Re: [PATCH v7 1/3] iommu/arm-smmu: add NVIDIA implementation for dual ARM MMU-500 usage

From: Nicolin Chen
Date: Mon Jun 29 2020 - 19:52:59 EST


On Mon, Jun 29, 2020 at 10:49:31PM +0000, Krishna Reddy wrote:
> >> + if (!nvidia_smmu->bases[0])
> >> + nvidia_smmu->bases[0] = smmu->base;
> >> +
> >> + return nvidia_smmu->bases[inst] + (page << smmu->pgshift); }
>
> >Not critical -- just a nit: why not put the bases[0] in init()?
>
> smmu->base is not available during nvidia_smmu_impl_init() call. It is set afterwards in arm-smmu.c.
> It can't be avoided without changing the devm_ioremap() and impl_init() call order in arm-smmu.c.

I see...just checked arm_ssmu_impl_init().