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 EF7E6C43458 for ; Fri, 10 Jul 2026 16:35:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9339B10E1EE; Fri, 10 Jul 2026 16:35:35 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="UiFGzp98"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 851A010E1EE for ; Fri, 10 Jul 2026 16:35:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1783701335; x=1815237335; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=D8A6HgqmZsCdUOpXXLrOUwJ2PqQoEO62p4xmnaVa0Gg=; b=UiFGzp98n6ZVc1d0Ao1iEPfZRAyGDvxg6c9zj+VrSqcz4sFHhPDb4EBG zwkB4pFFnGIBI+65tD2zkF+dcCaqe2stkAd7TUhI+EbQMbkr/vwr6JtaG N0QmU5P2ysMfMbfyWs6B+h8Y+ner0CxQP1JveGJecBv5HMEwTYbk1rROe M84oKw0sbFk+GXOwYDMloFjGqOmejOp5221iKS2uxhwQDMedmjwOAORdN jtxtE3MYlO8CvvaOROhLi00uGg41uueOWEJdlZORZWTKzogNi0OVdFytf tEpESXPXW5zOMfw75cO8ZiNzG/HP7fqNgYszZ/WXOQ0vLhg1q5Wx015KU A==; X-CSE-ConnectionGUID: bY1MMBxGTKmwpXAuRN182g== X-CSE-MsgGUID: dCTHHpCrS9GM+bj5uB5H6g== X-IronPort-AV: E=McAfee;i="6800,10657,11841"; a="101827248" X-IronPort-AV: E=Sophos;i="6.25,154,1779174000"; d="scan'208";a="101827248" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jul 2026 09:35:34 -0700 X-CSE-ConnectionGUID: e8z7UjiaShOgaiWvlj/YRA== X-CSE-MsgGUID: Dc2mH0DyThOQkX2LuRPXpg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,154,1779174000"; d="scan'208";a="258526700" Received: from osgc-sh-dragon.sh.intel.com ([10.239.81.44]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jul 2026 09:35:33 -0700 From: Jonathan Cavitt To: intel-xe@lists.freedesktop.org Cc: alex.zuo@intel.com, jonathan.cavitt@intel.com, matthew.d.roper@intel.com Subject: [PATCH] drm/xe/pci: Disable Multi-LRC on single VCS/VECS platforms Date: Sat, 11 Jul 2026 00:35:29 +0800 Message-ID: <20260710163529.1820969-1-jonathan.cavitt@intel.com> X-Mailer: git-send-email 2.53.0 MIME-Version: 1.0 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" Recent platforms like PTL, NVL-S, and NVL-P have only had a single video decode engine instance and a single video encode engine instance. As Multi LRCA requires at least two engines of the same type, this means these platforms simply haven't been capable of multi-LRC. Do not expose the uapi for this unused/unsupported feature on these platforms. Signed-off-by: Jonathan Cavitt Cc: Matt Roper --- drivers/gpu/drm/xe/xe_pci.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c index cd0e42dd4992..7ff4f3e1f34d 100644 --- a/drivers/gpu/drm/xe/xe_pci.c +++ b/drivers/gpu/drm/xe/xe_pci.c @@ -443,7 +443,6 @@ static const struct xe_device_desc ptl_desc = { .has_pre_prod_wa = 1, .has_pxp = true, .max_gt_per_tile = 2, - MULTI_LRC_MASK, .needs_scratch = true, .needs_shared_vf_gt_wq = true, .va_bits = 48, @@ -458,7 +457,6 @@ static const struct xe_device_desc nvls_desc = { .has_pre_prod_wa = 1, .has_sriov = true, .max_gt_per_tile = 2, - MULTI_LRC_MASK, .require_force_probe = true, .va_bits = 48, .vm_max_level = 4, @@ -498,7 +496,6 @@ static const struct xe_device_desc nvlp_desc = { .has_pre_prod_wa = true, .has_sriov = true, .max_gt_per_tile = 2, - MULTI_LRC_MASK, .require_force_probe = true, .va_bits = 48, .vm_max_level = 4, -- 2.53.0