sched: split sched.h into separate header files

include/kernel/thread.h

@@ -0,0 +1,64 @@
+#ifndef KERNEL_THREAD_H_
+#define KERNEL_THREAD_H_
+
+#include <kernel/msg.h>
+#include <kernel/object.h>
+#include <kernel/vm-controller.h>
+
+#define THREAD_KSTACK_ORDER VM_PAGE_4K
+
+enum thread_state {
+	THREAD_READY = 1,
+	THREAD_SLEEPING = 2,
+	THREAD_STOPPED = 3,
+};
+
+enum thread_flags {
+	THREAD_F_NEED_RESCHED = 0x01u,
+	THREAD_F_NO_PREEMPT = 0x02u,
+};
+
+struct thread {
+	struct object thr_base;
+
+	enum thread_state tr_state;
+	enum thread_flags tr_flags;
+	struct task *tr_parent;
+
+	unsigned int tr_id;
+	unsigned int tr_prio;
+
+	cycles_t tr_charge_period_start;
+	cycles_t tr_quantum_cycles, tr_quantum_target;
+	cycles_t tr_total_cycles;
+
+	virt_addr_t tr_ip, tr_sp, tr_bp;
+	virt_addr_t tr_cpu_user_sp, tr_cpu_kernel_sp;
+
+	struct runqueue *tr_rq;
+	struct msg tr_msg;
+	struct page_request tr_page_req;
+
+	struct queue_entry tr_parent_entry;
+	struct queue_entry tr_rqentry;
+
+	struct vm_page *tr_kstack;
+	struct vm_object *tr_ustack;
+};
+
+extern struct thread *thread_alloc(void);
+extern struct thread *thread_cast(struct object *obj);
+extern kern_status_t thread_init_kernel(struct thread *thr, virt_addr_t ip);
+extern kern_status_t thread_init_user(
+	struct thread *thr,
+	virt_addr_t ip,
+	virt_addr_t sp,
+	const uintptr_t *args,
+	size_t nr_args);
+extern int thread_priority(struct thread *thr);
+extern void thread_awaken(struct thread *thr);
+extern void idle(void);
+extern struct thread *create_kernel_thread(void (*fn)(void));
+extern struct thread *create_idle_thread(void);
+
+#endif