From patchwork Mon Feb 11 17:03:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gustavo Pimentel X-Patchwork-Id: 10806359 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 ECC9A1575 for ; Mon, 11 Feb 2019 17:04:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DB8D52947C for ; Mon, 11 Feb 2019 17:04:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CF6012A3D8; Mon, 11 Feb 2019 17:04:09 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable 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 52C782947C for ; Mon, 11 Feb 2019 17:04:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728120AbfBKREE (ORCPT ); Mon, 11 Feb 2019 12:04:04 -0500 Received: from smtprelay2.synopsys.com ([198.182.60.111]:59752 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727466AbfBKREE (ORCPT ); Mon, 11 Feb 2019 12:04:04 -0500 Received: from mailhost.synopsys.com (dc2-mailhost2.synopsys.com [10.12.135.162]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtprelay.synopsys.com (Postfix) with ESMTPS id B655410C0850; Mon, 11 Feb 2019 09:04:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1549904643; bh=37hhlYfCmPy56u4jQvh5WXYuQ8bdfdrToOwVrSebK6k=; h=From:To:Cc:Subject:Date:From; b=VYPukPkofKEKRNqkD69xX41p5SKD9/BTaZ3HsfiDUqeE48RXiHpZNMWnR/hsPT3dk OBXDKZu+T031uUqXU2hYSu8tgmdVq2GuxWMOr8tGNfeF0D+ac14rPr/kDLuQFsaNr7 1QTTI2vIrjOL8qYdrVjSW9hvWtFaDEYCg/bu33k9PljbWWWEp4L5R75lKhLXfpXGKO i4oPZ9fYm8qT6qMFfyZGkFEpSnTto4PYkrEmntO1MM8LDrgYH0nhhAlx/EWoBSvxhc m8tpVIUVkrr3kZZlnwSpYdSszXPzGD9SWhwaPq61d3P36fz7Er4vvmp2h+mkAciYC/ mWilaJUr4yyMQ== Received: from de02.synopsys.com (de02.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id E0B7BA00F5; Mon, 11 Feb 2019 17:04:02 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 1C5457D40; Mon, 11 Feb 2019 18:04:02 +0100 (CET) From: Gustavo Pimentel To: linux-pci@vger.kernel.org, dmaengine@vger.kernel.org Cc: Gustavo Pimentel , Vinod Koul , Andy Shevchenko , Russell King , Eugeniy Paltsev , Lorenzo Pieralisi , Bjorn Helgaas , Kishon Vijay Abraham I , Niklas Cassel , Joao Pinto , Jose Abreu , Luis Oliveira , Vitor Soares , Nelson Costa , Pedro Sousa Subject: [RFC v4 0/6] dmaengine: Add Synopsys eDMA IP driver (version 0) Date: Mon, 11 Feb 2019 18:03:51 +0100 Message-Id: X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add Synopsys eDMA IP driver (version 0 and for EP side only) to Linux kernel. This IP is generally distributed with Synopsys PCIe EndPoint IP (depends of the use and licensing agreement), which supports: - legacy and unroll modes - 16 independent and concurrent channels (8 write + 8 read) - supports linked list (scatter-gather) transfer - each linked list descriptor can transfer from 1 byte to 4 Gbytes - supports cyclic transfer - PCIe EndPoint glue-logic This patch series contains: - eDMA core + eDMA core v0 driver (implements the interface with DMAengine controller APIs and interfaces with eDMA HW block) - eDMA PCIe glue-logic reference driver (attaches to Synopsys EP and provides memory access to eDMA core driver) dmaengine: Add Synopsys eDMA IP core driver dmaengine: Add Synopsys eDMA IP version 0 support dmaengine: Add Synopsys eDMA IP version 0 debugfs support PCI: Add Synopsys endpoint EDDA Device ID dmaengine: Add Synopsys eDMA IP PCIe glue-logic MAINTAINERS: Add Synopsys eDMA IP driver maintainer MAINTAINERS | 7 + drivers/dma/Kconfig | 2 + drivers/dma/Makefile | 1 + drivers/dma/dw-edma/Kconfig | 18 + drivers/dma/dw-edma/Makefile | 7 + drivers/dma/dw-edma/dw-edma-core.c | 1069 ++++++++++++++++++++++++++++++ drivers/dma/dw-edma/dw-edma-core.h | 164 +++++ drivers/dma/dw-edma/dw-edma-pcie.c | 227 +++++++ drivers/dma/dw-edma/dw-edma-v0-core.c | 346 ++++++++++ drivers/dma/dw-edma/dw-edma-v0-core.h | 26 + drivers/dma/dw-edma/dw-edma-v0-debugfs.c | 359 ++++++++++ drivers/dma/dw-edma/dw-edma-v0-debugfs.h | 26 + drivers/dma/dw-edma/dw-edma-v0-regs.h | 156 +++++ drivers/misc/pci_endpoint_test.c | 2 +- include/linux/dma/edma.h | 43 ++ include/linux/pci_ids.h | 1 + 16 files changed, 2453 insertions(+), 1 deletion(-) create mode 100644 drivers/dma/dw-edma/Kconfig create mode 100644 drivers/dma/dw-edma/Makefile create mode 100644 drivers/dma/dw-edma/dw-edma-core.c create mode 100644 drivers/dma/dw-edma/dw-edma-core.h create mode 100644 drivers/dma/dw-edma/dw-edma-pcie.c create mode 100644 drivers/dma/dw-edma/dw-edma-v0-core.c create mode 100644 drivers/dma/dw-edma/dw-edma-v0-core.h create mode 100644 drivers/dma/dw-edma/dw-edma-v0-debugfs.c create mode 100644 drivers/dma/dw-edma/dw-edma-v0-debugfs.h create mode 100644 drivers/dma/dw-edma/dw-edma-v0-regs.h create mode 100644 include/linux/dma/edma.h Signed-off-by: Gustavo Pimentel Cc: Vinod Koul Cc: Andy Shevchenko Cc: Russell King Cc: Eugeniy Paltsev Cc: Lorenzo Pieralisi Cc: Bjorn Helgaas Cc: Kishon Vijay Abraham I Cc: Niklas Cassel Cc: Joao Pinto Cc: Jose Abreu Cc: Luis Oliveira Cc: Vitor Soares Cc: Nelson Costa Cc: Pedro Sousa