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| author | Ingo Molnar <mingo@elte.hu> | 2009-02-26 13:51:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-26 13:58:26 +0100 |
| commit | 1f5bcabf1b997d6b76a09114b5a79423495a1263 (patch) | |
| tree | e933ed3b2f534d6014fdbaa9d8210d7d1919f7cb /arch/x86/kernel/smpboot.c | |
| parent | 0917c01f8e793f57a53cf886533d4c75c67f6e89 (diff) | |
| download | op-kernel-dev-1f5bcabf1b997d6b76a09114b5a79423495a1263.zip op-kernel-dev-1f5bcabf1b997d6b76a09114b5a79423495a1263.tar.gz | |
x86: apic: simplify secondary CPU wakeup methods
Impact: cleanup
- rename apic->wakeup_cpu to apic->wakeup_secondary_cpu, to
make it apparent that this is an SMP-only method
- handle NULL ->wakeup_secondary_cpus to mean the default INIT
wakeup sequence - this allows simplification of the APIC
driver templates.
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/smpboot.c')
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 9b338aa..249334f 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -742,7 +742,8 @@ static void __cpuinit do_fork_idle(struct work_struct *work) /* * NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad * (ie clustered apic addressing mode), this is a LOGICAL apic ID. - * Returns zero if CPU booted OK, else error code from ->wakeup_cpu. + * Returns zero if CPU booted OK, else error code from + * ->wakeup_secondary_cpu. */ static int __cpuinit do_boot_cpu(int apicid, int cpu) { @@ -829,9 +830,13 @@ do_rest: } /* - * Starting actual IPI sequence... + * Kick the secondary CPU. Use the method in the APIC driver + * if it's defined - or use an INIT boot APIC message otherwise: */ - boot_error = apic->wakeup_cpu(apicid, start_ip); + if (apic->wakeup_secondary_cpu) + boot_error = apic->wakeup_secondary_cpu(apicid, start_ip); + else + boot_error = wakeup_secondary_cpu_via_init(apicid, start_ip); if (!boot_error) { /* |
