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--- xnu/xnu-12377.101.15/iokit/Kernel/IOKitKernelInternal.h
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-/*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-
-
-#ifndef _IOKIT_KERNELINTERNAL_H
-#define _IOKIT_KERNELINTERNAL_H
-
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-
-#include <vm/vm_pageout.h>
-#include <mach/memory_object_types.h>
-#include <device/device_port.h>
-#include <IOKit/IODMACommand.h>
-#include <IOKit/IOKitServer.h>
-#include <kern/socd_client.h>
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-typedef kern_return_t (*IOIteratePageableMapsCallback)(vm_map_t map, void * ref);
-
-void IOLibInit(void);
-kern_return_t IOIteratePageableMaps(vm_size_t size,
- IOIteratePageableMapsCallback callback, void * ref);
-vm_map_t IOPageableMapForAddress(uintptr_t address);
-
-struct IOMemoryDescriptorMapAllocRef {
- vm_map_t map;
- mach_vm_address_t mapped;
- mach_vm_size_t size;
- vm_prot_t prot;
- vm_tag_t tag;
- IOOptionBits options;
-};
-
-kern_return_t
-IOMemoryDescriptorMapAlloc(vm_map_t map, void * ref);
-
-
-mach_vm_address_t
-IOKernelAllocateWithPhysicalRestrict(
- kalloc_heap_t kheap,
- mach_vm_size_t size,
- mach_vm_address_t maxPhys,
- mach_vm_size_t alignment,
- bool contiguous,
- bool noSoftLimit);
-void
-IOKernelFreePhysical(
- kalloc_heap_t kheap,
- mach_vm_address_t address,
- mach_vm_size_t size);
-
-#if IOTRACKING
-IOReturn
-IOMemoryMapTracking(IOTrackingUser * tracking, task_t * task,
- mach_vm_address_t * address, mach_vm_size_t * size);
-#endif /* IOTRACKING */
-
-extern vm_size_t debug_iomallocpageable_size;
-
-extern ppnum_t gIOLastPage;
-
-extern IOSimpleLock * gIOPageAllocLock;
-extern queue_head_t gIOPageAllocList;
-
-/* Physical to physical copy (ints must be disabled) */
-extern void bcopy_phys(addr64_t from, addr64_t to, vm_size_t size);
-#if defined (__arm64__)
-extern void bcopy_phys_with_options(addr64_t from, addr64_t to, vm_size_t nbytes, int options);
-#endif /* __arm64__ */
-
-__END_DECLS
-
-#define __IODEQUALIFY(type, expr) \
- ({ typeof(expr) expr_ = (type)(uintptr_t)(expr); \
- (type)(uintptr_t)(expr_); })
-
-struct IODMACommandMapSegment {
- uint64_t fDMAOffset; // The offset of this segment in DMA
- uint64_t fMapOffset; // Offset of segment in mapping
- uint64_t fPageOffset; // Offset within first page of segment
-};
-
-struct IODMACommandInternal {
- IOMDDMAWalkSegmentState fState;
- IOMDDMACharacteristics fMDSummary;
-
- UInt64 fPreparedOffset;
- UInt64 fPreparedLength;
-
- UInt32 fSourceAlignMask;
-
- UInt8 fCursor;
- UInt8 fCheckAddressing;
- UInt8 fIterateOnly;
- UInt8 fMisaligned;
- UInt8 fPrepared;
- UInt8 fDoubleBuffer;
- UInt8 fNewMD;
- UInt8 fLocalMapperAllocValid;
- UInt8 fIOVMAddrValid;
- UInt8 fForceDoubleBuffer;
- UInt8 fSetActiveNoMapper;
-
- vm_page_t fCopyPageAlloc;
- vm_page_t fCopyNext;
- vm_page_t fNextRemapPage;
-
- ppnum_t fCopyPageCount;
-
- uint64_t fLocalMapperAlloc;
- uint64_t fLocalMapperAllocLength;
-
- OSPtr<IOBufferMemoryDescriptor> fCopyMD;
-
- IOService * fDevice;
- IOLock * fDextLock;
-
- // IODMAEventSource use
- IOReturn fStatus;
- UInt64 fActualByteCount;
- AbsoluteTime fTimeStamp;
-
- // Multisegment vars
- IODMACommandMapSegment * fMapSegments;
- uint32_t fMapSegmentsCount;
- uint64_t fLocalMapperAllocBase;
- uint64_t fOffset2Index;
- uint64_t fNextOffset;
- uint64_t fIndex;
-};
-
-struct IOMemoryDescriptorDevicePager {
- void * devicePager;
- unsigned int pagerContig:1;
- unsigned int unused:31;
- IOMemoryDescriptor * memory;
-};
-
-struct IOMemoryDescriptorReserved {
- IOMemoryDescriptorDevicePager dp;
- uint64_t descriptorID;
- uint64_t preparationID;
- // for kernel IOMD subclasses... they have no expansion
- uint64_t kernReserved[4];
- vm_tag_t kernelTag;
- vm_tag_t userTag;
- task_t creator;
- OSPtr<OSDictionary> contextObjects;
-};
-
-#if defined(__x86_64__)
-struct iopa_t {
- IOLock * lock;
- queue_head_t list;
- vm_size_t pagecount;
- vm_size_t bytecount;
-};
-
-struct iopa_page_t {
- queue_chain_t link;
- uint64_t avail;
- uint32_t signature;
-};
-typedef struct iopa_page_t iopa_page_t;
-
-typedef uintptr_t (*iopa_proc_t)(kalloc_heap_t kheap, iopa_t * a);
-
-enum{
- kIOPageAllocSignature = 'iopa'
-};
-
-extern "C" void iopa_init(iopa_t * a);
-extern "C" uintptr_t iopa_alloc(iopa_t * a, iopa_proc_t alloc, kalloc_heap_t kheap,
- vm_size_t bytes, vm_size_t balign);
-extern "C" uintptr_t iopa_free(iopa_t * a, uintptr_t addr, vm_size_t bytes);
-extern "C" uint32_t gIOPageAllocChunkBytes;
-
-extern "C" iopa_t gIOBMDPageAllocator;
-#endif /* defined(__x86_64__) */
-
-
-extern "C" struct timeval gIOLastSleepTime;
-extern "C" struct timeval gIOLastWakeTime;
-
-extern clock_sec_t gIOConsoleLockTime;
-
-extern bool gCPUsRunning;
-
-extern OSSet * gIORemoveOnReadProperties;
-
-extern uint32_t gHaltTimeMaxLog;
-extern uint32_t gHaltTimeMaxPanic;
-
-extern "C" void IOKitInitializeTime( void );
-extern void IOMachPortInitialize(void);
-
-extern "C" OSString * IOCopyLogNameForPID(int pid);
-
-extern "C" void IOKitKernelLogBuffer(const char * title, const void * buffer, size_t size,
- void (*output)(const char *format, ...));
-
-#if defined(__i386__) || defined(__x86_64__)
-#ifndef __cplusplus
-#error xx
-#endif
-
-extern const OSSymbol * gIOCreateEFIDevicePathSymbol;
-extern "C" void IOSetKeyStoreData(LIBKERN_CONSUMED IOMemoryDescriptor * data);
-extern "C" void IOSetAPFSKeyStoreData(LIBKERN_CONSUMED IOMemoryDescriptor* data);
-#endif
-extern const OSSymbol * gAKSGetKey;
-
-void IOScreenLockTimeUpdate(clock_sec_t secs);
-
-void IOCPUInitialize(void);
-IOReturn IOInstallServicePlatformActions(IOService * service);
-IOReturn IOInstallServiceSleepPlatformActions(IOService * service);
-IOReturn IORemoveServicePlatformActions(IOService * service);
-void IOCPUSleepKernel(void);
-void IOPlatformActionsInitialize(void);
-
-void IOServicePHSystemAOT(int isAOT);
-
-class IOSystemStateNotification : public IOService
-{
- OSDeclareDefaultStructors(IOSystemStateNotification);
-public:
- static IOService * initialize(void);
- virtual IOReturn setProperties( OSObject * properties) APPLE_KEXT_OVERRIDE;
- virtual bool serializeProperties(OSSerialize * serialize) const APPLE_KEXT_OVERRIDE;
-};
-
-extern class IOPMrootDomain * gIOPMRootDomain;
-
-#endif /* ! _IOKIT_KERNELINTERNAL_H */