iokit/Drivers/platform/drvApplePlatformExpert/AppleCPU.cpp

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
  30  *
  31  *  DRI: Josh de Cesare
  32  *
  33  */
  34
  35 #include "AppleCPU.h"
  36
  37 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  38
  39 #undef super
  40 #define super IOCPU
  41
  42 OSDefineMetaClassAndStructors(AppleCPU, IOCPU);
  43
  44 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  45
  46 bool AppleCPU::start(IOService *provider)
  47 {
  48   kern_return_t       result;
  49   ml_processor_info_t this_processor_info;
  50
  51   if (!super::start(provider)) return false;
  52
  53   cpuIC = new IOCPUInterruptController;
  54   if (cpuIC == 0) return false;
  55
  56   if (cpuIC->initCPUInterruptController(1) != kIOReturnSuccess) return false;
  57   cpuIC->attach(this);
  58
  59   cpuIC->registerCPUInterruptController();
  60
  61   this_processor_info.cpu_id           = (cpu_id_t)this;
  62   this_processor_info.boot_cpu         = true;
  63   this_processor_info.start_paddr      = 0;
  64   this_processor_info.supports_nap     = false;
  65   this_processor_info.l2cr_value       = 0;
  66   this_processor_info.time_base_enable = 0;
  67
  68   // Register this CPU with mach.
  69   result = ml_processor_register(
  70                                 &this_processor_info,
  71                                 &machProcessor,
  72                                 &ipi_handler);
  73   if (result == KERN_FAILURE) return false;
  74
  75   setCPUState(kIOCPUStateUninitalized);
  76
  77   processor_start(machProcessor);
  78
  79   registerService();
  80
  81   return true;
  82 }
  83
  84 void AppleCPU::initCPU(bool boot)
  85 {
  86   if (boot) {
  87     cpuIC->enableCPUInterrupt(this);
  88   }
  89
  90   setCPUState(kIOCPUStateRunning);
  91 }
  92
  93 void AppleCPU::quiesceCPU(void)
  94 {
  95   // Unsupported.
  96 }
  97
  98 kern_return_t AppleCPU::startCPU(vm_offset_t /*start_paddr*/,
  99                                  vm_offset_t /*arg_paddr*/)
 100 {
 101   return KERN_FAILURE;
 102 }
 103
 104 void AppleCPU::haltCPU(void)
 105 {
 106   // Unsupported.
 107 }
 108
 109 const OSSymbol *AppleCPU::getCPUName(void)
 110 {
 111   return OSSymbol::withCStringNoCopy("Primary0");
 112 }
 113
 114 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */