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 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 07323CC6B15 for ; Tue, 13 Oct 2026 20:48:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A881910F9BF; Tue, 13 Oct 2026 20:47:58 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id 135E610F9A3; Tue, 13 Oct 2026 20:47:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1791924472; x=1823460472; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+cihov+RWzaPt5FjuSOQvdaOhI4zDeOZ7N0PHSlj2dk=; b=ahZeNzeWq+1QAx1+TvNZY+/iATkx64KAJehmffEG+kqC4rfhpajLzoxx DlvHQ2e6qSfe2kuoZfJwBLBRYWhLxgifSkrbgHumVoo6hbULJMTuYknuu 0vsmZA3xH/nf5TRziGDr7mSo9JiEIZz6UAY1AiDXYTNkr+XQvzEZl03sV 6GsU9pynaYc4eb0V+X3EJwnmOuuYlDKEwdo3Qo4HCgq8fwKSSLVJPjJzh OX8o0cdBix842QQaGnyBiHXuhfCbLJ8sQdu3wQERQhalJcQNAQC7d97Ms hwQJJRdfNER6iRoVGSAJ5z6sQ/B25HkPCBCMgCSF21wIh2YAn1dNVe5Rv Q==; X-CSE-ConnectionGUID: PnZ5dnBPRMGrE9Q9ehc0Hw== X-CSE-MsgGUID: nPgoSxFCT8WD6GFFGuD7vw== X-IronPort-AV: E=McAfee;i="6800,10657,11934"; a="539309" X-IronPort-AV: E=Sophos;i="6.27,156,1787036400"; d="scan'208";a="539309" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Oct 2026 13:47:51 -0700 X-CSE-ConnectionGUID: u4x/SopGQwiAEk5uuCZd1A== X-CSE-MsgGUID: Gzm4ZbeyRdq/CJ14UyRpqw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,156,1787036400"; d="scan'208";a="1189056" Received: from dev-417.igk.intel.com ([10.91.214.181]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Oct 2026 13:47:50 -0700 From: =?UTF-8?q?Micha=C5=82=20Grzelak?= To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: =?UTF-8?q?Micha=C5=82=20Grzelak?= , Chaitanya Kumar Borah , stable@vger.kernel.org Subject: [PATCH v4 4/5] drm/i915/3dlut: disable 3D LUT if unsupported Date: Tue, 13 Oct 2026 22:47:03 +0200 Message-ID: <20261013204705.1574475-5-michal.grzelak@linux.intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20261013204705.1574475-1-michal.grzelak@linux.intel.com> References: <20261013204705.1574475-1-michal.grzelak@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" XE2LPD_DE_CAP_3DLUT_MASK is defined but never used. Check DE_CAP with the mask whether 3D LUT is disabled for LNL+. Reset has_3dlut if that is the case. Bspec: 71161 Fixes: 65db7a1f9cf7 ("drm/i915/color: Add 3D LUT to color pipeline") Cc: Chaitanya Kumar Borah Cc: # v6.19+ Signed-off-by: Michał Grzelak --- drivers/gpu/drm/i915/display/intel_display_device.c | 4 ++++ drivers/gpu/drm/i915/display/intel_display_regs.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c index a2bea5ac59cf..d4e52e627b34 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.c +++ b/drivers/gpu/drm/i915/display/intel_display_device.c @@ -1940,6 +1940,10 @@ static void __intel_display_device_info_runtime_init(struct intel_display *displ if (DISPLAY_VER(display) >= 20) { u32 cap = intel_de_read(display, XE2LPD_DE_CAP); + if (REG_FIELD_GET(XE2LPD_DE_CAP_3DLUT_MASK, cap) == + XE2LPD_DE_CAP_3DLUT_REMOVED) + display_runtime->has_3dlut = 0; + if (REG_FIELD_GET(XE2LPD_DE_CAP_DSC_MASK, cap) == XE2LPD_DE_CAP_DSC_REMOVED) display_runtime->has_dsc = 0; diff --git a/drivers/gpu/drm/i915/display/intel_display_regs.h b/drivers/gpu/drm/i915/display/intel_display_regs.h index 0b3991bc3aef..d3546609e3ae 100644 --- a/drivers/gpu/drm/i915/display/intel_display_regs.h +++ b/drivers/gpu/drm/i915/display/intel_display_regs.h @@ -1773,6 +1773,7 @@ #define XE2LPD_DE_CAP _MMIO(0x41100) #define XE2LPD_DE_CAP_3DLUT_MASK REG_GENMASK(31, 30) +#define XE2LPD_DE_CAP_3DLUT_REMOVED 1 #define XE2LPD_DE_CAP_DSC_MASK REG_GENMASK(29, 28) #define XE2LPD_DE_CAP_DSC_REMOVED 1 #define XE2LPD_DE_CAP_SCALER_MASK REG_GENMASK(27, 26) -- 2.45.2