From patchwork Wed May 1 11:17:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Trimmer X-Patchwork-Id: 13650476 Received: from mx0b-001ae601.pphosted.com (mx0a-001ae601.pphosted.com [67.231.149.25]) (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 ACF9448CE0; Wed, 1 May 2024 11:18:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.149.25 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714562302; cv=none; b=At4i6PtlnOcLQSvMFe4Bw+XbfZdUuDwtQNQvfHOtsdccu8WmvEgRcD6vNa2VY0rHey3uhe1jfETcZ/Ehrdd+ohML9ibNoT3Ha4i9nJiG2qEaJiqRgDh+2J7if0W937NVtIHr3OixGGJ5Mscb+OG7uLWGkbaJ2wzGYv0bn7x/TmQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714562302; c=relaxed/simple; bh=gVtZDWeL0GnKDnv1K0d/qPXgVxF/piULjqvfFsfeBlM=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=uONMhYh4CaqRoRdPf4Nd2Kt2R2auboW/P79nkC7rWQ2HBtARj9sWdfdlTrWtgra4wgTMGj3hy8jqi1goN7/TSuxP06EHZUtWXWWMo4UZewOdN3kecakcmDkDk+mXq8V38s9NBwDBf/yiVTZlFNVJF0kqhQQFfbVUvLsPduCF1vQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=opensource.cirrus.com; spf=pass smtp.mailfrom=opensource.cirrus.com; dkim=pass (2048-bit key) header.d=cirrus.com header.i=@cirrus.com header.b=Pmmg8EE6; arc=none smtp.client-ip=67.231.149.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=opensource.cirrus.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=opensource.cirrus.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cirrus.com header.i=@cirrus.com header.b="Pmmg8EE6" Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4417Um2j022501; Wed, 1 May 2024 06:18:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h= from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding:content-type; s=PODMain02222019; bh=0 qg2zDno4xP0F8pSdjIJ1Qbjok+FbP9CVsl5H/bP8FA=; b=Pmmg8EE6t5AwdNNCl ZaX3f8kQXvBPyuXt2veLchRouIofE3yusKtreKQ8a64wMNv6We4RE86zs6zhVZzd s4dcbVDYvI1RkyHB0wb/TwYuTUaQeLCZdDfBcS0g8RYqT0t8QUo/6viaYQBblnZF p8fOnf31vGt6nTb+Veb+dK4KvnhJ7xWePnauubYx3ZJ4ltXWrlAk++3Bly7vwNlF mhxekI7S1CQCZZKqPhILDSbxJonImsBbq42v+KJLtt4ft8+srXV89dqk6IZ9C3Jw TU1fiHYcK/R8fc2QldbsOsH32Otpz+TbllfCBddi+Vamw8qC6JSjw+M9oBTHYX1h cp0FQ== Received: from ediex02.ad.cirrus.com ([84.19.233.68]) by mx0a-001ae601.pphosted.com (PPS) with ESMTPS id 3xrxry4f6d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 01 May 2024 06:18:08 -0500 (CDT) Received: from ediex02.ad.cirrus.com (198.61.84.81) by ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 1 May 2024 12:18:05 +0100 Received: from ediswmail9.ad.cirrus.com (198.61.86.93) by anon-ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server id 15.2.1544.9 via Frontend Transport; Wed, 1 May 2024 12:18:05 +0100 Received: from EDIN6ZZ2FY3.ad.cirrus.com (EDIN6ZZ2FY3.ad.cirrus.com [198.61.64.231]) by ediswmail9.ad.cirrus.com (Postfix) with ESMTP id 7A0C4820249; Wed, 1 May 2024 11:18:05 +0000 (UTC) From: Simon Trimmer To: CC: , , , , "Simon Trimmer" Subject: [PATCH] ALSA: hda: cs35l56: Perform firmware download in the background Date: Wed, 1 May 2024 12:17:55 +0100 Message-ID: <20240501111755.21231-1-simont@opensource.cirrus.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: 3jV06D9VjIG1xtvpJ7uynvOvj50QpCJV X-Proofpoint-GUID: 3jV06D9VjIG1xtvpJ7uynvOvj50QpCJV X-Proofpoint-Spam-Reason: safe It is possible that during system boot when there multiple devices attempting simultaneous initialization on a slow control bus the download of firmware and tuning data may take a user perceivable amount of time. Adopt a pattern used in the ASoC driver and perform this activity in a background thread so that interactive performance is not impaired. Signed-off-by: Simon Trimmer --- sound/pci/hda/cs35l56_hda.c | 89 ++++++++++++++++++++++++++++++------- sound/pci/hda/cs35l56_hda.h | 4 ++ 2 files changed, 76 insertions(+), 17 deletions(-) diff --git a/sound/pci/hda/cs35l56_hda.c b/sound/pci/hda/cs35l56_hda.c index 1a3f84599cb5..042c2407c007 100644 --- a/sound/pci/hda/cs35l56_hda.c +++ b/sound/pci/hda/cs35l56_hda.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -50,11 +51,19 @@ static const struct reg_sequence cs35l56_hda_dai_config[] = { }; +static void cs35l56_hda_wait_dsp_ready(struct cs35l56_hda *cs35l56) +{ + /* Wait for patching to complete */ + flush_work(&cs35l56->dsp_work); +} + static void cs35l56_hda_play(struct cs35l56_hda *cs35l56) { unsigned int val; int ret; + cs35l56_hda_wait_dsp_ready(cs35l56); + pm_runtime_get_sync(cs35l56->base.dev); ret = cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_AUDIO_PLAY); if (ret == 0) { @@ -180,6 +189,8 @@ static int cs35l56_hda_mixer_get(struct snd_kcontrol *kcontrol, unsigned int reg_val; int i; + cs35l56_hda_wait_dsp_ready(cs35l56); + regmap_read(cs35l56->base.regmap, kcontrol->private_value, ®_val); reg_val &= CS35L56_ASP_TXn_SRC_MASK; @@ -203,6 +214,8 @@ static int cs35l56_hda_mixer_put(struct snd_kcontrol *kcontrol, if (item >= CS35L56_NUM_INPUT_SRC) return -EINVAL; + cs35l56_hda_wait_dsp_ready(cs35l56); + regmap_update_bits_check(cs35l56->base.regmap, kcontrol->private_value, CS35L56_INPUT_MASK, cs35l56_tx_input_values[item], &changed); @@ -227,6 +240,8 @@ static int cs35l56_hda_posture_get(struct snd_kcontrol *kcontrol, unsigned int pos; int ret; + cs35l56_hda_wait_dsp_ready(cs35l56); + ret = regmap_read(cs35l56->base.regmap, CS35L56_MAIN_POSTURE_NUMBER, &pos); if (ret) return ret; @@ -248,6 +263,8 @@ static int cs35l56_hda_posture_put(struct snd_kcontrol *kcontrol, (pos > CS35L56_MAIN_POSTURE_MAX)) return -EINVAL; + cs35l56_hda_wait_dsp_ready(cs35l56); + ret = regmap_update_bits_check(cs35l56->base.regmap, CS35L56_MAIN_POSTURE_NUMBER, CS35L56_MAIN_POSTURE_MASK, @@ -291,6 +308,8 @@ static int cs35l56_hda_vol_get(struct snd_kcontrol *kcontrol, int vol; int ret; + cs35l56_hda_wait_dsp_ready(cs35l56); + ret = regmap_read(cs35l56->base.regmap, CS35L56_MAIN_RENDER_USER_VOLUME, &raw_vol); if (ret) @@ -323,6 +342,8 @@ static int cs35l56_hda_vol_put(struct snd_kcontrol *kcontrol, raw_vol = (vol + CS35L56_MAIN_RENDER_USER_VOLUME_MIN) << CS35L56_MAIN_RENDER_USER_VOLUME_SHIFT; + cs35l56_hda_wait_dsp_ready(cs35l56); + ret = regmap_update_bits_check(cs35l56->base.regmap, CS35L56_MAIN_RENDER_USER_VOLUME, CS35L56_MAIN_RENDER_USER_VOLUME_MASK, @@ -539,8 +560,9 @@ static void cs35l56_hda_release_firmware_files(const struct firmware *wmfw_firmw kfree(coeff_filename); } -static void cs35l56_hda_add_dsp_controls(struct cs35l56_hda *cs35l56) +static void cs35l56_hda_create_dsp_controls_work(struct work_struct *work) { + struct cs35l56_hda *cs35l56 = container_of(work, struct cs35l56_hda, control_work); struct hda_cs_dsp_ctl_info info; info.device_name = cs35l56->amp_name; @@ -566,7 +588,7 @@ static void cs35l56_hda_apply_calibration(struct cs35l56_hda *cs35l56) dev_info(cs35l56->base.dev, "Calibration applied\n"); } -static int cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56) +static void cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56) { const struct firmware *coeff_firmware = NULL; const struct firmware *wmfw_firmware = NULL; @@ -574,15 +596,27 @@ static int cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56) char *wmfw_filename = NULL; unsigned int preloaded_fw_ver; bool firmware_missing; - int ret = 0; + bool add_dsp_controls_required = false; + int ret; - /* Prepare for a new DSP power-up */ + /* + * Prepare for a new DSP power-up. If the DSP has had firmware + * downloaded previously then it needs to be powered down so that it + * can be updated and if hadn't been patched before then the controls + * will need to be added once firmware download succeeds. + */ if (cs35l56->base.fw_patched) cs_dsp_power_down(&cs35l56->cs_dsp); + else + add_dsp_controls_required = true; cs35l56->base.fw_patched = false; - pm_runtime_get_sync(cs35l56->base.dev); + ret = pm_runtime_resume_and_get(cs35l56->base.dev); + if (ret < 0) { + dev_err(cs35l56->base.dev, "Failed to resume and get %d\n", ret); + return; + } /* * The firmware can only be upgraded if it is currently running @@ -606,7 +640,6 @@ static int cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56) */ if (!coeff_firmware && firmware_missing) { dev_err(cs35l56->base.dev, ".bin file required but not found\n"); - ret = -ENOENT; goto err_fw_release; } @@ -657,6 +690,15 @@ static int cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56) CS35L56_FIRMWARE_MISSING); cs35l56->base.fw_patched = true; + /* + * Adding controls is deferred to prevent a lock inversion - ALSA takes + * the controls_rwsem when adding a control, the get() / put() + * functions of a control are called holding controls_rwsem and those + * that depend on running firmware wait for dsp_work() to complete. + */ + if (add_dsp_controls_required) + queue_work(cs35l56->dsp_wq, &cs35l56->control_work); + ret = cs_dsp_run(&cs35l56->cs_dsp); if (ret) dev_dbg(cs35l56->base.dev, "%s: cs_dsp_run ret %d\n", __func__, ret); @@ -676,15 +718,19 @@ static int cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56) coeff_firmware, coeff_filename); err_pm_put: pm_runtime_put(cs35l56->base.dev); +} - return ret; +static void cs35l56_hda_dsp_work(struct work_struct *work) +{ + struct cs35l56_hda *cs35l56 = container_of(work, struct cs35l56_hda, dsp_work); + + cs35l56_hda_fw_load(cs35l56); } static int cs35l56_hda_bind(struct device *dev, struct device *master, void *master_data) { struct cs35l56_hda *cs35l56 = dev_get_drvdata(dev); struct hda_component *comps = master_data; - int ret; if (!comps || cs35l56->index < 0 || cs35l56->index >= HDA_MAX_COMPONENTS) return -EINVAL; @@ -698,12 +744,9 @@ static int cs35l56_hda_bind(struct device *dev, struct device *master, void *mas strscpy(comps->name, dev_name(dev), sizeof(comps->name)); comps->playback_hook = cs35l56_hda_playback_hook; - ret = cs35l56_hda_fw_load(cs35l56); - if (ret) - return ret; + queue_work(cs35l56->dsp_wq, &cs35l56->dsp_work); cs35l56_hda_create_controls(cs35l56); - cs35l56_hda_add_dsp_controls(cs35l56); #if IS_ENABLED(CONFIG_SND_DEBUG) cs35l56->debugfs_root = debugfs_create_dir(dev_name(cs35l56->base.dev), sound_debugfs_root); @@ -720,6 +763,9 @@ static void cs35l56_hda_unbind(struct device *dev, struct device *master, void * struct cs35l56_hda *cs35l56 = dev_get_drvdata(dev); struct hda_component *comps = master_data; + cancel_work_sync(&cs35l56->dsp_work); + cancel_work_sync(&cs35l56->control_work); + cs35l56_hda_remove_controls(cs35l56); #if IS_ENABLED(CONFIG_SND_DEBUG) @@ -747,6 +793,10 @@ static int cs35l56_hda_system_suspend(struct device *dev) { struct cs35l56_hda *cs35l56 = dev_get_drvdata(dev); + cs35l56_hda_wait_dsp_ready(cs35l56); + + flush_work(&cs35l56->control_work); + if (cs35l56->playing) cs35l56_hda_pause(cs35l56); @@ -842,11 +892,8 @@ static int cs35l56_hda_system_resume(struct device *dev) ret = cs35l56_is_fw_reload_needed(&cs35l56->base); dev_dbg(cs35l56->base.dev, "fw_reload_needed: %d\n", ret); - if (ret > 0) { - ret = cs35l56_hda_fw_load(cs35l56); - if (ret) - return ret; - } + if (ret > 0) + queue_work(cs35l56->dsp_wq, &cs35l56->dsp_work); if (cs35l56->playing) cs35l56_hda_play(cs35l56); @@ -964,6 +1011,14 @@ int cs35l56_hda_common_probe(struct cs35l56_hda *cs35l56, int hid, int id) mutex_init(&cs35l56->base.irq_lock); dev_set_drvdata(cs35l56->base.dev, cs35l56); + cs35l56->dsp_wq = create_singlethread_workqueue("cs35l56-dsp"); + if (!cs35l56->dsp_wq) { + ret = -ENOMEM; + goto err; + } + INIT_WORK(&cs35l56->dsp_work, cs35l56_hda_dsp_work); + INIT_WORK(&cs35l56->control_work, cs35l56_hda_create_dsp_controls_work); + ret = cs35l56_hda_read_acpi(cs35l56, hid, id); if (ret) goto err; diff --git a/sound/pci/hda/cs35l56_hda.h b/sound/pci/hda/cs35l56_hda.h index 464e4aa63cd1..d207e4e0d167 100644 --- a/sound/pci/hda/cs35l56_hda.h +++ b/sound/pci/hda/cs35l56_hda.h @@ -14,6 +14,7 @@ #include #include #include +#include #include struct dentry; @@ -21,6 +22,9 @@ struct dentry; struct cs35l56_hda { struct cs35l56_base base; struct hda_codec *codec; + struct work_struct dsp_work; + struct work_struct control_work; + struct workqueue_struct *dsp_wq; int index; const char *system_name;