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 C384CC3ABC9 for ; Fri, 16 May 2025 18:17:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8A18E10EB66; Fri, 16 May 2025 18:17:04 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="RpxBKq5x"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1B50F10EB66 for ; Fri, 16 May 2025 18:17:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1747419423; x=1778955423; h=date:message-id:from:to:cc:subject:in-reply-to: references:mime-version; bh=x6yfSsbNzsPHU6EySUd9URuMNQnPIbmt91ZGlli2kAg=; b=RpxBKq5xQOdtvUKDDKsDqdH1jgiLMg0juwGD8RD/Q2OEw/kjeOIsEC0v AMS27JD1kKmO7WuUrpEtFkz1R+QLx4W12oXCnhrRK/5Zw6U8K0agex1As N2Baow80TlebQJTPzMiIifyDoqnHJDoN4gUqAtcWWpL7ATrqiovP4C/M4 H+TXmB7LoF8kydbBznify7qZVNSXYcQRa01yMRUmMC1h9wqF7KpQKfY8H yMwgr1gty/FgW6N/PenBNh1Jhxo9EJdPPYZquZL2gbGc2h6DcOLGiocGQ SgV8kF6uIXlQJOwdFzfPslX6IfZCMtIwM7LyVA8CsvsyFoRUbfq4JDXhS Q==; X-CSE-ConnectionGUID: Sdi2vjMbTm+XkKdWsMsxSQ== X-CSE-MsgGUID: +oZPp+GPRUuVbydJ6gBJhw== X-IronPort-AV: E=McAfee;i="6700,10204,11435"; a="49327504" X-IronPort-AV: E=Sophos;i="6.15,294,1739865600"; d="scan'208";a="49327504" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 May 2025 11:17:03 -0700 X-CSE-ConnectionGUID: UAyER4oQSV2GPzyeHJnHmw== X-CSE-MsgGUID: 14i5jkw4RHmO2TEQNMxcDQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,294,1739865600"; d="scan'208";a="138804950" Received: from hhitiham-mobl.amr.corp.intel.com (HELO adixit-MOBL3.intel.com) ([10.125.89.146]) by fmviesa007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 May 2025 11:17:03 -0700 Date: Fri, 16 May 2025 11:17:01 -0700 Message-ID: <87plg8774y.wl-ashutosh.dixit@intel.com> From: "Dixit, Ashutosh" To: intel-xe@lists.freedesktop.org Cc: Umesh Nerlige Ramappa Subject: Re: [PATCH] drm/xe/oa: Expose media OA units In-Reply-To: <20250516180913.2072293-1-ashutosh.dixit@intel.com> References: <20250516180913.2072293-1-ashutosh.dixit@intel.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?ISO-8859-4?Q?Goj=F2?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/29.4 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII 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" On Fri, 16 May 2025 11:09:13 -0700, Ashutosh Dixit wrote: > > + /* > + * XE_OAM_UNIT_SAG has only GSCCS attached to it, but only on some platforms. Also > + * GSCCS cannot be used to submit batches to program the OAM unit. Therefore we don't > + * assign an OA unit to GSCCS. This means that XE_OAM_UNIT_SAG is exposed as an OA > + * unit without attached engines. However OA streams can still be opened on it. > + */ Note that with this patch, OA streams can only be opened on the SCMI OAM units, not on the OAM-SAG unit. To enable opening streams on OAM-SAG more changes are needed (since OAM-SAG doesn't have an engine attached to it). This work will be done via follow up patches. Thanks. -- Ashutosh