ev5.hh revision 2107
1/* 2 * Copyright (c) 2002-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef __ARCH_ALPHA_EV5_HH__ 30#define __ARCH_ALPHA_EV5_HH__ 31 32#include "config/alpha_tlaser.hh" 33#include "arch/alpha/isa_traits.hh" 34 35namespace EV5 { 36 37//It seems like a safe assumption EV5 only applies to alpha 38using namespace AlphaISA; 39 40#if ALPHA_TLASER 41const uint64_t AsnMask = ULL(0x7f); 42#else 43const uint64_t AsnMask = ULL(0xff); 44#endif 45 46const int VAddrImplBits = 43; 47const Addr VAddrImplMask = (ULL(1) << VAddrImplBits) - 1; 48const Addr VAddrUnImplMask = ~VAddrImplMask; 49inline Addr VAddrImpl(Addr a) { return a & VAddrImplMask; } 50inline Addr VAddrVPN(Addr a) { return a >> AlphaISA::PageShift; } 51inline Addr VAddrOffset(Addr a) { return a & AlphaISA::PageOffset; } 52inline Addr VAddrSpaceEV5(Addr a) { return a >> 41 & 0x3; } 53inline Addr VAddrSpaceEV6(Addr a) { return a >> 41 & 0x7f; } 54 55#if ALPHA_TLASER 56inline bool PAddrIprSpace(Addr a) { return a >= ULL(0xFFFFF00000); } 57const int PAddrImplBits = 40; 58#else 59inline bool PAddrIprSpace(Addr a) { return a >= ULL(0xFFFFFF00000); } 60const int PAddrImplBits = 44; // for Tsunami 61#endif 62const Addr PAddrImplMask = (ULL(1) << PAddrImplBits) - 1; 63const Addr PAddrUncachedBit39 = ULL(0x8000000000); 64const Addr PAddrUncachedBit40 = ULL(0x10000000000); 65const Addr PAddrUncachedBit43 = ULL(0x80000000000); 66const Addr PAddrUncachedMask = ULL(0x807ffffffff); // Clear PA<42:35> 67inline Addr Phys2K0Seg(Addr addr) 68{ 69#if !ALPHA_TLASER 70 if (addr & PAddrUncachedBit43) { 71 addr &= PAddrUncachedMask; 72 addr |= PAddrUncachedBit40; 73 } 74#endif 75 return addr | AlphaISA::K0SegBase; 76} 77 78inline int DTB_ASN_ASN(uint64_t reg) { return reg >> 57 & AsnMask; } 79inline Addr DTB_PTE_PPN(uint64_t reg) 80{ return reg >> 32 & (ULL(1) << PAddrImplBits - AlphaISA::PageShift) - 1; } 81inline int DTB_PTE_XRE(uint64_t reg) { return reg >> 8 & 0xf; } 82inline int DTB_PTE_XWE(uint64_t reg) { return reg >> 12 & 0xf; } 83inline int DTB_PTE_FONR(uint64_t reg) { return reg >> 1 & 0x1; } 84inline int DTB_PTE_FONW(uint64_t reg) { return reg >> 2 & 0x1; } 85inline int DTB_PTE_GH(uint64_t reg) { return reg >> 5 & 0x3; } 86inline int DTB_PTE_ASMA(uint64_t reg) { return reg >> 4 & 0x1; } 87 88inline int ITB_ASN_ASN(uint64_t reg) { return reg >> 4 & AsnMask; } 89inline Addr ITB_PTE_PPN(uint64_t reg) 90{ return reg >> 32 & (ULL(1) << PAddrImplBits - AlphaISA::PageShift) - 1; } 91inline int ITB_PTE_XRE(uint64_t reg) { return reg >> 8 & 0xf; } 92inline bool ITB_PTE_FONR(uint64_t reg) { return reg >> 1 & 0x1; } 93inline bool ITB_PTE_FONW(uint64_t reg) { return reg >> 2 & 0x1; } 94inline int ITB_PTE_GH(uint64_t reg) { return reg >> 5 & 0x3; } 95inline bool ITB_PTE_ASMA(uint64_t reg) { return reg >> 4 & 0x1; } 96 97inline uint64_t MCSR_SP(uint64_t reg) { return reg >> 1 & 0x3; } 98 99inline bool ICSR_SDE(uint64_t reg) { return reg >> 30 & 0x1; } 100inline int ICSR_SPE(uint64_t reg) { return reg >> 28 & 0x3; } 101inline bool ICSR_FPE(uint64_t reg) { return reg >> 26 & 0x1; } 102 103inline uint64_t ALT_MODE_AM(uint64_t reg) { return reg >> 3 & 0x3; } 104inline uint64_t DTB_CM_CM(uint64_t reg) { return reg >> 3 & 0x3; } 105inline uint64_t ICM_CM(uint64_t reg) { return reg >> 3 & 0x3; } 106 107const uint64_t MM_STAT_BAD_VA_MASK = ULL(0x0020); 108const uint64_t MM_STAT_DTB_MISS_MASK = ULL(0x0010); 109const uint64_t MM_STAT_FONW_MASK = ULL(0x0008); 110const uint64_t MM_STAT_FONR_MASK = ULL(0x0004); 111const uint64_t MM_STAT_ACV_MASK = ULL(0x0002); 112const uint64_t MM_STAT_WR_MASK = ULL(0x0001); 113inline int Opcode(AlphaISA::MachInst inst) { return inst >> 26 & 0x3f; } 114inline int Ra(AlphaISA::MachInst inst) { return inst >> 21 & 0x1f; } 115 116const Addr PalBase = 0x4000; 117const Addr PalMax = 0x10000; 118 119/* namespace EV5 */ } 120 121#endif // __ARCH_ALPHA_EV5_HH__ 122