Zephyr Project API 3.7.0
A Scalable Open Source RTOS
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arch_inlines.h
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1/*
2 * Copyright (c) 2019 Intel Corporation
3 * Copyright (c) 2019 Stephanos Ioannidis <root@stephanos.io>
4 *
5 * SPDX-License-Identifier: Apache-2.0
6 */
7
8#ifndef ZEPHYR_INCLUDE_ARCH_X86_ARCH_INLINES_H_
9#define ZEPHYR_INCLUDE_ARCH_X86_ARCH_INLINES_H_
10
11#ifndef _ASMLANGUAGE
12
14
15#if defined(CONFIG_X86_64)
16
19
20static inline struct _cpu *arch_curr_cpu(void)
21{
22 struct _cpu *cpu;
23
24 __asm__ volatile("movq %%gs:(%c1), %0"
25 : "=r" (cpu)
26 : "i" (offsetof(x86_tss64_t, cpu)));
27
28 return cpu;
29}
30
32{
33 /*
34 * Placeholder implementation to be replaced with an architecture
35 * specific call to get processor ID
36 */
37 return arch_curr_cpu()->id;
38}
39
40#endif /* CONFIG_X86_64 */
41
42static ALWAYS_INLINE unsigned int arch_num_cpus(void)
43{
44 return CONFIG_MP_MAX_NUM_CPUS;
45}
46
47#endif /* !_ASMLANGUAGE */
48
49#endif /* ZEPHYR_INCLUDE_ARCH_X86_ARCH_INLINES_H_ */
static ALWAYS_INLINE _cpu_t * arch_curr_cpu(void)
Definition arch_inlines.h:17
static ALWAYS_INLINE uint32_t arch_proc_id(void)
Definition arch_inlines.h:30
static ALWAYS_INLINE unsigned int arch_num_cpus(void)
Definition arch_inlines.h:39
#define ALWAYS_INLINE
Definition common.h:129
__UINT32_TYPE__ uint32_t
Definition stdint.h:90
Definition thread.h:55