diff options
| author | Sanchayan Maity <maitysanchayan@gmail.com> | 2017-09-27 11:22:48 +0530 |
|---|---|---|
| committer | Stefan Agner <stefan.agner@toradex.com> | 2017-09-28 12:33:21 +0200 |
| commit | ddfb8ccfdff53ff7247d903837eed2c3099fd2a6 (patch) | |
| tree | 17e764701293b328ab860fc077aa818f818c6db7 /middleware/multicore/open-amp/virtio/virtio_ring.h | |
| parent | 23958fc05fe76b0d91e156da0a3b5619c81fe3c0 (diff) | |
middleware: multicore: open-amp: Update open-amp for Vybrid
Update open-amp for Vybrid bringing it in sync with FreeRTOS BSP
1.0.1 release from NXP for iMX7.
The file and directory structure for "porting" which contains
the platform specific part of open-amp has been kept same. Only
the implementation has either been updated or added.
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Diffstat (limited to 'middleware/multicore/open-amp/virtio/virtio_ring.h')
| -rw-r--r-- | middleware/multicore/open-amp/virtio/virtio_ring.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/middleware/multicore/open-amp/virtio/virtio_ring.h b/middleware/multicore/open-amp/virtio/virtio_ring.h index fc3eb08..7a861f3 100644 --- a/middleware/multicore/open-amp/virtio/virtio_ring.h +++ b/middleware/multicore/open-amp/virtio/virtio_ring.h @@ -38,7 +38,7 @@ /* This marks a buffer as write-only (otherwise read-only). */ #define VRING_DESC_F_WRITE 2 /* This means the buffer contains a list of buffer descriptors. */ -#define VRING_DESC_F_INDIRECT 4 /*not used?*/ +#define VRING_DESC_F_INDIRECT 4 /* The Host uses this in used->flags to advise the Guest: don't kick me * when you add a buffer. It's unreliable, so it's simply an @@ -65,7 +65,7 @@ struct vring_desc { struct vring_avail { uint16_t flags; uint16_t idx; - uint16_t ring[0]; + uint16_t ring[1]; }; /* uint32_t is used here for ids for padding reasons. */ @@ -79,7 +79,7 @@ struct vring_used_elem { struct vring_used { uint16_t flags; uint16_t idx; - struct vring_used_elem ring[0]; + struct vring_used_elem ring[1]; }; struct vring { @@ -121,7 +121,7 @@ struct vring { * versa. They are at the end for backwards compatibility. */ #define vring_used_event(vr) ((vr)->avail->ring[(vr)->num]) -#define vring_avail_event(vr) ((vr)->used->ring[(vr)->num].id & 0xFFFF) +#define vring_avail_event(vr) ((vr)->used->ring[(vr)->num].id & 0xFFFF) static inline int vring_size(unsigned int num, unsigned long align) @@ -145,7 +145,7 @@ vring_init(struct vring *vr, unsigned int num, uint8_t *p, vr->desc = (struct vring_desc *) p; vr->avail = (struct vring_avail *) (p + num * sizeof(struct vring_desc)); - vr->used = (void *) + vr->used = (struct vring_used *) (((unsigned long) &vr->avail->ring[num] + align-1) & ~(align-1)); } |