Mercurial > jdk8-mips64-public > hotspot / annotate
src/cpu/ppc/vm/icache_ppc.cpp@70aa912cebe5 (annotated)
src/cpu/ppc/vm/icache_ppc.cpp
Wed, 15 Apr 2020 11:49:55 +0800
- author
- aoqi
- date
- Wed, 15 Apr 2020 11:49:55 +0800
- changeset 9852
- 70aa912cebe5
- parent 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
Merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * Copyright 2012, 2013 SAP AG. All rights reserved. |
| aoqi@0 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 5 | * |
| aoqi@0 | 6 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 7 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 8 | * published by the Free Software Foundation. |
| aoqi@0 | 9 | * |
| aoqi@0 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 14 | * accompanied this code). |
| aoqi@0 | 15 | * |
| aoqi@0 | 16 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 19 | * |
| aoqi@0 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 21 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 22 | * questions. |
| aoqi@0 | 23 | * |
| aoqi@0 | 24 | */ |
| aoqi@0 | 25 | |
| aoqi@0 | 26 | #include "precompiled.hpp" |
| aoqi@0 | 27 | #include "assembler_ppc.inline.hpp" |
| aoqi@0 | 28 | #include "runtime/icache.hpp" |
| aoqi@0 | 29 | |
| aoqi@0 | 30 | // Use inline assembler to implement icache flush. |
| aoqi@0 | 31 | int ICache::ppc64_flush_icache(address start, int lines, int magic) { |
| aoqi@0 | 32 | address end = start + (unsigned int)lines*ICache::line_size; |
| aoqi@0 | 33 | assert(start <= end, "flush_icache parms"); |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | // store modified cache lines from data cache |
| aoqi@0 | 36 | for (address a = start; a < end; a += ICache::line_size) { |
| aoqi@0 | 37 | __asm__ __volatile__( |
| aoqi@0 | 38 | "dcbst 0, %0 \n" |
| aoqi@0 | 39 | : |
| aoqi@0 | 40 | : "r" (a) |
| aoqi@0 | 41 | : "memory"); |
| aoqi@0 | 42 | } |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | // sync instruction |
| aoqi@0 | 45 | __asm__ __volatile__( |
| aoqi@0 | 46 | "sync \n" |
| aoqi@0 | 47 | : |
| aoqi@0 | 48 | : |
| aoqi@0 | 49 | : "memory"); |
| aoqi@0 | 50 | |
| aoqi@0 | 51 | // invalidate respective cache lines in instruction cache |
| aoqi@0 | 52 | for (address a = start; a < end; a += ICache::line_size) { |
| aoqi@0 | 53 | __asm__ __volatile__( |
| aoqi@0 | 54 | "icbi 0, %0 \n" |
| aoqi@0 | 55 | : |
| aoqi@0 | 56 | : "r" (a) |
| aoqi@0 | 57 | : "memory"); |
| aoqi@0 | 58 | } |
| aoqi@0 | 59 | |
| aoqi@0 | 60 | // discard fetched instructions |
| aoqi@0 | 61 | __asm__ __volatile__( |
| aoqi@0 | 62 | "isync \n" |
| aoqi@0 | 63 | : |
| aoqi@0 | 64 | : |
| aoqi@0 | 65 | : "memory"); |
| aoqi@0 | 66 | |
| aoqi@0 | 67 | return magic; |
| aoqi@0 | 68 | } |
| aoqi@0 | 69 | |
| aoqi@0 | 70 | void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) { |
| aoqi@0 | 71 | StubCodeMark mark(this, "ICache", "flush_icache_stub"); |
| aoqi@0 | 72 | |
| aoqi@0 | 73 | *flush_icache_stub = (ICache::flush_icache_stub_t)ICache::ppc64_flush_icache; |
| aoqi@0 | 74 | |
| aoqi@0 | 75 | // First call to flush itself |
| aoqi@0 | 76 | ICache::invalidate_range((address)(*flush_icache_stub), 0); |
| aoqi@0 | 77 | } |
