Commit-ID: 75fd951be846a494b0f01f80e859dcb74970f0d5
Gitweb: https://git.kernel.org/tip/75fd951be846a494b0f01f80e859dcb74970f0d5
Author: Marc Zyngier <marc.zyngier@xxxxxxx>
AuthorDate: Sun, 8 Oct 2017 18:46:39 +0100
Committer: Marc Zyngier <marc.zyngier@xxxxxxx>
CommitDate: Thu, 19 Oct 2017 11:22:41 +0100
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: Marc Zyngier <marc.zyngier@xxxxxxx>
---
drivers/irqchip/irq-gic-v3-its.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 22ee830..b14585d 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -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;
+
+ list_for_each_entry(its, &its_nodes, entry) {
+ if (!its->is_v4)
+ continue;
- its_send_vmapp(vpe, false);
+ its_send_vmapp(its, vpe, false);
+ }
}
static const struct irq_domain_ops its_vpe_domain_ops = {
--
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