102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
/*-------------------------------------------------------
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| bifrost_thread.h
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| Contains Bifrost threading APIs,
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|--------------------------------------------------------
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| Copyright ( C ) 2016 Microsoft Corp.
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| All Rights Reserved
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| Confidential and Proprietary
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|--------------------------------------------------------
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*/
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#pragma once
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#include "linked_list.h"
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#include "bifrost_sim.h"
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#include "avl_tree.h"
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#define STATE_NUM (5)
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typedef enum {
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NEW = 0 ,
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BLOCK = 1,
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RUN = 4,
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READY = 3,
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EXIT = 2
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} hw_thread_state_t;
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#define PRIORITY_LEVEL_NUM (5)
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typedef enum
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{
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HIGHEST = 0,
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HIGH = 1,
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MEDIUM = 2,
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LOW = 3,
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LOWEST = 4,
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} hw_thread_priority_t;
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typedef struct
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{
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UINT32 pc;
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UINT32 sp;
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UINT32 a2;
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UINT32 a3;
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UINT32 a4;
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UINT32 a5;
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UINT32 a6;
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UINT32 a7;
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UINT32 a8;
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UINT32 a9;
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UINT32 a10;
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UINT32 a11;
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UINT32 a12;
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UINT32 a13;
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UINT32 a14;
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UINT32 a15;
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UINT32 ps;
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UINT32 epc;
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} __attribute__((packed)) hw_regs_t;
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typedef struct {
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linked_list_node_t list_node;
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avl_tree_node_t tree_node;
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UINT32 thread_id;
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UINT32 core_id;
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hw_thread_priority_t priority;
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void* stack_ptr;
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UINT32 stack_size;
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hw_regs_t regs;
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void (*proc)(void*);
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void* args;
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hw_thread_state_t state;
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INT32 exit_code;
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HW_MAILBOX mailbox;
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_Bool initialized;
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} hw_tcb_t;
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int hw_thread_create(void (*proc)(void*),
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void* args,
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hw_thread_priority_t priority,
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UINT32 stack_size,
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UINT32* thread_id);
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int hw_thread_start(UINT32 thread_id);
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int hw_thread_block(UINT32 thread_id);
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int hw_thread_resume(UINT32 thread_id);
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int hw_thread_destroy(UINT32 thread_id);
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int hw_thread_get_exit_code(UINT32 thread_id, INT32 *exit_code);
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void hw_thread_exit(INT32 exit_code);
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void hw_thread_init();
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