RTEMS: cpukit/include/rtems/score/percpudata.h Source File

| RTEMS 5.4-rc2

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percpudata.h
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1
9/*
10 * Copyright (c) 2018 embedded brains GmbH. All rights reserved.
11 *
12 * embedded brains GmbH
13 * Dornierstr. 4
14 * 82178 Puchheim
15 * Germany
16 * <rtems@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.org/license/LICENSE.
21 */
22
23#ifndef _RTEMS_SCORE_PERCPUDATA_H
24#define _RTEMS_SCORE_PERCPUDATA_H
25
26#include <rtems/score/percpu.h>
27#include <rtems/linkersets.h>
28
29#ifdef __cplusplus
30extern "C" {
31#endif /* __cplusplus */
32
49RTEMS_LINKER_RWSET_DECLARE( _Per_CPU_Data, char );
50
59#define PER_CPU_DATA_ITEM_DECLARE( type, item ) \
60 RTEMS_LINKER_RWSET_ITEM_DECLARE( _Per_CPU_Data, type, item )
61
68#define PER_CPU_DATA_ITEM( type, item ) \
69 RTEMS_LINKER_RWSET_ITEM( _Per_CPU_Data, type, item )
70
77#define PER_CPU_DATA_OFFSET( item ) \
78 ( (uintptr_t) &_Linker_set__Per_CPU_Data_##item \
79 - (uintptr_t) RTEMS_LINKER_SET_BEGIN( _Per_CPU_Data ) )
80
89#ifdef RTEMS_SMP
90#define PER_CPU_DATA_GET_BY_OFFSET( cpu, type, offset ) \
91 (type *) ( cpu->data + offset )
92#else
93#define PER_CPU_DATA_GET_BY_OFFSET( cpu, type, offset ) \
94 (type *) ( (uintptr_t) RTEMS_LINKER_SET_BEGIN( _Per_CPU_Data ) + offset ), \
95 (void) cpu
96#endif
97
106#ifdef RTEMS_SMP
107#define PER_CPU_DATA_GET( cpu, type, item ) \
108 PER_CPU_DATA_GET_BY_OFFSET( cpu, type, PER_CPU_DATA_OFFSET( item ) )
109#else
110#define PER_CPU_DATA_GET( cpu, type, item ) \
111 &_Linker_set__Per_CPU_Data_##item, (void) cpu
112#endif
113
116#ifdef __cplusplus
117}
118#endif /* __cplusplus */
119
120#endif /* _RTEMS_SCORE_PERCPUDATA_H */
percpu.h