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

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

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>

authored by

Andreas Larsson and committed by

David S. Miller 12 years ago e8e2bfd1 f118e9ab

+1 -1

1 changed file

expand all

arch

sparc

include

asm

leon.h

+1 -1

arch/sparc/include/asm/leon.h

··· 108 108 { 109 109 u32 cctrl; 110 110 __asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl)); 111 - return (cctrl >> 23) & 1; 111 + return ((cctrl >> 23) & 1) && ((cctrl >> 17) & 1); 112 112 }; 113 113 114 114 static inline void sparc_leon3_disable_cache(void)