Message ID | 20200707201229.472834-18-daniel.vetter@ffwll.ch (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=uWSz=AS=lists.freedesktop.org=intel-gfx-bounces@kernel.org> 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 4D24692A for <patchwork-intel-gfx@patchwork.kernel.org>; Tue, 7 Jul 2020 20:13:56 +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 2B70020720 for <patchwork-intel-gfx@patchwork.kernel.org>; Tue, 7 Jul 2020 20:13:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ffwll.ch header.i=@ffwll.ch header.b="NjaGAbSC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2B70020720 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ffwll.ch 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 562916E802; Tue, 7 Jul 2020 20:13:06 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-wr1-x443.google.com (mail-wr1-x443.google.com [IPv6:2a00:1450:4864:20::443]) by gabe.freedesktop.org (Postfix) with ESMTPS id D28576E5D5 for <intel-gfx@lists.freedesktop.org>; Tue, 7 Jul 2020 20:13:02 +0000 (UTC) Received: by mail-wr1-x443.google.com with SMTP id z13so46596581wrw.5 for <intel-gfx@lists.freedesktop.org>; Tue, 07 Jul 2020 13:13:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=WFOW4gT++YmCnjEMBR7D68rnZUAaxpD2kN9hzahCniw=; b=NjaGAbSC6ieCw+o13JLknjpy1WVp7+Fj2e9N0C2b6OCOtbyYMDjN0SFZbLHfb+xfUZ ojz1MHnaHqXj3KkbChlVYuP3Ya4lN7G+SHI5sOuLTS6lleUGlrq+uhR3KmuQGNpyuPWO zST7Qbzq97VIRBvuRY3fbcNcRnbFTDngLqmoo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=WFOW4gT++YmCnjEMBR7D68rnZUAaxpD2kN9hzahCniw=; b=MnCz9ugz0HB4/+L34pOJ4fJu86HMTAm8ziZQeM2+8I5Rm7sq6sxNiBgFtxpkz+IPtr pliRfwSZeRUwf/f4t92Gl6NkiQo2Owniq2SzlqY15OCKV2v9Yk8FOkk9C7SjVSAtjL+T gehvRHhhlwKRI24ty6lZ2q+HMbjTvCdkm5rRqp/I+Mx5QVv1P6gk5UJ88GfYC927FiR+ f/vpvMOQWNGDez2tg8r/EqXne1e/koyWbxU0er+BuyOmv3jlp7mfShp4qtBzln+tCE91 Lu5c0QrGpABANOOn3H3DVyiWwhrod7m+W4auA9zYl8TQeLrdKWMMbHmrrgmK868WBWtP 9oYA== X-Gm-Message-State: AOAM531YIs2IJPdPDlqvxGgL1l/l5hITEbIiIq0/XPB6vDtpNJvxw8+l XP8gOSkI7GbZjlkOEZdf9mIBseVQbPc= X-Google-Smtp-Source: ABdhPJxz2+QUQcXCyxki0D2e+ndxvRp+10YXL0LWJsIgkTzFIG0bV94n9tB2byQ48J/mXJg0xj2TXw== X-Received: by 2002:a5d:4f8b:: with SMTP id d11mr30381378wru.147.1594152781551; Tue, 07 Jul 2020 13:13:01 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id q7sm2515262wra.56.2020.07.07.13.13.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jul 2020 13:13:00 -0700 (PDT) From: Daniel Vetter <daniel.vetter@ffwll.ch> To: DRI Development <dri-devel@lists.freedesktop.org> Date: Tue, 7 Jul 2020 22:12:21 +0200 Message-Id: <20200707201229.472834-18-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200707201229.472834-1-daniel.vetter@ffwll.ch> References: <20200707201229.472834-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 17/25] drm/scheduler: use dma-fence annotations in main thread X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development <intel-gfx.lists.freedesktop.org> List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>, <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe> List-Archive: <https://lists.freedesktop.org/archives/intel-gfx> List-Post: <mailto:intel-gfx@lists.freedesktop.org> List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help> List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>, <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe> Cc: linux-rdma@vger.kernel.org, Daniel Vetter <daniel.vetter@ffwll.ch>, Intel Graphics Development <intel-gfx@lists.freedesktop.org>, amd-gfx@lists.freedesktop.org, Chris Wilson <chris@chris-wilson.co.uk>, linaro-mm-sig@lists.linaro.org, Daniel Vetter <daniel.vetter@intel.com>, =?utf-8?q?Christian_K=C3=B6nig?= <christian.koenig@amd.com>, linux-media@vger.kernel.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org> |
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dma-fence annotations, round 3
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diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index d6eaa23ad746..52f1ab4bc922 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -765,9 +765,12 @@ static int drm_sched_main(void *param) struct sched_param sparam = {.sched_priority = 1}; struct drm_gpu_scheduler *sched = (struct drm_gpu_scheduler *)param; int r; + bool fence_cookie; sched_setscheduler(current, SCHED_FIFO, &sparam); + fence_cookie = dma_fence_begin_signalling(); + while (!kthread_should_stop()) { struct drm_sched_entity *entity = NULL; struct drm_sched_fence *s_fence; @@ -825,6 +828,9 @@ static int drm_sched_main(void *param) wake_up(&sched->job_scheduled); } + + dma_fence_end_signalling(fence_cookie); + return 0; }
If the scheduler rt thread gets stuck on a mutex that we're holding while waiting for gpu workloads to complete, we have a problem. Add dma-fence annotations so that lockdep can check this for us. I've tried to quite carefully review this, and I think it's at the right spot. But obviosly no expert on drm scheduler. Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Cc: linux-rdma@vger.kernel.org Cc: amd-gfx@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Christian König <christian.koenig@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> --- drivers/gpu/drm/scheduler/sched_main.c | 6 ++++++ 1 file changed, 6 insertions(+)