/** * \file drmP.h * Private header for Direct Rendering Manager * * \author Rickard E. (Rik) Faith * \author Gareth Hughes */ /* * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * Copyright (c) 2009-2010, Code Aurora Forum. * 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 defined(_KERNEL) || defined(__KERNEL__) #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef __x86_64__ #include #endif #include #include #include #include #include #include #include MALLOC_DECLARE(M_DRM); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct drm_file; struct drm_device; struct drm_agp_head; struct drm_gem_object; struct device_node; struct videomode; #include #include #include /* * 4 debug categories are defined: * * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... * This is the category used by the DRM_DEBUG() macro. * * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... * This is the category used by the DRM_DEBUG_DRIVER() macro. * * KMS: used in the modesetting code. * This is the category used by the DRM_DEBUG_KMS() macro. * * PRIME: used in the prime code. * This is the category used by the DRM_DEBUG_PRIME() macro. * * Enabling verbose debug messages is done through the drm.debug parameter, * each category being enabled by a bit. * * drm.debug=0x1 will enable CORE messages * drm.debug=0x2 will enable DRIVER messages * drm.debug=0x3 will enable CORE and DRIVER messages * ... * drm.debug=0xf will enable all messages * * An interesting feature is that it's possible to enable verbose logging at * run-time by echoing the debug value in its sysfs node: * # echo 0xf > /sys/module/drm/parameters/debug */ #define DRM_UT_CORE 0x01 #define DRM_UT_DRIVER 0x02 #define DRM_UT_KMS 0x04 #define DRM_UT_PRIME 0x08 void drm_ut_debug_printk(const char *function_name, const char *format, ...); void drm_err(const char *func, const char *format, ...); /***********************************************************************/ /** \name DRM template customization defaults */ /*@{*/ /* driver capabilities and requirements mask */ #define DRIVER_USE_AGP 0x1 #define DRIVER_REQUIRE_AGP 0x2 #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_DMA_QUEUE 0x200 #define DRIVER_GEM 0x1000 #define DRIVER_MODESET 0x2000 #define DRIVER_PRIME 0x4000 #define DRIVER_RENDER 0x8000 /***********************************************************************/ /** \name Begin the DRM... */ /*@{*/ #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ /*@}*/ /***********************************************************************/ /** \name Macros to make printk easier */ /*@{*/ /** * Error output. * * \param fmt printf() like format string. * \param arg arguments */ #define DRM_ERROR(fmt, ...) \ kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ DRM_CURRENTPID, __func__ , ##__VA_ARGS__) #define DRM_GEM_MAPPING_MASK (3ULL << 62) #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ #define DRM_GEM_MAX_IDX 0x3fffff #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) #define DRM_GEM_MAPPING_MAPOFF(o) \ ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) SYSCTL_DECL(_hw_drm); #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) #define DRM_IF_VERSION(maj, min) (maj << 16 | min) #define __OS_HAS_AGP 1 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) #define DRM_DEV_UID 0 #define DRM_DEV_GID 0 #define DRM_CURPROC curthread #define DRM_STRUCTPROC struct thread #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE) #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE) #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout))) #if defined(INVARIANTS) #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0); #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0); #else #define DRM_LOCK_ASSERT(d) #define DRM_UNLOCK_ASSERT(d) #endif #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) typedef void irqreturn_t; #define IRQ_HANDLED /* nothing */ #define IRQ_NONE /* nothing */ enum { DRM_IS_NOT_AGP, DRM_IS_AGP, DRM_MIGHT_BE_AGP }; #define DRM_AGP_MEM struct agp_memory_info #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) #define DRM_AGP_FIND_DEVICE() agp_find_device() #define DRM_MTRR_WC MDF_WRITECOMBINE #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\n", \ __FUNCTION__); \ return EINVAL; \ } \ } while (0) /* Returns -errno to shared code */ #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ for ( ret = 0 ; !ret && !(condition) ; ) { \ DRM_UNLOCK(dev); \ lwkt_serialize_enter(&dev->irq_lock); \ if (!(condition)) { \ tsleep_interlock(&(queue), PCATCH); \ lwkt_serialize_exit(&dev->irq_lock); \ ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ "drmwtq", (timeout)); \ } else { \ lwkt_serialize_exit(&dev->irq_lock); \ } \ DRM_LOCK(dev); \ } int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, vm_memattr_t memattr); void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); /***********************************************************************/ /** \name Macros to make printk easier */ /*@{*/ #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) #define DRM_INFO_ONCE(fmt, ...) \ printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) #define DRM_DEBUGBITS_DEBUG 0x1 #define DRM_DEBUGBITS_KMS 0x2 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 #define DRM_DEBUGBITS_VERBOSE 0x8 #define DRM_DEBUG(fmt, ...) do { \ if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ __func__ , ##__VA_ARGS__); \ } while (0) #define DRM_DEBUG_VERBOSE(fmt, ...) do { \ if ((drm_debug & DRM_DEBUGBITS_VERBOSE) != 0) \ kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ __func__ , ##__VA_ARGS__); \ } while (0) #define DRM_DEBUG_KMS(fmt, ...) do { \ if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ __func__ , ##__VA_ARGS__); \ } while (0) #define DRM_DEBUG_DRIVER(fmt, ...) do { \ if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ __func__ , ##__VA_ARGS__); \ } while (0) #define DRM_LOG_KMS(fmt, ...) do { \ kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \ __func__ , ##__VA_ARGS__); \ } while (0) #define dev_dbg(dev, fmt, ...) do { \ if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ } \ } while (0) typedef struct drm_pci_id_list { int vendor; int device; long driver_private; char *name; } drm_pci_id_list_t; struct drm_msi_blacklist_entry { int vendor; int device; }; /** * 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_IOCTL_NR(n) ((n) & 0xff) #define DRM_AUTH 0x1 #define DRM_MASTER 0x2 #define DRM_ROOT_ONLY 0x4 #define DRM_CONTROL_ALLOW 0x8 #define DRM_UNLOCKED 0x10 #define DRM_RENDER_ALLOW 0x20 struct drm_ioctl_desc { unsigned int cmd; int flags; drm_ioctl_t *func; unsigned int cmd_drv; const char *name; }; /** * Creates a driver or general drm_ioctl_desc array entry for the given * ioctl, for use by drm_ioctl(). */ #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} typedef struct drm_magic_entry { struct list_head head; struct drm_hash_item hash_item; 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_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 */ 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 */ } drm_buf_t; /** 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 */ struct spinlock *read_lock; struct spinlock *write_lock; }; typedef struct drm_dma_handle { void *vaddr; size_t size; bus_addr_t busaddr; bus_dma_tag_t tag; bus_dmamap_t map; } drm_dma_handle_t; typedef struct drm_buf_entry { int buf_size; int buf_count; drm_buf_t *buflist; int seg_count; int page_order; struct drm_dma_handle **seglist; int low_mark; /**< Low water mark */ int high_mark; /**< High water mark */ } drm_buf_entry_t; /* Event queued up for userspace to read */ struct drm_pending_event { struct drm_event *event; struct list_head link; struct drm_file *file_priv; pid_t pid; /* pid of requester, no guarantee it's valid by the time we deliver the event, for tracing only */ void (*destroy)(struct drm_pending_event *event); }; /* initial implementaton using a linked list - todo hashtab */ struct drm_prime_file_private { struct list_head head; #ifdef DUMBBELL_WIP struct mutex lock; #endif /* DUMBBELL_WIP */ }; /** File private data */ struct drm_file { int authenticated; struct drm_device *dev; int master; /* true when the client has asked us to expose stereo 3D mode flags */ bool stereo_allowed; /* * true if client understands CRTC primary planes and cursor planes * in the plane list */ unsigned universal_planes:1; pid_t pid; uid_t uid; drm_magic_t magic; unsigned long ioctl_count; struct list_head lhead; struct kqinfo dkq; /** Mapping of mm object handles to object pointers. */ struct idr object_idr; /** Lock for synchronization of access to object_idr. */ struct lock table_lock; void *driver_priv; int is_master; struct drm_master *masterp; /** * fbs - List of framebuffers associated with this file. * * Protected by fbs_lock. Note that the fbs list holds a reference on * the fb object to prevent it from untimely disappearing. */ struct list_head fbs; struct lock fbs_lock; wait_queue_head_t event_wait; struct list_head event_list; int event_space; struct drm_prime_file_private prime; }; /** 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 */ }; /* This structure, in the struct drm_device, is always initialized while the * device * is open. dev->dma_lock protects the incrementing of dev->buf_use, which * when set marks that no further bufs may be allocated until device teardown * occurs (when the last open of the device has closed). The high/low * watermarks of bufs are only touched by the X Server, and thus not * concurrently accessed, so no locking is needed. */ typedef 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; } drm_device_dma_t; typedef struct drm_sg_mem { vm_offset_t vaddr; vm_paddr_t *busaddr; vm_pindex_t pages; } drm_sg_mem_t; /** * Kernel side of a mapping */ struct drm_local_map { resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ unsigned long size; /**< Requested physical size (bytes) */ enum drm_map_type type; /**< Type of memory to map */ enum drm_map_flags flags; /**< Flags */ void *handle; /**< User-space: "Handle" to pass to mmap() */ /**< Kernel-space: kernel-virtual address */ int mtrr; /**< MTRR slot used */ }; typedef struct drm_local_map drm_local_map_t; /** * Mappings list */ struct drm_map_list { struct list_head head; /**< list head */ struct drm_hash_item hash; struct drm_local_map *map; /**< mapping */ uint64_t user_token; struct drm_master *master; struct drm_mm_node *file_offset_node; /**< fake offset */ }; /** * GEM specific mm private for tracking GEM objects */ struct drm_gem_mm { struct drm_vma_offset_manager vma_manager; struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */ struct drm_open_hash offset_hash; /**< User token hash table for maps */ struct unrhdr *idxunr; }; #include "drm_crtc.h" /** * struct drm_master - drm master structure * * @refcount: Refcount for this master object. * @minor: Link back to minor char device we are master for. Immutable. * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex. * @unique_len: Length of unique field. Protected by drm_global_mutex. * @unique_size: Amount allocated. Protected by drm_global_mutex. * @magiclist: Hash of used authentication tokens. Protected by struct_mutex. * @magicfree: List of used authentication tokens. Protected by struct_mutex. * @lock: DRI lock information. * @driver_priv: Pointer to driver-private information. */ struct drm_master { struct kref refcount; /* refcount for this master */ struct list_head head; /**< each minor contains a list of masters */ struct drm_minor *minor; /**< link back to minor we are a master for */ char *unique; /**< Unique identifier: e.g., busid */ int unique_len; /**< Length of unique field */ int unique_size; /**< amount allocated */ int blocked; /**< Blocked due to VC switch? */ struct drm_open_hash magiclist; struct list_head magicfree; struct drm_lock_data lock; void *driver_priv; }; /* Size of ringbuffer for vblank timestamps. Just double-buffer * in initial implementation. */ #define DRM_VBLANKTIME_RBSIZE 2 /* Flags and return codes for get_vblank_timestamp() driver function. */ #define DRM_CALLED_FROM_VBLIRQ 1 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) #define DRM_VBLANKTIME_IN_VBLANK (1 << 1) /* get_scanout_position() return flags */ #define DRM_SCANOUTPOS_VALID (1 << 0) #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) #define DRM_SCANOUTPOS_ACCURATE (1 << 2) #ifndef DMA_BIT_MASK #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) #endif #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) /** * 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 (*use_msi)(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 *); void (*reclaim_buffers_locked)(struct drm_device *, struct drm_file *file_priv); 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 (*dma_flush_block_and_flush)(struct drm_device *, int context, enum drm_lock_flags flags); int (*dma_flush_unblock)(struct drm_device *, int context, enum drm_lock_flags flags); int (*context_ctor)(struct drm_device *dev, int context); int (*context_dtor)(struct drm_device *dev, int context); int (*kernel_context_switch)(struct drm_device *dev, int old, int new); int (*kernel_context_switch_unlock)(struct drm_device *dev); void (*irq_preinstall)(struct drm_device *dev); int (*irq_postinstall)(struct drm_device *dev); void (*irq_uninstall)(struct drm_device *dev); void (*irq_handler)(void *arg); u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); int (*enable_vblank)(struct drm_device *dev, int crtc); void (*disable_vblank)(struct drm_device *dev, int crtc); /** * Called by vblank timestamping code. * * Return the current display scanout position from a crtc, and an * optional accurate ktime_get timestamp of when position was measured. * * \param dev DRM device. * \param crtc Id of the crtc to query. * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). * \param *vpos Target location for current vertical scanout position. * \param *hpos Target location for current horizontal scanout position. * \param *stime Target location for timestamp taken immediately before * scanout position query. Can be NULL to skip timestamp. * \param *etime Target location for timestamp taken immediately after * scanout position query. Can be NULL to skip timestamp. * * Returns vpos as a positive number while in active scanout area. * Returns vpos as a negative number inside vblank, counting the number * of scanlines to go until end of vblank, e.g., -1 means "one scanline * until start of active scanout / end of vblank." * * \return Flags, or'ed together as follows: * * DRM_SCANOUTPOS_VALID = Query successful. * DRM_SCANOUTPOS_INVBL = Inside vblank. * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of * this flag means that returned position may be offset by a constant * but unknown small number of scanlines wrt. real scanout position. * */ int (*get_scanout_position) (struct drm_device *dev, int crtc, unsigned int flags, int *vpos, int *hpos, ktime_t *stime, ktime_t *etime); int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, int *max_error, struct timeval *vblank_time, unsigned flags); void (*gem_free_object)(struct drm_gem_object *obj); int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); struct cdev_pager_ops *gem_pager_ops; int (*dumb_create)(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args); int (*dumb_map_offset)(struct drm_file *file_priv, struct drm_device *dev, uint32_t handle, uint64_t *offset); int (*dumb_destroy)(struct drm_file *file_priv, struct drm_device *dev, uint32_t handle); int (*sysctl_init)(struct drm_device *dev, struct sysctl_ctx_list *ctx, struct sysctl_oid *top); void (*sysctl_cleanup)(struct drm_device *dev); drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ /** * 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); int major; int minor; int patchlevel; const char *name; /* Simple driver name */ const char *desc; /* Longer driver name */ const char *date; /* Date of last major changes. */ u32 driver_features; int dev_priv_size; const struct drm_ioctl_desc *ioctls; int num_ioctls; }; /** * Info file list entry. This structure represents a debugfs or proc file to * be created by the drm core */ struct drm_info_list { const char *name; /** file name */ int (*show)(struct seq_file*, void*); /** show callback */ u32 driver_features; /**< Required driver features for this entry */ void *data; }; /** * debugfs node structure. This structure represents a debugfs file. */ struct drm_info_node { struct list_head list; struct drm_minor *minor; const struct drm_info_list *info_ent; struct dentry *dent; }; /** * DRM minor structure. This structure represents a drm minor number. */ struct drm_minor { int index; /**< Minor device number */ int type; /**< Control or render */ device_t kdev; /**< OS device */ struct drm_device *dev; struct drm_master *master; /* currently active master for this node */ struct list_head master_list; struct drm_mode_group mode_group; }; struct drm_pending_vblank_event { struct drm_pending_event base; int pipe; struct drm_event_vblank event; }; struct drm_sysctl_info { struct sysctl_ctx_list ctx; char name[2]; }; /* Length for the array of resource pointers for drm_get_resource_*. */ #define DRM_MAX_PCI_RESOURCE 6 struct drm_vblank_crtc { struct drm_device *dev; /* pointer to the drm_device */ wait_queue_head_t queue; /**< VBLANK wait queue */ struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */ struct timer_list disable_timer; /* delayed disable timer */ atomic_t count; /**< number of VBLANK interrupts */ atomic_t refcount; /* number of users of vblank interruptsper crtc */ u32 last; /* protected by dev->vbl_lock, used */ /* for wraparound handling */ u32 last_wait; /* Last vblank seqno waited per CRTC */ unsigned int inmodeset; /* Display driver is setting mode */ int crtc; /* crtc index */ bool enabled; /* so we don't call enable more than once per disable */ }; /** * DRM device structure. This structure represent a complete card that * may contain multiple heads. */ struct drm_device { drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ uint16_t pci_subdevice; /* PCI subsystem device id */ uint16_t pci_subvendor; /* PCI subsystem vendor id */ char *unique; /* Unique identifier: e.g., busid */ int unique_len; /* Length of unique field */ struct cdev *devnode; /* Device number for mknod */ int if_version; /* Highest interface version set */ int flags; /* Flags to open(2) */ /* Locks */ struct spinlock dma_lock; /* protects dev->dma */ struct lwkt_serialize irq_lock; /* protects irq condition checks */ struct lock dev_lock; /* protects everything else */ /** \name Locks */ /*@{ */ struct lock struct_mutex; /**< For others */ struct lock master_mutex; /**< For drm_minor::master */ /*@} */ /** \name Usage Counters */ /*@{ */ int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ struct spinlock buf_lock; /**< For drm_device::buf_use and a few other things. */ 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]; /*@} */ /* Authentication */ struct drm_open_hash magiclist; /**< magic hash table */ struct list_head magicfree; struct list_head filelist; /** \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 lock ctxlist_mutex; /**< For ctxlist */ struct idr ctx_idr; /*@} */ struct drm_lock_data lock; /* Information on hardware lock */ /* DMA queues (contexts) */ drm_device_dma_t *dma; /* Optional pointer for DMA support */ int irq; /* Interrupt used by board */ int irq_type; /* IRQ type (MSI enabled or not) */ int irqrid; /* Interrupt used by board */ struct resource *irqr; /* Resource for interrupt used by board */ void *irqh; /* Handle from bus_setup_intr */ /* Storage of resource pointers for drm_get_resource_* */ struct resource *pcir[DRM_MAX_PCI_RESOURCE]; int pcirid[DRM_MAX_PCI_RESOURCE]; int pci_domain; int pci_bus; int pci_slot; int pci_func; /** \name Context support */ /*@{ */ 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 */ 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 */ /*@} */ /** \name VBLANK IRQ support */ /*@{ */ /* * At load time, disabling the vblank interrupt won't be allowed since * old clients may not call the modeset ioctl and therefore misbehave. * Once the modeset ioctl *has* been called though, we can safely * disable them when unused. */ bool vblank_disable_allowed; /* * If true, vblank interrupt will be disabled immediately when the * refcount drops to zero, as opposed to via the vblank disable * timer. * This can be set to true it the hardware has a working vblank * counter and the driver uses drm_vblank_on() and drm_vblank_off() * appropriately. */ bool vblank_disable_immediate; /* array of size num_crtcs */ struct drm_vblank_crtc *vblank; struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ struct lock vbl_lock; struct timer_list vblank_disable_timer; u32 max_vblank_count; /**< size of vblank counter register */ /** * List of events */ struct list_head vblank_event_list; struct lock event_lock; /*@} */ struct sigio *buf_sigio; /* Processes waiting for SIGIO */ /* Sysctl support */ struct drm_sysctl_info *sysctl; drm_sg_mem_t *sg; /* Scatter gather memory */ unsigned int num_crtcs; /**< Number of CRTCs on this device */ unsigned long *ctx_bitmap; void *dev_private; void *drm_ttm_bdev; /*@} */ struct drm_agp_head *agp; /**< AGP data */ struct device *dev; /**< Device structure */ struct pci_dev *pdev; /**< PCI device structure */ int pci_vendor; /**< PCI vendor id */ int pci_device; /**< PCI device id */ struct drm_driver *driver; struct drm_local_map *agp_buffer_map; unsigned int agp_buffer_token; struct drm_minor *control; /**< Control node for card */ struct drm_minor *primary; /**< render type primary screen head */ struct drm_mode_config mode_config; /**< Current mode config */ /** \name GEM information */ /*@{ */ struct lock object_name_lock; struct idr object_name_idr; /*@} */ void *mm_private; void *sysctl_private; char busid_str[128]; int modesetting; int switch_power_state; atomic_t unplugged; /* device has been unplugged or gone away */ }; #define DRM_SWITCH_POWER_ON 0 #define DRM_SWITCH_POWER_OFF 1 #define DRM_SWITCH_POWER_CHANGING 2 #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 static __inline__ int drm_core_check_feature(struct drm_device *dev, int feature) { return ((dev->driver->driver_features & feature) ? 1 : 0); } static inline void drm_device_set_unplugged(struct drm_device *dev) { smp_wmb(); atomic_set(&dev->unplugged, 1); } static inline int drm_device_is_unplugged(struct drm_device *dev) { int ret = atomic_read(&dev->unplugged); smp_rmb(); return ret; } static inline bool drm_is_primary_client(const struct drm_file *file_priv) { return 0 /* file_priv->minor->type == DRM_MINOR_LEGACY */; } /** * drm_is_master() - Check whether a DRM open-file is DRM-Master * @file: DRM open-file context * * This checks whether a DRM open-file context is owner of the master context * attached to it. If a file owns a master context, it's called DRM-Master. * Per DRM device, only one such file can be DRM-Master at a time. * * Returns: True if the file is DRM-Master, otherwise false. */ static inline bool drm_is_master(const struct drm_file *file) { #if 0 return file->master && file->master == file->minor->master; #else return true; #endif } /******************************************************************/ /** \name Internal function definitions */ /*@{*/ #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 extern int drm_notyet_flag; extern unsigned int drm_rnodes; extern unsigned int drm_universal_planes; extern int drm_vblank_offdelay; extern unsigned int drm_timestamp_precision; extern unsigned int drm_timestamp_monotonic; /* Driver support (drm_drv.h) */ int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); int drm_create_cdevs(device_t kdev); d_ioctl_t drm_ioctl; extern int drm_lastclose(struct drm_device *dev); extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags); /* Device support (drm_fops.h) */ extern struct lock drm_global_mutex; d_open_t drm_open; d_close_t drm_close; d_read_t drm_read; d_kqfilter_t drm_kqfilter; int drm_release(device_t kdev); d_mmap_t drm_mmap; d_mmap_single_t drm_mmap_single; void drm_cdevpriv_dtor(void *cd); int drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx, struct sysctl_oid *top); /* File operations helpers (drm_fops.c) */ extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p, struct drm_device *dev, struct file *fp); extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, DRM_STRUCTPROC *p); #ifdef DUMBBELL_WIP extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, struct drm_file *file_priv, uint32_t handle, uint32_t flags, int *prime_fd); extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, struct drm_file *file_priv, int prime_fd, uint32_t *handle); extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, dma_addr_t *addrs, int max_pages); #endif /* DUMBBELL_WIP */ extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); #ifdef DUMBBELL_WIP void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, struct drm_gem_object **obj); #endif /* DUMBBELL_WIP */ void drm_mem_init(void); void drm_mem_uninit(void); void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); void drm_ioremapfree(drm_local_map_t *map); int drm_mtrr_add(unsigned long offset, size_t size, int flags); int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); /* Locking IOCTL support (drm_lock.c) */ int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context); int drm_lock_transfer(struct drm_lock_data *lock_data, unsigned int context); int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context); /* * These are exported to drivers so that they can implement fencing using * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. */ unsigned long drm_get_resource_start(struct drm_device *dev, unsigned int resource); unsigned long drm_get_resource_len(struct drm_device *dev, unsigned int resource); /* IRQ support (drm_irq.h) */ extern int drm_irq_install(struct drm_device *dev, int irq); int drm_irq_uninstall(struct drm_device *dev); void drm_driver_irq_preinstall(struct drm_device *dev); void drm_driver_irq_postinstall(struct drm_device *dev); void drm_driver_irq_uninstall(struct drm_device *dev); extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); extern int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *filp); extern u32 drm_vblank_count(struct drm_device *dev, int crtc); extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, struct timeval *vblanktime); extern void drm_send_vblank_event(struct drm_device *dev, int crtc, struct drm_pending_vblank_event *e); extern bool drm_handle_vblank(struct drm_device *dev, int crtc); extern int drm_vblank_get(struct drm_device *dev, int crtc); extern void drm_vblank_put(struct drm_device *dev, int crtc); extern int drm_crtc_vblank_get(struct drm_crtc *crtc); extern void drm_crtc_vblank_put(struct drm_crtc *crtc); extern void drm_wait_one_vblank(struct drm_device *dev, int crtc); extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc); extern void drm_vblank_off(struct drm_device *dev, int crtc); extern void drm_vblank_on(struct drm_device *dev, int crtc); extern void drm_crtc_vblank_off(struct drm_crtc *crtc); extern void drm_crtc_vblank_on(struct drm_crtc *crtc); extern void drm_vblank_cleanup(struct drm_device *dev); extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc, int *max_error, struct timeval *vblank_time, unsigned flags, const struct drm_crtc *refcrtc, const struct drm_display_mode *mode); extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, const struct drm_display_mode *mode); /** * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC * @crtc: which CRTC's vblank waitqueue to retrieve * * This function returns a pointer to the vblank waitqueue for the CRTC. * Drivers can use this to implement vblank waits using wait_event() & co. */ static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc) { return &crtc->dev->vblank[drm_crtc_index(crtc)].queue; } /* Modesetting support */ extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); extern int drm_modeset_ctl(struct drm_device *dev, void *data, struct drm_file *file_priv); /* AGP/GART support (drm_agpsupport.h) */ #include /* sysctl support (drm_sysctl.h) */ extern int drm_sysctl_init(struct drm_device *dev); extern int drm_sysctl_cleanup(struct drm_device *dev); /* Cache management (drm_memory.c) */ void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); /* Locking IOCTL support (drm_drv.c) */ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv); /* * 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); /* Misc. IOCTL support (drm_ioctl.c) */ int drm_irq_by_busid(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_getunique(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_setunique(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_getmap(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_getclient(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_getstats(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_setclientcap(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_noop(struct drm_device *dev, void *data, struct drm_file *file_priv); /* Authentication IOCTL support (drm_auth.c) */ int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_authmagic(struct drm_device *dev, void *data, struct drm_file *file_priv); /* Cache management (drm_cache.c) */ void drm_clflush_virt_range(void *addr, unsigned long length); /* DMA support (drm_dma.c) */ int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); /* IRQ support (drm_irq.c) */ int drm_control(struct drm_device *dev, void *data, struct drm_file *file_priv); /* Stub support (drm_stub.h) */ extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern void drm_put_dev(struct drm_device *dev); extern void drm_unplug_dev(struct drm_device *dev); extern unsigned int drm_debug; /* Scatter Gather Support (drm_scatter.c) */ int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_sg_free(struct drm_device *dev, void *data, struct drm_file *file_priv); /* consistent PCI memory functions (drm_pci.c) */ extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, size_t align); 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_hotplug_event(struct drm_device *dev); extern void drm_sysfs_device_remove(struct drm_minor *minor); extern int drm_sysfs_connector_add(struct drm_connector *connector); extern void drm_sysfs_connector_remove(struct drm_connector *connector); int drm_gem_close_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_gem_flink_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_gem_open_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, vm_size_t size, struct vm_object **obj_res, int nprot); void drm_gem_pager_dtr(void *obj); struct ttm_bo_device; int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, vm_size_t size, struct vm_object **obj_res, int nprot); struct ttm_buffer_object; void ttm_bo_release_mmap(struct ttm_buffer_object *bo); void drm_device_lock_mtx(struct drm_device *dev); void drm_device_unlock_mtx(struct drm_device *dev); int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, const char *msg, int timeout); void drm_device_assert_mtx_locked(struct drm_device *dev); void drm_device_assert_mtx_unlocked(struct drm_device *dev); void drm_device_lock_struct(struct drm_device *dev); void drm_device_unlock_struct(struct drm_device *dev); int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, const char *msg, int timeout); void drm_device_assert_struct_locked(struct drm_device *dev); void drm_device_assert_struct_unlocked(struct drm_device *dev); void drm_compat_locking_init(struct drm_device *dev); void drm_sleep_locking_init(struct drm_device *dev); /* XXX glue logic, should be done in drm_pci_init(), pending drm update */ void drm_init_pdev(struct device *dev, struct pci_dev **pdev); void drm_fini_pdev(struct pci_dev **pdev); /* Inline replacements for drm_alloc and friends */ static __inline__ void * drm_alloc(size_t size, struct malloc_type *area) { return kmalloc(size, area, M_WAITOK | M_NULLOK); } static __inline__ void * drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) { return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO); } static __inline__ void drm_free(void *pt, struct malloc_type *area) { /* kfree is special!!! */ if (pt != NULL) (kfree)(pt, area); } static __inline__ void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) { map->handle = drm_ioremap_wc(dev, map); } static __inline__ void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) { map->handle = drm_ioremap(dev, map); } static __inline__ void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) { if ( map->handle && map->size ) drm_ioremapfree(map); } static __inline__ struct drm_local_map * drm_core_findmap(struct drm_device *dev, unsigned long offset) { struct drm_map_list *_entry; list_for_each_entry(_entry, &dev->maplist, head) { if (offset == (unsigned long)_entry->map->handle) return _entry->map; } return NULL; } static __inline__ void drm_core_dropmap(struct drm_map *map) { } #include struct drm_device *drm_dev_alloc(struct drm_driver *driver, struct device *parent); void drm_dev_ref(struct drm_device *dev); void drm_dev_unref(struct drm_device *dev); int drm_dev_register(struct drm_device *dev, unsigned long flags); void drm_dev_unregister(struct drm_device *dev); int drm_dev_set_unique(struct drm_device *dev, const char *fmt, ...); /* FreeBSD compatibility macros */ #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) #define DRM_PCIE_SPEED_25 1 #define DRM_PCIE_SPEED_50 2 #define DRM_PCIE_SPEED_80 4 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); /* XXX bad */ #define drm_can_sleep() (HZ & 1) #endif /* __KERNEL__ */ #endif /* _DRM_P_H_ */