/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
+
#include <i386/machine_routines.h>
#include <i386/io_map_entries.h>
#include <i386/cpuid.h>
#include <i386/fpu.h>
+#include <mach/processor.h>
#include <kern/processor.h>
+#include <kern/machine.h>
#include <kern/cpu_data.h>
-#include <kern/thread_act.h>
+#include <kern/cpu_number.h>
+#include <kern/thread.h>
#include <i386/machine_cpu.h>
-#include <i386/mp.h>
+#include <i386/lapic.h>
#include <i386/mp_events.h>
+#include <i386/pmCPU.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 <machine/db_machdep.h>
+#include <ddb/db_aout.h>
+#include <ddb/db_access.h>
+#include <ddb/db_sym.h>
+#include <ddb/db_variables.h>
+#include <ddb/db_command.h>
+#include <ddb/db_output.h>
+#include <ddb/db_expr.h>
+#endif
+
+#if DEBUG
+#define DBG(x...) kprintf("DBG: " x)
+#else
+#define DBG(x...)
+#endif
+
+
+extern void wakeup(void *);
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 phys_addr,
vm_size_t size)
{
- return(io_map(phys_addr,size));
+ return(io_map(phys_addr,size,VM_WIMG_IO));
}
/* boot memory allocation */
vm_offset_t ml_static_malloc(
- vm_size_t size)
+ __unused vm_size_t size)
{
return((vm_offset_t)NULL);
}
+
+void ml_get_bouncepool_info(vm_offset_t *phys_addr, vm_size_t *size)
+{
+ *phys_addr = bounce_pool_base;
+ *size = bounce_pool_size;
+}
+
+
vm_offset_t
ml_static_ptovirt(
vm_offset_t paddr)
{
- return phystokv(paddr);
+#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
}
+
+/*
+ * Routine: ml_static_mfree
+ * Function:
+ */
void
ml_static_mfree(
- vm_offset_t vaddr,
- vm_size_t size)
+ vm_offset_t vaddr,
+ vm_size_t size)
{
- return;
+ addr64_t vaddr_cur;
+ ppnum_t ppn;
+
+ assert(vaddr >= VM_MIN_KERNEL_ADDRESS);
+
+ assert((vaddr & (PAGE_SIZE-1)) == 0); /* must be page aligned */
+
+
+ for (vaddr_cur = vaddr;
+ vaddr_cur < round_page_64(vaddr+size);
+ vaddr_cur += PAGE_SIZE) {
+ 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_max =
+ kernel_pmap->stats.resident_count;
+ }
+ pmap_remove(kernel_pmap, vaddr_cur, vaddr_cur+PAGE_SIZE);
+ vm_page_create(ppn,(ppn+1));
+ vm_page_wire_count--;
+ }
+ }
}
+
/* virtual to physical on wired pages */
vm_offset_t ml_vtophys(
vm_offset_t vaddr)
{
- return kvtophys(vaddr);
+ return (vm_offset_t)kvtophys(vaddr);
+}
+
+/*
+ * Routine: ml_nofault_copy
+ * Function: Perform a physical mode copy if the source and
+ * destination have valid translations in the kernel pmap.
+ * If translations are present, they are assumed to
+ * be wired; i.e. no attempt is made to guarantee that the
+ * translations obtained remained valid for
+ * the duration of the copy process.
+ */
+
+vm_size_t ml_nofault_copy(
+ vm_offset_t virtsrc, vm_offset_t virtdst, vm_size_t size)
+{
+ addr64_t cur_phys_dst, cur_phys_src;
+ uint32_t count, nbytes = 0;
+
+ while (size > 0) {
+ if (!(cur_phys_src = kvtophys(virtsrc)))
+ break;
+ if (!(cur_phys_dst = kvtophys(virtdst)))
+ break;
+ if (!pmap_valid_page(i386_btop(cur_phys_dst)) || !pmap_valid_page(i386_btop(cur_phys_src)))
+ break;
+ count = (uint32_t)(PAGE_SIZE - (cur_phys_src & PAGE_MASK));
+ if (count > (PAGE_SIZE - (cur_phys_dst & PAGE_MASK)))
+ count = (uint32_t)(PAGE_SIZE - (cur_phys_dst & PAGE_MASK));
+ if (count > size)
+ count = (uint32_t)size;
+
+ bcopy_phys(cur_phys_src, cur_phys_dst, count);
+
+ nbytes += count;
+ virtsrc += count;
+ virtdst += count;
+ size -= count;
+ }
+
+ return nbytes;
}
/* Interrupt handling */
(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;
- if (enable)
+ myast = ast_pending();
+
+ if ( (get_preemption_level() == 0) && (*myast & AST_URGENT) ) {
__asm__ volatile("sti");
- else
+ __asm__ volatile ("int $0xff");
+ } else {
+ __asm__ volatile ("sti");
+ }
+ }
+ else {
__asm__ volatile("cli");
+ }
return (flags & EFL_IF) != 0;
}
void ml_thread_policy(
thread_t thread,
- unsigned policy_id,
+__unused unsigned policy_id,
unsigned policy_info)
{
- if (policy_id == MACHINE_GROUP)
- thread_bind(thread, master_processor);
-
if (policy_info & MACHINE_NETWORK_WORKLOOP) {
spl_t s = splsched();
(void) ml_set_interrupts_enabled(current_state);
- initialize_screen(0, kPEAcquireScreen);
+ initialize_screen(NULL, kPEAcquireScreen);
}
-void
-machine_idle(void)
-{
- DBGLOG(cpu_handle, cpu_number(), MP_IDLE);
- __asm__ volatile("sti; hlt": : :"memory");
- __asm__ volatile("cli");
- DBGLOG(cpu_handle, cpu_number(), MP_UNIDLE);
-}
void
machine_signal_idle(
processor_t processor)
{
- cpu_interrupt(processor->slot_num);
+ cpu_interrupt(processor->cpu_id);
}
-kern_return_t
-ml_processor_register(
- cpu_id_t cpu_id,
- uint32_t lapic_id,
- processor_t *processor,
- 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 )
{
- kern_return_t ret;
int target_cpu;
+ cpu_data_t *this_cpu_datap;
- if (cpu_register(&target_cpu) != KERN_SUCCESS)
+ this_cpu_datap = cpu_data_alloc(boot_cpu);
+ if (this_cpu_datap == NULL) {
return KERN_FAILURE;
-
+ }
+ target_cpu = this_cpu_datap->cpu_number;
assert((boot_cpu && (target_cpu == 0)) ||
(!boot_cpu && (target_cpu != 0)));
lapic_cpu_map(lapic_id, target_cpu);
- cpu_data[target_cpu].cpu_id = cpu_id;
- cpu_data[target_cpu].cpu_phys_number = lapic_id;
- *processor = cpu_to_processor(target_cpu);
- *ipi_handler = NULL;
+
+ /* 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);
+ if (this_cpu_datap->cpu_console_buf == NULL)
+ goto failed;
+
+ this_cpu_datap->cpu_chud = chudxnu_cpu_alloc(boot_cpu);
+ if (this_cpu_datap->cpu_chud == NULL)
+ goto failed;
+
+ if (!boot_cpu) {
+ cpu_thread_alloc(this_cpu_datap->cpu_number);
+ if (this_cpu_datap->lcpu.core == NULL)
+ goto failed;
+
+ 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)
+ goto failed;
+ /*
+ * processor_init() deferred to topology start
+ * because "slot numbers" a.k.a. logical processor numbers
+ * are not yet finalized.
+ */
+ }
+
+ *processor_out = this_cpu_datap->cpu_processor;
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_info)
+ml_cpu_get_info(ml_cpu_info_t *cpu_infop)
{
boolean_t os_supports_sse;
i386_cpu_info_t *cpuid_infop;
- if (cpu_info == NULL)
+ if (cpu_infop == NULL)
return;
/*
- * Are we supporting XMM/SSE/SSE2?
+ * Are we supporting MMX/SSE/SSE2/SSE3?
* As distinct from whether the cpu has these capabilities.
*/
- os_supports_sse = get_cr4() & CR4_XMM;
- if ((cpuid_features() & CPUID_FEATURE_SSE2) && os_supports_sse)
- cpu_info->vector_unit = 4;
+ 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)
+ cpu_infop->vector_unit = 7;
+ else if ((cpuid_features() & CPUID_FEATURE_SSSE3) && os_supports_sse)
+ cpu_infop->vector_unit = 6;
+ else if ((cpuid_features() & CPUID_FEATURE_SSE3) && os_supports_sse)
+ cpu_infop->vector_unit = 5;
+ else if ((cpuid_features() & CPUID_FEATURE_SSE2) && os_supports_sse)
+ cpu_infop->vector_unit = 4;
else if ((cpuid_features() & CPUID_FEATURE_SSE) && os_supports_sse)
- cpu_info->vector_unit = 3;
+ cpu_infop->vector_unit = 3;
else if (cpuid_features() & CPUID_FEATURE_MMX)
- cpu_info->vector_unit = 2;
+ cpu_infop->vector_unit = 2;
else
- cpu_info->vector_unit = 0;
+ cpu_infop->vector_unit = 0;
cpuid_infop = cpuid_info();
- cpu_info->cache_line_size = cpuid_infop->cache_linesize;
+ cpu_infop->cache_line_size = cpuid_infop->cache_linesize;
- cpu_info->l1_icache_size = cpuid_infop->cache_size[L1I];
- cpu_info->l1_dcache_size = cpuid_infop->cache_size[L1D];
+ cpu_infop->l1_icache_size = cpuid_infop->cache_size[L1I];
+ cpu_infop->l1_dcache_size = cpuid_infop->cache_size[L1D];
- cpu_info->l2_settings = 1;
- cpu_info->l2_cache_size = cpuid_infop->cache_size[L2U];
+ if (cpuid_infop->cache_size[L2U] > 0) {
+ cpu_infop->l2_settings = 1;
+ cpu_infop->l2_cache_size = cpuid_infop->cache_size[L2U];
+ } else {
+ cpu_infop->l2_settings = 0;
+ cpu_infop->l2_cache_size = 0xFFFFFFFF;
+ }
- /* XXX No L3 */
- cpu_info->l3_settings = 0;
- cpu_info->l3_cache_size = 0xFFFFFFFF;
+ if (cpuid_infop->cache_size[L3U] > 0) {
+ cpu_infop->l3_settings = 1;
+ cpu_infop->l3_cache_size = cpuid_infop->cache_size[L3U];
+ } else {
+ cpu_infop->l3_settings = 0;
+ cpu_infop->l3_cache_size = 0xFFFFFFFF;
+ }
}
void
current_state = ml_set_interrupts_enabled(FALSE);
if (max_cpus_initialized != MAX_CPUS_SET) {
- if (max_cpus > 0 && max_cpus < NCPUS)
- machine_info.max_cpus = max_cpus;
+ if (max_cpus > 0 && max_cpus <= MAX_CPUS) {
+ /*
+ * Note: max_cpus is the number of enabled processors
+ * that ACPI found; max_ncpus is the maximum number
+ * that the kernel supports or that the "cpus="
+ * boot-arg has set. Here we take int minimum.
+ */
+ machine_info.max_cpus = (integer_t)MIN(max_cpus, max_ncpus);
+ }
if (max_cpus_initialized == MAX_CPUS_WAIT)
wakeup((event_t)&max_cpus_initialized);
max_cpus_initialized = MAX_CPUS_SET;
return(machine_info.max_cpus);
}
-/* Stubs for pc tracing mechanism */
-
-int *pc_trace_buf;
-int pc_trace_cnt = 0;
-
-int
-set_be_bit()
+/*
+ * Routine: ml_init_lock_timeout
+ * Function:
+ */
+void
+ml_init_lock_timeout(void)
{
- return(0);
+ uint64_t abstime;
+ 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(default_timeout_ns, &abstime);
+ LockTimeOut = (uint32_t) abstime;
+ LockTimeOutTSC = (uint32_t) tmrCvt(abstime, tscFCvtn2t);
+
+ if (PE_parse_boot_argn("mtxspin", &mtxspin, sizeof (mtxspin))) {
+ if (mtxspin > USEC_PER_SEC>>4)
+ mtxspin = USEC_PER_SEC>>4;
+ nanoseconds_to_absolutetime(mtxspin*NSEC_PER_USEC, &abstime);
+ } else {
+ nanoseconds_to_absolutetime(10*NSEC_PER_USEC, &abstime);
+ }
+ MutexSpin = (unsigned int)abstime;
+
+ nanoseconds_to_absolutetime(2 * NSEC_PER_SEC, &LastDebuggerEntryAllowance);
}
-int
-clr_be_bit()
+/*
+ * This is called from the machine-independent routine cpu_up()
+ * to perform machine-dependent info updates. Defer to cpu_thread_init().
+ */
+void
+ml_cpu_up(void)
{
- return(0);
+ return;
}
-int
-be_tracing()
+/*
+ * This is called from the machine-independent routine cpu_down()
+ * to perform machine-dependent info updates.
+ */
+void
+ml_cpu_down(void)
{
- return(0);
+ return;
}
-#undef current_act
-thread_act_t
+/*
+ * The following are required for parts of the kernel
+ * that cannot resolve these functions as inlines:
+ */
+extern thread_t current_act(void);
+thread_t
current_act(void)
-{
- return(current_act_fast());
-}
+{
+ return(current_thread_fast());
+}
#undef current_thread
+extern thread_t current_thread(void);
thread_t
current_thread(void)
{
- return(current_act_fast());
+ return(current_thread_fast());
+}
+
+
+boolean_t ml_is64bit(void) {
+
+ return (cpu_mode_is64bit());
+}
+
+
+boolean_t ml_thread_is64bit(thread_t thread) {
+
+ return (thread_is_64bit(thread));
+}
+
+
+boolean_t ml_state_is64bit(void *saved_state) {
+
+ return is_saved_state64(saved_state);
+}
+
+void ml_cpu_set_ldt(int selector)
+{
+ /*
+ * Avoid loading the LDT
+ * if we're setting the KERNEL LDT and it's already set.
+ */
+ if (selector == KERNEL_LDT &&
+ current_cpu_datap()->cpu_ldt == KERNEL_LDT)
+ return;
+
+#if defined(__i386__)
+ /*
+ * If 64bit this requires a mode switch (and back).
+ */
+ if (cpu_mode_is64bit())
+ ml_64bit_lldt(selector);
+ else
+ lldt(selector);
+#else
+ lldt(selector);
+#endif
+ current_cpu_datap()->cpu_ldt = selector;
+}
+
+void ml_fp_setvalid(boolean_t value)
+{
+ fp_setvalid(value);
+}
+
+uint64_t ml_cpu_int_event_time(void)
+{
+ 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
+
+/*
+ * Display the global msrs
+ * *
+ * ms
+ */
+void
+db_msr(__unused db_expr_t addr,
+ __unused int have_addr,
+ __unused db_expr_t count,
+ __unused char *modif)
+{
+
+ uint32_t i, msrlow, msrhigh;
+
+ /* Try all of the first 4096 msrs */
+ for (i = 0; i < 4096; i++) {
+ if (!rdmsr_carefully(i, &msrlow, &msrhigh)) {
+ db_printf("%08X - %08X.%08X\n", i, msrhigh, msrlow);
+ }
+ }
+
+ /* Try all of the 4096 msrs at 0x0C000000 */
+ for (i = 0; i < 4096; i++) {
+ if (!rdmsr_carefully(0x0C000000 | i, &msrlow, &msrhigh)) {
+ db_printf("%08X - %08X.%08X\n",
+ 0x0C000000 | i, msrhigh, msrlow);
+ }
+ }
+
+ /* Try all of the 4096 msrs at 0xC0000000 */
+ for (i = 0; i < 4096; i++) {
+ if (!rdmsr_carefully(0xC0000000 | i, &msrlow, &msrhigh)) {
+ db_printf("%08X - %08X.%08X\n",
+ 0xC0000000 | i, msrhigh, msrlow);
+ }
+ }
+}
+
+#endif
projects / apple / xnu.git / blobdiff