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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
commit | 940b4d1848e8c70ab7642901a68594e8016caffc (patch) | |
tree | eb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /sal/osl/unx/asm/interlck_sparc.s | |
parent | Initial commit. (diff) | |
download | libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.tar.xz libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.zip |
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sal/osl/unx/asm/interlck_sparc.s')
-rw-r--r-- | sal/osl/unx/asm/interlck_sparc.s | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/sal/osl/unx/asm/interlck_sparc.s b/sal/osl/unx/asm/interlck_sparc.s new file mode 100644 index 000000000..7b971a50a --- /dev/null +++ b/sal/osl/unx/asm/interlck_sparc.s @@ -0,0 +1,79 @@ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +/* + * Implements osl_[increment|decrement]InterlockedCount: + * sparcv9/sparcv8plus architecture: use the "cas" instruction + * + * 32 bit mode with v8plus support or 64 bit mode: + * sparcv9 mode is implied. Assemble with -xarch=v8plus (32 bit) or + * -xarch=v9 (64 bit). + * + */ + +#if !defined(__sparcv8plus) && !defined(__sparcv9) && !defined(__sparc_v9__) + +#error LibreOffice requires SPARCv8plus or SPARCv9 CPU with "cas" instruction + +#endif + +.section ".text" + .global osl_incrementInterlockedCount + .align 8 + +! Implements osl_[increment|decrement]InterlockedCount with sparcv9(sparcv8plus) "cas" +! instruction. + +osl_incrementInterlockedCount: + +1: ld [%o0], %o1 + add %o1, 1, %o2 +! allow linux to build for v8 + .word 0xD5E21009 +! cas [%o0], %o1, %o2 + cmp %o1, %o2 + bne 1b + nop ! delay slot + retl + add %o2, 1, %o0 ! delay slot + + .type osl_incrementInterlockedCount,#function + .size osl_incrementInterlockedCount,.-osl_incrementInterlockedCount + + +.section ".text" + .global osl_decrementInterlockedCount + .align 8 + +osl_decrementInterlockedCount: + +1: ld [%o0], %o1 + sub %o1, 1, %o2 +! allow linux to build for v8 + .word 0xD5E21009 +! cas [%o0], %o1, %o2 + cmp %o1, %o2 + bne 1b + nop ! delay slot + retl + sub %o2, 1, %o0 ! delay slot + + .type osl_decrementInterlockedCount,#function + .size osl_decrementInterlockedCount,.-osl_decrementInterlockedCount + |