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 D0DBDD111AA for ; Wed, 26 Nov 2025 21:48:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8913310E712; Wed, 26 Nov 2025 21:48:07 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="C4VceDm4"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) by gabe.freedesktop.org (Postfix) with ESMTPS id B49CD10E6ED; Wed, 26 Nov 2025 21:47:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1764193674; x=1795729674; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=KGVjeCRSxqAJp6ZHvk+uIdlOjameX8llKpK7bxqvdJw=; b=C4VceDm4CqmfLx15R2bmvrblAugiqErgu2ScJveqs+1llUSvs6Ijz4/V zjnlJxhiPukWXOAn+59sYdnmaaR8hoL9fQhKWLma6GAtmSjqYsdL/xDCu 8FYZbdxH1t7er00UL/nzY3jW0OuKR/WsT2Zm7eTq4qbM9YsunQcQo0i2v pEhFqGgWhRd/FRBOSLvDUN6lnolVgHzXnB8NMNMdAvJAd8vERb04mL95s 1nKersexERalaPjlw3PK3yiXIgVMV16ylvJusaLcE455D9mRbYJW0AZfJ OAQ0KEzqEBUM8R1v78DzpHFWn1qv+EkAKnN0w1CEXILdAnw8e5+F4ILzo g==; X-CSE-ConnectionGUID: 9vuUiy1cQC2EWpK8YJM3Sw== X-CSE-MsgGUID: EaZFTGIATqS6WCgIyMWDfQ== X-IronPort-AV: E=McAfee;i="6800,10657,11625"; a="91721897" X-IronPort-AV: E=Sophos;i="6.20,229,1758610800"; d="scan'208";a="91721897" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Nov 2025 13:47:53 -0800 X-CSE-ConnectionGUID: fpNHDunVSumny/Eo4+NUgA== X-CSE-MsgGUID: zMy1XGivTE2OWhb7nJjaAg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.20,229,1758610800"; d="scan'208";a="193281173" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Nov 2025 13:47:52 -0800 From: Matthew Brost To: intel-xe@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Subject: [PATCH v6 2/8] drm/sched: Add pending job list iterator Date: Wed, 26 Nov 2025 13:47:42 -0800 Message-Id: <20251126214748.650107-3-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251126214748.650107-1-matthew.brost@intel.com> References: <20251126214748.650107-1-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" Stop open coding pending job list in drivers. Add pending job list iterator which safely walks DRM scheduler list asserting DRM scheduler is stopped. v2: - Fix checkpatch (CI) v3: - Drop locked version (Christian) v4: - Reorder patch (Niranjana) Signed-off-by: Matthew Brost Reviewed-by: Niranjana Vishwanathapura --- include/drm/gpu_scheduler.h | 50 +++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h index 385bf34e76fe..9d228513d06c 100644 --- a/include/drm/gpu_scheduler.h +++ b/include/drm/gpu_scheduler.h @@ -730,4 +730,54 @@ static inline bool drm_sched_job_is_signaled(struct drm_sched_job *job) dma_fence_is_signaled(&s_fence->finished); } +/** + * struct drm_sched_pending_job_iter - DRM scheduler pending job iterator state + * @sched: DRM scheduler associated with pending job iterator + */ +struct drm_sched_pending_job_iter { + struct drm_gpu_scheduler *sched; +}; + +/* Drivers should never call this directly */ +static inline struct drm_sched_pending_job_iter +__drm_sched_pending_job_iter_begin(struct drm_gpu_scheduler *sched) +{ + struct drm_sched_pending_job_iter iter = { + .sched = sched, + }; + + WARN_ON(!drm_sched_is_stopped(sched)); + return iter; +} + +/* Drivers should never call this directly */ +static inline void +__drm_sched_pending_job_iter_end(const struct drm_sched_pending_job_iter iter) +{ + WARN_ON(!drm_sched_is_stopped(iter.sched)); +} + +DEFINE_CLASS(drm_sched_pending_job_iter, struct drm_sched_pending_job_iter, + __drm_sched_pending_job_iter_end(_T), + __drm_sched_pending_job_iter_begin(__sched), + struct drm_gpu_scheduler *__sched); +static inline void * +class_drm_sched_pending_job_iter_lock_ptr(class_drm_sched_pending_job_iter_t *_T) +{ return _T; } +#define class_drm_sched_pending_job_iter_is_conditional false + +/** + * drm_sched_for_each_pending_job() - Iterator for each pending job in scheduler + * @__job: Current pending job being iterated over + * @__sched: DRM scheduler to iterate over pending jobs + * @__entity: DRM scheduler entity to filter jobs, NULL indicates no filter + * + * Iterator for each pending job in scheduler, filtering on an entity, and + * enforcing scheduler is fully stopped + */ +#define drm_sched_for_each_pending_job(__job, __sched, __entity) \ + scoped_guard(drm_sched_pending_job_iter, (__sched)) \ + list_for_each_entry((__job), &(__sched)->pending_list, list) \ + for_each_if(!(__entity) || (__job)->entity == (__entity)) + #endif -- 2.34.1