github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-22 12:44:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

arm64: tegra: Add EL2 virtual timer interrupt for Tegra194

Browse Source 
Commit d87773de9e ("clocksource/drivers/arm_arch_timer: Default to EL2
virtual timer when running VHE") updated the ARM arch timer driver to
use the virtual timer by default if the CPU is running at EL2 with VHE
enabled. If the CPU is running at EL2 with VHE enabled but there is no
interrupt provided for the virtual timer, then the following warning is
displayed:

 arch_timer: [Firmware Bug]: VHE-capable CPU without EL2 virtual timer
  interrupt

This warning is observed on Tegra194 platforms. Tegra194 SoC includes
NVIDIA Carmel ARM v8.2 CPUs and support an EL2 virtual timer. Fix the
above warning by adding the PPI for the EL2 virtual timer interrupt for
Tegra194.

Fixes: 5425fb15d8 ("arm64: tegra: Add Tegra194 chip device tree")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Jon Hunter 2026-07-28 16:50:59 +01:00 committed by Thierry Reding
parent f5098b6bae
commit a7c28483fd
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm64/boot/dts/nvidia/tegra194.dtsi
View File

@ -3176,6 +3176,8 @@ timer {
<GIC_PPI 11
(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10
(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 15
(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
interrupt-parent = <&gic>;
always-on;