From mboxrd@z Thu Jan 1 00:00:00 1970 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=-5.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 2355DC47404 for ; Mon, 7 Oct 2019 21:21:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E1F3C20867 for ; Mon, 7 Oct 2019 21:21:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ANrNw1ik" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729502AbfJGVVl (ORCPT ); Mon, 7 Oct 2019 17:21:41 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:41042 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728753AbfJGVVk (ORCPT ); Mon, 7 Oct 2019 17:21:40 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To: Subject:Sender:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=N5EcAmKjzPUXozCqPG1kX/cDR4yO/jPB64zcL2DCNeY=; b=ANrNw1ikjbWO3futfL+1WVHL8 QSJs5oZujkWlghJJ0qq4RQ00Kcw0cYIf0SqEoB5kiNDn6Bf6Nwy/l0I/+ur7XrHSxwxf8veOgmrgR 8FwsrZuHma7vRG2EVwkJOB5f7mGzFbxCs/5EbtGw4SEzrQ9tq1Q3caFBgvSCxF4kvn1Pkv2KHKocU Dgolk7MNOh+vVKSSsjYVUg+5FA9ms9FpQKk9a9jIz7QP/C2AQuMcTcXnuc5sIW0hqdkJQMaGe5Ei+ viHJi22wWdlZvi8SRLmQ6CYZgmM0RrCt78sUJiontCuaTXRzjpfMLufs6Fb+e/XuWQGdalJ2tK3j9 P5xK5v2Rg==; Received: from [2601:1c0:6280:3f0::9ef4] by bombadil.infradead.org with esmtpsa (Exim 4.92.2 #3 (Red Hat Linux)) id 1iHaRg-0007ca-D6; Mon, 07 Oct 2019 21:21:32 +0000 Subject: Re: [PATCH v10 1/5] dma-buf: Add dma-buf heaps framework To: John Stultz , lkml Cc: "Andrew F. Davis" , Laura Abbott , Benjamin Gaignard , Sumit Semwal , Liam Mark , Pratik Patel , Brian Starkey , Vincent Donnefort , Sudipto Paul , Christoph Hellwig , Chenbo Feng , Alistair Strachan , Hridya Valsaraju , Hillf Danton , dri-devel@lists.freedesktop.org References: <20191007211830.42838-1-john.stultz@linaro.org> <20191007211830.42838-2-john.stultz@linaro.org> From: Randy Dunlap Message-ID: Date: Mon, 7 Oct 2019 14:21:29 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191007211830.42838-2-john.stultz@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/7/19 2:18 PM, John Stultz wrote: > diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig > index a23b6752d11a..6e9c7c4d7447 100644 > --- a/drivers/dma-buf/Kconfig > +++ b/drivers/dma-buf/Kconfig > @@ -44,4 +44,13 @@ config DMABUF_SELFTESTS > default n > depends on DMA_SHARED_BUFFER > > +menuconfig DMABUF_HEAPS > + bool "DMA-BUF Userland Memory Heaps" > + select DMA_SHARED_BUFFER > + help > + Choose this option to enable the DMA-BUF userland memory heaps, heaps. > + this options creates per heap chardevs in /dev/dma_heap/ which This > + allows userspace to use to allocate dma-bufs that can be shared ?? to allocate & use > + between drivers. > + > endmenu -- ~Randy