linux-kernel - Re: [PATCH v2 2/4] x86/resctrl: Add sparse

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Message-ID: <e72b4ba4-762c-e3da-60f1-eee4f99c87cf@intel.com>
Date:   Thu, 28 Sep 2023 13:47:30 -0700
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Maciej Wieczor-Retman <maciej.wieczor-retman@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>
CC:     <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/4] x86/resctrl: Add sparse_masks file in info

Hi Maciej,

On 9/22/2023 1:48 AM, Maciej Wieczor-Retman wrote:
> From: Fenghua Yu <fenghua.yu@...el.com>
> 
> Add the interface in resctrl FS to show if sparse cache allocations

Should this maybe be "cache allocation"?

> bit masks are supported on the platform. Reading the file returns
> either a "1" if non-contiguous 1s are supported and "0" otherwise.
> The file path is /sys/fs/resctrl/info/{resource}/sparse_masks, where
> {resource} can be either "L2" or "L3".
> 

Reinette