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 26105C52D71 for ; Thu, 8 Aug 2024 17:41:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E47AE10E7BD; Thu, 8 Aug 2024 17:41:49 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="OJTAFk+p"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) by gabe.freedesktop.org (Postfix) with ESMTPS id 928B410E7C2 for ; Thu, 8 Aug 2024 17:41:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1723138909; x=1754674909; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=S/5fhbrzeUC8Da/23hs+lASXU84vJL3uA/lYurFBZ84=; b=OJTAFk+p66v1gWbJCR8EQDt7C4bHBwC6VlljSKKtvpwwaAMV2a/o5NAw URums2E5Dyz7samDExJxTr85/PwtKCNX3Pb6v9kkm0rCh9QIcg4/9zcMy aIAnSFJLWDwmbbW7Mf0oyGA/yR8qMkoMTIq2f/bDJyLiaiyviLzsw9I+H +3UKrVfk/FxbEnOueQDkmyEDhI8qPTEsVf+0BRQrIA0v2HSaoetoBf5a/ hoL1htYEKjAVZQqazKIncwybrOb8Y5R1gez+Iq+9keWoJ5DD/1n02feIN o7SOcyqIV6fFZYEWysiIn9+0TtHFPvLeV/Wmg0WLtaGU2wWigs1IQN675 w==; X-CSE-ConnectionGUID: z7ApGeW/ToakxLlbs0QQrQ== X-CSE-MsgGUID: QB6mZ2znQ++mcxEpJ8vyKg== X-IronPort-AV: E=McAfee;i="6700,10204,11158"; a="21256058" X-IronPort-AV: E=Sophos;i="6.09,273,1716274800"; d="scan'208";a="21256058" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Aug 2024 10:41:49 -0700 X-CSE-ConnectionGUID: w9LiGv0mQVuXpBCNy7X45w== X-CSE-MsgGUID: u5vZ47+wSseffEnPLCu9LQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,273,1716274800"; d="scan'208";a="57850439" Received: from orsosgc001.jf.intel.com ([10.165.21.138]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Aug 2024 10:41:49 -0700 From: Ashutosh Dixit To: intel-xe@lists.freedesktop.org Cc: Umesh Nerlige Ramappa , Jose Souza , Lionel Landwerlin Subject: [PATCH 0/8] drm/xe/oa: xe_syncs for OA Date: Thu, 8 Aug 2024 10:41:31 -0700 Message-ID: <20240808174139.4027534-1-ashutosh.dixit@intel.com> X-Mailer: git-send-email 2.41.0 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" OA stream configuration submits batches which can be queued behind other (say workload) batches. Also, in some cases, additional delay is needed for an OA configuration to take effect, even after programming batches have completed executing on HW. Mesa has use cases where a single workload is replayed repeatedly on the GPU, each time with a different OA configuration (or metric set), in order to capture different aspects of workload performance. This requires that OA configuration takes effect at precisely the correct input batch and also userspace is correctly informed when a new configuration has been activated (at batch granularity). In the previous implementation this is implemented by introducing a delay in the stream open and reconfiguration ioctl's. This works, except that we introdce a bubble in the userspace pipeline (the pipeline stalls during the delays in calls into these ioctl's). Mesa prefers that such pipeline stalls don't happen. In this series this problem is solved using xe_sync arrays, similar to xe_exec and vm_bind. Here OA re-configuration can be made to wait till input fences signal and OA will signal output fences after a new configuration has been activated. This can of course be done without stalling the userspace pipeline. Test-with: 20240808173632.4027344-1-ashutosh.dixit@intel.com Ashutosh Dixit (8): drm/xe/oa: Separate batch submission from waiting for completion drm/xe/oa: Introduce 'struct xe_oa_fence' drm/xe/oa/uapi: Define and parse OA sync properties drm/xe/oa: Add input fence dependencies drm/xe/oa: Signal output fences drm/xe/oa: Move functions up so they can be reused for config ioctl drm/xe/oa: Add syncs support to OA config ioctl drm/xe/oa: Allow only certain property changes from config ioctl drivers/gpu/drm/xe/xe_oa.c | 632 +++++++++++++++++++++---------- drivers/gpu/drm/xe/xe_oa_types.h | 9 + include/uapi/drm/xe_drm.h | 14 + 3 files changed, 449 insertions(+), 206 deletions(-) -- 2.41.0