linux-kernel - Re: [Patch v5 2/4] memory: tegra: Add MC error logging on tegra186 onward

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Date:   Wed, 30 Mar 2022 10:32:52 +0530
From:   Ashish Mhetre <amhetre@...dia.com>
To:     Dmitry Osipenko <dmitry.osipenko@...labora.com>,
        Dmitry Osipenko <digetx@...il.com>,
        krzysztof.kozlowski@...onical.com, robh+dt@...nel.org,
        thierry.reding@...il.com, jonathanh@...dia.com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org
Cc:     vdumpa@...dia.com, Snikam@...dia.com
Subject: Re: [Patch v5 2/4] memory: tegra: Add MC error logging on tegra186
 onward



On 3/30/2022 5:21 AM, Dmitry Osipenko wrote:
> External email: Use caution opening links or attachments
> 
> 
> On 3/22/22 20:23, Ashish Mhetre wrote:
>>
>>
>> On 3/19/2022 9:29 PM, Dmitry Osipenko wrote:
>>> External email: Use caution opening links or attachments
>>>
>>>
>>> 16.03.2022 12:25, Ashish Mhetre пишет:
>>>> diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h
>>>> index 92f810c55b43..6f115436e344 100644
>>>> --- a/include/soc/tegra/mc.h
>>>> +++ b/include/soc/tegra/mc.h
>>>> @@ -203,6 +203,8 @@ struct tegra_mc_soc {
>>>>         const struct tegra_smmu_soc *smmu;
>>>>
>>>>         u32 intmask;
>>>> +     u32 int_channel_mask;
>>>
>>> ch_intmask
>>>
>> Okay, I will update,
>>
>>>> +     bool has_addr_hi_reg;
>>>>
>>>>         const struct tegra_mc_reset_ops *reset_ops;
>>>>         const struct tegra_mc_reset *resets;
>>>> @@ -210,6 +212,8 @@ struct tegra_mc_soc {
>>>>
>>>>         const struct tegra_mc_icc_ops *icc_ops;
>>>>         const struct tegra_mc_ops *ops;
>>>> +
>>>> +     int (*get_int_channel)(const struct tegra_mc *mc, int
>>>> *mc_channel);
>>>
>>> This should be a part of tegra_mc_ops.
>>
>> tegra_mc_ops is common for T186, T194 and T234 i.e. all of them use
>> tegra186_mc_ops. get_int_channel function has to be differently
>> implemented for all of these SOCs. So I had put it in tegra_mc_soc.
> 
> Then tegra_mc_ops shouldn't be common anymore?

Yes, that can be done. But the tegra186_mc_ops functions are common for
Tegra186, Tegra194 and Tegra234.
We can separate tegra_mc_ops and keep the callbacks to same tegra186
functions by removing static from them.