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Date: Fri, 30 Mar 2007 16:05:50 -0700 From: Dan Williams <dan.j.williams@...el.com> To: greg@...ah.com Cc: linux@....linux.org.uk, linux-pci@...ey.karlin.mff.cuni.cz, ebiederm@...ssion.com, linux-kernel@...r.kernel.org Subject: [PATCH 2.6.21-rc5 1/3] msi: introduce ARCH_SUPPORTS_MSI Kconfig option (rev2) 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 <dan.j.williams@...el.com> Acked-by: "Eric W. Biederman" <ebiederm@...ssion.com> --- 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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