From: David Vrabel <david.vrabel@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: <x86@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
<xen-devel@lists.xenproject.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Ingo Molnar <mingo@redhat.com>, <linux-kernel@vger.kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [Xen-devel] [PATCH 2/3] x86: allow dma_get_required_mask() to be overridden
Date: Thu, 13 Nov 2014 10:30:11 +0000 [thread overview]
Message-ID: <54648833.6020407@citrix.com> (raw)
In-Reply-To: <546495280200007800047203@mail.emea.novell.com>
On 13/11/14 10:25, Jan Beulich wrote:
>>>> On 12.11.14 at 16:25, <david.vrabel@citrix.com> wrote:
>> --- a/arch/x86/include/asm/device.h
>> +++ b/arch/x86/include/asm/device.h
>> @@ -13,4 +13,6 @@ struct dev_archdata {
>> struct pdev_archdata {
>> };
>>
>> +#define ARCH_HAS_DMA_GET_REQUIRED_MASK
>
> Is there a particular reason you put this here rather than in
> dma-mapping.h?
I was because asm/dma-mapping is included too late for it to work, but
looking at the current code it looks like it ought to work.
David
next prev parent reply other threads:[~2014-11-13 10:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-12 15:25 [PATCHv2 0/3]: dma,x86,xen: reduce SWIOTLB usage in Xen guests David Vrabel
2014-11-12 15:25 ` [PATCH 1/3] dma,ia64: add dma_get_required_mask_from_max_pfn() David Vrabel
2014-11-14 15:11 ` [Xen-devel] [PATCH 1/3] dma, ia64: " Stefano Stabellini
2014-11-12 15:25 ` [PATCH 2/3] x86: allow dma_get_required_mask() to be overridden David Vrabel
2014-11-13 10:25 ` [Xen-devel] " Jan Beulich
2014-11-13 10:30 ` David Vrabel [this message]
2014-11-13 10:32 ` Jan Beulich
2014-11-14 15:19 ` Stefano Stabellini
2014-11-12 15:25 ` [PATCH 3/3] x86/xen: use the maximum MFN to calculate the required DMA mask David Vrabel
2014-11-12 15:55 ` [Xen-devel] " Jan Beulich
2014-11-12 16:59 ` David Vrabel
2014-11-12 17:18 ` Jan Beulich
2014-11-13 9:57 ` Jan Beulich
2014-11-13 10:38 ` Andrew Cooper
2014-11-13 10:53 ` Jan Beulich
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