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x86: use HAVE_X2APIC in apic_64.c 

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2008-08-24 02:01:47 -07:00 committed by Ingo Molnar
parent b3c5117050
commit 49899eacce
1 changed files with 23 additions and 12 deletions
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35
arch/x86/kernel/apic_64.c
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@ -82,10 +82,23 @@ static __init int setup_apicpmtimer(char *s)
__setup("apicpmtimer", setup_apicpmtimer);
#endif
int disable_x2apic;
#ifdef CONFIG_X86_64
#define HAVE_X2APIC
#endif
#ifdef HAVE_X2APIC
int x2apic;
/* x2apic enabled before OS handover */
int x2apic_preenabled;
int disable_x2apic;
static __init int setup_nox2apic(char *str)
{
disable_x2apic = 1;
setup_clear_cpu_cap(X86_FEATURE_X2APIC);
return 0;
}
early_param("nox2apic", setup_nox2apic);
#endif
unsigned long mp_lapic_addr;
int disable_apic;
@ -228,6 +241,7 @@ static struct apic_ops xapic_ops = {
struct apic_ops __read_mostly *apic_ops = &xapic_ops;
EXPORT_SYMBOL_GPL(apic_ops);
#ifdef HAVE_X2APIC
static void x2apic_wait_icr_idle(void)
{
/* no need to wait for icr idle in x2apic */
@ -261,6 +275,7 @@ static struct apic_ops x2apic_ops = {
.wait_icr_idle = x2apic_wait_icr_idle,
.safe_wait_icr_idle = safe_x2apic_wait_icr_idle,
};
#endif
/**
* enable_NMI_through_LVT0 - enable NMI through local vector table 0
@ -1125,6 +1140,7 @@ void __cpuinit end_local_APIC_setup(void)
apic_pm_activate();
}
#ifdef HAVE_X2APIC
void check_x2apic(void)
{
int msr, msr2;
@ -1243,6 +1259,7 @@ end:
return;
}
#endif /* HAVE_X2APIC */
/*
* Detect and enable local APICs on non-SMP boards.
@ -1291,10 +1308,12 @@ void __init early_init_lapic_mapping(void)
*/
void __init init_apic_mappings(void)
{
#ifdef HAVE_X2APIC
if (x2apic) {
boot_cpu_physical_apicid = read_apic_id();
return;
}
#endif
/*
* If no local APIC can be found then set up a fake all
@ -1335,8 +1354,9 @@ int __init APIC_init_uniprocessor(void)
printk(KERN_INFO "Apic disabled by BIOS\n");
return -1;
}
#ifdef HAVE_X2APIC
enable_IR_x2apic();
#endif
setup_apic_routing();
verify_local_APIC();
@ -1672,7 +1692,7 @@ static int lapic_resume(struct sys_device *dev)
local_irq_save(flags);
#ifdef CONFIG_X86_64
#ifdef HAVE_X2APIC
if (x2apic)
enable_x2apic();
else
@ -1836,15 +1856,6 @@ __cpuinit int apic_is_clustered_box(void)
return (clusters > 2);
}
static __init int setup_nox2apic(char *str)
{
disable_x2apic = 1;
clear_cpu_cap(&boot_cpu_data, X86_FEATURE_X2APIC);
return 0;
}
early_param("nox2apic", setup_nox2apic);
/*
* APIC command line parameters
*/