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Message-ID: <57a52e19-e121-6082-a4d8-f58ade353782@marcan.st>
Date:   Thu, 5 Jan 2023 14:16:27 +0900
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Subject: Re: [PATCH 6/7] iommu: dart: Support different variants with
 different registers
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To:     Sven Peter <sven@svenpeter.dev>, Joerg Roedel <joro@8bytes.org>,
        Will Deacon <will@kernel.org>,
        Robin Murphy <robin.murphy@arm.com>
Cc:     Alyssa Rosenzweig <alyssa@rosenzweig.io>,
        Janne Grunau <j@jannau.net>, Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        devicetree@vger.kernel.org, iommu@lists.linux.dev,
        asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org
References: <20230104110013.24738-1-marcan@marcan.st>
 <20230104110013.24738-7-marcan@marcan.st>
 <228a80d4-752b-42ae-84b4-47197ec82c24@app.fastmail.com>
From:   Hector Martin <marcan@marcan.st>
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On 2023/01/04 22:43, Sven Peter wrote:
> On Wed, Jan 4, 2023, at 12:00, Hector Martin wrote:
>> +	u64 enable_streams;
>> +	u64 disable_streams;
> I don't think disable_streams is used anywhere. I assume you just left it in
> here to document it?

Yeah, we don't use this field ever, so we might as well drop it. I'll
leave the #define for T8110 in though, as documentation.

>> +	u64 ttbr;
>> +	u64 ttbr_valid;
>> +	u64 ttbr_addr_off;
> 
> This name confused me a bit since off sounds like offset to me while
> this is actually another shift. Can't really think of a better name
> right now though. I'd at least a comment here to describe it.

How about `ttbr_addr_field_shift`?

- Hector