| /* |
| * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2012, 2013 SAP SE. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "assembler_ppc.inline.hpp" |
| #include "runtime/icache.hpp" |
| |
| // Use inline assembler to implement icache flush. |
| int ICache::ppc64_flush_icache(address start, int lines, int magic) { |
| address end = start + (unsigned int)lines*ICache::line_size; |
| assert(start <= end, "flush_icache parms"); |
| |
| // store modified cache lines from data cache |
| for (address a = start; a < end; a += ICache::line_size) { |
| __asm__ __volatile__( |
| "dcbst 0, %0 \n" |
| : |
| : "r" (a) |
| : "memory"); |
| } |
| |
| // sync instruction |
| __asm__ __volatile__( |
| "sync \n" |
| : |
| : |
| : "memory"); |
| |
| // invalidate respective cache lines in instruction cache |
| for (address a = start; a < end; a += ICache::line_size) { |
| __asm__ __volatile__( |
| "icbi 0, %0 \n" |
| : |
| : "r" (a) |
| : "memory"); |
| } |
| |
| // discard fetched instructions |
| __asm__ __volatile__( |
| "isync \n" |
| : |
| : |
| : "memory"); |
| |
| return magic; |
| } |
| |
| void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) { |
| |
| *flush_icache_stub = (ICache::flush_icache_stub_t)ICache::ppc64_flush_icache; |
| |
| // First call to flush itself |
| ICache::invalidate_range((address)(*flush_icache_stub), 0); |
| } |