src/cpu/intr_control.cc

   1 /*
   2  * Copyright (c) 2002-2005 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include "cpu/intr_control.hh"
  30
  31 #include <string>
  32 #include <vector>
  33
  34 #include "base/trace.hh"
  35 #include "cpu/base.hh"
  36 #include "cpu/thread_context.hh"
  37 #include "debug/IntrControl.hh"
  38 #include "sim/sim_object.hh"
  39
  40 using namespace std;
  41
  42 IntrControl::IntrControl(const Params *p)
  43     : SimObject(p), sys(p->sys)
  44 {}
  45
  46 void
  47 IntrControl::post(int cpu_id, int int_num, int index)
  48 {
  49     DPRINTF(IntrControl, "post  %d:%d (cpu %d)\n", int_num, index, cpu_id);
  50     ThreadContext *tc = sys->getThreadContext(cpu_id);
  51     tc->getCpuPtr()->postInterrupt(tc->threadId(), int_num, index);
  52 }
  53
  54 void
  55 IntrControl::clear(int cpu_id, int int_num, int index)
  56 {
  57     DPRINTF(IntrControl, "clear %d:%d (cpu %d)\n", int_num, index, cpu_id);
  58     ThreadContext *tc = sys->getThreadContext(cpu_id);
  59     tc->getCpuPtr()->clearInterrupt(tc->threadId(), int_num, index);
  60 }
  61
  62 void
  63 IntrControl::clearAll(int cpu_id)
  64 {
  65     DPRINTF(IntrControl, "Clear all pending interrupts for CPU %d\n", cpu_id);
  66     ThreadContext *tc = sys->getThreadContext(cpu_id);
  67     tc->getCpuPtr()->clearInterrupts(tc->threadId());
  68 }
  69
  70 bool
  71 IntrControl::havePosted(int cpu_id) const
  72 {
  73     DPRINTF(IntrControl, "Check pending interrupts for CPU %d\n", cpu_id);
  74     ThreadContext *tc = sys->getThreadContext(cpu_id);
  75     return tc->getCpuPtr()->checkInterrupts(tc);
  76 }
  77
  78 IntrControl *
  79 IntrControlParams::create()
  80 {
  81     return new IntrControl(this);
  82 }