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--- xnu/xnu-344/iokit/Kernel/IODeviceTreeSupport.cpp
+++ xnu/xnu-1504.9.17/iokit/Kernel/IODeviceTreeSupport.cpp
@@ -1,31 +1,29 @@
/*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
- *
- * HISTORY
- * 23 Nov 98 sdouglas, created from IODeviceTreeBus.m, & MacOS exp mgr.
- * 05 Apr 99 sdouglas, add interrupt mapping.
- *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <IOKit/IODeviceTreeSupport.h>
@@ -37,7 +35,8 @@
#include <IOKit/IOLib.h>
#include <IOKit/IOKitKeys.h>
-#include <DeviceTree.h>
+#include <pexpert/device_tree.h>
+
extern "C" {
#include <machine/machine_routines.h>
void DTInit( void * data );
@@ -74,29 +73,29 @@
const OSSymbol * gIODTInterruptParentKey;
const OSSymbol * gIODTNWInterruptMappingKey;
+OSDictionary * gIODTSharedInterrupts;
static IORegistryEntry * MakeReferenceTable( DTEntry dtEntry, bool copy );
static void AddPHandle( IORegistryEntry * regEntry );
static void FreePhysicalMemory( vm_offset_t * range );
+static bool IODTMapInterruptsSharing( IORegistryEntry * regEntry, OSDictionary * allInts );
IORegistryEntry *
IODeviceTreeAlloc( void * dtTop )
{
- IORegistryEntry *parent;
- IORegistryEntry *child;
- IORegistryIterator *regIter;
+ IORegistryEntry * parent;
+ IORegistryEntry * child;
+ IORegistryIterator * regIter;
DTEntryIterator iter;
- DTEntry dtChild;
- DTEntry mapEntry;
- OSArray *stack;
- OSData *prop;
- OSObject *obj;
- vm_offset_t *dtMap;
- int propSize;
- bool intMap;
- bool freeDT;
-
- IOLog("IODeviceTreeSupport ");
+ DTEntry dtChild;
+ DTEntry mapEntry;
+ OSArray * stack;
+ OSData * prop;
+ OSDictionary * allInts;
+ vm_offset_t * dtMap;
+ unsigned int propSize;
+ bool intMap;
+ bool freeDT;
gIODTPlane = IORegistryEntry::makePlane( kIODeviceTreePlane );
@@ -144,11 +143,11 @@
freeDT = (kSuccess == DTLookupEntry( 0, "/chosen/memory-map", &mapEntry ))
&& (kSuccess == DTGetProperty( mapEntry,
"DeviceTree", (void **) &dtMap, &propSize ))
- && ((2 * sizeof( vm_offset_t)) == propSize);
+ && ((2 * sizeof(uint32_t)) == propSize);
parent = MakeReferenceTable( (DTEntry)dtTop, freeDT );
- stack = OSArray::withObjects( & (const OSObject *) parent, 1, 10 );
+ stack = OSArray::withObjects( (const OSObject **) &parent, 1, 10 );
DTCreateEntryIterator( (DTEntry)dtTop, &iter );
do {
@@ -193,19 +192,25 @@
// free original device tree
DTInit(0);
IODTFreeLoaderInfo( "DeviceTree",
- (void *)dtMap[0], round_page(dtMap[1]) );
+ (void *)dtMap[0], (int) round_page(dtMap[1]) );
}
// adjust tree
+
+ gIODTSharedInterrupts = OSDictionary::withCapacity(4);
+ allInts = OSDictionary::withCapacity(4);
intMap = false;
regIter = IORegistryIterator::iterateOver( gIODTPlane,
kIORegistryIterateRecursively );
- assert( regIter );
- if( regIter) {
+ assert( regIter && allInts && gIODTSharedInterrupts );
+ if( regIter && allInts && gIODTSharedInterrupts ) {
while( (child = regIter->getNextObject())) {
- IODTMapInterrupts( child );
+ IODTMapInterruptsSharing( child, allInts );
if( !intMap && child->getProperty( gIODTInterruptParentKey))
intMap = true;
+
+#if __ppc__
+ OSObject * obj;
// Look for a "driver,AAPL,MacOSX,PowerPC" property.
if( (obj = child->getProperty( "driver,AAPL,MacOSX,PowerPC"))) {
@@ -219,20 +224,43 @@
if( (obj = child->getProperty( "driver,AAPL,MacOS,PowerPC"))) {
if( (0 == (prop = (OSData *)child->getProperty( gIODTTypeKey )))
- || (strcmp( "display", (char *) prop->getBytesNoCopy())) ) {
+ || (strncmp("display", (char *)prop->getBytesNoCopy(), sizeof("display"))) ) {
child->removeProperty( "driver,AAPL,MacOS,PowerPC");
}
}
+#endif /* __ppc__ */
}
regIter->release();
}
+
+#if IODTSUPPORTDEBUG
+ parent->setProperty("allInts", allInts);
+ parent->setProperty("sharedInts", gIODTSharedInterrupts);
+
+ regIter = IORegistryIterator::iterateOver( gIODTPlane,
+ kIORegistryIterateRecursively );
+ if (regIter) {
+ while( (child = regIter->getNextObject())) {
+ OSArray *
+ array = OSDynamicCast(OSArray, child->getProperty( gIOInterruptSpecifiersKey ));
+ for( UInt32 i = 0; array && (i < array->getCount()); i++)
+ {
+ IOOptionBits options;
+ IOReturn ret = IODTGetInterruptOptions( child, i, &options );
+ if( (ret != kIOReturnSuccess) || options)
+ IOLog("%s[%ld] %ld (%x)\n", child->getName(), i, options, ret);
+ }
+ }
+ regIter->release();
+ }
+#endif
+
+ allInts->release();
if( intMap)
// set a key in the root to indicate we found NW interrupt mapping
parent->setProperty( gIODTNWInterruptMappingKey,
(OSObject *) gIODTNWInterruptMappingKey );
-
- IOLog("done\n");
return( parent);
}
@@ -299,7 +327,7 @@
const OSSymbol *sym;
DTPropertyIterator dtIter;
void *prop;
- int propSize;
+ unsigned int propSize;
char *name;
char location[ 32 ];
bool noLocation = true;
@@ -344,17 +372,17 @@
} else if( nameKey == gIODTUnitKey ) {
// all OF strings are null terminated... except this one
- if( propSize >= (int) sizeof( location))
- propSize = sizeof( location) - 1;
+ if( propSize >= (int) sizeof(location))
+ propSize = sizeof(location) - 1;
strncpy( location, (const char *) prop, propSize );
location[ propSize ] = 0;
regEntry->setLocation( location );
propTable->removeObject( gIODTUnitKey );
noLocation = false;
- } else if( noLocation && (0 == strcmp( name, "reg"))) {
+ } else if(noLocation && (!strncmp(name, "reg", sizeof("reg")))) {
// default location - override later
- sprintf( location, "%lX", *((UInt32 *) prop) );
+ snprintf(location, sizeof(location), "%X", *((uint32_t *) prop));
regEntry->setLocation( location );
}
}
@@ -406,15 +434,21 @@
return( false );
}
-IORegistryEntry * IODTFindInterruptParent( IORegistryEntry * regEntry )
+static IORegistryEntry * IODTFindInterruptParent( IORegistryEntry * regEntry, IOItemCount index )
{
IORegistryEntry * parent;
UInt32 phandle;
-
- if( GetUInt32( regEntry, gIODTInterruptParentKey, &phandle))
- parent = FindPHandle( phandle );
-
- else if( 0 == regEntry->getProperty( "interrupt-controller"))
+ OSData * data;
+ unsigned int len;
+
+ if( (data = OSDynamicCast( OSData, regEntry->getProperty( gIODTInterruptParentKey )))
+ && (sizeof(UInt32) <= (len = data->getLength()))) {
+ if (((index + 1) * sizeof(UInt32)) > len)
+ index = 0;
+ phandle = ((UInt32 *) data->getBytesNoCopy())[index];
+ parent = FindPHandle( phandle );
+
+ } else if( 0 == regEntry->getProperty( "interrupt-controller"))
parent = regEntry->getParentEntry( gIODTPlane);
else
parent = 0;
@@ -433,7 +467,7 @@
assert( ok );
if( ok) {
- sprintf( buf, "IOInterruptController%08lX", phandle);
+ snprintf(buf, sizeof(buf), "IOInterruptController%08X", (uint32_t)phandle);
sym = OSSymbol::withCString( buf );
} else
sym = 0;
@@ -452,8 +486,8 @@
*aCellCount = 0;
}
-UInt32 IODTMapOneInterrupt( IORegistryEntry * regEntry, UInt32 * intSpec,
- OSData ** spec, const OSSymbol ** controller )
+static UInt32 IODTMapOneInterrupt( IORegistryEntry * regEntry, UInt32 * intSpec, UInt32 index,
+ OSData ** spec, const OSSymbol ** controller )
{
IORegistryEntry *parent = 0;
OSData *data;
@@ -465,12 +499,12 @@
UInt32 i, original_icells;
bool cmp, ok = false;
- parent = IODTFindInterruptParent( regEntry );
+ parent = IODTFindInterruptParent( regEntry, index );
IODTGetICellCounts( parent, &icells, &acells );
addrCmp = 0;
if( acells) {
data = OSDynamicCast( OSData, regEntry->getProperty( "reg" ));
- if( data && (data->getLength() >= (acells * sizeof( UInt32))))
+ if( data && (data->getLength() >= (acells * sizeof(UInt32))))
addrCmp = (UInt32 *) data->getBytesNoCopy();
}
original_icells = icells;
@@ -491,7 +525,7 @@
// found a controller - don't want to follow cascaded controllers
parent = 0;
*spec = OSData::withBytesNoCopy( (void *) intSpec,
- icells * sizeof( UInt32));
+ icells * sizeof(UInt32));
*controller = IODTInterruptControllerName( regEntry );
ok = (*spec && *controller);
} else if( parent && (data = OSDynamicCast( OSData,
@@ -500,7 +534,7 @@
map = (UInt32 *) data->getBytesNoCopy();
endMap = map + (data->getLength() / sizeof(UInt32));
data = OSDynamicCast( OSData, regEntry->getProperty( "interrupt-map-mask" ));
- if( data && (data->getLength() >= ((acells + icells) * sizeof( UInt32))))
+ if( data && (data->getLength() >= ((acells + icells) * sizeof(UInt32))))
maskCmp = (UInt32 *) data->getBytesNoCopy();
else
maskCmp = 0;
@@ -568,19 +602,58 @@
return( ok ? original_icells : 0 );
}
-bool IODTMapInterrupts( IORegistryEntry * regEntry )
-{
- IORegistryEntry *parent;
- OSData *local;
- OSData *local2;
- UInt32 *localBits;
- UInt32 *localEnd;
- OSData *map;
- OSArray *mapped;
- const OSSymbol *controller;
- OSArray *controllers;
- UInt32 skip = 1;
- bool ok, nw;
+IOReturn IODTGetInterruptOptions( IORegistryEntry * regEntry, int source, IOOptionBits * options )
+{
+ OSArray * controllers;
+ OSArray * specifiers;
+ OSArray * shared;
+ OSObject * spec;
+ OSObject * oneSpec;
+
+ *options = 0;
+
+ controllers = OSDynamicCast(OSArray, regEntry->getProperty(gIOInterruptControllersKey));
+ specifiers = OSDynamicCast(OSArray, regEntry->getProperty(gIOInterruptSpecifiersKey));
+
+ if( !controllers || !specifiers)
+ return (kIOReturnNoInterrupt);
+
+ shared = (OSArray *) gIODTSharedInterrupts->getObject(
+ (const OSSymbol *) controllers->getObject(source) );
+ if (!shared)
+ return (kIOReturnSuccess);
+
+ spec = specifiers->getObject(source);
+ if (!spec)
+ return (kIOReturnNoInterrupt);
+
+ for (unsigned int i = 0;
+ (oneSpec = shared->getObject(i))
+ && (!oneSpec->isEqualTo(spec));
+ i++ ) {}
+
+ if (oneSpec)
+ *options = kIODTInterruptShared;
+
+ return (kIOReturnSuccess);
+}
+
+static bool IODTMapInterruptsSharing( IORegistryEntry * regEntry, OSDictionary * allInts )
+{
+ IORegistryEntry * parent;
+ OSData * local;
+ OSData * local2;
+ UInt32 * localBits;
+ UInt32 * localEnd;
+ IOItemCount index;
+ OSData * map;
+ OSObject * oneMap;
+ OSArray * mapped;
+ OSArray * controllerInts;
+ const OSSymbol * controller = 0;
+ OSArray * controllers;
+ UInt32 skip = 1;
+ bool ok, nw;
nw = (0 == (local = OSDynamicCast( OSData,
regEntry->getProperty( gIODTAAPLInterruptsKey))));
@@ -598,7 +671,8 @@
}
localBits = (UInt32 *) local->getBytesNoCopy();
- localEnd = localBits + (local->getLength() / sizeof( UInt32));
+ localEnd = localBits + (local->getLength() / sizeof(UInt32));
+ index = 0;
mapped = OSArray::withCapacity( 1 );
controllers = OSArray::withCapacity( 1 );
@@ -606,23 +680,63 @@
if( ok) do {
if( nw) {
- skip = IODTMapOneInterrupt( regEntry, localBits, &map, &controller );
+ skip = IODTMapOneInterrupt( regEntry, localBits, index, &map, &controller );
if( 0 == skip) {
IOLog("%s: error mapping interrupt[%d]\n",
regEntry->getName(), mapped->getCount());
break;
}
} else {
- map = OSData::withData( local, mapped->getCount() * sizeof( UInt32),
- sizeof( UInt32));
+ map = OSData::withData( local, mapped->getCount() * sizeof(UInt32),
+ sizeof(UInt32));
controller = gIODTDefaultInterruptController;
controller->retain();
}
+ index++;
localBits += skip;
mapped->setObject( map );
+ controllers->setObject( controller );
+
+ if (allInts)
+ {
+ controllerInts = (OSArray *) allInts->getObject( controller );
+ if (controllerInts)
+ {
+ for (unsigned int i = 0; (oneMap = controllerInts->getObject(i)); i++)
+ {
+ if (map->isEqualTo(oneMap))
+ {
+ controllerInts = (OSArray *) gIODTSharedInterrupts->getObject( controller );
+ if (controllerInts)
+ controllerInts->setObject(map);
+ else
+ {
+ controllerInts = OSArray::withObjects( (const OSObject **) &map, 1, 4 );
+ if (controllerInts)
+ {
+ gIODTSharedInterrupts->setObject( controller, controllerInts );
+ controllerInts->release();
+ }
+ }
+ break;
+ }
+ }
+ if (!oneMap)
+ controllerInts->setObject(map);
+ }
+ else
+ {
+ controllerInts = OSArray::withObjects( (const OSObject **) &map, 1, 16 );
+ if (controllerInts)
+ {
+ allInts->setObject( controller, controllerInts );
+ controllerInts->release();
+ }
+ }
+ }
+
map->release();
- controllers->setObject( (OSObject *) controller );
controller->release();
} while( localBits < localEnd);
@@ -641,6 +755,11 @@
mapped->release();
return( ok );
+}
+
+bool IODTMapInterrupts( IORegistryEntry * regEntry )
+{
+ return( IODTMapInterruptsSharing( regEntry, 0 ));
}
/*
@@ -725,7 +844,7 @@
result = regEntry->compareNames( obj );
obj->release();
}
-#ifdef DEBUG
+#if DEBUG
else IOLog("Couldn't unserialize %s\n", keys );
#endif
@@ -796,7 +915,7 @@
persist.compareFunc = compareFunc;
persist.locationFunc = locationFunc;
- prop = OSData::withBytes( &persist, sizeof( persist));
+ prop = OSData::withBytes( &persist, sizeof(persist));
if( !prop)
return;
@@ -810,7 +929,6 @@
cellCount--;
return( left[ cellCount ] - right[ cellCount ] );
}
-
void IODTGetCellCounts( IORegistryEntry * regEntry,
UInt32 * sizeCount, UInt32 * addressCount)
@@ -840,10 +958,13 @@
UInt32 childSizeCells, childAddressCells;
UInt32 childCells;
UInt32 cell[ 5 ], offset = 0, length;
+ UInt32 endCell[ 5 ];
UInt32 *range;
+ UInt32 *lookRange;
+ UInt32 *startRange;
UInt32 *endRanges;
bool ok = true;
- SInt32 diff;
+ SInt32 diff, diff2, endDiff;
IODTPersistent *persist;
IODTCompareAddressCellFunc compare;
@@ -851,67 +972,93 @@
IODTGetCellCounts( regEntry, &childSizeCells, &childAddressCells );
childCells = childAddressCells + childSizeCells;
- bcopy( cellsIn, cell, 4 * childCells );
+ bcopy( cellsIn, cell, sizeof(UInt32) * childCells );
if( childSizeCells > 1)
*len = IOPhysical32( cellsIn[ childAddressCells ],
cellsIn[ childAddressCells + 1 ] );
else
*len = IOPhysical32( 0, cellsIn[ childAddressCells ] );
- do {
- prop = OSDynamicCast( OSData, regEntry->getProperty( gIODTRangeKey ));
- if( 0 == prop) {
- /* end of the road */
- *phys = IOPhysical32( 0, cell[ childAddressCells - 1 ] + offset);
- break;
- }
-
- parent = regEntry->getParentEntry( gIODTPlane );
- IODTGetCellCounts( parent, &sizeCells, &addressCells );
-
- if( (length = prop->getLength())) {
- // search
- range = (UInt32 *) prop->getBytesNoCopy();
- endRanges = range + (length / 4);
-
- prop = (OSData *) regEntry->getProperty( gIODTPersistKey );
- if( prop) {
- persist = (IODTPersistent *) prop->getBytesNoCopy();
- compare = persist->compareFunc;
- } else
- compare = DefaultCompare;
-
- for( ok = false;
- range < endRanges;
- range += (childCells + addressCells) ) {
-
- // is cell >= range start?
- diff = (*compare)( childAddressCells, cell, range );
- if( diff < 0)
- continue;
-
- // is cell + size <= range end?
- if( (diff + cell[ childCells - 1 ])
- > range[ childCells + addressCells - 1 ])
- continue;
-
- offset += diff;
- ok = true;
- break;
- }
-
- // Get the physical start of the range from our parent
- bcopy( range + childAddressCells, cell, 4 * addressCells );
- bzero( cell + addressCells, 4 * sizeCells );
-
- } /* else zero length range => pass thru to parent */
+ do
+ {
+ prop = OSDynamicCast( OSData, regEntry->getProperty( gIODTRangeKey ));
+ if( 0 == prop) {
+ /* end of the road */
+ *phys = IOPhysical32( 0, cell[ childAddressCells - 1 ] + offset);
+ break;
+ }
+
+ parent = regEntry->getParentEntry( gIODTPlane );
+ IODTGetCellCounts( parent, &sizeCells, &addressCells );
+
+ if( (length = prop->getLength())) {
+ // search
+ startRange = (UInt32 *) prop->getBytesNoCopy();
+ range = startRange;
+ endRanges = range + (length / sizeof(UInt32));
+
+ prop = (OSData *) regEntry->getProperty( gIODTPersistKey );
+ if( prop) {
+ persist = (IODTPersistent *) prop->getBytesNoCopy();
+ compare = persist->compareFunc;
+ } else
+ compare = DefaultCompare;
+
+ for( ok = false;
+ range < endRanges;
+ range += (childCells + addressCells) ) {
+
+ // is cell start within range?
+ diff = (*compare)( childAddressCells, cell, range );
+
+ bcopy(range, endCell, childAddressCells * sizeof(UInt32));
+ endCell[childAddressCells - 1] += range[childCells + addressCells - 1];
+ diff2 = (*compare)( childAddressCells, cell, endCell );
+
+ if ((diff < 0) || (diff2 >= 0))
+ continue;
+
+ ok = (0 == cell[childCells - 1]);
+ if (!ok)
+ {
+ // search for cell end
+ bcopy(cell, endCell, childAddressCells * sizeof(UInt32));
+ endCell[childAddressCells - 1] += cell[childCells - 1] - 1;
+ lookRange = startRange;
+ for( ;
+ lookRange < endRanges;
+ lookRange += (childCells + addressCells) )
+ {
+ // is cell >= range start?
+ endDiff = (*compare)( childAddressCells, endCell, lookRange );
+ if( endDiff < 0)
+ continue;
+ if ((endDiff - cell[childCells - 1] + 1 + lookRange[childAddressCells + addressCells - 1])
+ == (diff + range[childAddressCells + addressCells - 1]))
+ {
+ ok = true;
+ break;
+ }
+ }
+ if (!ok)
+ continue;
+ }
+ offset += diff;
+ break;
+ }
+
+ // Get the physical start of the range from our parent
+ bcopy( range + childAddressCells, cell, sizeof(UInt32) * addressCells );
+ bzero( cell + addressCells, sizeof(UInt32) * sizeCells );
+
+ } /* else zero length range => pass thru to parent */
regEntry = parent;
childSizeCells = sizeCells;
childAddressCells = addressCells;
childCells = childAddressCells + childSizeCells;
-
- } while( ok && regEntry);
+ }
+ while( ok && regEntry);
return( ok);
}
@@ -953,7 +1100,7 @@
range = 0;
if( parent)
range = IODeviceMemory::withSubRange( parent,
- phys - parent->getPhysicalAddress(), len );
+ phys - parent->getPhysicalSegment(0, 0, kIOMemoryMapperNone), len );
if( 0 == range)
range = IODeviceMemory::withRange( phys, len );
if( range)
@@ -1082,3 +1229,8 @@
return( ret );
}
+
+extern "C" IOReturn IONDRVLibrariesInitialize( IOService * provider )
+{
+ return( kIOReturnUnsupported );
+}