Commit bd141a3d authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

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: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Acked-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232325.917219885@linutronix.de
parent 877d6c4e

include/linux/irqdomain_defs.h

+2 −0
Original line number Diff line number Diff line
@@ -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 */

kernel/irq/msi.c

+4 −0
Original line number Diff line number Diff line
@@ -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;