Commit 9781aa8a authored Jun 12, 2013 by Will Deacon

ARM: l2x0: use -st dsb option for ordering writel_relaxed with unlock



writel_relaxed and spin_unlock are both store operations, so we only
need to enforce store ordering in the dsb.

Signed-off-by: Will Deacon <will.deacon@arm.com>

parent 40a5c0b4

arch/arm/mm/cache-l2x0.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -290,7 +290,7 @@ static void l2x0_disable(void)
		raw_spin_lock_irqsave(&l2x0_lock, flags);
		__l2x0_flush_all();
		writel_relaxed(0, l2x0_base + L2X0_CTRL);
		dsb();
		dsb(st);
		raw_spin_unlock_irqrestore(&l2x0_lock, flags);
		}