Merge commit 'v2.6.28-rc2' into x86/pci-ioapic-boot-irq-quirks

1 files changed, 200 insertions, 95 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0952133..f4ed47d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -18,25 +18,28 @@ config X86_64
 ### Arch settings
 config X86
 	def_bool y
+	select HAVE_AOUT if X86_32
 	select HAVE_UNSTABLE_SCHED_CLOCK
 	select HAVE_IDE
 	select HAVE_OPROFILE
+	select HAVE_IOREMAP_PROT
 	select HAVE_KPROBES
+	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select HAVE_KRETPROBES
+	select HAVE_FTRACE_MCOUNT_RECORD
 	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
+	select HAVE_ARCH_TRACEHOOK
+	select HAVE_GENERIC_DMA_COHERENT if X86_32
+	select HAVE_EFFICIENT_UNALIGNED_ACCESS
 
 config ARCH_DEFCONFIG
 	string
 	default "arch/x86/configs/i386_defconfig" if X86_32
 	default "arch/x86/configs/x86_64_defconfig" if X86_64
 
-
-config GENERIC_LOCKBREAK
-	def_bool n
-
 config GENERIC_TIME
 	def_bool y
 
@@ -89,7 +92,7 @@ config GENERIC_HWEIGHT
 	def_bool y
 
 config GENERIC_GPIO
-	def_bool n
+	bool
 
 config ARCH_MAY_HAVE_PC_FDC
 	def_bool y
@@ -100,12 +103,6 @@ config RWSEM_GENERIC_SPINLOCK
 config RWSEM_XCHGADD_ALGORITHM
 	def_bool X86_XADD
 
-config ARCH_HAS_ILOG2_U32
-	def_bool n
-
-config ARCH_HAS_ILOG2_U64
-	def_bool n
-
 config ARCH_HAS_CPU_IDLE_WAIT
 	def_bool y
 
@@ -119,6 +116,9 @@ config GENERIC_TIME_VSYSCALL
 config ARCH_HAS_CPU_RELAX
 	def_bool y
 
+config ARCH_HAS_DEFAULT_IDLE
+	def_bool y
+
 config ARCH_HAS_CACHE_LINE_SIZE
 	def_bool y
 
@@ -147,9 +147,6 @@ config AUDIT_ARCH
 	bool
 	default X86_64
 
-config ARCH_SUPPORTS_AOUT
-	def_bool y
-
 config ARCH_SUPPORTS_OPTIMIZED_INLINING
 	def_bool y
 
@@ -200,6 +197,7 @@ config X86_TRAMPOLINE
 config KTIME_SCALAR
 	def_bool X86_32
 source "init/Kconfig"
+source "kernel/Kconfig.freezer"
 
 menu "Processor type and features"
 
@@ -329,20 +327,6 @@ config X86_BIGSMP
 
 endif
 
-config X86_RDC321X
-	bool "RDC R-321x SoC"
-	depends on X86_32
-	select M486
-	select X86_REBOOTFIXUPS
-	select GENERIC_GPIO
-	select LEDS_CLASS
-	select LEDS_GPIO
-	select NEW_LEDS
-	help
-	  This option is needed for RDC R-321x system-on-chip, also known
-	  as R-8610-(G).
-	  If you don't have one of these chips, you should say N here.
-
 config X86_VSMP
 	bool "Support for ScaleMP vSMP"
 	select PARAVIRT
@@ -366,6 +350,16 @@ config X86_VISWS
 	  A kernel compiled for the Visual Workstation will run on general
 	  PCs as well. See <file:Documentation/sgi-visws.txt> for details.
 
+config X86_RDC321X
+	bool "RDC R-321x SoC"
+	depends on X86_32
+	select M486
+	select X86_REBOOTFIXUPS
+	help
+	  This option is needed for RDC R-321x system-on-chip, also known
+	  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
 	def_bool y
 	prompt "Single-depth WCHAN output"
@@ -447,7 +441,6 @@ config PARAVIRT_DEBUG
 
 config MEMTEST
 	bool "Memtest"
-	depends on X86_64
 	help
 	  This option adds a kernel parameter 'memtest', which allows memtest
 	  to be set.
@@ -554,6 +547,7 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT
 config AMD_IOMMU
 	bool "AMD IOMMU support"
 	select SWIOTLB
+	select PCI_MSI
 	depends on X86_64 && PCI && ACPI
 	help
 	  With this option you can enable support for AMD IOMMU hardware in
@@ -578,35 +572,29 @@ config SWIOTLB
 
 config IOMMU_HELPER
 	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
+	depends on X86_64 && SMP && BROKEN
 	default n
 	help
 	  Configure maximum number of CPUS and NUMA Nodes for this architecture.
 	  If unsure, say N.
 
-if MAXSMP
-config NR_CPUS
-	int
-	default "4096"
-endif
-
-if !MAXSMP
 config NR_CPUS
-	int "Maximum number of CPUs (2-4096)"
-	range 2 4096
+	int "Maximum number of CPUs (2-512)" if !MAXSMP
+	range 2 512
 	depends on SMP
+	default "4096" if MAXSMP
 	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 4096 and the
+	  kernel will support.  The maximum supported value is 512 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"
@@ -789,9 +777,8 @@ config I8K
 	  Say N otherwise.
 
 config X86_REBOOTFIXUPS
-	def_bool n
-	prompt "Enable X86 board specific fixups for reboot"
-	depends on X86_32 && X86
+	bool "Enable X86 board specific fixups for reboot"
+	depends on X86_32
 	---help---
 	  This enables chipset and/or board specific fixups to be done
 	  in order to get reboot to work correctly. This is only needed on
@@ -807,23 +794,45 @@ config X86_REBOOTFIXUPS
 	  Say N otherwise.
 
 config MICROCODE
-	tristate "/dev/cpu/microcode - Intel IA32 CPU microcode support"
+	tristate "/dev/cpu/microcode - microcode support"
 	select FW_LOADER
 	---help---
 	  If you say Y here, you will be able to update the microcode on
-	  Intel processors in the IA32 family, e.g. Pentium Pro, Pentium II,
-	  Pentium III, Pentium 4, Xeon etc.  You will obviously need the
-	  actual microcode binary data itself which is not shipped with the
-	  Linux kernel.
+	  certain Intel and AMD processors. The Intel support is for the
+	  IA32 family, e.g. Pentium Pro, Pentium II, Pentium III,
+	  Pentium 4, Xeon etc. The AMD support is for family 0x10 and
+	  0x11 processors, e.g. Opteron, Phenom and Turion 64 Ultra.
+	  You will obviously need the actual microcode binary data itself
+	  which is not shipped with the Linux kernel.
 
-	  For latest news and information on obtaining all the required
-	  ingredients for this driver, check:
-	  <http://www.urbanmyth.org/microcode/>.
+	  This option selects the general module only, you need to select
+	  at least one vendor specific module as well.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called microcode.
 
-config MICROCODE_OLD_INTERFACE
+config MICROCODE_INTEL
+       bool "Intel microcode patch loading support"
+       depends on MICROCODE
+       default MICROCODE
+       select FW_LOADER
+       --help---
+         This options enables microcode patch loading support for Intel
+         processors.
+
+         For latest news and information on obtaining all the required
+         Intel ingredients for this driver, check:
+         <http://www.urbanmyth.org/microcode/>.
+
+config MICROCODE_AMD
+       bool "AMD microcode patch loading support"
+       depends on MICROCODE
+       select FW_LOADER
+       --help---
+         If you select this option, microcode patch loading support for AMD
+	 processors will be enabled.
+
+   config MICROCODE_OLD_INTERFACE
 	def_bool y
 	depends on MICROCODE
 
@@ -953,16 +962,17 @@ config HIGHMEM
 	depends on X86_32 && (HIGHMEM64G || HIGHMEM4G)
 
 config X86_PAE
-	def_bool n
-	prompt "PAE (Physical Address Extension) Support"
+	bool "PAE (Physical Address Extension) Support"
 	depends on X86_32 && !HIGHMEM4G
-	select RESOURCES_64BIT
 	help
 	  PAE is required for NX support, and furthermore enables
 	  larger swapspace support for non-overcommit purposes. It
 	  has the cost of more pagetable lookup overhead, and also
 	  consumes more pagetable space per process.
 
+config ARCH_PHYS_ADDR_T_64BIT
+       def_bool X86_64 || X86_PAE
+
 # Common NUMA Features
 config NUMA
 	bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
@@ -976,9 +986,9 @@ config NUMA
 	  local memory controller of the CPU and add some more
 	  NUMA awareness to the kernel.
 
-	  For i386 this is currently highly experimental and should be only
+	  For 32-bit this is currently highly experimental and should be only
 	  used for kernel development. It might also cause boot failures.
-	  For x86_64 this is recommended on all multiprocessor Opteron systems.
+	  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.
 
@@ -1021,17 +1031,10 @@ 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 "Maximum NUMA Nodes (as a power of 2)"
+	int "Maximum NUMA Nodes (as a power of 2)" if !MAXSMP
 	range 1 9   if X86_64
+	default "9" if MAXSMP
 	default "6" if X86_64
 	default "4" if X86_NUMAQ
 	default "3"
@@ -1039,7 +1042,6 @@ config NODES_SHIFT
 	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
@@ -1059,7 +1061,7 @@ config HAVE_ARCH_ALLOC_REMAP
 
 config ARCH_FLATMEM_ENABLE
 	def_bool y
-	depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC && !NUMA
+	depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && !NUMA
 
 config ARCH_DISCONTIGMEM_ENABLE
 	def_bool y
@@ -1075,7 +1077,7 @@ config ARCH_SPARSEMEM_DEFAULT
 
 config ARCH_SPARSEMEM_ENABLE
 	def_bool y
-	depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC)
+	depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC) || X86_GENERICARCH
 	select SPARSEMEM_STATIC if X86_32
 	select SPARSEMEM_VMEMMAP_ENABLE if X86_64
 
@@ -1098,6 +1100,56 @@ config HIGHPTE
 	  low memory.  Setting this option will put user-space page table
 	  entries in high memory.
 
+config X86_CHECK_BIOS_CORRUPTION
+        bool "Check for low memory corruption"
+	help
+	 Periodically check for memory corruption in low memory, which
+	 is suspected to be caused by BIOS.  Even when enabled in the
+	 configuration, it is disabled at runtime.  Enable it by
+	 setting "memory_corruption_check=1" on the kernel command
+	 line.  By default it scans the low 64k of memory every 60
+	 seconds; see the memory_corruption_check_size and
+	 memory_corruption_check_period parameters in
+	 Documentation/kernel-parameters.txt to adjust this.
+
+	 When enabled with the default parameters, this option has
+	 almost no overhead, as it reserves a relatively small amount
+	 of memory and scans it infrequently.  It both detects corruption
+	 and prevents it from affecting the running system.
+
+	 It is, however, intended as a diagnostic tool; if repeatable
+	 BIOS-originated corruption always affects the same memory,
+	 you can use memmap= to prevent the kernel from using that
+	 memory.
+
+config X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK
+        bool "Set the default setting of memory_corruption_check"
+	depends on X86_CHECK_BIOS_CORRUPTION
+	default y
+	help
+	 Set whether the default state of memory_corruption_check is
+	 on or off.
+
+config X86_RESERVE_LOW_64K
+        bool "Reserve low 64K of RAM on AMI/Phoenix BIOSen"
+	default y
+	help
+	 Reserve the first 64K of physical RAM on BIOSes that are known
+	 to potentially corrupt that memory range. A numbers of BIOSes are
+	 known to utilize this area during suspend/resume, so it must not
+	 be used by the kernel.
+
+	 Set this to N if you are absolutely sure that you trust the BIOS
+	 to get all its memory reservations and usages right.
+
+	 If you have doubts about the BIOS (e.g. suspend/resume does not
+	 work or there's kernel crashes after certain hardware hotplug
+	 events) and it's not AMI or Phoenix, then you might want to enable
+	 X86_CHECK_BIOS_CORRUPTION=y to allow the kernel to check typical
+	 corruption patterns.
+
+	 Say Y if unsure.
+
 config MATH_EMULATION
 	bool
 	prompt "Math emulation" if X86_32
@@ -1156,10 +1208,10 @@ config MTRR
 	  You can safely say Y even if your machine doesn't have MTRRs, you'll
 	  just add about 9 KB to your kernel.
 
-	  See <file:Documentation/mtrr.txt> for more information.
+	  See <file:Documentation/x86/mtrr.txt> for more information.
 
 config MTRR_SANITIZER
-	bool
+	def_bool y
 	prompt "MTRR cleanup support"
 	depends on MTRR
 	help
@@ -1170,7 +1222,7 @@ config MTRR_SANITIZER
 	  The largest mtrr entry size for a continous block can be set with
 	  mtrr_chunk_size.
 
-	  If unsure, say N.
+	  If unsure, say Y.
 
 config MTRR_SANITIZER_ENABLE_DEFAULT
 	int "MTRR cleanup enable value (0-1)"
@@ -1205,8 +1257,7 @@ config X86_PAT
 	  If unsure, say Y.
 
 config EFI
-	def_bool n
-	prompt "EFI runtime service support"
+	bool "EFI runtime service support"
 	depends on ACPI
 	---help---
 	This enables the kernel to use EFI runtime services that are
@@ -1219,18 +1270,9 @@ config EFI
   	resultant kernel should continue to boot on existing non-EFI
   	platforms.
 
-config IRQBALANCE
-	def_bool y
-	prompt "Enable kernel irq balancing"
-	depends on X86_32 && SMP && X86_IO_APIC
-	help
-	  The default yes will allow the kernel to do irq load balancing.
-	  Saying no will keep the kernel from doing irq load balancing.
-
 config SECCOMP
 	def_bool y
 	prompt "Enable seccomp to safely compute untrusted bytecode"
-	depends on PROC_FS
 	help
 	  This kernel feature is useful for number crunching applications
 	  that may need to compute untrusted bytecode during their
@@ -1238,7 +1280,7 @@ config SECCOMP
 	  the process as file descriptors supporting the read/write
 	  syscalls, it's possible to isolate those applications in
 	  their own address space using seccomp. Once seccomp is
-	  enabled via /proc/<pid>/seccomp, it cannot be disabled
+	  enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
 	  and the task is only allowed to execute a few safe syscalls
 	  defined by each seccomp mode.
 
@@ -1288,7 +1330,7 @@ config KEXEC
 	  strongly in flux, so no good recommendation can be made.
 
 config CRASH_DUMP
-	bool "kernel crash dumps (EXPERIMENTAL)"
+	bool "kernel crash dumps"
 	depends on X86_64 || (X86_32 && HIGHMEM)
 	help
 	  Generate crash dump after being started by kexec.
@@ -1301,6 +1343,14 @@ config CRASH_DUMP
 	  (CONFIG_RELOCATABLE=y).
 	  For more details see Documentation/kdump/kdump.txt
 
+config KEXEC_JUMP
+	bool "kexec jump (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	depends on KEXEC && HIBERNATION && X86_32
+	help
+	  Jump between original kernel and kexeced kernel and invoke
+	  code in physical address mode via KEXEC
+
 config PHYSICAL_START
 	hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
 	default "0x1000000" if X86_NUMAQ
@@ -1387,14 +1437,14 @@ config PHYSICAL_ALIGN
 	  Don't change this unless you know what you are doing.
 
 config HOTPLUG_CPU
-	bool "Support for suspend on SMP and hot-pluggable CPUs (EXPERIMENTAL)"
-	depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER
+	bool "Support for hot-pluggable CPUs"
+	depends on SMP && HOTPLUG && !X86_VOYAGER
 	---help---
-	  Say Y here to experiment with turning CPUs off and on, and to
-	  enable suspend on SMP systems. CPUs can be controlled through
-	  /sys/devices/system/cpu.
-	  Say N if you want to disable CPU hotplug and don't need to
-	  suspend.
+	  Say Y here to allow turning CPUs off and on. CPUs can be
+	  controlled through /sys/devices/system/cpu.
+	  ( Note: power management support will enable this option
+	    automatically on SMP systems. )
+	  Say N if you want to disable CPU hotplug.
 
 config COMPAT_VDSO
 	def_bool y
@@ -1409,6 +1459,51 @@ config COMPAT_VDSO
 
 	  If unsure, say Y.
 
+config CMDLINE_BOOL
+	bool "Built-in kernel command line"
+	default n
+	help
+	  Allow for specifying boot arguments to the kernel at
+	  build time.  On some systems (e.g. embedded ones), it is
+	  necessary or convenient to provide some or all of the
+	  kernel boot arguments with the kernel itself (that is,
+	  to not rely on the boot loader to provide them.)
+
+	  To compile command line arguments into the kernel,
+	  set this option to 'Y', then fill in the
+	  the boot arguments in CONFIG_CMDLINE.
+
+	  Systems with fully functional boot loaders (i.e. non-embedded)
+	  should leave this option set to 'N'.
+
+config CMDLINE
+	string "Built-in kernel command string"
+	depends on CMDLINE_BOOL
+	default ""
+	help
+	  Enter arguments here that should be compiled into the kernel
+	  image and used at boot time.  If the boot loader provides a
+	  command line at boot time, it is appended to this string to
+	  form the full kernel command line, when the system boots.
+
+	  However, you can use the CONFIG_CMDLINE_OVERRIDE option to
+	  change this behavior.
+
+	  In most cases, the command line (whether built-in or provided
+	  by the boot loader) should specify the device for the root
+	  file system.
+
+config CMDLINE_OVERRIDE
+	bool "Built-in command line overrides boot loader arguments"
+	default n
+	depends on CMDLINE_BOOL
+	help
+	  Set this option to 'Y' to have the kernel ignore the boot loader
+	  command line, and use ONLY the built-in command line.
+
+	  This is used to work around broken boot loaders.  This should
+	  be set to 'N' under normal conditions.
+
 endmenu
 
 config ARCH_ENABLE_MEMORY_HOTPLUG
@@ -1567,6 +1662,8 @@ source "arch/x86/kernel/cpu/cpufreq/Kconfig"
 
 source "drivers/cpuidle/Kconfig"
 
+source "drivers/idle/Kconfig"
+
 endmenu
 
 
@@ -1674,6 +1771,14 @@ config DMAR_FLOPPY_WA
 	 workaround will setup a 1:1 mapping for the first
 	 16M to make floppy (an ISA device) work.
 
+config INTR_REMAP
+	bool "Support for Interrupt Remapping (EXPERIMENTAL)"
+	depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL
+	help
+	 Supports Interrupt remapping for IO-APIC and MSI devices.
+	 To use x2apic mode in the CPU's which support x2APIC enhancements or
+	 to support platforms with CPU's having > 8 bit APIC ID, say Y.
+
 source "drivers/pci/pcie/Kconfig"
 
 source "drivers/pci/Kconfig"
@@ -1790,7 +1895,7 @@ config IA32_EMULATION
 
 config IA32_AOUT
        tristate "IA32 a.out support"
-       depends on IA32_EMULATION && ARCH_SUPPORTS_AOUT
+       depends on IA32_EMULATION
        help
          Support old a.out binaries in the 32bit emulation.
 
@@ -1804,7 +1909,7 @@ config COMPAT_FOR_U64_ALIGNMENT
 
 config SYSVIPC_COMPAT
 	def_bool y
-	depends on X86_64 && COMPAT && SYSVIPC
+	depends on COMPAT && SYSVIPC
 
 endmenu