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             : #include "reg.h"
      15             : 
      16           0 : static ALWAYS_INLINE uint32_t arch_proc_id(void)
      17             : {
      18             :         return csr_read(mhartid) & ((uintptr_t)CONFIG_RISCV_HART_MASK);
      19             : }
      20             : 
      21           0 : static ALWAYS_INLINE _cpu_t *arch_curr_cpu(void)
      22             : {
      23             : #if defined(CONFIG_SMP) || defined(CONFIG_USERSPACE)
      24             :         return (_cpu_t *)csr_read(mscratch);
      25             : #else
      26             :         return &_kernel.cpus[0];
      27             : #endif
      28             : }
      29             : 
      30             : #ifdef CONFIG_RISCV_CURRENT_VIA_GP
      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)                                                            \
      35             :         do {                                                                                       \
      36             :                 __arch_current_thread = _current_cpu->current = (thread);                          \
      37             :         } while (0)
      38             : #endif /* CONFIG_RISCV_CURRENT_VIA_GP */
      39             : 
      40           0 : static ALWAYS_INLINE unsigned int arch_num_cpus(void)
      41             : {
      42             :         return CONFIG_MP_MAX_NUM_CPUS;
      43             : }
      44             : 
      45             : #endif /* !_ASMLANGUAGE */
      46             : #endif /* ZEPHYR_INCLUDE_ARCH_RISCV_ARCH_INLINES_H_ */