Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

# Put here option for CPU selection and depending optimization
if !X86_ELAN

choice
        prompt "Processor family"
        default M686 if X86_32
        default GENERIC_CPU if X86_64

config M386
        bool "386"
        depends on X86_32 && !UML
        ---help---
          This is the processor type of your CPU. This information is used for
          optimizing purposes. In order to compile a kernel that can run on
          all x86 CPU types (albeit not optimally fast), you can specify
          "386" here.

          The kernel will not necessarily run on earlier architectures than
          the one you have chosen, e.g. a Pentium optimized kernel will run on
          a PPro, but not necessarily on a i486.

          Here are the settings recommended for greatest speed:
          - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
          486DLC/DLC2, UMC 486SX-S and NexGen Nx586.  Only "386" kernels
          will run on a 386 class machine.
          - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
          SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
          - "586" for generic Pentium CPUs lacking the TSC
          (time stamp counter) register.
          - "Pentium-Classic" for the Intel Pentium.
          - "Pentium-MMX" for the Intel Pentium MMX.
          - "Pentium-Pro" for the Intel Pentium Pro.
          - "Pentium-II" for the Intel Pentium II or pre-Coppermine Celeron.
          - "Pentium-III" for the Intel Pentium III or Coppermine Celeron.
          - "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
          - "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
          - "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
          - "Crusoe" for the Transmeta Crusoe series.
          - "Efficeon" for the Transmeta Efficeon series.
          - "Winchip-C6" for original IDT Winchip.
          - "Winchip-2" for IDT Winchip 2.
          - "Winchip-2A" for IDT Winchips with 3dNow! capabilities.
          - "GeodeGX1" for Geode GX1 (Cyrix MediaGX).
          - "Geode GX/LX" For AMD Geode GX and LX processors.
          - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
          - "VIA C3-2" for VIA C3-2 "Nehemiah" (model 9 and above).
          - "VIA C7" for VIA C7.

          If you don't know what to do, choose "386".

config M486
        bool "486"
        depends on X86_32
        help
          Select this for a 486 series processor, either Intel or one of the
          compatible processors from AMD, Cyrix, IBM, or Intel.  Includes DX,
          DX2, and DX4 variants; also SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or
          U5S.

config M586
        bool "586/K5/5x86/6x86/6x86MX"
        depends on X86_32
        help
          Select this for an 586 or 686 series processor such as the AMD K5,
          the Cyrix 5x86, 6x86 and 6x86MX.  This choice does not
          assume the RDTSC (Read Time Stamp Counter) instruction.

config M586TSC
        bool "Pentium-Classic"
        depends on X86_32
        help
          Select this for a Pentium Classic processor with the RDTSC (Read
          Time Stamp Counter) instruction for benchmarking.

config M586MMX
        bool "Pentium-MMX"
        depends on X86_32
        help
          Select this for a Pentium with the MMX graphics/multimedia
          extended instructions.

config M686
        bool "Pentium-Pro"
        depends on X86_32
        help
          Select this for Intel Pentium Pro chips.  This enables the use of
          Pentium Pro extended instructions, and disables the init-time guard
          against the f00f bug found in earlier Pentiums.

config MPENTIUMII
        bool "Pentium-II/Celeron(pre-Coppermine)"
        depends on X86_32
        help
          Select this for Intel chips based on the Pentium-II and
          pre-Coppermine Celeron core.  This option enables an unaligned
          copy optimization, compiles the kernel with optimization flags
          tailored for the chip, and applies any applicable Pentium Pro
          optimizations.

config MPENTIUMIII
        bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
        depends on X86_32
        help
          Select this for Intel chips based on the Pentium-III and
          Celeron-Coppermine core.  This option enables use of some
          extended prefetch instructions in addition to the Pentium II
          extensions.

config MPENTIUMM
        bool "Pentium M"
        depends on X86_32
        help
          Select this for Intel Pentium M (not Pentium-4 M)
          notebook chips.

config MPENTIUM4
        bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/older Xeon"
        depends on X86_32
        help
          Select this for Intel Pentium 4 chips.  This includes the
          Pentium 4, Pentium D, P4-based Celeron and Xeon, and
          Pentium-4 M (not Pentium M) chips.  This option enables compile
          flags optimized for the chip, uses the correct cache line size, and
          applies any applicable optimizations.

          CPUIDs: F[0-6][1-A] (in /proc/cpuinfo show = cpu family : 15 )

          Select this for:
            Pentiums (Pentium 4, Pentium D, Celeron, Celeron D) corename:
                -Willamette
                -Northwood
                -Mobile Pentium 4
                -Mobile Pentium 4 M
                -Extreme Edition (Gallatin)
                -Prescott
                -Prescott 2M
                -Cedar Mill
                -Presler
                -Smithfiled
            Xeons (Intel Xeon, Xeon MP, Xeon LV, Xeon MV) corename:
                -Foster
                -Prestonia
                -Gallatin
                -Nocona
                -Irwindale
                -Cranford
                -Potomac
                -Paxville
                -Dempsey


config MK6
        bool "K6/K6-II/K6-III"
        depends on X86_32
        help
          Select this for an AMD K6-family processor.  Enables use of
          some extended instructions, and passes appropriate optimization
          flags to GCC.

config MK7
        bool "Athlon/Duron/K7"
        depends on X86_32
        help
          Select this for an AMD Athlon K7-family processor.  Enables use of
          some extended instructions, and passes appropriate optimization
          flags to GCC.

config MK8
        bool "Opteron/Athlon64/Hammer/K8"
        help
          Select this for an AMD Opteron or Athlon64 Hammer-family processor.  Enables
          use of some extended instructions, and passes appropriate optimization
          flags to GCC.

config MCRUSOE
        bool "Crusoe"
        depends on X86_32
        help
          Select this for a Transmeta Crusoe processor.  Treats the processor
          like a 586 with TSC, and sets some GCC optimization flags (like a
          Pentium Pro with no alignment requirements).

config MEFFICEON
        bool "Efficeon"
        depends on X86_32
        help
          Select this for a Transmeta Efficeon processor.

config MWINCHIPC6
        bool "Winchip-C6"
        depends on X86_32
        help
          Select this for an IDT Winchip C6 chip.  Linux and GCC
          treat this chip as a 586TSC with some extended instructions
          and alignment requirements.

config MWINCHIP2
        bool "Winchip-2"
        depends on X86_32
        help
          Select this for an IDT Winchip-2.  Linux and GCC
          treat this chip as a 586TSC with some extended instructions
          and alignment requirements.

config MWINCHIP3D
        bool "Winchip-2A/Winchip-3"
        depends on X86_32
        help
          Select this for an IDT Winchip-2A or 3.  Linux and GCC
          treat this chip as a 586TSC with some extended instructions
          and alignment requirements.  Also enable out of order memory
          stores for this CPU, which can increase performance of some
          operations.

config MGEODEGX1
        bool "GeodeGX1"
        depends on X86_32
        help
          Select this for a Geode GX1 (Cyrix MediaGX) chip.

config MGEODE_LX
       bool "Geode GX/LX"
        depends on X86_32
       help
         Select this for AMD Geode GX and LX processors.

config MCYRIXIII
        bool "CyrixIII/VIA-C3"
        depends on X86_32
        help
          Select this for a Cyrix III or C3 chip.  Presently Linux and GCC
          treat this chip as a generic 586. Whilst the CPU is 686 class,
          it lacks the cmov extension which gcc assumes is present when
          generating 686 code.
          Note that Nehemiah (Model 9) and above will not boot with this
          kernel due to them lacking the 3DNow! instructions used in earlier
          incarnations of the CPU.

config MVIAC3_2
        bool "VIA C3-2 (Nehemiah)"
        depends on X86_32
        help
          Select this for a VIA C3 "Nehemiah". Selecting this enables usage
          of SSE and tells gcc to treat the CPU as a 686.
          Note, this kernel will not boot on older (pre model 9) C3s.

config MVIAC7
        bool "VIA C7"
        depends on X86_32
        help
          Select this for a VIA C7.  Selecting this uses the correct cache
          shift and tells gcc to treat the CPU as a 686.

config MPSC
        bool "Intel P4 / older Netburst based Xeon"
        depends on X86_64
        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 "Core 2/newer Xeon"
        help
          Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and 53xx)
          CPUs. You can distinguish newer from older Xeons by the CPU family
          in /proc/cpuinfo. Newer ones have 6 and older ones 15 (not a typo)

config GENERIC_CPU
        bool "Generic-x86-64"
        depends on X86_64
        help
          Generic x86-64 CPU.
          Run equally well on all x86-64 CPUs.

endchoice

config X86_GENERIC
        bool "Generic x86 support"
        depends on X86_32
        help
          Instead of just including optimizations for the selected
          x86 variant (e.g. PII, Crusoe or Athlon), include some more
          generic optimizations as well. This will make the kernel
          perform better on x86 CPUs other than that selected.

          This is really intended for distributors who need more
          generic optimizations.

endif

#
# 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
        depends on X86_64

config X86_INTERNODE_CACHE_BYTES
        int
        default "4096" if X86_VSMP
        default X86_L1_CACHE_BYTES if !X86_VSMP
        depends on X86_64

config X86_CMPXCHG
        def_bool X86_64 || (X86_32 && !M386)

config X86_L1_CACHE_SHIFT
        int
        default "7" if MPENTIUM4 || X86_GENERIC || GENERIC_CPU || MPSC
        default "4" if X86_ELAN || M486 || M386 || MGEODEGX1
        default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX
        default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MVIAC7

config X86_XADD
        bool
        depends on X86_32 && !M386
        default y

config X86_PPRO_FENCE
        bool
        depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
        default y

config X86_F00F_BUG
        bool
        depends on M586MMX || M586TSC || M586 || M486 || M386
        default y

config X86_WP_WORKS_OK
        bool
        depends on X86_32 && !M386
        default y

config X86_INVLPG
        bool
        depends on X86_32 && !M386
        default y

config X86_BSWAP
        bool
        depends on X86_32 && !M386
        default y

config X86_POPAD_OK
        bool
        depends on X86_32 && !M386
        default y

config X86_ALIGNMENT_16
        bool
        depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
        default y

config X86_GOOD_APIC
        bool
        depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 || MVIAC7 || X86_64
        default y

config X86_INTEL_USERCOPY
        bool
        depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2
        default y

config X86_USE_PPRO_CHECKSUM
        bool
        depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MEFFICEON || MGEODE_LX || MCORE2
        default y

config X86_USE_3DNOW
        bool
        depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML
        default y

config X86_OOSTORE
        bool
        depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
        default y

config X86_TSC
        bool
        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) || X86_64
        default y

# this should be set for all -march=.. options where the compiler
# generates cmov.
config X86_CMOV
        bool
        depends on (MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7)
        default y

config X86_MINIMUM_CPU_FAMILY
        int
        default "64" if X86_64
        default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK)
        default "3"