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-rw-r--r--arch/x86/Kconfig.cpu65
1 files changed, 31 insertions, 34 deletions
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index c30162202dc..e09a6b73a1a 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -219,10 +219,10 @@ config MGEODEGX1
Select this for a Geode GX1 (Cyrix MediaGX) chip.
config MGEODE_LX
- bool "Geode GX/LX"
+ bool "Geode GX/LX"
depends on X86_32
- help
- Select this for AMD Geode GX and LX processors.
+ help
+ Select this for AMD Geode GX and LX processors.
config MCYRIXIII
bool "CyrixIII/VIA-C3"
@@ -258,7 +258,7 @@ config MPSC
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
+ 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.
@@ -317,81 +317,75 @@ config X86_L1_CACHE_SHIFT
default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MVIAC7
config X86_XADD
- bool
+ def_bool y
depends on X86_32 && !M386
- default y
config X86_PPRO_FENCE
- bool
+ bool "PentiumPro memory ordering errata workaround"
depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
- default y
+ help
+ Old PentiumPro multiprocessor systems had errata that could cause memory
+ operations to violate the x86 ordering standard in rare cases. Enabling this
+ option will attempt to work around some (but not all) occurances of
+ this problem, at the cost of much heavier spinlock and memory barrier
+ operations.
+
+ If unsure, say n here. Even distro kernels should think twice before enabling
+ this: there are few systems, and an unlikely bug.
config X86_F00F_BUG
- bool
+ def_bool y
depends on M586MMX || M586TSC || M586 || M486 || M386
- default y
config X86_WP_WORKS_OK
- bool
+ def_bool y
depends on X86_32 && !M386
- default y
config X86_INVLPG
- bool
+ def_bool y
depends on X86_32 && !M386
- default y
config X86_BSWAP
- bool
+ def_bool y
depends on X86_32 && !M386
- default y
config X86_POPAD_OK
- bool
+ def_bool y
depends on X86_32 && !M386
- default y
config X86_ALIGNMENT_16
- bool
+ def_bool y
depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
- default y
config X86_GOOD_APIC
- bool
+ def_bool y
depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 || MVIAC7 || X86_64
- default y
config X86_INTEL_USERCOPY
- bool
+ def_bool y
depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2
- default y
config X86_USE_PPRO_CHECKSUM
- bool
+ def_bool y
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
+ def_bool y
depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML
- default y
config X86_OOSTORE
- bool
+ def_bool y
depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
- default y
config X86_TSC
- bool
+ def_bool y
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
+ def_bool y
depends on (MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7)
- default y
config X86_MINIMUM_CPU_FAMILY
int
@@ -399,3 +393,6 @@ config X86_MINIMUM_CPU_FAMILY
default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK)
default "3"
+config X86_DEBUGCTLMSR
+ def_bool y
+ depends on !(M586MMX || M586TSC || M586 || M486 || M386)