From: David Daney david.daney@cavium.com
Signed-off-by: David Daney david.daney@cavium.com Signed-off-by: Vadim Lomovtsev Vadim.Lomovtsev@caviumnetworks.com --- drivers/irqchip/irq-gic-v3-its.c | 14 +++++++++++++- include/linux/irqchip/arm-gic-v3.h | 2 ++ 2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 36b664c..890aa3b 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1197,11 +1197,23 @@ static int its_pci_msi_vec_count(struct pci_dev *pdev) return max(msi, msix); }
+static u32 its_dflt_pci_requester_id(struct pci_dev *pdev, u16 alias) +{ + return alias; +} + +static its_pci_requester_id_t its_pci_requester_id = its_dflt_pci_requester_id; +void set_its_pci_requester_id(its_pci_requester_id_t fn) +{ + its_pci_requester_id = fn; +} +EXPORT_SYMBOL(set_its_pci_requester_id); + static int its_get_pci_alias(struct pci_dev *pdev, u16 alias, void *data) { struct its_pci_alias *dev_alias = data;
- dev_alias->dev_id = alias; + dev_alias->dev_id = its_pci_requester_id(pdev, alias); if (pdev != dev_alias->pdev) dev_alias->count += its_pci_msi_vec_count(dev_alias->pdev);
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index ffbc034..18e3757 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -389,6 +389,8 @@ int its_cpu_init(void); int its_init(struct device_node *node, struct rdists *rdists, struct irq_domain *domain);
+typedef u32 (*its_pci_requester_id_t)(struct pci_dev *, u16); +void set_its_pci_requester_id(its_pci_requester_id_t fn); #endif
#endif