drivers/gpu/drm/img-rogue/physheap.c - chromiumos/third_party/kernel - Git at Google

 /*************************************************************************/ /*!
 @File           physheap.c
 @Title          Physical heap management
 @Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
 @Description    Management functions for the physical heap(s). A heap contains
                 all the information required by services when using memory from
                 that heap (such as CPU <> Device physical address translation).
                 A system must register one heap but can have more then one which
                 is why a heap must register with a (system) unique ID.
 @License        Dual MIT/GPLv2

 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.

 Alternatively, the contents of this file may be used under the terms of
 the GNU General Public License Version 2 ("GPL") in which case the provisions
 of GPL are applicable instead of those above.

 If you wish to allow use of your version of this file only under the terms of
 GPL, and not to allow others to use your version of this file under the terms
 of the MIT license, indicate your decision by deleting the provisions above
 and replace them with the notice and other provisions required by GPL as set
 out in the file called "GPL-COPYING" included in this distribution. If you do
 not delete the provisions above, a recipient may use your version of this file
 under the terms of either the MIT license or GPL.

 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 "img_types.h"
 #include "physheap.h"
 #include "allocmem.h"
 #include "pvr_debug.h"
 #include "osfunc.h"
 #include "pvrsrv.h"

 struct _PHYS_HEAP_
 {
 	/*! ID of this physical memory heap */
 	IMG_UINT32					ui32PhysHeapID;
 	/*! The type of this heap */
 	PHYS_HEAP_TYPE			eType;

 	/*! PDump name of this physical memory heap */
 	IMG_CHAR					*pszPDumpMemspaceName;
 	/*! Private data for the translate routines */
 	IMG_HANDLE					hPrivData;
 	/*! Function callbacks */
 	PHYS_HEAP_FUNCTIONS			*psMemFuncs;

 	/*! Array of sub-regions of the heap */
 	PHYS_HEAP_REGION			*pasRegions;
 	IMG_UINT32					ui32NumOfRegions;

 	/*! Refcount */
 	IMG_UINT32					ui32RefCount;
 	/*! Pointer to next physical heap */
 	struct _PHYS_HEAP_		*psNext;
 };

 static PHYS_HEAP *g_psPhysHeapList;

 #if defined(REFCOUNT_DEBUG)
 #define PHYSHEAP_REFCOUNT_PRINT(fmt, ...)	\
 	PVRSRVDebugPrintf(PVR_DBG_WARNING,	\
 			  __FILE__,		\
 			  __LINE__,		\
 			  fmt,			\
 			  __VA_ARGS__)
 #else
 #define PHYSHEAP_REFCOUNT_PRINT(fmt, ...)
 #endif


 PVRSRV_ERROR PhysHeapRegister(PHYS_HEAP_CONFIG *psConfig,
 							  PHYS_HEAP **ppsPhysHeap)
 {
 	PHYS_HEAP *psNew;
 	PHYS_HEAP *psTmp;

 	PVR_DPF_ENTERED;

 	if (psConfig->eType == PHYS_HEAP_TYPE_UNKNOWN)
 	{
 		return PVRSRV_ERROR_INVALID_PARAMS;
 	}

 	/* Check this heap ID isn't already in use */
 	psTmp = g_psPhysHeapList;
 	while (psTmp)
 	{
 		if (psTmp->ui32PhysHeapID == psConfig->ui32PhysHeapID)
 		{
 			return PVRSRV_ERROR_PHYSHEAP_ID_IN_USE;
 		}
 		psTmp = psTmp->psNext;
 	}

 	psNew = OSAllocMem(sizeof(PHYS_HEAP));
 	if (psNew == NULL)
 	{
 		return PVRSRV_ERROR_OUT_OF_MEMORY;
 	}

 	psNew->ui32PhysHeapID = psConfig->ui32PhysHeapID;
 	psNew->eType = psConfig->eType;
 	psNew->psMemFuncs = psConfig->psMemFuncs;
 	psNew->hPrivData = psConfig->hPrivData;
 	psNew->ui32RefCount = 0;
 	psNew->pszPDumpMemspaceName = psConfig->pszPDumpMemspaceName;

 	psNew->pasRegions = psConfig->pasRegions;
 	psNew->ui32NumOfRegions = psConfig->ui32NumOfRegions;

 	psNew->psNext = g_psPhysHeapList;
 	g_psPhysHeapList = psNew;

 	*ppsPhysHeap = psNew;

 	PVR_DPF_RETURN_RC1(PVRSRV_OK, *ppsPhysHeap);
 }

 void PhysHeapUnregister(PHYS_HEAP *psPhysHeap)
 {
 	PVR_DPF_ENTERED1(psPhysHeap);

 #if defined(PVRSRV_FORCE_UNLOAD_IF_BAD_STATE)
 	if (PVRSRVGetPVRSRVData()->eServicesState == PVRSRV_SERVICES_STATE_OK)
 #endif
 	{
 		PVR_ASSERT(psPhysHeap->ui32RefCount == 0);
 	}

 	if (g_psPhysHeapList == psPhysHeap)
 	{
 		g_psPhysHeapList = psPhysHeap->psNext;
 	}
 	else
 	{
 		PHYS_HEAP *psTmp = g_psPhysHeapList;

 		while(psTmp->psNext != psPhysHeap)
 		{
 			psTmp = psTmp->psNext;
 		}
 		psTmp->psNext = psPhysHeap->psNext;
 	}

 	OSFreeMem(psPhysHeap);

 	PVR_DPF_RETURN;
 }

 PVRSRV_ERROR PhysHeapAcquire(IMG_UINT32 ui32PhysHeapID,
 							 PHYS_HEAP **ppsPhysHeap)
 {
 	PHYS_HEAP *psTmp = g_psPhysHeapList;
 	PVRSRV_ERROR eError = PVRSRV_OK;

 	PVR_DPF_ENTERED1(ui32PhysHeapID);

 	while (psTmp)
 	{
 		if (psTmp->ui32PhysHeapID == ui32PhysHeapID)
 		{
 			break;
 		}
 		psTmp = psTmp->psNext;
 	}

 	if (psTmp == NULL)
 	{
 		eError = PVRSRV_ERROR_PHYSHEAP_ID_INVALID;
 	}
 	else
 	{
 		psTmp->ui32RefCount++;
 		PHYSHEAP_REFCOUNT_PRINT("%s: Heap %p, refcount = %d", __FUNCTION__, psTmp, psTmp->ui32RefCount);
 	}

 	*ppsPhysHeap = psTmp;
 	PVR_DPF_RETURN_RC1(eError, *ppsPhysHeap);
 }

 void PhysHeapRelease(PHYS_HEAP *psPhysHeap)
 {
 	PVR_DPF_ENTERED1(psPhysHeap);

 	psPhysHeap->ui32RefCount--;
 	PHYSHEAP_REFCOUNT_PRINT("%s: Heap %p, refcount = %d", __FUNCTION__, psPhysHeap, psPhysHeap->ui32RefCount);

 	PVR_DPF_RETURN;
 }

 PHYS_HEAP_TYPE PhysHeapGetType(PHYS_HEAP *psPhysHeap)
 {
 	return psPhysHeap->eType;
 }

 /*
  * This function will set the psDevPAddr to whatever the system layer
  * has set it for the referenced region.
  * It will not fail if the psDevPAddr is invalid.
  */
 PVRSRV_ERROR PhysHeapRegionGetDevPAddr(PHYS_HEAP *psPhysHeap,
 								IMG_UINT32 ui32RegionId,
 								IMG_DEV_PHYADDR *psDevPAddr)
 {
 	if (ui32RegionId < psPhysHeap->ui32NumOfRegions)
 	{
 		*psDevPAddr = psPhysHeap->pasRegions[ui32RegionId].sCardBase;
 		return PVRSRV_OK;
 	}
 	else
 	{
 		return PVRSRV_ERROR_INVALID_PARAMS;
 	}
 }

 /*
  * This function will set the psCpuPAddr to whatever the system layer
  * has set it for the referenced region.
  * It will not fail if the psCpuPAddr is invalid.
  */
 PVRSRV_ERROR PhysHeapRegionGetCpuPAddr(PHYS_HEAP *psPhysHeap,
 								IMG_UINT32 ui32RegionId,
 								IMG_CPU_PHYADDR *psCpuPAddr)
 {
 	if (ui32RegionId < psPhysHeap->ui32NumOfRegions)
 	{
 		*psCpuPAddr = psPhysHeap->pasRegions[ui32RegionId].sStartAddr;
 		return PVRSRV_OK;
 	}
 	else
 	{
 		return PVRSRV_ERROR_INVALID_PARAMS;
 	}
 }

 PVRSRV_ERROR PhysHeapRegionGetSize(PHYS_HEAP *psPhysHeap,
 								   IMG_UINT32 ui32RegionId,
 								   IMG_UINT64 *puiSize)
 {
 	if (ui32RegionId < psPhysHeap->ui32NumOfRegions)
 	{
 		*puiSize = psPhysHeap->pasRegions[ui32RegionId].uiSize;
 		return PVRSRV_OK;
 	}
 	else
 	{
 		return PVRSRV_ERROR_INVALID_PARAMS;
 	}
 }

 void PhysHeapCpuPAddrToDevPAddr(PHYS_HEAP *psPhysHeap,
 								IMG_UINT32 ui32NumOfAddr,
 								IMG_DEV_PHYADDR *psDevPAddr,
 								IMG_CPU_PHYADDR *psCpuPAddr)
 {
 	psPhysHeap->psMemFuncs->pfnCpuPAddrToDevPAddr(psPhysHeap->hPrivData,
 												 ui32NumOfAddr,
 												 psDevPAddr,
 												 psCpuPAddr);
 }

 void PhysHeapDevPAddrToCpuPAddr(PHYS_HEAP *psPhysHeap,
 								IMG_UINT32 ui32NumOfAddr,
 								IMG_CPU_PHYADDR *psCpuPAddr,
 								IMG_DEV_PHYADDR *psDevPAddr)
 {
 	psPhysHeap->psMemFuncs->pfnDevPAddrToCpuPAddr(psPhysHeap->hPrivData,
 												 ui32NumOfAddr,
 												 psCpuPAddr,
 												 psDevPAddr);
 }

 IMG_UINT32 PhysHeapGetRegionId(PHYS_HEAP *psPhysHeap,
 								PVRSRV_MEMALLOCFLAGS_T uiAllocFlags)
 {
 	if (psPhysHeap->psMemFuncs->pfnGetRegionId == NULL)
 	{
 		return 0;
 	}

 	return psPhysHeap->psMemFuncs->pfnGetRegionId(psPhysHeap->hPrivData,
 												 uiAllocFlags);
 }

 IMG_CHAR *PhysHeapPDumpMemspaceName(PHYS_HEAP *psPhysHeap)
 {
 	return psPhysHeap->pszPDumpMemspaceName;
 }

 PVRSRV_ERROR PhysHeapInit(void)
 {
 	g_psPhysHeapList = NULL;

 	return PVRSRV_OK;
 }

 PVRSRV_ERROR PhysHeapDeinit(void)
 {
 	PVR_ASSERT(g_psPhysHeapList == NULL);

 	return PVRSRV_OK;
 }

 IMG_UINT32 PhysHeapNumberOfRegions(PHYS_HEAP *psPhysHeap)
 {
 	return psPhysHeap->ui32NumOfRegions;
 }
	/************************************************************************/ /!
	@File physheap.c
	@Title Physical heap management
	@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
	@Description Management functions for the physical heap(s). A heap contains
	all the information required by services when using memory from
	that heap (such as CPU <> Device physical address translation).
	A system must register one heap but can have more then one which
	is why a heap must register with a (system) unique ID.
	@License Dual MIT/GPLv2

	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.

	Alternatively, the contents of this file may be used under the terms of
	the GNU General Public License Version 2 ("GPL") in which case the provisions
	of GPL are applicable instead of those above.

	If you wish to allow use of your version of this file only under the terms of
	GPL, and not to allow others to use your version of this file under the terms
	of the MIT license, indicate your decision by deleting the provisions above
	and replace them with the notice and other provisions required by GPL as set
	out in the file called "GPL-COPYING" included in this distribution. If you do
	not delete the provisions above, a recipient may use your version of this file
	under the terms of either the MIT license or GPL.

	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 "img_types.h"
	#include "physheap.h"
	#include "allocmem.h"
	#include "pvr_debug.h"
	#include "osfunc.h"
	#include "pvrsrv.h"

	struct _PHYS_HEAP_
	{
	/! ID of this physical memory heap /
	IMG_UINT32 ui32PhysHeapID;
	/! The type of this heap /
	PHYS_HEAP_TYPE eType;

	/! PDump name of this physical memory heap /
	IMG_CHAR *pszPDumpMemspaceName;
	/! Private data for the translate routines /
	IMG_HANDLE hPrivData;
	/! Function callbacks /
	PHYS_HEAP_FUNCTIONS *psMemFuncs;

	/! Array of sub-regions of the heap /
	PHYS_HEAP_REGION *pasRegions;
	IMG_UINT32 ui32NumOfRegions;

	/! Refcount /
	IMG_UINT32 ui32RefCount;
	/! Pointer to next physical heap /
	struct _PHYS_HEAP_ *psNext;
	};

	static PHYS_HEAP *g_psPhysHeapList;

	#if defined(REFCOUNT_DEBUG)
	#define PHYSHEAP_REFCOUNT_PRINT(fmt, ...) \
	PVRSRVDebugPrintf(PVR_DBG_WARNING, \
	__FILE__, \
	__LINE__, \
	fmt, \
	__VA_ARGS__)
	#else
	#define PHYSHEAP_REFCOUNT_PRINT(fmt, ...)
	#endif


	PVRSRV_ERROR PhysHeapRegister(PHYS_HEAP_CONFIG *psConfig,
	PHYS_HEAP **ppsPhysHeap)
	{
	PHYS_HEAP *psNew;
	PHYS_HEAP *psTmp;

	PVR_DPF_ENTERED;

	if (psConfig->eType == PHYS_HEAP_TYPE_UNKNOWN)
	{
	return PVRSRV_ERROR_INVALID_PARAMS;
	}

	/* Check this heap ID isn't already in use */
	psTmp = g_psPhysHeapList;
	while (psTmp)
	{
	if (psTmp->ui32PhysHeapID == psConfig->ui32PhysHeapID)
	{
	return PVRSRV_ERROR_PHYSHEAP_ID_IN_USE;
	}
	psTmp = psTmp->psNext;
	}

	psNew = OSAllocMem(sizeof(PHYS_HEAP));
	if (psNew == NULL)
	{
	return PVRSRV_ERROR_OUT_OF_MEMORY;
	}

	psNew->ui32PhysHeapID = psConfig->ui32PhysHeapID;
	psNew->eType = psConfig->eType;
	psNew->psMemFuncs = psConfig->psMemFuncs;
	psNew->hPrivData = psConfig->hPrivData;
	psNew->ui32RefCount = 0;
	psNew->pszPDumpMemspaceName = psConfig->pszPDumpMemspaceName;

	psNew->pasRegions = psConfig->pasRegions;
	psNew->ui32NumOfRegions = psConfig->ui32NumOfRegions;

	psNew->psNext = g_psPhysHeapList;
	g_psPhysHeapList = psNew;

	*ppsPhysHeap = psNew;

	PVR_DPF_RETURN_RC1(PVRSRV_OK, *ppsPhysHeap);
	}

	void PhysHeapUnregister(PHYS_HEAP *psPhysHeap)
	{
	PVR_DPF_ENTERED1(psPhysHeap);

	#if defined(PVRSRV_FORCE_UNLOAD_IF_BAD_STATE)
	if (PVRSRVGetPVRSRVData()->eServicesState == PVRSRV_SERVICES_STATE_OK)
	#endif
	{
	PVR_ASSERT(psPhysHeap->ui32RefCount == 0);
	}

	if (g_psPhysHeapList == psPhysHeap)
	{
	g_psPhysHeapList = psPhysHeap->psNext;
	}
	else
	{
	PHYS_HEAP *psTmp = g_psPhysHeapList;

	while(psTmp->psNext != psPhysHeap)
	{
	psTmp = psTmp->psNext;
	}
	psTmp->psNext = psPhysHeap->psNext;
	}

	OSFreeMem(psPhysHeap);

	PVR_DPF_RETURN;
	}

	PVRSRV_ERROR PhysHeapAcquire(IMG_UINT32 ui32PhysHeapID,
	PHYS_HEAP **ppsPhysHeap)
	{
	PHYS_HEAP *psTmp = g_psPhysHeapList;
	PVRSRV_ERROR eError = PVRSRV_OK;

	PVR_DPF_ENTERED1(ui32PhysHeapID);

	while (psTmp)
	{
	if (psTmp->ui32PhysHeapID == ui32PhysHeapID)
	{
	break;
	}
	psTmp = psTmp->psNext;
	}

	if (psTmp == NULL)
	{
	eError = PVRSRV_ERROR_PHYSHEAP_ID_INVALID;
	}
	else
	{
	psTmp->ui32RefCount++;
	PHYSHEAP_REFCOUNT_PRINT("%s: Heap %p, refcount = %d", __FUNCTION__, psTmp, psTmp->ui32RefCount);
	}

	*ppsPhysHeap = psTmp;
	PVR_DPF_RETURN_RC1(eError, *ppsPhysHeap);
	}

	void PhysHeapRelease(PHYS_HEAP *psPhysHeap)
	{
	PVR_DPF_ENTERED1(psPhysHeap);

	psPhysHeap->ui32RefCount--;
	PHYSHEAP_REFCOUNT_PRINT("%s: Heap %p, refcount = %d", __FUNCTION__, psPhysHeap, psPhysHeap->ui32RefCount);

	PVR_DPF_RETURN;
	}

	PHYS_HEAP_TYPE PhysHeapGetType(PHYS_HEAP *psPhysHeap)
	{
	return psPhysHeap->eType;
	}

	/*
	* This function will set the psDevPAddr to whatever the system layer
	* has set it for the referenced region.
	* It will not fail if the psDevPAddr is invalid.
	*/
	PVRSRV_ERROR PhysHeapRegionGetDevPAddr(PHYS_HEAP *psPhysHeap,
	IMG_UINT32 ui32RegionId,
	IMG_DEV_PHYADDR *psDevPAddr)
	{
	if (ui32RegionId < psPhysHeap->ui32NumOfRegions)
	{
	*psDevPAddr = psPhysHeap->pasRegions[ui32RegionId].sCardBase;
	return PVRSRV_OK;
	}
	else
	{
	return PVRSRV_ERROR_INVALID_PARAMS;
	}
	}

	/*
	* This function will set the psCpuPAddr to whatever the system layer
	* has set it for the referenced region.
	* It will not fail if the psCpuPAddr is invalid.
	*/
	PVRSRV_ERROR PhysHeapRegionGetCpuPAddr(PHYS_HEAP *psPhysHeap,
	IMG_UINT32 ui32RegionId,
	IMG_CPU_PHYADDR *psCpuPAddr)
	{
	if (ui32RegionId < psPhysHeap->ui32NumOfRegions)
	{
	*psCpuPAddr = psPhysHeap->pasRegions[ui32RegionId].sStartAddr;
	return PVRSRV_OK;
	}
	else
	{
	return PVRSRV_ERROR_INVALID_PARAMS;
	}
	}

	PVRSRV_ERROR PhysHeapRegionGetSize(PHYS_HEAP *psPhysHeap,
	IMG_UINT32 ui32RegionId,
	IMG_UINT64 *puiSize)
	{
	if (ui32RegionId < psPhysHeap->ui32NumOfRegions)
	{
	*puiSize = psPhysHeap->pasRegions[ui32RegionId].uiSize;
	return PVRSRV_OK;
	}
	else
	{
	return PVRSRV_ERROR_INVALID_PARAMS;
	}
	}

	void PhysHeapCpuPAddrToDevPAddr(PHYS_HEAP *psPhysHeap,
	IMG_UINT32 ui32NumOfAddr,
	IMG_DEV_PHYADDR *psDevPAddr,
	IMG_CPU_PHYADDR *psCpuPAddr)
	{
	psPhysHeap->psMemFuncs->pfnCpuPAddrToDevPAddr(psPhysHeap->hPrivData,
	ui32NumOfAddr,
	psDevPAddr,
	psCpuPAddr);
	}

	void PhysHeapDevPAddrToCpuPAddr(PHYS_HEAP *psPhysHeap,
	IMG_UINT32 ui32NumOfAddr,
	IMG_CPU_PHYADDR *psCpuPAddr,
	IMG_DEV_PHYADDR *psDevPAddr)
	{
	psPhysHeap->psMemFuncs->pfnDevPAddrToCpuPAddr(psPhysHeap->hPrivData,
	ui32NumOfAddr,
	psCpuPAddr,
	psDevPAddr);
	}

	IMG_UINT32 PhysHeapGetRegionId(PHYS_HEAP *psPhysHeap,
	PVRSRV_MEMALLOCFLAGS_T uiAllocFlags)
	{
	if (psPhysHeap->psMemFuncs->pfnGetRegionId == NULL)
	{
	return 0;
	}

	return psPhysHeap->psMemFuncs->pfnGetRegionId(psPhysHeap->hPrivData,
	uiAllocFlags);
	}

	IMG_CHAR PhysHeapPDumpMemspaceName(PHYS_HEAP psPhysHeap)
	{
	return psPhysHeap->pszPDumpMemspaceName;
	}

	PVRSRV_ERROR PhysHeapInit(void)
	{
	g_psPhysHeapList = NULL;

	return PVRSRV_OK;
	}

	PVRSRV_ERROR PhysHeapDeinit(void)
	{
	PVR_ASSERT(g_psPhysHeapList == NULL);

	return PVRSRV_OK;
	}

	IMG_UINT32 PhysHeapNumberOfRegions(PHYS_HEAP *psPhysHeap)
	{
	return psPhysHeap->ui32NumOfRegions;
	}