From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: barnabas.czeman@mainlining.org
Cc: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>,
Robert Foss <rfoss@kernel.org>, Todor Tomov <todor.too@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Hans Verkuil <hverkuil@xs4all.nl>,
linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org,
Yassine Oudjana <y.oudjana@protonmail.com>
Subject: Re: [PATCH v2] media: qcom: camss: fix VFE pm domain off
Date: Mon, 2 Dec 2024 23:10:27 +0000 [thread overview]
Message-ID: <1d3650f9-fe4d-4972-968a-aaab6fed1044@linaro.org> (raw)
In-Reply-To: <02282c0d493153c633e7eccf5559452a@mainlining.org>
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 ?
I'm thinking we are calling get() from inside of get().
---
bod
next prev parent reply other threads:[~2024-12-02 23:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-28 19:39 [PATCH v2] media: qcom: camss: fix VFE pm domain off Barnabás Czémán
2024-11-29 8:48 ` Vladimir Zapolskiy
2024-11-29 11:06 ` Bryan O'Donoghue
2024-11-29 11:20 ` Vladimir Zapolskiy
2024-11-29 11:23 ` Bryan O'Donoghue
2024-11-29 11:44 ` barnabas.czeman
2024-11-29 12:25 ` Bryan O'Donoghue
2024-11-29 13:46 ` barnabas.czeman
2024-11-29 22:08 ` Bryan O'Donoghue
2024-11-29 22:45 ` barnabas.czeman
2024-11-29 23:07 ` Bryan O'Donoghue
2024-11-29 23:52 ` barnabas.czeman
2024-11-30 21:48 ` Bryan O'Donoghue
2024-11-30 22:58 ` barnabas.czeman
2024-12-02 23:10 ` Bryan O'Donoghue [this message]
2024-12-03 1:02 ` barnabas.czeman
2024-12-03 16:49 ` Bryan O'Donoghue
2024-12-03 21:41 ` barnabas.czeman
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