xnu-2782.20.48.tar.gz

[apple/xnu.git] / iokit / Kernel / IOKitKernelInternal.h

diff --git a/iokit/Kernel/IOKitKernelInternal.h b/iokit/Kernel/IOKitKernelInternal.h
index 27c55e7c4928621842d921ece1bd38b43ab352f8..a22bd8c60f97836377de1573432ee76a71ef941e 100644 (file)
--- a/iokit/Kernel/IOKitKernelInternal.h
+++ b/iokit/Kernel/IOKitKernelInternal.h
@@ -98,6 +98,9 @@ extern ppnum_t IOGetLastPageNumber(void);
 
 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);
 
@@ -105,12 +108,16 @@ __END_DECLS
 
 // Used for dedicated communications for IODMACommand
 enum  {
-    kIOMDWalkSegments         = 0x00000001,
-    kIOMDFirstSegment        = 0x00000002 | kIOMDWalkSegments,
-    kIOMDGetCharacteristics   = 0x00000004,
-    kIOMDSetDMAActive         = 0x00000005,
-    kIOMDSetDMAInactive       = 0x00000006,
-    kIOMDLastDMACommandOperation
+    kIOMDWalkSegments             = 0x01000000,
+    kIOMDFirstSegment            = 1 | kIOMDWalkSegments,
+    kIOMDGetCharacteristics       = 0x02000000,
+    kIOMDGetCharacteristicsMapped = 1 | kIOMDGetCharacteristics,
+    kIOMDDMAActive                = 0x03000000,
+    kIOMDSetDMAActive             = 1 | kIOMDDMAActive,
+    kIOMDSetDMAInactive           = kIOMDDMAActive,
+    kIOMDAddDMAMapSpec            = 0x04000000,
+    kIOMDDMAMap                   = 0x05000000,
+    kIOMDDMACommandOperationMask  = 0xFF000000,
 };
 struct IOMDDMACharacteristics {
     UInt64 fLength;
@@ -119,7 +126,7 @@ struct IOMDDMACharacteristics {
     UInt32 fPageAlign;
     ppnum_t fHighestPage;
     IODirection fDirection;
-    UInt8 fIsMapped, fIsPrepared;
+    UInt8 fIsPrepared;
 };
 struct IOMDDMAWalkSegmentArgs {
     UInt64 fOffset;                    // Input/Output offset
@@ -128,6 +135,16 @@ struct IOMDDMAWalkSegmentArgs {
 };
 typedef UInt8 IOMDDMAWalkSegmentState[128];
 
+struct IOMDDMAMapArgs {
+    IOMapper *            fMapper;
+    IODMAMapSpecification fMapSpec;
+    uint64_t              fOffset;
+    uint64_t              fLength;
+    uint64_t              fAlloc;
+    ppnum_t               fAllocCount;
+    uint8_t               fMapContig;
+};
+
 struct IODMACommandInternal
 {
     IOMDDMAWalkSegmentState fState;
@@ -154,14 +171,17 @@ struct IODMACommandInternal
 
     ppnum_t  fCopyPageCount;
 
-    ppnum_t  fLocalMapperPageAlloc;
+    addr64_t  fLocalMapperPageAlloc;
     ppnum_t  fLocalMapperPageCount;
 
     class IOBufferMemoryDescriptor * fCopyMD;
 
+    IOService * fDevice;
+
     // IODMAEventSource use
     IOReturn fStatus;
     UInt64   fActualByteCount;
+    AbsoluteTime    fTimeStamp;
 };
 
 struct IOMemoryDescriptorDevicePager {
@@ -178,12 +198,43 @@ struct IOMemoryDescriptorReserved {
     uint64_t                      kernReserved[4];
 };
 
+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)(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, vm_size_t bytes, uint32_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;
 
 extern "C" struct timeval gIOLastSleepTime;
 extern "C" struct timeval gIOLastWakeTime;
 
 extern clock_sec_t gIOConsoleLockTime;
 
+extern OSSet * gIORemoveOnReadProperties;
+
 extern "C" void IOKitResetTime( void );
 extern "C" void IOKitInitializeTime( void );