/*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <ppc/mem.h>
#include <ppc/new_screen.h>
#include <ppc/proc_reg.h>
+#include <ppc/machine_cpu.h> /* for cpu_signal_handler() */
+#include <ppc/fpu_protos.h>
#include <kern/kern_types.h>
#include <kern/processor.h>
#include <kern/machine.h>
#include <vm/vm_page.h>
-unsigned int LockTimeOut = 12500000;
+unsigned int LockTimeOut = 1250000000;
unsigned int MutexSpin = 0;
-decl_mutex_data(static,mcpus_lock);
-unsigned int mcpus_lock_initialized = 0;
-unsigned int mcpus_state = 0;
+static int max_cpus_initialized = 0;
uint32_t warFlags = 0;
#define warDisMBpoff 0x80000000
extern unsigned int sulckPatch_eieio;
extern unsigned int rwlesPatch_eieio;
extern unsigned int rwldPatch_eieio;
-#if !MACH_LDEBUG
-extern unsigned int entfsectPatch_isync;
-extern unsigned int retfsectPatch_isync;
-extern unsigned int retfsectPatch_eieio;
-#endif
struct patch_up {
unsigned int *addr;
{&sulckPatch_eieio, 0x60000000},
{&rwlesPatch_eieio, 0x60000000},
{&rwldPatch_eieio, 0x60000000},
-#if !MACH_LDEBUG
- {&entfsectPatch_isync, 0x60000000},
- {&retfsectPatch_isync, 0x60000000},
- {&retfsectPatch_eieio, 0x60000000},
-#endif
{NULL, 0x00000000}
};
vm_offset_t phys_addr,
vm_size_t size)
{
- return(io_map(phys_addr,size));
+ return(io_map(phys_addr,size,VM_WIMG_IO));
}
+
+void ml_get_bouncepool_info(vm_offset_t *phys_addr, vm_size_t *size)
+{
+ *phys_addr = 0;
+ *size = 0;
+}
+
+
/*
* Routine: ml_static_malloc
* Function: static memory allocation
proc_info->interrupts_enabled = TRUE;
(void) ml_set_interrupts_enabled(current_state);
- initialize_screen(0, kPEAcquireScreen);
+ initialize_screen(NULL, kPEAcquireScreen);
+}
+
+/*
+ * 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 their use.
+ */
+
+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, pindex, nbytes = 0;
+
+ while (size > 0) {
+ if (!(cur_phys_src = kvtophys(virtsrc)))
+ break;
+ if (!(cur_phys_dst = kvtophys(virtdst)))
+ break;
+ if (!mapping_phys_lookup((cur_phys_src>>12), &pindex) ||
+ !mapping_phys_lookup((cur_phys_dst>>12), &pindex))
+ break;
+ count = PAGE_SIZE - (cur_phys_src & PAGE_MASK);
+ if (count > (PAGE_SIZE - (cur_phys_dst & PAGE_MASK)))
+ count = PAGE_SIZE - (cur_phys_dst & PAGE_MASK);
+ if (count > size)
+ count = size;
+
+ bcopy_phys(cur_phys_src, cur_phys_dst, count);
+
+ nbytes += count;
+ virtsrc += count;
+ virtdst += count;
+ size -= count;
+ }
+
+ return nbytes;
}
/*
*/
void ml_thread_policy(
thread_t thread,
- unsigned policy_id,
+__unused unsigned policy_id,
unsigned policy_info)
{
-
- if ((policy_id == MACHINE_GROUP) &&
- ((PerProcTable[master_cpu].ppe_vaddr->pf.Available) & pfSMPcap))
- thread_bind(thread, master_processor);
-
if (policy_info & MACHINE_NETWORK_WORKLOOP) {
spl_t s = splsched();
}
if (!boot_processor) {
- (void)hw_atomic_add((uint32_t *)&saveanchor.savetarget, FreeListMin); /* saveareas for this processor */
- processor_init((struct processor *)proc_info->processor, proc_info->cpu_number);
+ (void)hw_atomic_add(&saveanchor.savetarget, FreeListMin); /* saveareas for this processor */
+ processor_init((struct processor *)proc_info->processor,
+ proc_info->cpu_number, processor_pset(master_processor));
}
*processor_out = (struct processor *)proc_info->processor;
* Function:
*/
void
-ml_init_max_cpus(unsigned int mcpus)
+ml_init_max_cpus(unsigned int max_cpus)
{
+ boolean_t current_state;
- if (hw_compare_and_store(0,1,&mcpus_lock_initialized))
- mutex_init(&mcpus_lock,0);
- mutex_lock(&mcpus_lock);
- if ((mcpus_state & MAX_CPUS_SET)
- || (mcpus == 0)
- || (mcpus > MAX_CPUS))
- panic("ml_init_max_cpus(): Invalid call, max_cpus: %d\n", mcpus);
-
- machine_info.max_cpus = mcpus;
- machine_info.physical_cpu_max = mcpus;
- machine_info.logical_cpu_max = mcpus;
- mcpus_state |= MAX_CPUS_SET;
-
- if (mcpus_state & MAX_CPUS_WAIT) {
- mcpus_state |= ~MAX_CPUS_WAIT;
- thread_wakeup((event_t)&mcpus_state);
+ current_state = ml_set_interrupts_enabled(FALSE);
+ if (max_cpus_initialized != MAX_CPUS_SET) {
+ if (max_cpus > 0 && max_cpus <= MAX_CPUS) {
+ /*
+ * Note: 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 = MIN(max_cpus, max_ncpus);
+ machine_info.physical_cpu_max = max_cpus;
+ machine_info.logical_cpu_max = max_cpus;
+ }
+ if (max_cpus_initialized == MAX_CPUS_WAIT)
+ wakeup((event_t)&max_cpus_initialized);
+ max_cpus_initialized = MAX_CPUS_SET;
}
- mutex_unlock(&mcpus_lock);
-
+
if (machine_info.logical_cpu_max == 1) {
- struct patch_up *patch_up_ptr;
- boolean_t current_state;
-
- patch_up_ptr = &patch_up_table[0];
+ struct patch_up *patch_up_ptr = &patch_up_table[0];
- current_state = ml_set_interrupts_enabled(FALSE);
while (patch_up_ptr->addr != NULL) {
/*
* Patch for V=R kernel text section
sync_cache64((addr64_t)((unsigned int)(patch_up_ptr->addr)),4);
patch_up_ptr++;
}
- (void) ml_set_interrupts_enabled(current_state);
}
+
+ (void) ml_set_interrupts_enabled(current_state);
}
/*
unsigned int
ml_get_max_cpus(void)
{
- if (hw_compare_and_store(0,1,&mcpus_lock_initialized))
- mutex_init(&mcpus_lock,0);
- mutex_lock(&mcpus_lock);
- if (!(mcpus_state & MAX_CPUS_SET)) {
- mcpus_state |= MAX_CPUS_WAIT;
- thread_sleep_mutex((event_t)&mcpus_state,
- &mcpus_lock, THREAD_UNINT);
- } else
- mutex_unlock(&mcpus_lock);
+ boolean_t current_state;
+
+ current_state = ml_set_interrupts_enabled(FALSE);
+ if (max_cpus_initialized != MAX_CPUS_SET) {
+ max_cpus_initialized = MAX_CPUS_WAIT;
+ assert_wait((event_t)&max_cpus_initialized, THREAD_UNINT);
+ (void)thread_block(THREAD_CONTINUE_NULL);
+ }
+ (void) ml_set_interrupts_enabled(current_state);
return(machine_info.max_cpus);
}
void
ml_cpu_up(void)
{
- hw_atomic_add(&machine_info.physical_cpu, 1);
- hw_atomic_add(&machine_info.logical_cpu, 1);
+ (void)hw_atomic_add(&machine_info.physical_cpu, 1);
+ (void)hw_atomic_add(&machine_info.logical_cpu, 1);
}
/*
void
ml_cpu_down(void)
{
- hw_atomic_sub(&machine_info.physical_cpu, 1);
- hw_atomic_sub(&machine_info.logical_cpu, 1);
+ (void)hw_atomic_sub(&machine_info.physical_cpu, 1);
+ (void)hw_atomic_sub(&machine_info.logical_cpu, 1);
}
/*
}
-decl_simple_lock_data(, spsLock);
-
/*
* Routine: ml_set_processor_speed
* Function:
*/
for (i=200; i>0; i--) {
current_state = ml_set_interrupts_enabled(FALSE);
- if (cpu != cpu_number()) {
+ if (cpu != (unsigned)cpu_number()) {
if (PerProcTable[cpu].ppe_vaddr->cpu_flags & SignalReady)
/*
* Target cpu is off-line, skip
nanoseconds_to_absolutetime(NSEC_PER_SEC>>2, &abstime);
LockTimeOut = (unsigned int)abstime;
- if (PE_parse_boot_arg("mtxspin", &mtxspin)) {
+ 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);
return((thread_t)(getPerProc()->old_thread));
}
-/*
- * Routine: set_be_bit
- * Function:
- */
-int
-set_be_bit(
- void)
-{
- boolean_t current_state;
- current_state = ml_set_interrupts_enabled(FALSE);
- getPerProc()->cpu_flags |= traceBE;
- (void) ml_set_interrupts_enabled(current_state);
- return(1);
-}
+void ml_mem_backoff(void) {
-/*
- * Routine: clr_be_bit
- * Function:
- */
-int
-clr_be_bit(
- void)
-{
- boolean_t current_state;
+ if(warFlags & warDisMBpoff) return; /* If backoff disabled, exit */
- current_state = ml_set_interrupts_enabled(FALSE);
- getPerProc()->cpu_flags &= ~traceBE;
- (void) ml_set_interrupts_enabled(current_state);
- return(1);
+ __asm__ volatile("sync");
+ __asm__ volatile("isync");
+
+ return;
}
+
+
/*
- * Routine: be_tracing
- * Function:
+ * Stubs for CPU Stepper
*/
-int
-be_tracing(
- void)
+void
+machine_run_count(__unused uint32_t count)
{
- return(getPerProc()->cpu_flags & traceBE);
}
+boolean_t
+machine_cpu_is_inactive(__unused int num)
+{
+ return(FALSE);
+}
-void ml_mem_backoff(void) {
-
- if(warFlags & warDisMBpoff) return; /* If backoff disabled, exit */
+vm_offset_t ml_stack_remaining(void)
+{
+ uintptr_t local = (uintptr_t) &local;
- __asm__ volatile("sync");
- __asm__ volatile("isync");
-
- return;
+ if (ml_at_interrupt_context()) {
+ return (local - (getPerProc()->intstack_top_ss - INTSTACK_SIZE));
+ } else {
+ return (local - current_thread()->kernel_stack);
+ }
}
-
projects / apple / xnu.git / blobdiff