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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 7869AC433E6 for ; Fri, 19 Mar 2021 09:40:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4523564F70 for ; Fri, 19 Mar 2021 09:40:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229736AbhCSJjd (ORCPT ); Fri, 19 Mar 2021 05:39:33 -0400 Received: from wout1-smtp.messagingengine.com ([64.147.123.24]:42641 "EHLO wout1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229844AbhCSJjP (ORCPT ); Fri, 19 Mar 2021 05:39:15 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.west.internal (Postfix) with ESMTP id 183CC155E; Fri, 19 Mar 2021 05:39:15 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute4.internal (MEProxy); Fri, 19 Mar 2021 05:39:15 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kroah.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm3; bh=kO9EIFbwcecS2o10zQbVodVtOmf mhTFCB7/k828bLoM=; b=YLYiim/tX8bPjk6AuPLON+srkfCq/Lqn4e3GY5TcmBd sOvBH65cXWxq792sw8n5J/XrI/Uh1w9NAr7tgXED9NkrGgl2m8jttm6cbz9fq95c iXFM51S1tclmjcKX3N38gGPpdWzL67v+tmgUp0+N3AzwN5cLj6T6i6DXreLJXAmu 4Qylc2Xh1Jy8cq5Gd6ESSCvv0+UuZu3ObJiUq6tD5AhN0EwpgfFt8eTBSaBYkbOU yKtk9zp9MTH5tSXE56NrpLZDMNt7YWl947MK0PWWPvvEM1NVX9WuImHrWNbg0HcT CPWxSnPW1UUXD8S2dC2hyUydRrP5mpS/LbIVuBNgUiw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm2; bh=kO9EIF bwcecS2o10zQbVodVtOmfmhTFCB7/k828bLoM=; b=O8KkvYtrXIGVAlip+J5f5l v5NJMogcAmJnDWqshdFnYnMXLGB81wkWLapHzXi9FYtg9b32AKsU299YPNcAmLRB m2ZipM0vXyIw4xn88mVoAhq/se92o8DYgGHeaSzVJv/Gcav9a0r5TDF8QOh1FixF KZoyAIHhY3r3IvQSmA6KJ6HJ4izGXMSIxgxYSA4fSowurwtYVGcLd2WJXqR3orJK F59dt2xlSufMkcyWQuGa8tJS9Jr/TDEqnCaT5Aju67ffpfkaFx/XY7Kl5/41euSM icp/AiIzNvTi/KPF4vcK9FQbvQFJ60kpCwkCArwN38kgVPxAAzgL9XlUhFiUxFmw == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrudefkedgtdeiucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepfffhvffukfhfgggtuggjsehttdortddttddvnecuhfhrohhmpefirhgvghcu mffjuceoghhrvghgsehkrhhorghhrdgtohhmqeenucggtffrrghtthgvrhhnpedvvdetke fhgeejudeuueelfeethfeivefhheetveevhefhueduheegieefkeekgeenucffohhmrghi nhepfhhrvggvuggvshhkthhophdrohhrghenucfkphepkeefrdekiedrjeegrdeigeenuc evlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehgrhgvghes khhrohgrhhdrtghomh X-ME-Proxy: Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) by mail.messagingengine.com (Postfix) with ESMTPA id 04260108005C; Fri, 19 Mar 2021 05:39:13 -0400 (EDT) Date: Fri, 19 Mar 2021 10:39:12 +0100 From: Greg KH To: Colin Xu Cc: stable@vger.kernel.org, intel-gvt-dev@lists.freedesktop.org, zhenyuw@linux.intel.com Subject: Re: [PATCH 5/5] drm/i915/gvt: Fix vfio_edid issue for BXT/APL Message-ID: References: <982acc6579f652db9ed67f042453c302055b0692.1615946755.git.colin.xu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <982acc6579f652db9ed67f042453c302055b0692.1615946755.git.colin.xu@intel.com> Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Wed, Mar 17, 2021 at 10:55:04AM +0800, Colin Xu wrote: > commit 4ceb06e7c336f4a8d3f3b6ac9a4fea2e9c97dc07 upstream > > BXT/APL has different isr/irr/hpd regs compared with other GEN9. If not > setting these regs bits correctly according to the emulated monitor > (currently a DP on PORT_B), although gvt still triggers a virtual HPD > event, the guest driver won't detect a valid HPD pulse thus no full > display detection will be executed to read the updated EDID. > > With this patch, the vfio_edid is enabled again on BXT/APL, which is > previously disabled. > > Fixes: 642403e3599e ("drm/i915/gvt: Temporarily disable vfio_edid for BXT/APL") > Signed-off-by: Colin Xu > Signed-off-by: Zhenyu Wang > Link: http://patchwork.freedesktop.org/patch/msgid/20201201060329.142375-1-colin.xu@intel.com > Reviewed-by: Zhenyu Wang > (cherry picked from commit 4ceb06e7c336f4a8d3f3b6ac9a4fea2e9c97dc07) > Signed-off-by: Colin Xu > Cc: # 5.4.y > --- > drivers/gpu/drm/i915/gvt/display.c | 83 ++++++++++++++++++++++-------- > drivers/gpu/drm/i915/gvt/vgpu.c | 2 +- > 2 files changed, 62 insertions(+), 23 deletions(-) Can you also send a backport for 5.10.y for this patch as it is needed there as well? thanks, greg k-h