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Commit 72cd7b44 authored by Leonidas Da Silva Barbosa's avatar Leonidas Da Silva Barbosa Committed by Herbert Xu
Browse files

powerpc: Uncomment and make enable_kernel_vsx() routine available 



enable_kernel_vsx() function was commented since anything was using
it. However, vmx-crypto driver uses VSX instructions which are
only available if VSX is enable. Otherwise it rises an exception oops.

This patch uncomment enable_kernel_vsx() routine and makes it available.

Signed-off-by: default avatarLeonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 1f644a7c

arch/powerpc/include/asm/switch_to.h

+1 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ static inline void save_early_sprs(struct thread_struct *prev) {} 


extern void enable_kernel_fp(void);

extern void enable_kernel_altivec(void);

extern void enable_kernel_vsx(void);

extern int emulate_altivec(struct pt_regs *);

extern void __giveup_vsx(struct task_struct *);

extern void giveup_vsx(struct task_struct *);

arch/powerpc/kernel/process.c

+0 −3
Original line number Diff line number Diff line
@@ -204,8 +204,6 @@ EXPORT_SYMBOL_GPL(flush_altivec_to_thread); 
#endif /* CONFIG_ALTIVEC */



#ifdef CONFIG_VSX

#if 0

/* not currently used, but some crazy RAID module might want to later */

void enable_kernel_vsx(void)

{

	WARN_ON(preemptible());
@@ -220,7 +218,6 @@ void enable_kernel_vsx(void) 
#endif /* CONFIG_SMP */

}

EXPORT_SYMBOL(enable_kernel_vsx);

#endif



void giveup_vsx(struct task_struct *tsk)

{