4 Commits

Author	SHA1	Message	Date
Takashi Yoshii	c20f326a62	sh: Fix up T-bit error handling in SH-4A mutex fastpath. ... This corrects a deadlock encountered on ap325 in the cases where the mutex is contended and the slow-path needs to be fallen back upon. Signed-off-by: Takashi YOSHII <yoshii.takashi@renesas.com> Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2009-01-29 11:56:03 +09:00
Paul Mundt	06be372454	sh: Fix an off-by-1 check in __mutex_fastpath_unlock(). ... Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2008-12-22 18:44:02 +09:00
Paul Mundt	77ba93a7ac	sh: Fix up the SH-4A mutex fastpath semantics. ... This fixes up the __mutex_fastpath_xxx() routines to match the semantics noted in the comment. Previously these were looping rather than doing a single-pass, which is counter-intuitive, as the slow path takes care of the looping for us in the event of contention. Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2008-12-22 18:43:52 +09:00
Michael Trimarchi	0c9122323a	sh: Add SH-4A optimized fastpath mutex implementation. ... Add fast mutex path implementation for the SH4A architecture Signed-off-by: Michael Trimarchi <trimarchimichael@yahoo.it> Signed-off-by: Paul Mundt <lethal@linux-sh.org>	2008-12-22 18:42:55 +09:00