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- #ifndef __ASM_SH_FPU_H
- #define __ASM_SH_FPU_H
- #define SR_FD 0x00008000
- #ifndef __ASSEMBLY__
- #include <asm/ptrace.h>
- #ifdef CONFIG_SH_FPU
- static inline void release_fpu(struct pt_regs *regs)
- {
- regs->sr |= SR_FD;
- }
- static inline void grab_fpu(struct pt_regs *regs)
- {
- regs->sr &= ~SR_FD;
- }
- struct task_struct;
- extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
- #else
- #define release_fpu(regs) do { } while (0)
- #define grab_fpu(regs) do { } while (0)
- #define save_fpu(tsk, regs) do { } while (0)
- #endif
- extern int do_fpu_inst(unsigned short, struct pt_regs *);
- #define unlazy_fpu(tsk, regs) do { \
- if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \
- save_fpu(tsk, regs); \
- } \
- } while (0)
- #define clear_fpu(tsk, regs) do { \
- if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \
- clear_tsk_thread_flag(tsk, TIF_USEDFPU); \
- release_fpu(regs); \
- } \
- } while (0)
- #endif /* __ASSEMBLY__ */
- #endif /* __ASM_SH_FPU_H */
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