From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752769AbcGET1H (ORCPT ); Tue, 5 Jul 2016 15:27:07 -0400 Received: from www.linutronix.de ([62.245.132.108]:36818 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752541AbcGET1B (ORCPT ); Tue, 5 Jul 2016 15:27:01 -0400 Date: Tue, 5 Jul 2016 21:24:46 +0200 (CEST) From: Thomas Gleixner To: Marc Zyngier cc: Sebastian Frias , Jason Cooper , Mason , LKML Subject: Re: [RFC PATCH v1] irqchip: add support for SMP irq router In-Reply-To: <577BEABE.2010204@arm.com> Message-ID: References: <577542D1.4070307@laposte.net> <577A5260.3070001@free.fr> <577BA854.6090503@laposte.net> <20160705144151.GE3348@io.lakedaemon.net> <577BCFD2.8060203@laposte.net> <20160705155306.GG3348@io.lakedaemon.net> <577BE288.70200@laposte.net> <577BE4D8.2040601@arm.com> <577BE75B.4070109@laposte.net> <577BEABE.2010204@arm.com> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 5 Jul 2016, Marc Zyngier wrote: > On 05/07/16 17:59, Sebastian Frias wrote: > > Well, if you the domains should not be described in the DT and that they should > > be somehow hardcoded into the drivers' code, it should not be hard indeed. > > Hardcoded? No way. You simply implement a route allocator in your > driver, assigning them as needed. And yes, if you have more than 24 > interrupts, they get muxed. There is one caveat though. Under some circumstances (think RT) you want to configure which interrupts get muxed and which not. We really should have that option, but yes for anything which has less than 24 autorouting is the way to go. Thanks, tglx