From patchwork Mon Apr 3 18:58:04 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laura Abbott X-Patchwork-Id: 9660357 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 140036032D for ; Mon, 3 Apr 2017 19:00:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 084A8284C2 for ; Mon, 3 Apr 2017 19:00:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F0FEB284F5; Mon, 3 Apr 2017 19:00:20 +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=unavailable 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 A8BA7284C2 for ; Mon, 3 Apr 2017 19:00:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753090AbdDCTAB (ORCPT ); Mon, 3 Apr 2017 15:00:01 -0400 Received: from mail-qk0-f179.google.com ([209.85.220.179]:35087 "EHLO mail-qk0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752946AbdDCS7Z (ORCPT ); Mon, 3 Apr 2017 14:59:25 -0400 Received: by mail-qk0-f179.google.com with SMTP id g195so50946843qke.2 for ; Mon, 03 Apr 2017 11:59:24 -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=IY8N4FRtDgqrXnE+bIc2wZTGapEytcvWiLZ3m30QSUCM9MjlbagpyOvtMwfJZW5tMH q8IYjPdTglAPsDPrwB9lucStmNBRiP8AyBVYQMEkfuMbpn/+qWyJ7spYOXq6sd3cNQUz uBO8rE/wAtTAz9qGNYI0sP8BhOjbRStN3P9BouD8D2GlIpwBHJCDWY/DBFD+Mb6kXJIA ruPMD4s5P/4EfoSCufqy5ZsVws8x9XvBMqwJBnwO3jOAk2vq+VnZGl95Ze4TvPnpZSg+ mL/f6R1uDnQ6PCSPHVuh+K4usmNDa4g32QNDvnehdgJA1vmATnd8HVdMjun+6TNcutPw tS2Q== X-Gm-Message-State: AFeK/H0LsHPvJOtUqY8G0DgxEfjzEbaJZzb/frau7Y06JtZVmHY617l/ybhMKsNkx8E+XV0F X-Received: by 10.55.82.68 with SMTP id g65mr17241716qkb.116.1491245964081; Mon, 03 Apr 2017 11:59:24 -0700 (PDT) Received: from labbott-redhat-machine.redhat.com ([2601:602:9802:a8dc:1722:8a6b:a66c:79eb]) by smtp.gmail.com with ESMTPSA id e5sm10173689qtc.6.2017.04.03.11.59.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Apr 2017 11:59:22 -0700 (PDT) From: Laura Abbott To: Sumit Semwal , Riley Andrews , arve@android.com Cc: Laura Abbott , romlem@google.com, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Greg Kroah-Hartman , 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: [PATCHv3 22/22] staging/android: Update Ion TODO list Date: Mon, 3 Apr 2017 11:58:04 -0700 Message-Id: <1491245884-15852-23-git-send-email-labbott@redhat.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1491245884-15852-1-git-send-email-labbott@redhat.com> References: <1491245884-15852-1-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