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authorMarc Zyngier <marc.zyngier@arm.com>2017-10-08 17:16:09 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2017-10-19 13:22:41 +0300
commit40619a2ef69d5e183717d28e8c98a59319c78a4f (patch)
tree4d279cd7fe5ff5ea9dc232359454615ce209c2d4 /drivers/irqchip
parentab60491ee5d346557f152c7e8d3e7238c9b96c5c (diff)
downloadlinux-40619a2ef69d5e183717d28e8c98a59319c78a4f.tar.xz
irqchip/gic-v3-its: Make its_send_vinvall operate on a single ITS
Currently, its_send_vinvall 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>
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-gic-v3-its.c34
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index a63b4ee34860..22ee83043785 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -983,18 +983,12 @@ static void its_send_vmovp(struct its_vpe *vpe)
raw_spin_unlock_irqrestore(&vmovp_lock, flags);
}
-static void its_send_vinvall(struct its_vpe *vpe)
+static void its_send_vinvall(struct its_node *its, struct its_vpe *vpe)
{
struct its_cmd_desc desc;
- struct its_node *its;
desc.its_vinvall_cmd.vpe = vpe;
-
- list_for_each_entry(its, &its_nodes, entry) {
- if (!its->is_v4)
- continue;
- its_send_single_vcommand(its, its_build_vinvall_cmd, &desc);
- }
+ its_send_single_vcommand(its, its_build_vinvall_cmd, &desc);
}
/*
@@ -2466,6 +2460,18 @@ static void its_vpe_deschedule(struct its_vpe *vpe)
}
}
+static void its_vpe_invall(struct its_vpe *vpe)
+{
+ struct its_node *its;
+
+ list_for_each_entry(its, &its_nodes, entry) {
+ if (!its->is_v4)
+ continue;
+
+ its_send_vinvall(its, vpe);
+ }
+}
+
static int its_vpe_set_vcpu_affinity(struct irq_data *d, void *vcpu_info)
{
struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
@@ -2481,7 +2487,7 @@ static int its_vpe_set_vcpu_affinity(struct irq_data *d, void *vcpu_info)
return 0;
case INVALL_VPE:
- its_send_vinvall(vpe);
+ its_vpe_invall(vpe);
return 0;
default:
@@ -2710,11 +2716,19 @@ static int its_vpe_irq_domain_activate(struct irq_domain *domain,
struct irq_data *d, bool early)
{
struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
+ struct its_node *its;
/* Map the VPE to the first possible CPU */
vpe->col_idx = cpumask_first(cpu_online_mask);
its_send_vmapp(vpe, true);
- its_send_vinvall(vpe);
+
+ list_for_each_entry(its, &its_nodes, entry) {
+ if (!its->is_v4)
+ continue;
+
+ its_send_vinvall(its, vpe);
+ }
+
return 0;
}