X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/91447636331957f3d9b5ca5b508f07c526b0074d..e2fac8b15b12a7979f72090454d850e612fc5b13:/iokit/Kernel/IODeviceTreeSupport.cpp diff --git a/iokit/Kernel/IODeviceTreeSupport.cpp b/iokit/Kernel/IODeviceTreeSupport.cpp index fd695d3bc..381022c56 100644 --- a/iokit/Kernel/IODeviceTreeSupport.cpp +++ b/iokit/Kernel/IODeviceTreeSupport.cpp @@ -1,23 +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@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #include @@ -88,7 +94,7 @@ IODeviceTreeAlloc( void * dtTop ) OSObject * obj; OSDictionary * allInts; vm_offset_t * dtMap; - int propSize; + unsigned int propSize; bool intMap; bool freeDT; @@ -138,7 +144,7 @@ IODeviceTreeAlloc( void * dtTop ) freeDT = (kSuccess == DTLookupEntry( 0, "/chosen/memory-map", &mapEntry )) && (kSuccess == DTGetProperty( mapEntry, "DeviceTree", (void **) &dtMap, &propSize )) - && ((2 * sizeof( vm_offset_t)) == propSize); + && ((2 * sizeof(vm_offset_t)) == propSize); parent = MakeReferenceTable( (DTEntry)dtTop, freeDT ); @@ -216,7 +222,7 @@ IODeviceTreeAlloc( void * dtTop ) 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"); } } @@ -302,7 +308,11 @@ static void FreePhysicalMemory( vm_offset_t * range ) { vm_offset_t virt; +#if defined (__i386__) + virt = ml_boot_ptovirt( range[0] ); +#else virt = ml_static_ptovirt( range[0] ); +#endif if( virt) { ml_static_mfree( virt, range[1] ); } @@ -318,7 +328,7 @@ MakeReferenceTable( DTEntry dtEntry, bool copy ) const OSSymbol *sym; DTPropertyIterator dtIter; void *prop; - int propSize; + unsigned int propSize; char *name; char location[ 32 ]; bool noLocation = true; @@ -363,17 +373,17 @@ MakeReferenceTable( DTEntry dtEntry, bool copy ) } 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), "%lX", *((UInt32 *) prop)); regEntry->setLocation( location ); } } @@ -425,15 +435,21 @@ static bool GetUInt32( IORegistryEntry * regEntry, const OSSymbol * name, return( false ); } -IORegistryEntry * IODTFindInterruptParent( IORegistryEntry * regEntry ) +static IORegistryEntry * IODTFindInterruptParent( IORegistryEntry * regEntry, IOItemCount index ) { IORegistryEntry * parent; UInt32 phandle; + OSData * data; + unsigned int len; - if( GetUInt32( regEntry, gIODTInterruptParentKey, &phandle)) - parent = FindPHandle( phandle ); + 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")) + } else if( 0 == regEntry->getProperty( "interrupt-controller")) parent = regEntry->getParentEntry( gIODTPlane); else parent = 0; @@ -452,7 +468,7 @@ const OSSymbol * IODTInterruptControllerName( IORegistryEntry * regEntry ) assert( ok ); if( ok) { - sprintf( buf, "IOInterruptController%08lX", phandle); + snprintf(buf, sizeof(buf), "IOInterruptController%08lX", phandle); sym = OSSymbol::withCString( buf ); } else sym = 0; @@ -471,8 +487,8 @@ static void IODTGetICellCounts( IORegistryEntry * regEntry, *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; @@ -484,12 +500,12 @@ UInt32 IODTMapOneInterrupt( IORegistryEntry * regEntry, UInt32 * intSpec, 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; @@ -510,7 +526,7 @@ UInt32 IODTMapOneInterrupt( IORegistryEntry * regEntry, UInt32 * intSpec, // 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, @@ -519,7 +535,7 @@ UInt32 IODTMapOneInterrupt( IORegistryEntry * regEntry, UInt32 * intSpec, 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; @@ -630,11 +646,12 @@ static bool IODTMapInterruptsSharing( IORegistryEntry * regEntry, OSDictionary * OSData * local2; UInt32 * localBits; UInt32 * localEnd; + IOItemCount index; OSData * map; OSObject * oneMap; OSArray * mapped; OSArray * controllerInts; - const OSSymbol * controller; + const OSSymbol * controller = 0; OSArray * controllers; UInt32 skip = 1; bool ok, nw; @@ -655,7 +672,8 @@ static bool IODTMapInterruptsSharing( IORegistryEntry * regEntry, OSDictionary * } 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 ); @@ -663,19 +681,20 @@ static bool IODTMapInterruptsSharing( IORegistryEntry * regEntry, OSDictionary * 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 ); @@ -897,7 +916,7 @@ void IODTSetResolving( IORegistryEntry * regEntry, persist.compareFunc = compareFunc; persist.locationFunc = locationFunc; - prop = OSData::withBytes( &persist, sizeof( persist)); + prop = OSData::withBytes( &persist, sizeof(persist)); if( !prop) return; @@ -912,7 +931,6 @@ static SInt32 DefaultCompare( UInt32 cellCount, UInt32 left[], UInt32 right[] ) return( left[ cellCount ] - right[ cellCount ] ); } - void IODTGetCellCounts( IORegistryEntry * regEntry, UInt32 * sizeCount, UInt32 * addressCount) { @@ -941,10 +959,13 @@ bool IODTResolveAddressCell( IORegistryEntry * regEntry, 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; @@ -952,67 +973,93 @@ bool IODTResolveAddressCell( IORegistryEntry * regEntry, 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; + do + { + prop = OSDynamicCast( OSData, regEntry->getProperty( gIODTRangeKey )); + if( 0 == prop) { + /* end of the road */ + *phys = IOPhysical32( 0, cell[ childAddressCells - 1 ] + offset); + break; + } - offset += diff; - ok = true; - 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, 4 * addressCells ); - bzero( cell + addressCells, 4 * sizeCells ); + // 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 */ + } /* 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); }