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x86, smp: refactor ->wait_for_init_deassert()

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- spread out the namespace on a per APIC driver basis

 - handle a NULL ->wait_for_init_deassert() as a 'dont wait' default method

 - remove NUMAQ and Summit handlers

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-01-28 16:21:32 +01:00
parent abfa584c8d
commit a965936643
11 changed files with 21 additions and 19 deletions
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2
arch/x86/include/asm/es7000/wakecpu.h
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@ -4,7 +4,7 @@
#define ES7000_TRAMPOLINE_PHYS_LOW 0x467
#define ES7000_TRAMPOLINE_PHYS_HIGH 0x469
static inline void wait_for_init_deassert(atomic_t *deassert)
static inline void es7000_wait_for_init_deassert(atomic_t *deassert)
{
#ifndef CONFIG_ES7000_CLUSTERED_APIC
while (!atomic_read(deassert))

2
arch/x86/include/asm/mach-default/mach_wakecpu.h
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@ -1,7 +1,7 @@
#ifndef _ASM_X86_MACH_DEFAULT_MACH_WAKECPU_H
#define _ASM_X86_MACH_DEFAULT_MACH_WAKECPU_H
static inline void wait_for_init_deassert(atomic_t *deassert)
static inline void default_wait_for_init_deassert(atomic_t *deassert)
{
while (!atomic_read(deassert))
cpu_relax();

1
arch/x86/include/asm/mach-generic/mach_wakecpu.h
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@ -1,7 +1,6 @@
#ifndef _ASM_X86_MACH_GENERIC_MACH_WAKECPU_H
#define _ASM_X86_MACH_GENERIC_MACH_WAKECPU_H
#define wait_for_init_deassert (apic->wait_for_init_deassert)
#define smp_callin_clear_local_apic (apic->smp_callin_clear_local_apic)
#define store_NMI_vector (apic->store_NMI_vector)
#define restore_NMI_vector (apic->restore_NMI_vector)

5
arch/x86/include/asm/numaq/wakecpu.h
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@ -6,11 +6,6 @@
#define NUMAQ_TRAMPOLINE_PHYS_LOW (0x8)
#define NUMAQ_TRAMPOLINE_PHYS_HIGH (0xa)
/* We don't do anything here because we use NMI's to boot instead */
static inline void wait_for_init_deassert(atomic_t *deassert)
{
}
/*
* Because we use NMIs rather than the INIT-STARTUP sequence to
* bootstrap the CPUs, the APIC may be in a weird state. Kick it.

6
arch/x86/kernel/es7000_32.c
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@ -182,10 +182,6 @@ static int wakeup_secondary_cpu_via_mip(int cpu, unsigned long eip)
return 0;
}
static void noop_wait_for_deassert(atomic_t *deassert_not_used)
{
}
static int __init es7000_update_genapic(void)
{
apic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
@ -194,7 +190,7 @@ static int __init es7000_update_genapic(void)
if (boot_cpu_data.x86 == 6 &&
(boot_cpu_data.x86_model >= 7 || boot_cpu_data.x86_model <= 11)) {
es7000_update_genapic_to_cluster();
apic->wait_for_init_deassert = noop_wait_for_deassert;
apic->wait_for_init_deassert = NULL;
apic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
}

3
arch/x86/kernel/smpboot.c
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@ -196,7 +196,8 @@ static void __cpuinit smp_callin(void)
* our local APIC. We have to wait for the IPI or we'll
* lock up on an APIC access.
*/
wait_for_init_deassert(&init_deasserted);
if (apic->wait_for_init_deassert)
apic->wait_for_init_deassert(&init_deasserted);
/*
* (This works even if the APIC is not enabled.)

4
arch/x86/mach-generic/bigsmp.c
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@ -106,7 +106,9 @@ struct genapic apic_bigsmp = {
.wakeup_cpu = NULL,
.trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
.trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
.wait_for_init_deassert = wait_for_init_deassert,
.wait_for_init_deassert = default_wait_for_init_deassert,
.smp_callin_clear_local_apic = smp_callin_clear_local_apic,
.store_NMI_vector = store_NMI_vector,
.restore_NMI_vector = restore_NMI_vector,

4
arch/x86/mach-generic/default.c
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@ -87,7 +87,9 @@ struct genapic apic_default = {
.wakeup_cpu = NULL,
.trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
.trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
.wait_for_init_deassert = wait_for_init_deassert,
.wait_for_init_deassert = default_wait_for_init_deassert,
.smp_callin_clear_local_apic = smp_callin_clear_local_apic,
.store_NMI_vector = store_NMI_vector,
.restore_NMI_vector = restore_NMI_vector,

4
arch/x86/mach-generic/es7000.c
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@ -142,7 +142,9 @@ struct genapic apic_es7000 = {
.wakeup_cpu = NULL,
.trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
.trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
.wait_for_init_deassert = wait_for_init_deassert,
.wait_for_init_deassert = default_wait_for_init_deassert,
.smp_callin_clear_local_apic = smp_callin_clear_local_apic,
.store_NMI_vector = store_NMI_vector,
.restore_NMI_vector = restore_NMI_vector,

5
arch/x86/mach-generic/numaq.c
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@ -106,7 +106,10 @@ struct genapic apic_numaq = {
.wakeup_cpu = NULL,
.trampoline_phys_low = NUMAQ_TRAMPOLINE_PHYS_LOW,
.trampoline_phys_high = NUMAQ_TRAMPOLINE_PHYS_HIGH,
.wait_for_init_deassert = wait_for_init_deassert,
/* We don't do anything here because we use NMI's to boot instead */
.wait_for_init_deassert = NULL,
.smp_callin_clear_local_apic = smp_callin_clear_local_apic,
.store_NMI_vector = store_NMI_vector,
.restore_NMI_vector = restore_NMI_vector,

4
arch/x86/mach-generic/summit.c
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@ -86,7 +86,9 @@ struct genapic apic_summit = {
.wakeup_cpu = NULL,
.trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW,
.trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH,
.wait_for_init_deassert = wait_for_init_deassert,
.wait_for_init_deassert = default_wait_for_init_deassert,
.smp_callin_clear_local_apic = smp_callin_clear_local_apic,
.store_NMI_vector = store_NMI_vector,
.restore_NMI_vector = restore_NMI_vector,