From patchwork Wed Dec 28 18:16:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: matthew.gerlach@linux.intel.com X-Patchwork-Id: 637550 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4F65C3DA7C for ; Wed, 28 Dec 2022 18:16:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233769AbiL1SQM (ORCPT ); Wed, 28 Dec 2022 13:16:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53226 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232696AbiL1SQE (ORCPT ); Wed, 28 Dec 2022 13:16:04 -0500 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5205175AD; Wed, 28 Dec 2022 10:16:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1672251362; x=1703787362; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+dVehsztD45Sr+pCyO849V3M3ZLcVlwyKHGIcq6fnKw=; b=h3mXuBzE50tjJghmUbD+PjVyte1OyqDL4MmP4x+uN/i2Ef53W8vn0mc/ KRs0+J4dc0oaOrmmAEwovr+sPZNa50M3SkUL46xylk64M3fFFNxublISs DyxWdRQVp1u0A471uav6zp+0Ai/2lyEZhnmjrHuMKPu7+LlymJIW3IPnt m2GgzH49vjiYSlVzqD6TjycgqVEjSvp9VpndJGALlAu29RaPfU6GWkwEd BnXbnjoOlp1EmpR9ojdDQWRu6SAq+1ePQ+etxs4jq5CnzDBGE0/PeLQA8 EfNmUtODmkeldEBM9HsC1q4ahHcrqRG71SULxJLGU8yihwj3MEJe+OELN g==; X-IronPort-AV: E=McAfee;i="6500,9779,10574"; a="348121106" X-IronPort-AV: E=Sophos;i="5.96,281,1665471600"; d="scan'208";a="348121106" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Dec 2022 10:16:00 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10574"; a="653393079" X-IronPort-AV: E=Sophos;i="5.96,281,1665471600"; d="scan'208";a="653393079" Received: from rhweight-wrk1.ra.intel.com ([137.102.106.139]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Dec 2022 10:15:59 -0800 From: matthew.gerlach@linux.intel.com To: hao.wu@intel.com, yilun.xu@intel.com, russell.h.weight@intel.com, basheer.ahmed.muddebihal@intel.com, trix@redhat.com, mdf@kernel.org, linux-fpga@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, tianfei.zhang@intel.com, corbet@lwn.net, gregkh@linuxfoundation.org, linux-serial@vger.kernel.org, jirislaby@kernel.org, geert+renesas@glider.be, andriy.shevchenko@linux.intel.com, niklas.soderlund+renesas@ragnatech.se, macro@orcam.me.uk, johan@kernel.org, lukas@wunner.de, ilpo.jarvinen@linux.intel.com, marpagan@redhat.com, bagasdotme@gmail.com Cc: Basheer Ahmed Muddebihal , Matthew Gerlach Subject: [PATCH v8 2/4] fpga: dfl: Add DFHv1 Register Definitions Date: Wed, 28 Dec 2022 10:16:22 -0800 Message-Id: <20221228181624.1793433-3-matthew.gerlach@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221228181624.1793433-1-matthew.gerlach@linux.intel.com> References: <20221228181624.1793433-1-matthew.gerlach@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org From: Basheer Ahmed Muddebihal This patch adds the definitions for DFHv1 header and related register bitfields. Signed-off-by: Basheer Ahmed Muddebihal Co-developed-by: Matthew Gerlach Signed-off-by: Matthew Gerlach Reviewed-by: Ilpo Järvinen Reviewed-by: Andy Shevchenko --- v8: add Rb Andy Shevchenko v7: no change v6: remove parameter definitions from include/linux/dfl.h v5: consistently use fields for parameter data s/EOL/EOP/ to match doc remove unneeded mask added Co-developed-by v4: s/MSIX/MSI_X/g move kerneldoc to implementation don't change copyright date v3: keep DFHv1 definitions "hidden" in drivers/fpga/dfl.h v2: clean up white space and one line comments remove extra space in commit use uniform number of digits in constants don't change copyright date because of removed content --- drivers/fpga/dfl.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h index 06cfcd5e84bb..fc59f33367ee 100644 --- a/drivers/fpga/dfl.h +++ b/drivers/fpga/dfl.h @@ -74,11 +74,43 @@ #define DFH_REVISION GENMASK_ULL(15, 12) /* Feature revision */ #define DFH_NEXT_HDR_OFST GENMASK_ULL(39, 16) /* Offset to next DFH */ #define DFH_EOL BIT_ULL(40) /* End of list */ +#define DFH_VERSION GENMASK_ULL(59, 52) /* DFH version */ #define DFH_TYPE GENMASK_ULL(63, 60) /* Feature type */ #define DFH_TYPE_AFU 1 #define DFH_TYPE_PRIVATE 3 #define DFH_TYPE_FIU 4 +/* + * DFHv1 Register Offset definitons + * In DHFv1, DFH + GUID + CSR_START + CSR_SIZE_GROUP + PARAM_HDR + PARAM_DATA + * as common header registers + */ +#define DFHv1_CSR_ADDR 0x18 /* CSR Register start address */ +#define DFHv1_CSR_SIZE_GRP 0x20 /* Size of Reg Block and Group/tag */ +#define DFHv1_PARAM_HDR 0x28 /* Optional First Param header */ + +/* + * CSR Rel Bit, 1'b0 = relative (offset from feature DFH start), + * 1'b1 = absolute (ARM or other non-PCIe use) + */ +#define DFHv1_CSR_ADDR_REL BIT_ULL(0) + +/* CSR Header Register Bit Definitions */ +#define DFHv1_CSR_ADDR_MASK GENMASK_ULL(63, 1) /* 63:1 of CSR address */ + +/* CSR SIZE Goup Register Bit Definitions */ +#define DFHv1_CSR_SIZE_GRP_INSTANCE_ID GENMASK_ULL(15, 0) /* Enumeration instantiated IP */ +#define DFHv1_CSR_SIZE_GRP_GROUPING_ID GENMASK_ULL(30, 16) /* Group Features/interfaces */ +#define DFHv1_CSR_SIZE_GRP_HAS_PARAMS BIT_ULL(31) /* Presence of Parameters */ +#define DFHv1_CSR_SIZE_GRP_SIZE GENMASK_ULL(63, 32) /* Size of CSR Block in bytes */ + +/* PARAM Header Register Bit Definitions */ +#define DFHv1_PARAM_HDR_ID GENMASK_ULL(15, 0) /* Id of this Param */ +#define DFHv1_PARAM_HDR_VER GENMASK_ULL(31, 16) /* Version Param */ +#define DFHv1_PARAM_HDR_NEXT_OFFSET GENMASK_ULL(63, 35) /* Offset of next Param */ +#define DFHv1_PARAM_HDR_NEXT_EOP BIT_ULL(32) +#define DFHv1_PARAM_DATA 0x08 /* Offset of Param data from Param header */ + /* Next AFU Register Bitfield */ #define NEXT_AFU_NEXT_DFH_OFST GENMASK_ULL(23, 0) /* Offset to next AFU */