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x86: adjust enable_NMI_through_LVT0()

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Its previous use in a call to on_each_cpu() was pointless, as at the
time that code gets executed only one CPU is online. Further, the
function can be __cpuinit, and for this to work without
CONFIG_HOTPLUG_CPU setup_nmi() must also get an attribute (this one
can even be __init; on 64-bits check_timer() also was lacking that
attribute).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jan Beulich 2008-01-30 13:31:24 +01:00 committed by Ingo Molnar
parent cae4595764
commit e94271017f
7 changed files with 10 additions and 10 deletions
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2
arch/x86/kernel/apic_32.c
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@ -152,7 +152,7 @@ u32 safe_apic_wait_icr_idle(void)
/**
* enable_NMI_through_LVT0 - enable NMI through local vector table 0
*/
void enable_NMI_through_LVT0 (void * dummy)
void __cpuinit enable_NMI_through_LVT0(void)
{
unsigned int v = APIC_DM_NMI;

2
arch/x86/kernel/apic_64.c
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@ -130,7 +130,7 @@ u32 safe_apic_wait_icr_idle(void)
/**
* enable_NMI_through_LVT0 - enable NMI through local vector table 0
*/
void enable_NMI_through_LVT0(void *dummy)
void __cpuinit enable_NMI_through_LVT0(void)
{
unsigned int v;

4
arch/x86/kernel/io_apic_32.c
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@ -2078,7 +2078,7 @@ static struct irq_chip lapic_chip __read_mostly = {
.eoi = ack_apic,
};
static void setup_nmi (void)
static void __init setup_nmi(void)
{
/*
* Dirty trick to enable the NMI watchdog ...
@ -2091,7 +2091,7 @@ static void setup_nmi (void)
*/
apic_printk(APIC_VERBOSE, KERN_INFO "activating NMI Watchdog ...");
on_each_cpu(enable_NMI_through_LVT0, NULL, 1, 1);
enable_NMI_through_LVT0();
apic_printk(APIC_VERBOSE, " done.\n");
}

6
arch/x86/kernel/io_apic_64.c
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@ -1566,7 +1566,7 @@ static struct hw_interrupt_type lapic_irq_type __read_mostly = {
.end = end_lapic_irq,
};
static void setup_nmi (void)
static void __init setup_nmi(void)
{
/*
* Dirty trick to enable the NMI watchdog ...
@ -1579,7 +1579,7 @@ static void setup_nmi (void)
*/
printk(KERN_INFO "activating NMI Watchdog ...");
enable_NMI_through_LVT0(NULL);
enable_NMI_through_LVT0();
printk(" done.\n");
}
@ -1655,7 +1655,7 @@ static inline void unlock_ExtINT_logic(void)
*
* FIXME: really need to revamp this for modern platforms only.
*/
static inline void check_timer(void)
static inline void __init check_timer(void)
{
struct irq_cfg *cfg = irq_cfg + 0;
int apic1, pin1, apic2, pin2;

2
arch/x86/kernel/smpboot_32.c
View File

@ -404,7 +404,7 @@ static void __cpuinit start_secondary(void *unused)
setup_secondary_clock();
if (nmi_watchdog == NMI_IO_APIC) {
disable_8259A_irq(0);
enable_NMI_through_LVT0(NULL);
enable_NMI_through_LVT0();
enable_8259A_irq(0);
}
/*

2
arch/x86/kernel/smpboot_64.c
View File

@ -337,7 +337,7 @@ void __cpuinit start_secondary(void)
if (nmi_watchdog == NMI_IO_APIC) {
disable_8259A_irq(0);
enable_NMI_through_LVT0(NULL);
enable_NMI_through_LVT0();
enable_8259A_irq(0);
}

2
include/asm-x86/apic.h
View File

@ -117,7 +117,7 @@ extern void init_apic_mappings(void);
extern void setup_boot_APIC_clock(void);
extern void setup_secondary_APIC_clock(void);
extern int APIC_init_uniprocessor(void);
extern void enable_NMI_through_LVT0(void *dummy);
extern void enable_NMI_through_LVT0(void);
/*
* On 32bit this is mach-xxx local