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_ */