[tip: irq/core] genirq/msi: Provide BUS_DEVICE_PCI_MSI[X]

[tip-bot2 for Thomas Gleixner]

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     bd141a3db40c877e01de8e981edb57c03199d876
Gitweb:        https://git.kernel.org/tip/bd141a3db40c877e01de8e981edb57c03199d876
Author:        Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate:    Fri, 25 Nov 2022 00:26:02 +01:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Mon, 05 Dec 2022 22:22:32 +01:00

genirq/msi: Provide BUS_DEVICE_PCI_MSI[X]

Provide new bus tokens for the upcoming per device PCI/MSI and PCI/MSIX
interrupt domains.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
Acked-by: Marc Zyngier <maz@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221124232325.917219885@xxxxxxxxxxxxx

---
 include/linux/irqdomain_defs.h | 2 ++
 kernel/irq/msi.c               | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/include/linux/irqdomain_defs.h b/include/linux/irqdomain_defs.h
index 69035b4..b3f4b7e 100644
--- a/include/linux/irqdomain_defs.h
+++ b/include/linux/irqdomain_defs.h
@@ -21,6 +21,8 @@ enum irq_domain_bus_token {
 	DOMAIN_BUS_TI_SCI_INTA_MSI,
 	DOMAIN_BUS_WAKEUP,
 	DOMAIN_BUS_VMD_MSI,
+	DOMAIN_BUS_PCI_DEVICE_MSI,
+	DOMAIN_BUS_PCI_DEVICE_MSIX,
 };
 
 #endif /* _LINUX_IRQDOMAIN_DEFS_H */
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index ae58692..0749e66 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -1118,6 +1118,8 @@ static bool msi_check_reservation_mode(struct irq_domain *domain,
 
 	switch(domain->bus_token) {
 	case DOMAIN_BUS_PCI_MSI:
+	case DOMAIN_BUS_PCI_DEVICE_MSI:
+	case DOMAIN_BUS_PCI_DEVICE_MSIX:
 	case DOMAIN_BUS_VMD_MSI:
 		break;
 	default:
@@ -1143,6 +1145,8 @@ static int msi_handle_pci_fail(struct irq_domain *domain, struct msi_desc *desc,
 {
 	switch(domain->bus_token) {
 	case DOMAIN_BUS_PCI_MSI:
+	case DOMAIN_BUS_PCI_DEVICE_MSI:
+	case DOMAIN_BUS_PCI_DEVICE_MSIX:
 	case DOMAIN_BUS_VMD_MSI:
 		if (IS_ENABLED(CONFIG_PCI_MSI))
 			break;