generated/htbuffer_bridge/server_htbuffer_bridge.c - third_party/imgtec-pvr-rgx-km - Git at Google

 /*******************************************************************************
 @File
 @Title          Server bridge for htbuffer
 @Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
 @Description    Implements the server side of the bridge for htbuffer
 @License        MIT

 The contents of this file are subject to the MIT license as set out below.

 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 shall be included in
 all copies or substantial portions of the Software.

 This License is also included in this distribution in the file called
 "MIT-COPYING".

 EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) 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; AND (B) IN NO EVENT SHALL THE AUTHORS OR
 COPYRIGHT HOLDERS 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.
 ********************************************************************************/

 #include <linux/uaccess.h>

 #include "img_defs.h"

 #include "htbserver.h"


 #include "common_htbuffer_bridge.h"

 #include "allocmem.h"
 #include "pvr_debug.h"
 #include "connection_server.h"
 #include "pvr_bridge.h"
 #if defined(SUPPORT_RGX)
 #include "rgx_bridge.h"
 #endif
 #include "srvcore.h"
 #include "handle.h"

 #include <linux/slab.h>

 #include "lock.h"


 #if !defined(EXCLUDE_HTBUFFER_BRIDGE)


 /* ***************************************************************************
  * Server-side bridge entry points
  */

 #if defined(PVR_NEVER_USED)
 static IMG_INT
 PVRSRVBridgeHTBConfigure(IMG_UINT32 ui32DispatchTableEntry,
 					  PVRSRV_BRIDGE_IN_HTBCONFIGURE *psHTBConfigureIN,
 					  PVRSRV_BRIDGE_OUT_HTBCONFIGURE *psHTBConfigureOUT,
 					 CONNECTION_DATA *psConnection)
 {
 	IMG_CHAR *uiNameInt = NULL;

 	IMG_UINT32 ui32NextOffset = 0;
 	IMG_BYTE   *pArrayArgsBuffer = NULL;
 #if !defined(INTEGRITY_OS)
 	IMG_BOOL bHaveEnoughSpace = IMG_FALSE;
 #endif

 	IMG_UINT32 ui32BufferSize =
 			(psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR)) +
 			0;


 	PVR_UNREFERENCED_PARAMETER(psConnection);


 	if (ui32BufferSize != 0)
 	{
 #if !defined(INTEGRITY_OS)
 		/* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */
 		IMG_UINT32 ui32InBufferOffset = PVR_ALIGN(sizeof(*psHTBConfigureIN), sizeof(unsigned long));
 		IMG_UINT32 ui32InBufferExcessSize = ui32InBufferOffset >= PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 :
 			PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset;

 		bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize;
 		if (bHaveEnoughSpace)
 		{
 			IMG_BYTE *pInputBuffer = (IMG_BYTE *)psHTBConfigureIN;

 			pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset];
 		}
 		else
 #endif
 		{
 			pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize);

 			if(!pArrayArgsBuffer)
 			{
 				psHTBConfigureOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY;
 				goto HTBConfigure_exit;
 			}
 		}
 	}

 	if (psHTBConfigureIN->ui32NameSize != 0)
 	{
 		uiNameInt = (IMG_CHAR*)(((IMG_UINT8 *)pArrayArgsBuffer) + ui32NextOffset);
 		ui32NextOffset += psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR);
 	}

 			/* Copy the data over */
 			if (psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR) > 0)
 			{
 				if ( OSCopyFromUser(NULL, uiNameInt, (const void __user *) psHTBConfigureIN->puiName, psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR)) != PVRSRV_OK )
 				{
 					psHTBConfigureOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;

 					goto HTBConfigure_exit;
 				}
 			}


 	psHTBConfigureOUT->eError =
 		PVRSRVHTBConfigureKM(
 					psHTBConfigureIN->ui32NameSize,
 					uiNameInt,
 					psHTBConfigureIN->ui32BufferSize);


 HTBConfigure_exit:


 	/* Allocated space should be equal to the last updated offset */
 	PVR_ASSERT(ui32BufferSize == ui32NextOffset);

 #if defined(INTEGRITY_OS)
 	if(pArrayArgsBuffer)
 #else
 	if(!bHaveEnoughSpace && pArrayArgsBuffer)
 #endif
 		OSFreeMemNoStats(pArrayArgsBuffer);


 	return 0;
 }

 #else
 #define PVRSRVBridgeHTBConfigure NULL
 #endif

 static IMG_INT
 PVRSRVBridgeHTBControl(IMG_UINT32 ui32DispatchTableEntry,
 					  PVRSRV_BRIDGE_IN_HTBCONTROL *psHTBControlIN,
 					  PVRSRV_BRIDGE_OUT_HTBCONTROL *psHTBControlOUT,
 					 CONNECTION_DATA *psConnection)
 {
 	IMG_UINT32 *ui32GroupEnableInt = NULL;

 	IMG_UINT32 ui32NextOffset = 0;
 	IMG_BYTE   *pArrayArgsBuffer = NULL;
 #if !defined(INTEGRITY_OS)
 	IMG_BOOL bHaveEnoughSpace = IMG_FALSE;
 #endif

 	IMG_UINT32 ui32BufferSize =
 			(psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32)) +
 			0;


 	PVR_UNREFERENCED_PARAMETER(psConnection);


 	if (ui32BufferSize != 0)
 	{
 #if !defined(INTEGRITY_OS)
 		/* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */
 		IMG_UINT32 ui32InBufferOffset = PVR_ALIGN(sizeof(*psHTBControlIN), sizeof(unsigned long));
 		IMG_UINT32 ui32InBufferExcessSize = ui32InBufferOffset >= PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 :
 			PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset;

 		bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize;
 		if (bHaveEnoughSpace)
 		{
 			IMG_BYTE *pInputBuffer = (IMG_BYTE *)psHTBControlIN;

 			pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset];
 		}
 		else
 #endif
 		{
 			pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize);

 			if(!pArrayArgsBuffer)
 			{
 				psHTBControlOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY;
 				goto HTBControl_exit;
 			}
 		}
 	}

 	if (psHTBControlIN->ui32NumGroups != 0)
 	{
 		ui32GroupEnableInt = (IMG_UINT32*)(((IMG_UINT8 *)pArrayArgsBuffer) + ui32NextOffset);
 		ui32NextOffset += psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32);
 	}

 			/* Copy the data over */
 			if (psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32) > 0)
 			{
 				if ( OSCopyFromUser(NULL, ui32GroupEnableInt, (const void __user *) psHTBControlIN->pui32GroupEnable, psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32)) != PVRSRV_OK )
 				{
 					psHTBControlOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;

 					goto HTBControl_exit;
 				}
 			}


 	psHTBControlOUT->eError =
 		HTBControlKM(
 					psHTBControlIN->ui32NumGroups,
 					ui32GroupEnableInt,
 					psHTBControlIN->ui32LogLevel,
 					psHTBControlIN->ui32EnablePID,
 					psHTBControlIN->ui32LogMode,
 					psHTBControlIN->ui32OpMode);


 HTBControl_exit:


 	/* Allocated space should be equal to the last updated offset */
 	PVR_ASSERT(ui32BufferSize == ui32NextOffset);

 #if defined(INTEGRITY_OS)
 	if(pArrayArgsBuffer)
 #else
 	if(!bHaveEnoughSpace && pArrayArgsBuffer)
 #endif
 		OSFreeMemNoStats(pArrayArgsBuffer);


 	return 0;
 }


 static IMG_INT
 PVRSRVBridgeHTBLog(IMG_UINT32 ui32DispatchTableEntry,
 					  PVRSRV_BRIDGE_IN_HTBLOG *psHTBLogIN,
 					  PVRSRV_BRIDGE_OUT_HTBLOG *psHTBLogOUT,
 					 CONNECTION_DATA *psConnection)
 {
 	IMG_UINT32 *ui32ArgsInt = NULL;

 	IMG_UINT32 ui32NextOffset = 0;
 	IMG_BYTE   *pArrayArgsBuffer = NULL;
 #if !defined(INTEGRITY_OS)
 	IMG_BOOL bHaveEnoughSpace = IMG_FALSE;
 #endif

 	IMG_UINT32 ui32BufferSize =
 			(psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32)) +
 			0;


 	PVR_UNREFERENCED_PARAMETER(psConnection);


 	if (ui32BufferSize != 0)
 	{
 #if !defined(INTEGRITY_OS)
 		/* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */
 		IMG_UINT32 ui32InBufferOffset = PVR_ALIGN(sizeof(*psHTBLogIN), sizeof(unsigned long));
 		IMG_UINT32 ui32InBufferExcessSize = ui32InBufferOffset >= PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 :
 			PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset;

 		bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize;
 		if (bHaveEnoughSpace)
 		{
 			IMG_BYTE *pInputBuffer = (IMG_BYTE *)psHTBLogIN;

 			pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset];
 		}
 		else
 #endif
 		{
 			pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize);

 			if(!pArrayArgsBuffer)
 			{
 				psHTBLogOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY;
 				goto HTBLog_exit;
 			}
 		}
 	}

 	if (psHTBLogIN->ui32NumArgs != 0)
 	{
 		ui32ArgsInt = (IMG_UINT32*)(((IMG_UINT8 *)pArrayArgsBuffer) + ui32NextOffset);
 		ui32NextOffset += psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32);
 	}

 			/* Copy the data over */
 			if (psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32) > 0)
 			{
 				if ( OSCopyFromUser(NULL, ui32ArgsInt, (const void __user *) psHTBLogIN->pui32Args, psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32)) != PVRSRV_OK )
 				{
 					psHTBLogOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;

 					goto HTBLog_exit;
 				}
 			}


 	psHTBLogOUT->eError =
 		HTBLogKM(
 					psHTBLogIN->ui32PID,
 					psHTBLogIN->ui32TimeStamp,
 					psHTBLogIN->ui32SF,
 					psHTBLogIN->ui32NumArgs,
 					ui32ArgsInt);


 HTBLog_exit:


 	/* Allocated space should be equal to the last updated offset */
 	PVR_ASSERT(ui32BufferSize == ui32NextOffset);

 #if defined(INTEGRITY_OS)
 	if(pArrayArgsBuffer)
 #else
 	if(!bHaveEnoughSpace && pArrayArgsBuffer)
 #endif
 		OSFreeMemNoStats(pArrayArgsBuffer);


 	return 0;
 }


 /* ***************************************************************************
  * Server bridge dispatch related glue
  */

 static POS_LOCK pHTBUFFERBridgeLock;
 static IMG_BOOL bUseLock = IMG_TRUE;
 #endif /* EXCLUDE_HTBUFFER_BRIDGE */

 #if !defined(EXCLUDE_HTBUFFER_BRIDGE)
 PVRSRV_ERROR InitHTBUFFERBridge(void);
 PVRSRV_ERROR DeinitHTBUFFERBridge(void);

 /*
  * Register all HTBUFFER functions with services
  */
 PVRSRV_ERROR InitHTBUFFERBridge(void)
 {
 	PVR_LOGR_IF_ERROR(OSLockCreate(&pHTBUFFERBridgeLock, LOCK_TYPE_PASSIVE), "OSLockCreate");

 	SetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONFIGURE, PVRSRVBridgeHTBConfigure,
 					pHTBUFFERBridgeLock, bUseLock);

 	SetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONTROL, PVRSRVBridgeHTBControl,
 					pHTBUFFERBridgeLock, bUseLock);

 	SetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBLOG, PVRSRVBridgeHTBLog,
 					pHTBUFFERBridgeLock, bUseLock);


 	return PVRSRV_OK;
 }

 /*
  * Unregister all htbuffer functions with services
  */
 PVRSRV_ERROR DeinitHTBUFFERBridge(void)
 {
 	PVR_LOGR_IF_ERROR(OSLockDestroy(pHTBUFFERBridgeLock), "OSLockDestroy");

 	UnsetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONFIGURE);

 	UnsetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONTROL);

 	UnsetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBLOG);


 	return PVRSRV_OK;
 }
 #else /* EXCLUDE_HTBUFFER_BRIDGE */
 /* This bridge is conditional on EXCLUDE_HTBUFFER_BRIDGE - when defined,
  * do not populate the dispatch table with its functions
  */
 #define InitHTBUFFERBridge() \
 	PVRSRV_OK

 #define DeinitHTBUFFERBridge() \
 	PVRSRV_OK

 #endif /* EXCLUDE_HTBUFFER_BRIDGE */
	/*******************************************************************************
	@File
	@Title Server bridge for htbuffer
	@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
	@Description Implements the server side of the bridge for htbuffer
	@License MIT

	The contents of this file are subject to the MIT license as set out below.

	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 shall be included in
	all copies or substantial portions of the Software.

	This License is also included in this distribution in the file called
	"MIT-COPYING".

	EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) 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; AND (B) IN NO EVENT SHALL THE AUTHORS OR
	COPYRIGHT HOLDERS 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.
	********************************************************************************/

	#include <linux/uaccess.h>

	#include "img_defs.h"

	#include "htbserver.h"


	#include "common_htbuffer_bridge.h"

	#include "allocmem.h"
	#include "pvr_debug.h"
	#include "connection_server.h"
	#include "pvr_bridge.h"
	#if defined(SUPPORT_RGX)
	#include "rgx_bridge.h"
	#endif
	#include "srvcore.h"
	#include "handle.h"

	#include <linux/slab.h>

	#include "lock.h"


	#if !defined(EXCLUDE_HTBUFFER_BRIDGE)



	/* ***************************************************************************
	* Server-side bridge entry points
	*/

	#if defined(PVR_NEVER_USED)
	static IMG_INT
	PVRSRVBridgeHTBConfigure(IMG_UINT32 ui32DispatchTableEntry,
	PVRSRV_BRIDGE_IN_HTBCONFIGURE *psHTBConfigureIN,
	PVRSRV_BRIDGE_OUT_HTBCONFIGURE *psHTBConfigureOUT,
	CONNECTION_DATA *psConnection)
	{
	IMG_CHAR *uiNameInt = NULL;

	IMG_UINT32 ui32NextOffset = 0;
	IMG_BYTE *pArrayArgsBuffer = NULL;
	#if !defined(INTEGRITY_OS)
	IMG_BOOL bHaveEnoughSpace = IMG_FALSE;
	#endif

	IMG_UINT32 ui32BufferSize =
	(psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR)) +
	0;


	PVR_UNREFERENCED_PARAMETER(psConnection);



	if (ui32BufferSize != 0)
	{
	#if !defined(INTEGRITY_OS)
	/* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */
	IMG_UINT32 ui32InBufferOffset = PVR_ALIGN(sizeof(*psHTBConfigureIN), sizeof(unsigned long));
	IMG_UINT32 ui32InBufferExcessSize = ui32InBufferOffset >= PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 :
	PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset;

	bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize;
	if (bHaveEnoughSpace)
	{
	IMG_BYTE pInputBuffer = (IMG_BYTE )psHTBConfigureIN;

	pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset];
	}
	else
	#endif
	{
	pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize);

	if(!pArrayArgsBuffer)
	{
	psHTBConfigureOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY;
	goto HTBConfigure_exit;
	}
	}
	}

	if (psHTBConfigureIN->ui32NameSize != 0)
	{
	uiNameInt = (IMG_CHAR)(((IMG_UINT8 )pArrayArgsBuffer) + ui32NextOffset);
	ui32NextOffset += psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR);
	}

	/* Copy the data over */
	if (psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR) > 0)
	{
	if ( OSCopyFromUser(NULL, uiNameInt, (const void __user ) psHTBConfigureIN->puiName, psHTBConfigureIN->ui32NameSize sizeof(IMG_CHAR)) != PVRSRV_OK )
	{
	psHTBConfigureOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;

	goto HTBConfigure_exit;
	}
	}


	psHTBConfigureOUT->eError =
	PVRSRVHTBConfigureKM(
	psHTBConfigureIN->ui32NameSize,
	uiNameInt,
	psHTBConfigureIN->ui32BufferSize);




	HTBConfigure_exit:



	/* Allocated space should be equal to the last updated offset */
	PVR_ASSERT(ui32BufferSize == ui32NextOffset);

	#if defined(INTEGRITY_OS)
	if(pArrayArgsBuffer)
	#else
	if(!bHaveEnoughSpace && pArrayArgsBuffer)
	#endif
	OSFreeMemNoStats(pArrayArgsBuffer);


	return 0;
	}

	#else
	#define PVRSRVBridgeHTBConfigure NULL
	#endif

	static IMG_INT
	PVRSRVBridgeHTBControl(IMG_UINT32 ui32DispatchTableEntry,
	PVRSRV_BRIDGE_IN_HTBCONTROL *psHTBControlIN,
	PVRSRV_BRIDGE_OUT_HTBCONTROL *psHTBControlOUT,
	CONNECTION_DATA *psConnection)
	{
	IMG_UINT32 *ui32GroupEnableInt = NULL;

	IMG_UINT32 ui32NextOffset = 0;
	IMG_BYTE *pArrayArgsBuffer = NULL;
	#if !defined(INTEGRITY_OS)
	IMG_BOOL bHaveEnoughSpace = IMG_FALSE;
	#endif

	IMG_UINT32 ui32BufferSize =
	(psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32)) +
	0;


	PVR_UNREFERENCED_PARAMETER(psConnection);



	if (ui32BufferSize != 0)
	{
	#if !defined(INTEGRITY_OS)
	/* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */
	IMG_UINT32 ui32InBufferOffset = PVR_ALIGN(sizeof(*psHTBControlIN), sizeof(unsigned long));
	IMG_UINT32 ui32InBufferExcessSize = ui32InBufferOffset >= PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 :
	PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset;

	bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize;
	if (bHaveEnoughSpace)
	{
	IMG_BYTE pInputBuffer = (IMG_BYTE )psHTBControlIN;

	pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset];
	}
	else
	#endif
	{
	pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize);

	if(!pArrayArgsBuffer)
	{
	psHTBControlOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY;
	goto HTBControl_exit;
	}
	}
	}

	if (psHTBControlIN->ui32NumGroups != 0)
	{
	ui32GroupEnableInt = (IMG_UINT32)(((IMG_UINT8 )pArrayArgsBuffer) + ui32NextOffset);
	ui32NextOffset += psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32);
	}

	/* Copy the data over */
	if (psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32) > 0)
	{
	if ( OSCopyFromUser(NULL, ui32GroupEnableInt, (const void __user ) psHTBControlIN->pui32GroupEnable, psHTBControlIN->ui32NumGroups sizeof(IMG_UINT32)) != PVRSRV_OK )
	{
	psHTBControlOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;

	goto HTBControl_exit;
	}
	}


	psHTBControlOUT->eError =
	HTBControlKM(
	psHTBControlIN->ui32NumGroups,
	ui32GroupEnableInt,
	psHTBControlIN->ui32LogLevel,
	psHTBControlIN->ui32EnablePID,
	psHTBControlIN->ui32LogMode,
	psHTBControlIN->ui32OpMode);




	HTBControl_exit:



	/* Allocated space should be equal to the last updated offset */
	PVR_ASSERT(ui32BufferSize == ui32NextOffset);

	#if defined(INTEGRITY_OS)
	if(pArrayArgsBuffer)
	#else
	if(!bHaveEnoughSpace && pArrayArgsBuffer)
	#endif
	OSFreeMemNoStats(pArrayArgsBuffer);


	return 0;
	}


	static IMG_INT
	PVRSRVBridgeHTBLog(IMG_UINT32 ui32DispatchTableEntry,
	PVRSRV_BRIDGE_IN_HTBLOG *psHTBLogIN,
	PVRSRV_BRIDGE_OUT_HTBLOG *psHTBLogOUT,
	CONNECTION_DATA *psConnection)
	{
	IMG_UINT32 *ui32ArgsInt = NULL;

	IMG_UINT32 ui32NextOffset = 0;
	IMG_BYTE *pArrayArgsBuffer = NULL;
	#if !defined(INTEGRITY_OS)
	IMG_BOOL bHaveEnoughSpace = IMG_FALSE;
	#endif

	IMG_UINT32 ui32BufferSize =
	(psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32)) +
	0;


	PVR_UNREFERENCED_PARAMETER(psConnection);



	if (ui32BufferSize != 0)
	{
	#if !defined(INTEGRITY_OS)
	/* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */
	IMG_UINT32 ui32InBufferOffset = PVR_ALIGN(sizeof(*psHTBLogIN), sizeof(unsigned long));
	IMG_UINT32 ui32InBufferExcessSize = ui32InBufferOffset >= PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 :
	PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset;

	bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize;
	if (bHaveEnoughSpace)
	{
	IMG_BYTE pInputBuffer = (IMG_BYTE )psHTBLogIN;

	pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset];
	}
	else
	#endif
	{
	pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize);

	if(!pArrayArgsBuffer)
	{
	psHTBLogOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY;
	goto HTBLog_exit;
	}
	}
	}

	if (psHTBLogIN->ui32NumArgs != 0)
	{
	ui32ArgsInt = (IMG_UINT32)(((IMG_UINT8 )pArrayArgsBuffer) + ui32NextOffset);
	ui32NextOffset += psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32);
	}

	/* Copy the data over */
	if (psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32) > 0)
	{
	if ( OSCopyFromUser(NULL, ui32ArgsInt, (const void __user ) psHTBLogIN->pui32Args, psHTBLogIN->ui32NumArgs sizeof(IMG_UINT32)) != PVRSRV_OK )
	{
	psHTBLogOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;

	goto HTBLog_exit;
	}
	}


	psHTBLogOUT->eError =
	HTBLogKM(
	psHTBLogIN->ui32PID,
	psHTBLogIN->ui32TimeStamp,
	psHTBLogIN->ui32SF,
	psHTBLogIN->ui32NumArgs,
	ui32ArgsInt);




	HTBLog_exit:



	/* Allocated space should be equal to the last updated offset */
	PVR_ASSERT(ui32BufferSize == ui32NextOffset);

	#if defined(INTEGRITY_OS)
	if(pArrayArgsBuffer)
	#else
	if(!bHaveEnoughSpace && pArrayArgsBuffer)
	#endif
	OSFreeMemNoStats(pArrayArgsBuffer);


	return 0;
	}




	/* ***************************************************************************
	* Server bridge dispatch related glue
	*/

	static POS_LOCK pHTBUFFERBridgeLock;
	static IMG_BOOL bUseLock = IMG_TRUE;
	#endif /* EXCLUDE_HTBUFFER_BRIDGE */

	#if !defined(EXCLUDE_HTBUFFER_BRIDGE)
	PVRSRV_ERROR InitHTBUFFERBridge(void);
	PVRSRV_ERROR DeinitHTBUFFERBridge(void);

	/*
	* Register all HTBUFFER functions with services
	*/
	PVRSRV_ERROR InitHTBUFFERBridge(void)
	{
	PVR_LOGR_IF_ERROR(OSLockCreate(&pHTBUFFERBridgeLock, LOCK_TYPE_PASSIVE), "OSLockCreate");

	SetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONFIGURE, PVRSRVBridgeHTBConfigure,
	pHTBUFFERBridgeLock, bUseLock);

	SetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONTROL, PVRSRVBridgeHTBControl,
	pHTBUFFERBridgeLock, bUseLock);

	SetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBLOG, PVRSRVBridgeHTBLog,
	pHTBUFFERBridgeLock, bUseLock);


	return PVRSRV_OK;
	}

	/*
	* Unregister all htbuffer functions with services
	*/
	PVRSRV_ERROR DeinitHTBUFFERBridge(void)
	{
	PVR_LOGR_IF_ERROR(OSLockDestroy(pHTBUFFERBridgeLock), "OSLockDestroy");

	UnsetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONFIGURE);

	UnsetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONTROL);

	UnsetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBLOG);



	return PVRSRV_OK;
	}
	#else /* EXCLUDE_HTBUFFER_BRIDGE */
	/* This bridge is conditional on EXCLUDE_HTBUFFER_BRIDGE - when defined,
	* do not populate the dispatch table with its functions
	*/
	#define InitHTBUFFERBridge() \
	PVRSRV_OK

	#define DeinitHTBUFFERBridge() \
	PVRSRV_OK

	#endif /* EXCLUDE_HTBUFFER_BRIDGE */