1/* 2 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 30#ifndef _IOKIT_KERNELINTERNAL_H 31#define _IOKIT_KERNELINTERNAL_H 32 33#include <sys/cdefs.h> 34 35__BEGIN_DECLS 36 37#include <vm/pmap.h> 38#include <mach/memory_object_types.h> 39#include <device/device_port.h> 40 41typedef kern_return_t (*IOIteratePageableMapsCallback)(vm_map_t map, void * ref); 42 43void IOLibInit(void); 44kern_return_t IOIteratePageableMaps(vm_size_t size, 45 IOIteratePageableMapsCallback callback, void * ref); 46vm_map_t IOPageableMapForAddress(vm_address_t address); 47 48kern_return_t 49IOMemoryDescriptorMapMemEntry(vm_map_t map, ipc_port_t entry, IOOptionBits options, bool pageable, 50 mach_vm_size_t offset, mach_vm_address_t * address, mach_vm_size_t length); 51 52SInt32 OSKernelStackRemaining( void ); 53 54mach_vm_address_t 55IOKernelAllocateContiguous(mach_vm_size_t size, mach_vm_size_t alignment); 56void 57IOKernelFreeContiguous(mach_vm_address_t address, mach_vm_size_t size); 58 59extern vm_size_t debug_iomallocpageable_size; 60 61// osfmk/device/iokit_rpc.c 62extern kern_return_t IOMapPages(vm_map_t map, mach_vm_address_t va, mach_vm_address_t pa, 63 mach_vm_size_t length, unsigned int mapFlags); 64extern kern_return_t IOUnmapPages(vm_map_t map, mach_vm_address_t va, mach_vm_size_t length); 65 66extern kern_return_t IOProtectCacheMode(vm_map_t map, mach_vm_address_t va, 67 mach_vm_size_t length, unsigned int mapFlags); 68 69extern ppnum_t IOGetLastPageNumber(void); 70 71extern ppnum_t gIOLastPage; 72 73/* Physical to physical copy (ints must be disabled) */ 74extern void bcopy_phys(addr64_t from, addr64_t to, int size); 75 76__END_DECLS 77 78// Used for dedicated communications for IODMACommand 79enum { 80 kIOMDWalkSegments = 0x00000001, 81 kIOMDFirstSegment = 0x00000002 | kIOMDWalkSegments, 82 kIOMDGetCharacteristics = 0x00000004, 83 kIOMDLastDMACommandOperation 84}; 85struct IOMDDMACharacteristics { 86 UInt64 fLength; 87 UInt32 fSGCount; 88 UInt32 fPages; 89 UInt32 fPageAlign; 90 ppnum_t fHighestPage; 91 IODirection fDirection; 92 UInt8 fIsMapped, fIsPrepared; 93}; 94struct IOMDDMAWalkSegmentArgs { 95 UInt64 fOffset; // Input/Output offset 96 UInt64 fIOVMAddr, fLength; // Output variables 97 UInt8 fMapped; // Input Variable, Require mapped IOVMA 98}; 99typedef UInt8 IOMDDMAWalkSegmentState[128]; 100 101struct IODMACommandInternal 102{ 103 IOMDDMAWalkSegmentState fState; 104 IOMDDMACharacteristics fMDSummary; 105 106 UInt64 fPreparedOffset; 107 UInt64 fPreparedLength; 108 109 UInt8 fCursor; 110 UInt8 fCheckAddressing; 111 UInt8 fIterateOnly; 112 UInt8 fMisaligned; 113 UInt8 fCopyContig; 114 UInt8 fPrepared; 115 UInt8 fDoubleBuffer; 116 UInt8 fNewMD; 117 118 ppnum_t fCopyPageAlloc; 119 ppnum_t fCopyPageCount; 120 ppnum_t fNextRemapIndex; 121 addr64_t fCopyNext; 122 123 class IOBufferMemoryDescriptor * fCopyMD; 124 125 // IODMAEventSource use 126 IOReturn fStatus; 127 UInt64 fActualByteCount; 128}; 129 130extern "C" struct timeval gIOLastSleepTime; 131extern "C" struct timeval gIOLastWakeTime; 132 133extern "C" void IOKitResetTime( void ); 134extern "C" void IOKitInitializeTime( void ); 135 136extern "C" OSString * IOCopyLogNameForPID(int pid); 137 138#endif /* ! _IOKIT_KERNELINTERNAL_H */ 139