From patchwork Tue Oct 21 10:52:43 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dheeraj Jamwal X-Patchwork-Id: 5118721 Return-Path: X-Original-To: patchwork-ltsi-dev@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 B2F93C11AC for ; Tue, 21 Oct 2014 11:43:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D04EF2010F for ; Tue, 21 Oct 2014 11:43:21 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E41E4200E8 for ; Tue, 21 Oct 2014 11:43:20 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id B6643B4B; Tue, 21 Oct 2014 11:08:02 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 71932C66 for ; Tue, 21 Oct 2014 11:08:01 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 061E3201F0 for ; Tue, 21 Oct 2014 11:08:00 +0000 (UTC) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP; 21 Oct 2014 04:07:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,761,1406617200"; d="scan'208";a="617797244" Received: from ubuntu-desktop.png.intel.com ([10.221.122.25]) by fmsmga002.fm.intel.com with ESMTP; 21 Oct 2014 04:07:58 -0700 From: Dheeraj Jamwal To: ltsi-dev@lists.linuxfoundation.org Date: Tue, 21 Oct 2014 18:52:43 +0800 Message-Id: <1413889294-31328-564-git-send-email-dheerajx.s.jamwal@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> References: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> X-Spam-Status: No, score=-5.6 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 Subject: [LTSI-dev] [PATCH 0563/1094] drm/i915: don't try DP_LINK_BW_5_4 on HSW ULX X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Paulo Zanoni Because the docs say ULX doesn't support it on HSW. Reviewed-by: Dave Airlie Signed-off-by: Paulo Zanoni Signed-off-by: Jani Nikula (cherry picked from commit 9bbfd20abe5025adbb0ac75160bd2e41158a9e83) Signed-off-by: Dheeraj Jamwal --- drivers/gpu/drm/i915/i915_drv.h | 3 +++ drivers/gpu/drm/i915/intel_dp.c | 3 ++- include/drm/i915_pciids.h | 4 ++-- 3 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index ec82f6b..108e1ec 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1954,6 +1954,9 @@ struct drm_i915_cmd_table { #define IS_ULT(dev) (IS_HSW_ULT(dev) || IS_BDW_ULT(dev)) #define IS_HSW_GT3(dev) (IS_HASWELL(dev) && \ ((dev)->pdev->device & 0x00F0) == 0x0020) +/* ULX machines are also considered ULT. */ +#define IS_HSW_ULX(dev) ((dev)->pdev->device == 0x0A0E || \ + (dev)->pdev->device == 0x0A1E) #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary) /* diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index dfa8528..5ca68aa9 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -105,7 +105,8 @@ intel_dp_max_link_bw(struct intel_dp *intel_dp) case DP_LINK_BW_2_7: break; case DP_LINK_BW_5_4: /* 1.2 capable displays may advertise higher bw */ - if ((IS_HASWELL(dev) || INTEL_INFO(dev)->gen >= 8) && + if (((IS_HASWELL(dev) && !IS_HSW_ULX(dev)) || + INTEL_INFO(dev)->gen >= 8) && intel_dp->dpcd[DP_DPCD_REV] >= 0x12) max_link_bw = DP_LINK_BW_5_4; else diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h index 940ece4..012d58f 100644 --- a/include/drm/i915_pciids.h +++ b/include/drm/i915_pciids.h @@ -191,8 +191,8 @@ INTEL_VGA_DEVICE(0x0A06, info), /* ULT GT1 mobile */ \ INTEL_VGA_DEVICE(0x0A16, info), /* ULT GT2 mobile */ \ INTEL_VGA_DEVICE(0x0A26, info), /* ULT GT3 mobile */ \ - INTEL_VGA_DEVICE(0x0A0E, info), /* ULT GT1 reserved */ \ - INTEL_VGA_DEVICE(0x0A1E, info), /* ULT GT2 reserved */ \ + INTEL_VGA_DEVICE(0x0A0E, info), /* ULX GT1 mobile */ \ + INTEL_VGA_DEVICE(0x0A1E, info), /* ULX GT2 mobile */ \ INTEL_VGA_DEVICE(0x0A2E, info), /* ULT GT3 reserved */ \ INTEL_VGA_DEVICE(0x0D06, info), /* CRW GT1 mobile */ \ INTEL_VGA_DEVICE(0x0D16, info), /* CRW GT2 mobile */ \