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 
13 #include <zephyr/arch/x86/x86_acpi.h>
14 
15 #if defined(CONFIG_X86_64)
16 
17 #include <zephyr/arch/x86/intel64/thread.h>
18 #include <zephyr/kernel_structs.h>
19 
arch_curr_cpu(void)20 static 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 
arch_proc_id(void)31 static ALWAYS_INLINE uint32_t arch_proc_id(void)
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 
arch_num_cpus(void)42 static 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_ */
50