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 573C0CF648B for ; Wed, 19 Nov 2025 22:41:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CACD310E271; Wed, 19 Nov 2025 22:41:13 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="NQGkfXL6"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id A0FF710E26E; Wed, 19 Nov 2025 22:41:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1763592073; x=1795128073; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=GusNbUkncxpVTWt/dG1hq9WzaZuHpbMMxeGKs65UkZc=; b=NQGkfXL6uLqlPh92Mj5yabJIGAsarRLqqBi4FoGn3prJEKAej0GVhO1V LFoCdAM5IBT24kCmW8HOWgtvpLgs1B+1K3GxvQqQMUSBXrENHdtPmgb7X qnpbUXGbfeNmlWbm9P+bHLkZ7IoCV1fAkBY2G4Q/5lxGML6KOH+Ee04w5 cddkHzJ5BqI7Rk36dQdBjsm8m0TXFykC6j5qsOO6M3P1Xbx2TwKZfaaig 48ctFRL+cM20xvEWgWWYKGnYdf17JaS+rcPt0FnR4+aGSz8HRx1D+u6lG 3FSeBuVZJ6PxmE9lnr7b/abKIg/1kaNNNHEOYH4nL5oZHrlQKJfjAXY2D g==; X-CSE-ConnectionGUID: NkHmEVx7RkSeNfugVKa4kQ== X-CSE-MsgGUID: yE2I1GjeQZGS901y7OyyhQ== X-IronPort-AV: E=McAfee;i="6800,10657,11618"; a="76755377" X-IronPort-AV: E=Sophos;i="6.19,316,1754982000"; d="scan'208";a="76755377" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2025 14:41:12 -0800 X-CSE-ConnectionGUID: Q0G5UGfYRb+uew8ihTqBJg== X-CSE-MsgGUID: IlqKy46rT+qcL9XzYPNyIw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,316,1754982000"; d="scan'208";a="228504131" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2025 14:41:11 -0800 From: Matthew Brost To: intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: niranjana.vishwanathapura@intel.com, umesh.nerlige.ramappa@intel.com, christian.koenig@amd.com, pstanner@redhat.com, dakr@kernel.org Subject: [PATCH v4 1/8] drm/sched: Add several job helpers to avoid drivers touching scheduler state Date: Wed, 19 Nov 2025 14:40:59 -0800 Message-Id: <20251119224106.3733883-2-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251119224106.3733883-1-matthew.brost@intel.com> References: <20251119224106.3733883-1-matthew.brost@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" Add helpers to see if scheduler is stopped and a jobs signaled state. Expected to be used driver side on recovery and debug flows. v4: - Reorder patch to first in series (Niranjana) - Also check parent fence for signaling (Niranjana) Signed-off-by: Matthew Brost --- drivers/gpu/drm/scheduler/sched_main.c | 4 ++-- include/drm/gpu_scheduler.h | 32 ++++++++++++++++++++++++++ 2 files changed, 34 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 1d4f1b822e7b..cf40c18ab433 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -344,7 +344,7 @@ drm_sched_rq_select_entity_fifo(struct drm_gpu_scheduler *sched, */ static void drm_sched_run_job_queue(struct drm_gpu_scheduler *sched) { - if (!READ_ONCE(sched->pause_submit)) + if (!drm_sched_is_stopped(sched)) queue_work(sched->submit_wq, &sched->work_run_job); } @@ -354,7 +354,7 @@ static void drm_sched_run_job_queue(struct drm_gpu_scheduler *sched) */ static void drm_sched_run_free_queue(struct drm_gpu_scheduler *sched) { - if (!READ_ONCE(sched->pause_submit)) + if (!drm_sched_is_stopped(sched)) queue_work(sched->submit_wq, &sched->work_free_job); } diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h index fb88301b3c45..385bf34e76fe 100644 --- a/include/drm/gpu_scheduler.h +++ b/include/drm/gpu_scheduler.h @@ -698,4 +698,36 @@ void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, struct drm_gpu_scheduler **sched_list, unsigned int num_sched_list); +/* Inlines */ + +/** + * drm_sched_is_stopped() - DRM is stopped + * @sched: DRM scheduler + * + * Return: True if sched is stopped, False otherwise + */ +static inline bool drm_sched_is_stopped(struct drm_gpu_scheduler *sched) +{ + return READ_ONCE(sched->pause_submit); +} + +/** + * drm_sched_job_is_signaled() - DRM scheduler job is signaled + * @job: DRM scheduler job + * + * Determine if DRM scheduler job is signaled. DRM scheduler should be stopped + * to obtain a stable snapshot of state. Both parent fence (hardware fence) and + * finished fence (software fence) are check to determine signaling state. + * + * Return: True if job is signaled, False otherwise + */ +static inline bool drm_sched_job_is_signaled(struct drm_sched_job *job) +{ + struct drm_sched_fence *s_fence = job->s_fence; + + WARN_ON(!drm_sched_is_stopped(job->sched)); + return (s_fence->parent && dma_fence_is_signaled(s_fence->parent)) || + dma_fence_is_signaled(&s_fence->finished); +} + #endif -- 2.34.1