linux-kernel - Re: [patch v2 21/38] x86/cpu: Provide cpu_init/parse

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Message-ID: <87leevkygr.ffs@tglx>
Date:   Tue, 01 Aug 2023 09:34:28 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     "Gautham R. Shenoy" <gautham.shenoy@....com>
Cc:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Tom Lendacky <thomas.lendacky@....com>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Dick Kennedy <dick.kennedy@...adcom.com>,
        James Smart <james.smart@...adcom.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>,
        linux-hwmon@...r.kernel.org, Jean Delvare <jdelvare@...e.com>,
        Huang Rui <ray.huang@....com>, Juergen Gross <jgross@...e.com>,
        Steve Wahl <steve.wahl@....com>,
        Mike Travis <mike.travis@....com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Russ Anderson <russ.anderson@....com>
Subject: Re: [patch v2 21/38] x86/cpu: Provide cpu_init/parse_topology()

On Tue, Aug 01 2023 at 12:35, Gautham R. Shenoy wrote:
> On Fri, Jul 28, 2023 at 02:13:08PM +0200, Thomas Gleixner wrote:
>> +static void topo_set_ids(struct topo_scan *tscan)
>> +{
>> +	struct cpuinfo_x86 *c = tscan->c;
>> +	u32 apicid = c->topo.apicid;
>> +
>> +	c->topo.pkg_id = topo_shift_apicid(apicid, TOPO_ROOT_DOMAIN);
>
> Shouldn't this use TOPO_PKG_DOMAIN instead of TOPO_ROOT_DOMAIN ?

Yup. It does not make a difference in that case. That's why I didn't
notice, but let me fix this for conistency sake.