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drm/bsd-core/drmP.h

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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>
*
*/
#ifndef _DRM_P_H_
#define _DRM_P_H_
#if defined(_KERNEL) || defined(__KERNEL__)
#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)
/* 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 DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
(_map) = (_dev)->context_sareas[_ctx]; \
} while(0)
typedef struct drm_pci_id_list
{
int vendor;
int device;
long driver_private;
char *name;
} drm_pci_id_list_t;
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;
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_buf_entry {
int buf_size;
int buf_count;
drm_buf_t *buflist;
int seg_count;
int page_order;
vm_offset_t *seglist;
dma_addr_t *seglist_bus;
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 minor;
pid_t pid;
uid_t uid;
int refs;
drm_magic_t magic;
unsigned long ioctl_count;
void *driver_priv;
#ifdef DRIVER_FILE_FIELDS
DRIVER_FILE_FIELDS;
#endif
};
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;
/* DMA support */
drm_buf_t *this_buffer; /* Buffer being sent */
drm_buf_t *next_buffer; /* Selected buffer to send */
} 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_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; /* Boolean: MTRR 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;
/**
* DRM device functions structure
*/
struct drm_device {
#ifdef __NetBSD__
struct device device; /* NetBSD's softc is an extension of struct device */
#endif
/* Beginning of driver-config section */
int (*preinit)(struct drm_device *, unsigned long flags);
int (*postinit)(struct drm_device *, unsigned long flags);
void (*prerelease)(struct drm_device *, void *filp);
void (*pretakedown)(struct drm_device *);
int (*postcleanup)(struct drm_device *);
int (*presetup)(struct drm_device *);
int (*postsetup)(struct drm_device *);
void (*open_helper)(struct drm_device *, drm_file_t *);
void (*release)(struct drm_device *, void *filp);
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);
int (*dma_schedule)(struct drm_device *dev, int locked);
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_ioctl_desc_t *driver_ioctls;
int max_driver_ioctl;
int dev_priv_size;
int driver_major;
int driver_minor;
int driver_patchlevel;
const char *driver_name; /* Simple driver name */
const char *driver_desc; /* Longer driver name */
const char *driver_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;
unsigned use_ctxbitmap :1;
/* End of driver-config section */
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__)
struct pci_attach_args pa;
pci_intr_handle_t ih;
#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 */
#if __FreeBSD_version >= 400005
struct task task;
#endif
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;
drm_local_map_t *agp_buffer_map;
};
extern int drm_flags;
/* 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);
#elif defined(__NetBSD__)
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);
#endif
/* 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(unsigned long offset, size_t size, int flags);
agp_memory *drm_alloc_agp(int pages, u32 type);
int drm_free_agp(agp_memory *handle, int pages);
int drm_bind_agp(agp_memory *handle, unsigned int start);
int drm_unbind_agp(agp_memory *handle);
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) */
int drm_order(unsigned long size);
/* 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);
/* 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/GART support (drm_agpsupport.c) */
int drm_device_is_agp(drm_device_t *dev);
drm_agp_head_t *drm_agp_init(void);
void drm_agp_uninit(void);
void drm_agp_do_release(void);
agp_memory *drm_agp_allocate_memory(size_t pages, u32 type);
int drm_agp_free_memory(agp_memory *handle);
int drm_agp_bind_memory(agp_memory *handle, off_t start);
int drm_agp_unbind_memory(agp_memory *handle);
/* Scatter Gather Support (drm_scatter.c) */
void drm_sg_cleanup(drm_sg_mem_t *entry);
/* ATI PCIGART support (ati_pcigart.c) */
int drm_ati_pcigart_init(drm_device_t *dev, unsigned long *addr,
dma_addr_t *bus_addr);
int drm_ati_pcigart_cleanup(drm_device_t *dev, unsigned long addr,
dma_addr_t bus_addr);
/* 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(DRM_IOCTL_ARGS);
int drm_rmmap(DRM_IOCTL_ARGS);
int drm_addbufs(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);
/* 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(DRM_IOCTL_ARGS);
int drm_agp_release(DRM_IOCTL_ARGS);
int drm_agp_enable(DRM_IOCTL_ARGS);
int drm_agp_info(DRM_IOCTL_ARGS);
int drm_agp_alloc(DRM_IOCTL_ARGS);
int drm_agp_free(DRM_IOCTL_ARGS);
int drm_agp_unbind(DRM_IOCTL_ARGS);
int drm_agp_bind(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) */
void *drm_pci_alloc(drm_device_t *dev, size_t size, size_t align,
dma_addr_t maxaddr, dma_addr_t *busaddr);
void drm_pci_free(drm_device_t *dev, size_t size, void *vaddr,
dma_addr_t busaddr);
/* 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);
}
#if 0
static __inline__ void drm_core_ioremap_nocache(struct drm_map *map, struct drm_device *dev)
{
map->handle = drm_ioremap_nocache(dev, map);
}
#endif
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_map_list_entry_t *listentry;
TAILQ_FOREACH(listentry, dev->maplist, link) {
if ( listentry->map->offset == offset ) {
return listentry->map;
}
}
return NULL;
}
static __inline__ void drm_core_dropmap(struct drm_map *map)
{
}
#endif /* __KERNEL__ */
#endif /* _DRM_P_H_ */
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