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89f6b8632c
freebsd-dev/sys/dev/drm/drmP.h
Attilio Rao 89f6b8632c Switch the vm_object mutex to be a rwlock. This will enable in the 
future further optimizations where the vm_object lock will be held
in read mode most of the time the page cache resident pool of pages
are accessed for reading purposes.

The change is mostly mechanical but few notes are reported:
* The KPI changes as follow:
  - VM_OBJECT_LOCK() -> VM_OBJECT_WLOCK()
  - VM_OBJECT_TRYLOCK() -> VM_OBJECT_TRYWLOCK()
  - VM_OBJECT_UNLOCK() -> VM_OBJECT_WUNLOCK()
  - VM_OBJECT_LOCK_ASSERT(MA_OWNED) -> VM_OBJECT_ASSERT_WLOCKED()
    (in order to avoid visibility of implementation details)
  - The read-mode operations are added:
    VM_OBJECT_RLOCK(), VM_OBJECT_TRYRLOCK(), VM_OBJECT_RUNLOCK(),
    VM_OBJECT_ASSERT_RLOCKED(), VM_OBJECT_ASSERT_LOCKED()
* The vm/vm_pager.h namespace pollution avoidance (forcing requiring
  sys/mutex.h in consumers directly to cater its inlining functions
  using VM_OBJECT_LOCK()) imposes that all the vm/vm_pager.h
  consumers now must include also sys/rwlock.h.
* zfs requires a quite convoluted fix to include FreeBSD rwlocks into
  the compat layer because the name clash between FreeBSD and solaris
  versions must be avoided.
  At this purpose zfs redefines the vm_object locking functions
  directly, isolating the FreeBSD components in specific compat stubs.

The KPI results heavilly broken by this commit.  Thirdy part ports must
be updated accordingly (I can think off-hand of VirtualBox, for example).

Sponsored by:	EMC / Isilon storage division
Reviewed by:	jeff
Reviewed by:	pjd (ZFS specific review)
Discussed with:	alc
Tested by:	pho
2013-03-09 02:32:23 +00:00

1023 lines
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/* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.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.
*
* Authors:
* Rickard E. (Rik) Faith <faith@valinux.com>
* Gareth Hughes <gareth@valinux.com>
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifndef _DRM_P_H_
#define _DRM_P_H_
#if defined(_KERNEL) || defined(__KERNEL__)
struct drm_device;
struct drm_file;
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/sglist.h>
#include <sys/stat.h>
#if __FreeBSD_version >= 700000
#include <sys/priv.h>
#endif
#include <sys/proc.h>
#include <sys/lock.h>
#include <sys/fcntl.h>
#include <sys/uio.h>
#include <sys/filio.h>
#include <sys/rwlock.h>
#include <sys/sysctl.h>
#include <sys/bus.h>
#include <sys/queue.h>
#include <sys/signalvar.h>
#include <sys/poll.h>
#include <sys/taskqueue.h>
#include <sys/tree.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <vm/vm_extern.h>
#include <vm/vm_kern.h>
#include <vm/vm_map.h>
#include <vm/vm_object.h>
#include <vm/vm_page.h>
#include <vm/vm_pager.h>
#include <vm/vm_param.h>
#include <vm/vm_phys.h>
#include <machine/param.h>
#include <machine/pmap.h>
#include <machine/bus.h>
#include <machine/resource.h>
#if defined(__i386__) || defined(__amd64__)
#include <machine/specialreg.h>
#endif
#include <machine/sysarch.h>
#include <sys/endian.h>
#if _BYTE_ORDER == _BIG_ENDIAN
#define __BIG_ENDIAN 1
#else
#define __LITTLE_ENDIAN 1
#endif
#include <sys/mman.h>
#include <sys/rman.h>
#include <sys/memrange.h>
#if __FreeBSD_version >= 800004
#include <dev/agp/agpvar.h>
#else /* __FreeBSD_version >= 800004 */
#include <pci/agpvar.h>
#endif /* __FreeBSD_version >= 800004 */
#include <sys/agpio.h>
#include <sys/mutex.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <sys/selinfo.h>
#include <sys/bus.h>
#include "dev/drm/drm.h"
#include "dev/drm/drm_atomic.h"
#include "dev/drm/drm_internal.h"
#include "dev/drm/drm_linux_list.h"
#include <opt_drm.h>
#ifdef DRM_DEBUG
#undef DRM_DEBUG
#define DRM_DEBUG_DEFAULT_ON 1
#endif /* DRM_DEBUG */
#if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__)
#include <sys/file.h>
#include <sys/proc.h>
#include <machine/../linux/linux.h>
#include <machine/../linux/linux_proto.h>
#else
/* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't
* supported on this OS yet.
*/
#undef DRM_LINUX
#define DRM_LINUX 0
#endif
/* 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_DMA_QUEUE 0x100
#define DRM_HASH_SIZE 16 /* Size of key hash table */
#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
MALLOC_DECLARE(DRM_MEM_DMA);
MALLOC_DECLARE(DRM_MEM_SAREA);
MALLOC_DECLARE(DRM_MEM_DRIVER);
MALLOC_DECLARE(DRM_MEM_MAGIC);
MALLOC_DECLARE(DRM_MEM_IOCTLS);
MALLOC_DECLARE(DRM_MEM_MAPS);
MALLOC_DECLARE(DRM_MEM_BUFS);
MALLOC_DECLARE(DRM_MEM_SEGS);
MALLOC_DECLARE(DRM_MEM_PAGES);
MALLOC_DECLARE(DRM_MEM_FILES);
MALLOC_DECLARE(DRM_MEM_QUEUES);
MALLOC_DECLARE(DRM_MEM_CMDS);
MALLOC_DECLARE(DRM_MEM_MAPPINGS);
MALLOC_DECLARE(DRM_MEM_BUFLISTS);
MALLOC_DECLARE(DRM_MEM_AGPLISTS);
MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
MALLOC_DECLARE(DRM_MEM_SGLISTS);
MALLOC_DECLARE(DRM_MEM_DRAWABLE);
MALLOC_DECLARE(DRM_MEM_MM);
MALLOC_DECLARE(DRM_MEM_HASHTAB);
SYSCTL_DECL(_hw_drm);
#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
/* Internal types and structures */
#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
#define DRM_MIN(a,b) ((a)<(b)?(a):(b))
#define DRM_MAX(a,b) ((a)>(b)?(a):(b))
#define DRM_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 wait_queue_head_t atomic_t
#define DRM_WAKEUP(w) wakeup((void *)w)
#define DRM_WAKEUP_INT(w) wakeup(w)
#define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
#define DRM_CURPROC curthread
#define DRM_STRUCTPROC struct thread
#define DRM_SPINTYPE struct mtx
#define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF)
#define DRM_SPINUNINIT(l) mtx_destroy(l)
#define DRM_SPINLOCK(l) mtx_lock(l)
#define DRM_SPINUNLOCK(u) mtx_unlock(u)
#define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \
mtx_lock(l); \
(void)irqflags; \
} while (0)
#define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u)
#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED)
#define DRM_CURRENTPID curthread->td_proc->p_pid
#define DRM_LOCK() mtx_lock(&dev->dev_lock)
#define DRM_UNLOCK() mtx_unlock(&dev->dev_lock)
#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
#define DRM_IRQ_ARGS void *arg
typedef void irqreturn_t;
#define IRQ_HANDLED /* nothing */
#define IRQ_NONE /* nothing */
#define unlikely(x) __builtin_expect(!!(x), 0)
#define container_of(ptr, type, member) ({ \
__typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
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 PAGE_ALIGN(addr) round_page(addr)
/* DRM_SUSER returns true if the user is superuser */
#if __FreeBSD_version >= 700000
#define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
#else
#define DRM_SUSER(p) (suser(p) == 0)
#endif
#define DRM_AGP_FIND_DEVICE() agp_find_device()
#define DRM_MTRR_WC MDF_WRITECOMBINE
#define jiffies ticks
typedef vm_paddr_t dma_addr_t;
typedef u_int64_t u64;
typedef u_int32_t u32;
typedef u_int16_t u16;
typedef u_int8_t u8;
/* DRM_READMEMORYBARRIER() prevents reordering of reads.
* DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
* DRM_MEMORYBARRIER() prevents reordering of reads and writes.
*/
#define DRM_READMEMORYBARRIER() rmb()
#define DRM_WRITEMEMORYBARRIER() wmb()
#define DRM_MEMORYBARRIER() mb()
#define DRM_READ8(map, offset) \
*(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
(vm_offset_t)(offset))
#define DRM_READ16(map, offset) \
le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
(vm_offset_t)(offset)))
#define DRM_READ32(map, offset) \
le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
(vm_offset_t)(offset)))
#define DRM_WRITE8(map, offset, val) \
*(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
(vm_offset_t)(offset)) = val
#define DRM_WRITE16(map, offset, val) \
*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
(vm_offset_t)(offset)) = htole16(val)
#define DRM_WRITE32(map, offset, val) \
*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
(vm_offset_t)(offset)) = htole32(val)
#define DRM_VERIFYAREA_READ( uaddr, size ) \
(!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
#define DRM_COPY_TO_USER(user, kern, size) \
copyout(kern, user, size)
#define DRM_COPY_FROM_USER(kern, user, size) \
copyin(user, kern, size)
#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
copyin(arg2, arg1, arg3)
#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
copyout(arg2, arg1, arg3)
#define DRM_GET_USER_UNCHECKED(val, uaddr) \
((val) = fuword32(uaddr), 0)
#define cpu_to_le32(x) htole32(x)
#define le32_to_cpu(x) le32toh(x)
#define DRM_HZ hz
#define DRM_UDELAY(udelay) DELAY(udelay)
#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */
#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
(_map) = (_dev)->context_sareas[_ctx]; \
} while(0)
#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(); \
mtx_lock(&dev->irq_lock); \
if (!(condition)) \
ret = -mtx_sleep(&(queue), &dev->irq_lock, \
PCATCH, "drmwtq", (timeout)); \
mtx_unlock(&dev->irq_lock); \
DRM_LOCK(); \
}
#define DRM_ERROR(fmt, ...) \
printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
#define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
#define DRM_DEBUG(fmt, ...) do { \
if (drm_debug_flag) \
printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
__func__ , ##__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;
};
#define DRM_AUTH 0x1
#define DRM_MASTER 0x2
#define DRM_ROOT_ONLY 0x4
typedef struct drm_ioctl_desc {
unsigned long cmd;
int (*func)(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int flags;
} drm_ioctl_desc_t;
/**
* 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}
typedef struct drm_magic_entry {
drm_magic_t magic;
struct drm_file *priv;
struct drm_magic_entry *next;
} drm_magic_entry_t;
typedef struct drm_magic_head {
struct drm_magic_entry *head;
struct drm_magic_entry *tail;
} drm_magic_head_t;
typedef struct drm_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 pending; /* On hardware DMA queue */
struct drm_file *file_priv; /* Unique identifier of holding process */
int context; /* Kernel queue for this buffer */
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 stoarge */
void *dev_private; /* Per-buffer private storage */
} drm_buf_t;
typedef struct drm_freelist {
int initialized; /* Freelist in use */
atomic_t count; /* Number of free buffers */
drm_buf_t *next; /* End pointer */
int low_mark; /* Low water mark */
int high_mark; /* High water mark */
} drm_freelist_t;
typedef struct drm_dma_handle {
void *vaddr;
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;
drm_dma_handle_t **seglist;
int page_order;
drm_freelist_t freelist;
} drm_buf_entry_t;
typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
struct drm_file {
TAILQ_ENTRY(drm_file) link;
struct drm_device *dev;
int authenticated;
int master;
pid_t pid;
uid_t uid;
drm_magic_t magic;
unsigned long ioctl_count;
void *driver_priv;
};
typedef struct drm_lock_data {
struct drm_hw_lock *hw_lock; /* Hardware lock */
struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/
int lock_queue; /* Queue of blocked processes */
unsigned long lock_time; /* Time of last lock in jiffies */
} drm_lock_data_t;
/* 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 {
drm_buf_entry_t bufs[DRM_MAX_ORDER+1];
int buf_count;
drm_buf_t **buflist; /* Vector of pointers info bufs */
int seg_count;
int page_count;
unsigned long *pagelist;
unsigned long byte_count;
enum {
_DRM_DMA_USE_AGP = 0x01,
_DRM_DMA_USE_SG = 0x02
} flags;
} drm_device_dma_t;
typedef struct drm_agp_mem {
void *handle;
unsigned long bound; /* address */
int pages;
struct drm_agp_mem *prev;
struct drm_agp_mem *next;
} drm_agp_mem_t;
typedef struct drm_agp_head {
device_t agpdev;
struct agp_info info;
const char *chipset;
drm_agp_mem_t *memory;
unsigned long mode;
int enabled;
int acquired;
unsigned long base;
int mtrr;
int cant_use_aperture;
unsigned long page_mask;
} drm_agp_head_t;
typedef struct drm_sg_mem {
vm_offset_t vaddr;
vm_paddr_t *busaddr;
vm_pindex_t pages;
} drm_sg_mem_t;
#define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24)
#define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS)
typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t;
typedef struct drm_local_map {
unsigned long offset; /* Physical address (0 for SAREA) */
unsigned long size; /* Physical size (bytes) */
enum drm_map_type type; /* Type of memory mapped */
enum drm_map_flags flags; /* Flags */
void *handle; /* User-space: "Handle" to pass to mmap */
/* Kernel-space: kernel-virtual address */
int mtrr; /* Boolean: MTRR used */
/* Private data */
int rid; /* PCI resource ID for bus_space */
void *virtual; /* Kernel-space: kernel-virtual address */
struct resource *bsr;
bus_space_tag_t bst;
bus_space_handle_t bsh;
drm_dma_handle_t *dmah;
TAILQ_ENTRY(drm_local_map) link;
} drm_local_map_t;
struct drm_vblank_info {
wait_queue_head_t queue; /* vblank wait queue */
atomic_t count; /* number of VBLANK interrupts */
/* (driver must alloc the right number of counters) */
atomic_t refcount; /* number of users of vblank interrupts */
u32 last; /* protected by dev->vbl_lock, used */
/* for wraparound handling */
int enabled; /* so we don't call enable more than */
/* once per disable */
int inmodeset; /* Display driver is setting mode */
};
/* 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;
dma_addr_t member_mask;
struct drm_dma_handle *table_handle;
drm_local_map_t mapping;
int table_size;
struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
};
#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))
struct drm_driver_info {
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 *);
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)(DRM_IRQ_ARGS);
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);
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);
drm_ioctl_desc_t *ioctls;
int max_ioctl;
int buf_priv_size;
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;
};
/* Length for the array of resource pointers for drm_get_resource_*. */
#define DRM_MAX_PCI_RESOURCE 6
/**
* DRM device functions structure
*/
struct drm_device {
struct drm_driver_info *driver;
drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
u_int16_t pci_device; /* PCI device id */
u_int16_t pci_vendor; /* PCI vendor id */
char *unique; /* Unique identifier: e.g., busid */
int unique_len; /* Length of unique field */
device_t device; /* Device instance from newbus */
struct cdev *devnode; /* Device number for mknod */
int if_version; /* Highest interface version set */
int flags; /* Flags to open(2) */
/* Locks */
struct mtx vbl_lock; /* protects vblank operations */
struct mtx dma_lock; /* protects dev->dma */
struct mtx irq_lock; /* protects irq condition checks */
struct mtx dev_lock; /* protects everything else */
DRM_SPINTYPE drw_lock;
/* Usage Counters */
int open_count; /* Outstanding files open */
int buf_use; /* Buffers in use -- cannot alloc */
/* Performance counters */
unsigned long counters;
enum drm_stat_type types[15];
atomic_t counts[15];
/* Authentication */
drm_file_list_t files;
drm_magic_head_t magiclist[DRM_HASH_SIZE];
/* Linked list of mappable regions. Protected by dev_lock */
drm_map_list_t maplist;
struct unrhdr *map_unrhdr;
drm_local_map_t **context_sareas;
int max_context;
drm_lock_data_t lock; /* Information on hardware lock */
/* DMA queues (contexts) */
drm_device_dma_t *dma; /* Optional pointer for DMA support */
/* Context support */
int irq; /* Interrupt used by board */
int irq_enabled; /* True if the irq handler is enabled */
int msi_enabled; /* MSI enabled */
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;
atomic_t context_flag; /* Context swapping flag */
int last_context; /* Last current context */
int vblank_disable_allowed;
struct callout vblank_disable_timer;
u32 max_vblank_count; /* size of vblank counter register */
struct drm_vblank_info *vblank; /* per crtc vblank info */
int num_crtcs;
struct sigio *buf_sigio; /* Processes waiting for SIGIO */
/* Sysctl support */
struct drm_sysctl_info *sysctl;
drm_agp_head_t *agp;
drm_sg_mem_t *sg; /* Scatter gather memory */
atomic_t *ctx_bitmap;
void *dev_private;
unsigned int agp_buffer_token;
drm_local_map_t *agp_buffer_map;
struct unrhdr *drw_unrhdr;
/* RB tree of drawable infos */
RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head;
};
static __inline__ int drm_core_check_feature(struct drm_device *dev,
int feature)
{
return ((dev->driver->driver_features & feature) ? 1 : 0);
}
#if __OS_HAS_AGP
static inline int drm_core_has_AGP(struct drm_device *dev)
{
return drm_core_check_feature(dev, DRIVER_USE_AGP);
}
#else
#define drm_core_has_AGP(dev) (0)
#endif
extern int drm_debug_flag;
/* Device setup support (drm_drv.c) */
int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
void drm_close(void *data);
int drm_detach(device_t kdev);
d_ioctl_t drm_ioctl;
d_open_t drm_open;
d_read_t drm_read;
d_poll_t drm_poll;
d_mmap_t drm_mmap;
extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
/* 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);
/* Memory management support (drm_memory.c) */
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);
int drm_context_switch(struct drm_device *dev, int old, int new);
int drm_context_switch_complete(struct drm_device *dev, int new);
int drm_ctxbitmap_init(struct drm_device *dev);
void drm_ctxbitmap_cleanup(struct drm_device *dev);
void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
int drm_ctxbitmap_next(struct drm_device *dev);
/* 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);
/* Buffer management support (drm_bufs.c) */
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);
void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
int drm_order(unsigned long size);
int drm_addmap(struct drm_device *dev, unsigned long offset,
unsigned long size,
enum drm_map_type type, enum drm_map_flags flags,
drm_local_map_t **map_ptr);
int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request);
int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
/* DMA support (drm_dma.c) */
int drm_dma_setup(struct drm_device *dev);
void drm_dma_takedown(struct drm_device *dev);
void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
#define drm_core_reclaim_buffers drm_reclaim_buffers
/* IRQ support (drm_irq.c) */
int drm_irq_install(struct drm_device *dev);
int drm_irq_uninstall(struct drm_device *dev);
irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
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);
void drm_handle_vblank(struct drm_device *dev, int crtc);
u32 drm_vblank_count(struct drm_device *dev, int crtc);
int drm_vblank_get(struct drm_device *dev, int crtc);
void drm_vblank_put(struct drm_device *dev, int crtc);
void drm_vblank_cleanup(struct drm_device *dev);
int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
int drm_vblank_init(struct drm_device *dev, int num_crtcs);
int drm_modeset_ctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
/* AGP/PCI Express/GART support (drm_agpsupport.c) */
int drm_device_is_agp(struct drm_device *dev);
int drm_device_is_pcie(struct drm_device *dev);
drm_agp_head_t *drm_agp_init(void);
int drm_agp_acquire(struct drm_device *dev);
int drm_agp_release(struct drm_device *dev);
int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
void *drm_agp_allocate_memory(size_t pages, u32 type);
int drm_agp_free_memory(void *handle);
int drm_agp_bind_memory(void *handle, off_t start);
int drm_agp_unbind_memory(void *handle);
int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
/* Scatter Gather Support (drm_scatter.c) */
void drm_sg_cleanup(drm_sg_mem_t *entry);
int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
/* sysctl support (drm_sysctl.h) */
extern int drm_sysctl_init(struct drm_device *dev);
extern int drm_sysctl_cleanup(struct drm_device *dev);
/* ATI PCIGART support (ati_pcigart.c) */
int drm_ati_pcigart_init(struct drm_device *dev,
struct drm_ati_pcigart_info *gart_info);
int drm_ati_pcigart_cleanup(struct drm_device *dev,
struct drm_ati_pcigart_info *gart_info);
/* 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_version(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);
/* 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_noop(struct drm_device *dev, void *data,
struct drm_file *file_priv);
/* Context IOCTL support (drm_context.c) */
int drm_resctx(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_addctx(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_modctx(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_getctx(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_switchctx(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_newctx(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_rmctx(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_setsareactx(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_getsareactx(struct drm_device *dev, void *data,
struct drm_file *file_priv);
/* Drawable IOCTL support (drm_drawable.c) */
int drm_adddraw(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_rmdraw(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_update_draw(struct drm_device *dev, void *data,
struct drm_file *file_priv);
struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
int handle);
/* Drawable support (drm_drawable.c) */
void drm_drawable_free_all(struct drm_device *dev);
/* 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);
/* Buffer management support (drm_bufs.c) */
int drm_addmap_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_rmmap_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_addbufs(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_infobufs(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_markbufs(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_freebufs(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_mapbufs(struct drm_device *dev, void *data,
struct drm_file *file_priv);
/* 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);
int drm_wait_vblank(struct drm_device *dev, void *data,
struct drm_file *file_priv);
/* AGP/GART support (drm_agpsupport.c) */
int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_release_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_info_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_free_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
/* 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) */
drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
size_t align, dma_addr_t maxaddr);
void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
/* Inline replacements for drm_alloc and friends */
static __inline__ void *
drm_alloc(size_t size, struct malloc_type *area)
{
return malloc(size, area, M_NOWAIT);
}
static __inline__ void *
drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
{
return malloc(size * nmemb, area, M_NOWAIT | M_ZERO);
}
static __inline__ void *
drm_realloc(void *oldpt, size_t oldsize, size_t size,
struct malloc_type *area)
{
return reallocf(oldpt, size, area, M_NOWAIT);
}
static __inline__ void
drm_free(void *pt, size_t size, struct malloc_type *area)
{
free(pt, area);
}
/* Inline replacements for DRM_IOREMAP macros */
static __inline__ void
drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
{
map->virtual = drm_ioremap_wc(dev, map);
}
static __inline__ void
drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
{
map->virtual = drm_ioremap(dev, map);
}
static __inline__ void
drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
{
if ( map->virtual && map->size )
drm_ioremapfree(map);
}
static __inline__ struct drm_local_map *
drm_core_findmap(struct drm_device *dev, unsigned long offset)
{
drm_local_map_t *map;
DRM_SPINLOCK_ASSERT(&dev->dev_lock);
TAILQ_FOREACH(map, &dev->maplist, link) {
if (offset == (unsigned long)map->handle)
return map;
}
return NULL;
}
static __inline__ void drm_core_dropmap(struct drm_map *map)
{
}
#endif /* __KERNEL__ */
#endif /* _DRM_P_H_ */
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