From nobody Tue Sep 16 02:26:20 2025 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 9B1CAC54EBD for ; Sun, 8 Jan 2023 21:05:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229734AbjAHVFv (ORCPT ); Sun, 8 Jan 2023 16:05:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236163AbjAHVFW (ORCPT ); Sun, 8 Jan 2023 16:05:22 -0500 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5BA4910FD2 for ; Sun, 8 Jan 2023 13:05:20 -0800 (PST) Received: from workpc.. (109-252-117-89.nat.spd-mgts.ru [109.252.117.89]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dmitry.osipenko) by madras.collabora.co.uk (Postfix) with ESMTPSA id AD0AF6602D58; Sun, 8 Jan 2023 21:05:12 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1673211919; bh=JyCBBj57CG4UEcAgh5XlzQP+feZackRuTqvxuLO6FXw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UMFI6j7Z/T6DFKbnAwdQfrut6aKsVYXV2dofNiQFb8CHb2TvhtrF1RAT5Owkh21pd zFZwfVhTuPc6d6HtY8XCp/H/+BTNs7tgh+E23b0tqHSJ6kL8jirWu4CNCT5WxDvdrs N2sn8QQL/Ubbe12w4IqmdkfmLO79q119DJM2U9aeP0Yo1GHqLX883ISRdB42EUHssP MFHguzwQ92PPxqBQpymOxN5duVcrhdZGZZ47MyvBylI+5uWlmLBTKbr0Uwem1o7Y78 wNtTABMZM+yXa+R8rqLut5ih+fT5pOLzkbGP8PMS0IrDSIsyuAiJQflAJSXyfEbL50 pmUs+CKgmjl7Q== From: Dmitry Osipenko To: David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu , Daniel Vetter , Daniel Almeida , Gustavo Padovan , Daniel Stone , Tomeu Vizoso , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Clark , Sumit Semwal , =?UTF-8?q?Christian=20K=C3=B6nig?= , Qiang Yu , Steven Price , Alyssa Rosenzweig , Rob Herring , Sean Paul , Dmitry Baryshkov , Abhinav Kumar Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, kernel@collabora.com, virtualization@lists.linux-foundation.org Subject: [PATCH v10 02/11] drm/panfrost: Don't sync rpm suspension after mmu flushing Date: Mon, 9 Jan 2023 00:04:36 +0300 Message-Id: <20230108210445.3948344-3-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230108210445.3948344-1-dmitry.osipenko@collabora.com> References: <20230108210445.3948344-1-dmitry.osipenko@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" 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 --- 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/panf= rost/panfrost_mmu.c index 4e83a1891f3e..666a5e53fe19 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_de= vice *pfdev, if (pm_runtime_active(pfdev->dev)) mmu_hw_do_operation(pfdev, mmu, iova, size, AS_COMMAND_FLUSH_PT); =20 - pm_runtime_put_sync_autosuspend(pfdev->dev); + pm_runtime_put_autosuspend(pfdev->dev); } =20 static int mmu_map_sg(struct panfrost_device *pfdev, struct panfrost_mmu *= mmu, --=20 2.38.1