Re: [PATCH 0/8] perf: arm: Make PMUv3 driver available for aarch32

From: Marc Zyngier
Date: Wed Feb 08 2023 - 11:41:13 EST


On Thu, 26 Jan 2023 20:44:36 +0000,
Zaid Al-Bassam <zalbassam@xxxxxxxxxx> wrote:
>
> Currently, PMUv3 driver is only available for ARMv8 aarch64
> platforms, ARMv8 running in aarch32 mode dont have access to
> the driver. This is, especially, a problem for ARMv8 platforms
> that only have aarch32 support, like the Cortex-A32.

FWIW, I've pushed out my own interpretation of this series to [1],
including the changes I suggested. The results seems to correctly work
in a 32bit guest on a 64bit host, which is what I (used to) care
about.

Feel free to pick it up.

M.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=arm/pmuv3

--
Without deviation from the norm, progress is not possible.