diff options
| -rw-r--r-- | drivers/platform/msm/mhi/mhi_ring_ops.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/platform/msm/mhi/mhi_ring_ops.c b/drivers/platform/msm/mhi/mhi_ring_ops.c index e5a6dd51f51a..7063053ca841 100644 --- a/drivers/platform/msm/mhi/mhi_ring_ops.c +++ b/drivers/platform/msm/mhi/mhi_ring_ops.c @@ -48,6 +48,9 @@ static int add_element(struct mhi_ring *ring, void **rp, *assigned_addr = (char *)ring->wp; *wp = (void *)(((d_wp + 1) % ring_size) * ring->el_size + (uintptr_t)ring->base); + + /* force update visible to other cores */ + smp_wmb(); return 0; } @@ -101,6 +104,9 @@ int delete_element(struct mhi_ring *ring, void **rp, *rp = (void *)(((d_rp + 1) % ring_size) * ring->el_size + (uintptr_t)ring->base); + + /* force update visible to other cores */ + smp_wmb(); return 0; } |