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authorVladimir Murzin <vladimir.murzin@arm.com>2016-09-12 15:49:16 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2016-09-22 13:21:46 +0200
commitb5525ce898eb5cbbd0359d745e23a5516377fa64 (patch)
treecf5826a59a61e50aface7ebcbeb77f0540596db8 /arch/arm64/include/asm/arch_gicv3.h
parent5a7a8426b2ac004b064e4106911769e0a55e7c4b (diff)
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arm64: KVM: Move GIC accessors to arch_gicv3.h
Since we are going to share vgic-v3 save/restore code with ARM keep arch specific accessors separately. Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Acked-by: Christoffer Dall <christoffer.dall@linaro.org> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm64/include/asm/arch_gicv3.h')
-rw-r--r--arch/arm64/include/asm/arch_gicv3.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h
index 8ec88e5b290f..ae7dbd79e257 100644
--- a/arch/arm64/include/asm/arch_gicv3.h
+++ b/arch/arm64/include/asm/arch_gicv3.h
@@ -79,6 +79,19 @@
#include <linux/stringify.h>
#include <asm/barrier.h>
+#define read_gicreg(r) \
+ ({ \
+ u64 reg; \
+ asm volatile("mrs_s %0, " __stringify(r) : "=r" (reg)); \
+ reg; \
+ })
+
+#define write_gicreg(v,r) \
+ do { \
+ u64 __val = (v); \
+ asm volatile("msr_s " __stringify(r) ", %0" : : "r" (__val));\
+ } while (0)
+
/*
* Low-level accessors
*