linux-kernel - Re: [PATCH] soc: qcom: qcom_stats: Add DSPs and apss subsystem stats

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Date: Thu, 15 Feb 2024 16:54:12 +0530
From: "Maulik Shah (mkshah)" <quic_mkshah@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@...aro.org>,
        Bjorn Andersson
	<andersson@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] soc: qcom: qcom_stats: Add DSPs and apss subsystem stats

On 2/15/2024 3:24 PM, Konrad Dybcio wrote:
> On 15.02.2024 10:23, Maulik Shah wrote:
>> Add SMEM items for compute, general purpose DSPs and application processor
>> subsystem stats.
>>
>> Signed-off-by: Maulik Shah <quic_mkshah@...cinc.com>
>> ---
>>   drivers/soc/qcom/qcom_stats.c | 4 ++++
>>   1 file changed, 4 insertions(+)
>>
>> diff --git a/drivers/soc/qcom/qcom_stats.c b/drivers/soc/qcom/qcom_stats.c
>> index 0216fc24f2ca..c429d5154aae 100644
>> --- a/drivers/soc/qcom/qcom_stats.c
>> +++ b/drivers/soc/qcom/qcom_stats.c
>> @@ -35,11 +35,15 @@ static const struct subsystem_data subsystems[] = {
>>   	{ "wpss", 605, 13 },
>>   	{ "adsp", 606, 2 },
>>   	{ "cdsp", 607, 5 },
>> +	{ "cdsp1", 607, 12 },
>> +	{ "gpdsp0", 607, 17 },
>> +	{ "gpdsp1", 607, 18 },
>>   	{ "slpi", 608, 3 },
>>   	{ "gpu", 609, 0 },
>>   	{ "display", 610, 0 },
>>   	{ "adsp_island", 613, 2 },
>>   	{ "slpi_island", 613, 3 },
>> +	{ "apss", 631, QCOM_SMEM_HOST_ANY },
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> 
Thanks for the review.

> Although, giving it a spin on 8280, it's not there.. It is there
> on 8450, but the reported count seems to coincide with cpuidle..
> roughly min{/sys/bus/cpu/devices/cpu*/cpuidle/state0/usage).
> 
> Konrad

yes apss stats should be available from sm8450 onward and count should 
(not necessarily) coincide with 
/sys/kernel/debug/pm_genpd/power-domain-cluster/idle_states, s1 usage 
count on sm8450.

DSP stats for gdsp0/gdsp1/cdsp1 are available in sa8775p.

Thanks,
Maulik