diff options
| -rw-r--r-- | arch/parisc/kernel/smp.c | 11 | ||||
| -rw-r--r-- | include/asm-parisc/processor.h | 1 |
2 files changed, 7 insertions, 5 deletions
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 4a23a97..5b6bc6e 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -76,6 +76,7 @@ cpumask_t cpu_possible_map __read_mostly = CPU_MASK_ALL; /* Bitmap of Present CP EXPORT_SYMBOL(cpu_online_map); EXPORT_SYMBOL(cpu_possible_map); +DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED; struct smp_call_struct { void (*func) (void *info); @@ -167,10 +168,11 @@ ipi_interrupt(int irq, void *dev_id) mb(); /* Order interrupt and bit testing. */ for (;;) { - spin_lock_irqsave(&(p->lock),flags); + spinlock_t *lock = &per_cpu(ipi_lock, this_cpu); + spin_lock_irqsave(lock, flags); ops = p->pending_ipi; p->pending_ipi = 0; - spin_unlock_irqrestore(&(p->lock),flags); + spin_unlock_irqrestore(lock, flags); mb(); /* Order bit clearing and data access. */ @@ -275,12 +277,13 @@ static inline void ipi_send(int cpu, enum ipi_message_type op) { struct cpuinfo_parisc *p = &cpu_data[cpu]; + spinlock_t *lock = &per_cpu(ipi_lock, cpu); unsigned long flags; - spin_lock_irqsave(&(p->lock),flags); + spin_lock_irqsave(lock, flags); p->pending_ipi |= 1 << op; gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa); - spin_unlock_irqrestore(&(p->lock),flags); + spin_unlock_irqrestore(lock, flags); } diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h index fd7866d..435afe5 100644 --- a/include/asm-parisc/processor.h +++ b/include/asm-parisc/processor.h @@ -87,7 +87,6 @@ struct cpuinfo_parisc { unsigned long hpa; /* Host Physical address */ unsigned long txn_addr; /* MMIO addr of EIR or id_eid */ #ifdef CONFIG_SMP - spinlock_t lock; /* synchronization for ipi's */ unsigned long pending_ipi; /* bitmap of type ipi_message_type */ unsigned long ipi_count; /* number ipi Interrupts */ #endif |
