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authorMarc Zyngier <marc.zyngier@arm.com>2016-02-18 19:15:45 +0000
committerMarc Zyngier <marc.zyngier@arm.com>2016-02-18 19:15:45 +0000
commit8f318526a292c5e7cebb82f3f766b83c22343293 (patch)
tree59295989b94241595716d5174f2ba1b670c8616b
parent2eca0d6ceea1f108b2d3ac81fb34698c4fd41006 (diff)
irqchip/gic-v3: Add missing barrier to 32bit version of gic_read_iar()
Commit 1a1ebd5 ("irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor") fixed the missing barrier on arm64, but forgot to update the 32bit counterpart, which has the same requirements. Let's fix it. Fixes: 1a1ebd5 ("irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor") Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
-rw-r--r--arch/arm/include/asm/arch_gicv3.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch_gicv3.h b/arch/arm/include/asm/arch_gicv3.h
index 7da5503c0591..e08d15184056 100644
--- a/arch/arm/include/asm/arch_gicv3.h
+++ b/arch/arm/include/asm/arch_gicv3.h
@@ -117,6 +117,7 @@ static inline u32 gic_read_iar(void)
u32 irqstat;
asm volatile("mrc " __stringify(ICC_IAR1) : "=r" (irqstat));
+ dsb(sy);
return irqstat;
}