From patchwork Tue Jul 23 04:51:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wu, Hao" X-Patchwork-Id: 11053797 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 6C26E13AC for ; Tue, 23 Jul 2019 05:10:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5B19622B1F for ; Tue, 23 Jul 2019 05:10:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4F6882859E; Tue, 23 Jul 2019 05:10:31 +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 EF94A22B1F for ; Tue, 23 Jul 2019 05:10:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727735AbfGWFKa (ORCPT ); Tue, 23 Jul 2019 01:10:30 -0400 Received: from mga05.intel.com ([192.55.52.43]:1868 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732854AbfGWFKN (ORCPT ); Tue, 23 Jul 2019 01:10:13 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Jul 2019 22:10:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,297,1559545200"; d="scan'208";a="196992384" Received: from hao-dev.bj.intel.com ([10.238.157.65]) by fmsmga002.fm.intel.com with ESMTP; 22 Jul 2019 22:10:11 -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, linux-doc@vger.kernel.org, atull@kernel.org, Wu Hao , Xu Yilun Subject: [PATCH v3 09/12] fpga: dfl: afu: add STP (SignalTap) support Date: Tue, 23 Jul 2019 12:51:32 +0800 Message-Id: <1563857495-26692-10-git-send-email-hao.wu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1563857495-26692-1-git-send-email-hao.wu@intel.com> References: <1563857495-26692-1-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, } };