Update Linux to v5.4.148
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.148.tar.gz
Change-Id: Ib3d26c5ba9b022e2e03533005c4fed4d7c30b61b
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index ad26fbc..b7e4c59 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -437,52 +437,46 @@
can_reserve = msi_check_reservation_mode(domain, info, dev);
- for_each_msi_entry(desc, dev) {
- virq = desc->irq;
- if (desc->nvec_used == 1)
- dev_dbg(dev, "irq %d for MSI\n", virq);
- else
+ /*
+ * This flag is set by the PCI layer as we need to activate
+ * the MSI entries before the PCI layer enables MSI in the
+ * card. Otherwise the card latches a random msi message.
+ */
+ if (!(info->flags & MSI_FLAG_ACTIVATE_EARLY))
+ goto skip_activate;
+
+ for_each_msi_vector(desc, i, dev) {
+ if (desc->irq == i) {
+ virq = desc->irq;
dev_dbg(dev, "irq [%d-%d] for MSI\n",
virq, virq + desc->nvec_used - 1);
- /*
- * This flag is set by the PCI layer as we need to activate
- * the MSI entries before the PCI layer enables MSI in the
- * card. Otherwise the card latches a random msi message.
- */
- if (!(info->flags & MSI_FLAG_ACTIVATE_EARLY))
- continue;
+ }
- irq_data = irq_domain_get_irq_data(domain, desc->irq);
- if (!can_reserve)
+ irq_data = irq_domain_get_irq_data(domain, i);
+ if (!can_reserve) {
irqd_clr_can_reserve(irq_data);
+ if (domain->flags & IRQ_DOMAIN_MSI_NOMASK_QUIRK)
+ irqd_set_msi_nomask_quirk(irq_data);
+ }
ret = irq_domain_activate_irq(irq_data, can_reserve);
if (ret)
goto cleanup;
}
+skip_activate:
/*
* If these interrupts use reservation mode, clear the activated bit
* so request_irq() will assign the final vector.
*/
if (can_reserve) {
- for_each_msi_entry(desc, dev) {
- irq_data = irq_domain_get_irq_data(domain, desc->irq);
+ for_each_msi_vector(desc, i, dev) {
+ irq_data = irq_domain_get_irq_data(domain, i);
irqd_clr_activated(irq_data);
}
}
return 0;
cleanup:
- for_each_msi_entry(desc, dev) {
- struct irq_data *irqd;
-
- if (desc->irq == virq)
- break;
-
- irqd = irq_domain_get_irq_data(domain, desc->irq);
- if (irqd_is_activated(irqd))
- irq_domain_deactivate_irq(irqd);
- }
msi_domain_free_irqs(domain, dev);
return ret;
}
@@ -495,7 +489,15 @@
*/
void msi_domain_free_irqs(struct irq_domain *domain, struct device *dev)
{
+ struct irq_data *irq_data;
struct msi_desc *desc;
+ int i;
+
+ for_each_msi_vector(desc, i, dev) {
+ irq_data = irq_domain_get_irq_data(domain, i);
+ if (irqd_is_activated(irq_data))
+ irq_domain_deactivate_irq(irq_data);
+ }
for_each_msi_entry(desc, dev) {
/*