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authorAndreas Larsson <andreas@gaisler.com>2013-07-01 16:16:07 +0200
committerDavid S. Miller <davem@davemloft.net>2013-07-10 13:35:52 -0700
commite8e2bfd1033aadfee334419b7d11eeba1bc9cbed (patch)
tree1515757e559ae1d31045b7a9961ea68b8487432b /arch
parentf118e9abddfae94d7ef88858159d7556e1c2f7f6 (diff)
downloadlinux-e8e2bfd1033aadfee334419b7d11eeba1bc9cbed.tar.gz
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/include/asm/leon.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index b836e9297f2..c2f6ff6d7a3 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -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)