Line data    Source code

       1            1 : /*
       2              :  * Copyright (c) 2019 Carlo Caione <ccaione@baylibre.com>
       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_ARM64_THREAD_H_
      20              : #define ZEPHYR_INCLUDE_ARCH_ARM64_THREAD_H_
      21              : 
      22              : #ifndef _ASMLANGUAGE
      23              : #include <zephyr/types.h>
      24              : #include <zephyr/arch/arm64/mm.h>
      25              : 
      26              : struct _callee_saved {
      27              :         uint64_t x19;
      28              :         uint64_t x20;
      29              :         uint64_t x21;
      30              :         uint64_t x22;
      31              :         uint64_t x23;
      32              :         uint64_t x24;
      33              :         uint64_t x25;
      34              :         uint64_t x26;
      35              :         uint64_t x27;
      36              :         uint64_t x28;
      37              :         uint64_t x29;
      38              :         uint64_t sp_el0;
      39              :         uint64_t sp_elx;
      40              :         uint64_t lr;
      41              : };
      42              : 
      43              : typedef struct _callee_saved _callee_saved_t;
      44              : 
      45              : struct z_arm64_fp_context {
      46              :         __int128 q0,  q1,  q2,  q3,  q4,  q5,  q6,  q7;
      47              :         __int128 q8,  q9,  q10, q11, q12, q13, q14, q15;
      48              :         __int128 q16, q17, q18, q19, q20, q21, q22, q23;
      49              :         __int128 q24, q25, q26, q27, q28, q29, q30, q31;
      50              :         uint32_t fpsr, fpcr;
      51              : };
      52              : 
      53              : struct _thread_arch {
      54              : #if defined(CONFIG_USERSPACE) || defined(CONFIG_ARM64_STACK_PROTECTION)
      55              : #if defined(CONFIG_ARM_MMU)
      56              :         struct arm_mmu_ptables *ptables;
      57              : #endif
      58              : #if defined(CONFIG_ARM_MPU)
      59              :         struct dynamic_region_info regions[ARM64_MPU_MAX_DYNAMIC_REGIONS];
      60              :         uint8_t region_num;
      61              :         atomic_t flushing;
      62              : #endif
      63              : #endif
      64              : #ifdef CONFIG_ARM64_SAFE_EXCEPTION_STACK
      65              :         uint64_t stack_limit;
      66              : #endif
      67              : #ifdef CONFIG_FPU_SHARING
      68              :         struct z_arm64_fp_context saved_fp_context;
      69              : #endif
      70              :         uint8_t exception_depth;
      71              : };
      72              : 
      73              : typedef struct _thread_arch _thread_arch_t;
      74              : 
      75              : #endif /* _ASMLANGUAGE */
      76              : 
      77              : #endif /* ZEPHYR_INCLUDE_ARCH_ARM64_THREAD_H_ */