diff options
Diffstat (limited to 'src/svm')
| -rw-r--r-- | src/svm/svm_fifo.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h index b5b26ac479b..ce73be2d0f0 100644 --- a/src/svm/svm_fifo.h +++ b/src/svm/svm_fifo.h @@ -45,6 +45,7 @@ typedef enum svm_fifo_tx_ntf_ SVM_FIFO_NO_TX_NOTIF = 0, SVM_FIFO_WANT_TX_NOTIF = 1, SVM_FIFO_WANT_TX_NOTIF_IF_FULL = 2, + SVM_FIFO_WANT_TX_NOTIF_IF_EMPTY = 4, } svm_fifo_tx_ntf_t; typedef struct @@ -820,15 +821,18 @@ svm_fifo_needs_tx_ntf (svm_fifo_t * f, u32 n_last_deq) return 0; else if (want_ntf & SVM_FIFO_WANT_TX_NOTIF) return 1; - else if (want_ntf & SVM_FIFO_WANT_TX_NOTIF_IF_FULL) + if (want_ntf & SVM_FIFO_WANT_TX_NOTIF_IF_FULL) { u32 max_deq = svm_fifo_max_dequeue_cons (f); u32 nitems = f->nitems; if (!f->has_tx_ntf && max_deq < nitems && max_deq + n_last_deq >= nitems) return 1; - - return 0; + } + if (want_ntf & SVM_FIFO_WANT_TX_NOTIF_IF_EMPTY) + { + if (!f->has_tx_ntf && svm_fifo_is_empty (f)) + return 1; } return 0; } |