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Message-ID: <dab10177d5fa144ad271b4efb59fe3e5dc61b56d.camel@gmail.com>
Subject: Re: [PATCH v6 10/11] powerpc/pseries/iommu: Make use of DDW for
 indirect mapping
From:   Leonardo =?ISO-8859-1?Q?Br=E1s?= <leobras.c@gmail.com>
To:     Frederic Barrat <fbarrat@linux.ibm.com>,
        Alexey Kardashevskiy <aik@ozlabs.ru>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        David Gibson <david@gibson.dropbear.id.au>,
        Nicolin Chen <nicoleotsuka@gmail.com>,
        kernel test robot <lkp@intel.com>
Cc:     linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Date:   Fri, 27 Aug 2021 14:53:47 -0300
In-Reply-To: <3d79480a-20df-ea1a-e17f-8bf2c8a8a2be@linux.ibm.com>
References: <20210817063929.38701-1-leobras.c@gmail.com>
         <20210817063929.38701-11-leobras.c@gmail.com>
         <3d79480a-20df-ea1a-e17f-8bf2c8a8a2be@linux.ibm.com>
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Hello Fred,

On Fri, 2021-08-27 at 19:06 +0200, Frederic Barrat wrote:
> 
> I think it looks ok now as it was mostly me who was misunderstanding
> one 
> part of the previous iteration.
> Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
> 

Thank you for reviewing this series!

> Sorry for the late review, I was enjoying some time off. And thanks
> for 
> that series, I believe it should help with those bugs complaining
> about 
> lack of DMA space. It was also very educational for me, thanks to you
> and Alexey for your detailed answers.

Working on this series caused me to learn a lot about how DMA and IOMMU
works in Power, and it was a great experience. Thanks to Alexey who
helped and guided me through this!

Best regards,
Leonardo Bras