Linux kernel stable tree https://git.rulkc.org/pub/scm/linux/kernel/git/stable/linux.git/atom?h=master 2008-07-28T23:09:44+00:00 2008-07-28T23:09:44+00:00 Paul Mundt lethal@linux-sh.org 2008-07-28T23:09:44+00:00 urn:sha1:f15cbe6f1a4b4d9df59142fc8e4abb973302cf44 This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org> 2007-06-18T04:58:32+00:00 Kaz Kojima kkojima@rr.iij4u.or.jp 2007-06-18T04:58:32+00:00 urn:sha1:fc1d4c9c3761ca8db52b647c6a4ba50771900a12 SH is able to support a complete futex implementation on UP by way of gUSA. However, IRQ toggling must be done for the old CPUs that don't have movli.l/movco.l (LL/SC) instructions. Provide a default implementation that does this, so it's possible to optimize for newer CPUs. Follows the same scheme as the current asm-sh/atomic-*.h headers. Signed-off-by: Kaz Kojima <kkojima@rr.iij4u.or.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>