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ARM: 7921/1: mcpm: remove redundant dsb instructions prior to sev

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sync_cache_w already includes a dsb, so we can just use sev() directly
then following a cache-sync.

Acked-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Will Deacon 2013-12-10 20:12:27 +01:00 committed by Russell King
parent 145bc292dc
commit 03aa6580e3
1 changed files with 2 additions and 2 deletions
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4
arch/arm/common/mcpm_entry.c
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@ -166,7 +166,7 @@ void __mcpm_cpu_down(unsigned int cpu, unsigned int cluster)
dmb();
mcpm_sync.clusters[cluster].cpus[cpu].cpu = CPU_DOWN;
sync_cache_w(&mcpm_sync.clusters[cluster].cpus[cpu].cpu);
dsb_sev();
sev();
}
/*
@ -182,7 +182,7 @@ void __mcpm_outbound_leave_critical(unsigned int cluster, int state)
dmb();
mcpm_sync.clusters[cluster].cluster = state;
sync_cache_w(&mcpm_sync.clusters[cluster].cluster);
dsb_sev();
sev();
}
/*