Re: [PATCH v2 7/9] perf cs-etm: Create ETE decoder

[James Clark <james.clark@arm.com>]

On 24/08/2021 09:33, Leo Yan wrote:
>> +static void cs_etm_decoder__gen_ete_config(struct cs_etm_trace_params *params,
>> +					   ocsd_ete_cfg *config)
>> +{
>> +	config->reg_configr = params->ete.reg_configr;
>> +	config->reg_traceidr = params->ete.reg_traceidr;
>> +	config->reg_idr0 = params->ete.reg_idr0;
>> +	config->reg_idr1 = params->ete.reg_idr1;
>> +	config->reg_idr2 = params->ete.reg_idr2;
>> +	config->reg_idr8 = params->ete.reg_idr8;
>> +	config->reg_devarch = params->ete.reg_devarch;
>> +	config->arch_ver = ARCH_AA64;
> Just a nitpick: if we connect with patch 02, it implement function
> cs_etm_decoder__get_etmv4_arch_ver().  We can extend it to a more
> general function cs_etm_decoder__get_arch_ver(); this can allow us to
> have a central place to calculate 'arch_ver' for different archs.
> 
> I understand your patch doesn't want to mix things between ETMv4 and
> ETE, either way is okay for me:

Hi Leo,

Yes that was one of the previous comments from Mike that the logic only applied
to ETMv4 so I made it v4 specific. The other arch_vers are fixed at the moment.
If we get a new one that needs changing depending on some config we can try to
add a generic function.

> 
> Reviewed-by: Leo Yan <leo.yan@linaro.org>
>