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sparc,leon: Sparc-Leon SMP support

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Support SMP for a Sparc-Leon multiprocessor system.
Add Leon specific SMP code to arch/sparc/kernel/leon_smp.c.

Signed-off-by: Konrad Eisele <konrad@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Konrad Eisele
2009-08-31 22:08:13 +00:00
committed by David S. Miller
parent b6727b12dd
commit 8401707ff6
11 changed files with 732 additions and 3 deletions
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9
arch/sparc/include/asm/smp_32.h
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@ -106,6 +106,15 @@ static inline int hard_smp4d_processor_id(void)
return cpuid;
}
extern inline int hard_smpleon_processor_id(void)
{
int cpuid;
__asm__ __volatile__("rd %%asr17,%0\n\t"
"srl %0,28,%0" :
"=&r" (cpuid) : );
return cpuid;
}
#ifndef MODULE
static inline int hard_smp_processor_id(void)
{