diff options
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-msi-lib.c | 15 | ||||
| -rw-r--r-- | drivers/irqchip/irq-msi-lib.h | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-msi-lib.c b/drivers/irqchip/irq-msi-lib.c index ef26962a31ee..b98a2191c860 100644 --- a/drivers/irqchip/irq-msi-lib.c +++ b/drivers/irqchip/irq-msi-lib.c @@ -57,6 +57,21 @@ bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain, return false; break; + case DOMAIN_BUS_DEVICE_MSI: + /* + * Per device MSI should never have any MSI feature bits + * set. It's sole purpose is to create a dumb interrupt + * chip which has a device specific irq_write_msi_msg() + * callback. + */ + if (WARN_ON_ONCE(info->flags)) + return false; + + /* Core managed MSI descriptors */ + info->flags = MSI_FLAG_ALLOC_SIMPLE_MSI_DESCS | MSI_FLAG_FREE_MSI_DESCS; + /* Remove PCI specific flags */ + required_flags &= ~MSI_FLAG_PCI_MSI_MASK_PARENT; + break; default: /* * This should never be reached. See diff --git a/drivers/irqchip/irq-msi-lib.h b/drivers/irqchip/irq-msi-lib.h index 525aa5284a99..681ceabb7bc7 100644 --- a/drivers/irqchip/irq-msi-lib.h +++ b/drivers/irqchip/irq-msi-lib.h @@ -15,6 +15,8 @@ #define MATCH_PCI_MSI (0) #endif +#define MATCH_PLATFORM_MSI BIT(DOMAIN_BUS_PLATFORM_MSI) + int msi_lib_irq_domain_select(struct irq_domain *d, struct irq_fwspec *fwspec, enum irq_domain_bus_token bus_token); |