/*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
kIOMemoryPhysicallyContiguous = 0x00000010,
kIOMemoryPageable = 0x00000020,
kIOMemoryPurgeable = 0x00000040,
+ kIOMemoryHostPhysicallyContiguous = 0x00000080,
kIOMemorySharingTypeMask = 0x000f0000,
kIOMemoryUnshared = 0x00000000,
kIOMemoryKernelUserShared = 0x00010000,
| kIOMemoryAutoPrepare
#endif
| kIOMemoryThreadSafe
+ | kIOMemoryClearEncrypt
+ | kIOMemoryMapperNone
+ | kIOMemoryUseReserve
};
-#define _IOBUFFERMEMORYDESCRIPTOR_INTASKWITHOPTIONS_ 1
+#define _IOBUFFERMEMORYDESCRIPTOR_INTASKWITHOPTIONS_ 1
+#define _IOBUFFERMEMORYDESCRIPTOR_HOSTPHYSICALLYCONTIGUOUS_ 1
/*!
@class IOBufferMemoryDescriptor
@abstract Provides a simple memory descriptor that allocates its own buffer memory.
/*! @var reserved
Reserved for future use. (Internal use only) */
+ APPLE_KEXT_WSHADOW_PUSH;
ExpansionData * reserved;
protected:
vm_size_t _capacity;
vm_offset_t _alignment;
IOOptionBits _options;
- IOPhysicalAddress * _physAddrs;
- unsigned _physSegCount;
+private:
+ uintptr_t _internalReserved;
+ unsigned _internalFlags;
+ APPLE_KEXT_WSHADOW_POP;
private:
+#ifndef __LP64__
virtual bool initWithOptions(
IOOptionBits options,
vm_size_t capacity,
vm_offset_t alignment,
- task_t inTask);
+ task_t inTask) APPLE_KEXT_DEPRECATED; /* use withOptions() instead */
+#endif /* !__LP64__ */
+public:
virtual bool initWithPhysicalMask(
task_t inTask,
IOOptionBits options,
mach_vm_address_t alignment,
mach_vm_address_t physicalMask);
+#ifdef __LP64__
+ OSMetaClassDeclareReservedUnused(IOBufferMemoryDescriptor, 0);
+ OSMetaClassDeclareReservedUnused(IOBufferMemoryDescriptor, 1);
+#else /* !__LP64__ */
OSMetaClassDeclareReservedUsed(IOBufferMemoryDescriptor, 0);
OSMetaClassDeclareReservedUsed(IOBufferMemoryDescriptor, 1);
+#endif /* !__LP64__ */
OSMetaClassDeclareReservedUnused(IOBufferMemoryDescriptor, 2);
OSMetaClassDeclareReservedUnused(IOBufferMemoryDescriptor, 3);
OSMetaClassDeclareReservedUnused(IOBufferMemoryDescriptor, 4);
OSMetaClassDeclareReservedUnused(IOBufferMemoryDescriptor, 15);
protected:
- virtual void free();
-
- virtual bool initWithAddress( void * address, /* not supported */
- IOByteCount withLength,
- IODirection withDirection );
-
- virtual bool initWithAddress( vm_address_t address, /* not supported */
- IOByteCount withLength,
- IODirection withDirection,
- task_t withTask );
-
- virtual bool initWithPhysicalAddress(
- IOPhysicalAddress address, /* not supported */
- IOByteCount withLength,
- IODirection withDirection );
-
- virtual bool initWithPhysicalRanges(
- IOPhysicalRange * ranges, /* not supported */
- UInt32 withCount,
- IODirection withDirection,
- bool asReference = false );
-
- virtual bool initWithRanges( IOVirtualRange * ranges, /* not supported */
- UInt32 withCount,
- IODirection withDirection,
- task_t withTask,
- bool asReference = false );
-
- IOGeneralMemoryDescriptor::withAddress; /* not supported */
- IOGeneralMemoryDescriptor::withPhysicalAddress; /* not supported */
- IOGeneralMemoryDescriptor::withPhysicalRanges; /* not supported */
- IOGeneralMemoryDescriptor::withRanges; /* not supported */
- IOGeneralMemoryDescriptor::withSubRange; /* not supported */
+ virtual void free() APPLE_KEXT_OVERRIDE;
public:
* hold capacity bytes. The descriptor's length is initially set to the
* capacity.
*/
+#ifndef __LP64__
virtual bool initWithOptions( IOOptionBits options,
vm_size_t capacity,
- vm_offset_t alignment);
+ vm_offset_t alignment) APPLE_KEXT_DEPRECATED; /* use withOptions() instead */
+#endif /* !__LP64__ */
static IOBufferMemoryDescriptor * withOptions( IOOptionBits options,
vm_size_t capacity,
kIOMemoryPhysicallyContiguous - pass to request memory be physically contiguous. This option is heavily discouraged. The request may fail if memory is fragmented, may cause large amounts of paging activity, and may take a very long time to execute.<br>
kIOMemoryPageable - pass to request memory be non-wired - the default for kernel allocated memory is wired.<br>
kIOMemoryPurgeable - pass to request memory that may later have its purgeable state set with IOMemoryDescriptor::setPurgeable. Only supported for kIOMemoryPageable allocations.<br>
- kIOMemoryKernelUserShared - pass to request memory that will be mapped into both the kernel and client applications.
+ kIOMemoryKernelUserShared - pass to request memory that will be mapped into both the kernel and client applications.<br>
+ kIOMapInhibitCache - allocate memory with inhibited cache setting. <br>
+ kIOMapWriteThruCache - allocate memory with writethru cache setting. <br>
+ kIOMapCopybackCache - allocate memory with copyback cache setting. <br>
+ kIOMapWriteCombineCache - allocate memory with writecombined cache setting.
@param capacity The number of bytes to allocate.
@param alignment The minimum required alignment of the buffer in bytes - 1 is the default for no required alignment. For example, pass 256 to get memory allocated at an address with bits 0-7 zero.
@result Returns an instance of class IOBufferMemoryDescriptor to be released by the caller, which will free the memory desriptor and associated buffer. */
@param options Options for the allocation:<br>
kIODirectionOut, kIODirectionIn - set the direction of the I/O transfer.<br>
kIOMemoryPhysicallyContiguous - pass to request memory be physically contiguous. This option is heavily discouraged. The request may fail if memory is fragmented, may cause large amounts of paging activity, and may take a very long time to execute.<br>
- kIOMemoryKernelUserShared - pass to request memory that will be mapped into both the kernel and client applications.
+ kIOMemoryKernelUserShared - pass to request memory that will be mapped into both the kernel and client applications.<br>
+ kIOMapInhibitCache - allocate memory with inhibited cache setting. <br>
+ kIOMapWriteThruCache - allocate memory with writethru cache setting. <br>
+ kIOMapCopybackCache - allocate memory with copyback cache setting. <br>
+ kIOMapWriteCombineCache - allocate memory with writecombined cache setting.
@param capacity The number of bytes to allocate.
- @param mask The buffer will be allocated with pages such that physical addresses will only have bits set present in physicalMask. For example, pass 0x00000000FFFFFFFFULL for a buffer to be accessed by hardware that has 32 address bits.
+ @param physicalMask The buffer will be allocated with pages such that physical addresses will only have bits set present in physicalMask. For example, pass 0x00000000FFFFFFFFULL for a buffer to be accessed by hardware that has 32 address bits.
@result Returns an instance of class IOBufferMemoryDescriptor to be released by the caller, which will free the memory desriptor and associated buffer. */
static IOBufferMemoryDescriptor * inTaskWithPhysicalMask(
vm_size_t capacity,
IODirection withDirection,
bool withContiguousMemory = false);
- /*
- * initWithBytes:
- *
- * Initialize a new IOBufferMemoryDescriptor preloaded with bytes (copied).
- * The descriptor's length and capacity are set to the input buffer's size.
- */
+#ifndef __LP64__
virtual bool initWithBytes(const void * bytes,
vm_size_t withLength,
IODirection withDirection,
- bool withContiguousMemory = false);
+ bool withContiguousMemory = false) APPLE_KEXT_DEPRECATED; /* use withBytes() instead */
+#endif /* !__LP64__ */
/*
* withBytes:
*/
virtual bool appendBytes(const void *bytes, vm_size_t withLength);
- /* DEPRECATED */ virtual void * getVirtualSegment(IOByteCount offset,
- /* DEPRECATED */ IOByteCount * length);
+#ifndef __LP64__
+ virtual void * getVirtualSegment(IOByteCount offset,
+ IOByteCount * length) APPLE_KEXT_OVERRIDE APPLE_KEXT_DEPRECATED; /* use getBytesNoCopy() instead */
+#endif /* !__LP64__ */
};
#endif /* !_IOBUFFERMEMORYDESCRIPTOR_H */
projects / apple / xnu.git / blobdiff