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=-11.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 BDCF0C43387 for ; Tue, 18 Dec 2018 16:43:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 88E0E218A2 for ; Tue, 18 Dec 2018 16:43:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1545151413; bh=sM1mv4hX+6+iZR3Uo6X6o24Mo2/jsIZ+lBMnESUtmEs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=todNZcHXkPzJn76G8o23qWm8srC36FE5ZOMot9X5u1qqScv4gQ0ZAbryhyaw0PfN2 XmkkxVboWX/FYofIABDKDuzJoBFzQUCrFYSUw8w/HYg4fWOmZlOaDlMtEyLz/v7TIs JtKzFrus3EYBXJ8XE4C/hMzPgDWBUs1jnznfecxM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727155AbeLRQnc (ORCPT ); Tue, 18 Dec 2018 11:43:32 -0500 Received: from mail.kernel.org ([198.145.29.99]:38886 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727498AbeLRQlZ (ORCPT ); Tue, 18 Dec 2018 11:41:25 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A135E218A2; Tue, 18 Dec 2018 16:41:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1545151284; bh=sM1mv4hX+6+iZR3Uo6X6o24Mo2/jsIZ+lBMnESUtmEs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rcSyvflQVLG0LBaXglasgGrDr00YRIeR8Z0+z0cawJer9sbn37WhF/kMhPOTzv3WW cfVlpzseNlbEgwzKo4T+951qKIWIJh7BG+D4uW5GDndVPbtJWuou/Vl2UkutxdbH4v ozHl5nQFmrIePTfWECC8mEVkigYkzW88GdRw3dts= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tina Zhang , Zhenyu Wang Subject: [PATCH 4.19 36/44] drm/i915/gvt: Fix tiled memory decoding bug on BDW Date: Tue, 18 Dec 2018 17:39:48 +0100 Message-Id: <20181218163931.674655690@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20181218163927.119623235@linuxfoundation.org> References: <20181218163927.119623235@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tina Zhang commit a40fa231bb64b33e2cd54cf8ef44a9f89875fa11 upstream. Commit b244ffa15c8b ("drm/i915/gvt: Fix drm_format_mod value for vGPU plane") introduced a regression issue to the tiled memory decoding on BDW. This patch can fix this issue. Here is the issue detail: https://github.com/intel/gvt-linux/issues/61 v1->v2: - Refine the commit message. (Zhenyu) Fixes: b244ffa15c8b("drm/i915/gvt: Fix drm_format_mod value for vGPU plane") Signed-off-by: Tina Zhang Cc: stable@vger.kernel.org # v4.19+ Cc: Zhenyu Wang Signed-off-by: Zhenyu Wang Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/gvt/fb_decoder.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/i915/gvt/fb_decoder.c +++ b/drivers/gpu/drm/i915/gvt/fb_decoder.c @@ -235,7 +235,7 @@ int intel_vgpu_decode_primary_plane(stru plane->bpp = skl_pixel_formats[fmt].bpp; plane->drm_format = skl_pixel_formats[fmt].drm_format; } else { - plane->tiled = !!(val & DISPPLANE_TILED); + plane->tiled = val & DISPPLANE_TILED; fmt = bdw_format_to_drm(val & DISPPLANE_PIXFORMAT_MASK); plane->bpp = bdw_pixel_formats[fmt].bpp; plane->drm_format = bdw_pixel_formats[fmt].drm_format;