/* 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>
*
*/
#ifndef _DRM_P_H_
#define _DRM_P_H_
#if defined(_KERNEL) || defined(__KERNEL__)
struct drm_device;
struct drm_file;
#if defined(__NetBSD__) && defined(_KERNEL_OPT)
#include "opt_drm.h"
#endif
#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/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/sysctl.h>
#include <sys/bus.h>
#include <sys/signalvar.h>
#include <sys/poll.h>
#include <sys/tree.h>
#ifdef __FreeBSD__
#include <vm/vm.h>
#include <vm/pmap.h>
#include <vm/vm_extern.h>
#include <vm/vm_map.h>
#include <vm/vm_param.h>
#include <machine/resource.h>
#include <machine/param.h>
#endif
#include <machine/pmap.h>
#include <sys/bus.h>
#if defined(__i386__) || defined(__x86_64__)
#include <machine/specialreg.h>
#include <machine/sysarch.h>
#endif
#include <sys/endian.h>
#include <sys/mman.h>
#if defined( __FreeBSD__)
#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>
#elif defined(__NetBSD__)
#if defined(__i386__) || defined(__x86_64__)
#include <machine/mtrr.h>
#endif
#include <sys/vnode.h>
#include <sys/select.h>
#include <sys/device.h>
#include <sys/resourcevar.h>
#include <sys/agpio.h>
#include <sys/ttycom.h>
#include <sys/mman.h>
#include <sys/kauth.h>
#include <sys/types.h>
#include <sys/file.h>
#include <sys/atomic.h>
#include <sys/workqueue.h>
#include <uvm/uvm.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/agpvar.h>
#endif
#include "drm.h"
#include "drm_linux_list.h"
#include "drm_atomic.h"
#include "drm_internal.h"
#ifdef __FreeBSD__
#include <opt_drm.h>
#endif
#ifdef DRM_DEBUG
#undef DRM_DEBUG
#define DRM_DEBUG_DEFAULT_ON 1
#endif /* DRM_DEBUG */
#ifdef __FreeBSD__
#define DRM_KASSERT(x,y) KASSERT(x,y)
#else
#define DRM_KASSERT(x,y) KASSERT(x)
#define device_get_softc(x) device_private(x)
#define callout_deactivate(x) callout_stop(x)
#define callout_drain(x) callout_stop(x)
#endif
#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);
#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)
#if defined(__FreeBSD__)
#define DRM_CDEV struct cdev *
#define DRM_CURPROC curthread
#define DRM_STRUCTPROC struct thread
#define DRM_STRUCTCDEVPROC struct thread
#define DRM_CDEVPROC_REAL(p) (p)
#define DRM_IOCTL_DATA caddr_t
#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)
#elif defined(__NetBSD__)
#define DRM_CDEV dev_t
#define DRM_CURPROC curproc
#define DRM_STRUCTPROC struct proc
#define DRM_STRUCTCDEVPROC struct lwp
#define DRM_CDEVPROC_REAL(l) (l)->l_proc
#define DRM_IOCTL_DATA void *
#define DRM_SPINTYPE kmutex_t
#define DRM_SPININIT(l,name) mutex_init(l, MUTEX_DEFAULT, /*IPL_NONE*/ IPL_VM)
#define DRM_SPINUNINIT(l) mutex_destroy(l)
#define DRM_SPINLOCK(l) mutex_enter(l)
#define DRM_SPINUNLOCK(u) mutex_exit(u)
#define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \
mutex_enter(l); \
(void)irqflags; \
} while (0)
#define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mutex_exit(u)
#define DRM_SPINLOCK_ASSERT(l) mutex_owned(l)
#define DRM_CURRENTPID curproc->p_pid
#define DRM_LOCK() DRM_SPINLOCK(&dev->dev_lock)
#define DRM_UNLOCK() DRM_SPINUNLOCK(&dev->dev_lock)
#define DRM_SYSCTL_HANDLER_ARGS (SYSCTLFN_ARGS)
#define vslock(addr, len) uvm_vslock(curproc->p_vmspace, addr, len, VM_PROT_READ | VM_PROT_WRITE)
#define vsunlock(addr, len) uvm_vsunlock(curproc->p_vmspace, addr, len)
#endif
#define DRM_IRQ_ARGS void *arg
#if defined(__FreeBSD__)
typedef void irqreturn_t;
#define IRQ_HANDLED /* nothing */
#define IRQ_NONE /* nothing */
#elif defined(__NetBSD__)
typedef int irqreturn_t;
#define IRQ_HANDLED 1
#define IRQ_NONE 0
#endif
enum {
DRM_IS_NOT_AGP,
DRM_IS_AGP,
DRM_MIGHT_BE_AGP
};
#define DRM_AGP_MEM struct agp_memory_info
#if defined(__FreeBSD__)
#define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
#elif defined(__NetBSD__)
#define drm_get_device_from_kdev(_kdev) ((minor(_kdev) < DRM_MAXUNITS) ? \
drm_units[minor(_kdev)] : NULL)
#endif
#if defined(__FreeBSD__)
#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
#elif defined(__NetBSD__)
#define PAGE_ALIGN(addr) round_page(addr)
#define DRM_SUSER(p) (kauth_cred_getsvuid((p)->p_cred) == 0)
#define DRM_AGP_FIND_DEVICE() agp_find_device(0)
#ifdef MTRR_TYPE_WC
#define DRM_MTRR_WC MTRR_TYPE_WC
#else
#define DRM_MTRR_WC 0
#endif
#define jiffies hardclock_ticks
#define DRM_MAXUNITS 128
extern struct drm_device *drm_units[];
#endif
/* Capabilities taken from src/sys/dev/pci/pcireg.h. */
#ifndef PCIY_AGP
#define PCIY_AGP 0x02
#endif
#ifndef PCIY_EXPRESS
#define PCIY_EXPRESS 0x10
#endif
typedef unsigned long dma_addr_t;
#if defined(__FreeBSD__)
typedef u_int64_t u64;
typedef u_int32_t u32;
typedef u_int16_t u16;
typedef u_int8_t u8;
#else
typedef uint64_t u64;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t u8;
#endif
/* DRM_READMEMORYBARRIER() prevents reordering of reads.
* DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
* DRM_MEMORYBARRIER() prevents reordering of reads and writes.
*/
#if defined(__NetBSD__)
#define DRM_READMEMORYBARRIER() membar_consumer()
#define DRM_WRITEMEMORYBARRIER() membar_producer()
#define DRM_MEMORYBARRIER() membar_sync()
#elif defined(__i386__)
#define DRM_READMEMORYBARRIER() __asm __volatile( \
"lock; addl $0,0(%%esp)" : : : "memory");
#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory");
#define DRM_MEMORYBARRIER() __asm __volatile( \
"lock; addl $0,0(%%esp)" : : : "memory");
#elif defined(__alpha__)
#define DRM_READMEMORYBARRIER() alpha_mb();
#define DRM_WRITEMEMORYBARRIER() alpha_wmb();
#define DRM_MEMORYBARRIER() alpha_mb();
#elif defined(__amd64__)
#define DRM_READMEMORYBARRIER() __asm __volatile( \
"lock; addl $0,0(%%rsp)" : : : "memory");
#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory");
#define DRM_MEMORYBARRIER() __asm __volatile( \
"lock; addl $0,0(%%rsp)" : : : "memory");
#endif
#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)
#if defined(__NetBSD__)
#define DRM_GET_USER_UNCHECKED(val, uaddr) \
(ufetch_32((uint32_t *)(uaddr), &(val)), 0)
#elif defined(__FreeBSD__)
#define DRM_GET_USER_UNCHECKED(val, uaddr) \
((val) = fuword32(uaddr), 0)
#else
#define DRM_GET_USER_UNCHECKED(val, uaddr) \
((val) = fuword(uaddr), 0)
#endif
#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 */
#if defined(__FreeBSD__)
#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(); \
}
#elif defined(__NetBSD__)
/* Returns -errno to shared code */
#define DRM_WAIT_ON( ret, queue, timeout, condition ) \
for ( ret = 0 ; !ret && !(condition) ; ) { \
DRM_UNLOCK(); \
mutex_enter(&dev->irq_lock); \
if (!(condition)) \
ret = -mtsleep(&(queue), PCATCH, \
"drmwtq", (timeout), &dev->irq_lock); \
mutex_exit(&dev->irq_lock); \
DRM_LOCK(); \
}
#endif
#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;
#if defined(__NetBSD__)
const char *name;
#else
char *name;
#endif
} 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;
#if defined(__NetBSD__)
size_t size;
size_t nsegs;
bus_dma_segment_t segs[1];
#endif
} 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;
int minor;
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 {
unsigned long handle;
void *virtual;
int pages;
dma_addr_t *busaddr;
struct drm_dma_handle *sg_dmah; /* Handle for sg_pages */
struct drm_dma_handle *dmah; /* Handle to PCI memory */
/* for ATI PCIGART table */
} drm_sg_mem_t;
typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t;
#if defined(__NetBSD__)
typedef struct {
int mapped;
int maptype;
bus_addr_t base;
bus_size_t size;
bus_space_handle_t bsh;
int flags;
void * vaddr;
} pci_map_data_t;
/* XXX */
#define readl(va) (*(volatile u_int32_t *) (va))
#endif
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 */
#if defined(__FreeBSD__)
struct resource *bsr;
#endif
bus_space_tag_t bst;
bus_space_handle_t bsh;
drm_dma_handle_t *dmah;
#if defined(__NetBSD__)
pci_map_data_t *fullmap;
bus_size_t mapsize;
#endif
TAILQ_ENTRY(drm_local_map) link;
} drm_local_map_t;
TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig);
typedef struct drm_vbl_sig {
TAILQ_ENTRY(drm_vbl_sig) link;
unsigned int sequence;
int signo;
int pid;
} drm_vbl_sig_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) */
struct drm_vbl_sig_list sigs; /* signal list to send on VBLANK */
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;
};
#ifndef DMA_BIT_MASK
#define DMA_BIT_MASK(n) ((dma_addr_t)(((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);
irqreturn_t (*irq_handler)(DRM_IRQ_ARGS);
u32 (*get_vblank_counter)(struct drm_device *dev, unsigned int crtc);
int (*enable_vblank)(struct drm_device *dev, unsigned int crtc);
void (*disable_vblank)(struct drm_device *dev, unsigned 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 */
#if defined(__FreeBSD__)
struct cdev *devnode; /* Device number for mknod */
#endif
int if_version; /* Highest interface version set */
int flags; /* Flags to open(2) */
/* Locks */
DRM_SPINTYPE vbl_lock; /* protects vblank operations */
DRM_SPINTYPE dma_lock; /* protects dev->dma */
DRM_SPINTYPE irq_lock; /* protects irq condition checks */
DRM_SPINTYPE 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;
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 */
#if defined(__FreeBSD__)
int irqrid; /* Interrupt used by board */
struct resource *irqr; /* Resource for interrupt used by board */
/* Storage of resource pointers for drm_get_resource_* */
struct resource *pcir[DRM_MAX_PCI_RESOURCE];
int pcirid[DRM_MAX_PCI_RESOURCE];
#elif defined(__NetBSD__)
struct pci_attach_args pa;
pci_map_data_t pci_map_data[DRM_MAX_PCI_RESOURCE];
pci_map_data_t agp_map_data[DRM_MAX_PCI_RESOURCE];
dev_t kdev;
#endif
void *irqh; /* Handle from bus_setup_intr */
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;
atomic_t vbl_signal_pending; /* number of signals pending on all crtcs */
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;
#if defined(__FreeBSD__)
struct sigio *buf_sigio; /* Processes waiting for SIGIO */
#elif defined(__NetBSD__)
pid_t buf_pgid;
#endif
/* 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;
#if defined(__FreeBSD__)
struct unrhdr *drw_unrhdr;
#elif defined(__NetBSD__)
int drw_no;
#endif
/* 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
#if defined(__FreeBSD__)
#define DRM_READ8(map, offset) \
*(volatile u_int8_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset))
#define DRM_READ16(map, offset) \
*(volatile u_int16_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset))
#define DRM_READ32(map, offset) \
*(volatile u_int32_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset))
#define DRM_WRITE8(map, offset, val) \
*(volatile u_int8_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)) = val
#define DRM_WRITE16(map, offset, val) \
*(volatile u_int16_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)) = val
#define DRM_WRITE32(map, offset, val) \
*(volatile u_int32_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)) = val
#define DRM_VERIFYAREA_READ( uaddr, size ) \
(!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
#elif defined(__NetBSD__)
typedef vaddr_t vm_offset_t;
#define DRM_IS_BUS_SPACE(map) ((map)->type == _DRM_REGISTERS || \
(map)->type == _DRM_CONSISTENT)
static __inline__ u_int8_t
DRM_READ8(drm_local_map_t *map, bus_size_t offset)
{
if (DRM_IS_BUS_SPACE(map))
return bus_space_read_1(map->bst, map->bsh, offset);
else
return *(volatile u_int8_t *)((vaddr_t)map->handle + offset);
}
static __inline__ u_int16_t
DRM_READ16(drm_local_map_t *map, bus_size_t offset)
{
if (DRM_IS_BUS_SPACE(map))
return bus_space_read_2(map->bst, map->bsh, offset);
else
return *(volatile u_int16_t *)((vaddr_t)map->handle + offset);
}
static __inline__ u_int32_t
DRM_READ32(drm_local_map_t *map, bus_size_t offset)
{
if (DRM_IS_BUS_SPACE(map))
return bus_space_read_4(map->bst, map->bsh, offset);
else
return *(volatile u_int32_t *)((vaddr_t)map->handle + offset);
}
static __inline__ void
DRM_WRITE8(drm_local_map_t *map, bus_size_t offset, u_int8_t val)
{
if (DRM_IS_BUS_SPACE(map))
bus_space_write_1(map->bst, map->bsh, offset, val);
else
*(volatile u_int8_t *)((vaddr_t)map->handle + offset) = val;
}
static __inline__ void
DRM_WRITE16(drm_local_map_t *map, bus_size_t offset, u_int16_t val)
{
if (DRM_IS_BUS_SPACE(map))
bus_space_write_2(map->bst, map->bsh, offset, val);
else
*(volatile u_int16_t *)((vaddr_t)map->handle + offset) = val;
}
static __inline__ void
DRM_WRITE32(drm_local_map_t *map, bus_size_t offset, u_int32_t val)
{
if (DRM_IS_BUS_SPACE(map))
bus_space_write_4(map->bst, map->bsh, offset, val);
else
*(volatile u_int32_t *)((vaddr_t)map->handle + offset) = val;
}
#define DRM_VERIFYAREA_READ( uaddr, size ) \
(!uvm_map_checkprot(&(curproc->p_vmspace->vm_map), \
(vaddr_t)uaddr, (vaddr_t)uaddr+size, UVM_PROT_READ))
#endif
extern int drm_debug_flag;
/* Device setup support (drm_drv.c) */
#if defined(__FreeBSD__)
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;
#elif defined(__NetBSD__)
int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist);
void drm_attach(device_t kdev, struct pci_attach_args *pa, drm_pci_id_list_t *idlist);
int drm_detach(device_t self, int flags);
dev_type_ioctl(drm_ioctl);
dev_type_open(drm_open);
dev_type_close(drm_close);
dev_type_read(drm_read);
dev_type_poll(drm_poll);
dev_type_mmap(drm_mmap);
#endif
extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
int drm_close_pid(struct drm_device *dev, struct drm_file *priv, pid_t pid);
/* File operations helpers (drm_fops.c) */
#if defined(__FreeBSD__)
extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
DRM_STRUCTPROC *p,
struct drm_device *dev);
#elif defined(__NetBSD__)
extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev,
struct proc *p);
extern int drm_open_helper(dev_t kdev, int flags, int fmt,
struct proc *p, struct drm_device *dev);
#endif
/* 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, unsigned int crtc);
u32 drm_vblank_count(struct drm_device *dev, unsigned int crtc);
int drm_vblank_get(struct drm_device *dev, unsigned int crtc);
void drm_vblank_put(struct drm_device *dev, unsigned 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);
void drm_vbl_send_signals(struct drm_device *dev, unsigned int crtc);
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(struct drm_device *dev);
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)
{
#if defined(__FreeBSD__)
return reallocf(oldpt, size, area, M_NOWAIT);
#elif defined(__NetBSD__)
void *pt;
pt = malloc(size, area, M_NOWAIT);
if (pt == NULL)
return NULL;
if (oldpt && oldsize) {
memcpy(pt, oldpt, oldsize);
free(oldpt, area);
}
return pt;
#endif
}
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->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)
{
drm_local_map_t *map;
DRM_SPINLOCK_ASSERT(&dev->dev_lock);
TAILQ_FOREACH(map, &dev->maplist, link) {
if (map->offset == offset)
return map;
}
return NULL;
}
static __inline__ void drm_core_dropmap(struct drm_map *map)
{
}
#endif /* __KERNEL__ */
#endif /* _DRM_P_H_ */