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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 9E3E2C433DF for ; Thu, 20 Aug 2020 00:13:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D0F72075E for ; Thu, 20 Aug 2020 00:13:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597882403; bh=ASNGJWgtwtS9VpHWrz2J5lsF5hX9JWswGiuJzWsIJqw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ndreD8no2I08lpcdEVi9IyAMW+fVJmsc7uFdcMVZ79VVAcIxspoLcQ4ZcQrfZukRf grokADZu9XH2sbMeZVjjiLd+iGXbPmLAqLo+1D30w73xGNYnhOb/SulZG+YK1oSzrt d2fqAzr4ccwxKNU1d/q3FzyhgGkB5MM2KRqmQku8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727125AbgHTANW (ORCPT ); Wed, 19 Aug 2020 20:13:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:57470 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726911AbgHTABg (ORCPT ); Wed, 19 Aug 2020 20:01:36 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BB75F21744; Thu, 20 Aug 2020 00:01:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597881695; bh=ASNGJWgtwtS9VpHWrz2J5lsF5hX9JWswGiuJzWsIJqw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rGY0YRBj04axn5wjoeYwEMyUEk+2XRLW2NOITe1zXUL9suJC9OMUGnyrHarivVbGl lCWdH3MyILrc8AwktdLt/2bNp2AQc48Z2SStfFrN0fbehOwTgbNtpO9WsPomaLcdxZ SjW2tMs5wKrhglGQIryo1WTVZts/zXVIGhqbCDLA= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Felix Kuehling , Laurent Morichetti , =?UTF-8?q?Christian=20K=C3=B6nig?= , Sasha Levin , dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.8 14/27] drm/ttm: fix offset in VMAs with a pg_offs in ttm_bo_vm_access Date: Wed, 19 Aug 2020 20:01:03 -0400 Message-Id: <20200820000116.214821-14-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200820000116.214821-1-sashal@kernel.org> References: <20200820000116.214821-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Felix Kuehling [ Upstream commit c0001213d195d1bac83e0744c06ff06dd5a8ba53 ] VMAs with a pg_offs that's offset from the start of the vma_node need to adjust the offset within the BO accordingly. This matches the offset calculation in ttm_bo_vm_fault_reserved. Signed-off-by: Felix Kuehling Tested-by: Laurent Morichetti Signed-off-by: Christian König Link: https://patchwork.freedesktop.org/patch/381169/ Signed-off-by: Sasha Levin --- drivers/gpu/drm/ttm/ttm_bo_vm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index fa03fab02076d..33526c5df0e8c 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -505,8 +505,10 @@ static int ttm_bo_vm_access_kmap(struct ttm_buffer_object *bo, int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr, void *buf, int len, int write) { - unsigned long offset = (addr) - vma->vm_start; struct ttm_buffer_object *bo = vma->vm_private_data; + unsigned long offset = (addr) - vma->vm_start + + ((vma->vm_pgoff - drm_vma_node_start(&bo->base.vma_node)) + << PAGE_SHIFT); int ret; if (len < 1 || (offset + len) >> PAGE_SHIFT > bo->num_pages) -- 2.25.1