From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932893AbXC3XGh (ORCPT ); Fri, 30 Mar 2007 19:06:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933004AbXC3XGN (ORCPT ); Fri, 30 Mar 2007 19:06:13 -0400 Received: from mga03.intel.com ([143.182.124.21]:42245 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932903AbXC3XGK (ORCPT ); Fri, 30 Mar 2007 19:06:10 -0400 X-ExtLoop1: 1 X-IronPort-AV: i="4.14,355,1170662400"; d="scan'208"; a="205856221:sNHT211476349" From: Dan Williams Subject: [PATCH 2.6.21-rc5 1/3] msi: introduce ARCH_SUPPORTS_MSI Kconfig option (rev2) To: greg@kroah.com Cc: linux@arm.linux.org.uk, linux-pci@atrey.karlin.mff.cuni.cz, ebiederm@xmission.com, linux-kernel@vger.kernel.org Date: Fri, 30 Mar 2007 16:05:50 -0700 Message-ID: <20070330230549.14060.70172.stgit@dwillia2-linux.ch.intel.com> In-Reply-To: <20070330220243.14060.14389.stgit@dwillia2-linux.ch.intel.com> References: <20070330220243.14060.14389.stgit@dwillia2-linux.ch.intel.com> User-Agent: StGIT/0.12.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Allows architectures to advertise that they support MSI rather than listing each architecture as a PCI_MSI dependency. rev2: * update i386 and x86_64 as well Signed-off-by: Dan Williams Acked-by: "Eric W. Biederman" --- arch/arm/Kconfig | 1 + arch/i386/Kconfig | 1 + arch/ia64/Kconfig | 1 + arch/sparc64/Kconfig | 1 + arch/x86_64/Kconfig | 1 + drivers/pci/Kconfig | 6 +++++- 6 files changed, 10 insertions(+), 1 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index e7baca2..db00376 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -255,6 +255,7 @@ config ARCH_IOP13XX depends on MMU select PLAT_IOP select PCI + select ARCH_SUPPORTS_MSI help Support for Intel's IOP13XX (XScale) family of processors. diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 53d6237..bcf2fc4 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -1073,6 +1073,7 @@ config PCI bool "PCI support" if !X86_VISWS depends on !X86_VOYAGER default y if X86_VISWS + select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC) help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index e19185d..3b71f97 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -14,6 +14,7 @@ config IA64 select PCI if (!IA64_HP_SIM) select ACPI if (!IA64_HP_SIM) select PM if (!IA64_HP_SIM) + select ARCH_SUPPORTS_MSI default y help The Itanium Processor Family is Intel's 64-bit successor to diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index 1a6348b..b9b2b52 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -299,6 +299,7 @@ config SUN_IO config PCI bool "PCI support" + select ARCH_SUPPORTS_MSI help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 56eb14c..e9b4f05 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -676,6 +676,7 @@ menu "Bus options (PCI etc.)" config PCI bool "PCI support" + select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC) # x86-64 doesn't support PCI BIOS access from long mode so always go direct. config PCI_DIRECT diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index 5ea5bc7..70efe8f 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -1,10 +1,14 @@ # # PCI configuration # +config ARCH_SUPPORTS_MSI + bool + default n + config PCI_MSI bool "Message Signaled Interrupts (MSI and MSI-X)" depends on PCI - depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64 || SPARC64 + depends on ARCH_SUPPORTS_MSI help This allows device drivers to enable MSI (Message Signaled Interrupts). Message Signaled Interrupts enable a device to