Граф коммитов

4 Коммитов

Автор SHA1 Сообщение Дата
Sam Ravnborg a00736e936 sparc: copy sparc64 specific files to asm-sparc
Used the following script to copy the files:
cd include
set -e
SPARC64=`ls asm-sparc64`
for FILE in ${SPARC64}; do
	if [ -f asm-sparc/$FILE ]; then
		echo $FILE exist in asm-sparc
	else
		git mv asm-sparc64/$FILE asm-sparc/$FILE
		printf "#include <asm-sparc/$FILE>\n" > asm-sparc64/$FILE
		git add asm-sparc64/$FILE
	fi
done

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:44:53 -07:00
David S. Miller 4cfea5a7df [SPARC64]: Fix atomic backoff limit.
4096 will not fit into the immediate field of a compare instruction,
in fact it will end up being -4096 causing the check to fail every
time and thus disabling backoff.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-19 01:04:48 -07:00
David S. Miller 0aa031d9e0 [SPARC64]: Fix BACKOFF_SPIN on non-SMP.
It can't be just empty, it has to at least branch
back to 'label'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-27 00:23:22 -07:00
David S. Miller 24f287e412 [SPARC64]: Implement atomic backoff.
When the cpu count is high and contention hits an atomic object, the
processors can synchronize such that some cpus continually get knocked
out and cannot complete the atomic update.

So implement an exponential backoff when SMP.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-17 16:24:55 -07:00