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: 9686011 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 3C39B6037E for ; Tue, 18 Apr 2017 18:28:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3143424DA2 for ; Tue, 18 Apr 2017 18:28:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 25EA92838E; Tue, 18 Apr 2017 18:28:18 +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=-3.7 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RCVD_IN_SORBS_SPAM autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0A92624DA2 for ; Tue, 18 Apr 2017 18:28:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 177D86E253; Tue, 18 Apr 2017 18:28:04 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-qt0-f181.google.com (mail-qt0-f181.google.com [209.85.216.181]) by gabe.freedesktop.org (Postfix) with ESMTPS id CB23C6E253 for ; Tue, 18 Apr 2017 18:28:02 +0000 (UTC) Received: by mail-qt0-f181.google.com with SMTP id g60so1083336qtd.3 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=IcxtcHPDhPk5E24oR2RYFsEiYOu5k5Sd0sfvRzNyLx++lkup/YFuKEn2Ll39yliear N6JI2lLqGMcrWZImfnfM74MypFBL4NtwJirY0ycbTxIx9ph9yDWgvA00SoEjK6vqey7F OqLUBdjqvvEg+4ZczxJBQkopGsUlhSvoTc0Pl0GDjEn5KLd9bYeb2oG0qJOTP/lqajZ4 k2c3INuFol8y6ZhPYQy1o6lAK1hoXBJ2kWdErYLkePsZn/ReUUqvTF8wqWVMeuNJg/mI 3BdVaxlofAJEE5rbvxZJMC/Adf7Ua7NIAy6ic7P7lFn2BwUOYoFB15n4ay15xWCtUQdf q6zg== X-Gm-Message-State: AN3rC/6hnRit8wGGHHlNpH5QizuoTH9qzK5TdRQxriBu4LF1EAgbfqXB pHMljpXFG/NH7E7N 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 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 Cc: devel@driverdev.osuosl.org, romlem@google.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-mm@kvack.org, Mark Brown , Laurent Pinchart , Daniel Vetter , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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