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 93704C02193 for ; Tue, 4 Feb 2025 18:05:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5A3AF10E370; Tue, 4 Feb 2025 18:05:33 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Q/VWZpUE"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9455B10E370 for ; Tue, 4 Feb 2025 18:05:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1738692331; x=1770228331; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=rn7i0b1NdFRazTzswPruRTC0U7mtOpE8Ju01LI/Oy7U=; b=Q/VWZpUE7y5bHa5wX3lG7g/GA+YG/5G7C6hgpW7Cy0ZTGt3J0qHBGbtD 5b+OScVUOFLY25Wue1RC8rgdR8NoH6gOwzLvA4kj8GE3yRkWWBu0pWbqT DnK7YNswdlYYCQSMNN3cKNbu4s8S7oT05ctsLimXXY7w/JAZi49Bc02av M1MI884JLCtT/f+j44iM6QBEFItqnSJJfDamEHJJXsziCzPCIvCPeoICU 4cEg74u6KBHFdQZp2lueXTnhl1RzH+D4+V3cbpA/XLZIDnAtjlOU8jVBa APth6cFbWt0Kx0iqnSfT0MX3ofRBt/lqZ9i5D1U7VIiu/mjQ18OYnJKUK A==; X-CSE-ConnectionGUID: 0v1wQ/6pR9SpVZcErtr0TQ== X-CSE-MsgGUID: KvQzwcnRRfGhAy/Mj5ggyw== X-IronPort-AV: E=McAfee;i="6700,10204,11314"; a="50651322" X-IronPort-AV: E=Sophos;i="6.12,310,1728975600"; d="scan'208";a="50651322" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2025 10:05:31 -0800 X-CSE-ConnectionGUID: tPSS2DSDTPyi6bM8/SoR4w== X-CSE-MsgGUID: UvM5IUrQRFujOJ1lzFqAdw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,259,1732608000"; d="scan'208";a="115701585" Received: from mbernato-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.83.184]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2025 10:05:29 -0800 From: Marcin Bernatowicz To: intel-xe@lists.freedesktop.org Cc: Marcin Bernatowicz , Lucas De Marchi , Michal Wajdeczko , =?UTF-8?q?Micha=C5=82=20Winiarski?= , Umesh Nerlige Ramappa Subject: [PATCH 0/3] VF: Avoid reading inaccessible RING_TIMESTAMP Date: Tue, 4 Feb 2025 19:05:19 +0100 Message-Id: <20250204180522.2327214-1-marcin.bernatowicz@linux.intel.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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" RING_TIMESTAMP registers are not available for VF (Virtual Function) drivers. Return -EOPNOTSUPP when the DRM_XE_DEVICE_QUERY_ENGINE_CYCLES ioctl is invoked on a VF device. Modify xe_hw_engine_read_timestamp() to return an error code instead of a u64 timestamp. Return -EOPNOTSUPP when called from Virtual Function (VF) mode to avoid reading the inaccessible RING_TIMESTAMP register. Ensure show_run_ticks() only prints drm-total-cycles when timestamp retrieval succeeds. Cc: Lucas De Marchi Cc: Michal Wajdeczko Cc: Michał Winiarski Cc: Umesh Nerlige Ramappa Marcin Bernatowicz (3): drm/xe/vf: Return EOPNOTSUPP for DRM_XE_DEVICE_QUERY_ENGINE_CYCLES if VF drm/xe/vf: Return error code from xe_hw_engine_read_timestamp() drm/xe/client: Skip drm-total-cycles if unable to read timestamp drivers/gpu/drm/xe/xe_drm_client.c | 9 ++++++--- drivers/gpu/drm/xe/xe_hw_engine.c | 10 ++++++++-- drivers/gpu/drm/xe/xe_hw_engine.h | 2 +- drivers/gpu/drm/xe/xe_query.c | 3 +++ 4 files changed, 18 insertions(+), 6 deletions(-) -- 2.31.1