iokit/Drivers/platform/drvApplePlatformExpert/AppleCPU.cpp

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
  27  *
  28  *  DRI: Josh de Cesare
  29  *
  30  */
  31
  32 #include "AppleCPU.h"
  33
  34 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  35
  36 #undef super
  37 #define super IOCPU
  38
  39 OSDefineMetaClassAndStructors(AppleCPU, IOCPU);
  40
  41 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  42
  43 bool AppleCPU::start(IOService *provider)
  44 {
  45   kern_return_t       result;
  46   ml_processor_info_t processor_info;
  47
  48   if (!super::start(provider)) return false;
  49
  50   cpuIC = new IOCPUInterruptController;
  51   if (cpuIC == 0) return false;
  52
  53   if (cpuIC->initCPUInterruptController(1) != kIOReturnSuccess) return false;
  54   cpuIC->attach(this);
  55
  56   cpuIC->registerCPUInterruptController();
  57
  58   processor_info.cpu_id           = (cpu_id_t)this;
  59   processor_info.boot_cpu         = true;
  60   processor_info.start_paddr      = 0;
  61   processor_info.supports_nap     = false;
  62   processor_info.l2cr_value       = 0;
  63   processor_info.time_base_enable = 0;
  64
  65   // Register this CPU with mach.
  66   result = ml_processor_register(&processor_info, &machProcessor,
  67                                  &ipi_handler);
  68   if (result == KERN_FAILURE) return false;
  69
  70   setCPUState(kIOCPUStateUninitalized);
  71
  72   processor_start(machProcessor);
  73
  74   registerService();
  75
  76   return true;
  77 }
  78
  79 void AppleCPU::initCPU(bool boot)
  80 {
  81   if (boot) {
  82     cpuIC->enableCPUInterrupt(this);
  83   }
  84
  85   setCPUState(kIOCPUStateRunning);
  86 }
  87
  88 void AppleCPU::quiesceCPU(void)
  89 {
  90   // Unsupported.
  91 }
  92
  93 kern_return_t AppleCPU::startCPU(vm_offset_t /*start_paddr*/,
  94                                  vm_offset_t /*arg_paddr*/)
  95 {
  96   return KERN_FAILURE;
  97 }
  98
  99 void AppleCPU::haltCPU(void)
 100 {
 101   // Unsupported.
 102 }
 103
 104 const OSSymbol *AppleCPU::getCPUName(void)
 105 {
 106   return OSSymbol::withCStringNoCopy("Primary0");
 107 }
 108
 109 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */