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>
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
