diff options
Diffstat (limited to 'drivers/irqchip/irq-msi-lib.c')
| -rw-r--r-- | drivers/irqchip/irq-msi-lib.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/irqchip/irq-msi-lib.c b/drivers/irqchip/irq-msi-lib.c index 51464c6257f3..908944009c21 100644 --- a/drivers/irqchip/irq-msi-lib.c +++ b/drivers/irqchip/irq-msi-lib.c @@ -4,7 +4,7 @@ #include <linux/export.h> -#include "irq-msi-lib.h" +#include <linux/irqchip/irq-msi-lib.h> /** * msi_lib_init_dev_msi_info - Domain info setup for MSI domains @@ -105,8 +105,13 @@ bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain, * MSI message into the hardware which is the whole purpose of the * device MSI domain aside of mask/unmask which is provided e.g. by * PCI/MSI device domains. + * + * The exception to the rule is when the underlying domain + * tells you that affinity is not a thing -- for example when + * everything is muxed behind a single interrupt. */ - chip->irq_set_affinity = msi_domain_set_affinity; + if (!chip->irq_set_affinity && !(info->flags & MSI_FLAG_NO_AFFINITY)) + chip->irq_set_affinity = msi_domain_set_affinity; return true; } EXPORT_SYMBOL_GPL(msi_lib_init_dev_msi_info); @@ -132,7 +137,10 @@ int msi_lib_irq_domain_select(struct irq_domain *d, struct irq_fwspec *fwspec, if (!ops) return 0; - if (fwspec->fwnode != d->fwnode || fwspec->param_count != 0) + struct fwnode_handle *fwh __free(fwnode_handle) = + d->flags & IRQ_DOMAIN_FLAG_FWNODE_PARENT ? fwnode_get_parent(fwspec->fwnode) + : fwnode_handle_get(fwspec->fwnode); + if (fwh != d->fwnode || fwspec->param_count != 0) return 0; /* Handle pure domain searches */ |