x86: move i386 and x86_64 Kconfig files to x86 directory
After a small change in kconfig Makefile we could move all x86 Kconfig files to x86 directory. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Sam Ravnborg
372
arch/x86/Kconfig.cpu
Normal file
372
arch/x86/Kconfig.cpu
Normal file
@ -0,0 +1,372 @@
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# Put here option for CPU selection and depending optimization
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if !X86_ELAN
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choice
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prompt "Processor family"
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default M686
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config M386
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bool "386"
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depends on !UML
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---help---
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This is the processor type of your CPU. This information is used for
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optimizing purposes. In order to compile a kernel that can run on
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all x86 CPU types (albeit not optimally fast), you can specify
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"386" here.
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The kernel will not necessarily run on earlier architectures than
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the one you have chosen, e.g. a Pentium optimized kernel will run on
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a PPro, but not necessarily on a i486.
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Here are the settings recommended for greatest speed:
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- "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
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486DLC/DLC2, UMC 486SX-S and NexGen Nx586. Only "386" kernels
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will run on a 386 class machine.
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- "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
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SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
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- "586" for generic Pentium CPUs lacking the TSC
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(time stamp counter) register.
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- "Pentium-Classic" for the Intel Pentium.
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- "Pentium-MMX" for the Intel Pentium MMX.
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- "Pentium-Pro" for the Intel Pentium Pro.
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- "Pentium-II" for the Intel Pentium II or pre-Coppermine Celeron.
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- "Pentium-III" for the Intel Pentium III or Coppermine Celeron.
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- "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
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- "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
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- "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
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- "Crusoe" for the Transmeta Crusoe series.
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- "Efficeon" for the Transmeta Efficeon series.
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- "Winchip-C6" for original IDT Winchip.
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- "Winchip-2" for IDT Winchip 2.
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- "Winchip-2A" for IDT Winchips with 3dNow! capabilities.
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- "GeodeGX1" for Geode GX1 (Cyrix MediaGX).
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- "Geode GX/LX" For AMD Geode GX and LX processors.
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- "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
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- "VIA C3-2" for VIA C3-2 "Nehemiah" (model 9 and above).
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- "VIA C7" for VIA C7.
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If you don't know what to do, choose "386".
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config M486
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bool "486"
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help
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Select this for a 486 series processor, either Intel or one of the
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compatible processors from AMD, Cyrix, IBM, or Intel. Includes DX,
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DX2, and DX4 variants; also SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or
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U5S.
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config M586
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bool "586/K5/5x86/6x86/6x86MX"
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help
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Select this for an 586 or 686 series processor such as the AMD K5,
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the Cyrix 5x86, 6x86 and 6x86MX. This choice does not
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assume the RDTSC (Read Time Stamp Counter) instruction.
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config M586TSC
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bool "Pentium-Classic"
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help
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Select this for a Pentium Classic processor with the RDTSC (Read
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Time Stamp Counter) instruction for benchmarking.
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config M586MMX
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bool "Pentium-MMX"
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help
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Select this for a Pentium with the MMX graphics/multimedia
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extended instructions.
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config M686
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bool "Pentium-Pro"
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help
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Select this for Intel Pentium Pro chips. This enables the use of
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Pentium Pro extended instructions, and disables the init-time guard
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against the f00f bug found in earlier Pentiums.
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config MPENTIUMII
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bool "Pentium-II/Celeron(pre-Coppermine)"
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help
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Select this for Intel chips based on the Pentium-II and
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pre-Coppermine Celeron core. This option enables an unaligned
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copy optimization, compiles the kernel with optimization flags
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tailored for the chip, and applies any applicable Pentium Pro
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optimizations.
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config MPENTIUMIII
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bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
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help
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Select this for Intel chips based on the Pentium-III and
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Celeron-Coppermine core. This option enables use of some
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extended prefetch instructions in addition to the Pentium II
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extensions.
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config MPENTIUMM
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bool "Pentium M"
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help
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Select this for Intel Pentium M (not Pentium-4 M)
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notebook chips.
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config MCORE2
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bool "Core 2/newer Xeon"
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help
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Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and 53xx)
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CPUs. You can distinguish newer from older Xeons by the CPU family
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in /proc/cpuinfo. Newer ones have 6 and older ones 15 (not a typo)
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config MPENTIUM4
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bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/older Xeon"
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help
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Select this for Intel Pentium 4 chips. This includes the
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Pentium 4, Pentium D, P4-based Celeron and Xeon, and
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Pentium-4 M (not Pentium M) chips. This option enables compile
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flags optimized for the chip, uses the correct cache line size, and
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applies any applicable optimizations.
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CPUIDs: F[0-6][1-A] (in /proc/cpuinfo show = cpu family : 15 )
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Select this for:
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Pentiums (Pentium 4, Pentium D, Celeron, Celeron D) corename:
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-Willamette
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-Northwood
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-Mobile Pentium 4
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-Mobile Pentium 4 M
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-Extreme Edition (Gallatin)
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-Prescott
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-Prescott 2M
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-Cedar Mill
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-Presler
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-Smithfiled
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Xeons (Intel Xeon, Xeon MP, Xeon LV, Xeon MV) corename:
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-Foster
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-Prestonia
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-Gallatin
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-Nocona
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-Irwindale
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-Cranford
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-Potomac
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-Paxville
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-Dempsey
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config MK6
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bool "K6/K6-II/K6-III"
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help
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Select this for an AMD K6-family processor. Enables use of
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some extended instructions, and passes appropriate optimization
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flags to GCC.
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config MK7
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bool "Athlon/Duron/K7"
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help
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Select this for an AMD Athlon K7-family processor. Enables use of
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some extended instructions, and passes appropriate optimization
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flags to GCC.
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config MK8
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bool "Opteron/Athlon64/Hammer/K8"
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help
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Select this for an AMD Opteron or Athlon64 Hammer-family processor. Enables
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use of some extended instructions, and passes appropriate optimization
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flags to GCC.
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config MCRUSOE
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bool "Crusoe"
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help
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Select this for a Transmeta Crusoe processor. Treats the processor
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like a 586 with TSC, and sets some GCC optimization flags (like a
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Pentium Pro with no alignment requirements).
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config MEFFICEON
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bool "Efficeon"
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help
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Select this for a Transmeta Efficeon processor.
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config MWINCHIPC6
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bool "Winchip-C6"
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help
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Select this for an IDT Winchip C6 chip. Linux and GCC
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treat this chip as a 586TSC with some extended instructions
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and alignment requirements.
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config MWINCHIP2
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bool "Winchip-2"
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help
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Select this for an IDT Winchip-2. Linux and GCC
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treat this chip as a 586TSC with some extended instructions
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and alignment requirements.
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config MWINCHIP3D
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bool "Winchip-2A/Winchip-3"
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help
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Select this for an IDT Winchip-2A or 3. Linux and GCC
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treat this chip as a 586TSC with some extended instructions
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and alignment requirements. Also enable out of order memory
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stores for this CPU, which can increase performance of some
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operations.
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config MGEODEGX1
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bool "GeodeGX1"
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help
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Select this for a Geode GX1 (Cyrix MediaGX) chip.
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config MGEODE_LX
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bool "Geode GX/LX"
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help
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Select this for AMD Geode GX and LX processors.
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config MCYRIXIII
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bool "CyrixIII/VIA-C3"
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help
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Select this for a Cyrix III or C3 chip. Presently Linux and GCC
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treat this chip as a generic 586. Whilst the CPU is 686 class,
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it lacks the cmov extension which gcc assumes is present when
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generating 686 code.
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Note that Nehemiah (Model 9) and above will not boot with this
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kernel due to them lacking the 3DNow! instructions used in earlier
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incarnations of the CPU.
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config MVIAC3_2
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bool "VIA C3-2 (Nehemiah)"
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help
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Select this for a VIA C3 "Nehemiah". Selecting this enables usage
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of SSE and tells gcc to treat the CPU as a 686.
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Note, this kernel will not boot on older (pre model 9) C3s.
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config MVIAC7
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bool "VIA C7"
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help
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Select this for a VIA C7. Selecting this uses the correct cache
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shift and tells gcc to treat the CPU as a 686.
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endchoice
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config X86_GENERIC
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bool "Generic x86 support"
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help
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Instead of just including optimizations for the selected
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x86 variant (e.g. PII, Crusoe or Athlon), include some more
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generic optimizations as well. This will make the kernel
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perform better on x86 CPUs other than that selected.
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This is really intended for distributors who need more
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generic optimizations.
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endif
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#
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# Define implied options from the CPU selection here
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#
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config X86_CMPXCHG
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bool
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depends on !M386
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default y
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config X86_L1_CACHE_SHIFT
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int
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default "7" if MPENTIUM4 || X86_GENERIC
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default "4" if X86_ELAN || M486 || M386 || MGEODEGX1
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default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX
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default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MVIAC7
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config X86_XADD
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bool
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depends on !M386
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default y
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config RWSEM_GENERIC_SPINLOCK
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bool
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depends on !X86_XADD
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default y
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config RWSEM_XCHGADD_ALGORITHM
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bool
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depends on X86_XADD
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default y
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config ARCH_HAS_ILOG2_U32
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bool
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default n
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config ARCH_HAS_ILOG2_U64
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bool
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default n
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config GENERIC_CALIBRATE_DELAY
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bool
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default y
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config X86_PPRO_FENCE
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bool
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depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
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default y
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config X86_F00F_BUG
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bool
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depends on M586MMX || M586TSC || M586 || M486 || M386
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default y
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config X86_WP_WORKS_OK
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bool
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depends on !M386
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default y
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config X86_INVLPG
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bool
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depends on !M386
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default y
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config X86_BSWAP
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bool
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depends on !M386
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default y
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config X86_POPAD_OK
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bool
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depends on !M386
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default y
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config X86_ALIGNMENT_16
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bool
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depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
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default y
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config X86_GOOD_APIC
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bool
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depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 || MVIAC7
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default y
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config X86_INTEL_USERCOPY
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bool
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depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2
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default y
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config X86_USE_PPRO_CHECKSUM
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bool
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depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MEFFICEON || MGEODE_LX || MCORE2
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default y
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config X86_USE_3DNOW
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bool
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depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML
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default y
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config X86_OOSTORE
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bool
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depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
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default y
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config X86_TSC
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bool
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depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ
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default y
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# this should be set for all -march=.. options where the compiler
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# generates cmov.
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config X86_CMOV
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bool
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depends on (MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7)
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default y
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config X86_MINIMUM_CPU_FAMILY
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int
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default "4" if X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK
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default "3"
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1321
arch/x86/Kconfig.i386
Normal file
1321
arch/x86/Kconfig.i386
Normal file
File diff suppressed because it is too large
Load Diff
844
arch/x86/Kconfig.x86_64
Normal file
844
arch/x86/Kconfig.x86_64
Normal file
@ -0,0 +1,844 @@
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#
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# For a description of the syntax of this configuration file,
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# see Documentation/kbuild/kconfig-language.txt.
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#
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# Note: ISA is disabled and will hopefully never be enabled.
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# If you managed to buy an ISA x86-64 box you'll have to fix all the
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# ISA drivers you need yourself.
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#
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mainmenu "Linux Kernel Configuration"
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config X86_64
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bool
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default y
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help
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Port to the x86-64 architecture. x86-64 is a 64-bit extension to the
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classical 32-bit x86 architecture. For details see
|
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<http://www.x86-64.org/>.
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config 64BIT
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def_bool y
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config X86
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bool
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default y
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config GENERIC_TIME
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bool
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default y
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config GENERIC_TIME_VSYSCALL
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bool
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default y
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||||
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config GENERIC_CMOS_UPDATE
|
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bool
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default y
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config CLOCKSOURCE_WATCHDOG
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bool
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default y
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||||
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config GENERIC_CLOCKEVENTS
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bool
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default y
|
||||
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config GENERIC_CLOCKEVENTS_BROADCAST
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bool
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default y
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config ZONE_DMA32
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bool
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||||
default y
|
||||
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config LOCKDEP_SUPPORT
|
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bool
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||||
default y
|
||||
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config STACKTRACE_SUPPORT
|
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bool
|
||||
default y
|
||||
|
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config SEMAPHORE_SLEEPERS
|
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bool
|
||||
default y
|
||||
|
||||
config MMU
|
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bool
|
||||
default y
|
||||
|
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config ZONE_DMA
|
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bool
|
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default y
|
||||
|
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config ISA
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bool
|
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config SBUS
|
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bool
|
||||
|
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config RWSEM_GENERIC_SPINLOCK
|
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bool
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default y
|
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|
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config RWSEM_XCHGADD_ALGORITHM
|
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bool
|
||||
|
||||
config GENERIC_HWEIGHT
|
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bool
|
||||
default y
|
||||
|
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config GENERIC_CALIBRATE_DELAY
|
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bool
|
||||
default y
|
||||
|
||||
config X86_CMPXCHG
|
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bool
|
||||
default y
|
||||
|
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config EARLY_PRINTK
|
||||
bool
|
||||
default y
|
||||
|
||||
config GENERIC_ISA_DMA
|
||||
bool
|
||||
default y
|
||||
|
||||
config GENERIC_IOMAP
|
||||
bool
|
||||
default y
|
||||
|
||||
config ARCH_MAY_HAVE_PC_FDC
|
||||
bool
|
||||
default y
|
||||
|
||||
config ARCH_POPULATES_NODE_MAP
|
||||
def_bool y
|
||||
|
||||
config DMI
|
||||
bool
|
||||
default y
|
||||
|
||||
config AUDIT_ARCH
|
||||
bool
|
||||
default y
|
||||
|
||||
config GENERIC_BUG
|
||||
bool
|
||||
default y
|
||||
depends on BUG
|
||||
|
||||
config ARCH_HAS_ILOG2_U32
|
||||
bool
|
||||
default n
|
||||
|
||||
config ARCH_HAS_ILOG2_U64
|
||||
bool
|
||||
default n
|
||||
|
||||
source "init/Kconfig"
|
||||
|
||||
|
||||
menu "Processor type and features"
|
||||
|
||||
source "kernel/time/Kconfig"
|
||||
|
||||
choice
|
||||
prompt "Subarchitecture Type"
|
||||
default X86_PC
|
||||
|
||||
config X86_PC
|
||||
bool "PC-compatible"
|
||||
help
|
||||
Choose this option if your computer is a standard PC or compatible.
|
||||
|
||||
config X86_VSMP
|
||||
bool "Support for ScaleMP vSMP"
|
||||
depends on 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
|
||||
if you have one of these machines.
|
||||
|
||||
endchoice
|
||||
|
||||
choice
|
||||
prompt "Processor family"
|
||||
default GENERIC_CPU
|
||||
|
||||
config MK8
|
||||
bool "AMD-Opteron/Athlon64"
|
||||
help
|
||||
Optimize for AMD Opteron/Athlon64/Hammer/K8 CPUs.
|
||||
|
||||
config MPSC
|
||||
bool "Intel P4 / older Netburst based Xeon"
|
||||
help
|
||||
Optimize for Intel Pentium 4, Pentium D and older Nocona/Dempsey
|
||||
Xeon CPUs with Intel 64bit which is compatible with x86-64.
|
||||
Note that the latest Xeons (Xeon 51xx and 53xx) are not based on the
|
||||
Netburst core and shouldn't use this option. You can distinguish them
|
||||
using the cpu family field
|
||||
in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one.
|
||||
|
||||
config MCORE2
|
||||
bool "Intel Core2 / newer Xeon"
|
||||
help
|
||||
Optimize for Intel Core2 and newer Xeons (51xx)
|
||||
You can distinguish the newer Xeons from the older ones using
|
||||
the cpu family field in /proc/cpuinfo. 15 is an older Xeon
|
||||
(use CONFIG_MPSC then), 6 is a newer one.
|
||||
|
||||
config GENERIC_CPU
|
||||
bool "Generic-x86-64"
|
||||
help
|
||||
Generic x86-64 CPU.
|
||||
Run equally well on all x86-64 CPUs.
|
||||
|
||||
endchoice
|
||||
|
||||
#
|
||||
# Define implied options from the CPU selection here
|
||||
#
|
||||
config X86_L1_CACHE_BYTES
|
||||
int
|
||||
default "128" if GENERIC_CPU || MPSC
|
||||
default "64" if MK8 || MCORE2
|
||||
|
||||
config X86_L1_CACHE_SHIFT
|
||||
int
|
||||
default "7" if GENERIC_CPU || MPSC
|
||||
default "6" if MK8 || MCORE2
|
||||
|
||||
config X86_INTERNODE_CACHE_BYTES
|
||||
int
|
||||
default "4096" if X86_VSMP
|
||||
default X86_L1_CACHE_BYTES if !X86_VSMP
|
||||
|
||||
config X86_TSC
|
||||
bool
|
||||
default y
|
||||
|
||||
config X86_GOOD_APIC
|
||||
bool
|
||||
default y
|
||||
|
||||
config MICROCODE
|
||||
tristate "/dev/cpu/microcode - Intel CPU microcode support"
|
||||
select FW_LOADER
|
||||
---help---
|
||||
If you say Y here the 'File systems' section, you will be
|
||||
able to update the microcode on Intel processors. 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/>.
|
||||
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called microcode.
|
||||
If you use modprobe or kmod you may also want to add the line
|
||||
'alias char-major-10-184 microcode' to your /etc/modules.conf file.
|
||||
|
||||
config MICROCODE_OLD_INTERFACE
|
||||
bool
|
||||
depends on MICROCODE
|
||||
default y
|
||||
|
||||
config X86_MSR
|
||||
tristate "/dev/cpu/*/msr - Model-specific register support"
|
||||
help
|
||||
This device gives privileged processes access to the x86
|
||||
Model-Specific Registers (MSRs). It is a character device with
|
||||
major 202 and minors 0 to 31 for /dev/cpu/0/msr to /dev/cpu/31/msr.
|
||||
MSR accesses are directed to a specific CPU on multi-processor
|
||||
systems.
|
||||
|
||||
config X86_CPUID
|
||||
tristate "/dev/cpu/*/cpuid - CPU information support"
|
||||
help
|
||||
This device gives processes access to the x86 CPUID instruction to
|
||||
be executed on a specific processor. It is a character device
|
||||
with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
|
||||
/dev/cpu/31/cpuid.
|
||||
|
||||
config X86_HT
|
||||
bool
|
||||
depends on SMP && !MK8
|
||||
default y
|
||||
|
||||
config MATH_EMULATION
|
||||
bool
|
||||
|
||||
config MCA
|
||||
bool
|
||||
|
||||
config EISA
|
||||
bool
|
||||
|
||||
config X86_IO_APIC
|
||||
bool
|
||||
default y
|
||||
|
||||
config X86_LOCAL_APIC
|
||||
bool
|
||||
default y
|
||||
|
||||
config MTRR
|
||||
bool "MTRR (Memory Type Range Register) support"
|
||||
---help---
|
||||
On Intel P6 family processors (Pentium Pro, Pentium II and later)
|
||||
the Memory Type Range Registers (MTRRs) may be used to control
|
||||
processor access to memory ranges. This is most useful if you have
|
||||
a video (VGA) card on a PCI or AGP bus. Enabling write-combining
|
||||
allows bus write transfers to be combined into a larger transfer
|
||||
before bursting over the PCI/AGP bus. This can increase performance
|
||||
of image write operations 2.5 times or more. Saying Y here creates a
|
||||
/proc/mtrr file which may be used to manipulate your processor's
|
||||
MTRRs. Typically the X server should use this.
|
||||
|
||||
This code has a reasonably generic interface so that similar
|
||||
control registers on other processors can be easily supported
|
||||
as well.
|
||||
|
||||
Saying Y here also fixes a problem with buggy SMP BIOSes which only
|
||||
set the MTRRs for the boot CPU and not for the secondary CPUs. This
|
||||
can lead to all sorts of problems, so it's good to say Y here.
|
||||
|
||||
Just say Y here, all x86-64 machines support MTRRs.
|
||||
|
||||
See <file:Documentation/mtrr.txt> for more information.
|
||||
|
||||
config SMP
|
||||
bool "Symmetric multi-processing support"
|
||||
---help---
|
||||
This enables support for systems with more than one CPU. If you have
|
||||
a system with only one CPU, like most personal computers, say N. If
|
||||
you have a system with more than one CPU, say Y.
|
||||
|
||||
If you say N here, the kernel will run on single and multiprocessor
|
||||
machines, but will use only one CPU of a multiprocessor machine. If
|
||||
you say Y here, the kernel will run on many, but not all,
|
||||
singleprocessor machines. On a singleprocessor machine, the kernel
|
||||
will run faster if you say N here.
|
||||
|
||||
If you don't know what to do here, say N.
|
||||
|
||||
config SCHED_SMT
|
||||
bool "SMT (Hyperthreading) scheduler support"
|
||||
depends on SMP
|
||||
default n
|
||||
help
|
||||
SMT scheduler support improves the CPU scheduler's decision making
|
||||
when dealing with Intel Pentium 4 chips with HyperThreading at a
|
||||
cost of slightly increased overhead in some places. If unsure say
|
||||
N here.
|
||||
|
||||
config SCHED_MC
|
||||
bool "Multi-core scheduler support"
|
||||
depends on SMP
|
||||
default y
|
||||
help
|
||||
Multi-core scheduler support improves the CPU scheduler's decision
|
||||
making when dealing with multi-core CPU chips at a cost of slightly
|
||||
increased overhead in some places. If unsure say N here.
|
||||
|
||||
source "kernel/Kconfig.preempt"
|
||||
|
||||
config NUMA
|
||||
bool "Non Uniform Memory Access (NUMA) Support"
|
||||
depends on SMP
|
||||
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.
|
||||
This code is recommended on all multiprocessor Opteron systems.
|
||||
If the system is EM64T, you should say N unless your system is EM64T
|
||||
NUMA.
|
||||
|
||||
config K8_NUMA
|
||||
bool "Old style AMD Opteron NUMA detection"
|
||||
depends on NUMA && PCI
|
||||
default y
|
||||
help
|
||||
Enable K8 NUMA node topology detection. You should say Y here if
|
||||
you have a multi processor AMD K8 system. This uses an old
|
||||
method to read the NUMA configuration directly from the builtin
|
||||
Northbridge of Opteron. It is recommended to use X86_64_ACPI_NUMA
|
||||
instead, which also takes priority if both are compiled in.
|
||||
|
||||
config NODES_SHIFT
|
||||
int
|
||||
default "6"
|
||||
depends on NEED_MULTIPLE_NODES
|
||||
|
||||
# Dummy CONFIG option to select ACPI_NUMA from drivers/acpi/Kconfig.
|
||||
|
||||
config X86_64_ACPI_NUMA
|
||||
bool "ACPI NUMA detection"
|
||||
depends on NUMA
|
||||
select ACPI
|
||||
select PCI
|
||||
select ACPI_NUMA
|
||||
default y
|
||||
help
|
||||
Enable ACPI SRAT based node topology detection.
|
||||
|
||||
config NUMA_EMU
|
||||
bool "NUMA emulation"
|
||||
depends on NUMA
|
||||
help
|
||||
Enable NUMA emulation. A flat machine will be split
|
||||
into virtual nodes when booted with "numa=fake=N", where N is the
|
||||
number of nodes. This is only useful for debugging.
|
||||
|
||||
config ARCH_DISCONTIGMEM_ENABLE
|
||||
bool
|
||||
depends on NUMA
|
||||
default y
|
||||
|
||||
config ARCH_DISCONTIGMEM_DEFAULT
|
||||
def_bool y
|
||||
depends on NUMA
|
||||
|
||||
config ARCH_SPARSEMEM_ENABLE
|
||||
def_bool y
|
||||
depends on (NUMA || EXPERIMENTAL)
|
||||
select SPARSEMEM_VMEMMAP_ENABLE
|
||||
|
||||
config ARCH_MEMORY_PROBE
|
||||
def_bool y
|
||||
depends on MEMORY_HOTPLUG
|
||||
|
||||
config ARCH_FLATMEM_ENABLE
|
||||
def_bool y
|
||||
depends on !NUMA
|
||||
|
||||
source "mm/Kconfig"
|
||||
|
||||
config MEMORY_HOTPLUG_RESERVE
|
||||
def_bool y
|
||||
depends on (MEMORY_HOTPLUG && DISCONTIGMEM)
|
||||
|
||||
config HAVE_ARCH_EARLY_PFN_TO_NID
|
||||
def_bool y
|
||||
depends on NUMA
|
||||
|
||||
config OUT_OF_LINE_PFN_TO_PAGE
|
||||
def_bool y
|
||||
depends on DISCONTIGMEM
|
||||
|
||||
config NR_CPUS
|
||||
int "Maximum number of CPUs (2-255)"
|
||||
range 2 255
|
||||
depends on SMP
|
||||
default "8"
|
||||
help
|
||||
This allows you to specify the maximum number of CPUs which this
|
||||
kernel will support. Current maximum is 255 CPUs due to
|
||||
APIC addressing limits. Less depending on the hardware.
|
||||
|
||||
This is purely to save memory - each supported CPU requires
|
||||
memory in the static kernel configuration.
|
||||
|
||||
config PHYSICAL_ALIGN
|
||||
hex
|
||||
default "0x200000"
|
||||
|
||||
config HOTPLUG_CPU
|
||||
bool "Support for suspend on SMP and hot-pluggable CPUs (EXPERIMENTAL)"
|
||||
depends on SMP && HOTPLUG && EXPERIMENTAL
|
||||
help
|
||||
Say Y here to experiment with turning CPUs off and on. CPUs
|
||||
can be controlled through /sys/devices/system/cpu/cpu#.
|
||||
This is also required for suspend/hibernation on SMP systems.
|
||||
|
||||
Say N if you want to disable CPU hotplug and don't need to
|
||||
suspend.
|
||||
|
||||
config ARCH_ENABLE_MEMORY_HOTPLUG
|
||||
def_bool y
|
||||
|
||||
config HPET_TIMER
|
||||
bool
|
||||
default y
|
||||
help
|
||||
Use the IA-PC HPET (High Precision Event Timer) to manage
|
||||
time in preference to the PIT and RTC, if a HPET is
|
||||
present. 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>.
|
||||
|
||||
config HPET_EMULATE_RTC
|
||||
bool
|
||||
depends on HPET_TIMER && RTC=y
|
||||
default y
|
||||
|
||||
# Mark as embedded because too many people got it wrong.
|
||||
# The code disables itself when not needed.
|
||||
config IOMMU
|
||||
bool "IOMMU support" if EMBEDDED
|
||||
default y
|
||||
select SWIOTLB
|
||||
select AGP
|
||||
depends on PCI
|
||||
help
|
||||
Support for full DMA access of devices with 32bit memory access only
|
||||
on systems with more than 3GB. This is usually needed for USB,
|
||||
sound, many IDE/SATA chipsets and some other devices.
|
||||
Provides a driver for the AMD Athlon64/Opteron/Turion/Sempron GART
|
||||
based hardware IOMMU and a software bounce buffer based IOMMU used
|
||||
on Intel systems and as fallback.
|
||||
The code is only active when needed (enough memory and limited
|
||||
device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
|
||||
too.
|
||||
|
||||
config CALGARY_IOMMU
|
||||
bool "IBM Calgary IOMMU support"
|
||||
select SWIOTLB
|
||||
depends on PCI && EXPERIMENTAL
|
||||
help
|
||||
Support for hardware IOMMUs in IBM's xSeries x366 and x460
|
||||
systems. Needed to run systems with more than 3GB of memory
|
||||
properly with 32-bit PCI devices that do not support DAC
|
||||
(Double Address Cycle). Calgary also supports bus level
|
||||
isolation, where all DMAs pass through the IOMMU. This
|
||||
prevents them from going anywhere except their intended
|
||||
destination. This catches hard-to-find kernel bugs and
|
||||
mis-behaving drivers and devices that do not use the DMA-API
|
||||
properly to set up their DMA buffers. The IOMMU can be
|
||||
turned off at boot time with the iommu=off parameter.
|
||||
Normally the kernel will make the right choice by itself.
|
||||
If unsure, say Y.
|
||||
|
||||
config CALGARY_IOMMU_ENABLED_BY_DEFAULT
|
||||
bool "Should Calgary be enabled by default?"
|
||||
default y
|
||||
depends on CALGARY_IOMMU
|
||||
help
|
||||
Should Calgary be enabled by default? if you choose 'y', Calgary
|
||||
will be used (if it exists). If you choose 'n', Calgary will not be
|
||||
used even if it exists. If you choose 'n' and would like to use
|
||||
Calgary anyway, pass 'iommu=calgary' on the kernel command line.
|
||||
If unsure, say Y.
|
||||
|
||||
# need this always selected by IOMMU for the VIA workaround
|
||||
config SWIOTLB
|
||||
bool
|
||||
help
|
||||
Support for software bounce buffers used on x86-64 systems
|
||||
which don't have a hardware IOMMU (e.g. the current generation
|
||||
of Intel's x86-64 CPUs). Using this PCI devices which can only
|
||||
access 32-bits of memory can be used on systems with more than
|
||||
3 GB of memory. If unsure, say Y.
|
||||
|
||||
config X86_MCE
|
||||
bool "Machine check support" if EMBEDDED
|
||||
default y
|
||||
help
|
||||
Include a machine check error handler to report hardware errors.
|
||||
This version will require the mcelog utility to decode some
|
||||
machine check error logs. See
|
||||
ftp://ftp.x86-64.org/pub/linux/tools/mcelog
|
||||
|
||||
config X86_MCE_INTEL
|
||||
bool "Intel MCE features"
|
||||
depends on X86_MCE && X86_LOCAL_APIC
|
||||
default y
|
||||
help
|
||||
Additional support for intel specific MCE features such as
|
||||
the thermal monitor.
|
||||
|
||||
config X86_MCE_AMD
|
||||
bool "AMD MCE features"
|
||||
depends on X86_MCE && X86_LOCAL_APIC
|
||||
default y
|
||||
help
|
||||
Additional support for AMD specific MCE features such as
|
||||
the DRAM Error Threshold.
|
||||
|
||||
config KEXEC
|
||||
bool "kexec system call"
|
||||
help
|
||||
kexec is a system call that implements the ability to shutdown your
|
||||
current kernel, and to start another kernel. It is like a reboot
|
||||
but it is independent of the system firmware. And like a reboot
|
||||
you can start any kernel with it, not just Linux.
|
||||
|
||||
The name comes from the similarity to the exec system call.
|
||||
|
||||
It is an ongoing process to be certain the hardware in a machine
|
||||
is properly shutdown, so do not be surprised if this code does not
|
||||
initially work for you. It may help to enable device hotplugging
|
||||
support. As of this writing the exact hardware interface is
|
||||
strongly in flux, so no good recommendation can be made.
|
||||
|
||||
config CRASH_DUMP
|
||||
bool "kernel crash dumps (EXPERIMENTAL)"
|
||||
depends on EXPERIMENTAL
|
||||
help
|
||||
Generate crash dump after being started by kexec.
|
||||
This should be normally only set in special crash dump kernels
|
||||
which are loaded in the main kernel with kexec-tools into
|
||||
a specially reserved region and then later executed after
|
||||
a crash by kdump/kexec. The crash dump kernel must be compiled
|
||||
to a memory address not used by the main kernel or BIOS using
|
||||
PHYSICAL_START, or it must be built as a relocatable image
|
||||
(CONFIG_RELOCATABLE=y).
|
||||
For more details see Documentation/kdump/kdump.txt
|
||||
|
||||
config RELOCATABLE
|
||||
bool "Build a relocatable kernel (EXPERIMENTAL)"
|
||||
depends on EXPERIMENTAL
|
||||
help
|
||||
Builds a relocatable kernel. This enables loading and running
|
||||
a kernel binary from a different physical address than it has
|
||||
been compiled for.
|
||||
|
||||
One use is for the kexec on panic case where the recovery kernel
|
||||
must live at a different physical address than the primary
|
||||
kernel.
|
||||
|
||||
Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
|
||||
it has been loaded at and the compile time physical address
|
||||
(CONFIG_PHYSICAL_START) is ignored.
|
||||
|
||||
config PHYSICAL_START
|
||||
hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
|
||||
default "0x200000"
|
||||
help
|
||||
This gives the physical address where the kernel is loaded. It
|
||||
should be aligned to 2MB boundary.
|
||||
|
||||
If kernel is a not relocatable (CONFIG_RELOCATABLE=n) then
|
||||
bzImage will decompress itself to above physical address and
|
||||
run from there. Otherwise, bzImage will run from the address where
|
||||
it has been loaded by the boot loader and will ignore above physical
|
||||
address.
|
||||
|
||||
In normal kdump cases one does not have to set/change this option
|
||||
as now bzImage can be compiled as a completely relocatable image
|
||||
(CONFIG_RELOCATABLE=y) and be used to load and run from a different
|
||||
address. This option is mainly useful for the folks who don't want
|
||||
to use a bzImage for capturing the crash dump and want to use a
|
||||
vmlinux instead.
|
||||
|
||||
So if you are using bzImage for capturing the crash dump, leave
|
||||
the value here unchanged to 0x200000 and set CONFIG_RELOCATABLE=y.
|
||||
Otherwise if you plan to use vmlinux for capturing the crash dump
|
||||
change this value to start of the reserved region (Typically 16MB
|
||||
0x1000000). In other words, it can be set based on the "X" value as
|
||||
specified in the "crashkernel=YM@XM" command line boot parameter
|
||||
passed to the panic-ed kernel. Typically this parameter is set as
|
||||
crashkernel=64M@16M. Please take a look at
|
||||
Documentation/kdump/kdump.txt for more details about crash dumps.
|
||||
|
||||
Usage of bzImage for capturing the crash dump is advantageous as
|
||||
one does not have to build two kernels. Same kernel can be used
|
||||
as production kernel and capture kernel.
|
||||
|
||||
Don't change this unless you know what you are doing.
|
||||
|
||||
config SECCOMP
|
||||
bool "Enable seccomp to safely compute untrusted bytecode"
|
||||
depends on PROC_FS
|
||||
default y
|
||||
help
|
||||
This kernel feature is useful for number crunching applications
|
||||
that may need to compute untrusted bytecode during their
|
||||
execution. By using pipes or other transports made available to
|
||||
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
|
||||
and the task is only allowed to execute a few safe syscalls
|
||||
defined by each seccomp mode.
|
||||
|
||||
If unsure, say Y. Only embedded should say N here.
|
||||
|
||||
config CC_STACKPROTECTOR
|
||||
bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
|
||||
depends on EXPERIMENTAL
|
||||
help
|
||||
This option turns on the -fstack-protector GCC feature. This
|
||||
feature puts, at the beginning of critical functions, a canary
|
||||
value on the stack just before the return address, and validates
|
||||
the value just before actually returning. Stack based buffer
|
||||
overflows (that need to overwrite this return address) now also
|
||||
overwrite the canary, which gets detected and the attack is then
|
||||
neutralized via a kernel panic.
|
||||
|
||||
This feature requires gcc version 4.2 or above, or a distribution
|
||||
gcc with the feature backported. Older versions are automatically
|
||||
detected and for those versions, this configuration option is ignored.
|
||||
|
||||
config CC_STACKPROTECTOR_ALL
|
||||
bool "Use stack-protector for all functions"
|
||||
depends on CC_STACKPROTECTOR
|
||||
help
|
||||
Normally, GCC only inserts the canary value protection for
|
||||
functions that use large-ish on-stack buffers. By enabling
|
||||
this option, GCC will be asked to do this for ALL functions.
|
||||
|
||||
source kernel/Kconfig.hz
|
||||
|
||||
config K8_NB
|
||||
def_bool y
|
||||
depends on AGP_AMD64 || IOMMU || (PCI && NUMA)
|
||||
|
||||
endmenu
|
||||
|
||||
#
|
||||
# Use the generic interrupt handling code in kernel/irq/:
|
||||
#
|
||||
config GENERIC_HARDIRQS
|
||||
bool
|
||||
default y
|
||||
|
||||
config GENERIC_IRQ_PROBE
|
||||
bool
|
||||
default y
|
||||
|
||||
# we have no ISA slots, but we do have ISA-style DMA.
|
||||
config ISA_DMA_API
|
||||
bool
|
||||
default y
|
||||
|
||||
config GENERIC_PENDING_IRQ
|
||||
bool
|
||||
depends on GENERIC_HARDIRQS && SMP
|
||||
default y
|
||||
|
||||
menu "Power management options"
|
||||
|
||||
source kernel/power/Kconfig
|
||||
|
||||
config ARCH_HIBERNATION_HEADER
|
||||
bool
|
||||
depends on HIBERNATION
|
||||
default y
|
||||
|
||||
source "drivers/acpi/Kconfig"
|
||||
|
||||
source "arch/x86/kernel/cpu/cpufreq/Kconfig_64"
|
||||
|
||||
source "drivers/cpuidle/Kconfig"
|
||||
|
||||
endmenu
|
||||
|
||||
menu "Bus options (PCI etc.)"
|
||||
|
||||
config PCI
|
||||
bool "PCI support"
|
||||
select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)
|
||||
|
||||
# x86-64 doesn't support PCI BIOS access from long mode so always go direct.
|
||||
config PCI_DIRECT
|
||||
bool
|
||||
depends on PCI
|
||||
default y
|
||||
|
||||
config PCI_MMCONFIG
|
||||
bool "Support mmconfig PCI config space access"
|
||||
depends on PCI && ACPI
|
||||
|
||||
config PCI_DOMAINS
|
||||
bool
|
||||
depends on PCI
|
||||
default y
|
||||
|
||||
config DMAR
|
||||
bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
|
||||
depends on PCI_MSI && ACPI && EXPERIMENTAL
|
||||
default y
|
||||
help
|
||||
DMA remapping (DMAR) devices support enables independent address
|
||||
translations for Direct Memory Access (DMA) from devices.
|
||||
These DMA remapping devices are reported via ACPI tables
|
||||
and include PCI device scope covered by these DMA
|
||||
remapping devices.
|
||||
|
||||
config DMAR_GFX_WA
|
||||
bool "Support for Graphics workaround"
|
||||
depends on DMAR
|
||||
default y
|
||||
help
|
||||
Current Graphics drivers tend to use physical address
|
||||
for DMA and avoid using DMA APIs. Setting this config
|
||||
option permits the IOMMU driver to set a unity map for
|
||||
all the OS-visible memory. Hence the driver can continue
|
||||
to use physical addresses for DMA.
|
||||
|
||||
config DMAR_FLOPPY_WA
|
||||
bool
|
||||
depends on DMAR
|
||||
default y
|
||||
help
|
||||
Floppy disk drivers are know to bypass DMA API calls
|
||||
thereby failing to work when IOMMU is enabled. This
|
||||
workaround will setup a 1:1 mapping for the first
|
||||
16M to make floppy (an ISA device) work.
|
||||
|
||||
source "drivers/pci/pcie/Kconfig"
|
||||
|
||||
source "drivers/pci/Kconfig"
|
||||
|
||||
source "drivers/pcmcia/Kconfig"
|
||||
|
||||
source "drivers/pci/hotplug/Kconfig"
|
||||
|
||||
endmenu
|
||||
|
||||
|
||||
menu "Executable file formats / Emulations"
|
||||
|
||||
source "fs/Kconfig.binfmt"
|
||||
|
||||
config IA32_EMULATION
|
||||
bool "IA32 Emulation"
|
||||
help
|
||||
Include code to run 32-bit programs under a 64-bit kernel. You should
|
||||
likely turn this on, unless you're 100% sure that you don't have any
|
||||
32-bit programs left.
|
||||
|
||||
config IA32_AOUT
|
||||
tristate "IA32 a.out support"
|
||||
depends on IA32_EMULATION
|
||||
help
|
||||
Support old a.out binaries in the 32bit emulation.
|
||||
|
||||
config COMPAT
|
||||
bool
|
||||
depends on IA32_EMULATION
|
||||
default y
|
||||
|
||||
config COMPAT_FOR_U64_ALIGNMENT
|
||||
def_bool COMPAT
|
||||
|
||||
config SYSVIPC_COMPAT
|
||||
bool
|
||||
depends on COMPAT && SYSVIPC
|
||||
default y
|
||||
|
||||
endmenu
|
||||
|
||||
source "net/Kconfig"
|
||||
|
||||
source drivers/Kconfig
|
||||
|
||||
source "drivers/firmware/Kconfig"
|
||||
|
||||
source fs/Kconfig
|
||||
|
||||
source "kernel/Kconfig.instrumentation"
|
||||
|
||||
source "arch/x86/Kconfig.debug"
|
||||
|
||||
source "security/Kconfig"
|
||||
|
||||
source "crypto/Kconfig"
|
||||
|
||||
source "lib/Kconfig"
|
||||
Reference in New Issue
Block a user