From patchwork Thu Jun 20 12:27:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Cercueil X-Patchwork-Id: 13705320 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 85F001AC43A; Thu, 20 Jun 2024 12:27:49 +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=1718886471; cv=none; b=p6nMIZTdhPMu4KSgKd8wvaX+oJgNrMQ1pFvyPZsXjetlCOrOmKYhzBMm8Eogeyr4JXyc62PkmvjMpkWwfhVg3ejMTC+OKvy+6j2SSdz2tm+08sAKIv6GB8EDX+kUqYVI2geYL6Im+apqGLd43RRKImwl3Zl0NxSQvXfGb0EBvKc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718886471; c=relaxed/simple; bh=IVri826X6pjvmhvTPcELbF/pb2ND/lJ9NsEDK/hpclw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=o+wVlu5dE6CeY3YxgXaXXFrEHW9vov5Knb5FrLFsP9j+tDrSKelDc4Y/aGoPhFwxh/FS04YbiG6vt+DhZGGnxx0dd3Vb3dciYkDul2whgg6MJmpINE+iTBiy+yLHUmIw1DN5EaDMCEsB8q/nqAtYt+5y0tqTU01Knl4trKU13c8= 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=lqyoE7Lh; 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="lqyoE7Lh" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1718886461; 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=Phdke2IFP5DcYdJ0p7PW2PSRcousUzjTQIkIha9HQSc=; b=lqyoE7LhGfv+iomk4eTa9NEiOz1RYXGYKWnWtmg0TLRMwz3ZwT5U4Q1tiD3BbLWC7jd1gd wvR7Cn975V5ErvS3+B/VzBl9ndkSmmj8f4FUb3xv3z9aE/TKsnvtI/iW13i70tQlXiJFk3 stFWt0d2tKtU1RCBJSvdUg2aBvZBX2s= From: Paul Cercueil To: Jonathan Cameron , Lars-Peter Clausen , Vinod Koul , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= Cc: Jonathan Corbet , Nuno Sa , linux-iio@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, Paul Cercueil Subject: [PATCH v12 0/7] iio: new DMABUF based API v12 Date: Thu, 20 Jun 2024 14:27:19 +0200 Message-ID: <20240620122726.41232-1-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 v12 of my patchset that introduces DMABUF support to IIO. Apart from a small documentation fix, it reverts to using mutex_lock/mutex_unlock in one particular place, which used cleanup GOTOs (which don't play well with scope-managed cleanups). Changelog: - [3/7]: - Revert to mutex_lock/mutex_unlock in iio_buffer_attach_dmabuf(), as it uses cleanup GOTOs - [6/7]: - "obtained using..." -> "which can be obtained using..." This is based on next-20240619. Cheers, -Paul Paul Cercueil (7): 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: dmaengine: Document new dma_vec API Documentation/driver-api/dmaengine/client.rst | 9 + .../driver-api/dmaengine/provider.rst | 10 + Documentation/iio/iio_dmabuf_api.rst | 54 +++ Documentation/iio/index.rst | 1 + drivers/dma/dma-axi-dmac.c | 40 ++ drivers/iio/Kconfig | 1 + drivers/iio/buffer/industrialio-buffer-dma.c | 178 ++++++- .../buffer/industrialio-buffer-dmaengine.c | 62 ++- drivers/iio/industrialio-buffer.c | 459 ++++++++++++++++++ include/linux/dmaengine.h | 33 ++ include/linux/iio/buffer-dma.h | 31 ++ include/linux/iio/buffer_impl.h | 33 ++ include/uapi/linux/iio/buffer.h | 22 + 13 files changed, 913 insertions(+), 20 deletions(-) create mode 100644 Documentation/iio/iio_dmabuf_api.rst