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view src/os_cpu/linux_aarch64/vm/copy_linux_aarch64.inline.hpp @ 10923:f79e943d15a7
Merge jdk8u292-b05
author | Andrew John Hughes <gnu_andrew@member.fsf.org> |
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date | Sun, 25 Apr 2021 18:18:49 +0100 |
parents | df7be90ca2ab f57189b7648d |
children |
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/* * Copyright (c) 2003, 2010, 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. * */ #ifndef OS_CPU_LINUX_AARCH64_VM_COPY_LINUX_AARCH64_INLINE_HPP #define OS_CPU_LINUX_AARCH64_VM_COPY_LINUX_AARCH64_INLINE_HPP #define COPY_SMALL(from, to, count) \ { \ long tmp0, tmp1, tmp2, tmp3; \ long tmp4, tmp5, tmp6, tmp7; \ __asm volatile( \ " adr %[t0], 0f;" \ " add %[t0], %[t0], %[cnt], lsl #6;" \ " br %[t0];" \ " .align 6;" \ "0:" \ " b 1f;" \ "8:" \ " ldr %[t0], [%[s], #0];" \ " ldp %[t1], %[t2], [%[s], #8];" \ " ldp %[t3], %[t4], [%[s], #24];" \ " ldr %[t5], [%[s], #40];" \ " tbz %[d], #3, 10f;" \ "9:" \ " str %[t0], [%[d], #0];" \ " stp %[t1], %[t2], [%[d], #8];" \ " stp %[t3], %[t4], [%[d], #24];" \ " str %[t5], [%[d], #40];" \ " b 1f;" \ " .align 6;" \ " ldr %[t0], [%[s], #0];" \ " str %[t0], [%[d], #0];" \ " b 1f;" \ "2:" \ " ldr %[t0], [%[s], #0];" \ " ldp %[t1], %[t2], [%[s], #8];" \ " ldp %[t3], %[t4], [%[s], #24];" \ " ldp %[t5], %[t6], [%[s], #40];" \ " ldr %[t7], [%[s], #56];" \ " tbz %[d], #3, 4f;" \ "3:" \ " str %[t0], [%[d], #0];" \ " stp %[t1], %[t2], [%[d], #8];" \ " stp %[t3], %[t4], [%[d], #24];" \ " stp %[t5], %[t6], [%[d], #40];" \ " str %[t7], [%[d], #56];" \ " b 1f;" \ " .align 6;" \ " ldr %[t0], [%[s], #0];" \ " ldr %[t1], [%[s], #8];" \ " str %[t0], [%[d], #0];" \ " str %[t1], [%[d], #8];" \ " b 1f;" \ "5:" \ " ldr %[t0], [%[s], #0];" \ " ldp %[t1], %[t2], [%[s], #8];" \ " ldp %[t3], %[t4], [%[s], #24];" \ " ldp %[t5], %[t6], [%[s], #40];" \ " tbz %[d], #3, 7f;" \ "6:" \ " str %[t0], [%[d], #0];" \ " stp %[t1], %[t2], [%[d], #8];" \ " stp %[t3], %[t4], [%[d], #24];" \ " stp %[t5], %[t6], [%[d], #40];" \ " b 1f;" \ " .align 6;" \ " ldr %[t0], [%[s], #0];" \ " ldr %[t1], [%[s], #8];" \ " ldr %[t2], [%[s], #16];" \ " str %[t0], [%[d], #0];" \ " str %[t1], [%[d], #8];" \ " str %[t2], [%[d], #16];" \ " b 1f;" \ " .align 6;" \ " ldr %[t0], [%[s], #0];" \ " ldr %[t1], [%[s], #8];" \ " ldr %[t2], [%[s], #16];" \ " ldr %[t3], [%[s], #24];" \ " str %[t0], [%[d], #0];" \ " str %[t1], [%[d], #8];" \ " str %[t2], [%[d], #16];" \ " str %[t3], [%[d], #24];" \ " b 1f;" \ " .align 6;" \ " ldr %[t0], [%[s], #0];" \ " ldr %[t1], [%[s], #8];" \ " ldr %[t2], [%[s], #16];" \ " ldr %[t3], [%[s], #24];" \ " ldr %[t4], [%[s], #32];" \ " str %[t0], [%[d], #0];" \ " str %[t1], [%[d], #8];" \ " str %[t2], [%[d], #16];" \ " str %[t3], [%[d], #24];" \ " str %[t4], [%[d], #32];" \ " b 1f;" \ " .align 6;" \ " tbnz %[s], #3, 8b;" \ " ldp %[t0], %[t1], [%[s], #0];" \ " ldp %[t2], %[t3], [%[s], #16];" \ " ldp %[t4], %[t5], [%[s], #32];" \ " tbnz %[d], #3, 9b;" \ "10:" \ " stp %[t0], %[t1], [%[d], #0];" \ " stp %[t2], %[t3], [%[d], #16];" \ " stp %[t4], %[t5], [%[d], #32];" \ " b 1f;" \ " .align 6;" \ " tbnz %[s], #3, 5b;" \ " ldp %[t0], %[t1], [%[s], #0];" \ " ldp %[t2], %[t3], [%[s], #16];" \ " ldp %[t4], %[t5], [%[s], #32];" \ " ldr %[t6], [%[s], #48];" \ " tbnz %[d], #3, 6b;" \ "7:" \ " stp %[t0], %[t1], [%[d], #0];" \ " stp %[t2], %[t3], [%[d], #16];" \ " stp %[t4], %[t5], [%[d], #32];" \ " str %[t6], [%[d], #48];" \ " b 1f;" \ " .align 6;" \ " tbnz %[s], #3, 2b;" \ " ldp %[t0], %[t1], [%[s], #0];" \ " ldp %[t2], %[t3], [%[s], #16];" \ " ldp %[t4], %[t5], [%[s], #32];" \ " ldp %[t6], %[t7], [%[s], #48];" \ " tbnz %[d], #3, 3b;" \ "4:" \ " stp %[t0], %[t1], [%[d], #0];" \ " stp %[t2], %[t3], [%[d], #16];" \ " stp %[t4], %[t5], [%[d], #32];" \ " stp %[t6], %[t7], [%[d], #48];" \ "1:" \ : [s]"+r"(from), [d]"+r"(to), [cnt]"+r"(count), \ [t0]"=&r"(tmp0), [t1]"=&r"(tmp1), [t2]"=&r"(tmp2), [t3]"=&r"(tmp3), \ [t4]"=&r"(tmp4), [t5]"=&r"(tmp5), [t6]"=&r"(tmp6), [t7]"=&r"(tmp7) \ : \ : "memory", "cc"); \ } static void pd_conjoint_words(HeapWord* from, HeapWord* to, size_t count) { __asm volatile( "prfm pldl1strm, [%[s], #0];" :: [s]"r"(from) : "memory"); if (__builtin_expect(count <= 8, 1)) { COPY_SMALL(from, to, count); return; } _Copy_conjoint_words(from, to, count); } static void pd_disjoint_words(HeapWord* from, HeapWord* to, size_t count) { if (__builtin_constant_p(count)) { memcpy(to, from, count * sizeof(HeapWord)); return; } __asm volatile( "prfm pldl1strm, [%[s], #0];" :: [s]"r"(from) : "memory"); if (__builtin_expect(count <= 8, 1)) { COPY_SMALL(from, to, count); return; } _Copy_disjoint_words(from, to, count); } static void pd_disjoint_words_atomic(HeapWord* from, HeapWord* to, size_t count) { __asm volatile( "prfm pldl1strm, [%[s], #0];" :: [s]"r"(from) : "memory"); if (__builtin_expect(count <= 8, 1)) { COPY_SMALL(from, to, count); return; } _Copy_disjoint_words(from, to, count); } static void pd_aligned_conjoint_words(HeapWord* from, HeapWord* to, size_t count) { pd_conjoint_words(from, to, count); } static void pd_aligned_disjoint_words(HeapWord* from, HeapWord* to, size_t count) { pd_disjoint_words(from, to, count); } static void pd_conjoint_bytes(void* from, void* to, size_t count) { (void)memmove(to, from, count); } static void pd_conjoint_bytes_atomic(void* from, void* to, size_t count) { pd_conjoint_bytes(from, to, count); } static void pd_conjoint_jshorts_atomic(jshort* from, jshort* to, size_t count) { _Copy_conjoint_jshorts_atomic(from, to, count); } static void pd_conjoint_jints_atomic(jint* from, jint* to, size_t count) { _Copy_conjoint_jints_atomic(from, to, count); } static void pd_conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count) { _Copy_conjoint_jlongs_atomic(from, to, count); } static void pd_conjoint_oops_atomic(oop* from, oop* to, size_t count) { assert(!UseCompressedOops, "foo!"); assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); _Copy_conjoint_jlongs_atomic((jlong*)from, (jlong*)to, count); } static void pd_arrayof_conjoint_bytes(HeapWord* from, HeapWord* to, size_t count) { _Copy_arrayof_conjoint_bytes(from, to, count); } static void pd_arrayof_conjoint_jshorts(HeapWord* from, HeapWord* to, size_t count) { _Copy_arrayof_conjoint_jshorts(from, to, count); } static void pd_arrayof_conjoint_jints(HeapWord* from, HeapWord* to, size_t count) { _Copy_arrayof_conjoint_jints(from, to, count); } static void pd_arrayof_conjoint_jlongs(HeapWord* from, HeapWord* to, size_t count) { _Copy_arrayof_conjoint_jlongs(from, to, count); } static void pd_arrayof_conjoint_oops(HeapWord* from, HeapWord* to, size_t count) { assert(!UseCompressedOops, "foo!"); assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); _Copy_arrayof_conjoint_jlongs(from, to, count); } #endif // OS_CPU_LINUX_AARCH64_VM_COPY_LINUX_AARCH64_INLINE_HPP