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Commit 11cb45a7 authored by Sricharan R's avatar Sricharan R Committed by Bjorn Andersson
Browse files

rpmsg: glink: Use the intents passed by remote 



While sending data, use the remote intent id buffer of suitable size
that was passed by remote previously.

Acked-by: default avatarArun Kumar Neelakantam <aneela@codeaurora.org>
Signed-off-by: default avatarSricharan R <sricharan@codeaurora.org>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent dacbb35e

drivers/rpmsg/qcom_glink_native.c

+33 −2
Original line number Diff line number Diff line
@@ -1110,19 +1110,50 @@ static int __qcom_glink_send(struct glink_channel *channel, 
			     void *data, int len, bool wait)

{

	struct qcom_glink *glink = channel->glink;

	struct glink_core_rx_intent *intent = NULL;

	struct glink_core_rx_intent *tmp;

	int iid = 0;

	struct {

		struct glink_msg msg;

		__le32 chunk_size;

		__le32 left_size;

	} __packed req;

	int ret;

	unsigned long flags;



	if (!glink->intentless) {

		if (!intent) {

			spin_lock_irqsave(&channel->intent_lock, flags);

			idr_for_each_entry(&channel->riids, tmp, iid) {

				if (tmp->size >= len && !tmp->in_use) {

					tmp->in_use = true;

					intent = tmp;

					break;

				}

			}

			spin_unlock_irqrestore(&channel->intent_lock, flags);



			/* We found an available intent */

			if (!intent)

				return -EBUSY;

		}



		iid = intent->id;

	}



	req.msg.cmd = cpu_to_le16(RPM_CMD_TX_DATA);

	req.msg.param1 = cpu_to_le16(channel->lcid);

	req.msg.param2 = cpu_to_le32(channel->rcid);

	req.msg.param2 = cpu_to_le32(iid);

	req.chunk_size = cpu_to_le32(len);

	req.left_size = cpu_to_le32(0);



	return qcom_glink_tx(glink, &req, sizeof(req), data, len, wait);

	ret = qcom_glink_tx(glink, &req, sizeof(req), data, len, wait);



	/* Mark intent available if we failed */

	if (ret)

		intent->in_use = false;



	return ret;

}



static int qcom_glink_send(struct rpmsg_endpoint *ept, void *data, int len)