1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index bb94ce78a6d0..297a48f85446 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -360,4 +360,16 @@ config ENCLOSURE_SERVICES
           driver (SCSI/ATA) which supports enclosures
           or a SCSI enclosure device (SES) to use these services.
 
+config SGI_XP
+        tristate "Support communication between SGI SSIs"
+        depends on IA64_GENERIC || IA64_SGI_SN2
+        select IA64_UNCACHED_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
+        select GENERIC_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
+        ---help---
+          An SGI machine can be divided into multiple Single System
+          Images which act independently of each other and have
+          hardware based memory protection from the others.  Enabling
+          this feature will allow for direct communication between SSIs
+          based on a network adapter and DMA messaging.
+
 endif # MISC_DEVICES