RTEMS: cpukit/score/cpu/sparc/include/rtems/score/sparcimpl.h Source File

| RTEMS 5.4-rc2

Loading...
Searching...
No Matches
sparcimpl.h
1/*
2 * Copyright (c) 2016, 2018 embedded brains GmbH. All rights reserved.
3 *
4 * embedded brains GmbH
5 * Dornierstr. 4
6 * 82178 Puchheim
7 * Germany
8 * <rtems@embedded-brains.de>
9 *
10 * The license and distribution terms for this file may be
11 * found in the file LICENSE in this distribution or at
12 * http://www.rtems.org/license/LICENSE.
13 */
14
15#ifndef _RTEMS_SCORE_SPARCIMPL_H
16#define _RTEMS_SCORE_SPARCIMPL_H
17
18#include <rtems/score/cpu.h>
19
20#ifdef __cplusplus
21extern "C" {
22#endif /* __cplusplus */
23
24struct timecounter;
25
26/*
27 * Provides a mutable alias to _SPARC_Counter for use in
28 * _SPARC_Counter_initialize(). The _SPARC_Counter and _SPARC_Counter_mutable
29 * are defined via the SPARC_COUNTER_DEFINITION define.
30 */
31extern SPARC_Counter _SPARC_Counter_mutable;
32
33void _SPARC_Counter_at_tick_clock( void );
34
35CPU_Counter_ticks _SPARC_Counter_read_default( void );
36
37CPU_Counter_ticks _SPARC_Counter_read_up( void );
38
39CPU_Counter_ticks _SPARC_Counter_read_down( void );
40
41CPU_Counter_ticks _SPARC_Counter_read_clock_isr_disabled( void );
42
43CPU_Counter_ticks _SPARC_Counter_read_clock( void );
44
45CPU_Counter_ticks _SPARC_Counter_read_asr23( void );
46
47uint32_t _SPARC_Get_timecount_up( struct timecounter * );
48
49uint32_t _SPARC_Get_timecount_down( struct timecounter * );
50
51uint32_t _SPARC_Get_timecount_clock( struct timecounter * );
52
53uint32_t _SPARC_Get_timecount_asr23( struct timecounter * );
54
55/*
56 * Defines the _SPARC_Counter and _SPARC_Counter_mutable global variables.
57 * Place this define in the global file scope of the CPU counter support file
58 * of the BSP.
59 */
60#define SPARC_COUNTER_DEFINITION \
61 __asm__ ( \
62 "\t.global\t_SPARC_Counter\n" \
63 "\t.global\t_SPARC_Counter_mutable\n" \
64 "\t.section\t.data._SPARC_Counter,\"aw\",@progbits\n" \
65 "\t.align\t4\n" \
66 "\t.type\t_SPARC_Counter, #object\n" \
67 "\t.size\t_SPARC_Counter, 28\n" \
68 "_SPARC_Counter:\n" \
69 "_SPARC_Counter_mutable:\n" \
70 "\t.long\t_SPARC_Counter_read_default\n" \
71 "\t.long\t_SPARC_Counter_read_default\n" \
72 "\t.long\t0\n" \
73 "\t.long\t0\n" \
74 "\t.long\t0\n" \
75 "\t.long\t0\n" \
76 "\t.long\t0\n" \
77 "\t.previous\n" \
78 )
79
80#ifdef __cplusplus
81}
82#endif /* __cplusplus */
83
84#endif /* _RTEMS_SCORE_SPARCIMPL_H */
SPARC_Counter
Definition: cpu.h:1113
timecounter
Definition: timetc.h:46