[POWERPC] PowerPC MSI infrastructure

This provides the architecture specific hooks to support MSI on
powerpc.  We implement the newly added arch_setup_msi_irqs() and
arch_teardown_msi_irqs(), and then delegate to ppc_md routines.

Platforms that don't implement MSI will leave the ppc_md calls blank,
arch_msi_check_device() will detect this and return ENOSYS. Drivers
should detect this error and continue to use LSI.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 94c703a95013..3e779f07f21b 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -68,6 +68,7 @@ obj-$(CONFIG_MODULES)		+= $(module-y)
 pci64-$(CONFIG_PPC64)           += pci_64.o pci_dn.o
 pci32-$(CONFIG_PPC32)           := pci_32.o
 obj-$(CONFIG_PCI)               += $(pci64-y) $(pci32-y)
+obj-$(CONFIG_PCI_MSI)           += msi.o
 kexec-$(CONFIG_PPC64)           := machine_kexec_64.o
 kexec-$(CONFIG_PPC32)           := machine_kexec_32.o
 obj-$(CONFIG_KEXEC)             += machine_kexec.o crash.o $(kexec-y)