xnu-3789.60.24.tar.gz

[apple/xnu.git] / iokit / IOKit / IOBufferMemoryDescriptor.h

diff --git a/iokit/IOKit/IOBufferMemoryDescriptor.h b/iokit/IOKit/IOBufferMemoryDescriptor.h
index f5d5040617d3aa15a8a2f26bf09aa7975c740c35..6e6f051b931bcffa1939a4f86f860628a5d530e2 100644 (file)
--- a/iokit/IOKit/IOBufferMemoryDescriptor.h
+++ b/iokit/IOKit/IOBufferMemoryDescriptor.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2016 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -34,6 +34,7 @@ enum {
     kIOMemoryPhysicallyContiguous      = 0x00000010,
     kIOMemoryPageable                  = 0x00000020,
     kIOMemoryPurgeable                 = 0x00000040,
+    kIOMemoryHostPhysicallyContiguous          = 0x00000080,
     kIOMemorySharingTypeMask           = 0x000f0000,
     kIOMemoryUnshared                  = 0x00000000,
     kIOMemoryKernelUserShared          = 0x00010000,
@@ -44,9 +45,12 @@ enum {
 #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.
@@ -117,7 +121,7 @@ public:
     OSMetaClassDeclareReservedUnused(IOBufferMemoryDescriptor, 15);
 
 protected:
-    virtual void free();
+    virtual void free() APPLE_KEXT_OVERRIDE;
 
 public:
 
@@ -175,7 +179,7 @@ public:
     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(
@@ -267,7 +271,7 @@ public:
 
 #ifndef __LP64__
     virtual void * getVirtualSegment(IOByteCount offset,
-                                       IOByteCount * length) APPLE_KEXT_DEPRECATED; /* use getBytesNoCopy() instead */
+                                       IOByteCount * length) APPLE_KEXT_OVERRIDE APPLE_KEXT_DEPRECATED; /* use getBytesNoCopy() instead */
 #endif /* !__LP64__ */
 };