From 69097ceac805ad5b7fc65404e80574c22b95e36e Mon Sep 17 00:00:00 2001 From: Adrian Herrera Date: Thu, 22 Aug 2019 14:18:37 +0100 Subject: [PATCH] dev-arm: modify GICv3 ITS default addr The current default base address for GICv3 ITS stated in RealView is 0x2c120000. The redistributors base address is 0x2c010000; each instantiated core has an associated redistributor with memory region size 0x40000 (with GICv4 extension, enabled by default). With 8 cores, the redistributor range spans to 0x2c210000, creating a conflict with the ITS address space. This patch changes the ITS base address to 0x2e010000 which guarantees no overlapping with the redistributor. Change-Id: I7dc1af9e69ac037f85ae96f0985554f1fb8372a0 Reviewed-by: Giacomo Travaglini Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20608 Reviewed-by: Andreas Sandberg Maintainer: Andreas Sandberg Tested-by: kokoro --- src/dev/arm/RealView.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/dev/arm/RealView.py b/src/dev/arm/RealView.py index e6839ca7d..4a353164a 100644 --- a/src/dev/arm/RealView.py +++ b/src/dev/arm/RealView.py @@ -1098,7 +1098,7 @@ class VExpress_GEM5_V1(VExpress_GEM5_V1_Base): class VExpress_GEM5_V2_Base(VExpress_GEM5_Base): gic = Gicv3(dist_addr=0x2c000000, redist_addr=0x2c010000, maint_int=ArmPPI(num=25), - its=Gicv3Its(pio_addr=0x2c120000)) + its=Gicv3Its(pio_addr=0x2e010000)) # Limiting to 128 since it will otherwise overlap with PCI space gic.cpu_max = 128 -- 2.30.2