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

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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arch/sparc/include/asm/leon.h
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@ -108,7 +108,7 @@ static inline int sparc_leon3_snooping_enabled(void)
{ {
u32 cctrl; u32 cctrl;
__asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(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) static inline void sparc_leon3_disable_cache(void)