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| author | Andreas Larsson <andreas@gaisler.com> | 2013-07-01 14:16:07 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-10 20:35:52 (GMT) |
| commit | e8e2bfd1033aadfee334419b7d11eeba1bc9cbed (patch) | |
| tree | 1515757e559ae1d31045b7a9961ea68b8487432b | |
| parent | f118e9abddfae94d7ef88858159d7556e1c2f7f6 (diff) | |
| download | linux-e8e2bfd1033aadfee334419b7d11eeba1bc9cbed.tar.xz | |
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>
| -rw-r--r-- | arch/sparc/include/asm/leon.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h index b836e92..c2f6ff6 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) |