From patchwork Wed May 28 23:05:15 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 4257791 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id E5E95BF90B for ; Wed, 28 May 2014 23:06:12 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2A072201EC for ; Wed, 28 May 2014 23:06:12 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 63576201BF for ; Wed, 28 May 2014 23:06:11 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A93906E239; Wed, 28 May 2014 16:06:10 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 955BD6E239 for ; Wed, 28 May 2014 16:06:09 -0700 (PDT) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 28 May 2014 16:06:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.98,931,1392192000"; d="scan'208";a="546423788" Received: from sydealwi-mobl.gar.corp.intel.com (HELO ironside.intel.com) ([10.255.12.181]) by fmsmga002.fm.intel.com with ESMTP; 28 May 2014 16:05:16 -0700 From: Ben Widawsky To: Intel GFX Date: Wed, 28 May 2014 16:05:15 -0700 Message-Id: <1401318315-11676-1-git-send-email-benjamin.widawsky@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <+1401318160-3199-1-git-send-email-benjamin.widawsky@intel.com> References: <+1401318160-3199-1-git-send-email-benjamin.widawsky@intel.com> Cc: Ben Widawsky , Ben Widawsky Subject: [Intel-gfx] [PATCH] [v2] drm/i915/bdw: Always issue a force restore X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The PDPs seem to get screwed up otherwise, specifically PDP0. I am not really clear why this is required, it just works with full PPGTT. v2: Only do it for gen8, to limit regression potential Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78891 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78934 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78935 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78936 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78937 Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/i915_gem_context.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 3ffe308..c5330ab 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -568,6 +568,9 @@ mi_set_context(struct intel_engine_cs *ring, else intel_ring_emit(ring, MI_NOOP); + if (INTEL_INFO(ring->dev)->gen == 8) + hw_flags |= MI_FORCE_RESTORE; + intel_ring_emit(ring, MI_NOOP); intel_ring_emit(ring, MI_SET_CONTEXT); intel_ring_emit(ring, i915_gem_obj_ggtt_offset(new_context->obj) |