[POWERPC] QE: clean up ucc_slow.c and ucc_fast.c

[powerpc.git] / arch / x86_64 / Kconfig

diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 010d226..7982cbc 100644 (file)
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -44,6 +44,10 @@ config MMU
        bool
        default y
 
+config ZONE_DMA
+       bool
+       default y
+
 config ISA
        bool
 
@@ -96,6 +100,19 @@ config AUDIT_ARCH
        bool
        default y
 
+config GENERIC_BUG
+       bool
+       default y
+       depends on BUG
+
+config ARCH_HAS_ILOG2_U32
+       bool
+       default n
+
+config ARCH_HAS_ILOG2_U64
+       bool
+       default n
+
 source "init/Kconfig"
 
 
@@ -122,7 +139,7 @@ endchoice
 
 choice
        prompt "Processor family"
-       default MK8
+       default GENERIC_CPU
 
 config MK8
        bool "AMD-Opteron/Athlon64"
@@ -130,16 +147,31 @@ config MK8
          Optimize for AMD Opteron/Athlon64/Hammer/K8 CPUs.
 
 config MPSC
-       bool "Intel EM64T"
+       bool "Intel P4 / older Netburst based Xeon"
        help
-         Optimize for Intel Pentium 4 and Xeon CPUs with Intel
-         Extended Memory 64 Technology(EM64T). For details see
+         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 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 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 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.
 
 config GENERIC_CPU
        bool "Generic-x86-64"
        help
          Generic x86-64 CPU.
+         Run equally well on all x86-64 CPUs.
 
 endchoice
 
@@ -149,12 +181,12 @@ endchoice
 config X86_L1_CACHE_BYTES
        int
        default "128" if GENERIC_CPU || MPSC
-       default "64" if MK8
+       default "64" if MK8 || MCORE2
 
 config X86_L1_CACHE_SHIFT
        int
        default "7" if GENERIC_CPU || MPSC
-       default "6" if MK8
+       default "6" if MK8 || MCORE2
 
 config X86_INTERNODE_CACHE_BYTES
        int
@@ -344,11 +376,6 @@ config ARCH_DISCONTIGMEM_ENABLE
        depends on NUMA
        default y
 
-
-config ARCH_DISCONTIGMEM_ENABLE
-       def_bool y
-       depends on NUMA
-
 config ARCH_DISCONTIGMEM_DEFAULT
        def_bool y
        depends on NUMA
@@ -431,8 +458,8 @@ 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.
@@ -455,9 +482,26 @@ config CALGARY_IOMMU
          Normally the kernel will make the right choice by itself.
          If unsure, say Y.
 
+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
+         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 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
@@ -550,7 +594,7 @@ config SECCOMP
          If unsure, say Y. Only embedded should say N here.
 
 config CC_STACKPROTECTOR
-       bool "Enable -fstack-protector buffer overflow detection (EXPRIMENTAL)"
+       bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
        depends on EXPERIMENTAL
        help
          This option turns on the -fstack-protector GCC feature. This