utility.cc revision 7650
1/* 2 * Copyright (c) 2009-2010 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: Ali Saidi 38 */ 39 40 41#include "arch/arm/faults.hh" 42#include "arch/arm/utility.hh" 43#include "cpu/thread_context.hh" 44 45 46namespace ArmISA { 47 48void 49initCPU(ThreadContext *tc, int cpuId) 50{ 51 // Reset CP15?? What does that mean -- ali 52 53 // FPEXC.EN = 0 54 55 static Fault reset = new Reset; 56 if (cpuId == 0) 57 reset->invoke(tc); 58} 59 60uint64_t getArgument(ThreadContext *tc, int number, bool fp) { 61#if FULL_SYSTEM 62 if (number < NumArgumentRegs) { 63 if (fp) 64 panic("getArgument(): Floating point arguments not implemented\n"); 65 else 66 return tc->readIntReg(number); 67 } 68 else { 69 panic("getArgument(): Argument index %d beyond max supported (%d).\n", 70 number, NumArgumentRegs - 1); 71 } 72#else 73 panic("getArgument() only implemented for FULL_SYSTEM\n"); 74 M5_DUMMY_RETURN 75#endif 76} 77 78Fault 79setCp15Register(uint32_t &Rd, int CRn, int opc1, int CRm, int opc2) 80{ 81 return new UnimpFault(csprintf("MCR CP15: CRn: %d opc1: %d CRm: %d opc1: %d\n", 82 CRn, opc1, CRm, opc2)); 83} 84 85Fault 86readCp15Register(uint32_t &Rd, int CRn, int opc1, int CRm, int opc2) 87{ 88 return new UnimpFault(csprintf("MRC CP15: CRn: %d opc1: %d CRm: %d opc1: %d\n", 89 CRn, opc1, CRm, opc2)); 90 91} 92 93 94} 95