[PATCH edk2 v2 1/1] ArmPkg/ArmGic: Fix GICR_IPRIORITYR address wrong issue

["Ming Huang" <huangming@linux.alibaba.com>]

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.
---
 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 8ef32b33a1..b4d3965acb 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