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 0FF09C4167B for ; Mon, 11 Dec 2023 13:53:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343829AbjLKNxU (ORCPT ); Mon, 11 Dec 2023 08:53:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48916 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343811AbjLKNwx (ORCPT ); Mon, 11 Dec 2023 08:52:53 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CF39E120 for ; Mon, 11 Dec 2023 05:52:40 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DFECDC433C7; Mon, 11 Dec 2023 13:52:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702302760; bh=5eTUfLAs5dNNGo6U3I5S3mD2bWixkOLW1aVTlKfHDcw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fixqfHhfON9eL2ARtGWtxTYr+owU+LztZlcuUnunFqJXdXfRUHrIn848sWbNyaLHb jpHYOB3I+MYOmk4km4Lc+aJGyWtyTA0Xc/rprxykP00DJ318fVdPyOp2jSc48EiKAk IdKrkVNKGDE8b4MlsPjMglAZQTMngfSUmrSZPUv2n1IPVeU1Dz6KLTV1i0LGFl9IpL gXRfWFSlm3CisRdja8p6ZlE04y2zr6V+WxKuD3CmL0yd/KHUKwa7L3tO1lVGQfIVe8 TRGOeHH7sYQSu5bmVFV7nOty57MsuYaJx8DQqix0gbRpCPC4gLWf9V5G2DBiLaJGIu 5HFlyV6DRWB+g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Ranjani Sridharan , Pierre-Louis Bossart , =?UTF-8?q?P=C3=A9ter=20Ujfalusi?= , Mark Brown , Sasha Levin , lgirdwood@gmail.com, yung-chuan.liao@linux.intel.com, daniel.baluta@nxp.com, perex@perex.cz, tiwai@suse.com, sound-open-firmware@alsa-project.org, linux-sound@vger.kernel.org Subject: [PATCH AUTOSEL 6.6 18/47] ASoC: SOF: sof-audio: Modify logic for enabling/disabling topology cores Date: Mon, 11 Dec 2023 08:50:19 -0500 Message-ID: <20231211135147.380223-18-sashal@kernel.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231211135147.380223-1-sashal@kernel.org> References: <20231211135147.380223-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.5 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ranjani Sridharan [ Upstream commit 31ed8da1c8e5e504710bb36863700e3389f8fc81 ] In the current code, we enable a widget core when it is set up and disable it when it is freed. This is problematic with IPC4 because widget free is essentially a NOP and all widgets are freed in the firmware when the pipeline is deleted. This results in a crash during pipeline deletion when one of it's widgets is scheduled to run on a secondary core and is powered off when widget is freed. So, change the logic to enable all cores needed by all the modules in a pipeline when the pipeline widget is set up and disable them after the pipeline widget is freed. Signed-off-by: Ranjani Sridharan Reviewed-by: Pierre-Louis Bossart Reviewed-by: Péter Ujfalusi Signed-off-by: Peter Ujfalusi Link: https://lore.kernel.org/r/20231124135743.24674-3-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/sof/sof-audio.c | 65 ++++++++++++++++++++++++--------------- 1 file changed, 41 insertions(+), 24 deletions(-) diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c index 563fe6f7789f7..77cc64ac71131 100644 --- a/sound/soc/sof/sof-audio.c +++ b/sound/soc/sof/sof-audio.c @@ -46,6 +46,7 @@ static int sof_widget_free_unlocked(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget) { const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg); + struct snd_sof_pipeline *spipe = swidget->spipe; struct snd_sof_widget *pipe_widget; int err = 0; int ret; @@ -87,15 +88,22 @@ static int sof_widget_free_unlocked(struct snd_sof_dev *sdev, } /* - * disable widget core. continue to route setup status and complete flag - * even if this fails and return the appropriate error + * decrement ref count for cores associated with all modules in the pipeline and clear + * the complete flag */ - ret = snd_sof_dsp_core_put(sdev, swidget->core); - if (ret < 0) { - dev_err(sdev->dev, "error: failed to disable target core: %d for widget %s\n", - swidget->core, swidget->widget->name); - if (!err) - err = ret; + if (swidget->id == snd_soc_dapm_scheduler) { + int i; + + for_each_set_bit(i, &spipe->core_mask, sdev->num_cores) { + ret = snd_sof_dsp_core_put(sdev, i); + if (ret < 0) { + dev_err(sdev->dev, "failed to disable target core: %d for pipeline %s\n", + i, swidget->widget->name); + if (!err) + err = ret; + } + } + swidget->spipe->complete = 0; } /* @@ -108,10 +116,6 @@ static int sof_widget_free_unlocked(struct snd_sof_dev *sdev, err = ret; } - /* clear pipeline complete */ - if (swidget->id == snd_soc_dapm_scheduler) - swidget->spipe->complete = 0; - if (!err) dev_dbg(sdev->dev, "widget %s freed\n", swidget->widget->name); @@ -134,8 +138,10 @@ static int sof_widget_setup_unlocked(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget) { const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg); + struct snd_sof_pipeline *spipe = swidget->spipe; bool use_count_decremented = false; int ret; + int i; /* skip if there is no private data */ if (!swidget->private) @@ -166,19 +172,23 @@ static int sof_widget_setup_unlocked(struct snd_sof_dev *sdev, goto use_count_dec; } - /* enable widget core */ - ret = snd_sof_dsp_core_get(sdev, swidget->core); - if (ret < 0) { - dev_err(sdev->dev, "error: failed to enable target core for widget %s\n", - swidget->widget->name); - goto pipe_widget_free; + /* update ref count for cores associated with all modules in the pipeline */ + if (swidget->id == snd_soc_dapm_scheduler) { + for_each_set_bit(i, &spipe->core_mask, sdev->num_cores) { + ret = snd_sof_dsp_core_get(sdev, i); + if (ret < 0) { + dev_err(sdev->dev, "failed to enable target core %d for pipeline %s\n", + i, swidget->widget->name); + goto pipe_widget_free; + } + } } /* setup widget in the DSP */ if (tplg_ops && tplg_ops->widget_setup) { ret = tplg_ops->widget_setup(sdev, swidget); if (ret < 0) - goto core_put; + goto pipe_widget_free; } /* send config for DAI components */ @@ -208,15 +218,22 @@ static int sof_widget_setup_unlocked(struct snd_sof_dev *sdev, return 0; widget_free: - /* widget use_count and core ref_count will both be decremented by sof_widget_free() */ + /* widget use_count will be decremented by sof_widget_free() */ sof_widget_free_unlocked(sdev, swidget); use_count_decremented = true; -core_put: - if (!use_count_decremented) - snd_sof_dsp_core_put(sdev, swidget->core); pipe_widget_free: - if (swidget->id != snd_soc_dapm_scheduler) + if (swidget->id != snd_soc_dapm_scheduler) { sof_widget_free_unlocked(sdev, swidget->spipe->pipe_widget); + } else { + int j; + + /* decrement ref count for all cores that were updated previously */ + for_each_set_bit(j, &spipe->core_mask, sdev->num_cores) { + if (j >= i) + break; + snd_sof_dsp_core_put(sdev, j); + } + } use_count_dec: if (!use_count_decremented) swidget->use_count--; -- 2.42.0