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Subject[PATCH AUTOSEL 4.19 51/87] arm64: tegra: Fix GIC400 missing GICH/GICV register regions
Date
From: Marc Zyngier <maz@kernel.org>

[ Upstream commit 776a3c04da9fa144241476f4a0d263899d6cad26 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/boot/dts/nvidia/tegra186.dtsi | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index b762227f6aa18..1f8db9c128bd7 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -284,7 +284,9 @@ gic: interrupt-controller@3881000 {
#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>;
--
2.27.0
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