C++ (Cpp) uv_blade_to_memory_nid Examples

Example #1

File: uv_irq.c Project: DirtyDroidX/android_kernel_htc_m8ul

static int uv_set_irq_2_mmr_info(int irq, unsigned long offset, unsigned blade)
{
	struct rb_node **link = &uv_irq_root.rb_node;
	struct rb_node *parent = NULL;
	struct uv_irq_2_mmr_pnode *n;
	struct uv_irq_2_mmr_pnode *e;
	unsigned long irqflags;

	n = kmalloc_node(sizeof(struct uv_irq_2_mmr_pnode), GFP_KERNEL,
				uv_blade_to_memory_nid(blade));
	if (!n)
		return -ENOMEM;

	n->irq = irq;
	n->offset = offset;
	n->pnode = uv_blade_to_pnode(blade);
	spin_lock_irqsave(&uv_irq_lock, irqflags);
	
	while (*link) {
		parent = *link;
		e = rb_entry(parent, struct uv_irq_2_mmr_pnode, list);

		if (unlikely(irq == e->irq)) {
			
			e->pnode = uv_blade_to_pnode(blade);
			e->offset = offset;
			spin_unlock_irqrestore(&uv_irq_lock, irqflags);
			kfree(n);
			return 0;
		}

		if (irq < e->irq)
			link = &(*link)->rb_left;
		else
			link = &(*link)->rb_right;
	}

	
	rb_link_node(&n->list, parent, link);
	rb_insert_color(&n->list, &uv_irq_root);

	spin_unlock_irqrestore(&uv_irq_lock, irqflags);
	return 0;
}

Example #2

File: uv_irq.c Project: DirtyDroidX/android_kernel_htc_m8ul

int uv_setup_irq(char *irq_name, int cpu, int mmr_blade,
		 unsigned long mmr_offset, int limit)
{
	int irq, ret;

	irq = create_irq_nr(NR_IRQS_LEGACY, uv_blade_to_memory_nid(mmr_blade));

	if (irq <= 0)
		return -EBUSY;

	ret = arch_enable_uv_irq(irq_name, irq, cpu, mmr_blade, mmr_offset,
		limit);
	if (ret == irq)
		uv_set_irq_2_mmr_info(irq, mmr_offset, mmr_blade);
	else
		destroy_irq(irq);

	return ret;
}

Example #3

File: uv_irq.c Project: EMFPGA/linux_media

/*
 * Set up a mapping of an available irq and vector, and enable the specified
 * MMR that defines the MSI that is to be sent to the specified CPU when an
 * interrupt is raised.
 */
int uv_setup_irq(char *irq_name, int cpu, int mmr_blade,
		 unsigned long mmr_offset, int limit)
{
	struct irq_alloc_info info;
	struct irq_domain *domain = uv_get_irq_domain();

	if (!domain)
		return -ENOMEM;

	init_irq_alloc_info(&info, cpumask_of(cpu));
	info.type = X86_IRQ_ALLOC_TYPE_UV;
	info.uv_limit = limit;
	info.uv_blade = mmr_blade;
	info.uv_offset = mmr_offset;
	info.uv_name = irq_name;

	return irq_domain_alloc_irqs(domain, 1,
				     uv_blade_to_memory_nid(mmr_blade), &info);
}