On 7/8/2015 5:11 PM, Bjorn Helgaas wrote:
[+cc Rafael]
On Tue, Jul 07, 2015 at 01:14:27PM -0400, Mark Hounschell wrote:
On 07/07/2015 11:15 AM, Bjorn Helgaas wrote:
On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
Most currently available hardware doesn't allow reads but will
On 07/08/2015 11:11 AM, Bjorn Helgaas wrote:
[+cc Rafael]
On Tue, Jul 07, 2015 at 01:14:27PM -0400, Mark Hounschell wrote:
On 07/07/2015 11:15 AM, Bjorn Helgaas wrote:
On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
Most currently available hardware doesn't allow reads but wi
[+cc Rafael]
On Tue, Jul 07, 2015 at 01:14:27PM -0400, Mark Hounschell wrote:
> On 07/07/2015 11:15 AM, Bjorn Helgaas wrote:
> >On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
> >>Most currently available hardware doesn't allow reads but will allow
> >>writes on PCIe peer-to-peer
On Tue, 2015-07-07 at 15:17 -0400, Mark Hounschell wrote:
> On 07/07/2015 01:28 PM, Alex Williamson wrote:
> > On Tue, 2015-07-07 at 13:14 -0400, Mark Hounschell wrote:
> >> Hi Bjorn.
> >>
> >> On 07/07/2015 11:15 AM, Bjorn Helgaas wrote:
> >>> [+cc Alex]
> >>>
> >>> Hi Mark,
> >>>
> >>> On Wed, Ma
On 07/07/2015 01:28 PM, Alex Williamson wrote:
On Tue, 2015-07-07 at 13:14 -0400, Mark Hounschell wrote:
Hi Bjorn.
On 07/07/2015 11:15 AM, Bjorn Helgaas wrote:
[+cc Alex]
Hi Mark,
On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
Most currently available hardware doesn't allo
On Tue, 2015-07-07 at 13:14 -0400, Mark Hounschell wrote:
> Hi Bjorn.
>
> On 07/07/2015 11:15 AM, Bjorn Helgaas wrote:
> > [+cc Alex]
> >
> > Hi Mark,
> >
> > On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
> >> Most currently available hardware doesn't allow reads but will allow
Hi Bjorn.
On 07/07/2015 11:15 AM, Bjorn Helgaas wrote:
[+cc Alex]
Hi Mark,
On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
Most currently available hardware doesn't allow reads but will allow
writes on PCIe peer-to-peer transfers. All current AMD chipsets are
this way. I'm pr
On Tue, 2015-07-07 at 11:16 -0500, Bjorn Helgaas wrote:
> On Tue, Jul 7, 2015 at 10:41 AM, Alex Williamson
> wrote:
> > On Tue, 2015-07-07 at 10:15 -0500, Bjorn Helgaas wrote:
> >> [+cc Alex]
> >>
> >> Hi Mark,
> >>
> >> On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
> >> > Most
On Tue, Jul 7, 2015 at 10:41 AM, Alex Williamson
wrote:
> On Tue, 2015-07-07 at 10:15 -0500, Bjorn Helgaas wrote:
>> [+cc Alex]
>>
>> Hi Mark,
>>
>> On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
>> > Most currently available hardware doesn't allow reads but will allow
>> > write
On Tue, 2015-07-07 at 10:15 -0500, Bjorn Helgaas wrote:
> [+cc Alex]
>
> Hi Mark,
>
> On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
> > Most currently available hardware doesn't allow reads but will allow
> > writes on PCIe peer-to-peer transfers. All current AMD chipsets are
>
[+cc Alex]
Hi Mark,
On Wed, May 20, 2015 at 08:11:17AM -0400, Mark Hounschell wrote:
> Most currently available hardware doesn't allow reads but will allow
> writes on PCIe peer-to-peer transfers. All current AMD chipsets are
> this way. I'm pretty sure all Intel chipsets are this way also. What
hn Hubbard;
> jgli...@redhat.com
> Subject: Re: [PATCH v2 4/7] DMA-API: Add dma_(un)map_resource()
> documentation
>
> On Mon, May 18, 2015 at 01:25:01PM -0500, wda...@nvidia.com wrote:
> > From: Will Davis
> >
> > Add references to both the general API documentation
On Mon, May 18, 2015 at 01:25:01PM -0500, wda...@nvidia.com wrote:
> From: Will Davis
>
> Add references to both the general API documentation as well as the HOWTO.
>
> Signed-off-by: Will Davis
> ---
> Documentation/DMA-API-HOWTO.txt | 39 +--
> Documentati
On Wed, May 20, 2015 at 03:15:59PM -0400, Mark Hounschell wrote:
> On 05/20/2015 01:30 PM, William Davis wrote:
> >In an IOMMU environment, the DMA ops would be one of the IOMMU
> >implementations, so these APIs would create a mapping for the peer device
> >resource, even if it's on the same bus. W
d; jgli...@redhat.com; konrad.w...@oracle.com; Jonathan Corbet;
> David S. Miller
> Subject: Re: [PATCH v2 4/7] DMA-API: Add dma_(un)map_resource() documentation
>
> >>
> >> I currently just do
> >>
> >> page = virt_to_page(__va(bus_address)
; John Hubbard; jgli...@redhat.com;
konrad.w...@oracle.com; Jonathan Corbet; David S. Miller
Subject: Re: [PATCH v2 4/7] DMA-API: Add dma_(un)map_resource()
documentation
On 05/20/2015 01:30 PM, William Davis wrote:
-Original Message-
From: Mark Hounschell [mailto:ma...@compro.net]
Sent
jgli...@redhat.com;
> konrad.w...@oracle.com; Jonathan Corbet; David S. Miller
> Subject: Re: [PATCH v2 4/7] DMA-API: Add dma_(un)map_resource()
> documentation
>
> On 05/20/2015 01:30 PM, William Davis wrote:
> >
> >
> >> -Original Message-
> >
; John Hubbard; jgli...@redhat.com;
konrad.w...@oracle.com; Jonathan Corbet; David S. Miller
Subject: Re: [PATCH v2 4/7] DMA-API: Add dma_(un)map_resource()
documentation
On 05/19/2015 07:43 PM, Bjorn Helgaas wrote:
[+cc Dave, Jonathan]
On Mon, May 18, 2015 at 01:25:01PM -0500, wda...@nvidia.com
jgli...@redhat.com;
> konrad.w...@oracle.com; Jonathan Corbet; David S. Miller
> Subject: Re: [PATCH v2 4/7] DMA-API: Add dma_(un)map_resource()
> documentation
>
> On 05/19/2015 07:43 PM, Bjorn Helgaas wrote:
> > [+cc Dave, Jonathan]
> >
> > On Mon, May 18, 2015 at 0
On 05/19/2015 07:43 PM, Bjorn Helgaas wrote:
[+cc Dave, Jonathan]
On Mon, May 18, 2015 at 01:25:01PM -0500, wda...@nvidia.com wrote:
From: Will Davis
Add references to both the general API documentation as well as the HOWTO.
Signed-off-by: Will Davis
---
Documentation/DMA-API-HOWTO.txt |
[+cc Dave, Jonathan]
On Mon, May 18, 2015 at 01:25:01PM -0500, wda...@nvidia.com wrote:
> From: Will Davis
>
> Add references to both the general API documentation as well as the HOWTO.
>
> Signed-off-by: Will Davis
> ---
> Documentation/DMA-API-HOWTO.txt | 39
From: Will Davis
Add references to both the general API documentation as well as the HOWTO.
Signed-off-by: Will Davis
---
Documentation/DMA-API-HOWTO.txt | 39 +--
Documentation/DMA-API.txt | 36 +++-
2 files changed, 68
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