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freebsd-dev/sys/dev/drm/drmP.h
Robert Watson acd3428b7d Sweep kernel replacing suser(9) calls with priv(9) calls, assigning 
specific privilege names to a broad range of privileges.  These may
require some future tweaking.

Sponsored by:           nCircle Network Security, Inc.
Obtained from:          TrustedBSD Project
Discussed on:           arch@
Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri,
                        Alex Lyashkov <umka at sevcity dot net>,
                        Skip Ford <skip dot ford at verizon dot net>,
                        Antoine Brodin <antoine dot brodin at laposte dot net>
2006-11-06 13:42:10 +00:00

1039 lines
32 KiB
C
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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__)
typedef struct drm_device drm_device_t;
typedef struct drm_file drm_file_t;
#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 <vm/vm.h>
#include <vm/pmap.h>
#include <vm/vm_extern.h>
#include <vm/vm_map.h>
#include <vm/vm_param.h>
#include <machine/param.h>
#include <machine/pmap.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <machine/sysarch.h>
#include <sys/endian.h>
#include <sys/mman.h>
#if defined(__FreeBSD__)
#include <sys/rman.h>
#include <sys/memrange.h>
#include <pci/agpvar.h>
#include <sys/agpio.h>
#if __FreeBSD_version >= 500000
#include <sys/mutex.h>
#include <dev/pci/pcivar.h>
#include <sys/selinfo.h>
#else /* __FreeBSD_version >= 500000 */
#include <pci/pcivar.h>
#include <sys/select.h>
#endif /* __FreeBSD_version < 500000 */
#elif defined(__NetBSD__)
#include <machine/mtrr.h>
#include <sys/vnode.h>
#include <sys/select.h>
#include <sys/device.h>
#include <sys/resourcevar.h>
#include <sys/lkm.h>
#include <sys/agpio.h>
#include <sys/ttycom.h>
#include <uvm/uvm.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/agpvar.h>
#elif defined(__OpenBSD__)
#include <sys/lkm.h>
#include <uvm/uvm.h>
#endif
#include <sys/bus.h>
#include "dev/drm/drm.h"
#include "dev/drm/drm_linux_list.h"
#include "dev/drm/drm_atomic.h"
#ifdef __FreeBSD__
#include <opt_drm.h>
#ifdef DRM_DEBUG
#undef DRM_DEBUG
#define DRM_DEBUG_DEFAULT_ON 1
#endif /* DRM_DEBUG */
#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
#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 */
#define DRM_MEM_DMA 0
#define DRM_MEM_SAREA 1
#define DRM_MEM_DRIVER 2
#define DRM_MEM_MAGIC 3
#define DRM_MEM_IOCTLS 4
#define DRM_MEM_MAPS 5
#define DRM_MEM_BUFS 6
#define DRM_MEM_SEGS 7
#define DRM_MEM_PAGES 8
#define DRM_MEM_FILES 9
#define DRM_MEM_QUEUES 10
#define DRM_MEM_CMDS 11
#define DRM_MEM_MAPPINGS 12
#define DRM_MEM_BUFLISTS 13
#define DRM_MEM_AGPLISTS 14
#define DRM_MEM_TOTALAGP 15
#define DRM_MEM_BOUNDAGP 16
#define DRM_MEM_CTXBITMAP 17
#define DRM_MEM_STUB 18
#define DRM_MEM_SGLISTS 19
#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)
MALLOC_DECLARE(M_DRM);
#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__) && __FreeBSD_version < 502109
#define bus_alloc_resource_any(dev, type, rid, flags) \
bus_alloc_resource(dev, type, rid, 0ul, ~0ul, 1, flags)
#endif
#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
#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_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)
#else /* __FreeBSD__ && __FreeBSD_version >= 500000 */
#define DRM_CURPROC curproc
#define DRM_STRUCTPROC struct proc
#define DRM_SPINTYPE struct simplelock
#define DRM_SPININIT(l,name)
#define DRM_SPINUNINIT(l)
#define DRM_SPINLOCK(l)
#define DRM_SPINUNLOCK(u)
#define DRM_SPINLOCK_ASSERT(l)
#define DRM_CURRENTPID curproc->p_pid
#define DRM_LOCK()
#define DRM_UNLOCK()
#define DRM_SYSCTL_HANDLER_ARGS SYSCTL_HANDLER_ARGS
#define spldrm() spltty()
#endif /* __NetBSD__ || __OpenBSD__ */
/* Currently our DRMFILE (filp) is a void * which is actually the pid
* of the current process. It should be a per-open unique pointer, but
* code for that is not yet written */
#define DRMFILE void *
#define DRM_IRQ_ARGS void *arg
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
#if defined(__FreeBSD__)
#define DRM_DEVICE \
drm_device_t *dev = kdev->si_drv1
#define DRM_IOCTL_ARGS struct cdev *kdev, u_long cmd, caddr_t data, \
int flags, DRM_STRUCTPROC *p, DRMFILE filp
#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
#else /* __FreeBSD__ */
#if defined(__NetBSD__)
#define DRM_DEVICE \
drm_device_t *dev = device_lookup(&drm_cd, minor(kdev))
#elif defined(__OpenBSD__)
#define DRM_DEVICE \
drm_device_t *dev = (device_lookup(&drm_cd, \
minor(kdev)))->dv_cfdata->cf_driver->cd_devs[minor(kdev)]
#endif /* __OpenBSD__ */
#define DRM_IOCTL_ARGS dev_t kdev, u_long cmd, caddr_t data, \
int flags, DRM_STRUCTPROC *p, DRMFILE filp
#define CDEV_MAJOR 34
#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
/* DRM_SUSER returns true if the user is superuser */
#define DRM_SUSER(p) (suser(p->p_ucred, &p->p_acflag) == 0)
#define DRM_AGP_FIND_DEVICE() agp_find_device(0)
#define DRM_MTRR_WC MTRR_TYPE_WC
#define jiffies hardclock_ticks
typedef drm_device_t *device_t;
extern struct cfdriver drm_cd;
#endif /* !__FreeBSD__ */
/* 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;
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.
*/
#if 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
#ifdef __FreeBSD__
#define DRM_READ8(map, offset) \
*(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset))
#define DRM_READ16(map, offset) \
*(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset))
#define DRM_READ32(map, offset) \
*(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset))
#define DRM_WRITE8(map, offset, val) \
*(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) = val
#define DRM_WRITE16(map, offset, val) \
*(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) = val
#define DRM_WRITE32(map, offset, val) \
*(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) = val
#define DRM_VERIFYAREA_READ( uaddr, size ) \
(!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
#else /* __FreeBSD__ */
typedef vaddr_t vm_offset_t;
#define DRM_READ8(map, offset) \
bus_space_read_1( (map)->bst, (map)->bsh, (offset))
#define DRM_READ16(map, offset) \
bus_space_read_2( (map)->bst, (map)->bsh, (offset))
#define DRM_READ32(map, offset) \
bus_space_read_4( (map)->bst, (map)->bsh, (offset))
#define DRM_WRITE8(map, offset, val) \
bus_space_write_1((map)->bst, (map)->bsh, (offset), (val))
#define DRM_WRITE16(map, offset, val) \
bus_space_write_2((map)->bst, (map)->bsh, (offset), (val))
#define DRM_WRITE32(map, offset, val) \
bus_space_write_4((map)->bst, (map)->bsh, (offset), (val))
#define DRM_VERIFYAREA_READ( uaddr, size ) \
(!uvm_useracc((caddr_t)uaddr, size, VM_PROT_READ))
#endif /* !__FreeBSD__ */
#define DRM_COPY_TO_USER_IOCTL(user, kern, size) \
if ( IOCPARM_LEN(cmd) != size) \
return EINVAL; \
*user = kern;
#define DRM_COPY_FROM_USER_IOCTL(kern, user, size) \
if ( IOCPARM_LEN(cmd) != size) \
return EINVAL; \
kern = *user;
#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 __FreeBSD_version > 500000
#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_ERR(v) v
#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 DRM_GET_PRIV_WITH_RETURN(_priv, _filp) \
do { \
if (_filp != (DRMFILE)(intptr_t)DRM_CURRENTPID) { \
DRM_ERROR("filp doesn't match curproc\n"); \
return EINVAL; \
} \
_priv = drm_find_file_by_proc(dev, DRM_CURPROC); \
if (_priv == NULL) { \
DRM_ERROR("can't find authenticator\n"); \
return EINVAL; \
} \
} while (0)
#define LOCK_TEST_WITH_RETURN(dev, filp) \
do { \
if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
dev->lock.filp != filp) { \
DRM_ERROR("%s called without lock held\n", \
__FUNCTION__); \
return EINVAL; \
} \
} while (0)
#define DRM_GETSAREA() \
do { \
drm_local_map_t *map; \
DRM_SPINLOCK_ASSERT(&dev->dev_lock); \
TAILQ_FOREACH(map, &dev->maplist, link) { \
if (map->type == _DRM_SHM && \
map->flags & _DRM_CONTAINS_LOCK) { \
dev_priv->sarea = map; \
break; \
} \
} \
} while (0)
#if defined(__FreeBSD__) && __FreeBSD_version > 500000
#define DRM_WAIT_ON( ret, queue, timeout, condition ) \
for ( ret = 0 ; !ret && !(condition) ; ) { \
DRM_UNLOCK(); \
mtx_lock(&dev->irq_lock); \
if (!(condition)) \
ret = msleep(&(queue), &dev->irq_lock, \
PZERO | PCATCH, "drmwtq", (timeout)); \
mtx_unlock(&dev->irq_lock); \
DRM_LOCK(); \
}
#else
#define DRM_WAIT_ON( ret, queue, timeout, condition ) \
for ( ret = 0 ; !ret && !(condition) ; ) { \
int s = spldrm(); \
if (!(condition)) \
ret = tsleep( &(queue), PZERO | PCATCH, \
"drmwtq", (timeout) ); \
splx(s); \
}
#endif
#define DRM_ERROR(fmt, arg...) \
printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
DRM_CURRENTPID, __func__ , ## arg)
#define DRM_INFO(fmt, arg...) printf("info: [" DRM_NAME "] " fmt , ## arg)
#define DRM_DEBUG(fmt, arg...) do { \
if (drm_debug_flag) \
printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
__func__ , ## arg); \
} while (0)
typedef struct drm_pci_id_list
{
int vendor;
int device;
long driver_private;
char *name;
} drm_pci_id_list_t;
#define DRM_AUTH 0x1
#define DRM_MASTER 0x2
#define DRM_ROOT_ONLY 0x4
typedef struct drm_ioctl_desc {
int (*func)(DRM_IOCTL_ARGS);
int flags;
} drm_ioctl_desc_t;
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 */
DRMFILE filp; /* 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;
#if defined(__FreeBSD__)
bus_dma_tag_t tag;
bus_dmamap_t map;
#elif defined(__NetBSD__)
bus_dma_segment_t seg;
#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;
int authenticated;
int master;
int minor;
pid_t pid;
uid_t uid;
int refs;
drm_magic_t magic;
unsigned long ioctl_count;
void *driver_priv;
};
typedef struct drm_lock_data {
drm_hw_lock_t *hw_lock; /* Hardware lock */
DRMFILE filp; /* 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 drm_device_t, 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;
drm_dma_handle_t *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;
typedef struct drm_local_map {
unsigned long offset; /* Physical address (0 for SAREA)*/
unsigned long size; /* Physical size (bytes) */
drm_map_type_t type; /* Type of memory mapped */
drm_map_flags_t 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 */
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;
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;
/* location of GART table */
#define DRM_ATI_GART_MAIN 1
#define DRM_ATI_GART_FB 2
typedef struct ati_pcigart_info {
int gart_table_location;
int is_pcie;
void *addr;
dma_addr_t bus_addr;
drm_local_map_t mapping;
} drm_ati_pcigart_info;
struct drm_driver_info {
int (*load)(struct drm_device *, unsigned long flags);
int (*firstopen)(struct drm_device *);
int (*open)(struct drm_device *, drm_file_t *);
void (*preclose)(struct drm_device *, void *filp);
void (*postclose)(struct drm_device *, drm_file_t *);
void (*lastclose)(struct drm_device *);
int (*unload)(struct drm_device *);
void (*reclaim_buffers_locked)(struct drm_device *, void *filp);
int (*dma_ioctl)(DRM_IOCTL_ARGS);
void (*dma_ready)(struct drm_device *);
int (*dma_quiescent)(struct drm_device *);
int (*dma_flush_block_and_flush)(struct drm_device *, int context,
drm_lock_flags_t flags);
int (*dma_flush_unblock)(struct drm_device *, int context,
drm_lock_flags_t 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)(drm_device_t *dev);
void (*irq_postinstall)(drm_device_t *dev);
void (*irq_uninstall)(drm_device_t *dev);
void (*irq_handler)(DRM_IRQ_ARGS);
int (*vblank_wait)(drm_device_t *dev, unsigned int *sequence);
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. */
unsigned use_agp :1;
unsigned require_agp :1;
unsigned use_sg :1;
unsigned use_dma :1;
unsigned use_pci_dma :1;
unsigned use_dma_queue :1;
unsigned use_irq :1;
unsigned use_vbl_irq :1;
unsigned use_mtrr :1;
};
/* Length for the array of resource pointers for drm_get_resource_*. */
#define DRM_MAX_PCI_RESOURCE 3
/**
* DRM device functions structure
*/
struct drm_device {
#if defined(__NetBSD__) || defined(__OpenBSD__)
struct device device; /* softc is an extension of struct device */
#endif
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 */
#ifdef __FreeBSD__
device_t device; /* Device instance from newbus */
#endif
struct cdev *devnode; /* Device number for mknod */
int if_version; /* Highest interface version set */
int flags; /* Flags to open(2) */
/* Locks */
#if defined(__FreeBSD__) && __FreeBSD_version > 500000
struct mtx dma_lock; /* protects dev->dma */
struct mtx irq_lock; /* protects irq condition checks */
struct mtx dev_lock; /* protects everything else */
#endif
/* Usage Counters */
int open_count; /* Outstanding files open */
int buf_use; /* Buffers in use -- cannot alloc */
/* Performance counters */
unsigned long counters;
drm_stat_type_t 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 */
#ifdef __FreeBSD__
int irqrid; /* Interrupt used by board */
struct resource *irqr; /* Resource for interrupt used by board */
#elif defined(__NetBSD__) || defined(__OpenBSD__)
struct pci_attach_args pa;
#endif
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 vbl_queue; /* vbl wait channel */
atomic_t vbl_received;
#ifdef __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;
};
extern int drm_debug_flag;
/* Device setup support (drm_drv.c) */
#ifdef __FreeBSD__
int drm_probe(device_t nbdev, drm_pci_id_list_t *idlist);
int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist);
int drm_detach(device_t nbdev);
d_ioctl_t drm_ioctl;
d_open_t drm_open;
d_close_t drm_close;
d_read_t drm_read;
d_poll_t drm_poll;
d_mmap_t drm_mmap;
#elif defined(__NetBSD__) || defined(__OpenBSD__)
int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist);
int drm_attach(struct pci_attach_args *pa, dev_t kdev, drm_pci_id_list_t *idlist);
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
/* File operations helpers (drm_fops.c) */
#ifdef __FreeBSD__
extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
DRM_STRUCTPROC *p, drm_device_t *dev);
extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev,
DRM_STRUCTPROC *p);
#elif defined(__NetBSD__) || defined(__OpenBSD__)
extern int drm_open_helper(dev_t kdev, int flags, int fmt,
DRM_STRUCTPROC *p, drm_device_t *dev);
extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev,
DRM_STRUCTPROC *p);
#endif /* __NetBSD__ || __OpenBSD__ */
/* Memory management support (drm_memory.c) */
void drm_mem_init(void);
void drm_mem_uninit(void);
void *drm_alloc(size_t size, int area);
void *drm_calloc(size_t nmemb, size_t size, int area);
void *drm_realloc(void *oldpt, size_t oldsize, size_t size,
int area);
void drm_free(void *pt, size_t size, int area);
void *drm_ioremap(drm_device_t *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(drm_device_t *dev, int old, int new);
int drm_context_switch_complete(drm_device_t *dev, int new);
int drm_ctxbitmap_init(drm_device_t *dev);
void drm_ctxbitmap_cleanup(drm_device_t *dev);
void drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle);
int drm_ctxbitmap_next(drm_device_t *dev);
/* Locking IOCTL support (drm_lock.c) */
int drm_lock_take(__volatile__ unsigned int *lock,
unsigned int context);
int drm_lock_transfer(drm_device_t *dev,
__volatile__ unsigned int *lock,
unsigned int context);
int drm_lock_free(drm_device_t *dev,
__volatile__ unsigned int *lock,
unsigned int context);
/* Buffer management support (drm_bufs.c) */
unsigned long drm_get_resource_start(drm_device_t *dev, unsigned int resource);
unsigned long drm_get_resource_len(drm_device_t *dev, unsigned int resource);
void drm_rmmap(drm_device_t *dev, drm_local_map_t *map);
int drm_order(unsigned long size);
int drm_addmap(drm_device_t * dev, unsigned long offset, unsigned long size,
drm_map_type_t type, drm_map_flags_t flags,
drm_local_map_t **map_ptr);
int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request);
int drm_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request);
int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request);
/* DMA support (drm_dma.c) */
int drm_dma_setup(drm_device_t *dev);
void drm_dma_takedown(drm_device_t *dev);
void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf);
void drm_reclaim_buffers(drm_device_t *dev, DRMFILE filp);
#define drm_core_reclaim_buffers drm_reclaim_buffers
/* IRQ support (drm_irq.c) */
int drm_irq_install(drm_device_t *dev);
int drm_irq_uninstall(drm_device_t *dev);
irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
void drm_driver_irq_preinstall(drm_device_t *dev);
void drm_driver_irq_postinstall(drm_device_t *dev);
void drm_driver_irq_uninstall(drm_device_t *dev);
int drm_vblank_wait(drm_device_t *dev, unsigned int *vbl_seq);
void drm_vbl_send_signals(drm_device_t *dev);
/* AGP/PCI Express/GART support (drm_agpsupport.c) */
int drm_device_is_agp(drm_device_t *dev);
int drm_device_is_pcie(drm_device_t *dev);
drm_agp_head_t *drm_agp_init(void);
int drm_agp_acquire(drm_device_t *dev);
int drm_agp_release(drm_device_t *dev);
int drm_agp_info(drm_device_t * dev, drm_agp_info_t *info);
int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t 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(drm_device_t *dev, drm_agp_buffer_t *request);
int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request);
int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request);
int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request);
/* Scatter Gather Support (drm_scatter.c) */
void drm_sg_cleanup(drm_sg_mem_t *entry);
#ifdef __FreeBSD__
/* sysctl support (drm_sysctl.h) */
extern int drm_sysctl_init(drm_device_t *dev);
extern int drm_sysctl_cleanup(drm_device_t *dev);
#endif /* __FreeBSD__ */
/* ATI PCIGART support (ati_pcigart.c) */
int drm_ati_pcigart_init(drm_device_t *dev,
drm_ati_pcigart_info *gart_info);
int drm_ati_pcigart_cleanup(drm_device_t *dev,
drm_ati_pcigart_info *gart_info);
/* Locking IOCTL support (drm_drv.c) */
int drm_lock(DRM_IOCTL_ARGS);
int drm_unlock(DRM_IOCTL_ARGS);
int drm_version(DRM_IOCTL_ARGS);
int drm_setversion(DRM_IOCTL_ARGS);
/* Misc. IOCTL support (drm_ioctl.c) */
int drm_irq_by_busid(DRM_IOCTL_ARGS);
int drm_getunique(DRM_IOCTL_ARGS);
int drm_setunique(DRM_IOCTL_ARGS);
int drm_getmap(DRM_IOCTL_ARGS);
int drm_getclient(DRM_IOCTL_ARGS);
int drm_getstats(DRM_IOCTL_ARGS);
int drm_noop(DRM_IOCTL_ARGS);
/* Context IOCTL support (drm_context.c) */
int drm_resctx(DRM_IOCTL_ARGS);
int drm_addctx(DRM_IOCTL_ARGS);
int drm_modctx(DRM_IOCTL_ARGS);
int drm_getctx(DRM_IOCTL_ARGS);
int drm_switchctx(DRM_IOCTL_ARGS);
int drm_newctx(DRM_IOCTL_ARGS);
int drm_rmctx(DRM_IOCTL_ARGS);
int drm_setsareactx(DRM_IOCTL_ARGS);
int drm_getsareactx(DRM_IOCTL_ARGS);
/* Drawable IOCTL support (drm_drawable.c) */
int drm_adddraw(DRM_IOCTL_ARGS);
int drm_rmdraw(DRM_IOCTL_ARGS);
/* Authentication IOCTL support (drm_auth.c) */
int drm_getmagic(DRM_IOCTL_ARGS);
int drm_authmagic(DRM_IOCTL_ARGS);
/* Buffer management support (drm_bufs.c) */
int drm_addmap_ioctl(DRM_IOCTL_ARGS);
int drm_rmmap_ioctl(DRM_IOCTL_ARGS);
int drm_addbufs_ioctl(DRM_IOCTL_ARGS);
int drm_infobufs(DRM_IOCTL_ARGS);
int drm_markbufs(DRM_IOCTL_ARGS);
int drm_freebufs(DRM_IOCTL_ARGS);
int drm_mapbufs(DRM_IOCTL_ARGS);
/* DMA support (drm_dma.c) */
int drm_dma(DRM_IOCTL_ARGS);
/* IRQ support (drm_irq.c) */
int drm_control(DRM_IOCTL_ARGS);
int drm_wait_vblank(DRM_IOCTL_ARGS);
/* AGP/GART support (drm_agpsupport.c) */
int drm_agp_acquire_ioctl(DRM_IOCTL_ARGS);
int drm_agp_release_ioctl(DRM_IOCTL_ARGS);
int drm_agp_enable_ioctl(DRM_IOCTL_ARGS);
int drm_agp_info_ioctl(DRM_IOCTL_ARGS);
int drm_agp_alloc_ioctl(DRM_IOCTL_ARGS);
int drm_agp_free_ioctl(DRM_IOCTL_ARGS);
int drm_agp_unbind_ioctl(DRM_IOCTL_ARGS);
int drm_agp_bind_ioctl(DRM_IOCTL_ARGS);
/* Scatter Gather Support (drm_scatter.c) */
int drm_sg_alloc(DRM_IOCTL_ARGS);
int drm_sg_free(DRM_IOCTL_ARGS);
/* consistent PCI memory functions (drm_pci.c) */
drm_dma_handle_t *drm_pci_alloc(drm_device_t *dev, size_t size, size_t align,
dma_addr_t maxaddr);
void drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah);
/* Inline replacements for DRM_IOREMAP macros */
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_ */
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