From: Christoph Hellwig <hch@infradead.org>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>,
kvm@vger.kernel.org, linux-s390@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
Vasily Gorbik <gor@linux.ibm.com>,
Petr Tesarik <ptesarik@suse.cz>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>
Subject: Re: [PATCH 1/1] s390/dma: provide proper ARCH_ZONE_DMA_BITS value
Date: Tue, 23 Jul 2019 08:52:49 -0700 [thread overview]
Message-ID: <20190723155249.GA30643@infradead.org> (raw)
In-Reply-To: <20190723143226.6d929d7a.pasic@linux.ibm.com>
On Tue, Jul 23, 2019 at 02:32:26PM +0200, Halil Pasic wrote:
> On Fri, 19 Jul 2019 13:01:30 +0200
> Halil Pasic <pasic@linux.ibm.com> wrote:
>
> > > > diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h
> > > > index 6f26f35d4a71..3b0329665b13 100644
> > > > --- a/arch/s390/include/asm/dma.h
> > > > +++ b/arch/s390/include/asm/dma.h
> > > > @@ -10,6 +10,7 @@
> > > > * by the 31 bit heritage.
> > > > */
> > > > #define MAX_DMA_ADDRESS 0x80000000
> > > > +#define ARCH_ZONE_DMA_BITS 31
> > >
> > > powerpc has this in arch/powerpc/include/asm/page.h. This really
> > > should be consistently defined in the same header file across
> > > architectures.
> > >
> > > Christoph, what is the preferred header file for this definition?
>
> ping
>
> Christoph could you please answer Heiko's question, so I can do my
> respin.
page.h is fine for now. dma.h is odd for sure as it is for legacy
ISA DMA only.
prev parent reply other threads:[~2019-07-23 15:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-18 17:21 [PATCH 1/1] s390/dma: provide proper ARCH_ZONE_DMA_BITS value Halil Pasic
2019-07-18 20:54 ` Petr Tesarik
2019-07-19 6:32 ` Heiko Carstens
2019-07-19 11:01 ` Halil Pasic
2019-07-23 12:32 ` Halil Pasic
2019-07-23 15:52 ` Christoph Hellwig [this message]
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