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=-3.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no 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 E1268C4724C for ; Fri, 1 May 2020 07:39:58 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A71C1214D8 for ; Fri, 1 May 2020 07:39:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="uSMKBOO6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A71C1214D8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 380708E0009; Fri, 1 May 2020 03:39:58 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 331958E0001; Fri, 1 May 2020 03:39:58 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2462C8E0009; Fri, 1 May 2020 03:39:58 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0144.hostedemail.com [216.40.44.144]) by kanga.kvack.org (Postfix) with ESMTP id 0CB4C8E0001 for ; Fri, 1 May 2020 03:39:58 -0400 (EDT) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id B9030181AC9C6 for ; Fri, 1 May 2020 07:39:57 +0000 (UTC) X-FDA: 76767351234.26.blade80_7409e5f83b537 X-HE-Tag: blade80_7409e5f83b537 X-Filterd-Recvd-Size: 5253 Received: from mail-pg1-f195.google.com (mail-pg1-f195.google.com [209.85.215.195]) by imf31.hostedemail.com (Postfix) with ESMTP for ; Fri, 1 May 2020 07:39:57 +0000 (UTC) Received: by mail-pg1-f195.google.com with SMTP id d17so4256447pgo.0 for ; Fri, 01 May 2020 00:39:57 -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=7dbuQPhIsTcQHi6Sc8OBXbUFsIKd1Ghgu7yJHTjcrBA=; b=uSMKBOO6QIs4uLVfahwgnBUw2gO5QWpFhQb6F1MFxTptPMF+Z0o/WwC6bov2PX1B+z GpMi0QLlCm5bjeCQb1Ib4KAhIABJItLI42QmCZQZGMtFoAd5BloKynNn9kQq3/e29zu2 9IyjzXDmbfN8mJesTXXH8vGo6U5pKfc97OK3wq90VHEBym+PgXw/vn++YmU/npiUaTr5 EKndS27RG5ykIcMNfuIjRBSN+x85vpHDVdCcNP20vltiVGnPnJOhrLIPCacJWk+nw8H5 h/1ZfEiY9PDJtMZv9WMs5aKqGIRak+Cy8hyL1nVn2z4TqrdRTnPu7SgigutOZnbMfMx7 2gGg== 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=7dbuQPhIsTcQHi6Sc8OBXbUFsIKd1Ghgu7yJHTjcrBA=; b=dfN8md94VmbUsan7qLSooyFSiBZGS4r4UOnkrKvQmJEGLxEPGl/trpoES56YwJxYON wqi77ta5Y70aesX+qf8iYbVUIExjXAWjFCTl71IC53uQ2coK8uNGC5S8tpNyWCxqJ88K 7UenpxlnC/RSXUlp/ieoO8GJlzJY5vZYq+mdFjflXk0RStIYPXxsx2rgYd0D3EIrivjz ui9twf5g3nmJ2DVJN9W2L+tfrJqOSrp+o3gDn3oHv+j4lfzIecCev7ah4sIflTcIkHsf 2IhTzLh+LVaEujJ2wHHjBNKVaFYgBTFBGwTzpx8/bt5+ML8jK59WLh++1joMy308dT5q f+7g== X-Gm-Message-State: AGi0PuZma3uE/H9E3b/b+7LP247+yDR48XoNfZQpbAtCS9OmmzSlLiiz xINg426d2Q0Sn9Lg0vf2WN8BmQ== X-Google-Smtp-Source: APiQypJ4tRvRarVqfbdjkqTxsXvJvyOp8AuLCGCLRECI0h2PDJqsBBZbjfCR605Pbtspben2FOegvQ== X-Received: by 2002:a62:7bcf:: with SMTP id w198mr2002566pfc.226.1588318796201; Fri, 01 May 2020 00:39:56 -0700 (PDT) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id w12sm1557841pfq.133.2020.05.01.00.39.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 May 2020 00:39:55 -0700 (PDT) From: John Stultz To: lkml Cc: John Stultz , Rob Herring , Sumit Semwal , "Andrew F. Davis" , Benjamin Gaignard , Liam Mark , Pratik Patel , Laura Abbott , Brian Starkey , Chenbo Feng , Alistair Strachan , Sandeep Patil , Hridya Valsaraju , Christoph Hellwig , Marek Szyprowski , Robin Murphy , Andrew Morton , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mm@kvack.org Subject: [RFC][PATCH 0/4] Support non-default CMA regions to the dmabuf heaps interface Date: Fri, 1 May 2020 07:39:45 +0000 Message-Id: <20200501073949.120396-1-john.stultz@linaro.org> X-Mailer: git-send-email 2.17.1 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This is a much belated second stab at allowing non-default CMA regions to be exposed via the dmabuf heaps interface. Previous attempt was here: https://lore.kernel.org/lkml/20191025225009.50305-2-john.stultz@linaro.org/T/ This pass tried to take Rob's earlier suggestion to use a flag property. Feedback would be greatly welcome! thanks -john Cc: Rob Herring Cc: Sumit Semwal Cc: "Andrew F. Davis" Cc: Benjamin Gaignard Cc: Liam Mark Cc: Pratik Patel Cc: Laura Abbott Cc: Brian Starkey Cc: Chenbo Feng Cc: Alistair Strachan Cc: Sandeep Patil Cc: Hridya Valsaraju Cc: Christoph Hellwig Cc: Marek Szyprowski Cc: Robin Murphy Cc: Andrew Morton Cc: devicetree@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-mm@kvack.org John Stultz (4): devicetree: bindings: Add linux,cma-heap tag for reserved memory mm: cma: Add dma_heap flag to cma structure dma-buf: cma_heap: Extend logic to export CMA regions tagged with "linux,cma-heap" example: dts: hi3660-hikey960: Add dts entries to test cma heap binding .../reserved-memory/reserved-memory.txt | 3 +++ .../boot/dts/hisilicon/hi3660-hikey960.dts | 7 +++++++ drivers/dma-buf/heaps/cma_heap.c | 18 +++++++++--------- include/linux/cma.h | 3 +++ kernel/dma/contiguous.c | 3 +++ mm/cma.c | 11 +++++++++++ mm/cma.h | 1 + 7 files changed, 37 insertions(+), 9 deletions(-) -- 2.17.1