Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86...

[linux-2.6-omap-h63xx.git] / arch / x86 / Kconfig

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f4ed47db79ee9f5f8c206c4758770fc9127df9fd..1cbec0269d394163a9245c021b282e454db3531c 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -19,6 +19,8 @@ config X86_64
 config X86
        def_bool y
        select HAVE_AOUT if X86_32
+       select HAVE_READQ
+       select HAVE_WRITEQ
        select HAVE_UNSTABLE_SCHED_CLOCK
        select HAVE_IDE
        select HAVE_OPROFILE
@@ -28,7 +30,7 @@ config X86
        select HAVE_KRETPROBES
        select HAVE_FTRACE_MCOUNT_RECORD
        select HAVE_DYNAMIC_FTRACE
-       select HAVE_FTRACE
+       select HAVE_FUNCTION_TRACER
        select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
        select HAVE_ARCH_KGDB if !X86_VOYAGER
        select HAVE_ARCH_TRACEHOOK
@@ -87,6 +89,10 @@ config GENERIC_IOMAP
 config GENERIC_BUG
        def_bool y
        depends on BUG
+       select GENERIC_BUG_RELATIVE_POINTERS if X86_64
+
+config GENERIC_BUG_RELATIVE_POINTERS
+       bool
 
 config GENERIC_HWEIGHT
        def_bool y
@@ -167,9 +173,12 @@ config GENERIC_PENDING_IRQ
 config X86_SMP
        bool
        depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64)
-       select USE_GENERIC_SMP_HELPERS
        default y
 
+config USE_GENERIC_SMP_HELPERS
+       def_bool y
+       depends on SMP
+
 config X86_32_SMP
        def_bool y
        depends on X86_32 && SMP
@@ -231,25 +240,21 @@ config SMP
 
          If you don't know what to do here, say N.
 
+config X86_HAS_BOOT_CPU_ID
+       def_bool y
+       depends on X86_VOYAGER
+
 config X86_FIND_SMP_CONFIG
        def_bool y
        depends on X86_MPPARSE || X86_VOYAGER
 
-if ACPI
 config X86_MPPARSE
-       def_bool y
-       bool "Enable MPS table"
+       bool "Enable MPS table" if ACPI
+       default y
        depends on X86_LOCAL_APIC
        help
          For old smp systems that do not have proper acpi support. Newer systems
          (esp with 64bit cpus) with acpi support, MADT and DSDT will override it
-endif
-
-if !ACPI
-config X86_MPPARSE
-       def_bool y
-       depends on X86_LOCAL_APIC
-endif
 
 choice
        prompt "Subarchitecture Type"
@@ -458,10 +463,6 @@ config X86_CYCLONE_TIMER
        def_bool y
        depends on X86_GENERICARCH
 
-config ES7000_CLUSTERED_APIC
-       def_bool y
-       depends on SMP && X86_ES7000 && MPENTIUMIII
-
 source "arch/x86/Kconfig.cpu"
 
 config HPET_TIMER
@@ -973,24 +974,37 @@ config X86_PAE
 config ARCH_PHYS_ADDR_T_64BIT
        def_bool X86_64 || X86_PAE
 
+config DIRECT_GBPAGES
+       bool "Enable 1GB pages for kernel pagetables" if EMBEDDED
+       default y
+       depends on X86_64
+       help
+         Allow the kernel linear mapping to use 1GB pages on CPUs that
+         support it. This can improve the kernel's performance a tiny bit by
+         reducing TLB pressure. If in doubt, say "Y".
+
 # Common NUMA Features
 config NUMA
-       bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
+       bool "Numa Memory Allocation and Scheduler Support"
        depends on SMP
        depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
        default n if X86_PC
        default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
        help
          Enable NUMA (Non Uniform Memory Access) support.
+
          The kernel will try to allocate memory used by a CPU on the
          local memory controller of the CPU and add some more
          NUMA awareness to the kernel.
 
-         For 32-bit this is currently highly experimental and should be only
-         used for kernel development. It might also cause boot failures.
-         For 64-bit this is recommended on all multiprocessor Opteron systems.
-         If the system is EM64T, you should say N unless your system is
-         EM64T NUMA.
+         For 64-bit this is recommended if the system is Intel Core i7
+         (or later), AMD Opteron, or EM64T NUMA.
+
+         For 32-bit this is only needed on (rare) 32-bit-only platforms
+         that support NUMA topologies, such as NUMAQ / Summit, or if you
+         boot a 32-bit kernel on a 64-bit NUMA platform.
+
+         Otherwise, you should say N.
 
 comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
        depends on X86_32 && X86_SUMMIT && (!HIGHMEM64G || !ACPI)
@@ -1510,11 +1524,15 @@ config ARCH_ENABLE_MEMORY_HOTPLUG
        def_bool y
        depends on X86_64 || (X86_32 && HIGHMEM)
 
+config ARCH_ENABLE_MEMORY_HOTREMOVE
+       def_bool y
+       depends on MEMORY_HOTPLUG
+
 config HAVE_ARCH_EARLY_PFN_TO_NID
        def_bool X86_64
        depends on NUMA
 
-menu "Power management options"
+menu "Power management and ACPI options"
        depends on !X86_VOYAGER
 
 config ARCH_HIBERNATION_HEADER
@@ -1649,13 +1667,6 @@ config APM_ALLOW_INTS
          many of the newer IBM Thinkpads.  If you experience hangs when you
          suspend, try setting this to Y.  Otherwise, say N.
 
-config APM_REAL_MODE_POWER_OFF
-       bool "Use real mode APM BIOS call to power off"
-       help
-         Use real mode APM BIOS calls to switch off the computer. This is
-         a work-around for a number of buggy BIOSes. Switch this option on if
-         your computer crashes instead of powering off properly.
-
 endif # APM
 
 source "arch/x86/kernel/cpu/cpufreq/Kconfig"
@@ -1914,6 +1925,10 @@ config SYSVIPC_COMPAT
 endmenu
 
 
+config HAVE_ATOMIC_IOMAP
+       def_bool y
+       depends on X86_32
+
 source "net/Kconfig"
 
 source "drivers/Kconfig"