[PATCH] perf/arm-cmn: Fix {wp_dev_sel2, wp_dev_sel} limited to 0/1 when MXP_MULTIPLE_DTM_EN is TRUE

[allen.wang]

Hi Robin:

Yes, that's exactly what I'm saying. I've tested this on actual
multi-DTM hardware, and the hardware does not ignore wp_dev_sel2
automatically — it must be correctly configured by software.

Thanks!
Allen

On 9/8/2026 11:04 PM, Robin Murphy wrote:
> https://support.arm.com/documentation/102308/0307/Debug-trace-and-PMU/
> Debug-Trace-system-overview/DTM-watchpoint?lang=en