kernel/fiasco/src/kern/app_cpu_thread.cpp

   1 INTERFACE [mp]:
   2
   3 #include "kernel_thread.h"
   4
   5 class App_cpu_thread : public Kernel_thread
   6 {
   7 private:
   8   void bootstrap() asm ("call_ap_bootstrap") FIASCO_FASTCALL;
   9 };
  10
  11 IMPLEMENTATION [mp]:
  12
  13 #include <cstdlib>
  14 #include <cstdio>
  15
  16 #include "config.h"
  17 #include "delayloop.h"
  18 #include "fpu.h"
  19 #include "globals.h"
  20 #include "helping_lock.h"
  21 #include "kernel_task.h"
  22 #include "processor.h"
  23 #include "scheduler.h"
  24 #include "task.h"
  25 #include "thread.h"
  26 #include "thread_state.h"
  27 #include "timer.h"
  28 #include "timer_tick.h"
  29 #include "spin_lock.h"
  30
  31 PUBLIC static
  32 Kernel_thread *
  33 App_cpu_thread::may_be_create(unsigned cpu, bool cpu_never_seen_before)
  34 {
  35   if (!cpu_never_seen_before)
  36     return static_cast<Kernel_thread *>(kernel_context(cpu));
  37
  38   Kernel_thread *t = new (Ram_quota::root) App_cpu_thread;
  39   assert (t);
  40
  41   set_cpu_of(t, cpu);
  42   check(t->bind(Kernel_task::kernel_task(), User<Utcb>::Ptr(0)));
  43   return t;
  44 }
  45
  46
  47 // the kernel bootstrap routine
  48 IMPLEMENT
  49 void
  50 App_cpu_thread::bootstrap()
  51 {
  52   extern Spin_lock<Mword> _tramp_mp_spinlock;
  53
  54   state_change_dirty(0, Thread_ready);          // Set myself ready
  55
  56
  57   Fpu::init(cpu(true));
  58
  59   // initialize the current_mem_space function to point to the kernel space
  60   Kernel_task::kernel_task()->make_current();
  61
  62   Mem_unit::tlb_flush();
  63
  64   Cpu::cpus.current().set_online(1);
  65
  66   _tramp_mp_spinlock.set(1);
  67
  68   kernel_context(cpu(true), this);
  69   Sched_context::rq.current().set_idle(this->sched());
  70   Rcu::leave_idle(cpu(true));
  71
  72   Timer_tick::setup(cpu(true));
  73   Timer_tick::enable(cpu(true));
  74   enable_tlb(cpu(true));
  75   // Setup initial timeslice
  76   Sched_context::rq.current().set_current_sched(sched());
  77
  78   Per_cpu_data::run_late_ctors(cpu(true));
  79
  80   Scheduler::scheduler.trigger_hotplug_event();
  81
  82   cpu_lock.clear();
  83
  84   printf("CPU[%u]: goes to idle loop\n", cpu(true));
  85
  86   for (;;)
  87     idle_op();
  88 }