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x86/cpufeature: Remove cpu_has_x2apic

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Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1459266123-21878-5-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Borislav Petkov 2016-03-29 17:41:57 +02:00 • committed by Ingo Molnar
parent ab4a56fa2c
commit 62436a4d36
4 changed files with 3 additions and 5 deletions
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1
arch/ia64/include/asm/iommu.h
View file

@ -1,7 +1,6 @@
#ifndef _ASM_IA64_IOMMU_H
#define _ASM_IA64_IOMMU_H 1
#define cpu_has_x2apic 0
/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT (((cycles_t) local_cpu_data->itc_freq)*10)

4
arch/x86/include/asm/apic.h
View file

@ -239,10 +239,10 @@ extern void __init check_x2apic(void);
extern void x2apic_setup(void);
static inline int x2apic_enabled(void)
{
return cpu_has_x2apic && apic_is_x2apic_enabled();
return boot_cpu_has(X86_FEATURE_X2APIC) && apic_is_x2apic_enabled();
}
#define x2apic_supported() (cpu_has_x2apic)
#define x2apic_supported() (boot_cpu_has(X86_FEATURE_X2APIC))
#else /* !CONFIG_X86_X2APIC */
static inline void check_x2apic(void) { }
static inline void x2apic_setup(void) { }

1
arch/x86/include/asm/cpufeature.h
View file

@ -132,7 +132,6 @@ extern const char * const x86_bug_flags[NBUGINTS*32];
#define cpu_has_clflush boot_cpu_has(X86_FEATURE_CLFLUSH)
#define cpu_has_gbpages boot_cpu_has(X86_FEATURE_GBPAGES)
#define cpu_has_pat boot_cpu_has(X86_FEATURE_PAT)
#define cpu_has_x2apic boot_cpu_has(X86_FEATURE_X2APIC)
#define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE)
#define cpu_has_xsaves boot_cpu_has(X86_FEATURE_XSAVES)
/*

2
arch/x86/kernel/apic/apic.c
View file

@ -1561,7 +1561,7 @@ void __init check_x2apic(void)
pr_info("x2apic: enabled by BIOS, switching to x2apic ops\n");
x2apic_mode = 1;
x2apic_state = X2APIC_ON;
} else if (!cpu_has_x2apic) {
} else if (!boot_cpu_has(X86_FEATURE_X2APIC)) {
x2apic_state = X2APIC_DISABLED;
}
}