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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>
* $FreeBSD: src/sys/dev/drm/drmP.h,v 1.4 2003/04/25 01:18:46 anholt Exp $
*/
#ifndef _DRM_P_H_
#define _DRM_P_H_
#if defined(_KERNEL) || defined(__KERNEL__)
/* DRM template customization defaults
*/
#ifndef __HAVE_AGP
#define __HAVE_AGP 0
#endif
#ifndef __HAVE_MTRR
#define __HAVE_MTRR 0
#endif
#ifndef __HAVE_CTX_BITMAP
#define __HAVE_CTX_BITMAP 0
#endif
#ifndef __HAVE_DMA
#define __HAVE_DMA 0
#endif
#ifndef __HAVE_DMA_IRQ
#define __HAVE_DMA_IRQ 0
#endif
#define DRM_DEBUG_CODE 0 /* Include debugging code (if > 1, then
also include looping detection. */
typedef struct drm_device drm_device_t;
typedef struct drm_file drm_file_t;
/* There's undoubtably more of this file to go into these OS dependent ones. */
#ifdef __FreeBSD__
#include "drm_os_freebsd.h"
#elif defined __NetBSD__
#include "drm_os_netbsd.h"
#endif
#include "drm.h"
/* Begin the DRM... */
#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_FLAG_DEBUG 0x01
#define DRM_MEM_DMA 0
#define DRM_MEM_SAREA 1
#define DRM_MEM_DRIVER 2
#define DRM_MEM_MAGIC 3
#define DRM_MEM_IOCTLS 4
#define DRM_MEM_MAPS 5
#define DRM_MEM_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)
/* Mapping helper macros */
#define DRM_IOREMAP(map) \
(map)->handle = DRM(ioremap)( dev, map )
#define DRM_IOREMAP_NOCACHE(map) \
(map)->handle = DRM(ioremap_nocache)( dev, map )
#define DRM_IOREMAPFREE(map) \
do { \
if ( (map)->handle && (map)->size ) \
DRM(ioremapfree)( map ); \
} while (0)
/* 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_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
#define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
(_map) = (_dev)->context_sareas[_ctx]; \
} while(0)
typedef struct drm_ioctl_desc {
int (*func)(DRM_IOCTL_ARGS);
int auth_needed;
int root_only;
} 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;
/* bufs is one longer than it has to be */
typedef struct drm_waitlist {
int count; /* Number of possible buffers */
drm_buf_t **bufs; /* List of pointers to buffers */
drm_buf_t **rp; /* Read pointer */
drm_buf_t **wp; /* Write pointer */
drm_buf_t **end; /* End pointer */
DRM_SPINTYPE read_lock;
DRM_SPINTYPE write_lock;
} drm_waitlist_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_SPINTYPE lock;
} drm_freelist_t;
typedef struct drm_buf_entry {
int buf_size;
int buf_count;
drm_buf_t *buflist;
int seg_count;
int page_order;
unsigned long *seglist;
drm_freelist_t freelist;
} drm_buf_entry_t;
typedef struct drm_hw_lock {
__volatile__ unsigned int lock;
char padding[60]; /* Pad to cache line */
} drm_hw_lock_t;
typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
struct drm_file {
TAILQ_ENTRY(drm_file) link;
int authenticated;
int minor;
pid_t pid;
uid_t uid;
int refs;
drm_magic_t magic;
unsigned long ioctl_count;
struct drm_device *devXX;
};
typedef struct drm_lock_data {
drm_hw_lock_t *hw_lock; /* Hardware lock */
DRMFILE filp; /* Unique identifier of holding process (NULL is kernel)*/
wait_queue_head_t lock_queue; /* Queue of blocked processes */
unsigned long lock_time; /* Time of last lock in jiffies */
} drm_lock_data_t;
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;
/* DMA support */
drm_buf_t *this_buffer; /* Buffer being sent */
drm_buf_t *next_buffer; /* Selected buffer to send */
} drm_device_dma_t;
#if __REALLY_HAVE_AGP
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 agp_mtrr;
int cant_use_aperture;
unsigned long page_mask;
} drm_agp_head_t;
#endif
typedef struct drm_sg_mem {
unsigned long handle;
void *virtual;
int pages;
dma_addr_t *busaddr;
} drm_sg_mem_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; /* MTRR slot used */
/* Private data */
bus_space_tag_t iot;
bus_space_handle_t ioh;
} drm_local_map_t;
typedef TAILQ_HEAD(drm_map_list, drm_map_list_entry) drm_map_list_t;
typedef struct drm_map_list_entry {
TAILQ_ENTRY(drm_map_list_entry) link;
drm_local_map_t *map;
} drm_map_list_entry_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_device {
#ifdef __NetBSD__
struct device device; /* NetBSD's softc is an extension of struct device */
#endif
const char *name; /* Simple driver name */
char *unique; /* Unique identifier: e.g., busid */
int unique_len; /* Length of unique field */
#ifdef __FreeBSD__
device_t device; /* Device instance from newbus */
#endif
dev_t devnode; /* Device number for mknod */
int flags; /* Flags to open(2) */
/* Locks */
DRM_SPINTYPE count_lock; /* For open_count, buf_use, buf_alloc */
struct lock dev_lock; /* For others */
/* Usage Counters */
int open_count; /* Outstanding files open */
int buf_use; /* Buffers in use -- cannot alloc */
int buf_alloc; /* Buffer allocation in progress */
/* 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];
/* Memory management */
drm_map_list_t *maplist; /* Linked list of regions */
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 irqrid; /* Interrupt used by board */
#ifdef __FreeBSD__
struct resource *irqr; /* Resource for interrupt used by board */
#elif defined(__NetBSD__)
struct pci_attach_args pa;
pci_intr_handle_t ih;
#endif
void *irqh; /* Handle from bus_setup_intr */
atomic_t context_flag; /* Context swapping flag */
struct callout timer; /* Timer for delaying ctx switch */
int last_context; /* Last current context */
#if __FreeBSD_version >= 400005
struct task task;
#endif
#if __HAVE_VBL_IRQ
wait_queue_head_t vbl_queue; /* vbl wait channel */
atomic_t vbl_received;
#if 0 /* vbl signals are untested */
struct drm_vbl_sig_list vbl_sig_list;
DRM_SPINTYPE vbl_lock;
#endif
#endif
#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;
#if __REALLY_HAVE_AGP
drm_agp_head_t *agp;
#endif
drm_sg_mem_t *sg; /* Scatter gather memory */
atomic_t *ctx_bitmap;
void *dev_private;
};
extern int DRM(flags);
/* Authentication (drm_auth.h) */
extern int DRM(add_magic)(drm_device_t *dev, drm_file_t *priv,
drm_magic_t magic);
extern int DRM(remove_magic)(drm_device_t *dev, drm_magic_t magic);
/* Driver support (drm_drv.h) */
extern int DRM(version)( DRM_IOCTL_ARGS );
/* Memory management support (drm_memory.h) */
extern void DRM(mem_init)(void);
extern void DRM(mem_uninit)(void);
extern void *DRM(alloc)(size_t size, int area);
extern void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size,
int area);
extern char *DRM(strdup)(const char *s, int area);
extern void DRM(strfree)(char *s, int area);
extern void DRM(free)(void *pt, size_t size, int area);
extern void *DRM(ioremap)(drm_device_t *dev, drm_local_map_t *map);
extern void *DRM(ioremap_nocache)(drm_device_t *dev, drm_local_map_t *map);
extern void DRM(ioremapfree)(drm_local_map_t *map);
#if __REALLY_HAVE_AGP
extern agp_memory *DRM(alloc_agp)(int pages, u32 type);
extern int DRM(free_agp)(agp_memory *handle, int pages);
extern int DRM(bind_agp)(agp_memory *handle, unsigned int start);
extern int DRM(unbind_agp)(agp_memory *handle);
#endif
extern int DRM(context_switch)(drm_device_t *dev, int old, int new);
extern int DRM(context_switch_complete)(drm_device_t *dev, int new);
#if __HAVE_CTX_BITMAP
extern int DRM(ctxbitmap_init)( drm_device_t *dev );
extern void DRM(ctxbitmap_cleanup)( drm_device_t *dev );
extern void DRM(ctxbitmap_free)( drm_device_t *dev, int ctx_handle );
extern int DRM(ctxbitmap_next)( drm_device_t *dev );
#endif
/* Locking IOCTL support (drm_lock.h) */
extern int DRM(lock_take)(__volatile__ unsigned int *lock,
unsigned int context);
extern int DRM(lock_transfer)(drm_device_t *dev,
__volatile__ unsigned int *lock,
unsigned int context);
extern int DRM(lock_free)(drm_device_t *dev,
__volatile__ unsigned int *lock,
unsigned int context);
/* Buffer management support (drm_bufs.h) */
extern int DRM(order)( unsigned long size );
#if __HAVE_DMA
/* DMA support (drm_dma.h) */
extern int DRM(dma_setup)(drm_device_t *dev);
extern void DRM(dma_takedown)(drm_device_t *dev);
extern void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf);
extern void DRM(reclaim_buffers)(drm_device_t *dev, DRMFILE filp);
#if __HAVE_DMA_IRQ
extern int DRM(irq_install)( drm_device_t *dev, int irq );
extern int DRM(irq_uninstall)( drm_device_t *dev );
extern void DRM(dma_service)( DRM_IRQ_ARGS );
extern void DRM(driver_irq_preinstall)( drm_device_t *dev );
extern void DRM(driver_irq_postinstall)( drm_device_t *dev );
extern void DRM(driver_irq_uninstall)( drm_device_t *dev );
#if __HAVE_DMA_IRQ_BH
extern void DRM(dma_immediate_bh)( DRM_TASKQUEUE_ARGS );
#endif
#endif
/* Buffer list support (drm_lists.h) */
#if __HAVE_DMA_WAITLIST
extern int DRM(waitlist_create)(drm_waitlist_t *bl, int count);
extern int DRM(waitlist_destroy)(drm_waitlist_t *bl);
extern int DRM(waitlist_put)(drm_waitlist_t *bl, drm_buf_t *buf);
extern drm_buf_t *DRM(waitlist_get)(drm_waitlist_t *bl);
#endif
#endif /* __HAVE_DMA */
#if __HAVE_VBL_IRQ
extern int DRM(vblank_wait)(drm_device_t *dev, unsigned int *vbl_seq);
extern void DRM(vbl_send_signals)( drm_device_t *dev );
#endif
#if __REALLY_HAVE_AGP
/* AGP/GART support (drm_agpsupport.h) */
extern drm_agp_head_t *DRM(agp_init)(void);
extern void DRM(agp_uninit)(void);
extern void DRM(agp_do_release)(void);
extern agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type);
extern int DRM(agp_free_memory)(agp_memory *handle);
extern int DRM(agp_bind_memory)(agp_memory *handle, off_t start);
extern int DRM(agp_unbind_memory)(agp_memory *handle);
#endif
#if __HAVE_SG
/* Scatter Gather Support (drm_scatter.h) */
extern void DRM(sg_cleanup)(drm_sg_mem_t *entry);
#endif
#if __REALLY_HAVE_SG
/* ATI PCIGART support (ati_pcigart.h) */
extern int DRM(ati_pcigart_init)(drm_device_t *dev,
unsigned long *addr,
dma_addr_t *bus_addr);
extern int DRM(ati_pcigart_cleanup)(drm_device_t *dev,
unsigned long addr,
dma_addr_t bus_addr);
#endif
/* Locking IOCTL support (drm_drv.h) */
extern int DRM(lock)(DRM_IOCTL_ARGS);
extern int DRM(unlock)(DRM_IOCTL_ARGS);
/* Misc. IOCTL support (drm_ioctl.h) */
extern int DRM(irq_busid)(DRM_IOCTL_ARGS);
extern int DRM(getunique)(DRM_IOCTL_ARGS);
extern int DRM(setunique)(DRM_IOCTL_ARGS);
extern int DRM(getmap)(DRM_IOCTL_ARGS);
extern int DRM(getclient)(DRM_IOCTL_ARGS);
extern int DRM(getstats)(DRM_IOCTL_ARGS);
extern int DRM(noop)(DRM_IOCTL_ARGS);
/* Context IOCTL support (drm_context.h) */
extern int DRM(resctx)(DRM_IOCTL_ARGS);
extern int DRM(addctx)(DRM_IOCTL_ARGS);
extern int DRM(modctx)(DRM_IOCTL_ARGS);
extern int DRM(getctx)(DRM_IOCTL_ARGS);
extern int DRM(switchctx)(DRM_IOCTL_ARGS);
extern int DRM(newctx)(DRM_IOCTL_ARGS);
extern int DRM(rmctx)(DRM_IOCTL_ARGS);
extern int DRM(setsareactx)(DRM_IOCTL_ARGS);
extern int DRM(getsareactx)(DRM_IOCTL_ARGS);
/* Drawable IOCTL support (drm_drawable.h) */
extern int DRM(adddraw)(DRM_IOCTL_ARGS);
extern int DRM(rmdraw)(DRM_IOCTL_ARGS);
/* Authentication IOCTL support (drm_auth.h) */
extern int DRM(getmagic)(DRM_IOCTL_ARGS);
extern int DRM(authmagic)(DRM_IOCTL_ARGS);
/* Buffer management support (drm_bufs.h) */
extern int DRM(addmap)(DRM_IOCTL_ARGS);
extern int DRM(rmmap)(DRM_IOCTL_ARGS);
#if __HAVE_DMA
extern int DRM(addbufs)(DRM_IOCTL_ARGS);
extern int DRM(infobufs)(DRM_IOCTL_ARGS);
extern int DRM(markbufs)(DRM_IOCTL_ARGS);
extern int DRM(freebufs)(DRM_IOCTL_ARGS);
extern int DRM(mapbufs)(DRM_IOCTL_ARGS);
#endif
/* DMA support (drm_dma.h) */
#if __HAVE_DMA
extern int DRM(control)(DRM_IOCTL_ARGS);
#endif
#if __HAVE_VBL_IRQ
extern int DRM(wait_vblank)(DRM_IOCTL_ARGS);
#endif
/* AGP/GART support (drm_agpsupport.h) */
#if __REALLY_HAVE_AGP
extern int DRM(agp_acquire)(DRM_IOCTL_ARGS);
extern int DRM(agp_release)(DRM_IOCTL_ARGS);
extern int DRM(agp_enable)(DRM_IOCTL_ARGS);
extern int DRM(agp_info)(DRM_IOCTL_ARGS);
extern int DRM(agp_alloc)(DRM_IOCTL_ARGS);
extern int DRM(agp_free)(DRM_IOCTL_ARGS);
extern int DRM(agp_unbind)(DRM_IOCTL_ARGS);
extern int DRM(agp_bind)(DRM_IOCTL_ARGS);
#endif
/* Scatter Gather Support (drm_scatter.h) */
#if __HAVE_SG
extern int DRM(sg_alloc)(DRM_IOCTL_ARGS);
extern int DRM(sg_free)(DRM_IOCTL_ARGS);
#endif
#endif /* __KERNEL__ */
#endif /* _DRM_P_H_ */
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