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 mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 083DACC6B0E for ; Tue, 13 Oct 2026 06:51:33 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 30E9C40272; Tue, 13 Oct 2026 08:51:33 +0200 (CEST) Received: from inva020.nxp.com (inva020.nxp.com [92.121.34.13]) by mails.dpdk.org (Postfix) with ESMTP id B159C400D6 for ; Tue, 13 Oct 2026 08:51:31 +0200 (CEST) Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 7E60E1A004D; Tue, 13 Oct 2026 08:51:31 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 48E541A007B; Tue, 13 Oct 2026 08:51:31 +0200 (CEST) Received: from lsv03457.swis.in-blr01.nxp.com (lsv03457.swis.in-blr01.nxp.com [92.120.147.250]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 75BA11800068; Tue, 13 Oct 2026 14:51:30 +0800 (+08) From: Gagandeep Singh To: dev@dpdk.org, fengchengwen@huawei.com Cc: hemant.agrawal@nxp.com Subject: [PATCH v5 0/5] dma/imx_edma5: introduce NXP i.MX95 eDMA5 driver Date: Tue, 13 Oct 2026 12:21:22 +0530 Message-Id: <20261013065127.102157-1-g.singh@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260812092929.563973-1-g.singh@nxp.com> References: <20260812092929.563973-1-g.singh@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=y Content-Transfer-Encoding: 8bit X-Virus-Scanned: ClamAV using ClamSMTP X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org V5-changes: - Added DP logs. - removed unwanted checks. - fixed comments, coding style. V4-changes: - Removed the redundant local buffer "want" - Updated the comment for RTE_PMD_REGISTER_ALIAS - Removed stray extra blank line. V3-changes: - Fixed below AI comments: - Dead quote-stripping removed (`of_device_is_compatible`) - Redundant `goto out` removed - New Features entry added for bus platform changes. - Scatter-gather doc corrected in both sections - Unused CH_MATTR macros removed - Fixed SG sub-transfer length cap (`imx_edma5_copy_sg`) - Updated Per-job timeout logic. - Updated `rte_mem_iova2virt` per-op in IOVA=VA mode logic - Updated comments and documentation as per the AI comments. V2-changes: - Added dependent patch: bus/platform: match device by devicetree compatible string - Fixed multiple AI reported issues includes: - removed the alias from the driver, no need of it - removed imx_edma5_write32 from data-path, reported as coherency concern. - fix submit for previously enqueued jobs. - Added dsb in data path - Added a commnet for rte_mem_iova2virt() NULL behaviour. - Fixed: TCD NBYTES bits 31:30 are SMLOE/DMLOE — full 32-bit length corrupts them - Data path is fully synchronous: Acknowledged but intentionally deferred — the synchronous design is a deliberate simplification for the initial upstream submission. Noted in docs. - In-memory TCD64 pool is more complex than needed: Noted/deferred — the pool structure was retained for forward compatibility with hardware SG chaining. - Extended `imx_edma5_dump()` to read and print `CH_CSR` and `CH_ES` registers for every configured vchan. - Double and stary lines removed. V1: This patch series adds a new dmadev Poll-Mode Driver (PMD) for the NXP i.MX95 eDMA5 (Enhanced DMA Type 5) controller. Key features supported by this driver: - Memory-to-memory copy (RTE_DMA_OP_TYPE_MEMCPY) - Scatter-gather memory copy (RTE_DMA_OP_TYPE_SG) - 64-bit TCD (Transfer Control Descriptor) format - Non-coherent DMA with explicit cache clean/invalidate - Per-channel statistics and register dump for debug Gagandeep Singh (5): bus/platform: match device by devicetree compatible string dma/imx_edma5: introduce eDMA5 dmadev skeleton dma/imx_edma5: add device configuration dma/imx_edma5: add data path dma/imx_edma5: add statistics and dump MAINTAINERS | 5 + doc/guides/dmadevs/imx_edma5.rst | 69 ++ doc/guides/dmadevs/index.rst | 1 + doc/guides/rel_notes/release_26_11.rst | 15 + drivers/bus/platform/bus_platform_driver.h | 11 +- drivers/bus/platform/platform.c | 49 +- drivers/dma/imx_edma5/imx_edma5_dmadev.c | 1156 ++++++++++++++++++++ drivers/dma/imx_edma5/imx_edma5_dmadev.h | 235 ++++ drivers/dma/imx_edma5/imx_edma5_hw.h | 143 +++ drivers/dma/imx_edma5/imx_edma5_logs.h | 22 + drivers/dma/imx_edma5/meson.build | 10 + drivers/dma/meson.build | 1 + 12 files changed, 1714 insertions(+), 3 deletions(-) create mode 100644 doc/guides/dmadevs/imx_edma5.rst create mode 100644 drivers/dma/imx_edma5/imx_edma5_dmadev.c create mode 100644 drivers/dma/imx_edma5/imx_edma5_dmadev.h create mode 100644 drivers/dma/imx_edma5/imx_edma5_hw.h create mode 100644 drivers/dma/imx_edma5/imx_edma5_logs.h create mode 100644 drivers/dma/imx_edma5/meson.build -- 2.25.1