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Mon, 11 Oct 2021 19:21:27 +0000 From: "Winiarska, Iwona" To: "bp@alien8.de" CC: "corbet@lwn.net" , "jae.hyun.yoo@linux.intel.com" , "d.mueller@elsoft.ch" , "linux-hwmon@vger.kernel.org" , "andrew@aj.id.au" , "Luck, Tony" , "Lutomirski, Andy" , "andriy.shevchenko@linux.intel.com" , "mchehab@kernel.org" , "jdelvare@suse.com" , "linux-kernel@vger.kernel.org" , "olof@lixom.net" , "mingo@redhat.com" , "rdunlap@infradead.org" , "devicetree@vger.kernel.org" , "tglx@linutronix.de" , "linux-aspeed@lists.ozlabs.org" , "arnd@arndb.de" , "linux-doc@vger.kernel.org" , "linux@roeck-us.net" , "zweiss@equinix.com" , "robh+dt@kernel.org" , "openbmc@lists.ozlabs.org" , "gregkh@linuxfoundation.org" , "joel@jms.id.au" , "yazen.ghannam@amd.com" , "linux-arm-kernel@lists.infradead.org" , "pierre-louis.bossart@linux.intel.com" , "x86@kernel.org" , "Williams, Dan J" Subject: Re: [PATCH v2 01/15] x86/cpu: Move intel-family to arch-independent headers Thread-Topic: [PATCH v2 01/15] x86/cpu: Move intel-family to arch-independent headers Thread-Index: AQHXiFtZAf43JMVeikGj7NGS9LF26KvDlHGAgAsFNYA= Date: Mon, 11 Oct 2021 19:21:26 +0000 Message-ID: <58ef4107e9b2c60a2605aac0d2fb6670a95bc9e0.camel@intel.com> References: <20210803113134.2262882-1-iwona.winiarska@intel.com> <20210803113134.2262882-2-iwona.winiarska@intel.com> In-Reply-To: Accept-Language: en-US, pl-PL Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Evolution 3.40.4 (3.40.4-1.fc34) authentication-results: alien8.de; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 2021-10-04 at 21:03 +0200, Borislav Petkov wrote: > On Tue, Aug 03, 2021 at 01:31:20PM +0200, Iwona Winiarska wrote: > > Baseboard management controllers (BMC) often run Linux but are usually > > implemented with non-X86 processors. They can use PECI to access package > > config space (PCS) registers on the host CPU and since some information, > > e.g. figuring out the core count, can be obtained using different > > registers on different CPU generations, they need to decode the family > > and model. > > > > Move the data from arch/x86/include/asm/intel-family.h into a new file > > include/linux/x86/intel-family.h so that it can be used by other > > architectures. > > > > Signed-off-by: Iwona Winiarska > > Reviewed-by: Tony Luck > > Reviewed-by: Dan Williams > > --- > > To limit tree-wide changes and help people that were expecting > > intel-family defines in arch/x86 to find it more easily without going > > through git history, we're not removing the original header > > completely, we're keeping it as a "stub" that includes the new one. > > If there is a consensus that the tree-wide option is better, > > we can choose this approach. > > Why can't the linux/ namespace header include the x86 one so that > nothing changes for arch/x86/? Same reason why PECI can't just include arch/x86 directly (we're building for ARM, not x86). > And if it is really only a handful of families you need, you might just > as well copy them into the peci headers and slap a comment above it > saying where they come from and save yourself all that churn... It's a handful of families for now - but I do expect the list to grow once new platforms are introduced (and with that - duplicates have to be added in both places). Since the churn is relatively low I wanted to start with trying to keep things clean first. If you're against that - sure, we can duplicate. Thanks -Iwona _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel