Line data    Source code

       1            0 : /*
       2              :  * Copyright (c) 2021 Intel Corporation
       3              :  *
       4              :  * SPDX-License-Identifier: Apache-2.0
       5              :  */
       6              : 
       7              : #ifndef ZEPHYR_INCLUDE_ARCH_RISCV_ARCH_INLINES_H_
       8              : #define ZEPHYR_INCLUDE_ARCH_RISCV_ARCH_INLINES_H_
       9              : 
      10              : #ifndef _ASMLANGUAGE
      11              : 
      12              : #include <zephyr/kernel_structs.h>
      13              : #include "csr.h"
      14              : 
      15            0 : static ALWAYS_INLINE uint32_t arch_proc_id(void)
      16              : {
      17              :         return csr_read(mhartid) & ((uintptr_t)CONFIG_RISCV_HART_MASK);
      18              : }
      19              : 
      20            0 : static ALWAYS_INLINE _cpu_t *arch_curr_cpu(void)
      21              : {
      22              : #if defined(CONFIG_SMP) || defined(CONFIG_USERSPACE)
      23              :         return (_cpu_t *)csr_read(mscratch);
      24              : #else
      25              :         return &_kernel.cpus[0];
      26              : #endif
      27              : }
      28              : 
      29              : #ifdef CONFIG_RISCV_CURRENT_VIA_GP
      30              : 
      31              : register struct k_thread *__arch_current_thread __asm__("gp");
      32              : 
      33              : #define arch_current_thread() __arch_current_thread
      34              : #define arch_current_thread_set(thread) ({ __arch_current_thread = (thread); })
      35              : 
      36              : #endif /* CONFIG_RISCV_CURRENT_VIA_GP */
      37              : 
      38            0 : static ALWAYS_INLINE unsigned int arch_num_cpus(void)
      39              : {
      40              :         return CONFIG_MP_MAX_NUM_CPUS;
      41              : }
      42              : 
      43              : #endif /* !_ASMLANGUAGE */
      44              : #endif /* ZEPHYR_INCLUDE_ARCH_RISCV_ARCH_INLINES_H_ */