mirror of
https://github.com/openjdk/jdk.git
synced 2025-09-18 18:14:38 +02:00
94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
/*
|
|
* Copyright (c) 2008, 2016, Oracle and/or its affiliates. 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 "asm/macroAssembler.hpp"
|
|
#include "assembler_arm.inline.hpp"
|
|
#include "runtime/icache.hpp"
|
|
|
|
#define __ _masm->
|
|
|
|
#ifdef AARCH64
|
|
|
|
static int icache_flush(address addr, int lines, int magic) {
|
|
// TODO-AARCH64 Figure out actual cache line size (mrs Xt, CTR_EL0)
|
|
|
|
address p = addr;
|
|
for (int i = 0; i < lines; i++, p += ICache::line_size) {
|
|
__asm__ volatile(
|
|
" dc cvau, %[p]"
|
|
:
|
|
: [p] "r" (p)
|
|
: "memory");
|
|
}
|
|
|
|
__asm__ volatile(
|
|
" dsb ish"
|
|
: : : "memory");
|
|
|
|
p = addr;
|
|
for (int i = 0; i < lines; i++, p += ICache::line_size) {
|
|
__asm__ volatile(
|
|
" ic ivau, %[p]"
|
|
:
|
|
: [p] "r" (p)
|
|
: "memory");
|
|
}
|
|
|
|
__asm__ volatile(
|
|
" dsb ish\n\t"
|
|
" isb\n\t"
|
|
: : : "memory");
|
|
|
|
return magic;
|
|
}
|
|
|
|
#else
|
|
|
|
static int icache_flush(address addr, int lines, int magic) {
|
|
__builtin___clear_cache(addr, addr + (lines << ICache::log2_line_size));
|
|
return magic;
|
|
}
|
|
|
|
#endif // AARCH64
|
|
|
|
void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) {
|
|
address start = (address)icache_flush;
|
|
|
|
*flush_icache_stub = (ICache::flush_icache_stub_t)start;
|
|
|
|
// ICache::invalidate_range() contains explicit condition that the first
|
|
// call is invoked on the generated icache flush stub code range.
|
|
ICache::invalidate_range(start, 0);
|
|
|
|
{
|
|
// dummy code mark to make the shared code happy
|
|
// (fields that would need to be modified to emulate the correct
|
|
// mark are not accessible)
|
|
StubCodeMark mark(this, "ICache", "fake_stub_for_inlined_icache_flush");
|
|
__ ret();
|
|
}
|
|
}
|
|
|
|
#undef __
|