amba_device.cc revision 9808
17584SAli.Saidi@arm.com/* 27584SAli.Saidi@arm.com * Copyright (c) 2010 ARM Limited 37584SAli.Saidi@arm.com * All rights reserved 47584SAli.Saidi@arm.com * 57584SAli.Saidi@arm.com * The license below extends only to copyright in the software and shall 67584SAli.Saidi@arm.com * not be construed as granting a license to any other intellectual 77584SAli.Saidi@arm.com * property including but not limited to intellectual property relating 87584SAli.Saidi@arm.com * to a hardware implementation of the functionality of the software 97584SAli.Saidi@arm.com * licensed hereunder. You may use the software subject to the license 107584SAli.Saidi@arm.com * terms below provided that you ensure that this notice is replicated 117584SAli.Saidi@arm.com * unmodified and in its entirety in all distributions of the software, 127584SAli.Saidi@arm.com * modified or unmodified, in source code or in binary form. 137584SAli.Saidi@arm.com * 147584SAli.Saidi@arm.com * Copyright (c) 2005 The Regents of The University of Michigan 157584SAli.Saidi@arm.com * All rights reserved. 167584SAli.Saidi@arm.com * 177584SAli.Saidi@arm.com * Redistribution and use in source and binary forms, with or without 187584SAli.Saidi@arm.com * modification, are permitted provided that the following conditions are 197584SAli.Saidi@arm.com * met: redistributions of source code must retain the above copyright 207584SAli.Saidi@arm.com * notice, this list of conditions and the following disclaimer; 217584SAli.Saidi@arm.com * redistributions in binary form must reproduce the above copyright 227584SAli.Saidi@arm.com * notice, this list of conditions and the following disclaimer in the 237584SAli.Saidi@arm.com * documentation and/or other materials provided with the distribution; 247584SAli.Saidi@arm.com * neither the name of the copyright holders nor the names of its 257584SAli.Saidi@arm.com * contributors may be used to endorse or promote products derived from 267584SAli.Saidi@arm.com * this software without specific prior written permission. 277584SAli.Saidi@arm.com * 287584SAli.Saidi@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 297584SAli.Saidi@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 307584SAli.Saidi@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 317584SAli.Saidi@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 327584SAli.Saidi@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 337584SAli.Saidi@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 347584SAli.Saidi@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 357584SAli.Saidi@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 367584SAli.Saidi@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 377584SAli.Saidi@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 387584SAli.Saidi@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 397584SAli.Saidi@arm.com * 407584SAli.Saidi@arm.com * Authors: Ali Saidi 417584SAli.Saidi@arm.com */ 427584SAli.Saidi@arm.com 437584SAli.Saidi@arm.com#include "base/trace.hh" 448245Snate@binkert.org#include "debug/AMBA.hh" 458229Snate@binkert.org#include "dev/arm/amba_device.hh" 467584SAli.Saidi@arm.com#include "dev/arm/amba_fake.hh" 477584SAli.Saidi@arm.com#include "mem/packet.hh" 487584SAli.Saidi@arm.com#include "mem/packet_access.hh" 497584SAli.Saidi@arm.com 507753SWilliam.Wang@arm.comconst uint64_t AmbaVendor = ULL(0xb105f00d00000000); 517950SAli.Saidi@ARM.com 529808Sstever@gmail.comAmbaPioDevice::AmbaPioDevice(const Params *p, Addr pio_size) 539808Sstever@gmail.com : BasicPioDevice(p, pio_size), ambaId(AmbaVendor | p->amba_id) 547584SAli.Saidi@arm.com{ 557584SAli.Saidi@arm.com} 567584SAli.Saidi@arm.com 579808Sstever@gmail.comAmbaIntDevice::AmbaIntDevice(const Params *p, Addr pio_size) 589808Sstever@gmail.com : AmbaPioDevice(p, pio_size), 599808Sstever@gmail.com intNum(p->int_num), gic(p->gic), intDelay(p->int_delay) 607950SAli.Saidi@ARM.com{ 617950SAli.Saidi@ARM.com} 627950SAli.Saidi@ARM.com 637950SAli.Saidi@ARM.com 647950SAli.Saidi@ARM.com 657587SAli.Saidi@arm.comAmbaDmaDevice::AmbaDmaDevice(const Params *p) 667753SWilliam.Wang@arm.com : DmaDevice(p), ambaId(AmbaVendor | p->amba_id), 677753SWilliam.Wang@arm.com pioAddr(p->pio_addr), pioSize(0), 687753SWilliam.Wang@arm.com pioDelay(p->pio_latency),intNum(p->int_num), gic(p->gic) 697587SAli.Saidi@arm.com{ 707587SAli.Saidi@arm.com} 717587SAli.Saidi@arm.com 727584SAli.Saidi@arm.combool 739806Sstever@gmail.comAmbaDevice::readId(PacketPtr pkt, uint64_t amba_id, Addr pio_addr) 747584SAli.Saidi@arm.com{ 757587SAli.Saidi@arm.com Addr daddr = pkt->getAddr() - pio_addr; 767584SAli.Saidi@arm.com if (daddr < AMBA_PER_ID0 || daddr > AMBA_CEL_ID3) 777584SAli.Saidi@arm.com return false; 787584SAli.Saidi@arm.com 797584SAli.Saidi@arm.com pkt->allocate(); 807584SAli.Saidi@arm.com 817587SAli.Saidi@arm.com int byte = (daddr - AMBA_PER_ID0) << 1; 827584SAli.Saidi@arm.com // Too noisy right now 839806Sstever@gmail.com DPRINTF(AMBA, "Returning %#x for offset %#x(%d)\n", 849806Sstever@gmail.com (amba_id >> byte) & 0xFF, 857587SAli.Saidi@arm.com pkt->getAddr() - pio_addr, byte); 867584SAli.Saidi@arm.com assert(pkt->getSize() == 4); 877587SAli.Saidi@arm.com pkt->set<uint32_t>((amba_id >> byte) & 0xFF); 887584SAli.Saidi@arm.com return true; 897584SAli.Saidi@arm.com} 90