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/**********************************************************************
*
* Copyright (C) Imagination Technologies Ltd. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful but, except
* as otherwise stated in writing, without any warranty; without even the
* implied warranty of merchantability or fitness for a particular purpose.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Contact Information:
* Imagination Technologies Ltd. <gpl-support@imgtec.com>
* Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
*
******************************************************************************/
#ifndef __IMG_LINUX_MM_H__
#define __IMG_LINUX_MM_H__
#include <linux/version.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38))
#ifndef AUTOCONF_INCLUDED
#include <linux/config.h>
#endif
#endif
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/list.h>
#include <asm/io.h>
#define PHYS_TO_PFN(phys) ((phys) >> PAGE_SHIFT)
#define PFN_TO_PHYS(pfn) ((pfn) << PAGE_SHIFT)
#define RANGE_TO_PAGES(range) (((range) + (PAGE_SIZE - 1)) >> PAGE_SHIFT)
#define ADDR_TO_PAGE_OFFSET(addr) (((unsigned long)(addr)) & (PAGE_SIZE - 1))
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10))
#define REMAP_PFN_RANGE(vma, addr, pfn, size, prot) remap_pfn_range(vma, addr, pfn, size, prot)
#else
#define REMAP_PFN_RANGE(vma, addr, pfn, size, prot) remap_page_range(vma, addr, PFN_TO_PHYS(pfn), size, prot)
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12))
#define IO_REMAP_PFN_RANGE(vma, addr, pfn, size, prot) io_remap_pfn_range(vma, addr, pfn, size, prot)
#else
#define IO_REMAP_PFN_RANGE(vma, addr, pfn, size, prot) io_remap_page_range(vma, addr, PFN_TO_PHYS(pfn), size, prot)
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15))
#define VM_INSERT_PAGE(vma, addr, page) vm_insert_page(vma, addr, page)
#else
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10))
#define VM_INSERT_PAGE(vma, addr, page) remap_pfn_range(vma, addr, page_to_pfn(page), PAGE_SIZE, vma->vm_page_prot);
#else
#define VM_INSERT_PAGE(vma, addr, page) remap_page_range(vma, addr, page_to_phys(page), PAGE_SIZE, vma->vm_page_prot);
#endif
#endif
static inline IMG_UINT32 VMallocToPhys(IMG_VOID *pCpuVAddr)
{
return (page_to_phys(vmalloc_to_page(pCpuVAddr)) + ADDR_TO_PAGE_OFFSET(pCpuVAddr));
}
typedef enum {
LINUX_MEM_AREA_IOREMAP,
LINUX_MEM_AREA_EXTERNAL_KV,
LINUX_MEM_AREA_IO,
LINUX_MEM_AREA_VMALLOC,
LINUX_MEM_AREA_ALLOC_PAGES,
LINUX_MEM_AREA_SUB_ALLOC,
LINUX_MEM_AREA_TYPE_COUNT
}LINUX_MEM_AREA_TYPE;
typedef struct _LinuxMemArea LinuxMemArea;
struct _LinuxMemArea {
LINUX_MEM_AREA_TYPE eAreaType;
union _uData
{
struct _sIORemap
{
IMG_CPU_PHYADDR CPUPhysAddr;
IMG_VOID *pvIORemapCookie;
}sIORemap;
struct _sExternalKV
{
IMG_BOOL bPhysContig;
union {
IMG_SYS_PHYADDR SysPhysAddr;
IMG_SYS_PHYADDR *pSysPhysAddr;
} uPhysAddr;
IMG_VOID *pvExternalKV;
}sExternalKV;
struct _sIO
{
IMG_CPU_PHYADDR CPUPhysAddr;
}sIO;
struct _sVmalloc
{
IMG_VOID *pvVmallocAddress;
}sVmalloc;
struct _sPageList
{
struct page **pvPageList;
IMG_HANDLE hBlockPageList;
}sPageList;
struct _sSubAlloc
{
LinuxMemArea *psParentLinuxMemArea;
IMG_UINT32 ui32ByteOffset;
}sSubAlloc;
}uData;
IMG_UINT32 ui32ByteSize;
IMG_UINT32 ui32AreaFlags;
IMG_BOOL bMMapRegistered;
IMG_BOOL bNeedsCacheInvalidate;
struct list_head sMMapItem;
struct list_head sMMapOffsetStructList;
};
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17))
typedef kmem_cache_t LinuxKMemCache;
#else
typedef struct kmem_cache LinuxKMemCache;
#endif
PVRSRV_ERROR LinuxMMInit(IMG_VOID);
IMG_VOID LinuxMMCleanup(IMG_VOID);
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
#define KMallocWrapper(ui32ByteSize, uFlags) _KMallocWrapper(ui32ByteSize, uFlags, __FILE__, __LINE__)
#else
#define KMallocWrapper(ui32ByteSize, uFlags) _KMallocWrapper(ui32ByteSize, uFlags, NULL, 0)
#endif
IMG_VOID *_KMallocWrapper(IMG_UINT32 ui32ByteSize, gfp_t uFlags, IMG_CHAR *szFileName, IMG_UINT32 ui32Line);
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
#define KFreeWrapper(pvCpuVAddr) _KFreeWrapper(pvCpuVAddr, __FILE__, __LINE__)
#else
#define KFreeWrapper(pvCpuVAddr) _KFreeWrapper(pvCpuVAddr, NULL, 0)
#endif
IMG_VOID _KFreeWrapper(IMG_VOID *pvCpuVAddr, IMG_CHAR *pszFileName, IMG_UINT32 ui32Line);
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
#define VMallocWrapper(ui32Bytes, ui32AllocFlags) _VMallocWrapper(ui32Bytes, ui32AllocFlags, __FILE__, __LINE__)
#else
#define VMallocWrapper(ui32Bytes, ui32AllocFlags) _VMallocWrapper(ui32Bytes, ui32AllocFlags, NULL, 0)
#endif
IMG_VOID *_VMallocWrapper(IMG_UINT32 ui32Bytes, IMG_UINT32 ui32AllocFlags, IMG_CHAR *pszFileName, IMG_UINT32 ui32Line);
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
#define VFreeWrapper(pvCpuVAddr) _VFreeWrapper(pvCpuVAddr, __FILE__, __LINE__)
#else
#define VFreeWrapper(pvCpuVAddr) _VFreeWrapper(pvCpuVAddr, NULL, 0)
#endif
IMG_VOID _VFreeWrapper(IMG_VOID *pvCpuVAddr, IMG_CHAR *pszFileName, IMG_UINT32 ui32Line);
LinuxMemArea *NewVMallocLinuxMemArea(IMG_UINT32 ui32Bytes, IMG_UINT32 ui32AreaFlags);
IMG_VOID FreeVMallocLinuxMemArea(LinuxMemArea *psLinuxMemArea);
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
#define IORemapWrapper(BasePAddr, ui32Bytes, ui32MappingFlags) \
_IORemapWrapper(BasePAddr, ui32Bytes, ui32MappingFlags, __FILE__, __LINE__)
#else
#define IORemapWrapper(BasePAddr, ui32Bytes, ui32MappingFlags) \
_IORemapWrapper(BasePAddr, ui32Bytes, ui32MappingFlags, NULL, 0)
#endif
IMG_VOID *_IORemapWrapper(IMG_CPU_PHYADDR BasePAddr,
IMG_UINT32 ui32Bytes,
IMG_UINT32 ui32MappingFlags,
IMG_CHAR *pszFileName,
IMG_UINT32 ui32Line);
LinuxMemArea *NewIORemapLinuxMemArea(IMG_CPU_PHYADDR BasePAddr, IMG_UINT32 ui32Bytes, IMG_UINT32 ui32AreaFlags);
IMG_VOID FreeIORemapLinuxMemArea(LinuxMemArea *psLinuxMemArea);
LinuxMemArea *NewExternalKVLinuxMemArea(IMG_SYS_PHYADDR *pBasePAddr, IMG_VOID *pvCPUVAddr, IMG_UINT32 ui32Bytes, IMG_BOOL bPhysContig, IMG_UINT32 ui32AreaFlags);
IMG_VOID FreeExternalKVLinuxMemArea(LinuxMemArea *psLinuxMemArea);
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
#define IOUnmapWrapper(pvIORemapCookie) \
_IOUnmapWrapper(pvIORemapCookie, __FILE__, __LINE__)
#else
#define IOUnmapWrapper(pvIORemapCookie) \
_IOUnmapWrapper(pvIORemapCookie, NULL, 0)
#endif
IMG_VOID _IOUnmapWrapper(IMG_VOID *pvIORemapCookie, IMG_CHAR *pszFileName, IMG_UINT32 ui32Line);
struct page *LinuxMemAreaOffsetToPage(LinuxMemArea *psLinuxMemArea, IMG_UINT32 ui32ByteOffset);
LinuxKMemCache *KMemCacheCreateWrapper(IMG_CHAR *pszName, size_t Size, size_t Align, IMG_UINT32 ui32Flags);
IMG_VOID KMemCacheDestroyWrapper(LinuxKMemCache *psCache);
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
#define KMemCacheAllocWrapper(psCache, Flags) _KMemCacheAllocWrapper(psCache, Flags, __FILE__, __LINE__)
#else
#define KMemCacheAllocWrapper(psCache, Flags) _KMemCacheAllocWrapper(psCache, Flags, NULL, 0)
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14))
IMG_VOID *_KMemCacheAllocWrapper(LinuxKMemCache *psCache, gfp_t Flags, IMG_CHAR *pszFileName, IMG_UINT32 ui32Line);
#else
IMG_VOID *_KMemCacheAllocWrapper(LinuxKMemCache *psCache, int Flags, IMG_CHAR *pszFileName, IMG_UINT32 ui32Line);
#endif
#if defined(DEBUG_LINUX_MEMORY_ALLOCATIONS)
#define KMemCacheFreeWrapper(psCache, pvObject) _KMemCacheFreeWrapper(psCache, pvObject, __FILE__, __LINE__)
#else
#define KMemCacheFreeWrapper(psCache, pvObject) _KMemCacheFreeWrapper(psCache, pvObject, NULL, 0)
#endif
IMG_VOID _KMemCacheFreeWrapper(LinuxKMemCache *psCache, IMG_VOID *pvObject, IMG_CHAR *pszFileName, IMG_UINT32 ui32Line);
const IMG_CHAR *KMemCacheNameWrapper(LinuxKMemCache *psCache);
LinuxMemArea *NewIOLinuxMemArea(IMG_CPU_PHYADDR BasePAddr, IMG_UINT32 ui32Bytes, IMG_UINT32 ui32AreaFlags);
IMG_VOID FreeIOLinuxMemArea(LinuxMemArea *psLinuxMemArea);
LinuxMemArea *NewAllocPagesLinuxMemArea(IMG_UINT32 ui32Bytes, IMG_UINT32 ui32AreaFlags);
IMG_VOID FreeAllocPagesLinuxMemArea(LinuxMemArea *psLinuxMemArea);
LinuxMemArea *NewSubLinuxMemArea(LinuxMemArea *psParentLinuxMemArea,
IMG_UINT32 ui32ByteOffset,
IMG_UINT32 ui32Bytes);
IMG_VOID LinuxMemAreaDeepFree(LinuxMemArea *psLinuxMemArea);
#if defined(LINUX_MEM_AREAS_DEBUG)
IMG_VOID LinuxMemAreaRegister(LinuxMemArea *psLinuxMemArea);
#else
#define LinuxMemAreaRegister(X)
#endif
IMG_VOID *LinuxMemAreaToCpuVAddr(LinuxMemArea *psLinuxMemArea);
IMG_CPU_PHYADDR LinuxMemAreaToCpuPAddr(LinuxMemArea *psLinuxMemArea, IMG_UINT32 ui32ByteOffset);
#define LinuxMemAreaToCpuPFN(psLinuxMemArea, ui32ByteOffset) PHYS_TO_PFN(LinuxMemAreaToCpuPAddr(psLinuxMemArea, ui32ByteOffset).uiAddr)
IMG_BOOL LinuxMemAreaPhysIsContig(LinuxMemArea *psLinuxMemArea);
static inline LinuxMemArea *
LinuxMemAreaRoot(LinuxMemArea *psLinuxMemArea)
{
if(psLinuxMemArea->eAreaType == LINUX_MEM_AREA_SUB_ALLOC)
{
return psLinuxMemArea->uData.sSubAlloc.psParentLinuxMemArea;
}
else
{
return psLinuxMemArea;
}
}
static inline LINUX_MEM_AREA_TYPE
LinuxMemAreaRootType(LinuxMemArea *psLinuxMemArea)
{
return LinuxMemAreaRoot(psLinuxMemArea)->eAreaType;
}
const IMG_CHAR *LinuxMemAreaTypeToString(LINUX_MEM_AREA_TYPE eMemAreaType);
#if defined(DEBUG) || defined(DEBUG_LINUX_MEM_AREAS)
const IMG_CHAR *HAPFlagsToString(IMG_UINT32 ui32Flags);
#endif
#endif
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