iommu: Move iommu Kconfig entries to submenu

For better navigation this patch moves the drivers/iommu
drivers into its own submenu in Kconfig.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index e2a5f141ae2d18088be68d37b261c1cce2b54017..b57b3fa492f3ea1f3717c2e29272c2c8ff6c11a3 100644 (file)
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -2,6 +2,17 @@
 config IOMMU_API
        bool
 
+menuconfig IOMMU_SUPPORT
+       bool "IOMMU Hardware Support"
+       default y
+       ---help---
+         Say Y here if you want to compile device drivers for IO Memory
+         Management Units into the kernel. These devices usually allow to
+         remap DMA requests and/or remap interrupts from other devices on the
+         system.
+
+if IOMMU_SUPPORT
+
 # MSM IOMMU support
 config MSM_IOMMU
        bool "MSM IOMMU Support"
@@ -95,3 +106,5 @@ config INTR_REMAP
          Supports Interrupt remapping for IO-APIC and MSI devices.
          To use x2apic mode in the CPU's which support x2APIC enhancements or
          to support platforms with CPU's having > 8 bit APIC ID, say Y.
+
+endif # IOMMU_SUPPORT