Merge master.kernel.org:/home/rmk/linux-2.6-arm

[powerpc.git] / arch / x86_64 / Kconfig

diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index ef66724..56eb14c 100644 (file)
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -24,6 +24,14 @@ config X86
        bool
        default y
 
+config GENERIC_TIME
+       bool
+       default y
+
+config GENERIC_TIME_VSYSCALL
+       bool
+       default y
+
 config ZONE_DMA32
        bool
        default y
@@ -44,6 +52,10 @@ config MMU
        bool
        default y
 
+config ZONE_DMA
+       bool
+       default y
+
 config ISA
        bool
 
@@ -148,18 +160,18 @@ config MPSC
          Optimize for Intel Pentium 4 and older Nocona/Dempsey Xeon CPUs
          with Intel Extended Memory 64 Technology(EM64T). For details see
          <http://www.intel.com/technology/64bitextensions/>.
-         Note the the latest Xeons (Xeon 51xx and 53xx) are not based on the
-          Netburst core and shouldn't use this option. You can distingush them
+         Note that the latest Xeons (Xeon 51xx and 53xx) are not based on the
+          Netburst core and shouldn't use this option. You can distinguish them
          using the cpu family field
-         in /proc/cpuinfo. Family 15 is a older Xeon, Family 6 a newer one
-         (this rule only applies to system that support EM64T)
+         in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one
+         (this rule only applies to systems that support EM64T)
 
 config MCORE2
        bool "Intel Core2 / newer Xeon"
        help
          Optimize for Intel Core2 and newer Xeons (51xx)
-         You can distingush the newer Xeons from the older ones using
-         the cpu family field in /proc/cpuinfo. 15 is a older Xeon
+         You can distinguish the newer Xeons from the older ones using
+         the cpu family field in /proc/cpuinfo. 15 is an older Xeon
          (use CONFIG_MPSC then), 6 is a newer one. This rule only
          applies to CPUs that support EM64T.
 
@@ -454,8 +466,8 @@ config IOMMU
          on systems with more than 3GB. This is usually needed for USB,
          sound, many IDE/SATA chipsets and some other devices.
          Provides a driver for the AMD Athlon64/Opteron/Turion/Sempron GART
-         based IOMMU and a software bounce buffer based IOMMU used on Intel
-         systems and as fallback.
+         based hardware IOMMU and a software bounce buffer based IOMMU used
+         on Intel systems and as fallback.
          The code is only active when needed (enough memory and limited
          device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
          too.
@@ -480,17 +492,24 @@ config CALGARY_IOMMU
 
 config CALGARY_IOMMU_ENABLED_BY_DEFAULT
        bool "Should Calgary be enabled by default?"
+       default y
        depends on CALGARY_IOMMU
        help
-         Should Calgary be enabled by default? If you choose 'y', Calgary
+         Should Calgary be enabled by default? if you choose 'y', Calgary
          will be used (if it exists). If you choose 'n', Calgary will not be
          used even if it exists. If you choose 'n' and would like to use
          Calgary anyway, pass 'iommu=calgary' on the kernel command line.
-         If unsure, say N.
+         If unsure, say Y.
 
 # need this always selected by IOMMU for the VIA workaround
 config SWIOTLB
        bool
+       help
+         Support for software bounce buffers used on x86-64 systems
+         which don't have a hardware IOMMU (e.g. the current generation
+         of Intel's x86-64 CPUs). Using this PCI devices which can only
+         access 32-bits of memory can be used on systems with more than
+         3 GB of memory. If unsure, say Y.
 
 config X86_MCE
        bool "Machine check support" if EMBEDDED