From patchwork Fri Jul 5 00:23:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wu, Hao" X-Patchwork-Id: 11031971 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0528B14F6 for ; Fri, 5 Jul 2019 00:42:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E733828922 for ; Fri, 5 Jul 2019 00:42:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DB86428A38; Fri, 5 Jul 2019 00:42:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 897BF28922 for ; Fri, 5 Jul 2019 00:42:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727923AbfGEAmR (ORCPT ); Thu, 4 Jul 2019 20:42:17 -0400 Received: from mga03.intel.com ([134.134.136.65]:40861 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727914AbfGEAmQ (ORCPT ); Thu, 4 Jul 2019 20:42:16 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Jul 2019 17:42:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,453,1557212400"; d="scan'208";a="185074810" Received: from hao-dev.bj.intel.com ([10.238.157.65]) by fmsmga001.fm.intel.com with ESMTP; 04 Jul 2019 17:42:14 -0700 From: Wu Hao To: gregkh@linuxfoundation.org, mdf@kernel.org, linux-fpga@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, atull@kernel.org, Wu Hao , Xu Yilun Subject: [PATCH v2 09/11] fpga: dfl: afu: add STP (SignalTap) support Date: Fri, 5 Jul 2019 08:23:56 +0800 Message-Id: <1562286238-11413-10-git-send-email-hao.wu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1562286238-11413-1-git-send-email-hao.wu@intel.com> References: <1562286238-11413-1-git-send-email-hao.wu@intel.com> Sender: linux-fpga-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fpga@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP STP (SignalTap) is one of the private features under the port for debugging. This patch adds private feature driver support for it to allow userspace applications to mmap related mmio region and provide STP service. Signed-off-by: Xu Yilun Signed-off-by: Wu Hao Acked-by: Moritz Fischer Acked-by: Alan Tull Signed-off-by: Moritz Fischer --- drivers/fpga/dfl-afu-main.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c index 15dd4cb..395f96e 100644 --- a/drivers/fpga/dfl-afu-main.c +++ b/drivers/fpga/dfl-afu-main.c @@ -514,6 +514,36 @@ static void port_afu_uinit(struct platform_device *pdev, .uinit = port_afu_uinit, }; +static int port_stp_init(struct platform_device *pdev, + struct dfl_feature *feature) +{ + struct resource *res = &pdev->resource[feature->resource_index]; + + dev_dbg(&pdev->dev, "PORT STP Init.\n"); + + return afu_mmio_region_add(dev_get_platdata(&pdev->dev), + DFL_PORT_REGION_INDEX_STP, + resource_size(res), res->start, + DFL_PORT_REGION_MMAP | DFL_PORT_REGION_READ | + DFL_PORT_REGION_WRITE); +} + +static void port_stp_uinit(struct platform_device *pdev, + struct dfl_feature *feature) +{ + dev_dbg(&pdev->dev, "PORT STP UInit.\n"); +} + +static const struct dfl_feature_id port_stp_id_table[] = { + {.id = PORT_FEATURE_ID_STP,}, + {0,} +}; + +static const struct dfl_feature_ops port_stp_ops = { + .init = port_stp_init, + .uinit = port_stp_uinit, +}; + static struct dfl_feature_driver port_feature_drvs[] = { { .id_table = port_hdr_id_table, @@ -528,6 +558,10 @@ static void port_afu_uinit(struct platform_device *pdev, .ops = &port_err_ops, }, { + .id_table = port_stp_id_table, + .ops = &port_stp_ops, + }, + { .ops = NULL, } };