Index: uspace/drv/audio/sb16/dsp.c
===================================================================
--- uspace/drv/audio/sb16/dsp.c	(revision 5b1adf5ac9d78bb54436ea1fc8c0a826c0c4bdf5)
+++ uspace/drv/audio/sb16/dsp.c	(revision ba2be23ed5b64c117eabda6070c8ad4ea3c56df6)
@@ -173,19 +173,23 @@
 {
 	assert(dsp);
-	if (size > MAX_BUFFER_SIZE || size == 0 || (size % 2) == 1)
+	
+	if ((size > MAX_BUFFER_SIZE) || (size == 0) || ((size % 2) == 1))
 		size = MAX_BUFFER_SIZE;
-	void *buffer = NULL, *pa = NULL;
-	int ret = dmamem_map_anonymous(size, AS_AREA_WRITE | AS_AREA_READ,
-	    0, &pa, &buffer);
+	
+	uintptr_t pa = 0;
+	void *buffer = NULL;
+	
+	int ret = dmamem_map_anonymous(size, DMAMEM_16MiB,
+	    AS_AREA_WRITE | AS_AREA_READ, 0, &pa, &buffer);
 	if (ret != EOK) {
 		ddf_log_error("Failed to allocate DMA buffer.");
 		return ENOMEM;
 	}
-
-	ddf_log_verbose("Setup dma buffer at %p(%p) %zu.", buffer, pa, size);
-	assert((uintptr_t)pa < (1 << 25));
-
+	
+	ddf_log_verbose("Setup DMA buffer at %p (%zu) %zu.", buffer, pa, size);
+	assert(pa < (1 << 24));
+	
 	/* Setup 16 bit channel */
-	ret = setup_dma(dsp, (uintptr_t)pa, size);
+	ret = setup_dma(dsp, pa, size);
 	if (ret == EOK) {
 		dsp->buffer.data = buffer;
@@ -196,4 +200,5 @@
 		dmamem_unmap_anonymous(buffer);
 	}
+	
 	return ret;
 }