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https://github.com/MariaDB/server.git
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5569132ffe
Part of this work is based on Stewart Smitch's memory barrier and lower priori patches for power8. - Added memory syncronization for innodb & xtradb for power8. - Added HAVE_WINDOWS_MM_FENCE to CMakeList.txt - Added os_isync to fix a syncronization problem on power - Added log_get_lsn_nowait which is now used srv_error_monitor_thread to ensur if log mutex is locked. All changes done both for InnoDB and Xtradb
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* Copyright (c) 2013, MariaDB foundation Ab and SkySQL
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1307 USA
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*/
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/* instructions for specific cpu's */
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/*
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Macros for adjusting thread priority (hardware multi-threading)
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The defines are the same ones used by the linux kernel
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*/
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#if defined(__powerpc__)
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/* Very low priority */
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#define HMT_very_low() asm volatile("or 31,31,31")
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/* Low priority */
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#define HMT_low() asm volatile("or 1,1,1")
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/* Medium low priority */
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#define HMT_medium_low() asm volatile("or 6,6,6")
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/* Medium priority */
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#define HMT_medium() asm volatile("or 2,2,2")
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/* Medium high priority */
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#define HMT_medium_high() asm volatile("or 5,5,5")
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/* High priority */
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#define HMT_high() asm volatile("or 3,3,3")
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#else
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#define HMT_very_low()
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#define HMT_low()
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#define HMT_medium_low()
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#define HMT_medium()
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#define HMT_medium_high()
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#define HMT_high()
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#endif
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