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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AC5BC6FD1C for ; Fri, 24 Mar 2023 02:15:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230382AbjCXCPM (ORCPT ); Thu, 23 Mar 2023 22:15:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46136 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230357AbjCXCPK (ORCPT ); Thu, 23 Mar 2023 22:15:10 -0400 Received: from out-12.mta0.migadu.com (out-12.mta0.migadu.com [IPv6:2001:41d0:1004:224b::c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04E642A9BE for ; Thu, 23 Mar 2023 19:14:44 -0700 (PDT) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1679624071; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=cnkaeNTG6HWrKe4B22XDrTgrH+xGhdfzP0gfBo97fsM=; b=BsKkqckLblVInK3bx8vmVGrTpUNBI/tzKGZtNsGC4d3FwlwY40O+zdan9yLkqI6gdhpp8E fhFtDCj1YAliUOudrRvyNAjYHFN3Mdw/oHJZ/bOreKpNyWaZvYGurvXIWy4WUJKiVO+zWm q/uMm+uBIiXab/x3JIyE1d3Fu7bfMaA= From: Cai Huoqing To: fancer.lancer@gmail.com Cc: Cai Huoqing , Gustavo Pimentel , Vinod Koul , Jingoo Han , Lorenzo Pieralisi , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Rob Herring , Bjorn Helgaas , linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, linux-pci@vger.kernel.org Subject: [PATCH v9 0/4] dmaengine: dw-edma: Add support for native HDMA Date: Fri, 24 Mar 2023 10:14:14 +0800 Message-Id: <20230324021420.73401-1-cai.huoqing@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org Add support for HDMA NATIVE, as long the IP design has set the compatible register map parameter-HDMA_NATIVE, which allows compatibility for native HDMA register configuration. The HDMA Hyper-DMA IP is an enhancement of the eDMA embedded-DMA IP. And the native HDMA registers are different from eDMA, so this patch add support for HDMA NATIVE mode. HDMA write and read channels operate independently to maximize the performance of the HDMA read and write data transfer over the link When you configure the HDMA with multiple read channels, then it uses a round robin (RR) arbitration scheme to select the next read channel to be serviced.The same applies when youhave multiple write channels. The native HDMA driver also supports a maximum of 16 independent channels (8 write + 8 read), which can run simultaneously. Both SAR (Source Address Register) and DAR (Destination Address Register) are aligned to byte. Cai Huoqing (1): dmaengine: dw-edma: Add support for native HDMA Cai huoqing (3): dmaengine: dw-edma: Rename dw_edma_core_ops structure to dw_edma_plat_ops dmaengine: dw-edma: Create a new dw_edma_core_ops structure to abstract controller operation dmaengine: dw-edma: Add HDMA DebugFS support Tested-by: Serge Semin v8->v9: [3/4] 1.Drop an empty line. [4/4] 2.Update commit log. 3.Remove unused macro v8 link: https://lore.kernel.org/lkml/20230323034944.78357-1-cai.huoqing@linux.dev/ drivers/dma/dw-edma/Makefile | 8 +- drivers/dma/dw-edma/dw-edma-core.c | 86 ++---- drivers/dma/dw-edma/dw-edma-core.h | 58 ++++ drivers/dma/dw-edma/dw-edma-pcie.c | 4 +- drivers/dma/dw-edma/dw-edma-v0-core.c | 85 +++++- drivers/dma/dw-edma/dw-edma-v0-core.h | 14 +- drivers/dma/dw-edma/dw-hdma-v0-core.c | 296 +++++++++++++++++++ drivers/dma/dw-edma/dw-hdma-v0-core.h | 17 ++ drivers/dma/dw-edma/dw-hdma-v0-debugfs.c | 170 +++++++++++ drivers/dma/dw-edma/dw-hdma-v0-debugfs.h | 22 ++ drivers/dma/dw-edma/dw-hdma-v0-regs.h | 129 ++++++++ drivers/pci/controller/dwc/pcie-designware.c | 2 +- include/linux/dma/edma.h | 7 +- 13 files changed, 807 insertions(+), 91 deletions(-) create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-core.c create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-core.h create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-debugfs.c create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-debugfs.h create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-regs.h -- 2.34.1