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powerpc: Remove empty giveup_altivec function on book3e CPUs 

Use an empty inline instead of an empty function to implement
giveup_altivec on book3e CPUs, similar to flush_altivec_to_thread.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2012-04-15 20:54:59 +00:00 committed by Benjamin Herrenschmidt
parent 59c19cb2f6
commit 8cd3c23df7
3 changed files with 4 additions and 17 deletions
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5
arch/powerpc/include/asm/switch_to.h
View File

@ -21,7 +21,6 @@ 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);
extern void giveup_altivec(struct task_struct *);
extern void load_up_altivec(struct task_struct *);
extern int emulate_altivec(struct pt_regs *);
extern void __giveup_vsx(struct task_struct *);
@ -40,10 +39,14 @@ static inline void discard_lazy_cpu_state(void)
#ifdef CONFIG_ALTIVEC
extern void flush_altivec_to_thread(struct task_struct *);
extern void giveup_altivec(struct task_struct *);
#else
static inline void flush_altivec_to_thread(struct task_struct *t)
{
}
static inline void giveup_altivec(struct task_struct *t)
{
}
#endif
#ifdef CONFIG_VSX

8
arch/powerpc/kernel/head_44x.S
View File

@ -777,14 +777,6 @@ _GLOBAL(__fixup_440A_mcheck)
sync
blr
/*
* extern void giveup_altivec(struct task_struct *prev)
*
* The 44x core does not have an AltiVec unit.
*/
_GLOBAL(giveup_altivec)
blr
/*
* extern void giveup_fpu(struct task_struct *prev)
*

8
arch/powerpc/kernel/head_fsl_booke.S
View File

@ -874,14 +874,6 @@ _GLOBAL(__setup_e500mc_ivors)
sync
blr
/*
* extern void giveup_altivec(struct task_struct *prev)
*
* The e500 core does not have an AltiVec unit.
*/
_GLOBAL(giveup_altivec)
blr
#ifdef CONFIG_SPE
/*
* extern void giveup_spe(struct task_struct *prev)