pagetable.hh revision 3804
13804Ssaidi@eecs.umich.edu/* 23804Ssaidi@eecs.umich.edu * Copyright (c) 2006 The Regents of The University of Michigan 33804Ssaidi@eecs.umich.edu * All rights reserved. 43804Ssaidi@eecs.umich.edu * 53804Ssaidi@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 63804Ssaidi@eecs.umich.edu * modification, are permitted provided that the following conditions are 73804Ssaidi@eecs.umich.edu * met: redistributions of source code must retain the above copyright 83804Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 93804Ssaidi@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 103804Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 113804Ssaidi@eecs.umich.edu * documentation and/or other materials provided with the distribution; 123804Ssaidi@eecs.umich.edu * neither the name of the copyright holders nor the names of its 133804Ssaidi@eecs.umich.edu * contributors may be used to endorse or promote products derived from 143804Ssaidi@eecs.umich.edu * this software without specific prior written permission. 153804Ssaidi@eecs.umich.edu * 163804Ssaidi@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 173804Ssaidi@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 183804Ssaidi@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 193804Ssaidi@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 203804Ssaidi@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 213804Ssaidi@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 223804Ssaidi@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 233804Ssaidi@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 243804Ssaidi@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 253804Ssaidi@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 263804Ssaidi@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 273804Ssaidi@eecs.umich.edu * 283804Ssaidi@eecs.umich.edu * Authors: Ali Saidi 293804Ssaidi@eecs.umich.edu */ 303804Ssaidi@eecs.umich.edu 313804Ssaidi@eecs.umich.edu#ifndef __ARCH_SPARC_PAGETABLE_HH__ 323804Ssaidi@eecs.umich.edu#define __ARCH_SPARC_PAGETABLE_HH__ 333804Ssaidi@eecs.umich.edu 343804Ssaidi@eecs.umich.edu#include "arch/sparc/isa_traits.hh" 353804Ssaidi@eecs.umich.edu#include "config/full_system.hh" 363804Ssaidi@eecs.umich.edu 373804Ssaidi@eecs.umich.edunamespace SparcISA 383804Ssaidi@eecs.umich.edu{ 393804Ssaidi@eecs.umich.edustruct VAddr 403804Ssaidi@eecs.umich.edu{ 413804Ssaidi@eecs.umich.edu VAddr(Addr a) { panic("not implemented yet."); } 423804Ssaidi@eecs.umich.edu}; 433804Ssaidi@eecs.umich.edu 443804Ssaidi@eecs.umich.educlass PageTableEntry 453804Ssaidi@eecs.umich.edu{ 463804Ssaidi@eecs.umich.edu public: 473804Ssaidi@eecs.umich.edu enum EntryType { 483804Ssaidi@eecs.umich.edu sun4v, 493804Ssaidi@eecs.umich.edu sun4u, 503804Ssaidi@eecs.umich.edu invalid 513804Ssaidi@eecs.umich.edu }; 523804Ssaidi@eecs.umich.edu 533804Ssaidi@eecs.umich.edu private: 543804Ssaidi@eecs.umich.edu uint64_t entry; 553804Ssaidi@eecs.umich.edu EntryType type; 563804Ssaidi@eecs.umich.edu uint64_t entry4u; 573804Ssaidi@eecs.umich.edu bool populated; 583804Ssaidi@eecs.umich.edu 593804Ssaidi@eecs.umich.edu 603804Ssaidi@eecs.umich.edu public: 613804Ssaidi@eecs.umich.edu PageTableEntry() : entry(0), type(invalid), populated(false) {} 623804Ssaidi@eecs.umich.edu 633804Ssaidi@eecs.umich.edu PageTableEntry(uint64_t e, EntryType t = sun4u) 643804Ssaidi@eecs.umich.edu : entry(e), type(t), populated(true) 653804Ssaidi@eecs.umich.edu 663804Ssaidi@eecs.umich.edu { 673804Ssaidi@eecs.umich.edu populate(entry, type); 683804Ssaidi@eecs.umich.edu } 693804Ssaidi@eecs.umich.edu 703804Ssaidi@eecs.umich.edu void populate(uint64_t e, EntryType t = sun4u) 713804Ssaidi@eecs.umich.edu { 723804Ssaidi@eecs.umich.edu entry = e; 733804Ssaidi@eecs.umich.edu type = t; 743804Ssaidi@eecs.umich.edu populated = true; 753804Ssaidi@eecs.umich.edu 763804Ssaidi@eecs.umich.edu // If we get a sun4v format TTE, turn it into a sun4u 773804Ssaidi@eecs.umich.edu if (type == sun4u) 783804Ssaidi@eecs.umich.edu entry4u = entry; 793804Ssaidi@eecs.umich.edu else { 803804Ssaidi@eecs.umich.edu uint64_t entry4u = 0; 813804Ssaidi@eecs.umich.edu entry4u |= entry & ULL(0x8000000000000000); //valid 823804Ssaidi@eecs.umich.edu entry4u |= (entry & 0x3) << 61; //size[1:0] 833804Ssaidi@eecs.umich.edu entry4u |= (entry & ULL(0x4000000000000000)) >> 2; //nfo 843804Ssaidi@eecs.umich.edu entry4u |= (entry & 0x1000) << 47; //ie 853804Ssaidi@eecs.umich.edu //entry4u |= (entry & 0x3F00000000000000) >> 7; //soft2 863804Ssaidi@eecs.umich.edu entry4u |= (entry & 0x4) << 48; //size[2] 873804Ssaidi@eecs.umich.edu //diag? 883804Ssaidi@eecs.umich.edu entry4u |= (entry & ULL(0x0000FFFFFFFFE000)); //paddr 893804Ssaidi@eecs.umich.edu entry4u |= (entry & 0x400) >> 5; //cp 903804Ssaidi@eecs.umich.edu entry4u |= (entry & 0x200) >> 5; //cv 913804Ssaidi@eecs.umich.edu entry4u |= (entry & 0x800) >> 8; //e 923804Ssaidi@eecs.umich.edu entry4u |= (entry & 0x100) >> 6; //p 933804Ssaidi@eecs.umich.edu entry4u |= (entry & 0x40) >> 5; //w 943804Ssaidi@eecs.umich.edu } 953804Ssaidi@eecs.umich.edu } 963804Ssaidi@eecs.umich.edu 973804Ssaidi@eecs.umich.edu void clear() 983804Ssaidi@eecs.umich.edu { 993804Ssaidi@eecs.umich.edu populated = false; 1003804Ssaidi@eecs.umich.edu } 1013804Ssaidi@eecs.umich.edu 1023804Ssaidi@eecs.umich.edu static int pageSizes[6]; 1033804Ssaidi@eecs.umich.edu 1043804Ssaidi@eecs.umich.edu 1053804Ssaidi@eecs.umich.edu uint64_t operator()() const { assert(populated); return entry4u; } 1063804Ssaidi@eecs.umich.edu const PageTableEntry &operator=(uint64_t e) { populated = true; 1073804Ssaidi@eecs.umich.edu entry4u = e; return *this; } 1083804Ssaidi@eecs.umich.edu 1093804Ssaidi@eecs.umich.edu const PageTableEntry &operator=(const PageTableEntry &e) 1103804Ssaidi@eecs.umich.edu { populated = true; entry4u = e.entry4u; return *this; } 1113804Ssaidi@eecs.umich.edu 1123804Ssaidi@eecs.umich.edu bool valid() const { return entry4u & ULL(0x8000000000000000) && populated; } 1133804Ssaidi@eecs.umich.edu uint8_t _size() const { assert(populated); 1143804Ssaidi@eecs.umich.edu return ((entry4u & 0x6) >> 61) | 1153804Ssaidi@eecs.umich.edu ((entry4u & ULL(0x000080000000000)) >> 46); } 1163804Ssaidi@eecs.umich.edu Addr size() const { return pageSizes[_size()]; } 1173804Ssaidi@eecs.umich.edu bool ie() const { return entry4u >> 59 & 0x1; } 1183804Ssaidi@eecs.umich.edu Addr pfn() const { assert(populated); 1193804Ssaidi@eecs.umich.edu return entry4u >> 13 & ULL(0xFFFFFFFFFF); } 1203804Ssaidi@eecs.umich.edu Addr paddr() const { assert(populated); 1213804Ssaidi@eecs.umich.edu return entry4u & ULL(0x0000FFFFFFFFE000); } 1223804Ssaidi@eecs.umich.edu bool locked() const { assert(populated); 1233804Ssaidi@eecs.umich.edu return entry4u & 0x40; } 1243804Ssaidi@eecs.umich.edu bool cv() const { assert(populated); 1253804Ssaidi@eecs.umich.edu return entry4u & 0x10; } 1263804Ssaidi@eecs.umich.edu bool cp() const { assert(populated); 1273804Ssaidi@eecs.umich.edu return entry4u & 0x20; } 1283804Ssaidi@eecs.umich.edu bool priv() const { assert(populated); 1293804Ssaidi@eecs.umich.edu return entry4u & 0x4; } 1303804Ssaidi@eecs.umich.edu bool writable() const { assert(populated); 1313804Ssaidi@eecs.umich.edu return entry4u & 0x2; } 1323804Ssaidi@eecs.umich.edu bool nofault() const { assert(populated); 1333804Ssaidi@eecs.umich.edu return entry4u & ULL(0x1000000000000000); } 1343804Ssaidi@eecs.umich.edu bool sideffect() const { assert(populated); 1353804Ssaidi@eecs.umich.edu return entry4u & 0x8; } 1363804Ssaidi@eecs.umich.edu}; 1373804Ssaidi@eecs.umich.edu 1383804Ssaidi@eecs.umich.edustruct TlbRange { 1393804Ssaidi@eecs.umich.edu Addr va; 1403804Ssaidi@eecs.umich.edu Addr size; 1413804Ssaidi@eecs.umich.edu int contextId; 1423804Ssaidi@eecs.umich.edu int partitionId; 1433804Ssaidi@eecs.umich.edu bool real; 1443804Ssaidi@eecs.umich.edu 1453804Ssaidi@eecs.umich.edu inline bool operator<(const TlbRange &r2) const 1463804Ssaidi@eecs.umich.edu { 1473804Ssaidi@eecs.umich.edu if (real && !r2.real) 1483804Ssaidi@eecs.umich.edu return true; 1493804Ssaidi@eecs.umich.edu if (!real && r2.real) 1503804Ssaidi@eecs.umich.edu return false; 1513804Ssaidi@eecs.umich.edu 1523804Ssaidi@eecs.umich.edu if (!real && !r2.real) { 1533804Ssaidi@eecs.umich.edu if (contextId < r2.contextId) 1543804Ssaidi@eecs.umich.edu return true; 1553804Ssaidi@eecs.umich.edu else if (contextId > r2.contextId) 1563804Ssaidi@eecs.umich.edu return false; 1573804Ssaidi@eecs.umich.edu } 1583804Ssaidi@eecs.umich.edu 1593804Ssaidi@eecs.umich.edu if (partitionId < r2.partitionId) 1603804Ssaidi@eecs.umich.edu return true; 1613804Ssaidi@eecs.umich.edu else if (partitionId > r2.partitionId) 1623804Ssaidi@eecs.umich.edu return false; 1633804Ssaidi@eecs.umich.edu 1643804Ssaidi@eecs.umich.edu if (va < r2.va) 1653804Ssaidi@eecs.umich.edu return true; 1663804Ssaidi@eecs.umich.edu return false; 1673804Ssaidi@eecs.umich.edu } 1683804Ssaidi@eecs.umich.edu inline bool operator==(const TlbRange &r2) const 1693804Ssaidi@eecs.umich.edu { 1703804Ssaidi@eecs.umich.edu return va == r2.va && 1713804Ssaidi@eecs.umich.edu size == r2.size && 1723804Ssaidi@eecs.umich.edu contextId == r2.contextId && 1733804Ssaidi@eecs.umich.edu partitionId == r2.partitionId && 1743804Ssaidi@eecs.umich.edu real == r2.real; 1753804Ssaidi@eecs.umich.edu } 1763804Ssaidi@eecs.umich.edu}; 1773804Ssaidi@eecs.umich.edu 1783804Ssaidi@eecs.umich.edu 1793804Ssaidi@eecs.umich.edustruct TlbEntry { 1803804Ssaidi@eecs.umich.edu TlbRange range; 1813804Ssaidi@eecs.umich.edu PageTableEntry pte; 1823804Ssaidi@eecs.umich.edu bool used; 1833804Ssaidi@eecs.umich.edu bool valid; 1843804Ssaidi@eecs.umich.edu 1853804Ssaidi@eecs.umich.edu void serialize(std::ostream &os); 1863804Ssaidi@eecs.umich.edu void unserialize(Checkpoint *cp, const std::string §ion); 1873804Ssaidi@eecs.umich.edu 1883804Ssaidi@eecs.umich.edu}; 1893804Ssaidi@eecs.umich.edu 1903804Ssaidi@eecs.umich.edu 1913804Ssaidi@eecs.umich.edu}; // namespace SparcISA 1923804Ssaidi@eecs.umich.edu 1933804Ssaidi@eecs.umich.edu#endif // __ARCH_SPARC_PAGE_TABLE_HH__ 1943804Ssaidi@eecs.umich.edu 195