src/mem/port_proxy.cc

   1 /*
   2  * Copyright (c) 2012, 2018 ARM Limited
   3  * All rights reserved
   4  *
   5  * The license below extends only to copyright in the software and shall
   6  * not be construed as granting a license to any other intellectual
   7  * property including but not limited to intellectual property relating
   8  * to a hardware implementation of the functionality of the software
   9  * licensed hereunder.  You may use the software subject to the license
  10  * terms below provided that you ensure that this notice is replicated
  11  * unmodified and in its entirety in all distributions of the software,
  12  * modified or unmodified, in source code or in binary form.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions are
  16  * met: redistributions of source code must retain the above copyright
  17  * notice, this list of conditions and the following disclaimer;
  18  * redistributions in binary form must reproduce the above copyright
  19  * notice, this list of conditions and the following disclaimer in the
  20  * documentation and/or other materials provided with the distribution;
  21  * neither the name of the copyright holders nor the names of its
  22  * contributors may be used to endorse or promote products derived from
  23  * this software without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  26  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  27  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  28  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  29  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  30  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  31  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  32  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  35  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  *
  37  * Authors: Andreas Hansson
  38  */
  39
  40 #include "mem/port_proxy.hh"
  41
  42 #include "base/chunk_generator.hh"
  43
  44 void
  45 PortProxy::readBlobPhys(Addr addr, Request::Flags flags,
  46                         uint8_t *p, int size) const
  47 {
  48     for (ChunkGenerator gen(addr, size, _cacheLineSize); !gen.done();
  49          gen.next()) {
  50         Request req(gen.addr(), gen.size(), flags, Request::funcMasterId);
  51         Packet pkt(&req, MemCmd::ReadReq);
  52         pkt.dataStatic(p);
  53         _port.sendFunctional(&pkt);
  54         p += gen.size();
  55     }
  56 }
  57
  58 void
  59 PortProxy::writeBlobPhys(Addr addr, Request::Flags flags,
  60                          const uint8_t *p, int size) const
  61 {
  62     for (ChunkGenerator gen(addr, size, _cacheLineSize); !gen.done();
  63          gen.next()) {
  64         Request req(gen.addr(), gen.size(), flags, Request::funcMasterId);
  65         Packet pkt(&req, MemCmd::WriteReq);
  66         pkt.dataStaticConst(p);
  67         _port.sendFunctional(&pkt);
  68         p += gen.size();
  69     }
  70 }
  71
  72 void
  73 PortProxy::memsetBlobPhys(Addr addr, Request::Flags flags,
  74                           uint8_t v, int size) const
  75 {
  76     // quick and dirty...
  77     uint8_t *buf = new uint8_t[size];
  78
  79     std::memset(buf, v, size);
  80     PortProxy::writeBlobPhys(addr, flags, buf, size);
  81
  82     delete [] buf;
  83 }
  84
  85
  86 void
  87 SecurePortProxy::readBlob(Addr addr, uint8_t *p, int size) const
  88 {
  89     readBlobPhys(addr, Request::SECURE, p, size);
  90 }
  91
  92 void
  93 SecurePortProxy::writeBlob(Addr addr, const uint8_t *p, int size) const
  94 {
  95     writeBlobPhys(addr, Request::SECURE, p, size);
  96 }
  97
  98 void
  99 SecurePortProxy::memsetBlob(Addr addr, uint8_t v, int size) const
 100 {
 101     memsetBlobPhys(addr, Request::SECURE, v, size);
 102 }