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 45650E63F14 for ; Sun, 15 Feb 2026 20:33:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ECDF710E23D; Sun, 15 Feb 2026 20:33:52 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="AVNOeYbH"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5625710E231 for ; Sun, 15 Feb 2026 20:33:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1771187628; x=1802723628; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=WZvaI5sc9l3HskgQ4RzVv42VzV6qhITYc58Yyjs6ToA=; b=AVNOeYbHp9fzBmdFxzmnf5yiRTc0DtYqBh9EXH/rNvUcZYQ9312Ch/98 n952Lm8S37DTM6UF0hZTuYyaRS3ro15eC3c+6eeumXLnto8MJHsoYP8su tkWnfkb3Is5uIyoKpHwfgF/Y57AVIl7CwhavvAlL1NXmrT+iPOTINWPLR dUWC0aZwEewlWQGY6m0cBcCx2lIEMLndRi5++OiAAY/IP9oeHaSiUJmYc tYYlqmWU0EuiJOYfbJm430/Ek8uM+A0yWQUYJjgyYymTOD+6qnDlGP58k F42GQzBuvgNLdSd5hZn2wB4lEb52P/Wucms184Mu1ADRjoTJjvb+zJviM Q==; X-CSE-ConnectionGUID: hwNWWMPYTOeM+xY7ydP10w== X-CSE-MsgGUID: g3UdtZDaTGylR8LNHbtoFQ== X-IronPort-AV: E=McAfee;i="6800,10657,11702"; a="71996393" X-IronPort-AV: E=Sophos;i="6.21,293,1763452800"; d="scan'208";a="71996393" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Feb 2026 12:33:48 -0800 X-CSE-ConnectionGUID: DwoNtE/lS8y3VE7LYxQMng== X-CSE-MsgGUID: fb+4rQufSiGxgu6T4KLjlQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,293,1763452800"; d="scan'208";a="251096612" Received: from shealy-mobl3.ger.corp.intel.com (HELO mwajdecz-hp.clients.intel.com) ([10.245.64.17]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Feb 2026 12:33:48 -0800 From: Michal Wajdeczko To: intel-xe@lists.freedesktop.org Cc: Michal Wajdeczko Subject: [PATCH 7/9] drm/xe/pf: Prefer guard(mutex) when doing fair LMEM provisioning Date: Sun, 15 Feb 2026 21:33:21 +0100 Message-ID: <20260215203323.595-8-michal.wajdeczko@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260215203323.595-1-michal.wajdeczko@intel.com> References: <20260215203323.595-1-michal.wajdeczko@intel.com> 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" We will add more code there and with guard() it will easier to avoid mistakes in unlocking. Signed-off-by: Michal Wajdeczko --- drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c index 43041af81518..1a9f3b85526c 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c @@ -1962,10 +1962,9 @@ int xe_gt_sriov_pf_config_set_fair_lmem(struct xe_gt *gt, unsigned int vfid, if (!xe_device_has_lmtt(gt_to_xe(gt))) return 0; - mutex_lock(xe_gt_sriov_pf_master_mutex(gt)); + guard(mutex)(xe_gt_sriov_pf_master_mutex(gt)); + fair = pf_estimate_fair_lmem(gt, num_vfs); - mutex_unlock(xe_gt_sriov_pf_master_mutex(gt)); - if (!fair) return -ENOSPC; @@ -1975,7 +1974,7 @@ int xe_gt_sriov_pf_config_set_fair_lmem(struct xe_gt *gt, unsigned int vfid, xe_gt_sriov_info(gt, "Using non-profile provisioning (%s %llu vs %llu)\n", "VRAM", fair, profile); - return xe_gt_sriov_pf_config_bulk_set_lmem(gt, vfid, num_vfs, fair); + return xe_gt_sriov_pf_config_bulk_set_lmem_locked(gt, vfid, num_vfs, fair); } /** -- 2.47.1