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Commit 75fd951b authored by Marc Zyngier's avatar Marc Zyngier
Browse files

irqchip/gic-v3-its: Make its_send_vmapp operate on a single ITS 



Currently, its_send_vmapp operates on all ITSs. As we're about
to try and limit the amount of commands we send to ITSs that are
not involved in dealing with a given VM, let's redefine that
primitive so that it takes a target ITS as a parameter.

Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 40619a2e

drivers/irqchip/irq-gic-v3-its.c

+12 −11
Original line number Diff line number Diff line
@@ -924,22 +924,17 @@ static void its_send_vmovi(struct its_device *dev, u32 id) 
	its_send_single_vcommand(dev->its, its_build_vmovi_cmd, &desc);

}



static void its_send_vmapp(struct its_vpe *vpe, bool valid)

static void its_send_vmapp(struct its_node *its,

			   struct its_vpe *vpe, bool valid)

{

	struct its_cmd_desc desc;

	struct its_node *its;



	desc.its_vmapp_cmd.vpe = vpe;

	desc.its_vmapp_cmd.valid = valid;



	list_for_each_entry(its, &its_nodes, entry) {

		if (!its->is_v4)

			continue;



	desc.its_vmapp_cmd.col = &its->collections[vpe->col_idx];



	its_send_single_vcommand(its, its_build_vmapp_cmd, &desc);

}

}



static void its_send_vmovp(struct its_vpe *vpe)

{
@@ -2720,12 +2715,12 @@ static int its_vpe_irq_domain_activate(struct irq_domain *domain, 


	/* Map the VPE to the first possible CPU */

	vpe->col_idx = cpumask_first(cpu_online_mask);

	its_send_vmapp(vpe, true);



	list_for_each_entry(its, &its_nodes, entry) {

		if (!its->is_v4)

			continue;



		its_send_vmapp(its, vpe, true);

		its_send_vinvall(its, vpe);

	}
@@ -2736,8 +2731,14 @@ static void its_vpe_irq_domain_deactivate(struct irq_domain *domain, 
					  struct irq_data *d)

{

	struct its_vpe *vpe = irq_data_get_irq_chip_data(d);

	struct its_node *its;



	its_send_vmapp(vpe, false);

	list_for_each_entry(its, &its_nodes, entry) {

		if (!its->is_v4)

			continue;



		its_send_vmapp(its, vpe, false);

	}

}



static const struct irq_domain_ops its_vpe_domain_ops = {