[patch V2 11/33] genirq/msi: Provide BUS_DEVICE_PCI_MSI[X]

Thomas Gleixner
2022-11-21T14:38:59Z

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

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irqdomain_defs.h | 2 ++
kernel/irq/msi.c | 4 ++++
2 files changed, 6 insertions(+)

--- 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 */
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -1147,6 +1147,8 @@ static bool msi_check_reservation_mode(s

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:
@@ -1172,6 +1174,8 @@ static int msi_handle_pci_fail(struct ir
{
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;