linux-kernel - Re: [PATCH v4 2/8] iommu/arm-smmu-v3: Replace s1_cfg with cdtab

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Date:   Fri, 4 Aug 2023 12:25:43 -0700
From:   Nicolin Chen <nicolinc@...dia.com>
To:     Michael Shavit <mshavit@...gle.com>
CC:     <iommu@...ts.linux.dev>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <will@...nel.org>,
        <robin.murphy@....com>, <jgg@...dia.com>,
        <jean-philippe@...aro.org>
Subject: Re: [PATCH v4 2/8] iommu/arm-smmu-v3: Replace s1_cfg with cdtab_cfg

On Thu, Aug 03, 2023 at 12:32:30AM +0800, Michael Shavit wrote:
 
> Remove struct arm_smmu_s1_cfg. This is really just a CD table with a
> bit of extra information. Enhance the existing CD table structure,
> struct arm_smmu_ctx_desc_cfg, with max_cds_bits and replace all usages
> of arm_smmu_s1_cfg with arm_smmu_ctx_desc_cfg.
> 
> Compute the other values that were stored in s1cfg directly from
> existing arm_smmu_ctx_desc_cfg.
> 
> For clarity, use the name "cd_table" for the variables pointing to
> arm_smmu_ctx_desc_cfg in the new code instead of cdcfg. A later patch
> will make this fully consistent.
> 
> Signed-off-by: Michael Shavit <mshavit@...gle.com>
> Reviewed-by: Jason Gunthorpe <jgg@...dia.com>

Reviewed-by: Nicolin Chen <nicolinc@...dia.com>