The register address of GICR_IPRIORITYR is in SGI_base frame. Add
IPRIORITY_ADDRESS macro for getting GICR_IPRIORITYR address. Otherwise
GIC RAS error(Uncorrected software error) may report in ArmGicDxe.

Signed-off-by: Ming Huang <huangming@linux.alibaba.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
---
 ArmPkg/Drivers/ArmGic/ArmGicLib.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ArmPkg/Drivers/ArmGic/ArmGicLib.c b/ArmPkg/Drivers/ArmGic/ArmGicLib.c
index 5d04ed3dac..6b01c88206 100644
--- a/ArmPkg/Drivers/ArmGic/ArmGicLib.c
+++ b/ArmPkg/Drivers/ArmGic/ArmGicLib.c
@@ -30,6 +30,9 @@
 #define ICENABLER_ADDRESS(base,offset) ((base) + \
           ARM_GICR_CTLR_FRAME_SIZE + ARM_GICR_ICENABLER + 4 * (offset))
 
+#define IPRIORITY_ADDRESS(base,offset) ((base) + \
+          ARM_GICR_CTLR_FRAME_SIZE + ARM_GIC_ICDIPR + 4 * (offset))
+
 /**
  *
  * Return whether the Source interrupt index refers to a shared interrupt (SPI)
@@ -236,7 +239,7 @@ ArmGicSetInterruptPriority (
     }
 
     MmioAndThenOr32 (
-      GicCpuRedistributorBase + ARM_GIC_ICDIPR + (4 * RegOffset),
+      IPRIORITY_ADDRESS (GicCpuRedistributorBase, RegOffset),
       ~(0xff << RegShift),
       Priority << RegShift
       );
-- 
2.17.1



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