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/*
* Copyright 2019 Google Inc.
*
* 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.
*
* Authors: Gabe Black
*/
#include "arch/arm/fastmodel/iris/tlb.hh"
#include "arch/arm/fastmodel/iris/thread_context.hh"
#include "arch/generic/debugfaults.hh"
#include "params/IrisTLB.hh"
#include "sim/faults.hh"
Fault
Iris::TLB::translateFunctional(
const RequestPtr &req, ::ThreadContext *tc, Mode mode)
{
auto *itc = dynamic_cast<Iris::ThreadContext *>(tc);
panic_if(!itc, "Failed to cast to Iris::ThreadContext *");
Addr vaddr = req->getVaddr();
Addr paddr = 0;
bool success = itc->translateAddress(paddr, vaddr);
if (!success) {
return std::make_shared<GenericISA::M5PanicFault>(
"Failed translation");
} else {
req->setPaddr(paddr);
return NoFault;
}
}
Fault
Iris::TLB::translateAtomic(
const RequestPtr &req, ::ThreadContext *tc, Mode mode)
{
return translateFunctional(req, tc, mode);
}
void
Iris::TLB::translateTiming(const RequestPtr &req, ::ThreadContext *tc,
Translation *translation, Mode mode)
{
assert(translation);
translation->finish(translateAtomic(req, tc, mode), req, tc, mode);
}
Iris::TLB *
IrisTLBParams::create()
{
return new Iris::TLB(this);
}
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