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=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_MUTT 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 68068C43387 for ; Mon, 17 Dec 2018 20:19:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 35BC7206A2 for ; Mon, 17 Dec 2018 20:19:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HDTJCfgn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389457AbeLQUTn (ORCPT ); Mon, 17 Dec 2018 15:19:43 -0500 Received: from mail-pl1-f196.google.com ([209.85.214.196]:38833 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728155AbeLQUTm (ORCPT ); Mon, 17 Dec 2018 15:19:42 -0500 Received: by mail-pl1-f196.google.com with SMTP id e5so6663095plb.5 for ; Mon, 17 Dec 2018 12:19:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=vHtNG5YY7oqAEcnnEFXV1qkzWXHTgkZmEB/ZXAxtcsE=; b=HDTJCfgnh+j0eG6OnfEpzoBfilcO9b+44SSH+rczBsLIYMzVoHJCuW+pyMCFqzu1V/ Zy29YyLtOwX2UDdP/SXCBW97juLvRF2DVYMvTzi4i7gL6TPz9Limk1pxhoJF2ZR2gdCa 7tJqkTGxerJpUQ4Okn3XGjeaWWgwbzll56yffTbkYAxyfBuv/nGBVByby04RrCEOGLBh iw4KiWfDMyasNKW7SRmZWh7oGNwhOdjF9l+eHcRuO4ZmQmXbT2DzCdawrCDVnJ6qPfsO 1gQeUUbdnGeiVu6w6a6Y+0opTR0MRZS8NcET2Nm32kXGicA27G+cCt8iUbI/NAzK56ww TNPA== 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=vHtNG5YY7oqAEcnnEFXV1qkzWXHTgkZmEB/ZXAxtcsE=; b=jPlU7FliLzceOkEZ2Rwjb4xiIRS0hBE1fc1RfNgkCtUFAD/AkS8UCg8t3snVJAVmZA YJCyVRqlBCfZIUurKEomQQRPM/ZFoOD+w4SK4b3wFSVL6lA9KTYva/JgJWM8WGFx++1E c7icSOowPlcbvvewR/FbV+j11gH+pFIoakDPFlXwQH/k+5CU2iMwuAa8QRL3S/AppHEq jSuV0nUDj8fkJe7+1M8qK+XPocMtz/mqieIe8o3v0e4iNvhZV9K3lkUKd2Yjpu8GVcDW D4GDpVSUBmJP1dL4i2LG+4/Ia4KCk9Hb0uj+4m1xZS5N8o33RAKldCQUC1Y0c/KJ24wC ps/A== X-Gm-Message-State: AA+aEWZzmOQtgLbxNaRiFUb6FQPSxy8BbgBm+IOyqnxM+o7bMIIP+KKI p8G4TU38O/xIM5/c15yiXMs= X-Google-Smtp-Source: AFSGD/VztJFrJiCc5TxrvjdoAMM5foV3+t6D91QTlRMzDwrlUkxArWBo7WpY83vLc2dZ2XXJU04Cxw== X-Received: by 2002:a17:902:8a8a:: with SMTP id p10mr14060709plo.50.1545077982019; Mon, 17 Dec 2018 12:19:42 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.98.208]) by smtp.gmail.com with ESMTPSA id u87sm31872783pfi.2.2018.12.17.12.19.40 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 17 Dec 2018 12:19:41 -0800 (PST) Date: Tue, 18 Dec 2018 01:53:34 +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 Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org Subject: [PATCH v4 4/9] drm/rockchip/rockchip_drm_gem.c: Convert to use vm_insert_range Message-ID: <20181217202334.GA11758@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index a8db758..8279084 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -221,26 +221,11 @@ 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 + offset, + user_count - offset); } static int rockchip_drm_gem_object_mmap_dma(struct drm_gem_object *obj, -- 1.9.1