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| author | Andreas Larsson <andreas@gaisler.com> | 2013-07-01 16:16:07 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-10 13:35:52 -0700 |
| commit | e8e2bfd1033aadfee334419b7d11eeba1bc9cbed (patch) | |
| tree | 1515757e559ae1d31045b7a9961ea68b8487432b /arch/sparc | |
| parent | f118e9abddfae94d7ef88858159d7556e1c2f7f6 (diff) | |
| download | linux-e8e2bfd1033aadfee334419b7d11eeba1bc9cbed.tar.bz2 | |
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/sparc')
| -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 b836e9297f2a..c2f6ff6d7a35 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) |