thread.h

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#ifndef __PROCC__THREAD_H__
#define __PROCC__THREAD_H__
 
#include "autoconf.h"
#include <register.h>
#include <spinlock.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef uint64_t thread_id;
 
enum {
    THREAD_USER = (1 << 0),
    THREAD_KERNEL = ~(1 << 0),
    THREAD_PREEMPT_ENABLE = (1 << 1),
    THREAD_PREEMPT_DISABLE = ~(1 << 1)
};
 
enum {
    THREAD_STATE_CREATE = 0,
    THREAD_STATE_READY = 1,
    THREAD_STATE_RUNNING = 2,
    THREAD_STATE_HAL = 3,
    THREAD_STATE_TERMINATED = 3,
};
 
typedef struct thread thread_t;
struct thread {
    // --- Cache line 1 (scheduler hot path) ---
    thread_id id;        // 4B
    uint16_t core_affinity; // 2B
    uint8_t state;      // 1B
    uint8_t priority;    // 1B
    uint16_t flags;        // 2B
    uint64_t last_run_time; // 8B profiling
    uint32_t uuid;
    boolean_t has_update_run_time;
    uint8_t _pad1[64 - 29]; // align ke 64B (cache line 1 penuh)
 
    // --- Cache line 2–4 (context, jarang diakses) ---
    uintptr_t entry_addr; // 8B
    uint64_t stack;          // 8B
    cpu_register_t reg;   // 128–160B
} __attribute__((aligned(64)));
 
typedef struct {
    thread_t* thread;
    uint32_t gen;
    boolean_t used;
} thread_slot_t;
 
typedef struct thread_bucket {
    thread_slot_t slot[VOXIA_MAX_NUMBER_THREAD];
    spinlock_t lock;
    uint32_t top_free;
} thread_bucket_t;
 
#define THREAD_MAKE_ID(id, gen) ((uint64_t) (gen) << 32 | ((uint64_t) (id) + 1))
#define THREAD_GET_ID(thread_id) ((uint32_t) ((thread_id) & 0xFFFFFFFFULL) - 1)
#define THREAD_GET_GEN(thread_id) ((uint32_t) ((thread_id) >> 32))
 
thread_id vxCreateThread(const uintptr_t entry, uint16_t core_affinity,
             uint8_t priority, uint16_t flags);
void vxThreadExit();
 
#ifdef __cplusplus
}
#endif
 
#endif // __PROCC__THREAD_H__