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x86: cleanup for setup code crashes during IST probe

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Clean up the code for crashes during SpeedStep probing on older
machines.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
H. Peter Anvin 2008-08-13 13:14:22 -07:00 committed by Ingo Molnar
parent 875e40b975
commit c2dcfde827
4 changed files with 4 additions and 8 deletions
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4
arch/x86/boot/boot.h
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@ -24,8 +24,8 @@
#include <linux/edd.h> #include <linux/edd.h>
#include <asm/boot.h> #include <asm/boot.h>
#include <asm/setup.h> #include <asm/setup.h>
#include "bitops.h"
#define NCAPINTS 8 #include <asm/cpufeature.h>
/* Useful macros */ /* Useful macros */
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))

3
arch/x86/boot/cpu.c
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@ -16,9 +16,6 @@
*/ */
#include "boot.h" #include "boot.h"
#include "bitops.h"
#include <asm/cpufeature.h>
#include "cpustr.h" #include "cpustr.h"
static char *cpu_name(int level) static char *cpu_name(int level)

2
arch/x86/boot/cpucheck.c
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@ -22,10 +22,8 @@
#ifdef _SETUP #ifdef _SETUP
# include "boot.h" # include "boot.h"
# include "bitops.h"
#endif #endif
#include <linux/types.h> #include <linux/types.h>
#include <asm/cpufeature.h>
#include <asm/processor-flags.h> #include <asm/processor-flags.h>
#include <asm/required-features.h> #include <asm/required-features.h>
#include <asm/msr-index.h> #include <asm/msr-index.h>

3
arch/x86/boot/main.c
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@ -73,7 +73,8 @@ static void keyboard_set_repeat(void)
*/ */
static void query_ist(void) static void query_ist(void)
{ {
/* Some 486 BIOSes apparently crash on this call */ /* Some older BIOSes apparently crash on this call, so filter
it from machines too old to have SpeedStep at all. */
if (cpu.level < 6) if (cpu.level < 6)
return; return;