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 16569C88CB2 for ; Mon, 12 Jun 2023 17:14:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DEAAD10E2B8; Mon, 12 Jun 2023 17:14:43 +0000 (UTC) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3A5DA10E2B8 for ; Mon, 12 Jun 2023 17:14:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686590082; x=1718126082; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=qENs9McVbsuxs13j8EQnzBY8+/wNLmswlG/6rCjFhE4=; b=efjfWrZqOiEVfhS0h4ot5N9VfF7iRCm1uz6nydAaSwu8s6drEsrWMxA2 AkTyEoZKxoNIn9RQB6RKhYAHNBp2aEaa9QhhKD9LDTBcexHUfqLELpw0K Fq7RuT3EZ6k4kuVRnxdDfLHw8QXWX+uE4hEpOY8QqmFZcfrPpgJA9ztKi rZHujo/QtNWBnJCS9b6WuVnzdmvR530JvSItVAfF/V2Kd1C5s+QPIjleH lJSDqcEaceOrI4KJWISUGeYzK1x3NAzaY8Y6Fl2xATM/SVNQQwMXJRK5Y ztdOH3prHbaf04NMJDJlvxvPuMlwh32x/FMoY60FcScNryTKs2xcuA6kB Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10739"; a="342792744" X-IronPort-AV: E=Sophos;i="6.00,236,1681196400"; d="scan'208";a="342792744" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jun 2023 10:14:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10739"; a="688715168" X-IronPort-AV: E=Sophos;i="6.00,236,1681196400"; d="scan'208";a="688715168" Received: from mgutier2-mobl1.ger.corp.intel.com (HELO mwauld-desk1.intel.com) ([10.252.22.12]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jun 2023 10:14:40 -0700 From: Matthew Auld To: intel-xe@lists.freedesktop.org Date: Mon, 12 Jun 2023 18:12:16 +0100 Message-Id: <20230612171225.88689-4-matthew.auld@intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230612171225.88689-1-matthew.auld@intel.com> References: <20230612171225.88689-1-matthew.auld@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Intel-xe] [PATCH v11 03/12] drm/xe/debugfs: grab mem_access around forcewake 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: , Cc: Rodrigo Vivi Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" We need keep the device awake when performing any kind of mmio operation. Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/279 Signed-off-by: Matthew Auld Cc: Rodrigo Vivi Cc: Thomas Hellström Reviewed-by: Rodrigo Vivi --- drivers/gpu/drm/xe/xe_debugfs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_debugfs.c b/drivers/gpu/drm/xe/xe_debugfs.c index 7827a785b020..047341d5689a 100644 --- a/drivers/gpu/drm/xe/xe_debugfs.c +++ b/drivers/gpu/drm/xe/xe_debugfs.c @@ -70,6 +70,8 @@ static int forcewake_open(struct inode *inode, struct file *file) struct xe_gt *gt; u8 id; + xe_device_mem_access_get(xe); + for_each_gt(gt, xe, id) XE_WARN_ON(xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL)); @@ -85,6 +87,8 @@ static int forcewake_release(struct inode *inode, struct file *file) for_each_gt(gt, xe, id) XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL)); + xe_device_mem_access_put(xe); + return 0; } -- 2.40.1