/*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * 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
+ * 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.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
*/
#include <i386/machine_routines.h>
#include <i386/io_map_entries.h>
#include <i386/cpu_threads.h>
#include <i386/pmap.h>
#include <i386/misc_protos.h>
-#include <i386/pmCPU.h>
-#include <i386/proc_reg.h>
#include <mach/vm_param.h>
-#if MACH_KDB
-#include <i386/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
#define MIN(a,b) ((a)<(b)? (a) : (b))
-#if DEBUG
-#define DBG(x...) kprintf("DBG: " x)
-#else
-#define DBG(x...)
-#endif
-
extern void initialize_screen(Boot_Video *, unsigned int);
-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 = 12500000;
-unsigned int MutexSpin = 0;
-
#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,VM_WIMG_IO));
+ return(io_map(phys_addr,size));
}
/* boot memory allocation */
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_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)
vm_offset_t vaddr_cur;
ppnum_t ppn;
-// if (vaddr < VM_MIN_KERNEL_ADDRESS) return;
+ if (vaddr < VM_MIN_KERNEL_ADDRESS) return;
assert((vaddr & (PAGE_SIZE-1)) == 0); /* must be page aligned */
}
}
-
/* virtual to physical on wired pages */
vm_offset_t ml_vtophys(
vm_offset_t vaddr)
__asm__ volatile("pushf; popl %0" : "=r" (flags));
- if (enable) {
- ast_t *myast;
-
- myast = ast_pending();
-
- if ( (get_preemption_level() == 0) && (*myast & AST_URGENT) ) {
+ if (enable)
__asm__ volatile("sti");
- __asm__ volatile ("int $0xff");
- } else {
- __asm__ volatile ("sti");
- }
- }
- else {
+ else
__asm__ volatile("cli");
- }
return (flags & EFL_IF) != 0;
}
initialize_screen(0, kPEAcquireScreen);
}
+static void
+cpu_idle(void)
+{
+ __asm__ volatile("sti; hlt": : :"memory");
+}
+void (*cpu_idle_handler)(void) = cpu_idle;
void
machine_idle(void)
* unless kernel param idlehalt is false and no other thread
* in the same core is active - if so, don't halt so that this
* core doesn't go into a low-power mode.
- * For 4/4, we set a null "active cr3" while idle.
*/
others_active = !atomic_decl_and_test(
(long *) &my_core->active_threads, 1);
if (idlehalt || others_active) {
DBGLOG(cpu_handle, cpu_number(), MP_IDLE);
- MARK_CPU_IDLE(cpu_number());
- machine_idle_cstate();
- MARK_CPU_ACTIVE(cpu_number());
+ cpu_idle_handler();
DBGLOG(cpu_handle, cpu_number(), MP_UNIDLE);
} else {
__asm__ volatile("sti");
cpu_interrupt(PROCESSOR_DATA(processor, slot_num));
}
-thread_t
-machine_processor_shutdown(
- thread_t thread,
- void (*doshutdown)(processor_t),
- processor_t processor)
-{
- fpu_save_context(thread);
- return(Shutdown_context(thread, doshutdown, processor));
-}
-
kern_return_t
ml_processor_register(
cpu_id_t cpu_id,
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) {
- this_cpu_datap->cpu_core = cpu_thread_alloc(target_cpu);
-
this_cpu_datap->cpu_pmap = pmap_cpu_alloc(boot_cpu);
if (this_cpu_datap->cpu_pmap == NULL)
goto failed;
failed:
cpu_processor_free(this_cpu_datap->cpu_processor);
pmap_cpu_free(this_cpu_datap->cpu_pmap);
- chudxnu_cpu_free(this_cpu_datap->cpu_chud);
console_cpu_free(this_cpu_datap->cpu_console_buf);
return KERN_FAILURE;
}
return;
/*
- * Are we supporting MMX/SSE/SSE2/SSE3?
+ * Are we supporting XMM/SSE/SSE2?
* As distinct from whether the cpu has these capabilities.
*/
os_supports_sse = get_cr4() & CR4_XMM;
- if ((cpuid_features() & CPUID_FEATURE_MNI) && 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)
+ 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_infop->vector_unit = 3;
}
if (cpuid_infop->cache_size[L3U] > 0) {
- cpu_infop->l3_settings = 1;
- cpu_infop->l3_cache_size = cpuid_infop->cache_size[L3U];
+ cpu_infop->l2_settings = 1;
+ cpu_infop->l2_cache_size = cpuid_infop->cache_size[L3U];
} else {
cpu_infop->l3_settings = 0;
cpu_infop->l3_cache_size = 0xFFFFFFFF;
return(machine_info.max_cpus);
}
-/*
- * Routine: ml_init_lock_timeout
- * Function:
- */
-void
-ml_init_lock_timeout(void)
-{
- uint64_t abstime;
- uint32_t mtxspin;
-
- /*
- * XXX As currently implemented for x86, LockTimeOut should be a
- * cycle (tsc) count not an absolute time (nanoseconds) -
- * but it's of the right order.
- */
- nanoseconds_to_absolutetime(NSEC_PER_SEC>>2, &abstime);
- LockTimeOut = (unsigned int)abstime;
-
- if (PE_parse_boot_arg("mtxspin", &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;
-}
-
/*
* This is called from the machine-independent routine cpu_up()
* to perform machine-dependent info updates. Defer to cpu_thread_init().
{
return(current_thread_fast());
}
-
-/*
- * Set the worst-case time for the C4 to C2 transition.
- * The maxdelay parameter is in nanoseconds.
- */
-
-void
-ml_set_maxsnoop(uint32_t maxdelay)
-{
- C4C2SnoopDelay = maxdelay; /* Set the transition time */
- machine_nap_policy(); /* Adjust the current nap state */
-}
-
-
-/*
- * Get the worst-case time for the C4 to C2 transition. Returns nanoseconds.
- */
-
-unsigned
-ml_get_maxsnoop(void)
-{
- return C4C2SnoopDelay; /* Set the transition time */
-}
-
-
-uint32_t
-ml_get_maxbusdelay(void)
-{
- return maxBusDelay;
-}
-
-/*
- * Set the maximum delay time allowed for snoop on the bus.
- *
- * Note that this value will be compared to the amount of time that it takes
- * to transition from a non-snooping power state (C4) to a snooping state (C2).
- * If maxBusDelay is less than C4C2SnoopDelay,
- * we will not enter the lowest power state.
- */
-
-void
-ml_set_maxbusdelay(uint32_t mdelay)
-{
- maxBusDelay = mdelay; /* Set the delay */
- machine_nap_policy(); /* Adjust the current nap state */
-}
-
-
-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 64bit this requires a mode switch (and back).
- */
- if (cpu_mode_is64bit())
- ml_64bit_lldt(selector);
- else
- lldt(selector);
- current_cpu_datap()->cpu_ldt = selector;
-}
-
-void ml_fp_setvalid(boolean_t value)
-{
- fp_setvalid(value);
-}
-
-#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