From patchwork Fri Mar 8 17:00:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Cercueil X-Patchwork-Id: 13587080 Received: from aposti.net (aposti.net [89.234.176.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9B3E615D0; Fri, 8 Mar 2024 17:01:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=89.234.176.197 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709917276; cv=none; b=b+9K0LZWxST9I8HxMEQD3NUkyww1Gp/2c8VzArpgRkkPTW6nB1WKwORYlBCgcL99f2jSwmCm4US/zIRBLN4Vl4vGiMXp3ieI2xOvUK6a/kAYeKR6O+Zt61yzJkm6gW/ecUJ5gA3WSCTA7DxIL2p9igURxNyVAMVAPZfCOGGbs6E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709917276; c=relaxed/simple; bh=5s4uVZYzL5xnUpS0cs0ZcugLLMwfYan+D4jDkzO05oI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=F5yeBgfJBUpt2plQ6RABpe+qB0nYeW6sYW3gh+vcsrZAb/1TEz+n6rA4PEoz4R++trqZpT7ps0pC48ZEukXYfiVs+Vd/gP7ZcI479ZusZIjUIch4ojcPvfeC6fbN4H1LYC1c9KTxTuMvcy4mswmOXFpJXyZsBO6rnJajtTK2Jec= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=crapouillou.net; spf=pass smtp.mailfrom=crapouillou.net; dkim=pass (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b=mmd0bdG2; arc=none smtp.client-ip=89.234.176.197 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=crapouillou.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=crapouillou.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="mmd0bdG2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1709917266; 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=SFBKjiymmjn1Cc3fHZlhJhqjEETz/4Y5VvGtGcGIiE0=; b=mmd0bdG2Y0uIyMvOaFFYjT8Bw1Stk2P0bT4cT5sR/e4CzY9Zm9IbFsvaT9Hfsr9jTrdlkv hBs20kbmTnPHjoFINI/0dooDsZ/lEFTN/ma1tt030mEWOn3CDLI1ldB2WDsxQlMUagr13Y jenhVg/B0/sIAM4we3ixpKlj8VvNc7Q= From: Paul Cercueil To: Jonathan Cameron , =?utf-8?q?Christian_K=C3=B6nig?= , Jonathan Corbet , Lars-Peter Clausen , Vinod Koul , Sumit Semwal Cc: Nuno Sa , Michael Hennerich , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, linux-iio@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, Paul Cercueil Subject: [PATCH v8 0/6] iio: new DMABUF based API Date: Fri, 8 Mar 2024 18:00:40 +0100 Message-ID: <20240308170046.92899-1-paul@crapouillou.net> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hi Jonathan, Here's the final(tm) version of the IIO DMABUF patchset. This v8 fixes the remaining few issues that Christian reported. I also updated the documentation patch as there has been changes to index.rst. This was based on next-20240308. Changelog: - [3/6]: - Fix swapped fence direction - Simplify fence wait mechanism - Remove "Buffer closed with active transfers" print, as it was dead code - Un-export iio_buffer_dmabuf_{get,put}. They are not used anywhere else so they can even be static. - Prevent attaching already-attached DMABUFs - [6/6]: Renamed dmabuf_api.rst -> iio_dmabuf_api.rst, and updated index.rst whose format changed in iio/togreg. Cheers, -Paul Paul Cercueil (6): dmaengine: Add API function dmaengine_prep_peripheral_dma_vec() dmaengine: dma-axi-dmac: Implement device_prep_peripheral_dma_vec iio: core: Add new DMABUF interface infrastructure iio: buffer-dma: Enable support for DMABUFs iio: buffer-dmaengine: Support new DMABUF based userspace API Documentation: iio: Document high-speed DMABUF based API Documentation/iio/iio_dmabuf_api.rst | 54 ++ Documentation/iio/index.rst | 1 + drivers/dma/dma-axi-dmac.c | 40 ++ drivers/iio/buffer/industrialio-buffer-dma.c | 181 ++++++- .../buffer/industrialio-buffer-dmaengine.c | 59 ++- drivers/iio/industrialio-buffer.c | 462 ++++++++++++++++++ include/linux/dmaengine.h | 27 + include/linux/iio/buffer-dma.h | 31 ++ include/linux/iio/buffer_impl.h | 30 ++ include/uapi/linux/iio/buffer.h | 22 + 10 files changed, 890 insertions(+), 17 deletions(-) create mode 100644 Documentation/iio/iio_dmabuf_api.rst