From patchwork Fri May 27 16:27:43 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 824992 Received: from bombadil.infradead.org (173-166-109-252-newengland.hfc.comcastbusiness.net [173.166.109.252]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p4RGsa1t015173 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 27 May 2011 16:54:58 GMT Received: from canuck.infradead.org ([2001:4978:20e::1]) by bombadil.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QPzuf-00023D-SA; Fri, 27 May 2011 16:29:26 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1QPzuc-0004yJ-Pz; Fri, 27 May 2011 16:29:22 +0000 Received: from service87.mimecast.com ([94.185.240.25]) by canuck.infradead.org with smtp (Exim 4.76 #1 (Red Hat Linux)) id 1QPzsy-0004te-WC for linux-arm-kernel@lists.infradead.org; Fri, 27 May 2011 16:27:42 +0000 Received: from cam-owa2.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Fri, 27 May 2011 17:27:39 +0100 Received: from localhost.localdomain ([10.1.255.212]) by cam-owa2.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Fri, 27 May 2011 17:27:23 +0100 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org Subject: [RFC PATCH v4 05/13] ARM: versatile: use remapped PPI interrupts for local timer Date: Fri, 27 May 2011 17:27:43 +0100 Message-Id: <1306513671-12206-6-git-send-email-marc.zyngier@arm.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1306513671-12206-1-git-send-email-marc.zyngier@arm.com> References: <1306513671-12206-1-git-send-email-marc.zyngier@arm.com> X-OriginalArrivalTime: 27 May 2011 16:27:23.0155 (UTC) FILETIME=[F5304E30:01CC1C8A] X-MC-Unique: 111052717273901801 X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20110527_122741_335338_77B82FC2 X-CRM114-Status: GOOD ( 11.12 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [94.185.240.25 listed in list.dnswl.org] X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Fri, 27 May 2011 16:54:58 +0000 (UTC) Use the normal interrupt scheme for the local timers by using a remapped PPI interrupt. Tested on VExpress and PB-11MP. Signed-off-by: Marc Zyngier --- arch/arm/mach-realview/Kconfig | 2 ++ arch/arm/mach-vexpress/Kconfig | 1 + arch/arm/plat-versatile/localtimer.c | 3 ++- 3 files changed, 5 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig index b9a9805..12c7c56 100644 --- a/arch/arm/mach-realview/Kconfig +++ b/arch/arm/mach-realview/Kconfig @@ -38,6 +38,7 @@ config MACH_REALVIEW_PB11MP bool "Support RealView(R) Platform Baseboard for ARM11MPCore" select CPU_V6K select ARM_GIC + select ARM_GIC_VPPI select HAVE_PATA_PLATFORM select ARCH_HAS_BARRIERS if SMP help @@ -76,6 +77,7 @@ config MACH_REALVIEW_PBA8 config MACH_REALVIEW_PBX bool "Support RealView(R) Platform Baseboard Explore" select ARM_GIC + select ARM_GIC_VPPI select HAVE_PATA_PLATFORM select ARCH_SPARSEMEM_ENABLE if CPU_V7 && !REALVIEW_HIGH_PHYS_OFFSET select ZONE_DMA if SPARSEMEM diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig index 9311484..07a53aa 100644 --- a/arch/arm/mach-vexpress/Kconfig +++ b/arch/arm/mach-vexpress/Kconfig @@ -5,6 +5,7 @@ config ARCH_VEXPRESS_CA9X4 bool "Versatile Express Cortex-A9x4 tile" select CPU_V7 select ARM_GIC + select ARM_GIC_VPPI select ARM_ERRATA_720789 select ARM_ERRATA_751472 select ARM_ERRATA_753970 diff --git a/arch/arm/plat-versatile/localtimer.c b/arch/arm/plat-versatile/localtimer.c index 0fb3961..a76daf4 100644 --- a/arch/arm/plat-versatile/localtimer.c +++ b/arch/arm/plat-versatile/localtimer.c @@ -14,6 +14,7 @@ #include #include +#include #include /* @@ -21,7 +22,7 @@ */ int __cpuinit local_timer_setup(struct clock_event_device *evt) { - evt->irq = IRQ_LOCALTIMER; + evt->irq = gic_ppi_to_vppi(IRQ_LOCALTIMER); twd_timer_setup(evt); return 0; }