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sparc32, leon: Require separate snoop tags set to regard snooping to be enabled

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Even if data snooping is enabled, without separate snoop tags snooping will not
work when the MMU is enabled.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andreas Larsson 2013-07-01 16:16:07 +02:00 committed by David S. Miller
parent f118e9abdd
commit e8e2bfd103
1 changed files with 1 additions and 1 deletions
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2
arch/sparc/include/asm/leon.h
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@ -108,7 +108,7 @@ static inline int sparc_leon3_snooping_enabled(void)
{
u32 cctrl;
__asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl));
return (cctrl >> 23) & 1;
return ((cctrl >> 23) & 1) && ((cctrl >> 17) & 1);
};
static inline void sparc_leon3_disable_cache(void)