2 * Copyright (c) 2004 The Regents of The University of Michigan
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.
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
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26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include "cpu/exec_context.hh"
30 #include "cpu/base_cpu.hh"
31 #include "cpu/full_cpu/bpred.hh"
32 #include "cpu/full_cpu/full_cpu.hh"
33 #include "kern/kernel_stats.hh"
34 #include "kern/system_events.hh"
35 #include "sim/system.hh"
38 SkipFuncEvent::process(ExecContext
*xc
)
40 Addr newpc
= xc
->regs
.intRegFile
[ReturnAddressReg
];
42 DPRINTF(PCEvent
, "skipping %s: pc=%x, newpc=%x\n", description
,
46 xc
->regs
.npc
= xc
->regs
.pc
+ sizeof(MachInst
);
48 BranchPred
*bp
= xc
->cpu
->getBranchPred();
50 bp
->popRAS(xc
->thread_num
);
55 FnEvent::FnEvent(PCEventQueue
*q
, const std::string
&desc
, Stats::MainBin
*bin
)
56 : PCEvent(q
, desc
), _name(desc
), mybin(bin
)
61 FnEvent::process(ExecContext
*xc
)
63 if (xc
->misspeculating())
66 xc
->system
->kernelBinning
->call(xc
, mybin
);
70 IdleStartEvent::process(ExecContext
*xc
)
72 xc
->kernelStats
->setIdleProcess(xc
->regs
.ipr
[AlphaISA::IPR_PALtemp23
]);
77 InterruptStartEvent::process(ExecContext
*xc
)
79 xc
->kernelStats
->mode(Kernel::interrupt
);
83 InterruptEndEvent::process(ExecContext
*xc
)
85 // We go back to kernel, if we are user, inside the rti
86 // pal code we will get switched to user because of the ICM write
87 xc
->kernelStats
->mode(Kernel::kernel
);