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x86: require family >= 6 if we are using P6 NOPs 

The P6 family of NOPs are only available on family >= 6 or above, so
enforce that in the boot code.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
hifive-unleashed-5.1
H. Peter Anvin 2008-02-14 14:52:05 -08:00 committed by Ingo Molnar
parent a7ef94e688
commit 7343b3b3a6
2 changed files with 6 additions and 3 deletions
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5
arch/x86/Kconfig.cpu
View File

@ -377,6 +377,10 @@ config X86_OOSTORE
def_bool y
depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
config X86_P6_NOP
def_bool y
depends on (M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || PENTIUM4)
config X86_TSC
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
@ -390,6 +394,7 @@ config X86_CMOV
config X86_MINIMUM_CPU_FAMILY
int
default "64" if X86_64
default "6" if X86_32 && X86_P6_NOP
default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK)
default "3"

4
include/asm-x86/nops.h
View File

@ -63,9 +63,7 @@
#define ASM_NOP6 K7_NOP6
#define ASM_NOP7 K7_NOP7
#define ASM_NOP8 K7_NOP8
#elif defined(CONFIG_M686) || defined(CONFIG_MPENTIUMII) || \
defined(CONFIG_MPENTIUMIII) || defined(CONFIG_MPENTIUMM) || \
defined(CONFIG_MCORE2) || defined(CONFIG_PENTIUM4)
#elif defined(CONFIG_X86_P6_NOP)
#define ASM_NOP1 P6_NOP1
#define ASM_NOP2 P6_NOP2
#define ASM_NOP3 P6_NOP3