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[209.85.220.65]) by mx.google.com with SMTPS id t16sor3128376pfh.22.2020.05.01.00.39.56 for (Google Transport Security); Fri, 01 May 2020 00:39:56 -0700 (PDT) Received-SPF: pass (google.com: domain of john.stultz@linaro.org designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=uSMKBOO6; spf=pass (google.com: domain of john.stultz@linaro.org designates 209.85.220.65 as permitted sender) smtp.mailfrom=john.stultz@linaro.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org 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=gCELUtos8F+nlIRUjeIH7cG20xB7TNBb9MR0m9UtP7jBFMaL4mXqwpjH/NZ1iC32uS f6/zeltQyXnpTG94ogNhMrAjuIpteXf+HJcHubFws6BXPuS9l76vf1nF18DWgxpFkopW Qn7cv/5upVDyFvidDxg543KeWMS5Mwfn4R6iT5jgZNgarZ2iDobYs6iPLZuL5dmcp8HW FSGv9RgYEnOvQNduWheDJYA49n5Z/m4uip7VhNS57k7b9UC8xyZYXo2cRbix597Ujp9J Z+vibPsy89u8Ec5/KztyOnCgMrFNsU7WIP33s73gaAWgmZibM/2q+i6PvudiBm08AvNC MTZw== X-Gm-Message-State: AGi0PuaMjy1ru9qpAjV7FsA5ijaB4TzjFHM3EB9e9+wQvRSSGFMFH+VC eau5bx3V3eaat8A+P+07dwRyyAD9 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) Return-Path: 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 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