x86, 386 removal: Remove CONFIG_M386 from Kconfig

Remove the CONFIG_M386 symbol from Kconfig so that it cannot be
selected.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-2-git-send-email-hpa@linux.intel.com

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