d869018226
This patch changes the data type used for image size from int to uint64_t. Current version allows initializing AbstractMemory types with a maximum binary size of 2GiB. This will be limiting in many studies. Change-Id: Iea3bbd525d4a67aa7cf606f6311aef66c9b4a52c
125 lines
4.6 KiB
C++
125 lines
4.6 KiB
C++
/*
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* Copyright (c) 2011,2013 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 2006 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file
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* Port object definitions.
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*/
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#include "mem/translating_port_proxy.hh"
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#include "arch/generic/mmu.hh"
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#include "base/chunk_generator.hh"
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#include "cpu/base.hh"
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#include "cpu/thread_context.hh"
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#include "sim/system.hh"
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namespace gem5
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{
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TranslatingPortProxy::TranslatingPortProxy(
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ThreadContext *tc, Request::Flags _flags) :
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PortProxy(tc, tc->getSystemPtr()->cacheLineSize()), _tc(tc), flags(_flags)
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{}
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bool
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TranslatingPortProxy::tryOnBlob(BaseMMU::Mode mode, TranslationGenPtr gen,
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std::function<void(const TranslationGen::Range &)> func) const
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{
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// Wether we're trying to get past a fault.
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bool faulting = false;
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for (const auto &range: *gen) {
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// Was there a fault this time?
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if (range.fault) {
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// If there was a fault last time too, or the fixup this time
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// fails, then the operation has failed.
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if (faulting || !fixupRange(range, mode))
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return false;
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// This must be the first time we've tried this translation, so
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// record that we're making a second attempt and continue.
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faulting = true;
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continue;
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}
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// Run func() on this successful translation.
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faulting = false;
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func(range);
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}
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return true;
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}
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bool
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TranslatingPortProxy::tryReadBlob(Addr addr, void *p, uint64_t size) const
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{
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constexpr auto mode = BaseMMU::Read;
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return tryOnBlob(mode, _tc->getMMUPtr()->translateFunctional(
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addr, size, _tc, mode, flags),
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[this, &p](const auto &range) {
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PortProxy::readBlobPhys(range.paddr, flags, p, range.size);
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p = static_cast<uint8_t *>(p) + range.size;
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});
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}
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bool
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TranslatingPortProxy::tryWriteBlob(
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Addr addr, const void *p, uint64_t size) const
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{
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constexpr auto mode = BaseMMU::Write;
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return tryOnBlob(mode, _tc->getMMUPtr()->translateFunctional(
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addr, size, _tc, mode, flags),
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[this, &p](const auto &range) {
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PortProxy::writeBlobPhys(range.paddr, flags, p, range.size);
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p = static_cast<const uint8_t *>(p) + range.size;
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});
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}
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bool
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TranslatingPortProxy::tryMemsetBlob(Addr addr, uint8_t v, uint64_t size) const
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{
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constexpr auto mode = BaseMMU::Write;
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return tryOnBlob(mode, _tc->getMMUPtr()->translateFunctional(
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addr, size, _tc, mode, flags),
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[this, v](const auto &range) {
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PortProxy::memsetBlobPhys(range.paddr, flags, v, range.size);
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});
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}
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} // namespace gem5
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