From: Marc Zyngier <maz@kernel.org>
Date: Mon, 5 Oct 2020 13:32:56 +0000 (+0100)
Subject: arm64: tegra: Fix GIC400 missing GICH/GICV register regions
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=776a3c04da9fa144241476f4a0d263899d6cad26;p=linux.git

arm64: tegra: Fix GIC400 missing GICH/GICV register regions

GIC400 has full support for virtualization, and yet the tegra186
DT doesn't expose the GICH/GICV regions (despite exposing the
maintenance interrupt that only makes sense for virtualization).

Add the missing regions, based on the hunch that the HW doesn't
use the CPU build-in interfaces, but instead the external ones
provided by the GIC. KVM's virtual GIC now works with this change.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index a55d7ac95323d..98544d16d01b7 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -845,7 +845,9 @@
 		#interrupt-cells = <3>;
 		interrupt-controller;
 		reg = <0x0 0x03881000 0x0 0x1000>,
-		      <0x0 0x03882000 0x0 0x2000>;
+		      <0x0 0x03882000 0x0 0x2000>,
+		      <0x0 0x03884000 0x0 0x2000>,
+		      <0x0 0x03886000 0x0 0x2000>;
 		interrupts = <GIC_PPI 9
 			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 		interrupt-parent = <&gic>;