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 D7BCBC4345F for ; Thu, 18 Apr 2024 20:35:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8AA5710F5EF; Thu, 18 Apr 2024 20:35:06 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="ZfEeoCF0"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id ED35B113FC4 for ; Thu, 18 Apr 2024 20:35:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1713472501; x=1745008501; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=6tz5tVXdw7bftdQ6U2f95CSzTozNt79Bs3iYooLTBAE=; b=ZfEeoCF05qlOlpIQWol0aqqmpbgwSilXaQ64xNMYxkYsdTN6FnuKTj+L gCtPTuemu8zwk6ckA8F86o9gxqBOICXLnW27NrhcrcfWB74YSVKR06CHS yfSLk+9rr4lFvBMS3Ab+112QGFKGcYzgTi7xAUexQZjUQT69ComgyA75p FrX72ToydqIWpSKU3XM+6KKwXL9K1Cc3YTVZBJo3PQj7BWNpwZ8jE+vDL 2180vTRbDCQZDEEoG4cbnQk35qerML0WBgUGZBHuQy/qlP2xbgz2UYxQa p5tNTkeX3IOfxSc/VXcf/TeqReMFJECKEptU/OjzWCr1Dr1HhYzHxLs6O g==; X-CSE-ConnectionGUID: Ry3njIRFTLGHFY+pVt6+Bw== X-CSE-MsgGUID: fADDhX2RQxyO7ax2AYLNBQ== X-IronPort-AV: E=McAfee;i="6600,9927,11047"; a="11992059" X-IronPort-AV: E=Sophos;i="6.07,213,1708416000"; d="scan'208";a="11992059" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Apr 2024 13:35:01 -0700 X-CSE-ConnectionGUID: V4q4dLqhSqyTH9p01Qonaw== X-CSE-MsgGUID: 5Eq1LGKUScu17942v5O06Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,213,1708416000"; d="scan'208";a="22969867" Received: from mwajdecz-mobl.ger.corp.intel.com ([10.252.62.251]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Apr 2024 13:35:00 -0700 From: Michal Wajdeczko To: intel-xe@lists.freedesktop.org Cc: Michal Wajdeczko Subject: [PATCH 3/3] drm/xe/pf: Expose SR-IOV policy settings over debugfs Date: Thu, 18 Apr 2024 22:34:42 +0200 Message-Id: <20240418203442.226-4-michal.wajdeczko@intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20240418203442.226-1-michal.wajdeczko@intel.com> References: <20240418203442.226-1-michal.wajdeczko@intel.com> 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" We already have functions to configure SR-IOV policies. Allow to tweak those policy settings over debugfs. Signed-off-by: Michal Wajdeczko --- drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c | 50 +++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c index 8909bb950a8b..3a83af7aa039 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c @@ -17,6 +17,7 @@ #include "xe_gt_sriov_pf_control.h" #include "xe_gt_sriov_pf_debugfs.h" #include "xe_gt_sriov_pf_helpers.h" +#include "xe_gt_sriov_pf_policy.h" #include "xe_pm.h" /* @@ -76,6 +77,54 @@ static const struct drm_info_list pf_info[] = { }, }; +/* + * /sys/kernel/debug/dri/0/ + * ├── gt0 + * │   ├── pf + * │   │   ├── reset_engine + * │   │   ├── sample_period + * │   │   ├── sched_if_idle + */ + +#define DEFINE_SRIOV_GT_POLICY_DEBUGFS_ATTRIBUTE(POLICY, TYPE, FORMAT) \ + \ +static int POLICY##_set(void *data, u64 val) \ +{ \ + struct xe_gt *gt = extract_gt(data); \ + struct xe_device *xe = gt_to_xe(gt); \ + int err; \ + \ + xe_pm_runtime_get(xe); \ + err = xe_gt_sriov_pf_policy_set_##POLICY(gt, val); \ + xe_pm_runtime_put(xe); \ + \ + return err; \ +} \ + \ +static int POLICY##_get(void *data, u64 *val) \ +{ \ + struct xe_gt *gt = extract_gt(data); \ + \ + *val = xe_gt_sriov_pf_policy_get_##POLICY(gt); \ + return 0; \ +} \ + \ +DEFINE_DEBUGFS_ATTRIBUTE(POLICY##_fops, POLICY##_get, POLICY##_set, FORMAT) + +DEFINE_SRIOV_GT_POLICY_DEBUGFS_ATTRIBUTE(reset_engine, bool, "%llu\n"); +DEFINE_SRIOV_GT_POLICY_DEBUGFS_ATTRIBUTE(sched_if_idle, bool, "%llu\n"); +DEFINE_SRIOV_GT_POLICY_DEBUGFS_ATTRIBUTE(sample_period, u32, "%llu\n"); + +static void pf_add_policy_attrs(struct xe_gt *gt, struct dentry *parent) +{ + xe_gt_assert(gt, gt == extract_gt(parent)); + xe_gt_assert(gt, PFID == extract_vfid(parent)); + + debugfs_create_file_unsafe("reset_engine", 0644, parent, parent, &reset_engine_fops); + debugfs_create_file_unsafe("sched_if_idle", 0644, parent, parent, &sched_if_idle_fops); + debugfs_create_file_unsafe("sample_period_ms", 0644, parent, parent, &sample_period_fops); +} + /* * /sys/kernel/debug/dri/0/ * ├── gt0 @@ -261,6 +310,7 @@ void xe_gt_sriov_pf_debugfs_register(struct xe_gt *gt, struct dentry *root) pfdentry->d_inode->i_private = gt; drm_debugfs_create_files(pf_info, ARRAY_SIZE(pf_info), pfdentry, minor); + pf_add_policy_attrs(gt, pfdentry); pf_add_config_attrs(gt, pfdentry, PFID); for (n = 1; n <= totalvfs; n++) { -- 2.43.0