From patchwork Thu Feb 5 10:47:25 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nick Hoath X-Patchwork-Id: 5783691 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 [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 6544CBF440 for ; Thu, 5 Feb 2015 10:47:46 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9D1052014A for ; Thu, 5 Feb 2015 10:47:45 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id C688520138 for ; Thu, 5 Feb 2015 10:47:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3979772098; Thu, 5 Feb 2015 02:47:44 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id AF7F272095 for ; Thu, 5 Feb 2015 02:47:41 -0800 (PST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP; 05 Feb 2015 02:47:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.09,523,1418112000"; d="scan'208";a="673208368" Received: from nthoath-linux.isw.intel.com ([10.102.226.65]) by fmsmga002.fm.intel.com with ESMTP; 05 Feb 2015 02:47:39 -0800 From: Nick Hoath To: intel-gfx@lists.freedesktop.org Date: Thu, 5 Feb 2015 10:47:25 +0000 Message-Id: <1423133245-23953-11-git-send-email-nicholas.hoath@intel.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1423133245-23953-1-git-send-email-nicholas.hoath@intel.com> References: <1423133245-23953-1-git-send-email-nicholas.hoath@intel.com> Subject: [Intel-gfx] [PATCH 10/10] drm/i915: gen 9 h/w w/a (WaEnableForceRestoreInCtxtDescForVCS) X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 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=-2.3 required=5.0 tests=BAYES_00,GAPPY_SUBJECT, RCVD_IN_DNSWL_MED, T_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 From: "Hoath, Nicholas" Add: WaEnableForceRestoreInCtxtDescForVCS v1: Add stepping check. Signed-off-by: Nick Hoath Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com) --- drivers/gpu/drm/i915/intel_lrc.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index a94346f..cb7214f 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -254,8 +254,10 @@ u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj) return lrca >> 12; } -static uint64_t execlists_ctx_descriptor(struct drm_i915_gem_object *ctx_obj) +static uint64_t execlists_ctx_descriptor(struct intel_engine_cs *ring, + struct drm_i915_gem_object *ctx_obj) { + struct drm_device *dev = ring->dev; uint64_t desc; uint64_t lrca = i915_gem_obj_ggtt_offset(ctx_obj); @@ -272,6 +274,13 @@ static uint64_t execlists_ctx_descriptor(struct drm_i915_gem_object *ctx_obj) * signalling between Command Streamers */ /* desc |= GEN8_CTX_FORCE_RESTORE; */ + /* WaEnableForceRestoreInCtxtDescForVCS:skl */ + if (IS_GEN9(dev) && + INTEL_REVID(dev) >= SKL_B0_REVID && + (ring->id == BCS || ring->id == VCS || + ring->id == VECS || ring->id == VCS2)) + desc |= GEN8_CTX_FORCE_RESTORE; + return desc; } @@ -286,13 +295,13 @@ static void execlists_elsp_write(struct intel_engine_cs *ring, /* XXX: You must always write both descriptors in the order below. */ if (ctx_obj1) - temp = execlists_ctx_descriptor(ctx_obj1); + temp = execlists_ctx_descriptor(ring, ctx_obj1); else temp = 0; desc[1] = (u32)(temp >> 32); desc[0] = (u32)temp; - temp = execlists_ctx_descriptor(ctx_obj0); + temp = execlists_ctx_descriptor(ring, ctx_obj0); desc[3] = (u32)(temp >> 32); desc[2] = (u32)temp;