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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 7BDF3C46475 for ; Thu, 25 Oct 2018 22:27:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1CF2620824 for ; Thu, 25 Oct 2018 22:27:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1CF2620824 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727250AbeJZHBn (ORCPT ); Fri, 26 Oct 2018 03:01:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34714 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726448AbeJZHBn (ORCPT ); Fri, 26 Oct 2018 03:01:43 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 53DD3307D865; Thu, 25 Oct 2018 22:27:15 +0000 (UTC) Received: from malachite.bss.redhat.com (dhcp-10-20-1-11.bss.redhat.com [10.20.1.11]) by smtp.corp.redhat.com (Postfix) with ESMTP id AD9321823B; Thu, 25 Oct 2018 22:27:11 +0000 (UTC) From: Lyude Paul To: intel-gfx@lists.freedesktop.org Cc: "David Airlie" , "Rodrigo Vivi" , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, "Jani Nikula" , "Joonas Lahtinen" Subject: [PATCH 0/2] drm/i915: HPD IRQ storm detection fixes Date: Thu, 25 Oct 2018 18:26:55 -0400 Message-Id: <20181025222657.9241-1-lyude@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Thu, 25 Oct 2018 22:27:15 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ---- IMPORTANT ----- As a note: I have not had the customer who this second patch is for test this yet, I'm sending this ahead of time to make sure this is something that isn't too crazy for upstream to accept. I'm not planning on pushing this after review until I've verified this actually fixes their problems. -------------------- This series contains a fix for a problem which is very difficult to reproduce under normal circumstances without specialized testing hardware, along with a fix that seems to be required for some especially rebellious GM45 laptops. Lyude Paul (2): drm/i915: Fix NULL deref when re-enabling HPD IRQs on systems with MST drm/i915: Add short HPD IRQ storm detection for non-MST systems drivers/gpu/drm/i915/i915_debugfs.c | 89 +++++++++++++++++++++++----- drivers/gpu/drm/i915/i915_drv.h | 15 +++-- drivers/gpu/drm/i915/i915_irq.c | 14 ++++- drivers/gpu/drm/i915/intel_hotplug.c | 87 ++++++++++++++++----------- 4 files changed, 152 insertions(+), 53 deletions(-) -- 2.17.2