* Copyright (c) 2000-2009 Apple 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
* 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
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* cpu specific routines
*/
-#include <kern/kalloc.h>
#include <kern/misc_protos.h>
+#include <kern/lock_group.h>
#include <kern/machine.h>
#include <mach/processor_info.h>
+#include <i386/pmap.h>
#include <i386/machine_cpu.h>
#include <i386/machine_routines.h>
-#include <i386/pmap.h>
#include <i386/misc_protos.h>
#include <i386/cpu_threads.h>
-#include <i386/rtclock.h>
+#include <i386/rtclock_protos.h>
+#include <i386/cpuid.h>
+#if CONFIG_VMX
+#include <i386/vmx/vmx_cpu.h>
+#endif
#include <vm/vm_kern.h>
-#include "cpuid.h"
+#include <kern/timer_call.h>
+
+const char *processor_to_datastring(const char *prefix, processor_t target_processor);
-struct processor processor_master;
+struct processor processor_master;
/*ARGSUSED*/
kern_return_t
cpu_control(
- int slot_num,
- processor_info_t info,
- unsigned int count)
+ int slot_num,
+ processor_info_t info,
+ unsigned int count)
{
printf("cpu_control(%d,%p,%d) not implemented\n",
- slot_num, info, count);
- return (KERN_FAILURE);
+ slot_num, info, count);
+ return KERN_FAILURE;
}
/*ARGSUSED*/
kern_return_t
cpu_info_count(
- __unused processor_flavor_t flavor,
- unsigned int *count)
+ __unused processor_flavor_t flavor,
+ unsigned int *count)
{
*count = 0;
- return (KERN_FAILURE);
+ return KERN_FAILURE;
}
/*ARGSUSED*/
kern_return_t
cpu_info(
- processor_flavor_t flavor,
- int slot_num,
- processor_info_t info,
- unsigned int *count)
+ processor_flavor_t flavor,
+ int slot_num,
+ processor_info_t info,
+ unsigned int *count)
{
printf("cpu_info(%d,%d,%p,%p) not implemented\n",
- flavor, slot_num, info, count);
- return (KERN_FAILURE);
+ flavor, slot_num, info, count);
+ return KERN_FAILURE;
}
void
cpu_sleep(void)
{
- cpu_data_t *cdp = current_cpu_datap();
-
- i386_deactivate_cpu();
+ cpu_data_t *cdp = current_cpu_datap();
+ /* This calls IOCPURunPlatformQuiesceActions when sleeping the boot cpu */
PE_cpu_machine_quiesce(cdp->cpu_id);
cpu_thread_halt();
void
cpu_init(void)
{
- cpu_data_t *cdp = current_cpu_datap();
+ cpu_data_t *cdp = current_cpu_datap();
+
+ timer_call_queue_init(&cdp->rtclock_timer.queue);
+ cdp->rtclock_timer.deadline = EndOfAllTime;
cdp->cpu_type = cpuid_cputype();
cdp->cpu_subtype = cpuid_cpusubtype();
cpu_start(
int cpu)
{
- kern_return_t ret;
+ kern_return_t ret;
if (cpu == cpu_number()) {
cpu_machine_init();
ret = intel_startCPU(cpu);
}
- if (ret != KERN_SUCCESS)
+ if (ret != KERN_SUCCESS) {
kprintf("cpu: cpu_start(%d) returning failure!\n", cpu);
+ }
- return(ret);
+ return ret;
}
void
cpu_exit_wait(
int cpu)
{
- cpu_data_t *cdp = cpu_datap(cpu);
+ cpu_data_t *cdp = cpu_datap(cpu);
+ boolean_t intrs_enabled;
+ uint64_t tsc_timeout;
/*
* Wait until the CPU indicates that it has stopped.
+ * Disable interrupts while the topo lock is held -- arguably
+ * this should always be done but in this instance it can lead to
+ * a timeout if long-running interrupt were to occur here.
*/
- simple_lock(&x86_topo_lock);
+ intrs_enabled = ml_set_interrupts_enabled(FALSE);
+ mp_safe_spin_lock(&x86_topo_lock);
+ /* Set a generous timeout of several seconds (in TSC ticks) */
+ tsc_timeout = rdtsc64() + (10ULL * 1000 * 1000 * 1000);
while ((cdp->lcpu.state != LCPU_HALT)
- && (cdp->lcpu.state != LCPU_OFF)
- && !cdp->lcpu.stopped) {
- simple_unlock(&x86_topo_lock);
- cpu_pause();
- simple_lock(&x86_topo_lock);
+ && (cdp->lcpu.state != LCPU_OFF)
+ && !cdp->lcpu.stopped) {
+ simple_unlock(&x86_topo_lock);
+ ml_set_interrupts_enabled(intrs_enabled);
+ cpu_pause();
+ if (rdtsc64() > tsc_timeout) {
+ panic("cpu_exit_wait(%d) timeout", cpu);
+ }
+ ml_set_interrupts_enabled(FALSE);
+ mp_safe_spin_lock(&x86_topo_lock);
}
simple_unlock(&x86_topo_lock);
+ ml_set_interrupts_enabled(intrs_enabled);
}
void
cpu_machine_init(
void)
{
- cpu_data_t *cdp = current_cpu_datap();
+ cpu_data_t *cdp = current_cpu_datap();
PE_cpu_machine_init(cdp->cpu_id, !cdp->cpu_boot_complete);
cdp->cpu_boot_complete = TRUE;
cdp->cpu_running = TRUE;
-#if 0
- if (cpu_datap(cpu)->hibernate)
- {
- cpu_datap(cpu)->hibernate = 0;
- hibernate_machine_init();
- }
-#endif
ml_init_interrupt();
- /* for every CPU, get the VT specs */
- vmx_get_specs();
-}
-
-processor_t
-cpu_processor_alloc(boolean_t is_boot_cpu)
-{
- int ret;
- processor_t proc;
-
- if (is_boot_cpu)
- return &processor_master;
-
- ret = kmem_alloc(kernel_map, (vm_offset_t *) &proc, sizeof(*proc));
- if (ret != KERN_SUCCESS)
- return NULL;
-
- bzero((void *) proc, sizeof(*proc));
- return proc;
-}
-
-void
-cpu_processor_free(processor_t proc)
-{
- if (proc != NULL && proc != &processor_master)
- kfree((void *) proc, sizeof(*proc));
+#if CONFIG_VMX
+ /* initialize VMX for every CPU */
+ vmx_cpu_init();
+#endif
}
processor_t
processor_t
cpu_to_processor(
- int cpu)
+ int cpu)
{
return cpu_datap(cpu)->cpu_processor;
}
ast_t *
ast_pending(void)
{
- return (¤t_cpu_datap()->cpu_pending_ast);
+ return ¤t_cpu_datap()->cpu_pending_ast;
}
cpu_type_t
slot_type(
- int slot_num)
+ int slot_num)
{
- return (cpu_datap(slot_num)->cpu_type);
+ return cpu_datap(slot_num)->cpu_type;
}
cpu_subtype_t
slot_subtype(
- int slot_num)
+ int slot_num)
{
- return (cpu_datap(slot_num)->cpu_subtype);
+ return cpu_datap(slot_num)->cpu_subtype;
}
cpu_threadtype_t
slot_threadtype(
- int slot_num)
+ int slot_num)
{
- return (cpu_datap(slot_num)->cpu_threadtype);
+ return cpu_datap(slot_num)->cpu_threadtype;
}
cpu_type_t
cpu_type(void)
{
- return (current_cpu_datap()->cpu_type);
+ return current_cpu_datap()->cpu_type;
}
cpu_subtype_t
cpu_subtype(void)
{
- return (current_cpu_datap()->cpu_subtype);
+ return current_cpu_datap()->cpu_subtype;
}
cpu_threadtype_t
cpu_threadtype(void)
{
- return (current_cpu_datap()->cpu_threadtype);
+ return current_cpu_datap()->cpu_threadtype;
+}
+
+const char *
+processor_to_datastring(const char *prefix, processor_t target_processor)
+{
+ static char printBuf[256];
+ uint32_t cpu_num = target_processor->cpu_id;
+
+ cpu_data_t *cpup = cpu_datap(cpu_num);
+ thread_t act;
+
+ act = ml_validate_nofault((vm_offset_t)cpup->cpu_active_thread,
+ sizeof(struct thread)) ? cpup->cpu_active_thread : NULL;
+
+ snprintf(printBuf, sizeof(printBuf),
+ "%s: tCPU %u (%d) [tid=0x%llx(bp=%d sp=%d) s=0x%x ps=0x%x cpa=0x%x spa=0x%llx pl=%d il=%d r=%d]",
+ prefix,
+ cpu_num,
+ target_processor->state,
+ act ? act->thread_id : ~0ULL,
+ act ? act->base_pri : -1,
+ act ? act->sched_pri : -1,
+ cpup->cpu_signals,
+ cpup->cpu_prior_signals,
+ cpup->cpu_pending_ast,
+ target_processor->processor_set->pending_AST_URGENT_cpu_mask,
+ cpup->cpu_preemption_level,
+ cpup->cpu_interrupt_level,
+ cpup->cpu_running);
+
+ return (const char *)&printBuf[0];
}
projects / apple / xnu.git / blobdiff