose) (struct drm_device *, struct drm_file *file_priv); + void (*postclose) (struct drm_device *, struct drm_file *); + void (*lastclose) (struct drm_device *); + int (*unload) (struct drm_device *); + int (*suspend) (struct drm_device *, pm_message_t state); + int (*resume) (struct drm_device *); + int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); + 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); + int (*vblank_wait) (struct drm_device *dev, unsigned int *sequence); + int (*vblank_wait2) (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 drm_file * file_priv); + void (*reclaim_buffers_locked) (struct drm_device *dev, + struct drm_file *file_priv); + void (*reclaim_buffers_idlelocked) (struct drm_device *dev, + struct drm_file *file_priv); + unsigned long (*get_map_ofs) (struct drm_map * map); + unsigned long (*get_reg_ofs) (struct drm_device *dev); + void (*set_version) (struct drm_device *dev, + struct drm_set_version *sv); + + int major; + int minor; + int patchlevel; + char *name; + char *desc; + char *date; + + u32 driver_features; + int dev_priv_size; + struct drm_ioctl_desc *ioctls; + int num_ioctls; + struct file_operations fops; + struct pci_driver pci_driver; +}; + +#define DRM_MINOR_UNASSIGNED 0 +#define DRM_MINOR_LEGACY 1 + +/** + * DRM minor structure. This structure represents a drm minor number. + */ +struct drm_minor { + int index; /**< Minor device number */ + int type; /**< Control or render */ + dev_t device; /**< Device number for mknod */ + struct device kdev; /**< Linux device */ + struct drm_device *dev; + struct proc_dir_entry *dev_root; /**< proc directory entry */ +}; + +/** + * DRM device structure. This structure represent a complete card that + * may contain multiple heads. + */ +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 mutex struct_mutex; /**< 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; + enum drm_stat_type types[15]; + atomic_t counts[15]; + /*@} */ + + /** \name Authentication */ + /*@{ */ + struct list_head filelist; + struct drm_open_hash magiclist; /**< magic hash table */ + struct list_head magicfree; + /*@} */ + + /** \name Memory management */ + /*@{ */ + struct list_head maplist; /**< Linked list of regions */ + int map_count; /**< Number of mappable regions */ + struct drm_open_hash map_hash; /**< User token hash table for maps */ + + /** \name Context handle management */ + /*@{ */ + struct list_head ctxlist; /**< Linked list of context handles */ + int ctx_count; /**< Number of context handles */ + struct mutex ctxlist_mutex; /**< For ctxlist */ + + struct idr ctx_idr; + + struct list_head vmalist; /**< List of vmas (for debugging) */ + struct drm_lock_data 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 */ + struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */ + struct drm_device_dma *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; + atomic_t vbl_received2; /**< number of secondary VBLANK interrupts */ + spinlock_t vbl_lock; + struct list_head vbl_sigs; /**< signal list to send on VBLANK */ + struct list_head vbl_sigs2; /**< signals to send on secondary VBLANK */ + unsigned int vbl_pending; + spinlock_t tasklet_lock; /**< For drm_locked_tasklet */ + void (*locked_tasklet_func)(struct drm_device *dev); + + /*@} */ + 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 */ + + struct drm_agp_head *agp; /**< AGP data */ + + struct pci_dev *pdev; /**< PCI device structure */ + int pci_vendor; /**< PCI vendor id */ + int pci_device; /**< PCI device id */ +#ifdef __alpha__ + struct pci_controller *hose; +#endif + struct drm_sg_mem *sg; /**< Scatter gather memory */ + void *dev_private; /**< device private data */ + struct drm_sigdata sigdata; /**< For block_all_signals */ + sigset_t sigmask; + + struct drm_driver *driver; + drm_local_map_t *agp_buffer_map; + unsigned int agp_buffer_token; + struct drm_minor *primary; /**< render type primary screen head */ + + /** \name Drawable information */ + /*@{ */ + spinlock_t drw_lock; + struct idr drw_idr; + /*@} */ +}; + +static __inline__ int drm_core_check_feature(struct drm_device *dev, + int feature) +{ + return ((dev->driver->driver_features & feature) ? 1 : 0); +} + +#ifdef __alpha__ +#define drm_get_pci_domain(dev) dev->hose->index +#else +#define drm_get_pci_domain(dev) 0 +#endif + +#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); +} + +#define DRM_MTRR_WC MTRR_TYPE_WRCOMB + +static inline int drm_mtrr_add(unsigned long offset, unsigned long size, + unsigned int flags) +{ + return mtrr_add(offset, size, flags, 1); +} + +static inline int drm_mtrr_del(int handle, unsigned long offset, + unsigned long size, unsigned int flags) +{ + return mtrr_del(handle, offset, size); +} + +#else +#define drm_core_has_MTRR(dev) (0) + +#define DRM_MTRR_WC 0 + +static inline int drm_mtrr_add(unsigned long offset, unsigned long size, + unsigned int flags) +{ + return 0; +} + +static inline int drm_mtrr_del(int handle, unsigned long offset, + unsigned long size, unsigned int flags) +{ + return 0; +} +#endif + +/******************************************************************/ +/** \name Internal function definitions */ +/*@{*/ + + /* Driver support (drm_drv.h) */ +extern int drm_init(struct drm_driver *driver); +extern void drm_exit(struct drm_driver *driver); +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(struct drm_device *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); + + /* 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(struct drm_map * map); +extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev); +extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); + + /* 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_realloc(void *oldpt, size_t oldsize, size_t size, int area); + +extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *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 drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_getunique(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_setunique(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_getmap(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_getclient(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_getstats(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_setversion(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_noop(struct drm_device *dev, void *data, + struct drm_file *file_priv); + + /* Context IOCTL support (drm_context.h) */ +extern int drm_resctx(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_addctx(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_modctx(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_getctx(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_switchctx(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_newctx(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_rmctx(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +extern int drm_ctxbitmap_init(struct drm_device *dev); +extern void drm_ctxbitmap_cleanup(struct drm_device *dev); +extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); + +extern int drm_setsareactx(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_getsareactx(struct drm_device *dev, void *data, + struct drm_file *file_priv); + + /* Drawable IOCTL support (drm_drawable.h) */ +extern int drm_adddraw(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_rmdraw(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_update_drawable_info(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, + drm_drawable_t id); +extern void drm_drawable_free_all(struct drm_device *dev); + + /* Authentication IOCTL support (drm_auth.h) */ +extern int drm_getmagic(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_authmagic(struct drm_device *dev, void *data, + struct drm_file *file_priv); + + /* Locking IOCTL support (drm_lock.h) */ +extern int drm_lock(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_unlock(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context); +extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context); +extern void drm_idlelock_take(struct drm_lock_data *lock_data); +extern void drm_idlelock_release(struct drm_lock_data *lock_data); + +/* + * These are exported to drivers so that they can implement fencing using + * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. + */ + +extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv); + + /* Buffer management support (drm_bufs.h) */ +extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request); +extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request); +extern int drm_addmap(struct drm_device *dev, unsigned int offset, + unsigned int size, enum drm_map_type type, + enum drm_map_flags flags, drm_local_map_t ** map_ptr); +extern int drm_addmap_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_rmmap(struct drm_device *dev, drm_local_map_t *map); +extern int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map); +extern int drm_rmmap_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_addbufs(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_infobufs(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_markbufs(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_freebufs(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_mapbufs(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_order(unsigned long size); +extern unsigned long drm_get_resource_start(struct drm_device *dev, + unsigned int resource); +extern unsigned long drm_get_resource_len(struct drm_device *dev, + unsigned int resource); + + /* DMA support (drm_dma.h) */ +extern int drm_dma_setup(struct drm_device *dev); +extern void drm_dma_takedown(struct drm_device *dev); +extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf); +extern void drm_core_reclaim_buffers(struct drm_device *dev, + struct drm_file *filp); + + /* IRQ support (drm_irq.h) */ +extern int drm_control(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); +extern int drm_irq_uninstall(struct drm_device *dev); +extern void drm_driver_irq_preinstall(struct drm_device *dev); +extern void drm_driver_irq_postinstall(struct drm_device *dev); +extern void drm_driver_irq_uninstall(struct drm_device *dev); + +extern int drm_wait_vblank(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); +extern void drm_vbl_send_signals(struct drm_device *dev); +extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*)); + + /* AGP/GART support (drm_agpsupport.h) */ +extern struct drm_agp_head *drm_agp_init(struct drm_device *dev); +extern int drm_agp_acquire(struct drm_device *dev); +extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_agp_release(struct drm_device *dev); +extern int drm_agp_release_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); +extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info); +extern int drm_agp_info_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); +extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); +extern int drm_agp_free_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); +extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); +extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +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(struct drm_device *dev); +extern int drm_put_minor(struct drm_minor **minor); +extern unsigned int drm_debug; + +extern struct class *drm_class; +extern struct proc_dir_entry *drm_proc_root; + +extern struct idr drm_minors_idr; + +extern drm_local_map_t *drm_getsarea(struct drm_device *dev); + + /* Proc support (drm_proc.h) */ +extern int drm_proc_init(struct drm_minor *minor, int minor_id, + struct proc_dir_entry *root); +extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root); + + /* Scatter Gather Support (drm_scatter.h) */ +extern void drm_sg_cleanup(struct drm_sg_mem * entry); +extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); +extern int drm_sg_free(struct drm_device *dev, void *data, + struct drm_file *file_priv); + + /* ATI PCIGART support (ati_pcigart.h) */ +extern int drm_ati_pcigart_init(struct drm_device *dev, + struct drm_ati_pcigart_info * gart_info); +extern int drm_ati_pcigart_cleanup(struct drm_device *dev, + struct drm_ati_pcigart_info * gart_info); + +extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, + size_t align, dma_addr_t maxaddr); +extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); +extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); + + /* sysfs support (drm_sysfs.c) */ +struct drm_sysfs_class; +extern struct class *drm_sysfs_create(struct module *owner, char *name); +extern void drm_sysfs_destroy(void); +extern int drm_sysfs_device_add(struct drm_minor *minor); +extern void drm_sysfs_device_remove(struct drm_minor *minor); + +/* + * Basic memory manager support (drm_mm.c) + */ +extern struct drm_mm_node *drm_mm_get_block(struct drm_mm_node * parent, + unsigned long size, + unsigned alignment); +extern void drm_mm_put_block(struct drm_mm_node * cur); +extern struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, unsigned long size, + unsigned alignment, int best_match); +extern int drm_mm_init(struct drm_mm *mm, unsigned long start, unsigned long size); +extern void drm_mm_takedown(struct drm_mm *mm); +extern int drm_mm_clean(struct drm_mm *mm); +extern unsigned long drm_mm_tail_space(struct drm_mm *mm); +extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size); +extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size); + +extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev); +extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev); + +static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev, + unsigned int token) +{ + struct drm_map_list *_entry; + list_for_each_entry(_entry, &dev->maplist, head) + if (_entry->user_token == token) + return _entry->map; + return NULL; +} + +static __inline__ int drm_device_is_agp(struct drm_device *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(struct drm_device *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); +} + +/** Wrapper around kcalloc() */ +static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area) +{ + return kcalloc(nmemb, size, GFP_KERNEL); +} +#else +extern void *drm_alloc(size_t size, int area); +extern void drm_free(void *pt, size_t size, int area); +extern void *drm_calloc(size_t nmemb, size_t size, int area); +#endif + +/*@}*/ + +#endif /* __KERNEL__ */ +#endif |