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 01426CCD19E for ; Fri, 17 Oct 2025 02:27:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BAFD910EAEA; Fri, 17 Oct 2025 02:27:22 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="NNhQxEcN"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5433F10EAE9 for ; Fri, 17 Oct 2025 02:27:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1760668037; x=1792204037; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VE6xoBlH2a+VX0sk1Vh42dEf1b3l8+OiLy1m7ON6zSY=; b=NNhQxEcN11gXymkMig9uSRs6BLM2c/tVpLQN5tBZamkh+5RR0u+JGBQg Fqr3OTxoj08mxnEtwi9OOM0kDixb2KjeuK8LRoA1bsBivLRV7nv/rYhu5 qr1uAZAMkTB+DBc1bLdhSpwWdyjJa4orj1SLEMHXcQSh5CyyFuCLiWVNj Ha/LQ+aH6eua8f3ila6+5XF8cAvJpwDYBJefVnYiJ3xb2OBdwFKsVJUi8 uFKKRV71S8azY9xH1hTmrgelBepBo7vvz7EwqD1Pyh+J8+S11nsc05tEq dWHPfLf1b0Mj/C4DVVJsLJNeETkyZXPieVR3eLtuXs6nxXoigfgmFj1vU Q==; X-CSE-ConnectionGUID: 9C7WbJpsQDiosMmubo1OzQ== X-CSE-MsgGUID: gGznHtW/Qi2/aA/ZGtCUAQ== X-IronPort-AV: E=McAfee;i="6800,10657,11584"; a="66739210" X-IronPort-AV: E=Sophos;i="6.19,234,1754982000"; d="scan'208";a="66739210" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2025 19:27:17 -0700 X-CSE-ConnectionGUID: rjc/EOWJTQiimIq9Igch/g== X-CSE-MsgGUID: Eh14tt7ySEG+6Qbft/096Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,234,1754982000"; d="scan'208";a="183089177" Received: from lucas-s2600cw.jf.intel.com ([10.54.55.69]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2025 19:27:17 -0700 From: Lucas De Marchi To: intel-xe@lists.freedesktop.org Cc: Lucas De Marchi , Shekhar Chauhan , Balasubramani Vivekanandan , Matt Roper , Tejas Upadhyay Subject: [PATCH v3 07/24] drm/xe/xe3p: Stop programming RCU_MODE's fixed slice mode setting Date: Thu, 16 Oct 2025 19:26:26 -0700 Message-ID: <20251016-xe3p-v3-7-3dd173a3097a@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251016-xe3p-v3-0-3dd173a3097a@intel.com> References: <20251016-xe3p-v3-0-3dd173a3097a@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.15-dev-bd47d 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" From: Matt Roper Since the hardware load balancing is no longer supported, the programming in RCU_MODE is no longer necessary. Bspec: 60382 Signed-off-by: Matt Roper Reviewed-by: Balasubramani Vivekanandan Signed-off-by: Lucas De Marchi --- drivers/gpu/drm/xe/xe_hw_engine.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_hw_engine.c b/drivers/gpu/drm/xe/xe_hw_engine.c index cba4375525c7e..b08a6d42c8ffc 100644 --- a/drivers/gpu/drm/xe/xe_hw_engine.c +++ b/drivers/gpu/drm/xe/xe_hw_engine.c @@ -350,6 +350,13 @@ static bool xe_hw_engine_match_fixed_cslice_mode(const struct xe_device *xe, const struct xe_gt *gt, const struct xe_hw_engine *hwe) { + /* + * Xe3p no longer supports load balance mode, so "fixed cslice" mode + * is automatic and no RCU_MODE programming is required. + */ + if (GRAPHICS_VER(gt_to_xe(gt)) >= 35) + return false; + return xe_gt_ccs_mode_enabled(gt) && xe_rtp_match_first_render_or_compute(xe, gt, hwe); } -- 2.51.0