From 836624619b98535079053920a29a7e474ac17cbc Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Fri, 28 Sep 2007 16:04:49 +0900 Subject: sh: Conditionalize gUSA support. This conditionalizes gUSA support. gUSA is not supported on SMP configurations, and it's not necessary there anyways due to having other atomicity options (ie, movli.l/movco.l). Anything implementing the LL/SC semantics (all SH-4A CPUs) can switch to userspace atomicity implementations without requiring gUSA. This is left default-enabled on all UP so that glibc doesn't break. Those that know what they are doing can disable this explicitly. Signed-off-by: Paul Mundt --- arch/sh/kernel/entry-common.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/sh/kernel/entry-common.S') diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S index b46728027195..e0317ed080c3 100644 --- a/arch/sh/kernel/entry-common.S +++ b/arch/sh/kernel/entry-common.S @@ -176,7 +176,7 @@ work_notifysig: jmp @r1 lds r0, pr work_resched: -#ifndef CONFIG_PREEMPT +#if defined(CONFIG_GUSA) && !defined(CONFIG_PREEMPT) ! gUSA handling mov.l @(OFF_SP,r15), r0 ! get user space stack pointer mov r0, r1 -- cgit v1.2.3-59-g8ed1b