Loading...
--- xnu/xnu-12377.101.15/iokit/Kernel/IOCPU.cpp
+++ xnu/xnu-201/iokit/Kernel/IOCPU.cpp
@@ -1,240 +1,81 @@
/*
- * Copyright (c) 1999-2016 Apple Inc. All rights reserved.
+ * Copyright (c) 1999-2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * 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.
- *
- * 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
+ * @APPLE_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 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) 1999-2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ * DRI: Josh de Cesare
+ *
*/
-#define IOKIT_ENABLE_SHARED_PTR
-
extern "C" {
+#include <machine/machine_routines.h>
#include <pexpert/pexpert.h>
-#include <kern/cpu_number.h>
-extern void kperf_kernel_configure(char *);
-}
-
-#include <machine/machine_routines.h>
+}
+
#include <IOKit/IOLib.h>
#include <IOKit/IOPlatformExpert.h>
-#include <IOKit/pwr_mgt/RootDomain.h>
-#include <IOKit/pwr_mgt/IOPMPrivate.h>
-#include <libkern/c++/OSSharedPtr.h>
#include <IOKit/IOUserClient.h>
-#include <IOKit/IOKitKeysPrivate.h>
#include <IOKit/IOCPU.h>
-#include "IOKitKernelInternal.h"
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <kern/queue.h>
-#include <kern/sched_prim.h>
-#include <kern/processor.h>
-
-extern "C" void console_suspend();
-extern "C" void console_resume();
-extern "C" void sched_override_available_cores_for_sleep(void);
-extern "C" void sched_restore_available_cores_after_sleep(void);
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-static IOLock *gIOCPUsLock;
-static OSSharedPtr<OSArray> gIOCPUs;
-static OSSharedPtr<const OSSymbol> gIOCPUStateKey;
-static OSSharedPtr<OSString> gIOCPUStateNames[kIOCPUStateCount];
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#if !USE_APPLEARMSMP
-
-void
-IOCPUInitialize(void)
-{
- gIOCPUsLock = IOLockAlloc();
- gIOCPUs = OSArray::withCapacity(1);
-
- gIOCPUStateKey = OSSymbol::withCStringNoCopy("IOCPUState");
-
- gIOCPUStateNames[kIOCPUStateUnregistered] =
- OSString::withCStringNoCopy("Unregistered");
- gIOCPUStateNames[kIOCPUStateUninitalized] =
- OSString::withCStringNoCopy("Uninitalized");
- gIOCPUStateNames[kIOCPUStateStopped] =
- OSString::withCStringNoCopy("Stopped");
- gIOCPUStateNames[kIOCPUStateRunning] =
- OSString::withCStringNoCopy("Running");
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-/*
- * This is IOKit KPI, but not used by anyone today.
- */
-kern_return_t __abortlike
-PE_cpu_start_from_kext(cpu_id_t target,
- __unused vm_offset_t start_paddr, __unused vm_offset_t arg_paddr)
-{
- panic("PE_cpu_start_from_kext unimplemented");
-}
-
-void
-PE_cpu_start_internal(cpu_id_t target,
- vm_offset_t start_paddr, vm_offset_t arg_paddr)
-{
- IOCPU *targetCPU = (IOCPU *)target;
-
- targetCPU->startCPU(start_paddr, arg_paddr);
-}
-
-/*
- * This is IOKit public KPI, though nothing uses it.
- */
-void __abortlike
-PE_cpu_halt(cpu_id_t target)
-{
- panic("PE_cpu_halt unimplemented");
-}
-
-void
-PE_cpu_signal(cpu_id_t source, cpu_id_t target)
-{
- IOCPU *sourceCPU = (IOCPU *)source;
- IOCPU *targetCPU = (IOCPU *)target;
-
- sourceCPU->signalCPU(targetCPU);
-}
-
-void
-PE_cpu_signal_deferred(cpu_id_t source, cpu_id_t target)
-{
- IOCPU *sourceCPU = (IOCPU *)source;
- IOCPU *targetCPU = (IOCPU *)target;
-
- sourceCPU->signalCPUDeferred(targetCPU);
-}
-
-void
-PE_cpu_signal_cancel(cpu_id_t source, cpu_id_t target)
-{
- IOCPU *sourceCPU = (IOCPU *)source;
- IOCPU *targetCPU = (IOCPU *)target;
-
- sourceCPU->signalCPUCancel(targetCPU);
-}
-
-void
-PE_cpu_machine_init(cpu_id_t target, boolean_t bootb)
-{
- IOCPU *targetCPU = OSDynamicCast(IOCPU, (OSObject *)target);
-
- if (targetCPU == NULL) {
- panic("%s: invalid target CPU %p", __func__, target);
- }
-
-#if defined(__arm64__)
- assert_ml_cpu_signal_is_enabled(false);
-#endif /* defined(__arm64__) */
-
- targetCPU->initCPU(bootb);
-
-#if defined(__arm64__)
- if (!bootb && (targetCPU->getCPUNumber() == (UInt32)boot_cpu_id)) {
- assert(ml_is_quiescing());
- }
-
- if (ml_get_interrupts_enabled()) {
- assert(bootb);
- assert3u(targetCPU->getCPUNumber(), ==, (UInt32)boot_cpu_id);
- /*
- * We want to assert that the AIC self-IPI actually arrives
- * here, but after much trials and tribulations, I found that
- * registering that interrupt handler is deeply entangled with
- * and asynchronous to the CPU booting, so it can only be a
- * 'hopefully it'll happen later' thing. We will still check
- * that it did happen before we next enter S2R.
- *
- * We'll publish that the boot processor can have timers
- * migrated to it a little earlier than it is truly ready,
- * but fortunately that only happens on next S2R, by which time
- * setup should have completed.
- */
- bool intr = ml_set_interrupts_enabled(FALSE);
-
- ml_cpu_up();
-
- ml_set_interrupts_enabled(intr);
- }
-#endif /* defined(__arm64__) */
-}
-
-void
-PE_cpu_machine_quiesce(cpu_id_t target)
-{
- IOCPU *targetCPU = (IOCPU*)target;
-#if defined(__arm64__)
- if (targetCPU->getCPUNumber() == (UInt32)boot_cpu_id) {
- assert(ml_is_quiescing());
- }
-#endif /* defined(__arm64__) */
- targetCPU->quiesceCPU();
-}
-
-#if defined(__arm64__)
-static perfmon_interrupt_handler_func pmi_handler = NULL;
-
-kern_return_t
-PE_cpu_perfmon_interrupt_install_handler(perfmon_interrupt_handler_func handler)
-{
- pmi_handler = handler;
-
- return KERN_SUCCESS;
-}
-
-void
-PE_cpu_perfmon_interrupt_enable(cpu_id_t target, boolean_t enable)
-{
- IOCPU *targetCPU = (IOCPU*)target;
-
- if (targetCPU == nullptr) {
- return;
- }
-
- if (enable) {
- targetCPU->getProvider()->registerInterrupt(1, targetCPU, (IOInterruptAction)(void (*)(void))pmi_handler, NULL);
- targetCPU->getProvider()->enableInterrupt(1);
- } else {
- targetCPU->getProvider()->disableInterrupt(1);
- }
-}
-#endif
-
-bool
-PE_cpu_power_check_kdp(int cpu_id)
-{
- return true;
-}
-
-#endif /* !USE_APPLEARMSMP */
+
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+kern_return_t PE_cpu_start(cpu_id_t target,
+ vm_offset_t start_paddr, vm_offset_t arg_paddr)
+{
+ IOCPU *targetCPU = OSDynamicCast(IOCPU, (OSObject *)target);
+
+ if (targetCPU == 0) return KERN_FAILURE;
+ return targetCPU->startCPU(start_paddr, arg_paddr);
+}
+
+void PE_cpu_halt(cpu_id_t target)
+{
+ IOCPU *targetCPU = OSDynamicCast(IOCPU, (OSObject *)target);
+
+ if (targetCPU) targetCPU->haltCPU();
+}
+
+void PE_cpu_signal(cpu_id_t source, cpu_id_t target)
+{
+ IOCPU *sourceCPU = OSDynamicCast(IOCPU, (OSObject *)source);
+ IOCPU *targetCPU = OSDynamicCast(IOCPU, (OSObject *)target);
+
+ if (sourceCPU && targetCPU) sourceCPU->signalCPU(targetCPU);
+}
+
+void PE_cpu_machine_init(cpu_id_t target, boolean_t boot)
+{
+ IOCPU *targetCPU = OSDynamicCast(IOCPU, (OSObject *)target);
+
+ if (targetCPU) targetCPU->initCPU(boot);
+}
+
+void PE_cpu_machine_quiesce(cpu_id_t target)
+{
+ IOCPU *targetCPU = OSDynamicCast(IOCPU, (OSObject *)target);
+
+ if (targetCPU) targetCPU->quiesceCPU();
+}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
@@ -252,329 +93,164 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-#if !USE_APPLEARMSMP
-void
-IOCPUSleepKernel(void)
-{
-#if defined(__x86_64__)
- extern IOCPU *currentShutdownTarget;
-#endif
- unsigned int cnt, numCPUs;
- IOCPU *target;
- IOCPU *bootCPU = NULL;
- IOPMrootDomain *rootDomain = IOService::getPMRootDomain();
-
- printf("IOCPUSleepKernel enter\n");
- sched_override_available_cores_for_sleep();
-
- rootDomain->tracePoint( kIOPMTracePointSleepPlatformActions );
- IOPlatformActionsPreSleep();
- rootDomain->tracePoint( kIOPMTracePointSleepCPUs );
-
- numCPUs = gIOCPUs->getCount();
-#if defined(__x86_64__)
- currentShutdownTarget = NULL;
-#endif
-
- integer_t old_pri;
- thread_t self = current_thread();
-
- /*
- * We need to boost this thread's priority to the maximum kernel priority to
- * ensure we can urgently preempt ANY thread currently executing on the
- * target CPU. Note that realtime threads have their own mechanism to eventually
- * demote their priority below MAXPRI_KERNEL if they hog the CPU for too long.
- */
- old_pri = thread_kern_get_pri(self);
- thread_kern_set_pri(self, thread_kern_get_kernel_maxpri());
-
- // Sleep the CPUs.
- ml_set_is_quiescing(true);
- cnt = numCPUs;
- while (cnt--) {
- target = OSDynamicCast(IOCPU, gIOCPUs->getObject(cnt));
-
- // We make certain that the bootCPU is the last to sleep
- // We'll skip it for now, and halt it after finishing the
- // non-boot CPU's.
- if (target->getCPUNumber() == (UInt32)boot_cpu_id) {
- bootCPU = target;
- } else if (target->getCPUState() == kIOCPUStateRunning) {
-#if defined(__x86_64__)
- currentShutdownTarget = target;
-#endif
- target->haltCPU();
- processor_sleep(target->getMachProcessor());
- }
- }
-
- assert(bootCPU != NULL);
- assert(cpu_number() == boot_cpu_id);
-
- console_suspend();
-
- rootDomain->tracePoint( kIOPMTracePointSleepPlatformDriver );
- rootDomain->stop_watchdog_timer();
-
- /*
- * Now sleep the boot CPU, including calling the kQueueQuiesce actions.
- * On Intel, the system sleeps here, and it does not actually sleep
- * the boot processor.
- */
-
- bootCPU->haltCPU();
-#if __arm64__
- /*
- * On ARM, we sleep the boot procesor, transitioning to the idle thread
- * and its interrupt stack drives the rest of sleep.
- */
- processor_sleep(bootCPU->getMachProcessor());
-#endif /* __arm64__ */
- ml_set_is_quiescing(false);
-
- /*
- * The system is now coming back from sleep on the boot CPU.
- * The kQueueActive actions have already been called.
- */
-
- rootDomain->start_watchdog_timer();
-
- console_resume();
-
- rootDomain->tracePoint( kIOPMTracePointWakeCPUs );
-
- // Wake the other CPUs.
- for (cnt = 0; cnt < numCPUs; cnt++) {
- target = OSDynamicCast(IOCPU, gIOCPUs->getObject(cnt));
-
- // Skip the already-woken boot CPU.
- if (target->getCPUNumber() != (UInt32)boot_cpu_id) {
- if (target->getCPUState() == kIOCPUStateRunning) {
- panic("Spurious wakeup of cpu %u", (unsigned int)(target->getCPUNumber()));
- }
-
- if (target->getCPUState() == kIOCPUStateStopped) {
- processor_wake(target->getMachProcessor());
- }
- }
- }
-
- rootDomain->tracePoint( kIOPMTracePointWakePlatformActions );
- IOPlatformActionsPostResume();
-
- sched_restore_available_cores_after_sleep();
-
- thread_kern_set_pri(self, old_pri);
- printf("IOCPUSleepKernel exit\n");
-}
-
-static bool
-is_IOCPU_disabled(void)
-{
- return false;
-}
-#else /* !USE_APPLEARMSMP */
-static bool
-is_IOCPU_disabled(void)
-{
- return true;
-}
-#endif /* !USE_APPLEARMSMP */
-
-bool
-IOCPU::start(IOService *provider)
-{
- if (is_IOCPU_disabled()) {
- return false;
- }
-
- if (!super::start(provider)) {
- return false;
- }
-
- _cpuGroup = gIOCPUs;
- cpuNub = provider;
-
- IOLockLock(gIOCPUsLock);
- gIOCPUs->setObject(this);
- IOLockUnlock(gIOCPUsLock);
-
- // Correct the bus, cpu and timebase frequencies in the device tree.
- if (gPEClockFrequencyInfo.bus_frequency_hz < 0x100000000ULL) {
- OSSharedPtr<OSData> busFrequency = OSData::withBytesNoCopy((void *)&gPEClockFrequencyInfo.bus_clock_rate_hz, 4);
- provider->setProperty("bus-frequency", busFrequency.get());
- } else {
- OSSharedPtr<OSData> busFrequency = OSData::withBytesNoCopy((void *)&gPEClockFrequencyInfo.bus_frequency_hz, 8);
- provider->setProperty("bus-frequency", busFrequency.get());
- }
-
- if (gPEClockFrequencyInfo.cpu_frequency_hz < 0x100000000ULL) {
- OSSharedPtr<OSData> cpuFrequency = OSData::withBytesNoCopy((void *)&gPEClockFrequencyInfo.cpu_clock_rate_hz, 4);
- provider->setProperty("clock-frequency", cpuFrequency.get());
- } else {
- OSSharedPtr<OSData> cpuFrequency = OSData::withBytesNoCopy((void *)&gPEClockFrequencyInfo.cpu_frequency_hz, 8);
- provider->setProperty("clock-frequency", cpuFrequency.get());
- }
-
- OSSharedPtr<OSData> timebaseFrequency = OSData::withBytesNoCopy((void *)&gPEClockFrequencyInfo.timebase_frequency_hz, 4);
- provider->setProperty("timebase-frequency", timebaseFrequency.get());
-
- super::setProperty("IOCPUID", getRegistryEntryID(), sizeof(uint64_t) * 8);
-
- setCPUNumber(0);
- setCPUState(kIOCPUStateUnregistered);
-
- return true;
-}
-
-void
-IOCPU::detach(IOService *provider)
-{
- if (is_IOCPU_disabled()) {
- return;
- }
-
- super::detach(provider);
- IOLockLock(gIOCPUsLock);
- unsigned int index = gIOCPUs->getNextIndexOfObject(this, 0);
- if (index != (unsigned int)-1) {
- gIOCPUs->removeObject(index);
- }
- IOLockUnlock(gIOCPUsLock);
-}
-
-OSObject *
-IOCPU::getProperty(const OSSymbol *aKey) const
-{
- if (aKey == gIOCPUStateKey) {
- return gIOCPUStateNames[_cpuState].get();
- }
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
- return super::getProperty(aKey);
-#pragma clang diagnostic pop
-}
-
-bool
-IOCPU::setProperty(const OSSymbol *aKey, OSObject *anObject)
-{
- if (aKey == gIOCPUStateKey) {
- return false;
- }
-
- return super::setProperty(aKey, anObject);
-}
-
-bool
-IOCPU::serializeProperties(OSSerialize *serialize) const
-{
- bool result;
- OSSharedPtr<OSDictionary> dict = dictionaryWithProperties();
- if (!dict) {
- return false;
- }
- dict->setObject(gIOCPUStateKey.get(), gIOCPUStateNames[_cpuState].get());
- result = dict->serialize(serialize);
- return result;
-}
-
-IOReturn
-IOCPU::setProperties(OSObject *properties)
-{
- OSDictionary *dict = OSDynamicCast(OSDictionary, properties);
- OSString *stateStr;
- IOReturn result;
-
- if (dict == NULL) {
- return kIOReturnUnsupported;
- }
-
- stateStr = OSDynamicCast(OSString, dict->getObject(gIOCPUStateKey.get()));
- if (stateStr != NULL) {
- result = IOUserClient::clientHasPrivilege(current_task(), kIOClientPrivilegeAdministrator);
- if (result != kIOReturnSuccess) {
- return result;
- }
-
- if (setProperty(gIOCPUStateKey.get(), stateStr)) {
- return kIOReturnSuccess;
- }
-
- return kIOReturnUnsupported;
- }
-
+static OSArray *gIOCPUs;
+static const OSSymbol *gIOCPUStateKey;
+static OSString *gIOCPUStateNames[kIOCPUStateCount];
+
+void IOCPUSleepKernel(void)
+{
+ long cnt, numCPUs;
+ IOCPU *target;
+
+ numCPUs = gIOCPUs->getCount();
+
+ // Sleep the CPUs.
+ cnt = numCPUs;
+ while (cnt--) {
+ target = OSDynamicCast(IOCPU, gIOCPUs->getObject(cnt));
+ if (target->getCPUState() == kIOCPUStateRunning) {
+ target->haltCPU();
+ }
+ }
+
+ // Wake the other CPUs.
+ for (cnt = 1; cnt < numCPUs; cnt++) {
+ target = OSDynamicCast(IOCPU, gIOCPUs->getObject(cnt));
+ if (target->getCPUState() == kIOCPUStateStopped) {
+ processor_start(target->getMachProcessor());
+ }
+ }
+}
+
+void IOCPU::initCPUs(void)
+{
+ if (gIOCPUs == 0) {
+ gIOCPUs = OSArray::withCapacity(1);
+
+ gIOCPUStateKey = OSSymbol::withCStringNoCopy("IOCPUState");
+
+ gIOCPUStateNames[kIOCPUStateUnregistered] =
+ OSString::withCStringNoCopy("Unregistered");
+ gIOCPUStateNames[kIOCPUStateUninitalized] =
+ OSString::withCStringNoCopy("Uninitalized");
+ gIOCPUStateNames[kIOCPUStateStopped] =
+ OSString::withCStringNoCopy("Stopped");
+ gIOCPUStateNames[kIOCPUStateRunning] =
+ OSString::withCStringNoCopy("Running");
+ }
+}
+
+bool IOCPU::start(IOService *provider)
+{
+ OSData *busFrequency, *cpuFrequency, *decFrequency;
+
+ if (!super::start(provider)) return false;
+
+ initCPUs();
+
+ _cpuGroup = gIOCPUs;
+ cpuNub = provider;
+
+ gIOCPUs->setObject(this);
+
+ // Correct the bus, cpu and dec frequencies in the device tree.
+ busFrequency = OSData::withBytesNoCopy((void *)&gPEClockFrequencyInfo.bus_clock_rate_hz, 4);
+ cpuFrequency = OSData::withBytesNoCopy((void *)&gPEClockFrequencyInfo.cpu_clock_rate_hz, 4);
+ decFrequency = OSData::withBytesNoCopy((void *)&gPEClockFrequencyInfo.dec_clock_rate_hz, 4);
+ provider->setProperty("bus-frequency", busFrequency);
+ provider->setProperty("clock-frequency", cpuFrequency);
+ provider->setProperty("timebase-frequency", decFrequency);
+ busFrequency->release();
+ cpuFrequency->release();
+ decFrequency->release();
+
+ setProperty("IOCPUID", (UInt32)this, 32);
+
+ setCPUNumber(0);
+ setCPUState(kIOCPUStateUnregistered);
+
+ return true;
+}
+
+IOReturn IOCPU::setProperties(OSObject *properties)
+{
+ OSDictionary *dict = OSDynamicCast(OSDictionary, properties);
+ OSString *stateStr;
+
+ if (dict == 0) return kIOReturnUnsupported;
+
+ stateStr = OSDynamicCast(OSString, dict->getObject(gIOCPUStateKey));
+ if (stateStr != 0) {
+ if (!IOUserClient::clientHasPrivilege(current_task(), "root"))
+ return kIOReturnNotPrivileged;
+
+ if (_cpuNumber == 0) return kIOReturnUnsupported;
+
+ if (stateStr->isEqualTo("running")) {
+ if (_cpuState == kIOCPUStateStopped) {
+ processor_start(machProcessor);
+ } else if (_cpuState != kIOCPUStateRunning) {
return kIOReturnUnsupported;
-}
-
-void
-IOCPU::signalCPU(IOCPU */*target*/)
-{
-}
-
-void
-IOCPU::signalCPUDeferred(IOCPU *target)
-{
- // Our CPU may not support deferred IPIs,
- // so send a regular IPI by default
- signalCPU(target);
-}
-
-void
-IOCPU::signalCPUCancel(IOCPU */*target*/)
-{
- // Meant to cancel signals sent by
- // signalCPUDeferred; unsupported
- // by default
-}
-
-void
-IOCPU::enableCPUTimeBase(bool /*enable*/)
-{
-}
-
-UInt32
-IOCPU::getCPUNumber(void)
-{
- return _cpuNumber;
-}
-
-void
-IOCPU::setCPUNumber(UInt32 cpuNumber)
-{
- _cpuNumber = cpuNumber;
- super::setProperty("IOCPUNumber", _cpuNumber, 32);
-}
-
-UInt32
-IOCPU::getCPUState(void)
-{
- return _cpuState;
-}
-
-void
-IOCPU::setCPUState(UInt32 cpuState)
-{
- if (cpuState < kIOCPUStateCount) {
- _cpuState = cpuState;
- }
-}
-
-OSArray *
-IOCPU::getCPUGroup(void)
-{
- return _cpuGroup.get();
-}
-
-UInt32
-IOCPU::getCPUGroupSize(void)
-{
- return _cpuGroup->getCount();
-}
-
-processor_t
-IOCPU::getMachProcessor(void)
-{
- return machProcessor;
+ }
+ } else if (stateStr->isEqualTo("stopped")) {
+ if (_cpuState == kIOCPUStateRunning) {
+ haltCPU();
+ } else if (_cpuState != kIOCPUStateStopped) {
+ return kIOReturnUnsupported;
+ }
+ } else return kIOReturnUnsupported;
+
+ return kIOReturnSuccess;
+ }
+
+ return kIOReturnUnsupported;
+}
+
+void IOCPU::signalCPU(IOCPU */*target*/)
+{
+}
+
+void IOCPU::enableCPUTimeBase(bool /*enable*/)
+{
+}
+
+UInt32 IOCPU::getCPUNumber(void)
+{
+ return _cpuNumber;
+}
+
+void IOCPU::setCPUNumber(UInt32 cpuNumber)
+{
+ _cpuNumber = cpuNumber;
+ setProperty("IOCPUNumber", _cpuNumber, 32);
+}
+
+UInt32 IOCPU::getCPUState(void)
+{
+ return _cpuState;
+}
+
+void IOCPU::setCPUState(UInt32 cpuState)
+{
+ if ((cpuState >= 0) && (cpuState < kIOCPUStateCount)) {
+ _cpuState = cpuState;
+ setProperty(gIOCPUStateKey, gIOCPUStateNames[cpuState]);
+ }
+}
+
+OSArray *IOCPU::getCPUGroup(void)
+{
+ return _cpuGroup;
+}
+
+UInt32 IOCPU::getCPUGroupSize(void)
+{
+ return _cpuGroup->getCount();
+}
+
+processor_t IOCPU::getMachProcessor(void)
+{
+ return machProcessor;
}
@@ -585,6 +261,7 @@
OSDefineMetaClassAndStructors(IOCPUInterruptController, IOInterruptController);
+OSMetaClassDefineReservedUnused(IOCPUInterruptController, 0);
OSMetaClassDefineReservedUnused(IOCPUInterruptController, 1);
OSMetaClassDefineReservedUnused(IOCPUInterruptController, 2);
OSMetaClassDefineReservedUnused(IOCPUInterruptController, 3);
@@ -595,214 +272,175 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-IOReturn
-IOCPUInterruptController::initCPUInterruptController(int sources)
-{
- return initCPUInterruptController(sources, sources);
-}
-
-IOReturn
-IOCPUInterruptController::initCPUInterruptController(int sources, int cpus)
-{
- int cnt;
-
- if (!super::init()) {
- return kIOReturnInvalid;
- }
-
- numSources = sources;
- numCPUs = cpus;
-
- vectors = (IOInterruptVector *)zalloc_permanent(numSources *
- sizeof(IOInterruptVector), ZALIGN(IOInterruptVector));
-
- // Allocate a lock for each vector
- for (cnt = 0; cnt < numSources; cnt++) {
- vectors[cnt].interruptLock = IOLockAlloc();
- if (vectors[cnt].interruptLock == NULL) {
- for (cnt = 0; cnt < numSources; cnt++) {
- if (vectors[cnt].interruptLock != NULL) {
- IOLockFree(vectors[cnt].interruptLock);
- }
- }
- return kIOReturnNoResources;
- }
- }
-
- ml_set_max_cpus(numSources);
- return kIOReturnSuccess;
-}
-
-void
-IOCPUInterruptController::registerCPUInterruptController(void)
-{
- setProperty(gPlatformInterruptControllerName, kOSBooleanTrue);
- registerService();
-
- getPlatform()->registerInterruptController(gPlatformInterruptControllerName,
- this);
-}
-
-void
-IOCPUInterruptController::setCPUInterruptProperties(IOService *service)
-{
- int cnt;
- OSSharedPtr<OSArray> specifier;
- OSSharedPtr<OSArray> controller;
- long tmpLong;
-
- if ((service->propertyExists(gIOInterruptControllersKey)) &&
- (service->propertyExists(gIOInterruptSpecifiersKey))) {
- return;
- }
-
- // Create the interrupt specifer array.
- specifier = OSArray::withCapacity(numSources);
- for (cnt = 0; cnt < numSources; cnt++) {
- tmpLong = cnt;
- OSSharedPtr<OSData> tmpData = OSData::withValue(tmpLong);
- specifier->setObject(tmpData.get());
- }
-
- // Create the interrupt controller array.
- controller = OSArray::withCapacity(numSources);
- for (cnt = 0; cnt < numSources; cnt++) {
- controller->setObject(gPlatformInterruptControllerName);
- }
-
- // Put the two arrays into the property table.
- service->setProperty(gIOInterruptControllersKey, controller.get());
- service->setProperty(gIOInterruptSpecifiersKey, specifier.get());
-}
-
-void
-IOCPUInterruptController::enableCPUInterrupt(IOCPU *cpu)
-{
- IOInterruptHandler handler = OSMemberFunctionCast(
- IOInterruptHandler, this, &IOCPUInterruptController::handleInterrupt);
-
- assert(numCPUs > 0);
-
- ml_install_interrupt_handler(cpu, cpu->getCPUNumber(), this, handler, NULL);
-
- IOTakeLock(vectors[0].interruptLock);
- ++enabledCPUs;
-
- if (enabledCPUs == numCPUs) {
- IOService::cpusRunning();
- thread_wakeup(this);
- }
- IOUnlock(vectors[0].interruptLock);
-}
-
-IOReturn
-IOCPUInterruptController::registerInterrupt(IOService *nub,
- int source,
- void *target,
- IOInterruptHandler handler,
- void *refCon)
-{
- IOInterruptVector *vector;
-
- // Interrupts must be enabled, as this can allocate memory.
- assert(ml_get_interrupts_enabled() == TRUE);
-
- if (source >= numSources) {
- return kIOReturnNoResources;
- }
-
- vector = &vectors[source];
-
- // Get the lock for this vector.
- IOTakeLock(vector->interruptLock);
-
- // Make sure the vector is not in use.
- if (vector->interruptRegistered) {
- IOUnlock(vector->interruptLock);
- return kIOReturnNoResources;
- }
-
- // Fill in vector with the client's info.
- vector->handler = handler;
- vector->nub = nub;
- vector->source = source;
- vector->target = target;
- vector->refCon = refCon;
-
- // Get the vector ready. It starts hard disabled.
- vector->interruptDisabledHard = 1;
- vector->interruptDisabledSoft = 1;
- vector->interruptRegistered = 1;
-
- IOUnlock(vector->interruptLock);
-
- IOTakeLock(vectors[0].interruptLock);
- if (enabledCPUs != numCPUs) {
- assert_wait(this, THREAD_UNINT);
- IOUnlock(vectors[0].interruptLock);
- thread_block(THREAD_CONTINUE_NULL);
- } else {
- IOUnlock(vectors[0].interruptLock);
- }
-
- return kIOReturnSuccess;
-}
-
-IOReturn
-IOCPUInterruptController::getInterruptType(IOService */*nub*/,
- int /*source*/,
- int *interruptType)
-{
- if (interruptType == NULL) {
- return kIOReturnBadArgument;
- }
-
- *interruptType = kIOInterruptTypeLevel;
-
- return kIOReturnSuccess;
-}
-
-IOReturn
-IOCPUInterruptController::enableInterrupt(IOService */*nub*/,
- int /*source*/)
+
+IOReturn IOCPUInterruptController::initCPUInterruptController(int sources)
+{
+ int cnt;
+
+ if (!super::init()) return kIOReturnInvalid;
+
+ numCPUs = sources;
+
+ cpus = (IOCPU **)IOMalloc(numCPUs * sizeof(IOCPU *));
+ if (cpus == 0) return kIOReturnNoMemory;
+ bzero(cpus, numCPUs * sizeof(IOCPU *));
+
+ vectors = (IOInterruptVector *)IOMalloc(numCPUs * sizeof(IOInterruptVector));
+ if (vectors == 0) return kIOReturnNoMemory;
+ bzero(vectors, numCPUs * sizeof(IOInterruptVector));
+
+ // Allocate locks for the
+ for (cnt = 0; cnt < numCPUs; cnt++) {
+ vectors[cnt].interruptLock = IOLockAlloc();
+ if (vectors[cnt].interruptLock == NULL) {
+ for (cnt = 0; cnt < numCPUs; cnt++) {
+ if (vectors[cnt].interruptLock != NULL)
+ IOLockFree(vectors[cnt].interruptLock);
+ }
+ return kIOReturnNoResources;
+ }
+ }
+
+ return kIOReturnSuccess;
+}
+
+void IOCPUInterruptController::registerCPUInterruptController(void)
+{
+ registerService();
+
+ getPlatform()->registerInterruptController(gPlatformInterruptControllerName,
+ this);
+}
+
+void IOCPUInterruptController::setCPUInterruptProperties(IOService *service)
+{
+ int cnt;
+ OSArray *controller;
+ OSArray *specifier;
+ OSData *tmpData;
+ long tmpLong;
+
+ // Create the interrupt specifer array.
+ specifier = OSArray::withCapacity(numCPUs);
+ for (cnt = 0; cnt < numCPUs; cnt++) {
+ tmpLong = cnt;
+ tmpData = OSData::withBytes(&tmpLong, sizeof(tmpLong));
+ specifier->setObject(tmpData);
+ tmpData->release();
+ };
+
+ // Create the interrupt controller array.
+ controller = OSArray::withCapacity(numCPUs);
+ for (cnt = 0; cnt < numCPUs; cnt++) {
+ controller->setObject(gPlatformInterruptControllerName);
+ }
+
+ // Put the two arrays into the property table.
+ service->setProperty(gIOInterruptControllersKey, controller);
+ service->setProperty(gIOInterruptSpecifiersKey, specifier);
+ controller->release();
+ specifier->release();
+}
+
+void IOCPUInterruptController::enableCPUInterrupt(IOCPU *cpu)
+{
+ ml_install_interrupt_handler(cpu, cpu->getCPUNumber(), this,
+ (IOInterruptHandler)&IOCPUInterruptController::handleInterrupt, 0);
+
+ enabledCPUs++;
+
+ if (enabledCPUs == numCPUs) thread_wakeup(this);
+}
+
+IOReturn IOCPUInterruptController::registerInterrupt(IOService *nub,
+ int source,
+ void *target,
+ IOInterruptHandler handler,
+ void *refCon)
+{
+ IOInterruptVector *vector;
+
+ if (source >= numCPUs) return kIOReturnNoResources;
+
+ vector = &vectors[source];
+
+ // Get the lock for this vector.
+ IOTakeLock(vector->interruptLock);
+
+ // Make sure the vector is not in use.
+ if (vector->interruptRegistered) {
+ IOUnlock(vector->interruptLock);
+ return kIOReturnNoResources;
+ }
+
+ // Fill in vector with the client's info.
+ vector->handler = handler;
+ vector->nub = nub;
+ vector->source = source;
+ vector->target = target;
+ vector->refCon = refCon;
+
+ // Get the vector ready. It starts hard disabled.
+ vector->interruptDisabledHard = 1;
+ vector->interruptDisabledSoft = 1;
+ vector->interruptRegistered = 1;
+
+ IOUnlock(vector->interruptLock);
+
+ if (enabledCPUs != numCPUs) {
+ assert_wait(this, THREAD_UNINT);
+ thread_block(0);
+ }
+
+ return kIOReturnSuccess;
+}
+
+IOReturn IOCPUInterruptController::getInterruptType(IOService */*nub*/,
+ int /*source*/,
+ int *interruptType)
+{
+ if (interruptType == 0) return kIOReturnBadArgument;
+
+ *interruptType = kIOInterruptTypeLevel;
+
+ return kIOReturnSuccess;
+}
+
+IOReturn IOCPUInterruptController::enableInterrupt(IOService */*nub*/,
+ int /*source*/)
{
// ml_set_interrupts_enabled(true);
- return kIOReturnSuccess;
-}
-
-IOReturn
-IOCPUInterruptController::disableInterrupt(IOService */*nub*/,
- int /*source*/)
+ return kIOReturnSuccess;
+}
+
+IOReturn IOCPUInterruptController::disableInterrupt(IOService */*nub*/,
+ int /*source*/)
{
// ml_set_interrupts_enabled(false);
- return kIOReturnSuccess;
-}
-
-IOReturn
-IOCPUInterruptController::causeInterrupt(IOService */*nub*/,
- int /*source*/)
-{
- ml_cause_interrupt();
- return kIOReturnSuccess;
-}
-
-IOReturn
-IOCPUInterruptController::handleInterrupt(void */*refCon*/,
- IOService */*nub*/,
- int source)
-{
- IOInterruptVector *vector;
-
- vector = &vectors[source];
-
- if (!vector->interruptRegistered) {
- return kIOReturnInvalid;
- }
-
- vector->handler(vector->target, vector->refCon,
- vector->nub, vector->source);
-
- return kIOReturnSuccess;
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+ return kIOReturnSuccess;
+}
+
+IOReturn IOCPUInterruptController::causeInterrupt(IOService */*nub*/,
+ int /*source*/)
+{
+ ml_cause_interrupt();
+ return kIOReturnSuccess;
+}
+
+IOReturn IOCPUInterruptController::handleInterrupt(void */*refCon*/,
+ IOService */*nub*/,
+ int source)
+{
+ IOInterruptVector *vector;
+
+ vector = &vectors[source];
+
+ if (!vector->interruptRegistered) return kIOReturnInvalid;
+
+ vector->handler(vector->target, vector->refCon,
+ vector->nub, vector->source);
+
+ return kIOReturnSuccess;
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */