From patchwork Tue Apr 18 18:27:14 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laura Abbott X-Patchwork-Id: 9686019 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0F332601C2 for ; Tue, 18 Apr 2017 18:29:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0495E28375 for ; Tue, 18 Apr 2017 18:29:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ED5D62839C; Tue, 18 Apr 2017 18:29:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.4 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB8752838E for ; Tue, 18 Apr 2017 18:29:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932776AbdDRS2r (ORCPT ); Tue, 18 Apr 2017 14:28:47 -0400 Received: from mail-qt0-f173.google.com ([209.85.216.173]:33907 "EHLO mail-qt0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932617AbdDRS2C (ORCPT ); Tue, 18 Apr 2017 14:28:02 -0400 Received: by mail-qt0-f173.google.com with SMTP id c45so1153497qtb.1 for ; Tue, 18 Apr 2017 11:28:02 -0700 (PDT) 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=1pU8INfb6q9VWTxctl4fOrcZbdKVa8pPkWvPs+wObTk=; b=aiHm8GIlyPOO4q/94vpLqB32mEJxw+PURNEGAcqGe98XWLDxNVym5GLynCUL5Osjpc a17hmv7T2f+2E4f3zKAUzdUoj6PKf6qyEB4uNAEZeW2rR2YxLUYpgk0LfX2MenpPmbaZ KovQ0kdIQY14m2HIHtRWQluGbFzH1khRa9D4l2/LT8tIF88ABVQZu3mxhCRTDNMx7TuF JgbcWpuUh9hb8suSLiB8OhMITxiGn+BnWVLJPEEHZBGnzU0qCDTW/IEZU69dkglyeWfa /bMgyhzLjEaCs8cfLRCTFBxDar6IcgfG4vRyZuvi2LMS6ZMGQIk3SRRLCv1raNAbc3Bk edWQ== X-Gm-Message-State: AN3rC/7ml+PkkqOZJvhFQVeL5B13IhO6+xfkaaBPHt49oByRfhkku8J5 ja0o2pJJU5wvIq1o X-Received: by 10.200.57.34 with SMTP id s31mr14802767qtb.281.1492540081844; Tue, 18 Apr 2017 11:28:01 -0700 (PDT) Received: from labbott-redhat-machine.redhat.com ([2601:602:9802:a8dc::159c]) by smtp.gmail.com with ESMTPSA id q66sm10142381qkd.69.2017.04.18.11.27.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 18 Apr 2017 11:28:00 -0700 (PDT) From: Laura Abbott To: Sumit Semwal , Riley Andrews , arve@android.com, Greg Kroah-Hartman Cc: Laura Abbott , romlem@google.com, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, Brian Starkey , Daniel Vetter , Mark Brown , Benjamin Gaignard , linux-mm@kvack.org, Laurent Pinchart Subject: [PATCHv4 12/12] staging/android: Update Ion TODO list Date: Tue, 18 Apr 2017 11:27:14 -0700 Message-Id: <1492540034-5466-13-git-send-email-labbott@redhat.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1492540034-5466-1-git-send-email-labbott@redhat.com> References: <1492540034-5466-1-git-send-email-labbott@redhat.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Most of the items have been taken care of by a clean up series. Remove the completed items and add a few new ones. Signed-off-by: Laura Abbott --- drivers/staging/android/TODO | 21 ++++----------------- 1 file changed, 4 insertions(+), 17 deletions(-) diff --git a/drivers/staging/android/TODO b/drivers/staging/android/TODO index 8f3ac37..5f14247 100644 --- a/drivers/staging/android/TODO +++ b/drivers/staging/android/TODO @@ -7,23 +7,10 @@ TODO: ion/ - - Remove ION_IOC_SYNC: Flushing for devices should be purely a kernel internal - interface on top of dma-buf. flush_for_device needs to be added to dma-buf - first. - - Remove ION_IOC_CUSTOM: Atm used for cache flushing for cpu access in some - vendor trees. Should be replaced with an ioctl on the dma-buf to expose the - begin/end_cpu_access hooks to userspace. - - Clarify the tricks ion plays with explicitly managing coherency behind the - dma api's back (this is absolutely needed for high-perf gpu drivers): Add an - explicit coherency management mode to flush_for_device to be used by drivers - which want to manage caches themselves and which indicates whether cpu caches - need flushing. - - With those removed there's probably no use for ION_IOC_IMPORT anymore either - since ion would just be the central allocator for shared buffers. - - Add dt-binding to expose cma regions as ion heaps, with the rule that any - such cma regions must already be used by some device for dma. I.e. ion only - exposes existing cma regions and doesn't reserve unecessarily memory when - booting a system which doesn't use ion. + - Add dt-bindings for remaining heaps (chunk and carveout heaps). This would + involve putting appropriate bindings in a memory node for Ion to find. + - Split /dev/ion up into multiple nodes (e.g. /dev/ion/heap0) + - Better test framework (integration with VGEM was suggested) Please send patches to Greg Kroah-Hartman and Cc: Arve Hjønnevåg and Riley Andrews