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 X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7DF9CA9ED0 for ; Fri, 18 Oct 2019 05:23:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AC4AA222BD for ; Fri, 18 Oct 2019 05:23:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="gamFheCD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2438069AbfJRFX3 (ORCPT ); Fri, 18 Oct 2019 01:23:29 -0400 Received: from mail-pg1-f193.google.com ([209.85.215.193]:39661 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2407641AbfJRFX3 (ORCPT ); Fri, 18 Oct 2019 01:23:29 -0400 Received: by mail-pg1-f193.google.com with SMTP id p12so2689173pgn.6 for ; Thu, 17 Oct 2019 22:23:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=DXKps7/0UTC6N/waL44YFVSLkuti5RrXPqcBWv8KQbQ=; b=gamFheCDtldh8w0DIQwjkJQvPpQ8fVyjLzcl2Bnce55vZageN2p4ZFmfA77Hrfg3vi IIuX81DfKF1sY9uChHRvpH+LqRDY4esOj4H4NmjK1xqGdgAvDKplrYujdUncFZabA2W7 CV1YHJWuWyoVtELxZ+dxIj4b75l46weQlcnVMPvJNBT1EqPmylnAAz7N4pHj5+/DR+eV US8Ysm9QoAyka+OTUptCBv9qihjrUN/x/S2a+Rv0ri00g9uAUwkhQF4mXumMLqQysELt sHbZk+4eFpXIimqCgWN0A5mLvPcTbg6LSUuyWtJHJwvTQ2CHEklWcly6eFL1SaJ9Vqsw MCcg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=DXKps7/0UTC6N/waL44YFVSLkuti5RrXPqcBWv8KQbQ=; b=L5qKJzWsJqXkprxxieh+2sgU9gpxaRFx86RGjvSnlYXSXuaqbEawT+DQAPyrD8gYdK 6VFOfUC+zuGb+3U1Bnfvb9gUmvqfde54mz6oFqHeUUmUKOyRNfvFkW+P80BbWLyVIEz/ fTR2HuasoUGIy5mJWfhnR8QhLAqOIdTmVZr8kRZrdoLA2yRFqIDFZ0vJ7oChHdnwXdtg iX4NjZ3XRCwdC5awovYlQ8FEePhS6yBh6yAraW/I9QXxwCvXEqw5G1ecy9PYZA6/i9MZ jENUbJ7ZSYaOOvTA2Yo6wGFd2JpgabUJts/tHuXarhLY8QABYGC+/nwdcNjSOZg7vSp/ bXHg== X-Gm-Message-State: APjAAAWwPjHZIfEXnnzUHXvJog+k6tSFYIytpbGwgbBR3iQfy8ux2ry3 O1ghhKkofXKrRl0ARmnW0K4iH51fmr0= X-Google-Smtp-Source: APXvYqyqi7P3EgkAazgQczeDmVqJ1d/iYzFd3A4qEMOl6Sl00Jl2WrFk363AGlQfVaxWSAIHUHH7pA== X-Received: by 2002:a65:564b:: with SMTP id m11mr3970970pgs.133.1571376207362; Thu, 17 Oct 2019 22:23:27 -0700 (PDT) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id g202sm4729336pfb.155.2019.10.17.22.23.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Oct 2019 22:23:26 -0700 (PDT) From: John Stultz To: lkml Cc: John Stultz , Laura Abbott , Benjamin Gaignard , Sumit Semwal , Liam Mark , Pratik Patel , Brian Starkey , Vincent Donnefort , Sudipto Paul , "Andrew F . Davis" , Christoph Hellwig , Chenbo Feng , Alistair Strachan , Hridya Valsaraju , Hillf Danton , dri-devel@lists.freedesktop.org Subject: [PATCH v12 0/5] DMA-BUF Heaps (destaging ION) Date: Fri, 18 Oct 2019 05:23:18 +0000 Message-Id: <20191018052323.21659-1-john.stultz@linaro.org> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andrew brought up a reasonable concern with the CMA heap enumeration in the previous patch set, and I had a few other minor cleanups to add, so here is yet another pass at the dma-buf heaps patchset Andrew and I have been working on which tries to destage a fair chunk of ION functionality. The patchset implements per-heap devices which can be opened directly and then an ioctl is used to allocate a dmabuf from the heap. The interface is similar, but much simpler then IONs, only providing an ALLOC ioctl. Also, I've provided relatively simple system and cma heaps. I've booted and tested these patches with AOSP on the HiKey960 using the kernel tree here: https://git.linaro.org/people/john.stultz/android-dev.git/log/?h=dev/dma-buf-heap And the userspace changes here: https://android-review.googlesource.com/c/device/linaro/hikey/+/909436 Compared to ION, this patchset is missing the system-contig, carveout and chunk heaps, as I don't have a device that uses those, so I'm unable to do much useful validation there. Additionally we have no upstream users of chunk or carveout, and the system-contig has been deprecated in the common/andoid-* kernels, so this should be ok. I've also removed the stats accounting, since any such accounting should be implemented by dma-buf core or the heaps themselves. New in v12: * To address Andrew's concern about adding all CMA areas, the CMA heap only adds the default CMA region for now. * Minor cleanups and prep for loading heaps from modules * I have patches to add other specified CMA regions, as well as loading heaps from modules in my WIP tree, which I will submit once this set is queued, here: https://git.linaro.org/people/john.stultz/android-dev.git/log/?h=dev/dma-buf-heap-WIP thanks -john Cc: Laura Abbott Cc: Benjamin Gaignard Cc: Sumit Semwal Cc: Liam Mark Cc: Pratik Patel Cc: Brian Starkey Cc: Vincent Donnefort Cc: Sudipto Paul Cc: Andrew F. Davis Cc: Christoph Hellwig Cc: Chenbo Feng Cc: Alistair Strachan Cc: Hridya Valsaraju Cc: Hillf Danton Cc: dri-devel@lists.freedesktop.org Andrew F. Davis (1): dma-buf: Add dma-buf heaps framework John Stultz (4): dma-buf: heaps: Add heap helpers dma-buf: heaps: Add system heap to dmabuf heaps dma-buf: heaps: Add CMA heap to dmabuf heaps kselftests: Add dma-heap test MAINTAINERS | 18 ++ drivers/dma-buf/Kconfig | 11 + drivers/dma-buf/Makefile | 2 + drivers/dma-buf/dma-heap.c | 271 ++++++++++++++++++ drivers/dma-buf/heaps/Kconfig | 14 + drivers/dma-buf/heaps/Makefile | 4 + drivers/dma-buf/heaps/cma_heap.c | 178 ++++++++++++ drivers/dma-buf/heaps/heap-helpers.c | 270 +++++++++++++++++ drivers/dma-buf/heaps/heap-helpers.h | 55 ++++ drivers/dma-buf/heaps/system_heap.c | 124 ++++++++ include/linux/dma-heap.h | 59 ++++ include/uapi/linux/dma-heap.h | 55 ++++ tools/testing/selftests/dmabuf-heaps/Makefile | 9 + .../selftests/dmabuf-heaps/dmabuf-heap.c | 238 +++++++++++++++ 14 files changed, 1308 insertions(+) create mode 100644 drivers/dma-buf/dma-heap.c create mode 100644 drivers/dma-buf/heaps/Kconfig create mode 100644 drivers/dma-buf/heaps/Makefile create mode 100644 drivers/dma-buf/heaps/cma_heap.c create mode 100644 drivers/dma-buf/heaps/heap-helpers.c create mode 100644 drivers/dma-buf/heaps/heap-helpers.h create mode 100644 drivers/dma-buf/heaps/system_heap.c create mode 100644 include/linux/dma-heap.h create mode 100644 include/uapi/linux/dma-heap.h create mode 100644 tools/testing/selftests/dmabuf-heaps/Makefile create mode 100644 tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c -- 2.17.1