From patchwork Tue May 19 22:23:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 11558919 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6252E618 for ; Tue, 19 May 2020 22:23:48 +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 F303C206C3 for ; Tue, 19 May 2020 22:23:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F303C206C3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=chris-wilson.co.uk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7B82D6E32E; Tue, 19 May 2020 22:23:47 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8238B6E32E for ; Tue, 19 May 2020 22:23:46 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from build.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 21234022-1500050 for ; Tue, 19 May 2020 23:23:43 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Tue, 19 May 2020 23:23:42 +0100 Message-Id: <20200519222342.6395-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Subject: [Intel-gfx] [CI] drm/i915/gt: Trace the CS interrupt 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" We have traces for the semaphore and the error, but not the far more frequent CS interrupts. This is likely to be too much, but for the purpose of live_unlite_preempt it may answer a question or two. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/gt/intel_gt_irq.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_irq.c b/drivers/gpu/drm/i915/gt/intel_gt_irq.c index 0cc7dd54f4f9..4291d55c5457 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_irq.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_irq.c @@ -48,8 +48,12 @@ cs_irq_handler(struct intel_engine_cs *engine, u32 iir) tasklet = true; } - if (iir & GT_CONTEXT_SWITCH_INTERRUPT) + if (iir & GT_CONTEXT_SWITCH_INTERRUPT) { + ENGINE_TRACE(engine, "CS: %x %x\n", + ENGINE_READ_FW(engine, RING_EXECLIST_STATUS_HI), + ENGINE_READ_FW(engine, RING_EXECLIST_STATUS_LO)); tasklet = true; + } if (iir & GT_RENDER_USER_INTERRUPT) { intel_engine_signal_breadcrumbs(engine);