Merge tag 'rpmsg-v4.14' of git://github.com/andersson/remoteproc

Pull rpmsg updates from Bjorn Andersson:
 "This extends the Qualcomm GLINK implementation to support the
  additional features used for communicating with modem and DSP
  coprocessors in modern Qualcomm platforms.

  In addition to this there's support for placing virtio RPMSG buffers
  in non-System RAM"

* tag 'rpmsg-v4.14' of git://github.com/andersson/remoteproc: (29 commits)
  rpmsg: glink: initialize ret to zero to ensure error status check is correct
  rpmsg: glink: fix null pointer dereference on a null intent
  dt-bindings: soc: qcom: Extend GLINK to cover SMEM
  remoteproc: qcom: adsp: Allow defining GLINK edge
  rpmsg: glink: Export symbols from common code
  rpmsg: glink: Release idr lock before returning on error
  rpmsg: glink: Handle remote rx done command
  rpmsg: glink: Request for intents when unavailable
  rpmsg: glink: Use the intents passed by remote
  rpmsg: glink: Receive and store the remote intent buffers
  rpmsg: glink: Add announce_create ops and preallocate intents
  rpmsg: glink: Add rx done command
  rpmsg: glink: Make RX FIFO peak accessor to take an offset
  rpmsg: glink: Use the local intents when receiving data
  rpmsg: glink: Add support for TX intents
  rpmsg: glink: Fix idr_lock from mutex to spinlock
  rpmsg: glink: Add support for transport version negotiation
  rpmsg: glink: Introduce glink smem based transport
  rpmsg: glink: Do a mbox_free_channel in remove
  rpmsg: glink: Return -EAGAIN when there is no FIFO space
  ...

1 files changed, 27 insertions, 0 deletions

diff --git a/include/linux/rpmsg/qcom_glink.h b/include/linux/rpmsg/qcom_glink.h
new file mode 100644
index 000000000000..a622f029836e
--- /dev/null
+++ b/include/linux/rpmsg/qcom_glink.h
@@ -0,0 +1,27 @@
+#ifndef _LINUX_RPMSG_QCOM_GLINK_H
+#define _LINUX_RPMSG_QCOM_GLINK_H
+
+#include <linux/device.h>
+
+struct qcom_glink;
+
+#if IS_ENABLED(CONFIG_RPMSG_QCOM_GLINK_SMEM)
+
+struct qcom_glink *qcom_glink_smem_register(struct device *parent,
+					    struct device_node *node);
+void qcom_glink_smem_unregister(struct qcom_glink *glink);
+
+#else
+
+static inline struct qcom_glink *
+qcom_glink_smem_register(struct device *parent,
+			 struct device_node *node)
+{
+	return NULL;
+}
+
+static inline void qcom_glink_smem_unregister(struct qcom_glink *glink) {}
+
+#endif
+
+#endif