From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) by kanga.kvack.org (Postfix) with ESMTP id AF9036B4D9B for ; Wed, 28 Nov 2018 10:21:48 -0500 (EST) Received: by mail-wm1-f71.google.com with SMTP id p15so3082683wmd.0 for ; Wed, 28 Nov 2018 07:21:48 -0800 (PST) Received: from gloria.sntech.de (gloria.sntech.de. [185.11.138.130]) by mx.google.com with ESMTPS id e9si4778051wrt.130.2018.11.28.07.21.47 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 28 Nov 2018 07:21:47 -0800 (PST) From: Heiko =?ISO-8859-1?Q?St=FCbner?= Subject: Re: [PATCH 1/9] mm: Introduce new vm_insert_range API Date: Wed, 28 Nov 2018 16:21:05 +0100 Message-ID: <3555131.qyOKUBSTPx@diego> In-Reply-To: <20181115154530.GA27872@jordon-HP-15-Notebook-PC> References: <20181115154530.GA27872@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: owner-linux-mm@kvack.org List-ID: To: Souptick Joarder Cc: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, kirill.shutemov@linux.intel.com, vbabka@suse.cz, riel@surriel.com, sfr@canb.auug.org.au, rppt@linux.vnet.ibm.com, peterz@infradead.org, linux@armlinux.org.uk, robin.murphy@arm.com, iamjoonsoo.kim@lge.com, treding@nvidia.com, keescook@chromium.org, m.szyprowski@samsung.com, stefanr@s5r6.in-berlin.de, hjc@rock-chips.com, airlied@linux.ie, oleksandr_andrushchenko@epam.com, joro@8bytes.org, pawel@osciak.com, kyungmin.park@samsung.com, mchehab@kernel.org, boris.ostrovsky@oracle.com, jgross@suse.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux1394-devel@lists.sourceforge.net, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, xen-devel@lists.xen.org, iommu@lists.linux-foundation.org, linux-media@vger.kernel.org Am Donnerstag, 15. November 2018, 16:45:30 CET schrieb Souptick Joarder: > Previouly drivers have their own way of mapping range of > kernel pages/memory into user vma and this was done by > invoking vm_insert_page() within a loop. > > As this pattern is common across different drivers, it can > be generalized by creating a new function and use it across > the drivers. > > vm_insert_range is the new API which will be used to map a > range of kernel memory/pages to user vma. > > Signed-off-by: Souptick Joarder > Reviewed-by: Matthew Wilcox Except the missing EXPORT_SYMBOL for module builds this new API is supposed to run also within the Rockchip drm driver, so on rk3188, rk3288, rk3328 and rk3399 with graphics Tested-by: Heiko Stuebner