From patchwork Thu Jun 3 21:27:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Brost X-Patchwork-Id: 12298023 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D4BEC47097 for ; Thu, 3 Jun 2021 21:09:55 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id E7BC1613D8 for ; Thu, 3 Jun 2021 21:09:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E7BC1613D8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 939526EEB2; Thu, 3 Jun 2021 21:09:42 +0000 (UTC) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4C35A6EADD; Thu, 3 Jun 2021 21:09:37 +0000 (UTC) IronPort-SDR: jvYNZAwNxVbensvJSnnjqmo0UIfWzpg34Xi/Swd90SUF+kqQrZta+kFw6CZst34xyWLzpQSsUt +GBaQ5bMaKPQ== X-IronPort-AV: E=McAfee;i="6200,9189,10004"; a="203966009" X-IronPort-AV: E=Sophos;i="5.83,246,1616482800"; d="scan'208";a="203966009" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jun 2021 14:09:35 -0700 IronPort-SDR: +1a6VYe7OikhUZNmhvQ2RTtXJcuBzi36honRS6TGxaPJ2ZyfundBOkhJi7EpXxKnIXGqDAhKVb 5reIt8sopJcw== X-IronPort-AV: E=Sophos;i="5.83,246,1616482800"; d="scan'208";a="448015263" Received: from dhiatt-server.jf.intel.com ([10.54.81.3]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jun 2021 14:09:34 -0700 From: Matthew Brost To: , Subject: [PATCH 2/9] drm/i915: Add i915_sched_engine_is_empty function Date: Thu, 3 Jun 2021 14:27:15 -0700 Message-Id: <20210603212722.59719-3-matthew.brost@intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20210603212722.59719-1-matthew.brost@intel.com> References: <20210603212722.59719-1-matthew.brost@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: daniel.vetter@intel.com, daniele.ceraolospurio@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add wrapper function around RB tree to determine if i915_sched_engine is empty. Signed-off-by: Matthew Brost Reviewed-by: Jason Ekstrand --- drivers/gpu/drm/i915/gt/intel_engine_cs.c | 2 +- drivers/gpu/drm/i915/gt/intel_execlists_submission.c | 6 +++--- drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 2 +- drivers/gpu/drm/i915/i915_scheduler.h | 6 ++++++ 4 files changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index d0f3814440f6..85f2effe9dc6 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -1287,7 +1287,7 @@ bool intel_engine_is_idle(struct intel_engine_cs *engine) intel_engine_flush_submission(engine); /* ELSP is empty, but there are ready requests? E.g. after reset */ - if (!RB_EMPTY_ROOT(&engine->sched_engine->queue.rb_root)) + if (!i915_sched_engine_is_empty(engine->sched_engine)) return false; /* Ring stopped? */ diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c index d1dc1db3e378..2326a73af6d3 100644 --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c @@ -384,7 +384,7 @@ __unwind_incomplete_requests(struct intel_engine_cs *engine) prio = rq_prio(rq); pl = i915_sched_lookup_priolist(engine, prio); } - GEM_BUG_ON(RB_EMPTY_ROOT(&engine->sched_engine->queue.rb_root)); + GEM_BUG_ON(i915_sched_engine_is_empty(engine->sched_engine)); list_move(&rq->sched.link, pl); set_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); @@ -1139,7 +1139,7 @@ static bool needs_timeslice(const struct intel_engine_cs *engine, } /* Otherwise, ELSP[0] is by itself, but may be waiting in the queue */ - if (!RB_EMPTY_ROOT(&engine->sched_engine->queue.rb_root)) { + if (!i915_sched_engine_is_empty(engine->sched_engine)) { ENGINE_TRACE(engine, "timeslice required for queue\n"); return true; } @@ -2487,7 +2487,7 @@ static void execlists_submit_request(struct i915_request *request) } else { queue_request(engine, request); - GEM_BUG_ON(RB_EMPTY_ROOT(&engine->sched_engine->queue.rb_root)); + GEM_BUG_ON(i915_sched_engine_is_empty(engine->sched_engine)); GEM_BUG_ON(list_empty(&request->sched.link)); if (submit_queue(engine, request)) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index d42dea79ee64..5d00f2e3c1de 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -541,7 +541,7 @@ static void guc_submit_request(struct i915_request *rq) queue_request(engine, rq, rq_prio(rq)); - GEM_BUG_ON(RB_EMPTY_ROOT(&engine->sched_engine->queue.rb_root)); + GEM_BUG_ON(i915_sched_engine_is_empty(engine->sched_engine)); GEM_BUG_ON(list_empty(&rq->sched.link)); tasklet_hi_schedule(&engine->execlists.tasklet); diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h index 91a04e34cac5..5bec7b3b8456 100644 --- a/drivers/gpu/drm/i915/i915_scheduler.h +++ b/drivers/gpu/drm/i915/i915_scheduler.h @@ -66,6 +66,12 @@ i915_sched_engine_put(struct i915_sched_engine *sched_engine) kref_put(&sched_engine->ref, i915_sched_engine_free); } +static inline bool +i915_sched_engine_is_empty(struct i915_sched_engine *sched_engine) +{ + return RB_EMPTY_ROOT(&sched_engine->queue.rb_root); +} + void i915_request_show_with_schedule(struct drm_printer *m, const struct i915_request *rq, const char *prefix,