From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6B2D21C03 for ; Mon, 20 Mar 2023 14:56:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 84326C433D2; Mon, 20 Mar 2023 14:56:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1679324185; bh=H0IG8z/hSnMcXEU0TgVUWEZOMKBbDpHAy1OGOwj/JY8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LbViEjXsbzNxCdzrpacDqRKiSo/3T8bicps9DxKN2OFTwVvlSaVsPe36ldbv0in50 WiVsF8C8DK2QVmBweXNvBVNwVgOaponVDgedIi5a2vAeGm7VuyGeqy2XTyGbA+Fy5x NpkWnzzAqchj7xXmyTk38TrjhcBZkwuwetcRoJiQ= 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 5.15 002/115] drm/panfrost: Dont sync rpm suspension after mmu flushing Date: Mon, 20 Mar 2023 15:53:34 +0100 Message-Id: <20230320145449.441004727@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230320145449.336983711@linuxfoundation.org> References: <20230320145449.336983711@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 c3292a6bd1ae8..d6dda97e2591d 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -253,7 +253,7 @@ 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