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Commit 03aa6580 authored by Will Deacon's avatar Will Deacon Committed by Russell King
Browse files

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



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

Acked-by: default avatarDave Martin <Dave.Martin@arm.com>
Acked-by: default avatarNicolas Pitre <nico@linaro.org>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 145bc292

arch/arm/common/mcpm_entry.c

+2 −2
Original line number Diff line number Diff line
@@ -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();

}



/*