From patchwork Tue Apr 23 18:30:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gustavo Pimentel X-Patchwork-Id: 10913639 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 029A4186D for ; Tue, 23 Apr 2019 18:30:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EB04E28849 for ; Tue, 23 Apr 2019 18:30:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DF2DA2883D; Tue, 23 Apr 2019 18:30:27 +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 1FA7228843 for ; Tue, 23 Apr 2019 18:30:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726157AbfDWSa0 (ORCPT ); Tue, 23 Apr 2019 14:30:26 -0400 Received: from dc2-smtprelay2.synopsys.com ([198.182.61.142]:60386 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726074AbfDWSaZ (ORCPT ); Tue, 23 Apr 2019 14:30:25 -0400 Received: from mailhost.synopsys.com (dc2-mailhost2.synopsys.com [10.12.135.162]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 4C26EC0B10; Tue, 23 Apr 2019 18:30:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1556044224; bh=P3PDKBh5Tmuow7pKb5XuRnQlmy8Ut8iWYQgNqBVrhY0=; h=From:To:Cc:Subject:Date:From; b=kkLfeHze7wwyR2EguYqOz0UPS/GXpOqwQTW0lBDlZErcSQnJsFtOoB7UeSaUIJW51 rKDiUC+dCMgOJmRUPXujjVzPgozqBuyeUtBejKW37C6uZNIt7Il5jIuCBXLg2Go4Hr 09N1qhhU7IBLJXhTBOoF5eLkhcd4yhI72l9BIzjbBQlY8Mq2jxCyJpl/BBruoJBVSE XoKSRe9rhptvby6eHhJozbJR353WACLTbZ8npf8rMR791fi5Jz+2Pic+NsxbcSewj2 UypJGZjH2b18e3ppd11uYBhDnfmfxme7uoKkMqzWtf1bLeRB9vhyavklP5QeTHlek8 Up0JkMrB1T8Gw== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 4F8AFA009A; Tue, 23 Apr 2019 18:30:24 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 7E1BC3F820; Tue, 23 Apr 2019 20:30:23 +0200 (CEST) From: Gustavo Pimentel To: linux-pci@vger.kernel.org, dmaengine@vger.kernel.org Cc: Gustavo Pimentel , Vinod Koul , Andy Shevchenko , Russell King , Lorenzo Pieralisi , Bjorn Helgaas , Kishon Vijay Abraham I , Joao Pinto Subject: [RFC v6 0/6] dmaengine: Add Synopsys eDMA IP driver (version 0) Date: Tue, 23 Apr 2019 20:30:07 +0200 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) Gustavo Pimentel (6): 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 | 920 +++++++++++++++++++++++++++++++ drivers/dma/dw-edma/dw-edma-core.h | 165 ++++++ drivers/dma/dw-edma/dw-edma-pcie.c | 229 ++++++++ drivers/dma/dw-edma/dw-edma-v0-core.c | 348 ++++++++++++ drivers/dma/dw-edma/dw-edma-v0-core.h | 28 + drivers/dma/dw-edma/dw-edma-v0-debugfs.c | 361 ++++++++++++ drivers/dma/dw-edma/dw-edma-v0-debugfs.h | 28 + drivers/dma/dw-edma/dw-edma-v0-regs.h | 158 ++++++ drivers/misc/pci_endpoint_test.c | 2 +- include/linux/dma/edma.h | 47 ++ include/linux/pci_ids.h | 1 + 16 files changed, 2321 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: Lorenzo Pieralisi Cc: Bjorn Helgaas Cc: Kishon Vijay Abraham I Cc: Joao Pinto