From patchwork Thu Oct 14 17:19:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Brost X-Patchwork-Id: 12559143 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8626DC4332F for ; Thu, 14 Oct 2021 17:49:14 +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 54E7561056 for ; Thu, 14 Oct 2021 17:49:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 54E7561056 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 37B896E845; Thu, 14 Oct 2021 17:49:06 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id DFB3A6E845; Thu, 14 Oct 2021 17:49:03 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10137"; a="225208228" X-IronPort-AV: E=Sophos;i="5.85,373,1624345200"; d="scan'208";a="225208228" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Oct 2021 10:25:02 -0700 X-IronPort-AV: E=Sophos;i="5.85,373,1624345200"; d="scan'208";a="481360426" Received: from jons-linux-dev-box.fm.intel.com ([10.1.27.20]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Oct 2021 10:24:59 -0700 From: Matthew Brost To: , Cc: Subject: [PATCH 09/25] drm/i915/guc: Ensure GuC schedule operations do not operate on child contexts Date: Thu, 14 Oct 2021 10:19:49 -0700 Message-Id: <20211014172005.27155-10-matthew.brost@intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211014172005.27155-1-matthew.brost@intel.com> References: <20211014172005.27155-1-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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In GuC parent-child contexts the parent context controls the scheduling, ensure only the parent does the scheduling operations. Signed-off-by: Matthew Brost Reviewed-by: John Harrison --- drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) 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 d9f5be00e586..fbcf2dc2b2de 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -324,6 +324,12 @@ static inline void decr_context_committed_requests(struct intel_context *ce) GEM_BUG_ON(ce->guc_state.number_committed_requests < 0); } +static struct intel_context * +request_to_scheduling_context(struct i915_request *rq) +{ + return intel_context_to_parent(rq->context); +} + static inline bool context_guc_id_invalid(struct intel_context *ce) { return ce->guc_id.id == GUC_INVALID_LRC_ID; @@ -1711,6 +1717,7 @@ static void __guc_context_sched_disable(struct intel_guc *guc, GEM_BUG_ON(guc_id == GUC_INVALID_LRC_ID); + GEM_BUG_ON(intel_context_is_child(ce)); trace_intel_context_sched_disable(ce); guc_submission_send_busy_loop(guc, action, ARRAY_SIZE(action), @@ -1936,6 +1943,8 @@ static void guc_context_sched_disable(struct intel_context *ce) intel_wakeref_t wakeref; u16 guc_id; + GEM_BUG_ON(intel_context_is_child(ce)); + spin_lock_irqsave(&ce->guc_state.lock, flags); /* @@ -2304,6 +2313,8 @@ static void guc_signal_context_fence(struct intel_context *ce) { unsigned long flags; + GEM_BUG_ON(intel_context_is_child(ce)); + spin_lock_irqsave(&ce->guc_state.lock, flags); clr_context_wait_for_deregister_to_register(ce); __guc_signal_context_fence(ce); @@ -2334,7 +2345,7 @@ static void guc_context_init(struct intel_context *ce) static int guc_request_alloc(struct i915_request *rq) { - struct intel_context *ce = rq->context; + struct intel_context *ce = request_to_scheduling_context(rq); struct intel_guc *guc = ce_to_guc(ce); unsigned long flags; int ret;