generic: add phys_addr_t for holding physical addresses

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

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b2ddfcf0172848f645370e1c390fdb29347961ae..a0ffb5188c8cc24be9648c8e6a50ed66d532be34 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,11 +23,14 @@ config X86
        select HAVE_OPROFILE
        select HAVE_IOREMAP_PROT
        select HAVE_KPROBES
+       select ARCH_WANT_OPTIONAL_GPIOLIB
        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
+       select HAVE_GENERIC_DMA_COHERENT if X86_32
+       select HAVE_EFFICIENT_UNALIGNED_ACCESS
 
 config ARCH_DEFCONFIG
        string
@@ -330,20 +333,6 @@ 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
@@ -367,6 +356,16 @@ 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"
@@ -578,35 +577,29 @@ 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"
@@ -939,6 +932,9 @@ config X86_PAE
          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)"
@@ -952,9 +948,9 @@ 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.
 
@@ -997,17 +993,10 @@ 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"
@@ -1015,7 +1004,6 @@ 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
@@ -1264,7 +1252,7 @@ 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.
@@ -1277,6 +1265,14 @@ 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