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 BD19AC77B73 for ; Mon, 8 May 2023 11:27:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235820AbjEHL1l (ORCPT ); Mon, 8 May 2023 07:27:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235821AbjEHL1T (ORCPT ); Mon, 8 May 2023 07:27:19 -0400 Received: from out-13.mta0.migadu.com (out-13.mta0.migadu.com [91.218.175.13]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3BDFE6D for ; Mon, 8 May 2023 04:27:10 -0700 (PDT) Date: Mon, 8 May 2023 19:27:03 +0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1683545228; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ElYf2a+Vf3tVF0EX4H5zzAhn5sjX7aaNhZ53YyFncJg=; b=ES68el+rj7HOKoaPk83JuJcSrCi+3BH/j+tQBfnaiunnqlbxHYkOfDJW9iXwiqRdiW6uC5 o25WWQaoGb5xT/eH+C2hto9iZZOKibDerDEdjq8GWd7V3Hi0TFMGf0LS3fARrBimQl114V JHx9GTqndCtyb+df4UErYKbjpCAVsE8= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Cai Huoqing To: vkoul@kernel.org Cc: Gustavo Pimentel , Vinod Koul , Jingoo Han , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Rob Herring , Bjorn Helgaas , linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, linux-pci@vger.kernel.org Subject: Re: [PATCH RESEND v9 0/4] dmaengine: dw-edma: Add support for native HDMA Message-ID: References: <20230413033156.93751-1-cai.huoqing@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20230413033156.93751-1-cai.huoqing@linux.dev> X-Migadu-Flow: FLOW_OUT Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On 13 4月 23 11:31:51, Cai Huoqing wrote: > 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 Hi Vinod Just ping this patch. I have rebased this patch series, pls try it. Thanks, -Cai > > 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 >