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[23.128.96.18]) by mx.google.com with ESMTP id j90si1873125edc.496.2020.05.14.06.58.48; Thu, 14 May 2020 06:59:11 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=cCvY9KI1; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727123AbgENN4v (ORCPT + 99 others); Thu, 14 May 2020 09:56:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726050AbgENN4u (ORCPT ); Thu, 14 May 2020 09:56:50 -0400 Received: from mail-ed1-x543.google.com (mail-ed1-x543.google.com [IPv6:2a00:1450:4864:20::543]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9CFCAC061A0C for ; Thu, 14 May 2020 06:56:50 -0700 (PDT) Received: by mail-ed1-x543.google.com with SMTP id l3so2410287edq.13 for ; Thu, 14 May 2020 06:56:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=9+xHuZjo6KNAs+z1Fg1etYI0ZDPjZlGNVfRX79r5Asc=; b=cCvY9KI1FbDobXpMhhwl2WwnN+EsPPvgYyEiMrAD4glHm4KzFVHDgnlpwH37j9MbtK gsz+qcsUAu91xC+geISjhtgZCIITvJyxIKBcGKcQVJ6Prl/fFp/FbXWswxx02m7W+csz MgUq4qq4DY+8xNKuJ9jUCctr9J3PgoS/G2Xp1OrUYl5zn0Qlk6zcNjmQct511eDI4jUT VTY7VOEovgUg+2H1srBFRhwLrVwDN0ZEuAdUzpToBpUnbOEgh4xfp5CCiUURCb8jldco Gv+Ep+w8U2OBvonD0rlxnLdQaZl48WqN9Jx8G0EvYnSF7hRSu9QihEAasn2+QNyaRX/2 tK9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=9+xHuZjo6KNAs+z1Fg1etYI0ZDPjZlGNVfRX79r5Asc=; b=QfQr+COAFFeh+76wL9JW49Pc1FDVGQNrlQRxohfEbRAPXPJ1WW2TLVByreIT/diEH0 dKrXAKfoI4VIjttxmShEPFH4kfqlSuQapcmMhKN4YgdEoavOMfXDv08CxoOQZ9C0GMOl Z6oz+4oOIEWOciI4+E1cX0qyEx+PbUzAwTFeyD5kaQg+xs4OdvXHGrC6blKcUQRGAzzz JQIGKoxoa+lRaBkjCTTFUzDDP7zVl0CN0Ths6G8S2GbZZYmll29y+Y8WurSCwzlfjbT9 j3lGmobp6xuXktMaxOUBo3L2MGvXZdtrX0iVA0deBfzMeUqF/pV/4q5FP3iY2IkvdbaS p+rA== X-Gm-Message-State: AOAM530YD6fVMGD6jiplI6/38k5f/6EtvaOLPxRSXhaOdCh7uMST1WNV R2wNc6oNXVpiFpxt+eDL1fTaJF6AbXwR19AqH7cgag== X-Received: by 2002:aa7:d90f:: with SMTP id a15mr342636edr.52.1589464608820; Thu, 14 May 2020 06:56:48 -0700 (PDT) MIME-Version: 1.0 References: <20200513192020.544928-1-lma@semihalf.com> <52ab4557-e551-ce20-247c-681c2a0d1ad1@linux.intel.com> In-Reply-To: <52ab4557-e551-ce20-247c-681c2a0d1ad1@linux.intel.com> From: Guenter Roeck Date: Thu, 14 May 2020 06:56:37 -0700 Message-ID: Subject: Re: [PATCH] ASoC: Intel: kbl_rt5663_rt5514_max98927: Split be_hw_params_fixup function To: Pierre-Louis Bossart Cc: Lukasz Majczak , Liam Girdwood , Jie Yang , alsa-devel@alsa-project.org, Radoslaw Biernacki , Ross Zwisler , linux-kernel , Bob Brandt , Marcin Wojtas , Alex Levin , Guenter Roeck Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 14, 2020 at 5:47 AM Pierre-Louis Bossart wrote: > > > > On 5/13/20 2:20 PM, Lukasz Majczak wrote: > > Split be_hw_params_fixup function for different codecs as current common > > function, leads to crash while trying to get snd_soc_dpcm with > > container_of() macro in kabylake_ssp_fixup(). > > The crash call path looks as below: > > soc_pcm_hw_params() > > snd_soc_dai_hw_params(codec_dai, substream, &codec_params); > > rtd->dai_link->be_hw_params_fixup(rtd, params) > > kabylake_ssp_fixup() > > In this case, codec_params is just a copy of an internal structure and is > > not embedded into struct snd_soc_dpcm thus we cannot use > > container_of() on it. > > This looks like a nice/welcome change, we've had these unexplained > crashes on KBL since 4.19 (reported by Guenter and me). I thought they > were topology related. > Not entirely unexplained. See https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/1600868, which fixes the problem for all three affected drivers. Someone had told me, though, that the problem is no longer seen. Guess that was wrong. Guenter > If indeed this fixes the issue, it might be worth applying in to all > stable releases? > > Since we have the same code structure for the other kbl drivers, would > it also make sense to apply the same fixes there: > > kbl_da7219_max98927.c: struct snd_soc_dpcm *dpcm = container_of( > kbl_rt5663_max98927.c: struct snd_soc_dpcm *dpcm = container_of( > > > > > > Signed-off-by: Lukasz Majczak > > --- > > .../intel/boards/kbl_rt5663_rt5514_max98927.c | 68 +++++++++++-------- > > 1 file changed, 39 insertions(+), 29 deletions(-) > > > > diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c > > index 1b1f8d7a4ea3..2e0ae724122c 100644 > > --- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c > > +++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c > > @@ -328,46 +328,55 @@ static const struct snd_soc_ops kabylake_rt5663_fe_ops = { > > .startup = kbl_fe_startup, > > }; > > > > -static int kabylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd, > > - struct snd_pcm_hw_params *params) > > +static void kabylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd, > > + struct snd_pcm_hw_params *params, snd_pcm_format_t pcm_fmt) > > { > > struct snd_interval *rate = hw_param_interval(params, > > SNDRV_PCM_HW_PARAM_RATE); > > - struct snd_interval *chan = hw_param_interval(params, > > + struct snd_interval *channels = hw_param_interval(params, > > SNDRV_PCM_HW_PARAM_CHANNELS); > > struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); > > - struct snd_soc_dpcm *dpcm = container_of( > > - params, struct snd_soc_dpcm, hw_params); > > - struct snd_soc_dai_link *fe_dai_link = dpcm->fe->dai_link; > > - struct snd_soc_dai_link *be_dai_link = dpcm->be->dai_link; > > > > /* > > * The ADSP will convert the FE rate to 48k, stereo, 24 bit > > */ > > - if (!strcmp(fe_dai_link->name, "Kbl Audio Port") || > > - !strcmp(fe_dai_link->name, "Kbl Audio Headset Playback") || > > - !strcmp(fe_dai_link->name, "Kbl Audio Capture Port")) { > > - rate->min = rate->max = 48000; > > - chan->min = chan->max = 2; > > - snd_mask_none(fmt); > > - snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); > > - } else if (!strcmp(fe_dai_link->name, "Kbl Audio DMIC cap")) { > > - if (params_channels(params) == 2 || > > - DMIC_CH(dmic_constraints) == 2) > > - chan->min = chan->max = 2; > > - else > > - chan->min = chan->max = 4; > > - } > > - /* > > - * The speaker on the SSP0 supports S16_LE and not S24_LE. > > - * thus changing the mask here > > - */ > > - if (!strcmp(be_dai_link->name, "SSP0-Codec")) > > - snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); > > > > + rate->min = rate->max = 48000; > > + channels->min = channels->max = 2; > > + > > + snd_mask_none(fmt); > > + snd_mask_set_format(fmt, pcm_fmt); > > +} > > + > > +static int kabylake_ssp0_fixup(struct snd_soc_pcm_runtime *rtd, > > + struct snd_pcm_hw_params *params) > > +{ > > + kabylake_ssp_fixup(rtd, params, SNDRV_PCM_FORMAT_S16_LE); > > return 0; > > } > > > > +static int kabylake_ssp1_fixup(struct snd_soc_pcm_runtime *rtd, > > + struct snd_pcm_hw_params *params) > > +{ > > + > > + kabylake_ssp_fixup(rtd, params, SNDRV_PCM_FORMAT_S24_LE); > > + return 0; > > +} > > + > > +static int kabylake_dmic_cap_fixup(struct snd_soc_pcm_runtime *rtd, > > + struct snd_pcm_hw_params *params) > > +{ > > + struct snd_interval *channels = hw_param_interval(params, > > + SNDRV_PCM_HW_PARAM_CHANNELS); > > + > > + if (params_channels(params) == 2 || > > + DMIC_CH(dmic_constraints) == 2) > > + channels->min = channels->max = 2; > > + else > > + channels->min = channels->max = 4; > > + > > + return 0; > > +} > > static int kabylake_rt5663_hw_params(struct snd_pcm_substream *substream, > > struct snd_pcm_hw_params *params) > > { > > @@ -582,6 +591,7 @@ static struct snd_soc_dai_link kabylake_dais[] = { > > .dpcm_capture = 1, > > .nonatomic = 1, > > .dynamic = 1, > > + .be_hw_params_fixup = kabylake_dmic_cap_fixup, > > .ops = &kabylake_dmic_ops, > > SND_SOC_DAILINK_REG(dmic, dummy, platform), > > }, > > @@ -618,7 +628,7 @@ static struct snd_soc_dai_link kabylake_dais[] = { > > SND_SOC_DAIFMT_NB_NF | > > SND_SOC_DAIFMT_CBS_CFS, > > .ignore_pmdown_time = 1, > > - .be_hw_params_fixup = kabylake_ssp_fixup, > > + .be_hw_params_fixup = kabylake_ssp0_fixup, > > .dpcm_playback = 1, > > .dpcm_capture = 1, > > .ops = &kabylake_ssp0_ops, > > @@ -632,7 +642,7 @@ static struct snd_soc_dai_link kabylake_dais[] = { > > .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | > > SND_SOC_DAIFMT_CBS_CFS, > > .ignore_pmdown_time = 1, > > - .be_hw_params_fixup = kabylake_ssp_fixup, > > + .be_hw_params_fixup = kabylake_ssp1_fixup, > > .ops = &kabylake_rt5663_ops, > > .dpcm_playback = 1, > > .dpcm_capture = 1, > >