From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.mainlining.org (mail.mainlining.org [5.75.144.95]) (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 B655C38396; Tue, 3 Dec 2024 01:02:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=5.75.144.95 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733187782; cv=none; b=AGjlvuEtqkDkHT7B1CDbhJnbABefIDEUlwlyfBNMHjKE6x+P4m6CySePKM/X+0o7DTEPr74ZCDBbcyk+3KZ83FuP8e7ppDkt6bdbdUiTjuGBzOCRCHepSK+HLVqlzwxKKR+9vT5TtrNHaYw8C6bm22Tb1rUUOVvhtKIufzHmKJ0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733187782; c=relaxed/simple; bh=SWKp4cWTnHKmKqeYuWeZJRu4Pph/3gVQAGuqSfmNPbg=; h=MIME-Version:Date:From:To:Cc:Subject:In-Reply-To:References: Message-ID:Content-Type; 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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mainlining.org; s=psm; t=1733187771; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uRJVLem4BRbbf1cbpyiivjxQWTHED49zB/6UD3aQZ+0=; b=WzDYDxVDsGrEG6aXTifz8qbJwBFmZN+/tGQ3rPlArkO8N8X6XwshKy2mWltN6wiZPvDi4b nO49sWVRNWX+WihL8yirDrCgbwYhj7DmUjEMbYCyEgRA35iryGFxSauP/dx0qFw2ZjNjre MArDIFT+LeYiDN5aXKM6YsnW4Xd+ESVczA2nLCusjhDcA4f0O9yLT8lZUn4Jz5aYlLWhc6 bRnBkk6L+Nsr24UZYYBnD+3Lse4kXmZ/bbcebjLn4wjTLAsh7e/xpZh3hPvORAlr0S7d/n tYodEQlo+Yr1WFhttTDPS3zVXWIjdF18tXXp5qzQ/SbbRVqruKp7z8aIuTKLGg== Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Tue, 03 Dec 2024 02:02:51 +0100 From: barnabas.czeman@mainlining.org To: Bryan O'Donoghue Cc: Vladimir Zapolskiy , Robert Foss , Todor Tomov , Mauro Carvalho Chehab , Konrad Dybcio , Hans Verkuil , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Yassine Oudjana Subject: Re: [PATCH v2] media: qcom: camss: fix VFE pm domain off In-Reply-To: <1d3650f9-fe4d-4972-968a-aaab6fed1044@linaro.org> References: <20241128-vfe_pm_domain_off-v2-1-0bcbbe7daaaf@mainlining.org> <3a5fd596-b442-4d3f-aae2-f454d0cd8e5c@linaro.org> <5cccec71-0cc7-492a-9fb9-903970da05c5@linaro.org> <8dfd2ee1-9baf-441f-8eb9-fa11e830334a@linaro.org> <05e91ae70902f0cd9c47bb4197d8fef1@mainlining.org> <93028653-9919-460e-83d3-84bf5ade56d4@linaro.org> <02282c0d493153c633e7eccf5559452a@mainlining.org> <1d3650f9-fe4d-4972-968a-aaab6fed1044@linaro.org> Message-ID: X-Sender: barnabas.czeman@mainlining.org Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 2024-12-03 00:10, Bryan O'Donoghue wrote: > On 30/11/2024 22:58, barnabas.czeman@mainlining.org wrote: >> On 2024-11-30 22:48, Bryan O'Donoghue wrote: >>> On 29/11/2024 23:52, barnabas.czeman@mainlining.org wrote: >>>> On 2024-11-30 00:07, Bryan O'Donoghue wrote: >>>>> On 29/11/2024 22:45, barnabas.czeman@mainlining.org wrote: >>>>>> On 2024-11-29 23:08, Bryan O'Donoghue wrote: >>>>>>> On 29/11/2024 13:46, barnabas.czeman@mainlining.org wrote: >>>>>>>> On 2024-11-29 13:25, Bryan O'Donoghue wrote: >>>>>>>>> On 29/11/2024 11:44, barnabas.czeman@mainlining.org wrote: >>>>>>>>>>> The change does not describe how to reproduce the problem, >>>>>>>>>>> which commit >>>>>>>>>>> base is tested, which platform is testes, there is no enough >>>>>>>>>>> information, >>>>>>>>>>> unfortunately. >>>>>>>>>> I can reproduce the problem with megapixels-sensorprofile on >>>>>>>>>> msm8953 and >>>>>>>>>> it can be reproduced with megapixels on msm8996. >>>>>>>>>> The base is the last commit on next. >>>>>>>>> >>>>>>>>> Can you verify if vfe_domain_on has run and if so whether or >>>>>>>>> not genpd_link is NULL when that function exists. >>>>>>>>> >>>>>>>> I have added some debug logs it seems pm_domain_on and >>>>>>>> pm_domain_off is called twice on the same object. >>>>>>>> [   63.473360] qcom-camss 1b00020.camss: pm_domain_on 19842ce8 >>>>>>>> link 42973800 >>>>>>>> [   63.481524] qcom-camss 1b00020.camss: pm_domain_on 19840080 >>>>>>>> link 4e413800 >>>>>>>> [   63.481555] qcom-camss 1b00020.camss: pm_domain_on 19842ce8 >>>>>>>> link 42973800 >>>>>>>> [   63.481632] qcom-camss 1b00020.camss: pm_domain_off 19840080 >>>>>>>> link 4e413800 >>>>>>>> [   63.481641] qcom-camss 1b00020.camss: pm_domain_off 19842ce8 >>>>>>>> link 42973800 >>>>>>>> [   63.654004] qcom-camss 1b00020.camss: pm_domain_off 19842ce8 >>>>>>>> link 0 >>>>>>>>> That's the question. >>>>>>>>> >>>>>>>>> --- >>>>>>>>> bod >>>>>>> >>>>>>> Could you provide this output ? >>>>>>> >>>>>>> index 80a62ba112950..b25b8f6b00be1 100644 >>>>>>> --- a/drivers/media/platform/qcom/camss/camss-vfe.c >>>>>>> +++ b/drivers/media/platform/qcom/camss/camss-vfe.c >>>>>>> @@ -595,6 +595,9 @@ void vfe_isr_reset_ack(struct vfe_device >>>>>>> *vfe) >>>>>>>   */ >>>>>>>  void vfe_pm_domain_off(struct vfe_device *vfe) >>>>>>>  { >>>>>>> +dev_info(camss->dev, "%s VFE %d genpd %pK genpd_link %pK\n", >>>>>>> +        __func__, vfe->id, vfe->genpd, vfe->genpd_link); >>>>>>> + >>>>>>>         if (!vfe->genpd) >>>>>>>                 return; >>>>>>> >>>>>>> @@ -609,7 +612,8 @@ void vfe_pm_domain_off(struct vfe_device >>>>>>> *vfe) >>>>>>>  int vfe_pm_domain_on(struct vfe_device *vfe) >>>>>>>  { >>>>>>>         struct camss *camss = vfe->camss; >>>>>>> - >>>>>>> +dev_info(camss->dev, "%s VFE %d genpd %pK genpd_link %pK\n", >>>>>>> +        __func__, vfe->id, vfe->genpd, vfe->genpd_link); >>>>>>>         if (!vfe->genpd) >>>>>>>                 return 0; >>>>>>> >>>>>>> --- >>>>>>> bod >>>>>> I think logging in pm_domain_on should be placed after >>>>>> device_link_add because only NULL >>>>>> will be visible. >>>>>> [   83.040694] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 1 >>>>>> genpd 000000009bd8355f genpd_link 0000000000000000 >>>>>> [   83.049293] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 0 >>>>>> genpd 00000000bfb65e7c genpd_link 0000000000000000 >>>>>> [   83.049353] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 1 >>>>>> genpd 000000009bd8355f genpd_link 00000000ccb0acd9 >>>>>> [   83.049641] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 0 >>>>>> genpd 00000000bfb65e7c genpd_link 00000000348ac3c1 >>>>>> [   83.049654] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 1 >>>>>> genpd 000000009bd8355f genpd_link 00000000ccb0acd9 >>>>>> [   83.241498] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 1 >>>>>> genpd 000000009bd8355f genpd_link 0000000000000000 >>>>> >>>>> Could you add >>>>> >>>>> +++ b/drivers/media/platform/qcom/camss/camss-vfe.c >>>>> @@ -786,7 +786,7 @@ int vfe_get(struct vfe_device *vfe) >>>>>         int ret; >>>>> >>>>>         mutex_lock(&vfe->power_lock); >>>>> - >>>>> +dev_info(vfe->camss->dev, "%s vfe %d power_count %d\n", __func__, >>>>> vfe->id, vfe->power_count); >>>>>         if (vfe->power_count == 0) { >>>>>                 ret = vfe->res->hw_ops->pm_domain_on(vfe); >>>>>                 if (ret < 0) >>>>> @@ -823,6 +823,7 @@ int vfe_get(struct vfe_device *vfe) >>>>> >>>>>         mutex_unlock(&vfe->power_lock); >>>>> >>>>> +dev_info(camss->vfe->dev, "%s vfe %d err=%d\n", __func__, camss- >>>>> >vfe- >id, 0); >>>>>         return 0; >>>>> >>>>>  error_reset: >>>>> @@ -835,7 +836,7 @@ int vfe_get(struct vfe_device *vfe) >>>>> >>>>>  error_pm_domain: >>>>>         mutex_unlock(&vfe->power_lock); >>>>> - >>>>> +dev_info(camss->vfe->dev, "%s vfe %d err=%d\n", __func__, camss- >>>>> >vfe- >id, ret); >>>>>         return ret; >>>>>  } >>>>> >>>>> ? >>>>> >>>>> --- >>>>> bod >>>> I have added little more from the logs because it is only failing in >>>> edge cases megapixels-sensorprofile failing by >>>> different reason quickly and trying to release the device. >>>> [   54.719030] qcom-camss 1b00020.camss: vfe_get vfe 0 err=0 >>>> [   54.750124] qcom-camss 1b00020.camss: vfe_get vfe 0 power_count 1 >>>> [   54.750236] qcom-camss 1b00020.camss: vfe_get vfe 0 err=0 >>>> [   54.751270] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 0 >>>> genpd 00000000beaef03c genpd_link 00000000251644d9 >>> >>>> [   54.751433] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 1 >>>> genpd 000000007ce2da53 genpd_link 0000000000000000 >>>> [   54.755531] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 1 >>>> genpd 000000007ce2da53 genpd_link 0000000058dcd4d6 >>> >>> that's a bug genpd_link should be NULL unless power_count != 0 >>> >>>> [  143.922868] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 1 >>>> genpd 000000007ce2da53 genpd_link 00000000d1fcd54b >>>> [  144.126535] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 1 >>>> genpd 000000007ce2da53 genpd_link 0000000000000000 >>> >>> this is the corollary of the bug >>> >>> can you provide the output of the attached please ? >> [   50.787730] qcom-camss 1b00020.camss: vfe_get/806 vfe 1 power_count >> 0 >> [   50.794888] qcom-camss 1b00020.camss: vfe_get/811 vfe 1 power_count >> 0 >> [   50.795040] qcom-camss 1b00020.camss: vfe_get/816 vfe 1 power_count >> 0 >> [   50.795131] qcom-camss 1b00020.camss: vfe_get/822 vfe 1 power_count >> 0 >> [   50.795172] qcom-camss 1b00020.camss: vfe_get/827 vfe 1 power_count >> 0 >> [   50.795180] qcom-camss 1b00020.camss: vfe_get/830 vfe 1 power_count >> 0 >> [   50.795188] qcom-camss 1b00020.camss: vfe_get/841 vfe 1 power_count >> 1 >> [   50.795413] qcom-camss 1b00020.camss: vfe_put/868 vfe 1 power_count >> 1 >> [   50.795422] qcom-camss 1b00020.camss: vfe_put/874 vfe 1 power_count >> 1 >> [   50.795429] qcom-camss 1b00020.camss: vfe_put/882 vfe 1 power_count >> 1 >> [   50.795468] qcom-camss 1b00020.camss: vfe_put/884 vfe 1 power_count >> 1 >> [   50.799936] qcom-camss 1b00020.camss: vfe_put/886 vfe 1 power_count >> 1 >> [   50.800247] qcom-camss 1b00020.camss: vfe_put/888 vfe 1 power_count >> 1 >> [   50.800257] qcom-camss 1b00020.camss: vfe_put/891 vfe 1 power_count >> 1 >> [   50.800263] qcom-camss 1b00020.camss: vfe_put/893 vfe 1 power_count >> 0 >> [   51.086159] qcom-camss 1b00020.camss: vfe_get/801 vfe 0 power_count >> 0 >> [   51.088158] qcom-camss 1b00020.camss: vfe_get/806 vfe 0 power_count >> 0 >> [   51.092782] qcom-camss 1b00020.camss: vfe_get/811 vfe 0 power_count >> 0 >> [   51.092872] qcom-camss 1b00020.camss: vfe_get/816 vfe 0 power_count >> 0 >> [   51.092945] qcom-camss 1b00020.camss: vfe_get/822 vfe 0 power_count >> 0 >> [   51.092980] qcom-camss 1b00020.camss: vfe_get/827 vfe 0 power_count >> 0 >> [   51.092987] qcom-camss 1b00020.camss: vfe_get/830 vfe 0 power_count >> 0 >> [   51.092994] qcom-camss 1b00020.camss: vfe_get/841 vfe 0 power_count >> 1 >> [   51.117104] qcom-camss 1b00020.camss: vfe_get/841 vfe 0 power_count >> 2 >> [   52.181802] qcom-camss 1b00020.camss: vfe_put/868 vfe 0 power_count >> 2 >> [   52.181828] qcom-camss 1b00020.camss: vfe_put/891 vfe 0 power_count >> 2 >> [   52.181834] qcom-camss 1b00020.camss: vfe_put/893 vfe 0 power_count >> 1 >> [   52.189017] qcom-camss 1b00020.camss: vfe_get/841 vfe 0 power_count >> 2 >> [   64.920259] qcom-camss 1b00020.camss: vfe_get/841 vfe 0 power_count >> 3 >> [   64.920337] qcom-camss 1b00020.camss: vfe_get/841 vfe 0 power_count >> 4 >> [   64.920368] qcom-camss 1b00020.camss: vfe_get/801 vfe 1 power_count >> 0 >> [   64.920656] qcom-camss 1b00020.camss: vfe_get/806 vfe 1 power_count >> 0 >> [   64.920667] qcom-camss 1b00020.camss: vfe_get/811 vfe 1 power_count >> 0 >> [   64.920706] qcom-camss 1b00020.camss: vfe_get/816 vfe 1 power_count >> 0 >> [   64.920734] qcom-camss 1b00020.camss: vfe_get/822 vfe 1 power_count >> 0 >> [   64.920868] qcom-camss 1b00020.camss: vfe_get/827 vfe 1 power_count >> 0 >> [   64.920877] qcom-camss 1b00020.camss: vfe_get/830 vfe 1 power_count >> 0 >> [   64.920886] qcom-camss 1b00020.camss: vfe_get/841 vfe 1 power_count >> 1 >> [   64.920963] qcom-camss 1b00020.camss: vfe_get/841 vfe 1 power_count >> 2 >> [   64.921008] qcom-camss 1b00020.camss: vfe_get/841 vfe 1 power_count >> 3 >> [   64.921871] qcom-camss 1b00020.camss: vfe_put/868 vfe 0 power_count >> 4 >> [   64.921896] qcom-camss 1b00020.camss: vfe_put/891 vfe 0 power_count >> 4 >> [   64.921904] qcom-camss 1b00020.camss: vfe_put/893 vfe 0 power_count >> 3 >> [   64.927278] qcom-camss 1b00020.camss: vfe_get/841 vfe 0 power_count >> 4 >> [   65.096857] qcom-camss 1b00020.camss: vfe_put/868 vfe 1 power_count >> 3 >> [   65.096883] qcom-camss 1b00020.camss: vfe_put/891 vfe 1 power_count >> 3 >> [   65.096889] qcom-camss 1b00020.camss: vfe_put/893 vfe 1 power_count >> 2 >> [   65.096903] qcom-camss 1b00020.camss: vfe_put/868 vfe 1 power_count >> 2 >> [   65.096908] qcom-camss 1b00020.camss: vfe_put/891 vfe 1 power_count >> 2 >> [   65.096914] qcom-camss 1b00020.camss: vfe_put/893 vfe 1 power_count >> 1 >> [   65.096927] qcom-camss 1b00020.camss: vfe_put/868 vfe 1 power_count >> 1 >> [   65.096933] qcom-camss 1b00020.camss: vfe_put/874 vfe 1 power_count >> 1 >> [   65.096938] qcom-camss 1b00020.camss: vfe_put/882 vfe 1 power_count >> 1 >> [   65.096958] qcom-camss 1b00020.camss: vfe_put/884 vfe 1 power_count >> 1 >> [   65.096964] qcom-camss 1b00020.camss: vfe_put/886 vfe 1 power_count >> 1 > > Ah could you supply this output along with the output from the previous > ? [ 55.993565] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 0 genpd 0000000003dcc927 genpd_link 00000000b216e0c0 [ 55.993886] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 1 genpd 0000000012d2fc9c genpd_link 00000000e1d78ab3 [ 55.993956] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 0 genpd 0000000003dcc927 genpd_link 00000000b216e0c0 [ 55.993966] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 1 genpd 0000000012d2fc9c genpd_link 00000000e1d78ab3 [ 95.804026] qcom-camss 1b00020.camss: vfe_get vfe 0 power_count 2 [ 95.804092] qcom-camss 1b00020.camss: vfe_get/845 vfe 0 power_count 3 [ 95.804104] qcom-camss 1b00020.camss: vfe_get vfe 0 err=0 [ 95.804138] qcom-camss 1b00020.camss: vfe_get vfe 0 power_count 3 [ 95.804158] qcom-camss 1b00020.camss: vfe_get/845 vfe 0 power_count 4 [ 95.804169] qcom-camss 1b00020.camss: vfe_get vfe 0 err=0 [ 95.804203] qcom-camss 1b00020.camss: vfe_get vfe 1 power_count 0 [ 95.804214] qcom-camss 1b00020.camss: vfe_get/805 vfe 1 power_count 0 [ 95.804526] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 1 genpd 0000000012d2fc9c genpd_link 00000000cf5c896a [ 95.804543] qcom-camss 1b00020.camss: vfe_get/810 vfe 1 power_count 0 [ 95.804555] qcom-camss 1b00020.camss: vfe_get/815 vfe 1 power_count 0 [ 95.804593] qcom-camss 1b00020.camss: vfe_get/820 vfe 1 power_count 0 [ 95.804629] qcom-camss 1b00020.camss: vfe_get/826 vfe 1 power_count 0 [ 95.804951] qcom-camss 1b00020.camss: vfe_get/831 vfe 1 power_count 0 [ 95.804964] qcom-camss 1b00020.camss: vfe_get/834 vfe 1 power_count 0 [ 95.804976] qcom-camss 1b00020.camss: vfe_get/845 vfe 1 power_count 1 [ 95.804987] qcom-camss 1b00020.camss: vfe_get vfe 1 err=0 [ 95.805028] qcom-camss 1b00020.camss: vfe_get vfe 1 power_count 1 [ 95.805048] qcom-camss 1b00020.camss: vfe_get/845 vfe 1 power_count 2 [ 95.805058] qcom-camss 1b00020.camss: vfe_get vfe 1 err=0 [ 95.805094] qcom-camss 1b00020.camss: vfe_get vfe 1 power_count 2 [ 95.805113] qcom-camss 1b00020.camss: vfe_get/845 vfe 1 power_count 3 [ 95.805123] qcom-camss 1b00020.camss: vfe_get vfe 1 err=0 [ 95.806117] qcom-camss 1b00020.camss: vfe_put/873 vfe 0 power_count 4 [ 95.806131] qcom-camss 1b00020.camss: vfe_put/894 vfe 0 power_count 4 [ 95.806142] qcom-camss 1b00020.camss: vfe_put/896 vfe 0 power_count 3 [ 95.814108] qcom-camss 1b00020.camss: vfe_get vfe 0 power_count 3 [ 95.814134] qcom-camss 1b00020.camss: vfe_get/845 vfe 0 power_count 4 [ 95.814143] qcom-camss 1b00020.camss: vfe_get vfe 0 err=0 [ 95.814886] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 0 genpd 0000000003dcc927 genpd_link 00000000b216e0c0 [ 95.814910] qcom-camss 1b00020.camss: vfe_pm_domain_on VFE 1 genpd 0000000012d2fc9c genpd_link 00000000cf5c896a [ 95.815176] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 0 genpd 0000000003dcc927 genpd_link 00000000b216e0c0 [ 95.815190] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 1 genpd 0000000012d2fc9c genpd_link 00000000cf5c896a [ 96.025733] qcom-camss 1b00020.camss: vfe_put/873 vfe 1 power_count 3 [ 96.025756] qcom-camss 1b00020.camss: vfe_put/894 vfe 1 power_count 3 [ 96.025762] qcom-camss 1b00020.camss: vfe_put/896 vfe 1 power_count 2 [ 96.025775] qcom-camss 1b00020.camss: vfe_put/873 vfe 1 power_count 2 [ 96.025790] qcom-camss 1b00020.camss: vfe_put/894 vfe 1 power_count 2 [ 96.025806] qcom-camss 1b00020.camss: vfe_put/896 vfe 1 power_count 1 [ 96.025839] qcom-camss 1b00020.camss: vfe_put/873 vfe 1 power_count 1 [ 96.025856] qcom-camss 1b00020.camss: vfe_put/879 vfe 1 power_count 1 [ 96.025907] qcom-camss 1b00020.camss: vfe_put/886 vfe 1 power_count 1 [ 96.025952] qcom-camss 1b00020.camss: vfe_put/888 vfe 1 power_count 1 [ 96.025972] qcom-camss 1b00020.camss: vfe_pm_domain_off VFE 1 genpd 0000000012d2fc9c genpd_link 0000000000000000 > > I'm thinking we are calling get() from inside of get(). > > --- > bod