thread.h

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/*
 * Copyright (c) 2019 Carlo Caione <ccaione@baylibre.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_ARCH_ARM64_THREAD_H_
#define ZEPHYR_INCLUDE_ARCH_ARM64_THREAD_H_
 
#ifndef _ASMLANGUAGE
#include <zephyr/types.h>
#include <zephyr/arch/arm64/mm.h>
 
struct _callee_saved {
        uint64_t x19;
        uint64_t x20;
        uint64_t x21;
        uint64_t x22;
        uint64_t x23;
        uint64_t x24;
        uint64_t x25;
        uint64_t x26;
        uint64_t x27;
        uint64_t x28;
        uint64_t x29;
        uint64_t sp_el0;
        uint64_t sp_elx;
        uint64_t lr;
};
 
typedef struct _callee_saved _callee_saved_t;
 
struct z_arm64_fp_context {
        __int128 q0,  q1,  q2,  q3,  q4,  q5,  q6,  q7;
        __int128 q8,  q9,  q10, q11, q12, q13, q14, q15;
        __int128 q16, q17, q18, q19, q20, q21, q22, q23;
        __int128 q24, q25, q26, q27, q28, q29, q30, q31;
        uint32_t fpsr, fpcr;
};
 
struct _thread_arch {
#if defined(CONFIG_USERSPACE) || defined(CONFIG_ARM64_STACK_PROTECTION)
#if defined(CONFIG_ARM_MMU)
        struct arm_mmu_ptables *ptables;
#endif
#if defined(CONFIG_ARM_MPU)
        struct dynamic_region_info regions[ARM64_MPU_MAX_DYNAMIC_REGIONS];
        uint8_t region_num;
        atomic_t flushing;
#endif
#endif
#ifdef CONFIG_ARM64_SAFE_EXCEPTION_STACK
        uint64_t stack_limit;
#endif
#ifdef CONFIG_FPU_SHARING
        struct z_arm64_fp_context saved_fp_context;
#endif
        uint8_t exception_depth;
};
 
typedef struct _thread_arch _thread_arch_t;
 
#endif /* _ASMLANGUAGE */
 
#endif /* ZEPHYR_INCLUDE_ARCH_ARM64_THREAD_H_ */