s390/pci: add PCI Kconfig options

CONFIG_PCI is disabled by default currently.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 50 insertions, 6 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 1bf4b294c6e9..f39a6f54c353 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -34,12 +34,6 @@ config GENERIC_BUG
 config GENERIC_BUG_RELATIVE_POINTERS
         def_bool y
 
-config NO_IOMEM
-        def_bool y
-
-config NO_DMA
-        def_bool y
-
 config ARCH_DMA_ADDR_T_64BIT
         def_bool 64BIT
 
@@ -58,6 +52,12 @@ config KEXEC
 config AUDIT_ARCH
         def_bool y
 
+config NO_IOPORT
+        def_bool y
+
+config PCI_QUIRKS
+        def_bool n
+
 config S390
         def_bool y
         select USE_GENERIC_SMP_HELPERS if SMP
@@ -435,6 +435,50 @@ config QDIO
 
           If unsure, say Y.
 
+menuconfig PCI
+        bool "PCI support"
+        default n
+        depends on 64BIT
+        select ARCH_SUPPORTS_MSI
+        select PCI_MSI
+        help
+          Enable PCI support.
+
+if PCI
+
+config PCI_NR_FUNCTIONS
+        int "Maximum number of PCI functions (1-4096)"
+        range 1 4096
+        default "64"
+        help
+          This allows you to specify the maximum number of PCI functions which
+          this kernel will support.
+
+source "drivers/pci/Kconfig"
+source "drivers/pci/pcie/Kconfig"
+source "drivers/pci/hotplug/Kconfig"
+
+endif   # PCI
+
+config PCI_DOMAINS
+        def_bool PCI
+
+config HAS_IOMEM
+        def_bool PCI
+
+config IOMMU_HELPER
+        def_bool PCI
+
+config HAS_DMA
+        def_bool PCI
+        select HAVE_DMA_API_DEBUG
+
+config NEED_SG_DMA_LENGTH
+        def_bool PCI
+
+config HAVE_DMA_ATTRS
+        def_bool PCI
+
 config CHSC_SCH
         def_tristate m
         prompt "Support for CHSC subchannels"