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

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 46c3bff3ced20e31c379bdde1c9a50c95206ff8e..a1a662721f8065b683347443059521cae16db6b7 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -69,8 +69,8 @@ config X86
        select HAVE_PERF_USER_STACK_DUMP
        select HAVE_DEBUG_KMEMLEAK
        select ANON_INODES
-       select HAVE_ALIGNED_STRUCT_PAGE if SLUB && !M386
-       select HAVE_CMPXCHG_LOCAL if !M386
+       select HAVE_ALIGNED_STRUCT_PAGE if SLUB
+       select HAVE_CMPXCHG_LOCAL
        select HAVE_CMPXCHG_DOUBLE
        select HAVE_ARCH_KMEMCHECK
        select HAVE_USER_RETURN_NOTIFIER
@@ -1100,7 +1100,7 @@ config HIGHMEM4G
 
 config HIGHMEM64G
        bool "64GB"
-       depends on !M386 && !M486
+       depends on !M486
        select X86_PAE
        ---help---
          Select this if you have a 32-bit processor and more than 4

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index f3b86d0df44ee6487cb26a8b105b944b03361b74..36a07ebf2240635a4d00ee71eeb250096515c01f 100644 (file)
--- 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
 

diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu
index 86cee7b749e1bc387522752ba2a5f200ccc172c0..6647ed49c66c9789b7e0d37286653021a6fc7d4c 100644 (file)
--- a/arch/x86/Makefile_32.cpu
+++ b/arch/x86/Makefile_32.cpu
@@ -10,7 +10,6 @@ tune          = $(call cc-option,-mcpu=$(1),$(2))
 endif
 
 align := $(cc-option-align)
-cflags-$(CONFIG_M386)          += -march=i386
 cflags-$(CONFIG_M486)          += -march=i486
 cflags-$(CONFIG_M586)          += -march=i586
 cflags-$(CONFIG_M586TSC)       += -march=i586

diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
index 9eae7752ae9b3dc80b970222d5606de302d07e6d..e3b7819caeef1c813c309c04519af9ef93183a9a 100644 (file)
--- a/arch/x86/include/asm/module.h
+++ b/arch/x86/include/asm/module.h
@@ -5,8 +5,6 @@
 
 #ifdef CONFIG_X86_64
 /* X86_64 does not define MODULE_PROC_FAMILY */
-#elif defined CONFIG_M386
-#define MODULE_PROC_FAMILY "386 "
 #elif defined CONFIG_M486
 #define MODULE_PROC_FAMILY "486 "
 #elif defined CONFIG_M586

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index ad1fc85116743d677ff5b050e7226c2988a5e559..9a4ee46959f3d1f04e5f4e2bb7b20b781adb1341 100644 (file)
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -672,7 +672,7 @@ static inline void sync_core(void)
 {
        int tmp;
 
-#if defined(CONFIG_M386) || defined(CONFIG_M486)
+#ifdef CONFIG_M486
        if (boot_cpu_data.x86 < 5)
                /* There is no speculative execution.
                 * jmp is a barrier to prefetching. */