From patchwork Mon Jan 20 12:23:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Marussi X-Patchwork-Id: 11341991 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7AB9413A4 for ; Mon, 20 Jan 2020 12:25:19 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 47AFD208E4 for ; Mon, 20 Jan 2020 12:25:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="iNTHu3XC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 47AFD208E4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=JiSZO0RlhFa9Sfrk+JEEqt2h82/xooFLomqkCZdteWE=; b=iNTHu3XCDUYeSptC1mgQxyGU9J MQKVTphIWpSGEjiQ479xMFOomaVrHrYOlPIQ0NB6bC0+dOopJH9nepK5Sw9krCE7BPxMQCUjfcSfo ANNzLzmanjggym4GWc+M6QduM8eYtD5fXkkc5JrU0dCIeoAtpPqhu7XG8FuVPw9bwMBWs+IPjnGaK pDVOmLOU9Rr6Sc2X2VeIofotYYF6BW/UZjs8g3x8DYBr3RudCAVlYNeriQkwA/XfNrWTIQyQiPb7K ozpZK/fm9CcxI4Mc+fUUNQ+73TrVS4E6iJcWdhndPz2HCmbsmu4khK/pikMlFBTD99MvVHPXxSW59 uR+wvg7Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1itW7J-0003Ed-0i; Mon, 20 Jan 2020 12:25:17 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1itW6b-0001W5-QK for linux-arm-kernel@lists.infradead.org; Mon, 20 Jan 2020 12:24:37 +0000 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 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> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200120_042433_917277_7ACA4994 X-CRM114-Status: GOOD ( 11.87 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [217.140.110.172 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: cristian.marussi@arm.com, james.quinlan@broadcom.com, lukasz.luba@arm.com, sudeep.holla@arm.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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);