Line data    Source code

       1            0 : /*
       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              : 
      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              : 
      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              : 
      42            0 : 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_ */