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/*
* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
* All rights reserved.
*
* This software was developed by the University of Cambridge Computer
* Laboratory as part of the CTSRD Project, with support from the UK Higher
* Education Innovation Fund (HEIF).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "kern/freebsd/events.hh"
#include <sstream>
#include "arch/utility.hh"
#include "base/trace.hh"
#include "cpu/thread_context.hh"
#include "debug/DebugPrintf.hh"
#include "kern/system_events.hh"
#include "sim/arguments.hh"
#include "sim/pseudo_inst.hh"
#include "sim/system.hh"
namespace FreeBSD {
void
UDelayEvent::process(ThreadContext *tc)
{
int arg_num;
arg_num = 0;
// Get the time in native size
uint64_t time = TheISA::getArgument(tc, arg_num, (uint16_t)-1, false);
//DPRINTFN("DELAY(%d)\n", time);
// convert parameter to ns
if (argDivToNs)
time /= argDivToNs;
time *= argMultToNs;
SkipFuncEvent::process(tc);
// Currently, only ARM full-system simulation uses UDelayEvents to skip
// __delay and __loop_delay functions. One form involves setting quiesce
// time to 0 with the assumption that quiesce will not happen. To avoid
// the quiesce handling in this case, only execute the quiesce if time > 0.
if (time > 0) {
PseudoInst::quiesceNs(tc, time);
}
}
} // namespace FreeBSD
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