On Mon, Jun 15, 2026 at 08:32:28PM +0800, Yingchao Deng wrote:

The Qualcomm extended CTI is a heavily parameterized version of ARM’s CSCTI. It allows a debugger to send to trigger events to a processor or to send a trigger event to one or more processors when a trigger event occurs on another processor on the same SoC, or even between SoCs.

Qualcomm extended CTI supports up to 128 triggers. And some of the register offsets are changed.

The commands to configure CTI triggers are the same as ARM's CTI.

This series looks good to me and I tested:

- Confirmed no any change for standard CTI; - Perf command; - Build bisection.

Tested-by: Leo Yan leo.yan@arm.com

Mike may also want to take a look in case there is any overlap with his claim tags init patch [1]. I don't have a strong preference on which series goes in first, as the claim tag handling in this series looks clean enough to me.

@Yingchao, just a small suggestion: rc1–rc4 is usually the best window for getting patches merged. If you receive comments and are able to address them quickly, it may be worth respin patches during that period to try catching the next merge window. This is no guarantees, just thought it might be useful to share as a general tip :)

[1] https://lore.kernel.org/linux-arm-kernel/20260619160148.499223-2-mike.leach@...