From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED738C352BE for ; Thu, 16 Apr 2020 20:05:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D40B121744 for ; Thu, 16 Apr 2020 20:05:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731523AbgDPUFc (ORCPT ); Thu, 16 Apr 2020 16:05:32 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:40412 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730759AbgDPUD7 (ORCPT ); Thu, 16 Apr 2020 16:03:59 -0400 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03GK3pOB038859; Thu, 16 Apr 2020 16:03:52 -0400 Received: from ppma02dal.us.ibm.com (a.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.10]) by mx0a-001b2d01.pphosted.com with ESMTP id 30ewfqrx49-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Apr 2020 16:03:51 -0400 Received: from pps.filterd (ppma02dal.us.ibm.com [127.0.0.1]) by ppma02dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id 03GK3JUI026246; Thu, 16 Apr 2020 20:03:43 GMT Received: from b01cxnp22036.gho.pok.ibm.com (b01cxnp22036.gho.pok.ibm.com [9.57.198.26]) by ppma02dal.us.ibm.com with ESMTP id 30b5h7g0wy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Apr 2020 20:03:43 +0000 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp22036.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 03GK3gFk41812346 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 16 Apr 2020 20:03:42 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6F1ABAC05B; Thu, 16 Apr 2020 20:03:42 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C9BD2AC059; Thu, 16 Apr 2020 20:03:40 +0000 (GMT) Received: from talon7.ibm.com (unknown [9.163.81.122]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 16 Apr 2020 20:03:40 +0000 (GMT) From: Eddie James To: linux-aspeed@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, robh+dt@kernel.org, joel@jms.id.au, andrew@aj.id.au, eajames@linux.ibm.com Subject: [PATCH v9 0/5] soc: aspeed: Add XDMA engine driver Date: Thu, 16 Apr 2020 15:03:34 -0500 Message-Id: <1587067419-5107-1-git-send-email-eajames@linux.ibm.com> X-Mailer: git-send-email 1.8.3.1 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.676 definitions=2020-04-16_08:2020-04-14,2020-04-16 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 mlxscore=0 suspectscore=3 phishscore=0 clxscore=1015 adultscore=0 mlxlogscore=925 priorityscore=1501 spamscore=0 malwarescore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004160137 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series adds a driver to control the Aspeed XDMA engine embedded in the AST2500 and AST2600. The XDMA engine performs automatic DMA operations over PCI-E between the Aspeed SOC (acting as a BMC) and a host processor. Changes since v8: - Use DMA API to allocate memory from reserved region. - Fix the driver for the AST2500 by keeping the command queue in kernel memory and copying the whole buffer to the reserved memory area before starting the operation. - Add krefs to the client structure to prevent use-after-free. - Switch reset-names binding to "device", "root-complex" Eddie James (5): dt-bindings: soc: Add Aspeed XDMA Engine soc: aspeed: Add XDMA Engine Driver soc: aspeed: xdma: Add user interface soc: aspeed: xdma: Add reset ioctl ARM: dts: Aspeed: AST2600: Add XDMA PCI-E root control reset .../devicetree/bindings/soc/aspeed/xdma.txt | 45 + MAINTAINERS | 8 + arch/arm/boot/dts/aspeed-g6.dtsi | 3 +- drivers/soc/aspeed/Kconfig | 8 + drivers/soc/aspeed/Makefile | 1 + drivers/soc/aspeed/aspeed-xdma.c | 1099 ++++++++++++++++++++ include/uapi/linux/aspeed-xdma.h | 42 + 7 files changed, 1205 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/soc/aspeed/xdma.txt create mode 100644 drivers/soc/aspeed/aspeed-xdma.c create mode 100644 include/uapi/linux/aspeed-xdma.h -- 1.8.3.1