linux-kernel - Re: [PATCH 0/2] x86/resctrl: Fix Platform QoS issues for Hygon

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Message-ID: <4b003b8c-f021-4ae2-82c1-76b10fa2736a@intel.com>
Date: Thu, 4 Dec 2025 15:30:06 -0800
From: Reinette Chatre <reinette.chatre@...el.com>
To: Xiaochen Shen <shenxiaochen@...n-hieco.net>, <tony.luck@...el.com>,
	<bp@...en8.de>, <fenghuay@...dia.com>
CC: <babu.moger@....com>, <james.morse@....com>, <Dave.Martin@....com>,
	<x86@...nel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] x86/resctrl: Fix Platform QoS issues for Hygon

Hi Xiaochen!

On 12/3/25 6:37 PM, Xiaochen Shen wrote:
> This patch series fixes two issues regarding Platform QoS (resctrl)
> support on Hygon CPUs.
> 
> The first patch adds the missing initialization sequence required for
> proper resctrl functionality. The second patch corrects the bit-width
> configuration for the Memory Bandwidth Monitoring (MBM) counter.
> 
> Xiaochen Shen (2):
>   x86/resctrl: Add missing resctrl initialization for Hygon
>   x86/resctrl: Fix memory bandwidth counter width for Hygon
> 
>  arch/x86/kernel/cpu/resctrl/core.c     | 21 +++++++++++++++++----
>  arch/x86/kernel/cpu/resctrl/internal.h |  3 +++
>  2 files changed, 20 insertions(+), 4 deletions(-)
> 

This series looks good to me. Thank you.

One nit is that tip prefers the Cc: tag to be after the author's SoB. For details you can
refer to section "Ordering of commit tags" in Documentation/process/maintainer-tip.rst

Reviewed-by: Reinette Chatre <reinette.chatre@...el.com>

Reinette