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genirq/msi: Provide BUS_DEVICE_PCI_MSI[X]

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

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232325.917219885@linutronix.de
This commit is contained in:
Thomas Gleixner 2022-11-25 00:26:02 +01:00
parent 877d6c4e93
commit bd141a3db4
2 changed files with 6 additions and 0 deletions
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2
include/linux/irqdomain_defs.h
View File

@ -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 */

4
kernel/irq/msi.c
View File

@ -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;