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rpmsg: glink: Use the intents passed by remote

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

Acked-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Sricharan R 2017-08-24 12:51:40 +05:30 committed by Bjorn Andersson
parent dacbb35e93
commit 11cb45a7f8
1 changed files with 33 additions and 2 deletions
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35
drivers/rpmsg/qcom_glink_native.c
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@ -1110,19 +1110,50 @@ static int __qcom_glink_send(struct glink_channel *channel,
void *data, int len, bool wait) void *data, int len, bool wait)
{ {
struct qcom_glink *glink = channel->glink; struct qcom_glink *glink = channel->glink;
struct glink_core_rx_intent *intent = NULL;
struct glink_core_rx_intent *tmp;
int iid = 0;
struct { struct {
struct glink_msg msg; struct glink_msg msg;
__le32 chunk_size; __le32 chunk_size;
__le32 left_size; __le32 left_size;
} __packed req; } __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.cmd = cpu_to_le16(RPM_CMD_TX_DATA);
req.msg.param1 = cpu_to_le16(channel->lcid); 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.chunk_size = cpu_to_le32(len);
req.left_size = cpu_to_le32(0); 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) static int qcom_glink_send(struct rpmsg_endpoint *ept, void *data, int len)