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_XTENSA_THREAD_H_
       8             : #define ZEPHYR_INCLUDE_ARCH_XTENSA_THREAD_H_
       9             : 
      10             : #include <stdint.h>
      11             : #ifndef _ASMLANGUAGE
      12             : 
      13             : #ifdef CONFIG_XTENSA_MPU
      14             : #include <zephyr/arch/xtensa/mpu.h>
      15             : #endif
      16             : 
      17             : /* Xtensa doesn't use these structs, but Zephyr core requires they be
      18             :  * defined so they can be included in struct _thread_base.  Dummy
      19             :  * field exists for sizeof compatibility with C++.
      20             :  */
      21             : 
      22             : struct _callee_saved {
      23             :         char dummy;
      24             : };
      25             : 
      26             : typedef struct _callee_saved _callee_saved_t;
      27             : 
      28             : struct _thread_arch {
      29             :         uint32_t last_cpu;
      30             : #ifdef CONFIG_USERSPACE
      31             : 
      32             : #ifdef CONFIG_XTENSA_MMU
      33             :         uint32_t *ptables;
      34             : #endif
      35             : 
      36             : #ifdef CONFIG_XTENSA_MPU
      37             :         /* Pointer to the memory domain's MPU map. */
      38             :         struct xtensa_mpu_map *mpu_map;
      39             : #endif
      40             : 
      41             :         /* Initial privilege mode stack pointer when doing a system call.
      42             :          * Un-set for surpervisor threads.
      43             :          */
      44             :         uint8_t *psp;
      45             : #endif
      46             : };
      47             : 
      48             : typedef struct _thread_arch _thread_arch_t;
      49             : 
      50             : #endif /* _ASMLANGUAGE */
      51             : 
      52             : #endif /* ZEPHYR_INCLUDE_ARCH_XTENSA_THREAD_H_ */