6 #include <asm/ptrace.h>
11 static inline void release_fpu(struct pt_regs *regs)
16 static inline void grab_fpu(struct pt_regs *regs)
21 extern void save_fpu(struct task_struct *__tsk);
22 extern void restore_fpu(struct task_struct *__tsk);
23 extern void fpu_state_restore(struct pt_regs *regs);
24 extern void __fpu_state_restore(void);
26 #define save_fpu(tsk) do { } while (0)
27 #define restore_fpu(tsk) do { } while (0)
28 #define release_fpu(regs) do { } while (0)
29 #define grab_fpu(regs) do { } while (0)
30 #define fpu_state_restore(regs) do { } while (0)
31 #define __fpu_state_restore(regs) do { } while (0)
36 extern int do_fpu_inst(unsigned short, struct pt_regs *);
37 extern int init_fpu(struct task_struct *);
39 extern int fpregs_get(struct task_struct *target,
40 const struct user_regset *regset,
41 unsigned int pos, unsigned int count,
42 void *kbuf, void __user *ubuf);
44 static inline void __unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs)
46 if (task_thread_info(tsk)->status & TS_USEDFPU) {
47 task_thread_info(tsk)->status &= ~TS_USEDFPU;
51 tsk->thread.fpu_counter = 0;
54 static inline void unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs)
57 __unlazy_fpu(tsk, regs);
61 static inline void clear_fpu(struct task_struct *tsk, struct pt_regs *regs)
64 if (task_thread_info(tsk)->status & TS_USEDFPU) {
65 task_thread_info(tsk)->status &= ~TS_USEDFPU;
71 #endif /* __ASSEMBLY__ */
73 #endif /* __ASM_SH_FPU_H */