1 files changed, 104 insertions, 37 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ac22bb7719f7..862adb9bf0d4 100644
--- 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
@@ -29,11 +31,14 @@ config X86
         select HAVE_FTRACE_MCOUNT_RECORD
         select HAVE_DYNAMIC_FTRACE
         select HAVE_FUNCTION_TRACER
+        select HAVE_FUNCTION_GRAPH_TRACER
+        select HAVE_FUNCTION_TRACE_MCOUNT_TEST
         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
         select HAVE_GENERIC_DMA_COHERENT if X86_32
         select HAVE_EFFICIENT_UNALIGNED_ACCESS
+        select USER_STACKTRACE_SUPPORT
 
 config ARCH_DEFCONFIG
         string
@@ -87,6 +92,10 @@ 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
@@ -238,25 +247,39 @@ config X86_HAS_BOOT_CPU_ID
         def_bool y
         depends on X86_VOYAGER
 
+config SPARSE_IRQ
+        bool "Support sparse irq numbering"
+        depends on PCI_MSI || HT_IRQ
+        help
+          This enables support for sparse irqs. This is useful for distro
+          kernels that want to define a high CONFIG_NR_CPUS value but still
+          want to have low kernel memory footprint on smaller machines.
+
+          ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread
+            out the irq_desc[] array in a more NUMA-friendly way. )
+
+          If you don't know what to do here, say N.
+
+config NUMA_MIGRATE_IRQ_DESC
+        bool "Move irq desc when changing irq smp_affinity"
+        depends on SPARSE_IRQ && NUMA
+        default n
+        help
+          This enables moving irq_desc to cpu/node that irq will use handled.
+
+          If you don't know what to do here, say N.
+
 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"
@@ -367,10 +390,10 @@ config X86_RDC321X
           as R-8610-(G).
           If you don't have one of these chips, you should say N here.
 
-config SCHED_NO_NO_OMIT_FRAME_POINTER
+config SCHED_OMIT_FRAME_POINTER
         def_bool y
         prompt "Single-depth WCHAN output"
-        depends on X86_32
+        depends on X86
         help
           Calculate simpler /proc/<PID>/wchan values. If this option
           is disabled then wchan values will recurse back to the
@@ -465,10 +488,6 @@ 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
@@ -482,7 +501,7 @@ config HPET_TIMER
          The HPET provides a stable time base on SMP
          systems, unlike the TSC, but it is more expensive to access,
          as it is off-chip.  You can find the HPET spec at
-         <http://www.intel.com/hardwaredesign/hpetspec.htm>.
+         <http://www.intel.com/hardwaredesign/hpetspec_1.pdf>.
 
          You can safely choose Y here.  However, HPET will only be
          activated if the platform and the BIOS support this feature.
@@ -567,9 +586,19 @@ config AMD_IOMMU
           your BIOS for an option to enable it or if you have an IVRS ACPI
           table.
 
+config AMD_IOMMU_STATS
+        bool "Export AMD IOMMU statistics to debugfs"
+        depends on AMD_IOMMU
+        select DEBUG_FS
+        help
+          This option enables code in the AMD IOMMU driver to collect various
+          statistics about whats happening in the driver and exports that
+          information to userspace via debugfs.
+          If unsure, say N.
+
 # need this always selected by IOMMU for the VIA workaround
 config SWIOTLB
-        bool
+        def_bool y if X86_64
         help
           Support for software bounce buffers used on x86-64 systems
           which don't have a hardware IOMMU (e.g. the current generation
@@ -580,21 +609,25 @@ config SWIOTLB
 config IOMMU_HELPER
         def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
 
+config IOMMU_API
+        def_bool (AMD_IOMMU || DMAR)
+
 config MAXSMP
         bool "Configure Maximum number of SMP Processors and NUMA Nodes"
-        depends on X86_64 && SMP && BROKEN
+        depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
+        select CPUMASK_OFFSTACK
         default n
         help
           Configure maximum number of CPUS and NUMA Nodes for this architecture.
           If unsure, say N.
 
 config NR_CPUS
-        int "Maximum number of CPUs (2-512)" if !MAXSMP
-        range 2 512
-        depends on SMP
+        int "Maximum number of CPUs" if SMP && !MAXSMP
+        range 2 512 if SMP && !MAXSMP
+        default "1" if !SMP
         default "4096" if MAXSMP
-        default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000
-        default "8"
+        default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)
+        default "8" if SMP
         help
           This allows you to specify the maximum number of CPUs which this
           kernel will support.  The maximum supported value is 512 and the
@@ -660,6 +693,30 @@ config X86_VISWS_APIC
         def_bool y
         depends on X86_32 && X86_VISWS
 
+config X86_REROUTE_FOR_BROKEN_BOOT_IRQS
+        bool "Reroute for broken boot IRQs"
+        default n
+        depends on X86_IO_APIC
+        help
+          This option enables a workaround that fixes a source of
+          spurious interrupts. This is recommended when threaded
+          interrupt handling is used on systems where the generation of
+          superfluous "boot interrupts" cannot be disabled.
+
+          Some chipsets generate a legacy INTx "boot IRQ" when the IRQ
+          entry in the chipset's IO-APIC is masked (as, e.g. the RT
+          kernel does during interrupt handling). On chipsets where this
+          boot IRQ generation cannot be disabled, this workaround keeps
+          the original IRQ line masked so that only the equivalent "boot
+          IRQ" is delivered to the CPUs. The workaround also tells the
+          kernel to set up the IRQ handler on the boot IRQ line. In this
+          way only one interrupt is delivered to the kernel. Otherwise
+          the spurious second interrupt may cause the kernel to bring
+          down (vital) interrupt lines.
+
+          Only affects "broken" chipsets. Interrupt sharing may be
+          increased on these systems.
+
 config X86_MCE
         bool "Machine Check Exception"
         depends on !X86_VOYAGER
@@ -956,24 +1013,37 @@ 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)
@@ -1493,6 +1563,10 @@ 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
@@ -1632,13 +1706,6 @@ 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"