diff options
Diffstat (limited to 'drivers/vfio/platform/vfio_platform_irq.c')
| -rw-r--r-- | drivers/vfio/platform/vfio_platform_irq.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/vfio/platform/vfio_platform_irq.c b/drivers/vfio/platform/vfio_platform_irq.c index c6c3ec1b9f82..df5c91936a68 100644 --- a/drivers/vfio/platform/vfio_platform_irq.c +++ b/drivers/vfio/platform/vfio_platform_irq.c @@ -23,6 +23,56 @@ #include "vfio_platform_private.h" +static int vfio_platform_set_irq_mask(struct vfio_platform_device *vdev, + unsigned index, unsigned start, + unsigned count, uint32_t flags, + void *data) +{ + return -EINVAL; +} + +static int vfio_platform_set_irq_unmask(struct vfio_platform_device *vdev, + unsigned index, unsigned start, + unsigned count, uint32_t flags, + void *data) +{ + return -EINVAL; +} + +static int vfio_platform_set_irq_trigger(struct vfio_platform_device *vdev, + unsigned index, unsigned start, + unsigned count, uint32_t flags, + void *data) +{ + return -EINVAL; +} + +int vfio_platform_set_irqs_ioctl(struct vfio_platform_device *vdev, + uint32_t flags, unsigned index, unsigned start, + unsigned count, void *data) +{ + int (*func)(struct vfio_platform_device *vdev, unsigned index, + unsigned start, unsigned count, uint32_t flags, + void *data) = NULL; + + switch (flags & VFIO_IRQ_SET_ACTION_TYPE_MASK) { + case VFIO_IRQ_SET_ACTION_MASK: + func = vfio_platform_set_irq_mask; + break; + case VFIO_IRQ_SET_ACTION_UNMASK: + func = vfio_platform_set_irq_unmask; + break; + case VFIO_IRQ_SET_ACTION_TRIGGER: + func = vfio_platform_set_irq_trigger; + break; + } + + if (!func) + return -ENOTTY; + + return func(vdev, index, start, count, flags, data); +} + int vfio_platform_irq_init(struct vfio_platform_device *vdev) { int cnt = 0, i; @@ -35,13 +85,22 @@ int vfio_platform_irq_init(struct vfio_platform_device *vdev) return -ENOMEM; for (i = 0; i < cnt; i++) { + int hwirq = vdev->get_irq(vdev, i); + + if (hwirq < 0) + goto err; + vdev->irqs[i].flags = 0; vdev->irqs[i].count = 1; + vdev->irqs[i].hwirq = hwirq; } vdev->num_irqs = cnt; return 0; +err: + kfree(vdev->irqs); + return -EINVAL; } void vfio_platform_irq_cleanup(struct vfio_platform_device *vdev) |