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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D10EC7618D for ; Mon, 20 Mar 2023 15:16:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232575AbjCTPQf (ORCPT ); Mon, 20 Mar 2023 11:16:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55418 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232538AbjCTPQQ (ORCPT ); Mon, 20 Mar 2023 11:16:16 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B5C6AD1E for ; Mon, 20 Mar 2023 08:11:16 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4A132615AC for ; Mon, 20 Mar 2023 15:11:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5D2D5C433D2; Mon, 20 Mar 2023 15:11:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1679325072; bh=dl3QTd+UtKcU/FC+DFXYJAoSVrWbgV2C49IRHaIEPo8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1CqpNkq4RHn8hfJdcQdKc5DC2sJZscku6pNJka4shdXblo59WNU8rtSHzZXKep8o+ rORtBzj4aDuHZEGTM6YI8OTnIxlZwhMIsSPLyqbNxNd6OVv7MGAdqs2fZTJtcGK7yW OEhEO2ldeqiOhjX3i9+opWLwU8tKgODQ45Agzb0k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Steven Price , Dmitry Osipenko , Sasha Levin Subject: [PATCH 6.2 004/211] drm/panfrost: Dont sync rpm suspension after mmu flushing Date: Mon, 20 Mar 2023 15:52:19 +0100 Message-Id: <20230320145513.482474143@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230320145513.305686421@linuxfoundation.org> References: <20230320145513.305686421@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dmitry Osipenko [ Upstream commit ba3be66f11c3c49afaa9f49b99e21d88756229ef ] Lockdep warns about potential circular locking dependency of devfreq with the fs_reclaim caused by immediate device suspension when mapping is released by shrinker. Fix it by doing the suspension asynchronously. Reviewed-by: Steven Price Fixes: ec7eba47da86 ("drm/panfrost: Rework page table flushing and runtime PM interaction") Signed-off-by: Dmitry Osipenko Link: https://lore.kernel.org/all/20230108210445.3948344-3-dmitry.osipenko@collabora.com/ Signed-off-by: Sasha Levin --- drivers/gpu/drm/panfrost/panfrost_mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index 4e83a1891f3ed..666a5e53fe193 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -282,7 +282,7 @@ static void panfrost_mmu_flush_range(struct panfrost_device *pfdev, if (pm_runtime_active(pfdev->dev)) mmu_hw_do_operation(pfdev, mmu, iova, size, AS_COMMAND_FLUSH_PT); - pm_runtime_put_sync_autosuspend(pfdev->dev); + pm_runtime_put_autosuspend(pfdev->dev); } static int mmu_map_sg(struct panfrost_device *pfdev, struct panfrost_mmu *mmu, -- 2.39.2