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| author | Diana Craciun <diana.craciun@oss.nxp.com> | 2020-10-05 20:36:48 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2020-10-12 11:32:24 -0600 |
| commit | df747bcd5b216dae7be26945fab2558ed2f7f363 (patch) | |
| tree | 3b8fe3851102adbb9803dd0c66152cf9ae424d8e /drivers/vfio/fsl-mc/vfio_fsl_mc_private.h | |
| parent | f97f4c04e5d6ca8b90b5b412bd7e72de79426263 (diff) | |
| download | linux-stable-df747bcd5b216dae7be26945fab2558ed2f7f363.tar.gz linux-stable-df747bcd5b216dae7be26945fab2558ed2f7f363.tar.bz2 linux-stable-df747bcd5b216dae7be26945fab2558ed2f7f363.zip | |
vfio/fsl-mc: Implement VFIO_DEVICE_GET_REGION_INFO ioctl call
Expose to userspace information about the memory regions.
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_private.h')
| -rw-r--r-- | drivers/vfio/fsl-mc/vfio_fsl_mc_private.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h b/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h index 37d61eaa58c8..be60f41af30f 100644 --- a/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h +++ b/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h @@ -7,9 +7,27 @@ #ifndef VFIO_FSL_MC_PRIVATE_H #define VFIO_FSL_MC_PRIVATE_H +#define VFIO_FSL_MC_OFFSET_SHIFT 40 +#define VFIO_FSL_MC_OFFSET_MASK (((u64)(1) << VFIO_FSL_MC_OFFSET_SHIFT) - 1) + +#define VFIO_FSL_MC_OFFSET_TO_INDEX(off) ((off) >> VFIO_FSL_MC_OFFSET_SHIFT) + +#define VFIO_FSL_MC_INDEX_TO_OFFSET(index) \ + ((u64)(index) << VFIO_FSL_MC_OFFSET_SHIFT) + +struct vfio_fsl_mc_region { + u32 flags; + u32 type; + u64 addr; + resource_size_t size; +}; + struct vfio_fsl_mc_device { struct fsl_mc_device *mc_dev; struct notifier_block nb; + int refcnt; + struct vfio_fsl_mc_region *regions; + struct mutex driver_lock; }; #endif /* VFIO_FSL_MC_PRIVATE_H */ |