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Message-ID: <e9edda01a21f7144cf4781132df070feea04f767.camel@gmail.com>
Subject: Re: [PATCH v2 5/6] powerpc/pseries/iommu: Make use of DDW even if
 it does not map the partition
From:   Leonardo Bras <leobras.c@gmail.com>
To:     Alexey Kardashevskiy <aik@ozlabs.ru>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Thiago Jung Bauermann <bauerman@linux.ibm.com>,
        Ram Pai <linuxram@us.ibm.com>
Cc:     linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Date:   Fri, 03 Jul 2020 03:27:05 -0300
In-Reply-To: <2c5dc8d2-f379-5a5f-844a-f4eea233f265@ozlabs.ru>
References: <20200624062411.367796-1-leobras.c@gmail.com>
         <20200624062411.367796-6-leobras.c@gmail.com>
         <18df09c0-ef83-a0d8-1143-1cb4d50bf6b7@ozlabs.ru>
         <0e8bcc38614ec80c7816c07dd4dc70854c2b901d.camel@gmail.com>
         <0c3de45dfb612745aa2ee4126b3935303d8e8704.camel@gmail.com>
         <2c5dc8d2-f379-5a5f-844a-f4eea233f265@ozlabs.ru>
Organization: IBM
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On Thu, 2020-07-02 at 10:31 +1000, Alexey Kardashevskiy wrote:
> 
> On 02/07/2020 09:48, Leonardo Bras wrote:
> > On Wed, 2020-07-01 at 16:57 -0300, Leonardo Bras wrote:
> > > > It is not necessarily "direct" anymore as the name suggests, you may
> > > > want to change that. DMA64_PROPNAME, may be. Thanks,
> > > > 
> > > 
> > > Yeah, you are right.
> > > I will change this for next version, also changing the string name to
> > > reflect this.
> > > 
> > > -#define DIRECT64_PROPNAME "linux,direct64-ddr-window-info"
> > > +#define DMA64_PROPNAME "linux,dma64-ddr-window-info"
> > > 
> > > Is that ok?
> > > 
> > > Thank you for helping!
> > 
> > In fact, there is a lot of places in this file where it's called direct
> > window. Should I replace everything?
> > Should it be in a separated patch?
> 
> If it looks simple and you write a nice commit log explaining all that
> and why you are not reusing the existing ibm,dma-window property (to
> provide a clue what "reset" will reset to? is there any other reason?)
> for that - sure, do it :)
> 

v3 available here:
http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=187348&state=%2A&archive=both

Best regards,
Leonardo