summaryrefslogtreecommitdiff
path: root/include/my_cpu.h
blob: a67c0e976d6172b4d00da56a12bfb179ffdb8ac7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
/* Copyright (c) 2013, MariaDB foundation Ab and SkySQL

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program 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 for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301  USA
*/

/* instructions for specific cpu's */

/*
  Macros for adjusting thread priority (hardware multi-threading)
  The defines are the same ones used by the linux kernel
*/

#if defined(__powerpc__)
/* Very low priority */
#define HMT_very_low() asm volatile("or 31,31,31")
/* Low priority */
#define HMT_low() asm volatile("or 1,1,1")
/* Medium low priority */
#define HMT_medium_low() asm volatile("or 6,6,6")
/* Medium priority */
#define HMT_medium() asm volatile("or 2,2,2")
/* Medium high priority */
#define HMT_medium_high() asm volatile("or 5,5,5")
/* High priority */
#define HMT_high() asm volatile("or 3,3,3")
#else
#define HMT_very_low()
#define HMT_low()
#define HMT_medium_low()
#define HMT_medium()
#define HMT_medium_high()
#define HMT_high()
#endif