/*
- * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <kern/cpu_data.h>
#include <kern/cpu_number.h>
#include <kern/thread.h>
-#include <i386/cpu_data.h>
#include <i386/machine_cpu.h>
#include <i386/lapic.h>
#include <i386/mp_events.h>
-#include <i386/pmap.h>
-#include <i386/misc_protos.h>
#include <i386/pmCPU.h>
-#include <i386/proc_reg.h>
#include <i386/tsc.h>
#include <i386/cpu_threads.h>
+#include <i386/proc_reg.h>
#include <mach/vm_param.h>
+#include <i386/pmap.h>
+#include <i386/misc_protos.h>
#if MACH_KDB
-#include <i386/db_machdep.h>
+#include <machine/db_machdep.h>
#include <ddb/db_aout.h>
#include <ddb/db_access.h>
#include <ddb/db_sym.h>
#define DBG(x...)
#endif
-extern thread_t Shutdown_context(thread_t thread, void (*doshutdown)(processor_t),processor_t processor);
+
extern void wakeup(void *);
-extern unsigned KernelRelocOffset;
static int max_cpus_initialized = 0;
unsigned int LockTimeOut;
unsigned int LockTimeOutTSC;
unsigned int MutexSpin;
+uint64_t LastDebuggerEntryAllowance;
#define MAX_CPUS_SET 0x1
#define MAX_CPUS_WAIT 0x2
}
-vm_offset_t
-ml_boot_ptovirt(
- vm_offset_t paddr)
-{
- return (vm_offset_t)((paddr-KernelRelocOffset) | LINEAR_KERNEL_ADDRESS);
-}
-
vm_offset_t
ml_static_ptovirt(
vm_offset_t paddr)
{
- return (vm_offset_t)((unsigned) paddr | LINEAR_KERNEL_ADDRESS);
+#if defined(__x86_64__)
+ return (vm_offset_t)(((unsigned long) paddr) | VM_MIN_KERNEL_ADDRESS);
+#else
+ return (vm_offset_t)((paddr) | LINEAR_KERNEL_ADDRESS);
+#endif
}
vm_offset_t vaddr,
vm_size_t size)
{
- vm_offset_t vaddr_cur;
+ addr64_t vaddr_cur;
ppnum_t ppn;
-// if (vaddr < VM_MIN_KERNEL_ADDRESS) return;
+ assert(vaddr >= VM_MIN_KERNEL_ADDRESS);
assert((vaddr & (PAGE_SIZE-1)) == 0); /* must be page aligned */
+
for (vaddr_cur = vaddr;
- vaddr_cur < round_page_32(vaddr+size);
+ vaddr_cur < round_page_64(vaddr+size);
vaddr_cur += PAGE_SIZE) {
- ppn = pmap_find_phys(kernel_pmap, (addr64_t)vaddr_cur);
+ ppn = pmap_find_phys(kernel_pmap, vaddr_cur);
if (ppn != (vm_offset_t)NULL) {
kernel_pmap->stats.resident_count++;
if (kernel_pmap->stats.resident_count >
kernel_pmap->stats.resident_max =
kernel_pmap->stats.resident_count;
}
- pmap_remove(kernel_pmap, (addr64_t)vaddr_cur, (addr64_t)(vaddr_cur+PAGE_SIZE));
+ pmap_remove(kernel_pmap, vaddr_cur, vaddr_cur+PAGE_SIZE);
vm_page_create(ppn,(ppn+1));
vm_page_wire_count--;
}
vm_offset_t ml_vtophys(
vm_offset_t vaddr)
{
- return kvtophys(vaddr);
+ return (vm_offset_t)kvtophys(vaddr);
}
/*
break;
if (!pmap_valid_page(i386_btop(cur_phys_dst)) || !pmap_valid_page(i386_btop(cur_phys_src)))
break;
- count = PAGE_SIZE - (cur_phys_src & PAGE_MASK);
+ count = (uint32_t)(PAGE_SIZE - (cur_phys_src & PAGE_MASK));
if (count > (PAGE_SIZE - (cur_phys_dst & PAGE_MASK)))
- count = PAGE_SIZE - (cur_phys_dst & PAGE_MASK);
+ count = (uint32_t)(PAGE_SIZE - (cur_phys_dst & PAGE_MASK));
if (count > size)
- count = size;
+ count = (uint32_t)size;
bcopy_phys(cur_phys_src, cur_phys_dst, count);
(void) ml_set_interrupts_enabled(TRUE);
}
+
+
/* Get Interrupts Enabled */
boolean_t ml_get_interrupts_enabled(void)
{
unsigned long flags;
- __asm__ volatile("pushf; popl %0" : "=r" (flags));
+ __asm__ volatile("pushf; pop %0" : "=r" (flags));
return (flags & EFL_IF) != 0;
}
{
unsigned long flags;
- __asm__ volatile("pushf; popl %0" : "=r" (flags));
+ __asm__ volatile("pushf; pop %0" : "=r" (flags));
if (enable) {
ast_t *myast;
machine_signal_idle(
processor_t processor)
{
- cpu_interrupt(PROCESSOR_DATA(processor, slot_num));
+ cpu_interrupt(processor->cpu_id);
}
-thread_t
-machine_processor_shutdown(
- thread_t thread,
- void (*doshutdown)(processor_t),
- processor_t processor)
-{
- vmx_suspend();
- fpu_save_context(thread);
- return(Shutdown_context(thread, doshutdown, processor));
-}
-
-kern_return_t
-ml_processor_register(
- cpu_id_t cpu_id,
- uint32_t lapic_id,
- processor_t *processor_out,
- ipi_handler_t *ipi_handler,
- boolean_t boot_cpu)
+static kern_return_t
+register_cpu(
+ uint32_t lapic_id,
+ processor_t *processor_out,
+ boolean_t boot_cpu )
{
int target_cpu;
cpu_data_t *this_cpu_datap;
lapic_cpu_map(lapic_id, target_cpu);
- this_cpu_datap->cpu_id = cpu_id;
+ /* The cpu_id is not known at registration phase. Just do
+ * lapic_id for now
+ */
this_cpu_datap->cpu_phys_number = lapic_id;
this_cpu_datap->cpu_console_buf = console_cpu_alloc(boot_cpu);
pmCPUStateInit();
+#if NCOPY_WINDOWS > 0
this_cpu_datap->cpu_pmap = pmap_cpu_alloc(boot_cpu);
if (this_cpu_datap->cpu_pmap == NULL)
goto failed;
+#endif
this_cpu_datap->cpu_processor = cpu_processor_alloc(boot_cpu);
if (this_cpu_datap->cpu_processor == NULL)
}
*processor_out = this_cpu_datap->cpu_processor;
- *ipi_handler = NULL;
-
- if (target_cpu == machine_info.max_cpus - 1) {
- /*
- * All processors are now registered but not started (except
- * for this "in-limbo" boot processor). We call to the machine
- * topology code to finalize and activate the topology.
- */
- cpu_topology_start();
- }
return KERN_SUCCESS;
failed:
cpu_processor_free(this_cpu_datap->cpu_processor);
+#if NCOPY_WINDOWS > 0
pmap_cpu_free(this_cpu_datap->cpu_pmap);
+#endif
chudxnu_cpu_free(this_cpu_datap->cpu_chud);
console_cpu_free(this_cpu_datap->cpu_console_buf);
return KERN_FAILURE;
}
+
+kern_return_t
+ml_processor_register(
+ cpu_id_t cpu_id,
+ uint32_t lapic_id,
+ processor_t *processor_out,
+ boolean_t boot_cpu,
+ boolean_t start )
+{
+ static boolean_t done_topo_sort = FALSE;
+ static uint32_t num_registered = 0;
+
+ /* Register all CPUs first, and track max */
+ if( start == FALSE )
+ {
+ num_registered++;
+
+ DBG( "registering CPU lapic id %d\n", lapic_id );
+
+ return register_cpu( lapic_id, processor_out, boot_cpu );
+ }
+
+ /* Sort by topology before we start anything */
+ if( !done_topo_sort )
+ {
+ DBG( "about to start CPUs. %d registered\n", num_registered );
+
+ cpu_topology_sort( num_registered );
+ done_topo_sort = TRUE;
+ }
+
+ /* Assign the cpu ID */
+ uint32_t cpunum = -1;
+ cpu_data_t *this_cpu_datap = NULL;
+
+ /* find cpu num and pointer */
+ cpunum = ml_get_cpuid( lapic_id );
+
+ if( cpunum == 0xFFFFFFFF ) /* never heard of it? */
+ panic( "trying to start invalid/unregistered CPU %d\n", lapic_id );
+
+ this_cpu_datap = cpu_datap(cpunum);
+
+ /* fix the CPU id */
+ this_cpu_datap->cpu_id = cpu_id;
+
+ /* output arg */
+ *processor_out = this_cpu_datap->cpu_processor;
+
+ /* OK, try and start this CPU */
+ return cpu_topology_start_cpu( cpunum );
+}
+
+
void
ml_cpu_get_info(ml_cpu_info_t *cpu_infop)
{
* Are we supporting MMX/SSE/SSE2/SSE3?
* As distinct from whether the cpu has these capabilities.
*/
- os_supports_sse = get_cr4() & CR4_XMM;
+ os_supports_sse = !!(get_cr4() & CR4_XMM);
if ((cpuid_features() & CPUID_FEATURE_SSE4_2) && os_supports_sse)
cpu_infop->vector_unit = 8;
else if ((cpuid_features() & CPUID_FEATURE_SSE4_1) && os_supports_sse)
* that the kernel supports or that the "cpus="
* boot-arg has set. Here we take int minimum.
*/
- machine_info.max_cpus = MIN(max_cpus, max_ncpus);
+ machine_info.max_cpus = (integer_t)MIN(max_cpus, max_ncpus);
}
if (max_cpus_initialized == MAX_CPUS_WAIT)
wakeup((event_t)&max_cpus_initialized);
ml_init_lock_timeout(void)
{
uint64_t abstime;
- uint32_t mtxspin;
+ uint32_t mtxspin;
+ uint64_t default_timeout_ns = NSEC_PER_SEC>>2;
+ uint32_t slto;
+
+ if (PE_parse_boot_argn("slto_us", &slto, sizeof (slto)))
+ default_timeout_ns = slto * NSEC_PER_USEC;
/* LockTimeOut is absolutetime, LockTimeOutTSC is in TSC ticks */
- nanoseconds_to_absolutetime(NSEC_PER_SEC>>2, &abstime);
+ nanoseconds_to_absolutetime(default_timeout_ns, &abstime);
LockTimeOut = (uint32_t) abstime;
LockTimeOutTSC = (uint32_t) tmrCvt(abstime, tscFCvtn2t);
nanoseconds_to_absolutetime(10*NSEC_PER_USEC, &abstime);
}
MutexSpin = (unsigned int)abstime;
+
+ nanoseconds_to_absolutetime(2 * NSEC_PER_SEC, &LastDebuggerEntryAllowance);
}
/*
current_cpu_datap()->cpu_ldt == KERNEL_LDT)
return;
+#if defined(__i386__)
/*
* If 64bit this requires a mode switch (and back).
*/
ml_64bit_lldt(selector);
else
lldt(selector);
- current_cpu_datap()->cpu_ldt = selector;
+#else
+ lldt(selector);
+#endif
+ current_cpu_datap()->cpu_ldt = selector;
}
void ml_fp_setvalid(boolean_t value)
return current_cpu_datap()->cpu_int_event_time;
}
+vm_offset_t ml_stack_remaining(void)
+{
+ uintptr_t local = (uintptr_t) &local;
+
+ if (ml_at_interrupt_context() != 0) {
+ return (local - (current_cpu_datap()->cpu_int_stack_top - INTSTACK_SIZE));
+ } else {
+ return (local - current_thread()->kernel_stack);
+ }
+}
#if MACH_KDB
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