Re: [PATCH] drivers/perf: hisi: Add tt_core_deprecated for compatibility
From: Will Deacon
Date: Thu Sep 25 2025 - 11:40:21 EST
On Thu, 25 Sep 2025 11:31:23 +0800, Yicong Yang wrote:
> Previously tt_core is defined as config1:0-7 which may not cover all
> the CPUs sharing L3C on platforms with more than 8 CPUs in a L3C. In
> order to support such platforms extend tt_core to 16 bits, since no
> spare space in config1, tt_core was moved to config2:0-15.
>
> Though linux expects the users to retrieve the control encoding from
> sysfs first for each option, it's possible if user doesn't follow
> this and hardcoded tt_core in config1. So add an option
> tt_core_deprecated for config1:0-7 for backward compatibility.
>
> [...]
Applied to arm64 (for-next/core), thanks!
[1/1] drivers/perf: hisi: Add tt_core_deprecated for compatibility
https://git.kernel.org/arm64/c/a084c3c4a267
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev