2007-11-22 01:30:50 -07:00
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#ifndef __ASM_SH_FPU_H
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#define __ASM_SH_FPU_H
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#define SR_FD 0x00008000
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#ifndef __ASSEMBLY__
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#include <asm/ptrace.h>
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#ifdef CONFIG_SH_FPU
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static inline void release_fpu(struct pt_regs *regs)
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{
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regs->sr |= SR_FD;
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}
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static inline void grab_fpu(struct pt_regs *regs)
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{
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regs->sr &= ~SR_FD;
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}
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struct task_struct;
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extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
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#else
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#define release_fpu(regs) do { } while (0)
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#define grab_fpu(regs) do { } while (0)
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#define save_fpu(tsk, regs) do { } while (0)
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#endif
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2007-11-26 04:38:36 -07:00
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extern int do_fpu_inst(unsigned short, struct pt_regs *);
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2007-11-22 01:30:50 -07:00
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#define unlazy_fpu(tsk, regs) do { \
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if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \
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save_fpu(tsk, regs); \
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} \
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} while (0)
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#define clear_fpu(tsk, regs) do { \
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if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \
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clear_tsk_thread_flag(tsk, TIF_USEDFPU); \
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release_fpu(regs); \
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} \
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} while (0)
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_SH_FPU_H */
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