Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755248AbbBTTs4 (ORCPT ); Fri, 20 Feb 2015 14:48:56 -0500 Received: from metis.ext.pengutronix.de ([92.198.50.35]:58670 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754931AbbBTTsy (ORCPT ); Fri, 20 Feb 2015 14:48:54 -0500 Date: Fri, 20 Feb 2015 20:47:56 +0100 From: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= To: Maxime Coquelin Cc: afaerber@suse.de, geert@linux-m68k.org, Rob Herring , Philipp Zabel , Jonathan Corbet , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Russell King , Daniel Lezcano , Thomas Gleixner , Linus Walleij , Greg Kroah-Hartman , Jiri Slaby , Arnd Bergmann , Andrew Morton , "David S. Miller" , Mauro Carvalho Chehab , Joe Perches , Antti Palosaari , Tejun Heo , Will Deacon , Nikolay Borisov , Rusty Russell , Kees Cook , Michal Marek , linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-serial@vger.kernel.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org Subject: Re: [PATCH v2 02/18] ARM: ARMv7M: Enlarge vector table to 256 entries Message-ID: <20150220194756.GS19388@pengutronix.de> References: <1424455277-29983-1-git-send-email-mcoquelin.stm32@gmail.com> <1424455277-29983-3-git-send-email-mcoquelin.stm32@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1424455277-29983-3-git-send-email-mcoquelin.stm32@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::c0 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1622 Lines: 49 On Fri, Feb 20, 2015 at 07:01:01PM +0100, Maxime Coquelin wrote: > From Cortex-M reference manuals, the nvic supports up to 240 interrupts. > So the number of entries in vectors table is up to 256. > > This patch adds a new config flag to specify the number of external interrupts. > Some ifdeferies are added in order to respect the natural alignment without > wasting too much space on smaller systems. > > Signed-off-by: Maxime Coquelin > --- > arch/arm/kernel/entry-v7m.S | 13 +++++++++---- > arch/arm/mm/Kconfig | 15 +++++++++++++++ > 2 files changed, 24 insertions(+), 4 deletions(-) > > diff --git a/arch/arm/kernel/entry-v7m.S b/arch/arm/kernel/entry-v7m.S > index 8944f49..68cde36 100644 > --- a/arch/arm/kernel/entry-v7m.S > +++ b/arch/arm/kernel/entry-v7m.S > @@ -117,9 +117,14 @@ ENTRY(__switch_to) > ENDPROC(__switch_to) > > .data > - .align 8 > +#if CONFIG_CPUV7M_NUM_IRQ <= 112 I would have called this CONFIG_CPU_V7M_NUM_IRQ to match the already existing CPU_V7M symbol. > + .align 9 > +#else > + .align 10 > +#endif > + Other than that: Acked-by: Uwe Kleine-K?nig Who do you target to apply this series? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-K?nig | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/