From patchwork Wed Mar 1 01:26:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Andi Shyti X-Patchwork-Id: 13155412 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 EF09DC64EC7 for ; Wed, 1 Mar 2023 01:27:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A942310E09B; Wed, 1 Mar 2023 01:27:09 +0000 (UTC) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id AD6F910E08A; Wed, 1 Mar 2023 01:27:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1677634027; x=1709170027; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=8f2vYl0+eg/H+sWrVHL+DLWF0fdYPkbzcqHNiBy2HyA=; b=H7x7R6MqIlae5vHn9mBuIh2G6Ht816IbR+3JaNg2sYzRqXcHt8cuxtl9 hJqV2mFfWzk4ZFS9O+yhFhGmb6etWNmV0wv+aWeCLvgg6vtNEp2qQLn+i YpWJSBeU0a3rHoc9y2jPbBb3ZzjQM3PyG2XmefjgF0ZIV+oWpaFXBlQ+5 3tRx+CxyFJqfuMfFQrap5Lt3UKAJJc6cKIA3znW/s9Ghv6sooyEn1Xvfm WAS9g/ocEbvWRNPZJoLgvLipJOLQ+9OoET6cIuLXMQN20NBnM2eKOiDqe cz2zm+vFMGWiUu+1VFK5EoiZPUhHUlJMh/cmhC8yPK7+6awoK1hGXvgbr Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10635"; a="334328464" X-IronPort-AV: E=Sophos;i="5.98,223,1673942400"; d="scan'208";a="334328464" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2023 17:27:07 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10635"; a="817331459" X-IronPort-AV: E=Sophos;i="5.98,223,1673942400"; d="scan'208";a="817331459" Received: from unknown (HELO intel.com) ([10.252.57.78]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2023 17:27:03 -0800 From: Andi Shyti To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Wed, 1 Mar 2023 02:26:49 +0100 Message-Id: <20230301012649.2046879-1-andi.shyti@linux.intel.com> X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH] drm/i915/gt: Create per-tile debugfs files X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To support multi-GT configurations, we need to generate independent debug files for each GT. To achieve this create a separate directory for each GT under the debugfs directory. For instance, in a system with four tiles, the debugfs structure would look like this: /sys/kernel/debug/dri └── 0    ├── gt0    │   ├── drpc    │   ├── engines    │   ├── forcewake    │   ├── frequency    │   └── rps_boost    ├── gt1    │   ├── drpc    │   ├── engines    │   ├── forcewake    │   ├── frequency    │   └── rps_boost    ├── gt2    │   ├── drpc    │   ├── engines    │   ├── forcewake    │   ├── frequency    │   └── rps_boost    └─- gt3    :   ├── drpc    :   ├── engines    :   ├── forcewake       ├── frequency       └── rps_boost Signed-off-by: Andi Shyti Cc: Tvrtko Ursulin --- drivers/gpu/drm/i915/gt/intel_gt_debugfs.c | 4 +++- drivers/gpu/drm/i915/gt/uc/intel_guc.h | 2 ++ drivers/gpu/drm/i915/gt/uc/intel_guc_log.c | 5 ++++- drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c | 2 ++ 4 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c index 5fc2df01aa0d..4dc23b8d3aa2 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c @@ -83,11 +83,13 @@ static void gt_debugfs_register(struct intel_gt *gt, struct dentry *root) void intel_gt_debugfs_register(struct intel_gt *gt) { struct dentry *root; + char gtname[4]; if (!gt->i915->drm.primary->debugfs_root) return; - root = debugfs_create_dir("gt", gt->i915->drm.primary->debugfs_root); + snprintf(gtname, sizeof(gtname), "gt%u", gt->info.id); + root = debugfs_create_dir(gtname, gt->i915->drm.primary->debugfs_root); if (IS_ERR(root)) return; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index bb4dfe707a7d..e46aac1a41e6 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -42,6 +42,8 @@ struct intel_guc { /** @capture: the error-state-capture module's data and objects */ struct intel_guc_state_capture *capture; + struct dentry *dbgfs_node; + /** @sched_engine: Global engine used to submit requests to GuC */ struct i915_sched_engine *sched_engine; /** diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c index 195db8c9d420..55bc8b55fbc0 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c @@ -542,8 +542,11 @@ static int guc_log_relay_create(struct intel_guc_log *log) */ n_subbufs = 8; + if (!guc->dbgfs_node) + return -ENOENT; + guc_log_relay_chan = relay_open("guc_log", - i915->drm.primary->debugfs_root, + guc->dbgfs_node, subbuf_size, n_subbufs, &relay_callbacks, i915); if (!guc_log_relay_chan) { diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c index 284d6fbc2d08..2f93cc4e408a 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c @@ -54,6 +54,8 @@ void intel_uc_debugfs_register(struct intel_uc *uc, struct dentry *gt_root) if (IS_ERR(root)) return; + uc->guc.dbgfs_node = root; + intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), uc); intel_guc_debugfs_register(&uc->guc, root);