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powerpc: remove the unused function disable_kernel_fp()

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The only using of function disable_kernel_fp() was already dropped
in the commit 5daf9071 (powerpc: merge align.c).

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Kevin Hao 2013-07-14 17:02:03 +08:00 committed by Benjamin Herrenschmidt
parent e05c0e81b0
commit 6ef94ff2e8
2 changed files with 0 additions and 14 deletions
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1
arch/powerpc/include/asm/switch_to.h
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@ -18,7 +18,6 @@ extern struct task_struct *_switch(struct thread_struct *prev,
extern void giveup_fpu(struct task_struct *);
extern void load_up_fpu(void);
extern void disable_kernel_fp(void);
extern void enable_kernel_fp(void);
extern void flush_fp_to_thread(struct task_struct *);
extern void enable_kernel_altivec(void);

13
arch/powerpc/kernel/misc_64.S
View File

@ -449,19 +449,6 @@ _GLOBAL(scom970_write)
blr
#endif /* CONFIG_CPU_FREQ_PMAC64 || CONFIG_CPU_FREQ_MAPLE */
/*
* disable_kernel_fp()
* Disable the FPU.
*/
_GLOBAL(disable_kernel_fp)
mfmsr r3
rldicl r0,r3,(63-MSR_FP_LG),1
rldicl r3,r0,(MSR_FP_LG+1),0
mtmsrd r3 /* disable use of fpu now */
isync
blr
/* kexec_wait(phys_cpu)
*
* wait for the flag to change, indicating this kernel is going away but