diff options
Diffstat (limited to 'arch/x86/Kconfig.cpu')
| -rw-r--r-- | arch/x86/Kconfig.cpu | 58 |
1 files changed, 23 insertions, 35 deletions
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index f3b86d0df44e..36a07ebf2240 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -4,23 +4,24 @@ choice default M686 if X86_32 default GENERIC_CPU if X86_64 -config M386 - bool "386" - depends on X86_32 && !UML +config M486 + bool "486" + depends on X86_32 ---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. + 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 supported x86 CPU types (albeit not + optimally fast), you can specify "486" here. + + Note that the 386 is no longer supported, this includes + AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI 486DLC/DLC2, + and UMC 486SX-S. 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, and UMC 486SX-S. 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 @@ -43,16 +44,7 @@ config M386 - "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. + If you don't know what to do, choose "486". config M586 bool "586/K5/5x86/6x86/6x86MX" @@ -307,22 +299,20 @@ config X86_INTERNODE_CACHE_SHIFT config X86_CMPXCHG def_bool y - depends on X86_64 || (X86_32 && !M386) config X86_L1_CACHE_SHIFT int default "7" if MPENTIUM4 || MPSC default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU - default "4" if MELAN || M486 || M386 || MGEODEGX1 + default "4" if MELAN || M486 || MGEODEGX1 default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX config X86_XADD def_bool y - depends on !M386 config X86_PPRO_FENCE bool "PentiumPro memory ordering errata workaround" - depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1 + depends on M686 || M586MMX || M586TSC || M586 || M486 || MGEODEGX1 ---help--- Old PentiumPro multiprocessor systems had errata that could cause memory operations to violate the x86 ordering standard in rare cases. @@ -335,27 +325,26 @@ config X86_PPRO_FENCE config X86_F00F_BUG def_bool y - depends on M586MMX || M586TSC || M586 || M486 || M386 + depends on M586MMX || M586TSC || M586 || M486 config X86_INVD_BUG def_bool y - depends on M486 || M386 + depends on M486 config X86_WP_WORKS_OK def_bool y - depends on !M386 config X86_INVLPG def_bool y - depends on X86_32 && !M386 + depends on X86_32 config X86_BSWAP def_bool y - depends on X86_32 && !M386 + depends on X86_32 config X86_POPAD_OK def_bool y - depends on X86_32 && !M386 + depends on X86_32 config X86_ALIGNMENT_16 def_bool y @@ -412,12 +401,11 @@ config X86_MINIMUM_CPU_FAMILY default "64" if X86_64 default "6" if X86_32 && X86_P6_NOP default "5" if X86_32 && X86_CMPXCHG64 - default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK) - default "3" + default "4" config X86_DEBUGCTLMSR def_bool y - depends on !(MK6 || MWINCHIPC6 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486 || M386) && !UML + depends on !(MK6 || MWINCHIPC6 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486) && !UML menuconfig PROCESSOR_SELECT bool "Supported processor vendors" if EXPERT @@ -441,7 +429,7 @@ config CPU_SUP_INTEL config CPU_SUP_CYRIX_32 default y bool "Support Cyrix processors" if PROCESSOR_SELECT - depends on M386 || M486 || M586 || M586TSC || M586MMX || (EXPERT && !64BIT) + depends on M486 || M586 || M586TSC || M586MMX || (EXPERT && !64BIT) ---help--- This enables detection, tunings and quirks for Cyrix processors @@ -495,7 +483,7 @@ config CPU_SUP_TRANSMETA_32 config CPU_SUP_UMC_32 default y bool "Support UMC processors" if PROCESSOR_SELECT - depends on M386 || M486 || (EXPERT && !64BIT) + depends on M486 || (EXPERT && !64BIT) ---help--- This enables detection, tunings and quirks for UMC processors |