buf: fixes for CONFIG_INCOHERENT=0 builds

there's no point with cache writeback/invalidate
for coherent architectures. Also the buffer may be set
as "shared" at any moment, not only at creation time

Signed-off-by: Marcin Szkudlinski <marcin.szkudlinski@intel.com>

Author: marcinszkudlinski

src/include/sof/audio/buffer.h

@@ -249,14 +249,18 @@ bool buffer_params_match(struct comp_buffer *buffer,
 
 static inline void buffer_stream_invalidate(struct comp_buffer *buffer, uint32_t bytes)
 {
+#if CONFIG_INCOHERENT
 	if (buffer->is_shared)
 		audio_stream_invalidate(&buffer->stream, bytes);
+#endif
 }
 
 static inline void buffer_stream_writeback(struct comp_buffer *buffer, uint32_t bytes)
 {
+#if CONFIG_INCOHERENT
 	if (buffer->is_shared)
 		audio_stream_writeback(&buffer->stream, bytes);
+#endif
 }
 
 

src/ipc/ipc-helper.c

@@ -184,9 +184,12 @@ int comp_buffer_connect(struct comp_dev *comp, uint32_t comp_core,
 {
 	/* check if it's a connection between cores */
 	if (buffer->core != comp_core) {
+#if CONFIG_INCOHERENT
 		/* buffer must be shared */
 		assert(buffer->is_shared);
-
+#else
+		buffer->is_shared = true;
+#endif
 		if (!comp->is_shared)
 			comp_make_shared(comp);
 	}