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-rw-r--r--dma/nwl_engine.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/dma/nwl_engine.c b/dma/nwl_engine.c
index 1fc147f..037ab02 100644
--- a/dma/nwl_engine.c
+++ b/dma/nwl_engine.c
@@ -242,7 +242,10 @@ int dma_nwl_write_fragment(pcilib_dma_context_t *vctx, pcilib_dma_engine_t dma,
}
void *buf = pcilib_kmem_get_block_ua(ctx->pcilib, info->pages, bufnum);
+
+ pcilib_kmem_sync_block(ctx->pcilib, info->pages, PCILIB_KMEM_SYNC_FROMDEVICE, bufnum);
memcpy(buf, data, block_size);
+ pcilib_kmem_sync_block(ctx->pcilib, info->pages, PCILIB_KMEM_SYNC_TODEVICE, bufnum);
err = dma_nwl_push_buffer(ctx, info, block_size, (flags&PCILIB_DMA_FLAG_EOP)&&((pos + block_size) == size), timeout);
if (err) {