From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Tue, 13 Oct 2015 11:42:19 +0100 Subject: [PATCH 2/4] arm64: dts: Foundation model: increate GICC region to allow EOImode=1 In-Reply-To: <1444729069-27922-3-git-send-email-andre.przywara@arm.com> References: <1444729069-27922-1-git-send-email-andre.przywara@arm.com> <1444729069-27922-3-git-send-email-andre.przywara@arm.com> Message-ID: <561CE00B.3070105@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Andre, s/increate/increase size of/ in the subject line On 13/10/15 10:37, Andre Przywara wrote: > Recent commits made the GIC driver use EOImode=1 for all GICs > that advertise the proper GICC region size. Well, it is not so much that the kernel uses EOImode=1, but the fact that the model has a GICv2 implementation, hence a 8kB GICC region. > To let the model benefit from the blessings of that mode, increase > the GICC region to its actual size of 8K. > > Signed-off-by: Andre Przywara > --- > arch/arm64/boot/dts/arm/foundation-v8.dts | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/arm/foundation-v8.dts b/arch/arm64/boot/dts/arm/foundation-v8.dts > index 3c5595d..57ad9fe 100644 > --- a/arch/arm64/boot/dts/arm/foundation-v8.dts > +++ b/arch/arm64/boot/dts/arm/foundation-v8.dts > @@ -78,7 +78,7 @@ > #address-cells = <2>; > interrupt-controller; > reg = <0x0 0x2c001000 0 0x1000>, > - <0x0 0x2c002000 0 0x1000>, > + <0x0 0x2c002000 0 0x2000>, > <0x0 0x2c004000 0 0x2000>, > <0x0 0x2c006000 0 0x2000>; > interrupts = <1 9 0xf04>; > Thanks, M. -- Jazz is not dead. It just smells funny... From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: Re: [PATCH 2/4] arm64: dts: Foundation model: increate GICC region to allow EOImode=1 Date: Tue, 13 Oct 2015 11:42:19 +0100 Message-ID: <561CE00B.3070105@arm.com> References: <1444729069-27922-1-git-send-email-andre.przywara@arm.com> <1444729069-27922-3-git-send-email-andre.przywara@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1444729069-27922-3-git-send-email-andre.przywara-5wv7dgnIgG8@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Andre Przywara , robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org Cc: catalin.marinas-5wv7dgnIgG8@public.gmane.org, will.deacon-5wv7dgnIgG8@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, drjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org List-Id: devicetree@vger.kernel.org Hi Andre, s/increate/increase size of/ in the subject line On 13/10/15 10:37, Andre Przywara wrote: > Recent commits made the GIC driver use EOImode=1 for all GICs > that advertise the proper GICC region size. Well, it is not so much that the kernel uses EOImode=1, but the fact that the model has a GICv2 implementation, hence a 8kB GICC region. > To let the model benefit from the blessings of that mode, increase > the GICC region to its actual size of 8K. > > Signed-off-by: Andre Przywara > --- > arch/arm64/boot/dts/arm/foundation-v8.dts | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/arm/foundation-v8.dts b/arch/arm64/boot/dts/arm/foundation-v8.dts > index 3c5595d..57ad9fe 100644 > --- a/arch/arm64/boot/dts/arm/foundation-v8.dts > +++ b/arch/arm64/boot/dts/arm/foundation-v8.dts > @@ -78,7 +78,7 @@ > #address-cells = <2>; > interrupt-controller; > reg = <0x0 0x2c001000 0 0x1000>, > - <0x0 0x2c002000 0 0x1000>, > + <0x0 0x2c002000 0 0x2000>, > <0x0 0x2c004000 0 0x2000>, > <0x0 0x2c006000 0 0x2000>; > interrupts = <1 9 0xf04>; > Thanks, M. -- Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752550AbbJMKmZ (ORCPT ); Tue, 13 Oct 2015 06:42:25 -0400 Received: from foss.arm.com ([217.140.101.70]:51806 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752046AbbJMKmX (ORCPT ); Tue, 13 Oct 2015 06:42:23 -0400 Message-ID: <561CE00B.3070105@arm.com> Date: Tue, 13 Oct 2015 11:42:19 +0100 From: Marc Zyngier Organization: ARM Ltd User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.7.0 MIME-Version: 1.0 To: Andre Przywara , robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk CC: catalin.marinas@arm.com, will.deacon@arm.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, galak@codeaurora.org, drjones@redhat.com Subject: Re: [PATCH 2/4] arm64: dts: Foundation model: increate GICC region to allow EOImode=1 References: <1444729069-27922-1-git-send-email-andre.przywara@arm.com> <1444729069-27922-3-git-send-email-andre.przywara@arm.com> In-Reply-To: <1444729069-27922-3-git-send-email-andre.przywara@arm.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andre, s/increate/increase size of/ in the subject line On 13/10/15 10:37, Andre Przywara wrote: > Recent commits made the GIC driver use EOImode=1 for all GICs > that advertise the proper GICC region size. Well, it is not so much that the kernel uses EOImode=1, but the fact that the model has a GICv2 implementation, hence a 8kB GICC region. > To let the model benefit from the blessings of that mode, increase > the GICC region to its actual size of 8K. > > Signed-off-by: Andre Przywara > --- > arch/arm64/boot/dts/arm/foundation-v8.dts | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/arm/foundation-v8.dts b/arch/arm64/boot/dts/arm/foundation-v8.dts > index 3c5595d..57ad9fe 100644 > --- a/arch/arm64/boot/dts/arm/foundation-v8.dts > +++ b/arch/arm64/boot/dts/arm/foundation-v8.dts > @@ -78,7 +78,7 @@ > #address-cells = <2>; > interrupt-controller; > reg = <0x0 0x2c001000 0 0x1000>, > - <0x0 0x2c002000 0 0x1000>, > + <0x0 0x2c002000 0 0x2000>, > <0x0 0x2c004000 0 0x2000>, > <0x0 0x2c006000 0 0x2000>; > interrupts = <1 9 0xf04>; > Thanks, M. -- Jazz is not dead. It just smells funny...