services/include/physheap.h

/*************************************************************************/ /*!
@File
@Title          Physical heap management header
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@Description    Defines the interface for the physical heap management
@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 "img_types.h"
#include "pvrsrv_error.h"
#include "pvrsrv_memallocflags.h"

#ifndef _PHYSHEAP_H_
#define _PHYSHEAP_H_

typedef struct _PHYS_HEAP_ PHYS_HEAP;

typedef void (*CpuPAddrToDevPAddr)(IMG_HANDLE hPrivData,
								   IMG_UINT32 ui32NumOfAddr,
								   IMG_DEV_PHYADDR *psDevPAddr,
								   IMG_CPU_PHYADDR *psCpuPAddr);

typedef void (*DevPAddrToCpuPAddr)(IMG_HANDLE hPrivData,
								   IMG_UINT32 ui32NumOfAddr,
								   IMG_CPU_PHYADDR *psCpuPAddr,
								   IMG_DEV_PHYADDR *psDevPAddr);

typedef IMG_UINT32 (*GetRegionId)(IMG_HANDLE hPrivData,
								   PVRSRV_MEMALLOCFLAGS_T uiAllocationFlags);

typedef struct _PHYS_HEAP_FUNCTIONS_
{
	/*! Translate CPU physical address to device physical address */
	CpuPAddrToDevPAddr	pfnCpuPAddrToDevPAddr;
	/*! Translate device physical address to CPU physical address */
	DevPAddrToCpuPAddr	pfnDevPAddrToCpuPAddr;
	/*! Return id of heap region to allocate from */
	GetRegionId			pfnGetRegionId;
} PHYS_HEAP_FUNCTIONS;

typedef enum _PHYS_HEAP_TYPE_
{
	PHYS_HEAP_TYPE_UNKNOWN = 0,
	PHYS_HEAP_TYPE_UMA,
	PHYS_HEAP_TYPE_LMA,
	PHYS_HEAP_TYPE_DMA,
#if defined(SUPPORT_WRAP_EXTMEMOBJECT)
	PHYS_HEAP_TYPE_WRAP,
#endif
} PHYS_HEAP_TYPE;

typedef struct _PHYS_HEAP_REGION_
{
	IMG_CPU_PHYADDR			sStartAddr;
	IMG_DEV_PHYADDR			sCardBase;
	IMG_UINT64				uiSize;

	IMG_HANDLE				hPrivData;
} PHYS_HEAP_REGION;

typedef struct _PHYS_HEAP_CONFIG_
{
	IMG_UINT32				ui32PhysHeapID;
	PHYS_HEAP_TYPE			eType;
	IMG_CHAR				*pszPDumpMemspaceName;
	PHYS_HEAP_FUNCTIONS		*psMemFuncs;

	PHYS_HEAP_REGION		*pasRegions;
	IMG_UINT32				ui32NumOfRegions;
	IMG_BOOL				bDynAlloc;

	IMG_HANDLE				hPrivData;
} PHYS_HEAP_CONFIG;

PVRSRV_ERROR PhysHeapRegister(PHYS_HEAP_CONFIG *psConfig,
							  PHYS_HEAP **ppsPhysHeap);

void PhysHeapUnregister(PHYS_HEAP *psPhysHeap);

PVRSRV_ERROR PhysHeapAcquire(IMG_UINT32 ui32PhysHeapID,
							 PHYS_HEAP **ppsPhysHeap);

void PhysHeapRelease(PHYS_HEAP *psPhysHeap);

PHYS_HEAP_TYPE PhysHeapGetType(PHYS_HEAP *psPhysHeap);

PVRSRV_ERROR PhysHeapRegionGetCpuPAddr(PHYS_HEAP *psPhysHeap,
									   IMG_UINT32 ui32RegionId,
								IMG_CPU_PHYADDR *psCpuPAddr);


PVRSRV_ERROR PhysHeapRegionGetSize(PHYS_HEAP *psPhysHeap,
							IMG_UINT32 ui32RegionId,
						     IMG_UINT64 *puiSize);

PVRSRV_ERROR PhysHeapRegionGetDevPAddr(PHYS_HEAP *psPhysHeap,
									   IMG_UINT32 ui32RegionId,
							 		   IMG_DEV_PHYADDR *psDevPAddr);

PVRSRV_ERROR PhysHeapRegionGetSize(PHYS_HEAP *psPhysHeap,
								   IMG_UINT32 ui32RegionId,
						     	   IMG_UINT64 *puiSize);

IMG_UINT32 PhysHeapNumberOfRegions(PHYS_HEAP *psPhysHeap);

void PhysHeapCpuPAddrToDevPAddr(PHYS_HEAP *psPhysHeap,
								IMG_UINT32 ui32NumOfAddr,
								IMG_DEV_PHYADDR *psDevPAddr,
								IMG_CPU_PHYADDR *psCpuPAddr);

void PhysHeapDevPAddrToCpuPAddr(PHYS_HEAP *psPhysHeap,
								IMG_UINT32 ui32NumOfAddr,
								IMG_CPU_PHYADDR *psCpuPAddr,
								IMG_DEV_PHYADDR *psDevPAddr);

IMG_UINT32 PhysHeapGetRegionId(PHYS_HEAP *psPhysHeap,
						PVRSRV_MEMALLOCFLAGS_T uiAllocFlags);


IMG_CHAR *PhysHeapPDumpMemspaceName(PHYS_HEAP *psPhysHeap);

PVRSRV_ERROR PhysHeapInit(void);
PVRSRV_ERROR PhysHeapDeinit(void);

#endif /* _PHYSHEAP_H_ */