diff options
Diffstat (limited to 'drivers/xen/events.c')
| -rw-r--r-- | drivers/xen/events.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c index c21066fc30be..1033f6284f31 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -647,12 +647,12 @@ out: #include <linux/msi.h> #include "../pci/msi.h" -static int find_unbound_pirq(int type) +int xen_allocate_pirq_msi(struct pci_dev *dev, struct msi_desc *msidesc) { int rc; struct physdev_get_free_pirq op_get_free_pirq; - op_get_free_pirq.type = type; + op_get_free_pirq.type = MAP_PIRQ_TYPE_MSI; rc = HYPERVISOR_physdev_op(PHYSDEVOP_get_free_pirq, &op_get_free_pirq); WARN_ONCE(rc == -ENOSYS, @@ -661,9 +661,10 @@ static int find_unbound_pirq(int type) return rc ? -1 : op_get_free_pirq.pirq; } -int xen_allocate_pirq_msi(char *name, int *pirq, int alloc_pirq) +int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc, + int pirq, const char *name) { - int irq; + int irq, ret; spin_lock(&irq_mapping_update_lock); @@ -671,24 +672,21 @@ int xen_allocate_pirq_msi(char *name, int *pirq, int alloc_pirq) if (irq == -1) goto out; - if (alloc_pirq) { - *pirq = find_unbound_pirq(MAP_PIRQ_TYPE_MSI); - if (*pirq == -1) { - xen_free_irq(irq); - irq = -1; - goto out; - } - } - set_irq_chip_and_handler_name(irq, &xen_pirq_chip, handle_level_irq, name); - irq_info[irq] = mk_pirq_info(0, *pirq, 0, 0); - pirq_to_irq[*pirq] = irq; - + irq_info[irq] = mk_pirq_info(0, pirq, 0, 0); + pirq_to_irq[pirq] = irq; + ret = set_irq_msi(irq, msidesc); + if (ret < 0) + goto error_irq; out: spin_unlock(&irq_mapping_update_lock); return irq; +error_irq: + spin_unlock(&irq_mapping_update_lock); + xen_free_irq(irq); + return -1; } int xen_create_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int type) |