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intr_remap: Use irq_2_iommu in struct irq_cfg 

Switch the intr_remapping code to use the irq_2_iommu struct in
irg_cfg.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Thomas Gleixner 2010-10-10 12:29:27 +02:00
parent 423f085952
commit 349d67673c
1 changed files with 5 additions and 38 deletions
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43
drivers/pci/intr_remapping.c
View File

@ -46,53 +46,20 @@ static __init int setup_intremap(char *str)
}
early_param("intremap", setup_intremap);
#ifdef CONFIG_GENERIC_HARDIRQS
static struct irq_2_iommu *irq_2_iommu(unsigned int irq)
{
return get_irq_iommu(irq);
struct irq_cfg *cfg = get_irq_chip_data(irq);
return cfg ? &cfg->irq_2_iommu : NULL;
}
static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq)
{
struct irq_data *data = irq_get_irq_data(irq);
if (WARN_ONCE(data->irq_2_iommu,
KERN_DEBUG "irq_2_iommu!=NULL irq %u\n", irq))
return data->irq_2_iommu;
data->irq_2_iommu = kzalloc_node(sizeof(*data->irq_2_iommu),
GFP_ATOMIC, data->node);
return data->irq_2_iommu;
}
static void irq_2_iommu_free(unsigned int irq)
{
struct irq_data *d = irq_get_irq_data(irq);
struct irq_2_iommu *p = d->irq_2_iommu;
d->irq_2_iommu = NULL;
kfree(p);
}
#else /* !CONFIG_SPARSE_IRQ */
static struct irq_2_iommu irq_2_iommuX[NR_IRQS];
static struct irq_2_iommu *irq_2_iommu(unsigned int irq)
{
if (irq < nr_irqs)
return &irq_2_iommuX[irq];
return NULL;
}
static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq)
{
return irq_2_iommu(irq);
}
static void irq_2_iommu_free(unsigned int irq) { }
#endif
static void irq_2_iommu_free(unsigned int irq)
{
}
static DEFINE_SPINLOCK(irq_2_ir_lock);