interrupts.hh revision 5648
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544120Sgblack@eecs.umich.edu *
554120Sgblack@eecs.umich.edu * Authors: Gabe Black
564120Sgblack@eecs.umich.edu */
574120Sgblack@eecs.umich.edu
584120Sgblack@eecs.umich.edu#ifndef __ARCH_X86_INTERRUPTS_HH__
594120Sgblack@eecs.umich.edu#define __ARCH_X86_INTERRUPTS_HH__
604120Sgblack@eecs.umich.edu
615647Sgblack@eecs.umich.edu#include "arch/x86/apicregs.hh"
625086Sgblack@eecs.umich.edu#include "arch/x86/faults.hh"
635086Sgblack@eecs.umich.edu#include "cpu/thread_context.hh"
645648Sgblack@eecs.umich.edu#include "dev/io_device.hh"
655647Sgblack@eecs.umich.edu#include "params/X86LocalApic.hh"
665647Sgblack@eecs.umich.edu#include "sim/eventq.hh"
675647Sgblack@eecs.umich.edu#include "sim/sim_object.hh"
685647Sgblack@eecs.umich.edu
695647Sgblack@eecs.umich.educlass ThreadContext;
704120Sgblack@eecs.umich.edu
714120Sgblack@eecs.umich.edunamespace X86ISA
724120Sgblack@eecs.umich.edu{
735086Sgblack@eecs.umich.edu
745648Sgblack@eecs.umich.educlass Interrupts : public BasicPioDevice
755086Sgblack@eecs.umich.edu{
765647Sgblack@eecs.umich.edu  protected:
775647Sgblack@eecs.umich.edu    uint32_t regs[NUM_APIC_REGS];
785648Sgblack@eecs.umich.edu    Tick latency;
795648Sgblack@eecs.umich.edu    Tick clock;
805647Sgblack@eecs.umich.edu
815647Sgblack@eecs.umich.edu    class ApicTimerEvent : public Event
825647Sgblack@eecs.umich.edu    {
835647Sgblack@eecs.umich.edu      public:
845647Sgblack@eecs.umich.edu        ApicTimerEvent() : Event()
855647Sgblack@eecs.umich.edu        {}
865647Sgblack@eecs.umich.edu
875647Sgblack@eecs.umich.edu        void process()
885647Sgblack@eecs.umich.edu        {
895647Sgblack@eecs.umich.edu            warn("Local APIC timer event doesn't do anything!\n");
905647Sgblack@eecs.umich.edu        }
915647Sgblack@eecs.umich.edu    };
925647Sgblack@eecs.umich.edu
935647Sgblack@eecs.umich.edu    ApicTimerEvent apicTimerEvent;
945647Sgblack@eecs.umich.edu
955086Sgblack@eecs.umich.edu  public:
965647Sgblack@eecs.umich.edu    typedef X86LocalApicParams Params;
975647Sgblack@eecs.umich.edu
985648Sgblack@eecs.umich.edu    void setClock(Tick newClock)
995648Sgblack@eecs.umich.edu    {
1005648Sgblack@eecs.umich.edu        clock = newClock;
1015648Sgblack@eecs.umich.edu    }
1025648Sgblack@eecs.umich.edu
1035647Sgblack@eecs.umich.edu    const Params *
1045647Sgblack@eecs.umich.edu    params() const
1055086Sgblack@eecs.umich.edu    {
1065647Sgblack@eecs.umich.edu        return dynamic_cast<const Params *>(_params);
1075647Sgblack@eecs.umich.edu    }
1085647Sgblack@eecs.umich.edu
1095648Sgblack@eecs.umich.edu    Tick read(PacketPtr pkt);
1105648Sgblack@eecs.umich.edu    Tick write(PacketPtr pkt);
1115647Sgblack@eecs.umich.edu
1125648Sgblack@eecs.umich.edu    void addressRanges(AddrRangeList &range_list)
1135648Sgblack@eecs.umich.edu    {
1145648Sgblack@eecs.umich.edu        range_list.clear();
1155648Sgblack@eecs.umich.edu        range_list.push_back(RangeEx(x86LocalAPICAddress(0, 0),
1165648Sgblack@eecs.umich.edu                                     x86LocalAPICAddress(0, 0) + PageBytes));
1175648Sgblack@eecs.umich.edu    }
1185647Sgblack@eecs.umich.edu
1195648Sgblack@eecs.umich.edu    uint32_t readReg(ApicRegIndex miscReg);
1205648Sgblack@eecs.umich.edu    void setReg(ApicRegIndex reg, uint32_t val);
1215648Sgblack@eecs.umich.edu    void setRegNoEffect(ApicRegIndex reg, uint32_t val)
1225647Sgblack@eecs.umich.edu    {
1235648Sgblack@eecs.umich.edu        regs[reg] = val;
1245648Sgblack@eecs.umich.edu    }
1255648Sgblack@eecs.umich.edu
1265648Sgblack@eecs.umich.edu    Interrupts(Params * p) : BasicPioDevice(p),
1275648Sgblack@eecs.umich.edu                             latency(p->pio_latency), clock(0)
1285648Sgblack@eecs.umich.edu    {
1295648Sgblack@eecs.umich.edu        pioSize = PageBytes;
1305647Sgblack@eecs.umich.edu        //Set the local apic DFR to the flat model.
1315647Sgblack@eecs.umich.edu        regs[APIC_DESTINATION_FORMAT] = (uint32_t)(-1);
1325647Sgblack@eecs.umich.edu        memset(regs, 0, sizeof(regs));
1335086Sgblack@eecs.umich.edu        clear_all();
1345086Sgblack@eecs.umich.edu    }
1355086Sgblack@eecs.umich.edu
1365086Sgblack@eecs.umich.edu    int InterruptLevel(uint64_t softint)
1375086Sgblack@eecs.umich.edu    {
1385133Sgblack@eecs.umich.edu        panic("Interrupts::InterruptLevel unimplemented!\n");
1395086Sgblack@eecs.umich.edu        return 0;
1405086Sgblack@eecs.umich.edu    }
1415086Sgblack@eecs.umich.edu
1425086Sgblack@eecs.umich.edu    void post(int int_num, int index)
1435086Sgblack@eecs.umich.edu    {
1445133Sgblack@eecs.umich.edu        panic("Interrupts::post unimplemented!\n");
1455086Sgblack@eecs.umich.edu    }
1465086Sgblack@eecs.umich.edu
1475086Sgblack@eecs.umich.edu    void clear(int int_num, int index)
1485086Sgblack@eecs.umich.edu    {
1495134Sgblack@eecs.umich.edu        warn("Interrupts::clear unimplemented!\n");
1505086Sgblack@eecs.umich.edu    }
1515086Sgblack@eecs.umich.edu
1525086Sgblack@eecs.umich.edu    void clear_all()
1535086Sgblack@eecs.umich.edu    {
1545133Sgblack@eecs.umich.edu        warn("Interrupts::clear_all unimplemented!\n");
1555086Sgblack@eecs.umich.edu    }
1565086Sgblack@eecs.umich.edu
1575086Sgblack@eecs.umich.edu    bool check_interrupts(ThreadContext * tc) const
1585086Sgblack@eecs.umich.edu    {
1595086Sgblack@eecs.umich.edu        return false;
1605086Sgblack@eecs.umich.edu    }
1615086Sgblack@eecs.umich.edu
1625086Sgblack@eecs.umich.edu    Fault getInterrupt(ThreadContext * tc)
1635086Sgblack@eecs.umich.edu    {
1645086Sgblack@eecs.umich.edu        return NoFault;
1655086Sgblack@eecs.umich.edu    }
1665086Sgblack@eecs.umich.edu
1675086Sgblack@eecs.umich.edu    void updateIntrInfo(ThreadContext * tc)
1685086Sgblack@eecs.umich.edu    {
1695133Sgblack@eecs.umich.edu        panic("Interrupts::updateIntrInfo unimplemented!\n");
1705086Sgblack@eecs.umich.edu    }
1715086Sgblack@eecs.umich.edu
1725086Sgblack@eecs.umich.edu    void serialize(std::ostream & os)
1735086Sgblack@eecs.umich.edu    {
1745133Sgblack@eecs.umich.edu        panic("Interrupts::serialize unimplemented!\n");
1755086Sgblack@eecs.umich.edu    }
1765086Sgblack@eecs.umich.edu
1775086Sgblack@eecs.umich.edu    void unserialize(Checkpoint * cp, const std::string & section)
1785086Sgblack@eecs.umich.edu    {
1795133Sgblack@eecs.umich.edu        panic("Interrupts::unserialize unimplemented!\n");
1805086Sgblack@eecs.umich.edu    }
1815086Sgblack@eecs.umich.edu};
1825086Sgblack@eecs.umich.edu
1834120Sgblack@eecs.umich.edu};
1844120Sgblack@eecs.umich.edu
1854120Sgblack@eecs.umich.edu#endif // __ARCH_X86_INTERRUPTS_HH__
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