From patchwork Sat Nov 21 04:49:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 11923163 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=-11.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, 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 ED8FCC388F9 for ; Sat, 21 Nov 2020 04:50:02 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8464421D40 for ; Sat, 21 Nov 2020 04:50:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="dWZndGYY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8464421D40 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9D1C86E964; Sat, 21 Nov 2020 04:50:01 +0000 (UTC) Received: from mail-pg1-x542.google.com (mail-pg1-x542.google.com [IPv6:2607:f8b0:4864:20::542]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7C43B6E964 for ; Sat, 21 Nov 2020 04:50:00 +0000 (UTC) Received: by mail-pg1-x542.google.com with SMTP id q34so9120256pgb.11 for ; Fri, 20 Nov 2020 20:50:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=1dCpwtABCBAjt0w8Zd+Ad9bD2W4r2bOOZVX2c+Uu5fs=; b=dWZndGYY+uUFnjhTHmwgKC5kbCrdYmubSee+8hTXlbn/lIbOxvZ5Ttleyy46be1rVp qkjr2mvMwk7LjJWmsfxi3Q4PR6eFA0UA3aAUKtM4P2ZPe+0LcvmlhQcOgYPLkEdCIIzz wNJSVJ0EXPQ/HxHgOwIoeCjJqHxvAtGHQ7F4d2xt/aZfo3mkP4hHGzWSvOr7iTEJHtAj z93hcZeMjn9tZGTzsGiq6KvXp61nQQynOsvheETm4xBNBIa2RT0/JqqAsRTb3j63Rqx/ EMV0tlo39IeO6+VXs+9xIUNUCyxfoLQCYVohHcREV5xp0jF1u+vbO4uW4WRMeIFG5ZTl vHhA== 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:mime-version :content-transfer-encoding; bh=1dCpwtABCBAjt0w8Zd+Ad9bD2W4r2bOOZVX2c+Uu5fs=; b=EmekYBfw8jN6ouLD/VDwB+cYmX6tNyFwafyFfYdbugLLLL6IN3hoH2BUvgUi1ROpQB Tg7zhi+/oFkkolD6DyRwAqFc4jHWiehF1zcxW+Fh635n2kCd7oLK1/xjr9HevbCg9tKd fhnAV94VcLN8Okg99fkXvbWk1tkNnH7BYLH9aCdu1waBD6MUqL5y1h8h0K01qvyeWOEZ 5BC6k9DQFmKnzVXviSfMZeZvHy8NVXaJBlIls7NuIcX26uxHX9TaEQYl44rO10akQOTh vQ8YLpfd4+bbTgazKJX/IVJCSL4ZWq2FSIQBSUYyv5LV1hlJC1YXy3WWNbN6Ro34Ga31 qOwA== X-Gm-Message-State: AOAM530GDz2yvJQcwqul3E/CpP2ROXuJUVmimRYZyyCi8UIbe0TBGnkC yVh7reCTAQYNcqg0rMFhrJiE2Q== X-Google-Smtp-Source: ABdhPJyRE/0jIW/09/jq9G1nAs4OeW/5voPWRhKLPi853CLU1nhono7tAJRPn8bBZ4NkUjbxQj1OVQ== X-Received: by 2002:a17:90a:c003:: with SMTP id p3mr13414860pjt.221.1605934200086; Fri, 20 Nov 2020 20:50:00 -0800 (PST) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id w196sm5407692pfd.177.2020.11.20.20.49.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Nov 2020 20:49:59 -0800 (PST) From: John Stultz To: lkml Subject: [PATCH v6 0/5] dma-buf: Code rework and performance improvements for system heap Date: Sat, 21 Nov 2020 04:49:50 +0000 Message-Id: <20201121044955.58215-1-john.stultz@linaro.org> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sandeep Patil , dri-devel@lists.freedesktop.org, Ezequiel Garcia , Robin Murphy , James Jones , Liam Mark , Laura Abbott , Chris Goldsworthy , Hridya Valsaraju , =?utf-8?q?=C3=98rjan_Eide?= , linux-media@vger.kernel.org, Suren Baghdasaryan , Daniel Mentz Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hey All, So just wanted to send another revision of my patch series of performance optimizations to the dma-buf system heap, this time against drm-misc-next. This series reworks the system heap to use sgtables, and then consolidates the pagelist method from the heap-helpers into the CMA heap. After which the heap-helpers logic is removed (as it is unused). I'd still like to find a better way to avoid some of the logic duplication in implementing the entire dma_buf_ops handlers per heap. But unfortunately that code is tied somewhat to how the buffer's memory is tracked. As more heaps show up I think we'll have a better idea how to best share code, so for now I think this is ok. After this, the series introduces an optimization that Ørjan Eide implemented for ION that avoids calling sync on attachments that don't have a mapping. Finally, an optimization to use larger order pages for the system heap. This change brings us closer to the current performance of the ION allocation code (though there still is a gap due to ION using a mix of deferred-freeing and page pools, I'll be looking at integrating those eventually). This version of the series does not include the system-uncached heap as Daniel wanted further demonstration that it is useful with devices that use the mesa stack. I'm working on such a justification but I don't want to hold up these rework patches in the meantime. thanks -john New in v6: * Dropped the system-uncached heap submission for now * Rebased onto drm-misc-next Cc: Sumit Semwal Cc: Liam Mark Cc: Laura Abbott Cc: Brian Starkey Cc: Hridya Valsaraju Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Daniel Mentz Cc: Chris Goldsworthy Cc: Ørjan Eide Cc: Robin Murphy Cc: Ezequiel Garcia Cc: Simon Ser Cc: James Jones Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org John Stultz (5): dma-buf: system_heap: Rework system heap to use sgtables instead of pagelists dma-buf: heaps: Move heap-helper logic into the cma_heap implementation dma-buf: heaps: Remove heap-helpers code dma-buf: heaps: Skip sync if not mapped dma-buf: system_heap: Allocate higher order pages if available drivers/dma-buf/heaps/Makefile | 1 - drivers/dma-buf/heaps/cma_heap.c | 325 +++++++++++++++++---- drivers/dma-buf/heaps/heap-helpers.c | 274 ------------------ drivers/dma-buf/heaps/heap-helpers.h | 53 ---- drivers/dma-buf/heaps/system_heap.c | 411 ++++++++++++++++++++++++--- 5 files changed, 640 insertions(+), 424 deletions(-) delete mode 100644 drivers/dma-buf/heaps/heap-helpers.c delete mode 100644 drivers/dma-buf/heaps/heap-helpers.h