Merge branch 'linus' into x86/urgent

1 files changed, 179 insertions, 103 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bf07b6f50fa1..6958d6bcaf70 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,6 +23,8 @@ config X86
         select HAVE_OPROFILE
         select HAVE_KPROBES
         select HAVE_KRETPROBES
+        select HAVE_DYNAMIC_FTRACE
+        select HAVE_FTRACE
         select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
         select HAVE_ARCH_KGDB if !X86_VOYAGER
 
@@ -121,7 +123,7 @@ config ARCH_HAS_CACHE_LINE_SIZE
         def_bool y
 
 config HAVE_SETUP_PER_CPU_AREA
-        def_bool X86_64 || (X86_SMP && !X86_VOYAGER)
+        def_bool X86_64_SMP || (X86_SMP && !X86_VOYAGER)
 
 config HAVE_CPUMASK_OF_CPU_MAP
         def_bool X86_64_SMP
@@ -181,12 +183,12 @@ config X86_64_SMP
 config X86_HT
         bool
         depends on SMP
-        depends on (X86_32 && !(X86_VISWS || X86_VOYAGER)) || X86_64
+        depends on (X86_32 && !X86_VOYAGER) || X86_64
         default y
 
 config X86_BIOS_REBOOT
         bool
-        depends on !X86_VISWS && !X86_VOYAGER
+        depends on !X86_VOYAGER
         default y
 
 config X86_TRAMPOLINE
@@ -230,6 +232,26 @@ config SMP
 
           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"
+        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"
         default X86_PC
@@ -251,7 +273,7 @@ config X86_ELAN
 
 config X86_VOYAGER
         bool "Voyager (NCR)"
-        depends on X86_32 && (SMP || BROKEN)
+        depends on X86_32 && (SMP || BROKEN) && !PCI
         help
           Voyager is an MCA-based 32-way capable SMP architecture proprietary
           to NCR Corp.  Machine classes 345x/35xx/4100/51xx are Voyager-based.
@@ -261,16 +283,27 @@ config X86_VOYAGER
           If you do not specifically know you have a Voyager based machine,
           say N here, otherwise the kernel you build will not be bootable.
 
+config X86_GENERICARCH
+       bool "Generic architecture"
+        depends on X86_32
+       help
+          This option compiles in the NUMAQ, Summit, bigsmp, ES7000, default
+          subarchitectures.  It is intended for a generic binary kernel.
+          if you select them all, kernel will probe it one by one. and will
+          fallback to default.
+
+if X86_GENERICARCH
+
 config X86_NUMAQ
         bool "NUMAQ (IBM/Sequent)"
-        depends on SMP && X86_32
+        depends on SMP && X86_32 && PCI && X86_MPPARSE
         select NUMA
         help
-          This option is used for getting Linux to run on a (IBM/Sequent) NUMA
-          multiquad box. This changes the way that processors are bootstrapped,
-          and uses Clustered Logical APIC addressing mode instead of Flat Logical.
-          You will need a new lynxer.elf file to flash your firmware with - send
-          email to <Martin.Bligh@us.ibm.com>.
+          This option is used for getting Linux to run on a NUMAQ (IBM/Sequent)
+          NUMA multiquad box. This changes the way that processors are
+          bootstrapped, and uses Clustered Logical APIC addressing mode instead
+          of Flat Logical.  You will need a new lynxer.elf file to flash your
+          firmware with - send email to <Martin.Bligh@us.ibm.com>.
 
 config X86_SUMMIT
         bool "Summit/EXA (IBM x440)"
@@ -279,46 +312,21 @@ config X86_SUMMIT
           This option is needed for IBM systems that use the Summit/EXA chipset.
           In particular, it is needed for the x440.
 
-          If you don't have one of these computers, you should say N here.
-          If you want to build a NUMA kernel, you must select ACPI.
+config X86_ES7000
+        bool "Support for Unisys ES7000 IA32 series"
+        depends on X86_32 && SMP
+        help
+          Support for Unisys ES7000 systems.  Say 'Y' here if this kernel is
+          supposed to run on an IA32-based Unisys ES7000 system.
 
 config X86_BIGSMP
-        bool "Support for other sub-arch SMP systems with more than 8 CPUs"
+        bool "Support for big SMP systems with more than 8 CPUs"
         depends on X86_32 && SMP
         help
           This option is needed for the systems that have more than 8 CPUs
           and if the system is not of any sub-arch type above.
 
-          If you don't have such a system, you should say N here.
-
-config X86_VISWS
-        bool "SGI 320/540 (Visual Workstation)"
-        depends on X86_32
-        help
-          The SGI Visual Workstation series is an IA32-based workstation
-          based on SGI systems chips with some legacy PC hardware attached.
-
-          Say Y here to create a kernel to run on the SGI 320 or 540.
-
-          A kernel compiled for the Visual Workstation will not run on PCs
-          and vice versa. See <file:Documentation/sgi-visws.txt> for details.
-
-config X86_GENERICARCH
-       bool "Generic architecture (Summit, bigsmp, ES7000, default)"
-        depends on X86_32
-       help
-          This option compiles in the Summit, bigsmp, ES7000, default subarchitectures.
-          It is intended for a generic binary kernel.
-          If you want a NUMA kernel, select ACPI.   We need SRAT for NUMA.
-
-config X86_ES7000
-        bool "Support for Unisys ES7000 IA32 series"
-        depends on X86_32 && SMP
-        help
-          Support for Unisys ES7000 systems.  Say 'Y' here if this kernel is
-          supposed to run on an IA32-based Unisys ES7000 system.
-          Only choose this option if you have such a system, otherwise you
-          should say N here.
+endif
 
 config X86_RDC321X
         bool "RDC R-321x SoC"
@@ -337,7 +345,7 @@ config X86_RDC321X
 config X86_VSMP
         bool "Support for ScaleMP vSMP"
         select PARAVIRT
-        depends on X86_64
+        depends on X86_64 && PCI
         help
           Support for ScaleMP vSMP systems.  Say 'Y' here if this kernel is
           supposed to run on these EM64T-based machines.  Only choose this option
@@ -345,6 +353,18 @@ config X86_VSMP
 
 endchoice
 
+config X86_VISWS
+        bool "SGI 320/540 (Visual Workstation)"
+        depends on X86_32 && PCI && !X86_VOYAGER && X86_MPPARSE && PCI_GODIRECT
+        help
+          The SGI Visual Workstation series is an IA32-based workstation
+          based on SGI systems chips with some legacy PC hardware attached.
+
+          Say Y here to create a kernel to run on the SGI 320 or 540.
+
+          A kernel compiled for the Visual Workstation will run on general
+          PCs as well. See <file:Documentation/sgi-visws.txt> for details.
+
 config SCHED_NO_NO_OMIT_FRAME_POINTER
         def_bool y
         prompt "Single-depth WCHAN output"
@@ -373,7 +393,7 @@ config VMI
         bool "VMI Guest support"
         select PARAVIRT
         depends on X86_32
-        depends on !(X86_VISWS || X86_VOYAGER)
+        depends on !X86_VOYAGER
         help
           VMI provides a paravirtualized interface to the VMware ESX server
           (it could be used by other hypervisors in theory too, but is not
@@ -384,7 +404,7 @@ config KVM_CLOCK
         bool "KVM paravirtualized clock"
         select PARAVIRT
         select PARAVIRT_CLOCK
-        depends on !(X86_VISWS || X86_VOYAGER)
+        depends on !X86_VOYAGER
         help
           Turning on this option will allow you to run a paravirtualized clock
           when running over the KVM hypervisor. Instead of relying on a PIT
@@ -395,7 +415,7 @@ config KVM_CLOCK
 config KVM_GUEST
         bool "KVM Guest support"
         select PARAVIRT
-        depends on !(X86_VISWS || X86_VOYAGER)
+        depends on !X86_VOYAGER
         help
          This option enables various optimizations for running under the KVM
          hypervisor.
@@ -404,7 +424,7 @@ source "arch/x86/lguest/Kconfig"
 
 config PARAVIRT
         bool "Enable paravirtualization code"
-        depends on !(X86_VISWS || X86_VOYAGER)
+        depends on !X86_VOYAGER
         help
           This changes the kernel so it can modify itself when it is run
           under a hypervisor, potentially improving performance significantly
@@ -417,51 +437,33 @@ config PARAVIRT_CLOCK
 
 endif
 
-config MEMTEST_BOOTPARAM
-        bool "Memtest boot parameter"
+config PARAVIRT_DEBUG
+       bool "paravirt-ops debugging"
+       depends on PARAVIRT && DEBUG_KERNEL
+       help
+         Enable to debug paravirt_ops internals.  Specifically, BUG if
+         a paravirt_op is missing when it is called.
+
+config MEMTEST
+        bool "Memtest"
         depends on X86_64
         default y
         help
           This option adds a kernel parameter 'memtest', which allows memtest
-          to be disabled at boot.  If this option is selected, memtest
-          functionality can be disabled with memtest=0 on the kernel
-          command line.  The purpose of this option is to allow a single
-          kernel image to be distributed with memtest built in, but not
-          necessarily enabled.
-
+          to be set.
+                memtest=0, mean disabled; -- default
+                memtest=1, mean do 1 test pattern;
+                ...
+                memtest=4, mean do 4 test patterns.
           If you are unsure how to answer this question, answer Y.
 
-config MEMTEST_BOOTPARAM_VALUE
-        int "Memtest boot parameter default value (0-4)"
-        depends on MEMTEST_BOOTPARAM
-        range 0 4
-        default 0
-        help
-          This option sets the default value for the kernel parameter
-          'memtest', which allows memtest to be disabled at boot.  If this
-          option is set to 0 (zero), the memtest kernel parameter will
-          default to 0, disabling memtest at bootup.  If this option is
-          set to 4, the memtest kernel parameter will default to 4,
-          enabling memtest at bootup, and use that as pattern number.
-
-          If you are unsure how to answer this question, answer 0.
-
-config ACPI_SRAT
-        def_bool y
-        depends on X86_32 && ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH)
-        select ACPI_NUMA
-
-config HAVE_ARCH_PARSE_SRAT
-        def_bool y
-        depends on ACPI_SRAT
-
 config X86_SUMMIT_NUMA
         def_bool y
-        depends on X86_32 && NUMA && (X86_SUMMIT || X86_GENERICARCH)
+        depends on X86_32 && NUMA && X86_GENERICARCH
 
 config X86_CYCLONE_TIMER
         def_bool y
-        depends on X86_32 && X86_SUMMIT || X86_GENERICARCH
+        depends on X86_GENERICARCH
 
 config ES7000_CLUSTERED_APIC
         def_bool y
@@ -549,6 +551,21 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT
           Calgary anyway, pass 'iommu=calgary' on the kernel command line.
           If unsure, say Y.
 
+config AMD_IOMMU
+        bool "AMD IOMMU support"
+        select SWIOTLB
+        depends on X86_64 && PCI && ACPI
+        help
+          With this option you can enable support for AMD IOMMU hardware in
+          your system. An IOMMU is a hardware component which provides
+          remapping of DMA memory accesses from devices. With an AMD IOMMU you
+          can isolate the the DMA memory of different devices and protect the
+          system from misbehaving device drivers or hardware.
+
+          You can find out if your system has an AMD IOMMU if you look into
+          your BIOS for an option to enable it or if you have an IVRS ACPI
+          table.
+
 # need this always selected by IOMMU for the VIA workaround
 config SWIOTLB
         bool
@@ -560,21 +577,36 @@ config SWIOTLB
           3 GB of memory. If unsure, say Y.
 
 config IOMMU_HELPER
-        def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB)
+        def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
+config MAXSMP
+        bool "Configure Maximum number of SMP Processors and NUMA Nodes"
+        depends on X86_64 && SMP
+        default n
+        help
+          Configure maximum number of CPUS and NUMA Nodes for this architecture.
+          If unsure, say N.
 
+if MAXSMP
 config NR_CPUS
-        int "Maximum number of CPUs (2-255)"
-        range 2 255
+        int
+        default "4096"
+endif
+
+if !MAXSMP
+config NR_CPUS
+        int "Maximum number of CPUs (2-4096)"
+        range 2 4096
         depends on SMP
         default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000
         default "8"
         help
           This allows you to specify the maximum number of CPUs which this
-          kernel will support.  The maximum supported value is 255 and the
+          kernel will support.  The maximum supported value is 4096 and the
           minimum value which makes sense is 2.
 
           This is purely to save memory - each supported CPU adds
           approximately eight kilobytes to the kernel image.
+endif
 
 config SCHED_SMT
         bool "SMT (Hyperthreading) scheduler support"
@@ -598,7 +630,7 @@ source "kernel/Kconfig.preempt"
 
 config X86_UP_APIC
         bool "Local APIC support on uniprocessors"
-        depends on X86_32 && !SMP && !(X86_VISWS || X86_VOYAGER || X86_GENERICARCH)
+        depends on X86_32 && !SMP && !(X86_VOYAGER || X86_GENERICARCH)
         help
           A local APIC (Advanced Programmable Interrupt Controller) is an
           integrated interrupt controller in the CPU. If you have a single-CPU
@@ -623,11 +655,11 @@ config X86_UP_IOAPIC
 
 config X86_LOCAL_APIC
         def_bool y
-        depends on X86_64 || (X86_32 && (X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) || X86_GENERICARCH))
+        depends on X86_64 || (X86_32 && (X86_UP_APIC || (SMP && !X86_VOYAGER) || X86_GENERICARCH))
 
 config X86_IO_APIC
         def_bool y
-        depends on X86_64 || (X86_32 && (X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) || X86_GENERICARCH))
+        depends on X86_64 || (X86_32 && (X86_UP_IOAPIC || (SMP && !X86_VOYAGER) || X86_GENERICARCH))
 
 config X86_VISWS_APIC
         def_bool y
@@ -681,7 +713,7 @@ config X86_MCE_NONFATAL
 
 config X86_MCE_P4THERMAL
         bool "check for P4 thermal throttling interrupt."
-        depends on X86_32 && X86_MCE && (X86_UP_APIC || SMP) && !X86_VISWS
+        depends on X86_32 && X86_MCE && (X86_UP_APIC || SMP)
         help
           Enabling this feature will cause a message to be printed when the P4
           enters thermal throttling.
@@ -911,9 +943,9 @@ config X86_PAE
 config NUMA
         bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
         depends on SMP
-        depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL)
+        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)
+        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
@@ -965,13 +997,25 @@ config NUMA_EMU
           into virtual nodes when booted with "numa=fake=N", where N is the
           number of nodes. This is only useful for debugging.
 
+if MAXSMP
+
+config NODES_SHIFT
+        int
+        default "9"
+endif
+
+if !MAXSMP
 config NODES_SHIFT
-        int "Max num nodes shift(1-9)"
-        range 1 9  if X86_64
+        int "Maximum NUMA Nodes (as a power of 2)"
+        range 1 9   if X86_64
         default "6" if X86_64
         default "4" if X86_NUMAQ
         default "3"
         depends on NEED_MULTIPLE_NODES
+        help
+          Specify the maximum number of NUMA Nodes available on the target
+          system.  Increases memory reserved to accomodate various tables.
+endif
 
 config HAVE_ARCH_BOOTMEM_NODE
         def_bool y
@@ -1090,6 +1134,40 @@ config MTRR
 
           See <file:Documentation/mtrr.txt> for more information.
 
+config MTRR_SANITIZER
+        def_bool y
+        prompt "MTRR cleanup support"
+        depends on MTRR
+        help
+          Convert MTRR layout from continuous to discrete, so some X driver
+          could add WB entries.
+
+          Say N here if you see bootup problems (boot crash, boot hang,
+          spontaneous reboots).
+
+          Could be disabled with disable_mtrr_cleanup. Also mtrr_chunk_size
+          could be used to send largest mtrr entry size for continuous block
+          to hold holes (aka. UC entries)
+
+          If unsure, say Y.
+
+config MTRR_SANITIZER_ENABLE_DEFAULT
+        int "MTRR cleanup enable value (0-1)"
+        range 0 1
+        default "0"
+        depends on MTRR_SANITIZER
+        help
+          Enable mtrr cleanup default value
+
+config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT
+        int "MTRR cleanup spare reg num (0-7)"
+        range 0 7
+        default "1"
+        depends on MTRR_SANITIZER
+        help
+          mtrr cleanup spare entries default, it can be changed via
+          mtrr_spare_reg_nr=
+
 config X86_PAT
         bool
         prompt "x86 PAT support"
@@ -1190,7 +1268,6 @@ config KEXEC
 
 config CRASH_DUMP
         bool "kernel crash dumps (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
         depends on X86_64 || (X86_32 && HIGHMEM)
         help
           Generate crash dump after being started by kexec.
@@ -1339,7 +1416,7 @@ config X86_APM_BOOT
 
 menuconfig APM
         tristate "APM (Advanced Power Management) BIOS support"
-        depends on X86_32 && PM_SLEEP && !X86_VISWS
+        depends on X86_32 && PM_SLEEP
         ---help---
           APM is a BIOS specification for saving power using several different
           techniques. This is mostly useful for battery powered laptops with
@@ -1475,8 +1552,7 @@ endmenu
 menu "Bus options (PCI etc.)"
 
 config PCI
-        bool "PCI support" if !X86_VISWS && !X86_VSMP
-        depends on !X86_VOYAGER
+        bool "PCI support"
         default y
         select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)
         help
@@ -1487,7 +1563,7 @@ config PCI
 
 choice
         prompt "PCI access mode"
-        depends on X86_32 && PCI && !X86_VISWS
+        depends on X86_32 && PCI
         default PCI_GOANY
         ---help---
           On PCI systems, the BIOS can be used to detect the PCI devices and
@@ -1524,12 +1600,12 @@ endchoice
 
 config PCI_BIOS
         def_bool y
-        depends on X86_32 && !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY)
+        depends on X86_32 && PCI && (PCI_GOBIOS || PCI_GOANY)
 
 # x86-64 doesn't support PCI BIOS access from long mode so always go direct.
 config PCI_DIRECT
         def_bool y
-        depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC) || X86_VISWS)
+        depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC))
 
 config PCI_MMCONFIG
         def_bool y
@@ -1589,7 +1665,7 @@ if X86_32
 
 config ISA
         bool "ISA support"
-        depends on !(X86_VOYAGER || X86_VISWS)
+        depends on !X86_VOYAGER
         help
           Find out whether you have ISA slots on your motherboard.  ISA is the
           name of a bus system, i.e. the way the CPU talks to the other stuff
@@ -1616,7 +1692,7 @@ config EISA
 source "drivers/eisa/Kconfig"
 
 config MCA
-        bool "MCA support" if !(X86_VISWS || X86_VOYAGER)
+        bool "MCA support" if !X86_VOYAGER
         default y if X86_VOYAGER
         help
           MicroChannel Architecture is found in some IBM PS/2 machines and