[dpdk-dev] [PATCH v8 1/2] config/arm: select most suitable -march for kunpeng soc

[Honnappa Nagarahalli]

<snip>

> 
> 24/05/2021 15:23, Chengwen Feng:
> > Currently, the soc_kunpeng930 declares '-march=armv8.2-a+crypto+sve',
> > but some compiler doesn't recognize the march because it doesn't
> > support sve.
> >
> > To solve this bug we use the following scheme:
> > 1. Define 'march_base' tuple which defines support march, it should
> > arrange from lower to higher.
> > e.g. 'march_base': ['-march=armv8.1-a', '-march=armv8.2-a'] 2. Define
> > 'march_feature' tuple which defines support feature.
> > e.g. 'march_feature': ['crypto', 'sve']
> > Note: If user defined 'march_feature', it also needs to define a valid
> > 'march_base' because 'march_feature' depends on 'march_base' when
> > checking validity.
> > 3. Select the most suitable march+feature combination based on
> > 'march_base' and 'march_feature' tuples.
> > 4. Use the selected march+feature combination as the default
> > machine_args.
> >
> > Fixes: 7cf32a22b240 ("config/arm: add Hisilicon kunpeng")
> >
> > Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
> 
> This patch is still not accepted.
> Arm maintainers, what is missing?
> Is it rejected?
Juraj is working on a more generalized solution. Not sure how it will turn out. It would be good to wait.

> 
> 
>