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(parent: eee4c46) | patch
sh: Fix up futex implementation.
authorKaz Kojima <kkojima@rr.iij4u.or.jp>
Mon, 18 Jun 2007 04:58:32 +0000 (13:58 +0900)
committerPaul Mundt <lethal@linux-sh.org>
Mon, 18 Jun 2007 04:58:32 +0000 (13:58 +0900)
commitfc1d4c9c3761ca8db52b647c6a4ba50771900a12
tree205ec8220fac5ee77e3430bb0248426eb92effe8tree | snapshot
parenteee4c4694fb2936258244bb391e6eec07f3eea8ecommit | diff
sh: Fix up futex implementation.

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>
include/asm-sh/futex-irq.h [new file with mode: 0644] blob
include/asm-sh/futex.h diff | blob | history
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