| /** |
| * \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/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" |
| |
| #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" |
| #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 , __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_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 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; |
| |
| struct drm_magic_entry { |
| struct list_head head; |
| drm_hash_item_t hash_item; |
| struct drm_file *priv; |
| struct drm_magic_entry *next; |
| }; |
| |
| 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 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 */ |
| }; |
| |
| /** 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; |
| int minor; |
| pid_t pid; |
| uid_t uid; |
| drm_magic_t magic; |
| unsigned long ioctl_count; |
| struct list_head lhead; |
| struct drm_head *head; |
| int remove_auth_on_close; |
| unsigned long lock_count; |
| 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 */ |
| #if 1 |
| atomic_t total_queued; /**< Total queued statistic */ |
| atomic_t total_flushed; /**< Total flushes statistic */ |
| atomic_t total_locks; /**< Total locks statistics */ |
| #endif |
| 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 */ |
| 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 */ |
| 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; |
| }; |
| |
| /** |
| * Mappings list |
| */ |
| struct drm_map_list { |
| struct list_head head; /**< list head */ |
| drm_hash_item_t hash; |
| struct drm_map *map; /**< mapping */ |
| unsigned int 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; |
| drm_local_map_t mapping; |
| int table_size; |
| }; |
| |
| /* |
| * 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; |
| }; |
| |
| /** |
| * 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 *, struct drm_file *); |
| void (*preclose) (struct drm_device *, struct file * filp); |
| void (*postclose) (struct drm_device *, struct drm_file *); |
| 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); |
| 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 file * filp); |
| void (*reclaim_buffers_locked) (struct drm_device *dev, |
| struct file *filp); |
| void (*reclaim_buffers_idlelocked) (struct drm_device *dev, |
| struct file * filp); |
| 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; |
| 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. |
| */ |
| 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 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; |
| drm_open_hash_t 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 */ |
| drm_open_hash_t 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 drm_map **context_sareas; /**< per-context SAREA's */ |
| int max_context; |
| |
| 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 */ |
| unsigned long *ctx_bitmap; /**< context bitmap */ |
| 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_head primary; /**< primary screen head */ |
| |
| /** \name Drawable information */ |
| /*@{ */ |
| spinlock_t drw_lock; |
| unsigned int drw_bitfield_length; |
| u32 *drw_bitfield; |
| unsigned int drw_info_length; |
| struct drm_drawable_info **drw_info; |
| /*@} */ |
| }; |
| |
| 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 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 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_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 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); |
| extern int drm_update_drawable_info(struct inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, |
| drm_drawable_t id); |
| |
| /* 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(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 file *filp); |
| extern int drm_kernel_take_hw_lock(struct file *filp); |
| |
| /* 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 inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| 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 inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| |
| extern int drm_order(unsigned long size); |
| 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 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 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(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 inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| 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 inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| extern int drm_agp_release(struct drm_device *dev); |
| extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); |
| extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info * info); |
| extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); |
| extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); |
| extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); |
| extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp, |
| unsigned int cmd, unsigned long arg); |
| extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); |
| extern int drm_agp_bind_ioctl(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(struct drm_device *dev); |
| extern int drm_put_head(struct drm_head *head); |
| extern unsigned int drm_debug; |
| extern unsigned int drm_cards_limit; |
| extern struct drm_head **drm_heads; |
| extern struct class *drm_class; |
| extern struct proc_dir_entry *drm_proc_root; |
| |
| extern drm_local_map_t *drm_getsarea(struct drm_device *dev); |
| |
| /* Proc support (drm_proc.h) */ |
| extern int drm_proc_init(struct drm_device *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(struct drm_sg_mem * 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(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) */ |
| extern struct class *drm_sysfs_create(struct module *owner, char *name); |
| extern void drm_sysfs_destroy(struct class *cs); |
| extern struct class_device *drm_sysfs_device_add(struct class *cs, |
| struct drm_head *head); |
| extern void drm_sysfs_device_remove(struct class_device *class_dev); |
| |
| /* |
| * 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); |
| 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 |
| |
| /*@}*/ |
| |
| extern unsigned long drm_core_get_map_ofs(struct drm_map * map); |
| extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev); |
| |
| #endif /* __KERNEL__ */ |
| #endif |