#include <mach/processor.h>
#include <kern/processor.h>
#include <kern/machine.h>
-#include <kern/cpu_data.h>
+
#include <kern/cpu_number.h>
#include <kern/thread.h>
#include <kern/thread_call.h>
+#include <kern/policy_internal.h>
+
+#include <prng/random.h>
#include <i386/machine_cpu.h>
#include <i386/lapic.h>
-#include <i386/lock.h>
+#include <i386/bit_routines.h>
#include <i386/mp_events.h>
#include <i386/pmCPU.h>
#include <i386/trap.h>
#if KPC
#include <kern/kpc.h>
#endif
-
+#include <architecture/i386/pio.h>
+#include <i386/cpu_data.h>
#if DEBUG
#define DBG(x...) kprintf("DBG: " x)
#else
static int max_cpus_initialized = 0;
-unsigned int LockTimeOut;
-unsigned int LockTimeOutTSC;
-unsigned int MutexSpin;
+uint64_t LockTimeOut;
+uint64_t TLBTimeOut;
+uint64_t LockTimeOutTSC;
+uint32_t LockTimeOutUsec;
+uint64_t MutexSpin;
uint64_t LastDebuggerEntryAllowance;
uint64_t delay_spin_threshold;
}
pmap_remove(kernel_pmap, vaddr_cur, vaddr_cur+PAGE_SIZE);
assert(pmap_valid_page(ppn));
-
if (IS_MANAGED_PAGE(ppn)) {
vm_page_create(ppn,(ppn+1));
- vm_page_wire_count--;
freed_pages++;
}
}
}
+ vm_page_lockspin_queues();
+ vm_page_wire_count -= freed_pages;
+ vm_page_wire_count_initial -= freed_pages;
+ vm_page_unlock_queues();
+
#if DEBUG
kprintf("ml_static_mfree: Released 0x%x pages at VA %p, size:0x%llx, last ppn: 0x%x\n", freed_pages, (void *)vaddr, (uint64_t)size, ppn);
#endif
__asm__ volatile("sti;nop");
if ((get_preemption_level() == 0) && (*ast_pending() & AST_URGENT))
- __asm__ volatile ("int $0xff");
+ __asm__ volatile ("int %0" :: "N" (T_PREEMPT));
}
else {
if (istate)
panic("ml_cause_interrupt not defined yet on Intel");
}
+/*
+ * TODO: transition users of this to kernel_thread_start_priority
+ * ml_thread_policy is an unsupported KPI
+ */
void ml_thread_policy(
thread_t thread,
__unused unsigned policy_id,
unsigned policy_info)
{
if (policy_info & MACHINE_NETWORK_WORKLOOP) {
- spl_t s = splsched();
+ thread_precedence_policy_data_t info;
+ __assert_only kern_return_t kret;
- thread_lock(thread);
+ info.importance = 1;
- set_priority(thread, thread->priority + 1);
-
- thread_unlock(thread);
- splx(s);
+ kret = thread_policy_set_internal(thread, THREAD_PRECEDENCE_POLICY,
+ (thread_policy_t)&info,
+ THREAD_PRECEDENCE_POLICY_COUNT);
+ assert(kret == KERN_SUCCESS);
}
}
cpu_interrupt(processor->cpu_id);
}
+void
+machine_signal_idle_deferred(
+ __unused processor_t processor)
+{
+ panic("Unimplemented");
+}
+
+void
+machine_signal_idle_cancel(
+ __unused processor_t processor)
+{
+ panic("Unimplemented");
+}
+
static kern_return_t
register_cpu(
uint32_t lapic_id,
goto failed;
#if KPC
- this_cpu_datap->cpu_kpc_buf[0] = kpc_counterbuf_alloc();
- if(this_cpu_datap->cpu_kpc_buf[0] == NULL )
- goto failed;
- this_cpu_datap->cpu_kpc_buf[1] = kpc_counterbuf_alloc();
- if(this_cpu_datap->cpu_kpc_buf[1] == NULL )
- goto failed;
-
- this_cpu_datap->cpu_kpc_shadow = kpc_counterbuf_alloc();
- if(this_cpu_datap->cpu_kpc_shadow == NULL )
- goto failed;
-
- this_cpu_datap->cpu_kpc_reload = kpc_counterbuf_alloc();
- if(this_cpu_datap->cpu_kpc_reload == NULL )
+ if (kpc_register_cpu(this_cpu_datap) != TRUE)
goto failed;
#endif
chudxnu_cpu_free(this_cpu_datap->cpu_chud);
console_cpu_free(this_cpu_datap->cpu_console_buf);
#if KPC
- kpc_counterbuf_free(this_cpu_datap->cpu_kpc_buf[0]);
- kpc_counterbuf_free(this_cpu_datap->cpu_kpc_buf[1]);
- kpc_counterbuf_free(this_cpu_datap->cpu_kpc_shadow);
- kpc_counterbuf_free(this_cpu_datap->cpu_kpc_reload);
+ kpc_unregister_cpu(this_cpu_datap);
#endif
return KERN_FAILURE;
/* fix the CPU id */
this_cpu_datap->cpu_id = cpu_id;
+ /* allocate and initialize other per-cpu structures */
+ if (!boot_cpu) {
+ mp_cpus_call_cpu_init(cpunum);
+ prng_cpu_init(cpunum);
+ }
+
/* output arg */
*processor_out = this_cpu_datap->cpu_processor;
(void) ml_set_interrupts_enabled(current_state);
return(machine_info.max_cpus);
}
-
/*
* Routine: ml_init_lock_timeout
* Function:
{
uint64_t abstime;
uint32_t mtxspin;
+#if DEVELOPMENT || DEBUG
uint64_t default_timeout_ns = NSEC_PER_SEC>>2;
+#else
+ uint64_t default_timeout_ns = NSEC_PER_SEC>>1;
+#endif
uint32_t slto;
uint32_t prt;
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 */
+ /*
+ * LockTimeOut is absolutetime, LockTimeOutTSC is in TSC ticks,
+ * and LockTimeOutUsec is in microseconds and it's 32-bits.
+ */
+ LockTimeOutUsec = (uint32_t) (default_timeout_ns / NSEC_PER_USEC);
nanoseconds_to_absolutetime(default_timeout_ns, &abstime);
- LockTimeOut = (uint32_t) abstime;
- LockTimeOutTSC = (uint32_t) tmrCvt(abstime, tscFCvtn2t);
+ LockTimeOut = abstime;
+ LockTimeOutTSC = tmrCvt(abstime, tscFCvtn2t);
+
+ /*
+ * TLBTimeOut dictates the TLB flush timeout period. It defaults to
+ * LockTimeOut but can be overriden separately. In particular, a
+ * zero value inhibits the timeout-panic and cuts a trace evnt instead
+ * - see pmap_flush_tlbs().
+ */
+ if (PE_parse_boot_argn("tlbto_us", &slto, sizeof (slto))) {
+ default_timeout_ns = slto * NSEC_PER_USEC;
+ nanoseconds_to_absolutetime(default_timeout_ns, &abstime);
+ TLBTimeOut = (uint32_t) abstime;
+ } else {
+ TLBTimeOut = LockTimeOut;
+ }
+
+#if DEVELOPMENT || DEBUG
+ reportphyreaddelayabs = LockTimeOut;
+#endif
+ if (PE_parse_boot_argn("phyreadmaxus", &slto, sizeof (slto))) {
+ default_timeout_ns = slto * NSEC_PER_USEC;
+ nanoseconds_to_absolutetime(default_timeout_ns, &abstime);
+ reportphyreaddelayabs = abstime;
+ }
if (PE_parse_boot_argn("mtxspin", &mtxspin, sizeof (mtxspin))) {
if (mtxspin > USEC_PER_SEC>>4)
nanoseconds_to_absolutetime(4ULL * NSEC_PER_SEC, &LastDebuggerEntryAllowance);
if (PE_parse_boot_argn("panic_restart_timeout", &prt, sizeof (prt)))
nanoseconds_to_absolutetime(prt * NSEC_PER_SEC, &panic_restart_timeout);
+
virtualized = ((cpuid_features() & CPUID_FEATURE_VMM) != 0);
+ if (virtualized) {
+ int vti;
+
+ if (!PE_parse_boot_argn("vti", &vti, sizeof (vti)))
+ vti = 6;
+ printf("Timeouts adjusted for virtualization (<<%d)\n", vti);
+ kprintf("Timeouts adjusted for virtualization (<<%d):\n", vti);
+#define VIRTUAL_TIMEOUT_INFLATE64(_timeout) \
+MACRO_BEGIN \
+ kprintf("%24s: 0x%016llx ", #_timeout, _timeout); \
+ _timeout <<= vti; \
+ kprintf("-> 0x%016llx\n", _timeout); \
+MACRO_END
+#define VIRTUAL_TIMEOUT_INFLATE32(_timeout) \
+MACRO_BEGIN \
+ kprintf("%24s: 0x%08x ", #_timeout, _timeout); \
+ if ((_timeout <<vti) >> vti == _timeout) \
+ _timeout <<= vti; \
+ else \
+ _timeout = ~0; /* cap rather than overflow */ \
+ kprintf("-> 0x%08x\n", _timeout); \
+MACRO_END
+ VIRTUAL_TIMEOUT_INFLATE32(LockTimeOutUsec);
+ VIRTUAL_TIMEOUT_INFLATE64(LockTimeOut);
+ VIRTUAL_TIMEOUT_INFLATE64(LockTimeOutTSC);
+ VIRTUAL_TIMEOUT_INFLATE64(TLBTimeOut);
+ VIRTUAL_TIMEOUT_INFLATE64(MutexSpin);
+ VIRTUAL_TIMEOUT_INFLATE64(reportphyreaddelayabs);
+ }
+
interrupt_latency_tracker_setup();
simple_lock_init(&ml_timer_evaluation_slock, 0);
}
}
boolean_t machine_timeout_suspended(void) {
- return (virtualized || pmap_tlb_flush_timeout || spinlock_timed_out || panic_active() || mp_recent_debugger_activity());
+ return (pmap_tlb_flush_timeout || spinlock_timed_out || panic_active() || mp_recent_debugger_activity() || ml_recent_wake());
}
/* Eagerly evaluate all pending timer and thread callouts
ml_timer_forced_evaluation(void) {
return ml_timer_evaluation_in_progress;
}
+
+/* 32-bit right-rotate n bits */
+static inline uint32_t ror32(uint32_t val, const unsigned int n)
+{
+ __asm__ volatile("rorl %%cl,%0" : "=r" (val) : "0" (val), "c" (n));
+ return val;
+}
+
+void
+ml_entropy_collect(void)
+{
+ uint32_t tsc_lo, tsc_hi;
+ uint32_t *ep;
+
+ assert(cpu_number() == master_cpu);
+
+ /* update buffer pointer cyclically */
+ if (EntropyData.index_ptr - EntropyData.buffer == ENTROPY_BUFFER_SIZE)
+ ep = EntropyData.index_ptr = EntropyData.buffer;
+ else
+ ep = EntropyData.index_ptr++;
+
+ rdtsc_nofence(tsc_lo, tsc_hi);
+ *ep = ror32(*ep, 9) ^ tsc_lo;
+}
+
+uint64_t
+ml_energy_stat(__unused thread_t t) {
+ return 0;
+}
+
+void
+ml_gpu_stat_update(uint64_t gpu_ns_delta) {
+ current_thread()->machine.thread_gpu_ns += gpu_ns_delta;
+}
+
+uint64_t
+ml_gpu_stat(thread_t t) {
+ return t->machine.thread_gpu_ns;
+}
+
+int plctrace_enabled = 0;
+
+void _disable_preemption(void) {
+ disable_preemption_internal();
+}
+
+void _enable_preemption(void) {
+ enable_preemption_internal();
+}
+
+void plctrace_disable(void) {
+ plctrace_enabled = 0;
+}
projects / apple / xnu.git / blobdiff