Line data    Source code

       1            1 : /*
       2              :  * Copyright (c) 2019-2020 Cobham Gaisler AB
       3              :  *
       4              :  * SPDX-License-Identifier: Apache-2.0
       5              :  */
       6              : 
       7              : /**
       8              :  * @file
       9              :  * @brief Per-arch thread definition
      10              :  *
      11              :  * This file contains definitions for
      12              :  *
      13              :  *  struct _thread_arch
      14              :  *  struct _callee_saved
      15              :  *
      16              :  * necessary to instantiate instances of struct k_thread.
      17              :  */
      18              : 
      19              : #ifndef ZEPHYR_INCLUDE_ARCH_SPARC_THREAD_H_
      20              : #define ZEPHYR_INCLUDE_ARCH_SPARC_THREAD_H_
      21              : 
      22              : #ifndef _ASMLANGUAGE
      23              : #include <zephyr/types.h>
      24              : 
      25              : /*
      26              :  * The following structure defines the list of registers that need to be
      27              :  * saved/restored when a cooperative context switch occurs.
      28              :  */
      29              : struct _callee_saved {
      30              :         /* y register used by mul/div */
      31              :         uint32_t y;
      32              : 
      33              :         /* processor status register */
      34              :         uint32_t psr;
      35              : 
      36              :         /*
      37              :          * local registers
      38              :          *
      39              :          * Using uint64_t l0_and_l1 will put everything in this structure on a
      40              :          * double word boundary which allows us to use double word loads and
      41              :          * stores safely in the context switch.
      42              :          */
      43              :         uint64_t l0_and_l1;
      44              :         uint32_t l2;
      45              :         uint32_t l3;
      46              :         uint32_t l4;
      47              :         uint32_t l5;
      48              :         uint32_t l6;
      49              :         uint32_t l7;
      50              : 
      51              :         /* input registers */
      52              :         uint32_t i0;
      53              :         uint32_t i1;
      54              :         uint32_t i2;
      55              :         uint32_t i3;
      56              :         uint32_t i4;
      57              :         uint32_t i5;
      58              :         uint32_t i6; /* frame pointer */
      59              :         uint32_t i7;
      60              : 
      61              :         /* output registers */
      62              :         uint32_t o6; /* stack pointer */
      63              :         uint32_t o7;
      64              : 
      65              : };
      66              : typedef struct _callee_saved _callee_saved_t;
      67              : 
      68              : struct _thread_arch {
      69              :         /* empty */
      70              : };
      71              : 
      72              : typedef struct _thread_arch _thread_arch_t;
      73              : 
      74              : #endif  /* _ASMLANGUAGE */
      75              : 
      76              : #endif  /* ZEPHYR_INCLUDE_ARCH_SPARC_THREAD_H_ */