faults.cc (5764:f07df23e1fc8) faults.cc (6739:48d10ba361c9)
1/*
2 * Copyright (c) 2003-2005 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;

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139DtbFault::invoke(ThreadContext *tc)
140{
141 // Set fault address and flags. Even though we're modeling an
142 // EV5, we use the EV6 technique of not latching fault registers
143 // on VPTE loads (instead of locking the registers until IPR_VA is
144 // read, like the EV5). The EV6 approach is cleaner and seems to
145 // work with EV5 PAL code, but not the other way around.
146 if (!tc->misspeculating() &&
1/*
2 * Copyright (c) 2003-2005 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;

--- 130 unchanged lines hidden (view full) ---

139DtbFault::invoke(ThreadContext *tc)
140{
141 // Set fault address and flags. Even though we're modeling an
142 // EV5, we use the EV6 technique of not latching fault registers
143 // on VPTE loads (instead of locking the registers until IPR_VA is
144 // read, like the EV5). The EV6 approach is cleaner and seems to
145 // work with EV5 PAL code, but not the other way around.
146 if (!tc->misspeculating() &&
147 reqFlags.noneSet(Request::VPTE|Request::NO_FAULT)) {
147 reqFlags.noneSet(Request::VPTE | Request::PREFETCH)) {
148 // set VA register with faulting address
149 tc->setMiscRegNoEffect(IPR_VA, vaddr);
150
151 // set MM_STAT register flags
152 tc->setMiscRegNoEffect(IPR_MM_STAT,
153 (((Opcode(tc->getInst()) & 0x3f) << 11) |
154 ((Ra(tc->getInst()) & 0x1f) << 6) |
155 (flags & 0x3f)));

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148 // set VA register with faulting address
149 tc->setMiscRegNoEffect(IPR_VA, vaddr);
150
151 // set MM_STAT register flags
152 tc->setMiscRegNoEffect(IPR_MM_STAT,
153 (((Opcode(tc->getInst()) & 0x3f) << 11) |
154 ((Ra(tc->getInst()) & 0x1f) << 6) |
155 (flags & 0x3f)));

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