174 lines
5.4 KiB
C
174 lines
5.4 KiB
C
/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#ifndef _TOS_CPU_H_
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#define _TOS_CPU_H_
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#include "port_config.h"
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typedef struct cpu_context_st {
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cpu_data_t mepc;
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cpu_data_t mstatus;
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union { cpu_data_t x1, ra; };
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union { cpu_data_t x3, gp; };
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union { cpu_data_t x4, tp; };
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union { cpu_data_t x5, t0; };
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union { cpu_data_t x6, t1; };
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union { cpu_data_t x7, t2; };
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union { cpu_data_t x8, s0, fp; };
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union { cpu_data_t x9, s1; };
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union { cpu_data_t x10, a0; };
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union { cpu_data_t x11, a1; };
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union { cpu_data_t x12, a2; };
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union { cpu_data_t x13, a3; };
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union { cpu_data_t x14, a4; };
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union { cpu_data_t x15, a5; };
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union { cpu_data_t x16, a6; };
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union { cpu_data_t x17, a7; };
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union { cpu_data_t x18, s2; };
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union { cpu_data_t x19, s3; };
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union { cpu_data_t x20, s4; };
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union { cpu_data_t x21, s5; };
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union { cpu_data_t x22, s6; };
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union { cpu_data_t x23, s7; };
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union { cpu_data_t x24, s8; };
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union { cpu_data_t x25, s9; };
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union { cpu_data_t x26, s10; };
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union { cpu_data_t x27, s11; };
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union { cpu_data_t x28, t3; };
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union { cpu_data_t x29, t4; };
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union { cpu_data_t x30, t5; };
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union { cpu_data_t x31, t6; };
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#if ARCH_RISCV_FPU
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/* float reg table */
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union { cpu_data_t f0, ft0; };
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union { cpu_data_t f1, ft1; };
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union { cpu_data_t f2, ft2; };
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union { cpu_data_t f3, ft3; };
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union { cpu_data_t f4, ft4; };
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union { cpu_data_t f5, ft5; };
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union { cpu_data_t f6, ft6; };
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union { cpu_data_t f7, ft7; };
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union { cpu_data_t f8, fs0; };
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union { cpu_data_t f9, fs1; };
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union { cpu_data_t f10, fa0; };
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union { cpu_data_t f11, fa1; };
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union { cpu_data_t f12, fa2; };
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union { cpu_data_t f13, fa3; };
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union { cpu_data_t f14, fa4; };
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union { cpu_data_t f15, fa5; };
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union { cpu_data_t f16, fa6; };
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union { cpu_data_t f17, fa7; };
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union { cpu_data_t f18, fs2; };
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union { cpu_data_t f19, fs3; };
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union { cpu_data_t f20, fs4; };
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union { cpu_data_t f21, fs5; };
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union { cpu_data_t f22, fs6; };
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union { cpu_data_t f23, fs7; };
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union { cpu_data_t f24, fs8; };
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union { cpu_data_t f25, fs9; };
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union { cpu_data_t f26, fs10; };
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union { cpu_data_t f27, fs11; };
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union { cpu_data_t f28, ft8; };
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union { cpu_data_t f29, ft9; };
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union { cpu_data_t f30, ft10;};
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union { cpu_data_t f31, ft11;};
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#endif
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} cpu_context_t;
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__API__ uint32_t tos_cpu_clz(uint32_t val);
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__API__ void tos_cpu_int_disable(void);
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__API__ void tos_cpu_int_enable(void);
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__API__ cpu_cpsr_t tos_cpu_cpsr_save(void);
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__API__ void tos_cpu_cpsr_restore(cpu_cpsr_t cpsr);
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__KNL__ void cpu_init(void);
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__KNL__ void cpu_reset(void);
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__KNL__ void cpu_systick_init(k_cycle_t cycle_per_tick);
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__KNL__ void cpu_sched_start(void);
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__KNL__ void cpu_context_switch(void);
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__KNL__ void cpu_irq_context_switch(void);
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__KNL__ k_stack_t *cpu_task_stk_init(void *entry,
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void *arg,
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void *exit,
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k_stack_t *stk_base,
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size_t stk_size);
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#if TOS_CFG_TICKLESS_EN > 0u
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__KNL__ void cpu_systick_resume(void);
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__KNL__ void cpu_systick_suspend(void);
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__KNL__ void cpu_systick_reload_reset(void);
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__KNL__ void cpu_systick_pending_reset(void);
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__KNL__ k_time_t cpu_systick_max_delay_millisecond(void);
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__KNL__ void cpu_systick_expires_set(k_time_t millisecond);
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__KNL__ void cpu_systick_reset(void);
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#endif
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#if TOS_CFG_PWR_MGR_EN > 0u
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__KNL__ void cpu_sleep_mode_enter(void);
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__KNL__ void cpu_stop_mode_enter(void);
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__KNL__ void cpu_standby_mode_enter(void);
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#endif
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#if TOS_CFG_FAULT_BACKTRACE_EN > 0u
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#error "unsupport now"
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#endif
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/* Allocates CPU status register word. */
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#define TOS_CPU_CPSR_ALLOC() cpu_cpsr_t cpu_cpsr = (cpu_cpsr_t)0u
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/* Save CPU status word & disable interrupts.*/
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#define TOS_CPU_INT_DISABLE() \
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do { \
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cpu_cpsr = tos_cpu_cpsr_save(); \
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} while (0)
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/* Restore CPU status word. */
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#define TOS_CPU_INT_ENABLE() \
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do { \
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tos_cpu_cpsr_restore(cpu_cpsr); \
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} while (0)
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#endif /* _TOS_CPU_H_ */
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