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powerpc: Remove fpscr use from [kvm_]cvt_{fd,df}

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Neither lfs nor stfs touch the fpscr, so remove the restore/save of it
around them.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Andreas Schwab
2010-08-21 11:43:20 +00:00
committed by Benjamin Herrenschmidt
parent 872e439a45
commit 05d77ac90c
6 changed files with 26 additions and 48 deletions
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4
arch/powerpc/include/asm/system.h
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@@ -154,8 +154,8 @@ extern void enable_kernel_spe(void);
extern void giveup_spe(struct task_struct *);
extern void load_up_spe(struct task_struct *);
extern int fix_alignment(struct pt_regs *);
extern void cvt_fd(float *from, double *to, struct thread_struct *thread);
extern void cvt_df(double *from, float *to, struct thread_struct *thread);
extern void cvt_fd(float *from, double *to);
extern void cvt_df(double *from, float *to);
#ifndef CONFIG_SMP
extern void discard_lazy_cpu_state(void);