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

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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: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Marc Zyngier 2017-10-08 18:46:39 +01:00
parent 40619a2ef6
commit 75fd951be8
1 changed files with 12 additions and 11 deletions
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23
drivers/irqchip/irq-gic-v3-its.c
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@ -924,21 +924,16 @@ 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;
desc.its_vmapp_cmd.col = &its->collections[vpe->col_idx];
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);
}
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 = {