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-rw-r--r--src/svm/svm_fifo.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h
index a8aea00996e..ec32fd5f40d 100644
--- a/src/svm/svm_fifo.h
+++ b/src/svm/svm_fifo.h
@@ -85,6 +85,12 @@ typedef enum
SVM_FIFO_FULL = -2,
} svm_fifo_err_t;
+typedef struct svm_fifo_segment_
+{
+ u8 *data;
+ u32 len;
+} svm_fifo_segment_t;
+
#if SVM_FIFO_TRACE
#define svm_fifo_trace_add(_f, _s, _l, _t) \
{ \
@@ -147,8 +153,8 @@ svm_fifo_has_ooo_data (svm_fifo_t * f)
always_inline u8
svm_fifo_set_event (svm_fifo_t * f)
{
-// return __sync_lock_test_and_set (&f->has_event, 1) == 0;
-// return __sync_bool_compare_and_swap (&f->has_event, 0, 1);
+ /* return __sync_lock_test_and_set (&f->has_event, 1) == 0;
+ return __sync_bool_compare_and_swap (&f->has_event, 0, 1); */
return !__atomic_exchange_n (&f->has_event, 1, __ATOMIC_RELEASE);
}
@@ -175,6 +181,8 @@ int svm_fifo_dequeue_nowait (svm_fifo_t * f, u32 max_bytes, u8 * copy_here);
int svm_fifo_peek (svm_fifo_t * f, u32 offset, u32 max_bytes, u8 * copy_here);
int svm_fifo_dequeue_drop (svm_fifo_t * f, u32 max_bytes);
void svm_fifo_dequeue_drop_all (svm_fifo_t * f);
+int svm_fifo_segments (svm_fifo_t * f, svm_fifo_segment_t * fs);
+void svm_fifo_segments_free (svm_fifo_t * f, svm_fifo_segment_t * fs);
u32 svm_fifo_number_ooo_segments (svm_fifo_t * f);
ooo_segment_t *svm_fifo_first_ooo_segment (svm_fifo_t * f);
void svm_fifo_init_pointers (svm_fifo_t * f, u32 pointer);