diff options
| author | Diana Craciun <diana.craciun@oss.nxp.com> | 2020-10-05 20:36:51 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2020-10-12 11:33:06 -0600 |
| commit | 2e0d29561f593a5ab6d37ea032513d2714a007df (patch) | |
| tree | 6f34b42f1cee728161c0ffb61b795f0c2cfa7248 /drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c | |
| parent | f2ba7e8c947bf38fec799fdf9122e05a6a3e8382 (diff) | |
vfio/fsl-mc: Add irq infrastructure for fsl-mc devices
This patch adds the skeleton for interrupt support
for fsl-mc devices. The interrupts are not yet functional,
the functionality will be added by subsequent patches.
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c')
| -rw-r--r-- | drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c b/drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c new file mode 100644 index 000000000000..5232f208e361 --- /dev/null +++ b/drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. + * Copyright 2019 NXP + */ + +#include <linux/vfio.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/eventfd.h> +#include <linux/msi.h> + +#include "linux/fsl/mc.h" +#include "vfio_fsl_mc_private.h" + +static int vfio_fsl_mc_set_irq_trigger(struct vfio_fsl_mc_device *vdev, + unsigned int index, unsigned int start, + unsigned int count, u32 flags, + void *data) +{ + return -EINVAL; +} + +int vfio_fsl_mc_set_irqs_ioctl(struct vfio_fsl_mc_device *vdev, + u32 flags, unsigned int index, + unsigned int start, unsigned int count, + void *data) +{ + if (flags & VFIO_IRQ_SET_ACTION_TRIGGER) + return vfio_fsl_mc_set_irq_trigger(vdev, index, start, + count, flags, data); + else + return -EINVAL; +} |