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/**************************************************************************
*
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
* All Rights Reserved.
* Copyright 2009 VMware, Inc., Palo Alto, CA., USA
* 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS 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:
* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
*/
#ifndef _WSBM_DRIVER_H
#define _WSBM_DRIVER_H
#include <stdint.h>
#include "wsbm_util.h"
#define WSBM_MUTEX_SPACE 16
#define WSBM_COND_SPACE 16
struct _WsbmMutex
{
struct _WsbmThreadFuncs *func;
unsigned long storage[WSBM_MUTEX_SPACE];
};
struct _WsbmCond
{
struct _WsbmThreadFuncs *func;
unsigned long storage[WSBM_COND_SPACE];
};
struct _WsbmThreadFuncs
{
int (*mutexInit) (struct _WsbmMutex *, struct _WsbmThreadFuncs *);
void (*mutexFree) (struct _WsbmMutex *);
void (*mutexLock) (struct _WsbmMutex *);
void (*mutexUnlock) (struct _WsbmMutex *);
int (*condInit) (struct _WsbmCond *, struct _WsbmThreadFuncs *);
void (*condFree) (struct _WsbmCond *);
void (*condWait) (struct _WsbmCond *, struct _WsbmMutex *);
void (*condBroadcast) (struct _WsbmCond *);
};
extern struct _WsbmThreadFuncs *wsbmCurThreadFunc;
#define WSBM_MUTEX_INIT(_mutex) \
wsbmThreadFuncs()->mutexInit(_mutex,wsbmThreadFuncs())
#define WSBM_MUTEX_FREE(_mutex) \
{ \
(_mutex)->func->mutexFree(_mutex); \
}
#define WSBM_MUTEX_LOCK(_mutex) \
(_mutex)->func->mutexLock(_mutex);
#define WSBM_MUTEX_UNLOCK(_mutex) \
(_mutex)->func->mutexUnlock(_mutex);
#define WSBM_COND_INIT(_mutex) \
wsbmThreadFuncs()->condInit(_mutex, wsbmThreadFuncs())
#define WSBM_COND_FREE(_cond) \
{ \
(_cond)->func->condFree(_cond); \
}
#define WSBM_COND_WAIT(_cond, _mutex) \
(_cond)->func->condWait(_cond, _mutex);
#define WSBM_COND_BROADCAST(_cond) \
(_cond)->func->condBroadcast(_cond);
struct _WsbmVNodeDriver
{
int driver_id;
struct _ValidateNode *(*alloc) (const struct _WsbmVNodeDriver *);
void (*free) (struct _ValidateNode *);
int (*init) (struct _ValidateNode *);
int (*reaccount) (struct _ValidateNode *, uint64_t new_set_flags,
uint64_t new_clr_flags);
};
extern struct _WsbmVNodeFuncs *wsbmCurVNodeFunc;
struct _WsbmBufStorage;
struct _WsbmKernelBuf;
struct _ValidateNode
{
uint32_t hash;
int type_id;
struct _WsbmListHead head;
struct _WsbmListHead hashHead;
int listItem;
uint64_t set_flags;
uint64_t clr_flags;
void *buf;
const struct _WsbmVNodeDriver *driver;
};
static inline struct _WsbmVNodeFuncs *
wsbmVNodeFuncs(void)
{
return wsbmCurVNodeFunc;
}
static inline struct _WsbmThreadFuncs *
wsbmThreadFuncs(void)
{
return wsbmCurThreadFunc;
}
extern struct _WsbmThreadFuncs *wsbmNullThreadFuncs(void);
extern struct _WsbmThreadFuncs *wsbmPThreadFuncs(void);
#endif
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