From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755508AbeCSNGO (ORCPT ); Mon, 19 Mar 2018 09:06:14 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:60166 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755270AbeCSNGM (ORCPT ); Mon, 19 Mar 2018 09:06:12 -0400 Date: Mon, 19 Mar 2018 14:06:06 +0100 (CET) From: Thomas Gleixner To: Ivan Gorinov cc: Frank Rowand , Andy Shevchenko , Linux Kernel Mailing List , Ingo Molnar , Rob Herring , Mark Rutland Subject: Re: [PATCH v6 1/2] of: Documentation: Specify local APIC ID in "reg" In-Reply-To: Message-ID: References: User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Rob, On Tue, 13 Mar 2018, Ivan Gorinov wrote: > Use the "reg" property to specify the processor's local APIC ID. > Local APIC ID is assigned by hardware and may differ from CPU number. Any opinion on this version? Thanks, tglx > Signed-off-by: Ivan Gorinov > --- > Documentation/devicetree/bindings/x86/ce4100.txt | 37 ++++++++++++++++++------ > 1 file changed, 28 insertions(+), 9 deletions(-) > > diff --git a/Documentation/devicetree/bindings/x86/ce4100.txt b/Documentation/devicetree/bindings/x86/ce4100.txt > index b49ae59..1c41cbd 100644 > --- a/Documentation/devicetree/bindings/x86/ce4100.txt > +++ b/Documentation/devicetree/bindings/x86/ce4100.txt > @@ -7,17 +7,36 @@ Many of the "generic" devices like HPET or IO APIC have the ce4100 > name in their compatible property because they first appeared in this > SoC. > > -The CPU node > ------------- > - cpu@0 { > - device_type = "cpu"; > - compatible = "intel,ce4100"; > - reg = <0>; > - lapic = <&lapic0>; > +The CPU nodes > +------------- > + > + cpus { > + #address-cells = <1>; > + #size-cells = <0>; > + > + cpu@0x00 { > + device_type = "cpu"; > + compatible = "intel,ce4100"; > + reg = <0x00>; > + }; > + > + cpu@0x02 { > + device_type = "cpu"; > + compatible = "intel,ce4100"; > + reg = <0x02>; > + }; > }; > > -The reg property describes the CPU number. The lapic property points to > -the local APIC timer. > +A "cpu" node describes one logical processor (hardware thread). > + > +Required properties: > + > +- device_type > + Device type, must be "cpu". > + > +- reg > + Local APIC ID, the unique number assigned to each processor by > + system hardware. > > The SoC node > ------------ > -- > 2.7.4 > >