Re: [PATCH v13 0/3] perf: Add Raspberry Pi AXI PMU driver

From: Krzysztof Kozlowski

Date: Mon Aug 17 2026 - 02:21:19 EST


On 15/08/2026 19:27, Ian Rogers wrote:
> Motivation & Background
> ==============================
> Currently, Linux lacks a standard perf-API compatible driver for the
> Broadcom AXI performance counter blocks on Raspberry Pi platforms. Prior
> out-of-tree vendor solutions relied on custom debugfs nodes and ad-hoc
> kthreads, preventing integration with standard Linux perf tooling (`perf stat`,
> `perf list`, etc.).
>

Slow down!

One version per 24h in normal cycle, not 13 patchsets in two days! (and
even rarer during the merge window)

Best regards,
Krzysztof