X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d7e50217d7adf6e52786a38bcaa4cd698cb9a79e..91447636331957f3d9b5ca5b508f07c526b0074d:/iokit/Kernel/IODeviceTreeSupport.cpp?ds=sidebyside diff --git a/iokit/Kernel/IODeviceTreeSupport.cpp b/iokit/Kernel/IODeviceTreeSupport.cpp index 9aa3b9457..fd695d3bc 100644 --- a/iokit/Kernel/IODeviceTreeSupport.cpp +++ b/iokit/Kernel/IODeviceTreeSupport.cpp @@ -3,28 +3,22 @@ * * @APPLE_LICENSE_HEADER_START@ * - * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. + * 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. 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 + * This 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and - * limitations under the License. + * FITNESS FOR A PARTICULAR PURPOSE 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. - */ #include #include @@ -35,7 +29,8 @@ #include #include -#include +#include + extern "C" { #include void DTInit( void * data ); @@ -72,29 +67,30 @@ const OSSymbol * gIODTInterruptCellKey; 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; + OSObject * obj; + OSDictionary * allInts; + vm_offset_t * dtMap; + int propSize; + bool intMap; + bool freeDT; gIODTPlane = IORegistryEntry::makePlane( kIODeviceTreePlane ); @@ -146,7 +142,7 @@ IODeviceTreeAlloc( void * dtTop ) 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 { @@ -195,13 +191,16 @@ IODeviceTreeAlloc( void * dtTop ) } // 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; @@ -225,13 +224,35 @@ IODeviceTreeAlloc( void * dtTop ) 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); } @@ -566,19 +587,57 @@ UInt32 IODTMapOneInterrupt( IORegistryEntry * regEntry, UInt32 * intSpec, return( ok ? original_icells : 0 ); } -bool IODTMapInterrupts( IORegistryEntry * regEntry ) +IOReturn IODTGetInterruptOptions( IORegistryEntry * regEntry, int source, IOOptionBits * options ) { - 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; + 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; + OSData * map; + OSObject * oneMap; + OSArray * mapped; + OSArray * controllerInts; + const OSSymbol * controller; + OSArray * controllers; + UInt32 skip = 1; + bool ok, nw; nw = (0 == (local = OSDynamicCast( OSData, regEntry->getProperty( gIODTAAPLInterruptsKey)))); @@ -619,8 +678,47 @@ bool IODTMapInterrupts( IORegistryEntry * regEntry ) 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 +739,11 @@ bool IODTMapInterrupts( IORegistryEntry * regEntry ) return( ok ); } +bool IODTMapInterrupts( IORegistryEntry * regEntry ) +{ + return( IODTMapInterruptsSharing( regEntry, 0 )); +} + /* */ @@ -1080,3 +1183,8 @@ OSData * IODTFindSlotName( IORegistryEntry * regEntry, UInt32 deviceNumber ) return( ret ); } + +extern "C" IOReturn IONDRVLibrariesInitialize( IOService * provider ) +{ + return( kIOReturnUnsupported ); +}