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| author | Dan Williams <dan.j.williams@intel.com> | 2007-04-18 18:46:20 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-05-02 19:02:37 -0700 |
| commit | f282b97021ddc95c6092b9016f667c0963858fb1 (patch) | |
| tree | 3a9b6e1a7b1afa732eaf31fd9b8793f245e85422 | |
| parent | 314e77b3eec57001eaff82b82920150175b74e09 (diff) | |
| download | op-kernel-dev-f282b97021ddc95c6092b9016f667c0963858fb1.zip op-kernel-dev-f282b97021ddc95c6092b9016f667c0963858fb1.tar.gz | |
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.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/i386/Kconfig | 1 | ||||
| -rw-r--r-- | arch/ia64/Kconfig | 1 | ||||
| -rw-r--r-- | arch/sparc64/Kconfig | 1 | ||||
| -rw-r--r-- | arch/x86_64/Kconfig | 1 | ||||
| -rw-r--r-- | 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 590a41b..be9e10b 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -306,6 +306,7 @@ 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 |
