From patchwork Thu Oct 15 07:16:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xu Yilun X-Patchwork-Id: 11838677 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 5541C61C for ; Thu, 15 Oct 2020 07:21:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3DCA72224A for ; Thu, 15 Oct 2020 07:21:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728425AbgJOHVy (ORCPT ); Thu, 15 Oct 2020 03:21:54 -0400 Received: from mga06.intel.com ([134.134.136.31]:8198 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728419AbgJOHVx (ORCPT ); Thu, 15 Oct 2020 03:21:53 -0400 IronPort-SDR: nxAX0roFXNUVQFA/DGdeWN4fYsFxAMaQanwEY+JxLbqT6NEzzL8L34IEhFx9pJijDZZneozuKO hyvy06fR1UkA== X-IronPort-AV: E=McAfee;i="6000,8403,9774"; a="227929731" X-IronPort-AV: E=Sophos;i="5.77,378,1596524400"; d="scan'208";a="227929731" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Oct 2020 00:21:53 -0700 IronPort-SDR: cLsB2cKjrtSk/cKB8TJe53henmVsRvkVFFkkr/w8tfSFnQgHcVIqgKP7nWnd+jnktFXGWuJxQp oAlwkfre1XYw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,378,1596524400"; d="scan'208";a="531145075" Received: from yilunxu-optiplex-7050.sh.intel.com ([10.239.159.141]) by orsmga005.jf.intel.com with ESMTP; 15 Oct 2020 00:21:49 -0700 From: Xu Yilun To: mdf@kernel.org, krzk@kernel.org, linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org Cc: gregkh@linuxfoundation.org, trix@redhat.com, lgoncalv@redhat.com, yilun.xu@intel.com, hao.wu@intel.com, Matthew Gerlach , Russ Weight Subject: [PATCH v10 2/6] fpga: dfl: move dfl_device_id to mod_devicetable.h Date: Thu, 15 Oct 2020 15:16:29 +0800 Message-Id: <1602746193-10626-3-git-send-email-yilun.xu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1602746193-10626-1-git-send-email-yilun.xu@intel.com> References: <1602746193-10626-1-git-send-email-yilun.xu@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-fpga@vger.kernel.org In order to support MODULE_DEVICE_TABLE() for dfl device driver, this patch moves struct dfl_device_id to mod_devicetable.h Some brief description for DFL (Device Feature List) is added to make the DFL known to the whole kernel. Signed-off-by: Xu Yilun Signed-off-by: Wu Hao Signed-off-by: Matthew Gerlach Signed-off-by: Russ Weight Reviewed-by: Tom Rix Acked-by: Wu Hao Signed-off-by: Moritz Fischer --- v2: fix the order for the header file v3: rebase the patch for dfl bus name change v9: rebase the patch for dfl bus name changes back to "dfl" v10: add some comments to describe what is DFL. --- drivers/fpga/dfl.h | 13 +------------ include/linux/mod_devicetable.h | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+), 12 deletions(-) diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h index ac373b1..549c790 100644 --- a/drivers/fpga/dfl.h +++ b/drivers/fpga/dfl.h @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -526,18 +527,6 @@ enum dfl_id_type { }; /** - * struct dfl_device_id - dfl device identifier - * @type: DFL FIU type of the device. See enum dfl_id_type. - * @feature_id: feature identifier local to its DFL FIU type. - * @driver_data: driver specific data. - */ -struct dfl_device_id { - u16 type; - u16 feature_id; - unsigned long driver_data; -}; - -/** * struct dfl_device - represent an dfl device on dfl bus * * @dev: generic device interface. diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 5b08a47..e4870e5 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -838,4 +838,28 @@ struct mhi_device_id { kernel_ulong_t driver_data; }; +/* + * DFL (Device Feature List) + * + * DFL defines a linked list of feature headers within the device MMIO space to + * provide an extensible way of adding features. Software can walk through these + * predefined data structures to enumerate features. It is now used in the FPGA. + * See Documentation/fpga/dfl.rst for more information. + * + * The dfl bus type is introduced to match the individual feature devices (dfl + * devices) for specific dfl drivers. + */ + +/** + * struct dfl_device_id - dfl device identifier + * @type: DFL FIU type of the device. See enum dfl_id_type. + * @feature_id: feature identifier local to its DFL FIU type. + * @driver_data: driver specific data. + */ +struct dfl_device_id { + __u16 type; + __u16 feature_id; + unsigned long driver_data; +}; + #endif /* LINUX_MOD_DEVICETABLE_H */