From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 141ADC2D0DB for ; Mon, 20 Jan 2020 12:24:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E8948208E4 for ; Mon, 20 Jan 2020 12:24:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729139AbgATMY5 (ORCPT ); Mon, 20 Jan 2020 07:24:57 -0500 Received: from foss.arm.com ([217.140.110.172]:59526 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728894AbgATMYb (ORCPT ); Mon, 20 Jan 2020 07:24:31 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4A4E613A1; Mon, 20 Jan 2020 04:24:31 -0800 (PST) Received: from e120937-lin.cambridge.arm.com (e120937-lin.cambridge.arm.com [10.1.197.50]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 648423F68E; Mon, 20 Jan 2020 04:24:30 -0800 (PST) From: Cristian Marussi To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: sudeep.holla@arm.com, lukasz.luba@arm.com, james.quinlan@broadcom.com, cristian.marussi@arm.com Subject: [RFC PATCH 06/11] firmware: arm_scmi: Enable core notifications Date: Mon, 20 Jan 2020 12:23:28 +0000 Message-Id: <20200120122333.46217-7-cristian.marussi@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200120122333.46217-1-cristian.marussi@arm.com> References: <20200120122333.46217-1-cristian.marussi@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Initialize and enable SCMI Notification core support during bus/driver init and probe phases: protocol can register their supported events and users can register their callbacks for interested events. Signed-off-by: Cristian Marussi --- drivers/firmware/arm_scmi/bus.c | 3 +++ drivers/firmware/arm_scmi/driver.c | 7 +++++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c index db55c43a2cbd..80d5ad29d205 100644 --- a/drivers/firmware/arm_scmi/bus.c +++ b/drivers/firmware/arm_scmi/bus.c @@ -14,6 +14,7 @@ #include #include "common.h" +#include "notify.h" static DEFINE_IDA(scmi_bus_id); static DEFINE_IDR(scmi_protocols); @@ -234,6 +235,7 @@ static int __init scmi_bus_init(void) { int retval; + scmi_notification_init(); retval = bus_register(&scmi_bus_type); if (retval) pr_err("scmi protocol bus register failed (%d)\n", retval); @@ -245,6 +247,7 @@ subsys_initcall(scmi_bus_init); static void __exit scmi_bus_exit(void) { scmi_devices_unregister(); + scmi_notification_exit(); bus_unregister(&scmi_bus_type); ida_destroy(&scmi_bus_id); } diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index a43fad29de11..a60559201f2d 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -28,6 +28,7 @@ #include #include "common.h" +#include "notify.h" #define CREATE_TRACE_POINTS #include @@ -350,14 +351,14 @@ __scmi_xfer_put(struct scmi_xfers_info *minfo, struct scmi_xfer *xfer) static void scmi_handle_notification(struct scmi_chan_info *cinfo, u32 msg_hdr) { - ktime_t ts; + u64 ts; struct scmi_xfer *xfer; struct device *dev = cinfo->dev; struct scmi_info *info = handle_to_scmi_info(cinfo->handle); struct scmi_xfers_info *minfo = &info->rx_minfo; struct scmi_shared_mem __iomem *mem = cinfo->payload; - ts = ktime_get_boottime(); + ts = ktime_get_boottime_ns(); xfer = scmi_xfer_get(cinfo->handle, minfo); if (IS_ERR(xfer)) { dev_err(dev, "failed to get free message slot (%ld)\n", @@ -370,6 +371,8 @@ static void scmi_handle_notification(struct scmi_chan_info *cinfo, u32 msg_hdr) unpack_scmi_header(msg_hdr, &xfer->hdr); scmi_dump_header_dbg(dev, &xfer->hdr); scmi_fetch_notification(xfer, info->desc->max_msg_size, mem); + scmi_notify(xfer->hdr.protocol_id, xfer->hdr.id, xfer->rx.buf, + xfer->rx.len, ts); __scmi_xfer_put(minfo, xfer); iowrite32(SCMI_SHMEM_CHAN_STAT_CHANNEL_FREE, &mem->channel_status); -- 2.17.1