irqchip/gic-v4.1: Plumb mask/unmask SGI callbacks

Implement mask/unmask for virtual SGIs by calling into the
configuration helper.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20200304203330.4967-11-maz@kernel.org

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 28c856a..bc6666a 100644 (file)
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -3944,6 +3944,22 @@ static void its_configure_sgi(struct irq_data *d, bool clear)
        its_send_single_vcommand(find_4_1_its(), its_build_vsgi_cmd, &desc);
 }
 
+static void its_sgi_mask_irq(struct irq_data *d)
+{
+       struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
+
+       vpe->sgi_config[d->hwirq].enabled = false;
+       its_configure_sgi(d, false);
+}
+
+static void its_sgi_unmask_irq(struct irq_data *d)
+{
+       struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
+
+       vpe->sgi_config[d->hwirq].enabled = true;
+       its_configure_sgi(d, false);
+}
+
 static int its_sgi_set_affinity(struct irq_data *d,
                                const struct cpumask *mask_val,
                                bool force)
@@ -3958,6 +3974,8 @@ static int its_sgi_set_affinity(struct irq_data *d,
 
 static struct irq_chip its_sgi_irq_chip = {
        .name                   = "GICv4.1-sgi",
+       .irq_mask               = its_sgi_mask_irq,
+       .irq_unmask             = its_sgi_unmask_irq,
        .irq_set_affinity       = its_sgi_set_affinity,
 };