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/**************************************************************************
*
* Copyright 2006-2008 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_BUFPOOL_H_
#define _WSBM_BUFPOOL_H_
#include <errno.h>
#include "wsbm_util.h"
#include "wsbm_driver.h"
#include "wsbm_atomic.h"
struct _WsbmFenceObject;
struct _WsbmBufStorage
{
struct _WsbmBufferPool *pool;
struct _WsbmMutex mutex;
struct _WsbmAtomic refCount;
struct _WsbmAtomic onList;
void *destroyArg;
void (*destroyContainer) (void *);
};
struct _WsbmKernelBuf;
struct _WsbmBufferPool
{
int fd;
int (*map) (struct _WsbmBufStorage * buf, unsigned mode, void **virtual);
void (*unmap) (struct _WsbmBufStorage * buf);
int (*syncforcpu) (struct _WsbmBufStorage * buf, unsigned mode,
int noBlock);
void (*releasefromcpu) (struct _WsbmBufStorage * buf, unsigned mode);
void (*destroy) (struct _WsbmBufStorage ** buf);
unsigned long (*offset) (struct _WsbmBufStorage * buf);
unsigned long (*poolOffset) (struct _WsbmBufStorage * buf);
uint32_t(*placement) (struct _WsbmBufStorage * buf);
unsigned long (*size) (struct _WsbmBufStorage * buf);
struct _WsbmKernelBuf *(*kernel) (struct _WsbmBufStorage * buf);
struct _WsbmBufStorage *(*create) (struct _WsbmBufferPool * pool,
unsigned long size,
uint32_t placement,
unsigned alignment,
int share,
int pin);
struct _WsbmBufStorage *(*createByReference) (struct _WsbmBufferPool *
pool, uint32_t handle);
void (*fence) (struct _WsbmBufStorage * buf,
struct _WsbmFenceObject * fence);
void (*unvalidate) (struct _WsbmBufStorage * buf);
int (*validate) (struct _WsbmBufStorage * buf, uint64_t set_flags,
uint64_t clr_flags);
int (*waitIdle) (struct _WsbmBufStorage * buf, int lazy);
int (*setAttr) (struct _WsbmBufStorage * buf,
uint32_t placement,
unsigned alignment,
int share,
int pin);
void (*takeDown) (struct _WsbmBufferPool * pool);
};
static inline int
wsbmBufStorageInit(struct _WsbmBufStorage *storage,
struct _WsbmBufferPool *pool)
{
int ret = WSBM_MUTEX_INIT(&storage->mutex);
if (ret)
return -ENOMEM;
storage->pool = pool;
wsbmAtomicSet(&storage->refCount, 1);
wsbmAtomicSet(&storage->onList, 0);
storage->destroyContainer = NULL;
return 0;
}
static inline void
wsbmBufStorageTakedown(struct _WsbmBufStorage *storage)
{
WSBM_MUTEX_FREE(&storage->mutex);
}
static inline void
wsbmBufStorageUnref(struct _WsbmBufStorage **pStorage)
{
struct _WsbmBufStorage *storage = *pStorage;
*pStorage = NULL;
if (storage == NULL)
return;
if (wsbmAtomicDecZero(&storage->refCount)) {
if (storage->destroyContainer)
storage->destroyContainer(storage->destroyArg);
storage->pool->destroy(&storage);
return;
}
}
/*
* Builtin pools.
*/
extern struct _WsbmBufferPool *wsbmMallocPoolInit(void);
struct _WsbmAttr;
struct _WsbmSlabCache;
extern struct _WsbmBufferPool *wsbmSlabPoolInit(int fd,
struct _WsbmBufferPool *basePool,
const struct _WsbmAttr *attr,
uint32_t smallestSize,
uint32_t numSizes,
uint32_t desiredNumBuffers,
uint32_t maxSlabSize,
struct _WsbmSlabCache *cache);
extern struct _WsbmSlabCache *wsbmSlabCacheInit(uint32_t checkIntervalMsec,
uint32_t slabTimeoutMsec);
extern void wsbmSlabCacheFinish(struct _WsbmSlabCache *cache);
extern struct _WsbmBufferPool *wsbmUserPoolInit(void *vramAddr,
unsigned long vramStart,
unsigned long vramSize,
void *agpAddr,
unsigned long agpStart,
unsigned long agpSize,
uint32_t system_flag,
uint32_t vram_flag,
uint32_t agp_flag,
uint32_t(*fenceTypes)
(uint64_t set_flags));
extern void wsbmUserPoolClean(struct _WsbmBufferPool *pool,
int cleanVram, int cleanAgp);
#endif
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