Commit-ID: 44c4c25e3103d26bee4cc041cbf526e41975055b
Gitweb: https://git.kernel.org/tip/44c4c25e3103d26bee4cc041cbf526e41975055b
Author: Marc Zyngier <marc.zyngier@xxxxxxx>
AuthorDate: Thu, 19 Oct 2017 10:11:34 +0100
Committer: Marc Zyngier <marc.zyngier@xxxxxxx>
CommitDate: Thu, 19 Oct 2017 11:22:42 +0100
irqchip/gic-v3-its: Update effective affinity on VPE mapping
When setting the affinity of a VPE (either because we map or move
it), make sure the effective affinity is correctly reported back
to the core kernel.
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
drivers/irqchip/irq-gic-v3-its.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index bc70993..6a74f04 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1178,11 +1178,13 @@ static void its_map_vm(struct its_node *its, struct its_vm *vm)
for (i = 0; i < vm->nr_vpes; i++) {
struct its_vpe *vpe = vm->vpes[i];
+ struct irq_data *d = irq_get_irq_data(vpe->irq);
/* Map the VPE to the first possible CPU */
vpe->col_idx = cpumask_first(cpu_online_mask);
its_send_vmapp(its, vpe, true);
its_send_vinvall(its, vpe);
+ irq_data_update_effective_affinity(d, cpumask_of(vpe->col_idx));
}
}
@@ -2449,6 +2451,8 @@ static int its_vpe_set_affinity(struct irq_data *d,
its_vpe_db_proxy_move(vpe, from, cpu);
}
+ irq_data_update_effective_affinity(d, cpumask_of(cpu));
+
return IRQ_SET_MASK_OK_DONE;
}
@@ -2797,6 +2801,8 @@ static int its_vpe_irq_domain_activate(struct irq_domain *domain,
its_send_vinvall(its, vpe);
}
+ irq_data_update_effective_affinity(d, cpumask_of(vpe->col_idx));
+
return 0;
}
--
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