Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752928AbdHPRXK (ORCPT ); Wed, 16 Aug 2017 13:23:10 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:54276 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752031AbdHPRU3 (ORCPT ); Wed, 16 Aug 2017 13:20:29 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 221E460729 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=sricharan@codeaurora.org From: Sricharan R To: ohad@wizery.com, bjorn.andersson@linaro.org, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: sricharan@codeaurora.org Subject: [PATCH 14/18] rpmsg: glink: Add announce_create ops and preallocate intents Date: Wed, 16 Aug 2017 22:49:07 +0530 Message-Id: <1502903951-5403-15-git-send-email-sricharan@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1502903951-5403-1-git-send-email-sricharan@codeaurora.org> References: <1502903951-5403-1-git-send-email-sricharan@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1947 Lines: 53 Preallocate local intent buffers and pass the intent ids to the remote. This way there are some default intents available for the remote to start sending data without having to wait by sending intent requests. Do this by adding the rpmsg announce_create ops, which gets called right after the rpmsg device gets probed. Signed-off-by: Sricharan R Signed-off-by: Bjorn Andersson --- drivers/rpmsg/qcom_glink_native.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c index b8db74a..c111046 100644 --- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -995,6 +995,25 @@ static struct rpmsg_endpoint *qcom_glink_create_ept(struct rpmsg_device *rpdev, return ept; } +static int qcom_glink_announce_create(struct rpmsg_device *rpdev) +{ + struct glink_channel *channel = to_glink_channel(rpdev->ept); + struct glink_core_rx_intent *intent; + struct qcom_glink *glink = channel->glink; + int num_intents = glink->intentless ? 0 : 5; + + /* Channel is now open, advertise base set of intents */ + while (num_intents--) { + intent = qcom_glink_alloc_intent(glink, channel, SZ_1K, true); + if (!intent) + break; + + qcom_glink_advertise_intent(glink, channel, intent); + } + + return 0; +} + static void qcom_glink_destroy_ept(struct rpmsg_endpoint *ept) { struct glink_channel *channel = to_glink_channel(ept); @@ -1070,6 +1089,7 @@ static struct device_node *qcom_glink_match_channel(struct device_node *node, static const struct rpmsg_device_ops glink_device_ops = { .create_ept = qcom_glink_create_ept, + .announce_create = qcom_glink_announce_create, }; static const struct rpmsg_endpoint_ops glink_endpoint_ops = { -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation