From patchwork Sun Dec 2 06:19:44 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Souptick Joarder X-Patchwork-Id: 10708311 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C6B3C1057 for ; Sun, 2 Dec 2018 21:23:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B66652A624 for ; Sun, 2 Dec 2018 21:23:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AA18D2A62C; Sun, 2 Dec 2018 21:23:16 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable 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 39F992A624 for ; Sun, 2 Dec 2018 21:23:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6A41889BB0; Sun, 2 Dec 2018 21:23:03 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pf1-x442.google.com (mail-pf1-x442.google.com [IPv6:2607:f8b0:4864:20::442]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0C7DC6E152 for ; Sun, 2 Dec 2018 06:16:01 +0000 (UTC) Received: by mail-pf1-x442.google.com with SMTP id q1so4781854pfi.5 for ; Sat, 01 Dec 2018 22:16:00 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=zpuGNdUnpdN5wTEIRBOxYuxj5rUfCCVuWQ25gpRoE6s=; b=UZzGW6N2aOGxLiwWdr50CzBUxASKwS1LlOXf/E+x7sdD896nCL3ehywSb1I457gLTr YJ8av/LzHBDJh8bZk7hzqJVX2kszeyukt7iJcp8MwRzGGIjCBjYRfxgQOVlnPuS3tLDW U5c5X9+J9h0MqlA1xDceiyAN9FMJVUIKFaWTPJ4mQNEjjP9mIZLkAPBh2HbyQO6swUjW wjXrcjabKCLDt5URnQdt/vDDPr8vJr4klDyAtCK8seTjuN+UfDykLJvYYIfvcobEk2Rp bORwzyhCYMbE7WfIT6Hd6e2RypySsOzrTPs5ta/ZPOgudaLT0IXmXUYLkDt3Ky4U2VHF 5A3w== X-Gm-Message-State: AA+aEWZ21yBt/49/g6gS19ZubYmWnyl9QDOdOtXv41B+mojQB1doLHWO hx1yydtMnbks6kL260QbQnQ= X-Google-Smtp-Source: AFSGD/UBkP9uRpZkSu5Rmi17UiqjfK/g8dHm6TgDXv94eGr1l1iC6bkXVyD45WRhl9f9OjSvEy60DQ== X-Received: by 2002:a63:4c4e:: with SMTP id m14mr9689461pgl.173.1543731360563; Sat, 01 Dec 2018 22:16:00 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.99.148]) by smtp.gmail.com with ESMTPSA id v14sm16952190pgf.3.2018.12.01.22.15.58 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 01 Dec 2018 22:15:59 -0800 (PST) Date: Sun, 2 Dec 2018 11:49:44 +0530 From: Souptick Joarder To: 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, heiko@sntech.de, 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 Subject: [PATCH v2 1/9] mm: Introduce new vm_insert_range API Message-ID: <20181202061944.GA3094@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Mailman-Approved-At: Sun, 02 Dec 2018 21:23:01 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, xen-devel@lists.xen.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, linux1394-devel@lists.sourceforge.net, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP 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. This API is tested by Heiko for Rockchip drm driver, on rk3188, rk3288, rk3328 and rk3399 with graphics. Signed-off-by: Souptick Joarder Reviewed-by: Matthew Wilcox Tested-by: Heiko Stuebner Reviewed-by: Mike Rapoport --- include/linux/mm_types.h | 3 +++ mm/memory.c | 38 ++++++++++++++++++++++++++++++++++++++ mm/nommu.c | 7 +++++++ 3 files changed, 48 insertions(+) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 5ed8f62..15ae24f 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -523,6 +523,9 @@ extern void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, extern void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end); +int vm_insert_range(struct vm_area_struct *vma, unsigned long addr, + struct page **pages, unsigned long page_count); + static inline void init_tlb_flush_pending(struct mm_struct *mm) { atomic_set(&mm->tlb_flush_pending, 0); diff --git a/mm/memory.c b/mm/memory.c index 15c417e..84ea46c 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1478,6 +1478,44 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr, } /** + * vm_insert_range - insert range of kernel pages into user vma + * @vma: user vma to map to + * @addr: target user address of this page + * @pages: pointer to array of source kernel pages + * @page_count: number of pages need to insert into user vma + * + * This allows drivers to insert range of kernel pages they've allocated + * into a user vma. This is a generic function which drivers can use + * rather than using their own way of mapping range of kernel pages into + * user vma. + * + * If we fail to insert any page into the vma, the function will return + * immediately leaving any previously-inserted pages present. Callers + * from the mmap handler may immediately return the error as their caller + * will destroy the vma, removing any successfully-inserted pages. Other + * callers should make their own arrangements for calling unmap_region(). + * + * Context: Process context. Called by mmap handlers. + * Return: 0 on success and error code otherwise + */ +int vm_insert_range(struct vm_area_struct *vma, unsigned long addr, + struct page **pages, unsigned long page_count) +{ + unsigned long uaddr = addr; + int ret = 0, i; + + for (i = 0; i < page_count; i++) { + ret = vm_insert_page(vma, uaddr, pages[i]); + if (ret < 0) + return ret; + uaddr += PAGE_SIZE; + } + + return ret; +} +EXPORT_SYMBOL(vm_insert_range); + +/** * vm_insert_page - insert single page into user vma * @vma: user vma to map to * @addr: target user address of this page diff --git a/mm/nommu.c b/mm/nommu.c index 749276b..d6ef5c7 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -473,6 +473,13 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, } EXPORT_SYMBOL(vm_insert_page); +int vm_insert_range(struct vm_area_struct *vma, unsigned long addr, + struct page **pages, unsigned long page_count) +{ + return -EINVAL; +} +EXPORT_SYMBOL(vm_insert_range); + /* * sys_brk() for the most part doesn't need the global kernel * lock, except when an application is doing something nasty From patchwork Sun Dec 2 06:22:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Souptick Joarder X-Patchwork-Id: 10708337 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 84FD21057 for ; Sun, 2 Dec 2018 21:23:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 76E8F29DE0 for ; Sun, 2 Dec 2018 21:23:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6AC0529FD9; Sun, 2 Dec 2018 21:23:53 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED 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 2DFE329DE0 for ; Sun, 2 Dec 2018 21:23:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 73D8989D64; Sun, 2 Dec 2018 21:23:29 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pl1-x641.google.com (mail-pl1-x641.google.com [IPv6:2607:f8b0:4864:20::641]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6BA086E152 for ; Sun, 2 Dec 2018 06:19:11 +0000 (UTC) Received: by mail-pl1-x641.google.com with SMTP id k8so4811349pls.11 for ; Sat, 01 Dec 2018 22:19:11 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=ng6k7XN2+E7qu+YJG+ewVaHjUak4Dnv0s5kVr6uQuLI=; b=fh46zCKvCzMVkwOpf5Jg4EoZAVbj1v8GMrt60FC0NgUV2YauGBJispgC1e8CAQigW5 aD6hfv2grt7xFzFGkLbmk6LeN3iPyivy0jnXvbhVA8Pgy9hF0vAH+qSGUh+P7G8LhAup hc0W75tT74FQFQpEYipFaRSPTSUQBGrtBHlmYeSx9pH02rkXV2z1HP14/wVXu73658Dp WWZ8a5oKQNRP+KeqlzbtlgMqAfaejAX9jme0YnOuHPFeFYG2NSDqUAuEXqCf/M+ILpyH RTjtyQUoth/dv06/1y+oU8BOiLuyycOEb2VOTs6LWJAxTf/eujYmv7zXuv9IvzAfhQqf Q0aA== X-Gm-Message-State: AA+aEWZV7qrO+envOpjUCjoJCHH5dwUcZBSpmBJjgfDUKG5rJsEIiiFm QkwJVvRY8/x+EK3Gy6HmTvw= X-Google-Smtp-Source: AFSGD/WRNjFD6zB7/hjn8Xn+aoz1dyOHhd/PEH2NIgt7PDmUyJF+fZfXXjivwgpQAMMMOqZJ+B9xkw== X-Received: by 2002:a17:902:e085:: with SMTP id cb5mr11348736plb.24.1543731551018; Sat, 01 Dec 2018 22:19:11 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.99.148]) by smtp.gmail.com with ESMTPSA id n73sm14870007pfj.148.2018.12.01.22.19.09 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 01 Dec 2018 22:19:10 -0800 (PST) Date: Sun, 2 Dec 2018 11:52:55 +0530 From: Souptick Joarder To: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, hjc@rock-chips.com, heiko@sntech.de, airlied@linux.ie Subject: [PATCH v2 4/9] drm/rockchip/rockchip_drm_gem.c: Convert to use vm_insert_range Message-ID: <20181202062255.GA3159@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Mailman-Approved-At: Sun, 02 Dec 2018 21:23:01 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mm@kvack.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Convert to use vm_insert_range() to map range of kernel memory to user vma. Signed-off-by: Souptick Joarder Tested-by: Heiko Stuebner Acked-by: Heiko Stuebner --- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 20 ++------------------ 1 file changed, 2 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index a8db758..2cb83bb 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -221,26 +221,10 @@ static int rockchip_drm_gem_object_mmap_iommu(struct drm_gem_object *obj, struct vm_area_struct *vma) { struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); - unsigned int i, count = obj->size >> PAGE_SHIFT; unsigned long user_count = vma_pages(vma); - unsigned long uaddr = vma->vm_start; - unsigned long offset = vma->vm_pgoff; - unsigned long end = user_count + offset; - int ret; - - if (user_count == 0) - return -ENXIO; - if (end > count) - return -ENXIO; - for (i = offset; i < end; i++) { - ret = vm_insert_page(vma, uaddr, rk_obj->pages[i]); - if (ret) - return ret; - uaddr += PAGE_SIZE; - } - - return 0; + return vm_insert_range(vma, vma->vm_start, rk_obj->pages, + user_count); } static int rockchip_drm_gem_object_mmap_dma(struct drm_gem_object *obj, From patchwork Sun Dec 2 06:24:08 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Souptick Joarder X-Patchwork-Id: 10708307 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9F68414E2 for ; Sun, 2 Dec 2018 21:23:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 908A82A624 for ; Sun, 2 Dec 2018 21:23:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 84FEE2A62C; Sun, 2 Dec 2018 21:23:12 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable 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 41BE32A624 for ; Sun, 2 Dec 2018 21:23:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 03FBE89BAB; Sun, 2 Dec 2018 21:23:03 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pl1-x642.google.com (mail-pl1-x642.google.com [IPv6:2607:f8b0:4864:20::642]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0D5A76E152 for ; Sun, 2 Dec 2018 06:20:25 +0000 (UTC) Received: by mail-pl1-x642.google.com with SMTP id e5so4830030plb.5 for ; Sat, 01 Dec 2018 22:20:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=YwqNkUNPLYdK07Ra2/mSQ+jZoA95B8gqjnUO/EioucE=; b=FxWd5i6xVz2ZmkzYBhEQUJ6yXqGLRX/gaeclvWOCm7lMMjb3oVxJ/GUEu2uS6XCK7a /HA0Bl2yEZlOnTh7CImKPy5ZTuc4KOaD3oU1qZv1orbrBR9cHozZ9PY3gAVDM9Oeev4m 67gxuW5MiLIJL/FHBcyLOe+mzJNiHpO5K2kryaflS4lCStW0L/gV8cz9n4DL1fEDS1Pg s+6vpOLBSWH6EuWqbOXZrK1NXOtZ2EO9+PhdBfmzCdXnhnB0OAYEiJsfHplywqRWQ8Vg 5YhbGMMaVd/C8m7We0c+hq3lVnqUVIaRtVCFhkvqNc95VJSRfw+e6hMnL/Hy0TVJvpYO vdUw== X-Gm-Message-State: AA+aEWa9TsIs4EnO1ka3DpVTr7BhO73or3h5yqPwOBlWnzfvF1lOX/OH +ikdTPNF04bGEShuLOJDVwA= X-Google-Smtp-Source: AFSGD/VY5/fEWSrHIAji3y6gn1HY31kQbbulywZEulPpaUoQZqHYw4pOSjtRtYYrVApigSKFsr3e/g== X-Received: by 2002:a17:902:7603:: with SMTP id k3mr11634668pll.285.1543731624627; Sat, 01 Dec 2018 22:20:24 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.99.148]) by smtp.gmail.com with ESMTPSA id 128sm16732440pfu.129.2018.12.01.22.20.23 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 01 Dec 2018 22:20:23 -0800 (PST) Date: Sun, 2 Dec 2018 11:54:08 +0530 From: Souptick Joarder To: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, oleksandr_andrushchenko@epam.com, airlied@linux.ie Subject: [PATCH v2 5/9] drm/xen/xen_drm_front_gem.c: Convert to use vm_insert_range Message-ID: <20181202062408.GA3178@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Mailman-Approved-At: Sun, 02 Dec 2018 21:23:01 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, xen-devel@lists.xen.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Convert to use vm_insert_range() to map range of kernel memory to user vma. Signed-off-by: Souptick Joarder Reviewed-by: Matthew Wilcox Reviewed-by: Oleksandr Andrushchenko --- drivers/gpu/drm/xen/xen_drm_front_gem.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/xen/xen_drm_front_gem.c b/drivers/gpu/drm/xen/xen_drm_front_gem.c index 47ff019..c21e5d1 100644 --- a/drivers/gpu/drm/xen/xen_drm_front_gem.c +++ b/drivers/gpu/drm/xen/xen_drm_front_gem.c @@ -225,8 +225,7 @@ struct drm_gem_object * static int gem_mmap_obj(struct xen_gem_object *xen_obj, struct vm_area_struct *vma) { - unsigned long addr = vma->vm_start; - int i; + int ret; /* * clear the VM_PFNMAP flag that was set by drm_gem_mmap(), and set the @@ -247,18 +246,11 @@ static int gem_mmap_obj(struct xen_gem_object *xen_obj, * FIXME: as we insert all the pages now then no .fault handler must * be called, so don't provide one */ - for (i = 0; i < xen_obj->num_pages; i++) { - int ret; - - ret = vm_insert_page(vma, addr, xen_obj->pages[i]); - if (ret < 0) { - DRM_ERROR("Failed to insert pages into vma: %d\n", ret); - return ret; - } - - addr += PAGE_SIZE; - } - return 0; + ret = vm_insert_range(vma, vma->vm_start, xen_obj->pages, + xen_obj->num_pages); + if (ret < 0) + DRM_ERROR("Failed to insert pages into vma: %d\n", ret); + return ret; } int xen_drm_front_gem_mmap(struct file *filp, struct vm_area_struct *vma)