On Thursday 01 September 2011 16:02:35 Ohad Ben-Cohen wrote:
> On Thu, Sep 1, 2011 at 4:59 PM, Laurent Pinchart
>
> wrote:
> > It looks good to me.
>
> Thanks.
>
> > I haven't tested it though.
>
> I did, but I always get aligned buffers so my testing is a bit moot. I
> can't see how unmap cou
On Thu, Sep 1, 2011 at 4:59 PM, Laurent Pinchart
wrote:
> It looks good to me.
Thanks.
> I haven't tested it though.
I did, but I always get aligned buffers so my testing is a bit moot. I
can't see how unmap could work without this patch, though, so I'll
squash this and re-post.
--
To unsubscri
Hi Ohad,
On Thursday 01 September 2011 13:47:26 Ohad Ben-Cohen wrote:
> On Wed, Aug 31, 2011 at 1:52 PM, Ohad Ben-Cohen wrote:
> > From: Laurent Pinchart
> >
> > omap_iovmm requires page-aligned buffers, and that sometimes causes
> > omap3isp failures (i.e. whenever the buffer passed from users
On Thu, Sep 01, 2011 at 09:31:13AM -0400, Laurent Pinchart wrote:
> Hi Ohad,
>
> On Thursday 01 September 2011 13:47:26 Ohad Ben-Cohen wrote:
> > On Wed, Aug 31, 2011 at 1:52 PM, Ohad Ben-Cohen wrote:
> > > From: Laurent Pinchart
> > >
> > > omap_iovmm requires page-aligned buffers, and that so
Hi Ohad,
On Thursday 01 September 2011 13:47:26 Ohad Ben-Cohen wrote:
> On Wed, Aug 31, 2011 at 1:52 PM, Ohad Ben-Cohen wrote:
> > From: Laurent Pinchart
> >
> > omap_iovmm requires page-aligned buffers, and that sometimes causes
> > omap3isp failures (i.e. whenever the buffer passed from users
On Wed, Aug 31, 2011 at 1:52 PM, Ohad Ben-Cohen wrote:
> From: Laurent Pinchart
>
> omap_iovmm requires page-aligned buffers, and that sometimes causes
> omap3isp failures (i.e. whenever the buffer passed from userspace is not
> page-aligned).
>
> Remove this limitation by rounding the address of
On Wed, Aug 31, 2011 at 12:56:26PM -0400, Laurent Pinchart wrote:
> True, but if we implement address rounding transparently in the IOMMU layer
> Ohad's concern can be valid, depending on whether the device is trusted. If
> we
> decide to push address rounding to the drivers that decision can be
Hi Laurent, Joerg,
On Wed, Aug 31, 2011 at 7:56 PM, Laurent Pinchart
wrote:
> On Wednesday 31 August 2011 15:06:42 Roedel, Joerg wrote:
>> Do you mean the parts of the pages you map to the device that are not in
>> the requested range (basically everything before offset and all after
>> size)?
>>
Hi Joerg,
On Wednesday 31 August 2011 15:06:42 Roedel, Joerg wrote:
> On Wed, Aug 31, 2011 at 06:52:08AM -0400, Ohad Ben-Cohen wrote:
> > On Mon, Aug 29, 2011 at 10:36 PM, Ohad Ben-Cohen wrote:
> > > From: Laurent Pinchart
> > >
> > > omap_iovmm requires page-aligned buffers, and that sometimes
On Wed, Aug 31, 2011 at 06:52:08AM -0400, Ohad Ben-Cohen wrote:
> On Mon, Aug 29, 2011 at 10:36 PM, Ohad Ben-Cohen wrote:
> > From: Laurent Pinchart
> >
> > omap_iovmm requires page-aligned buffers, and that sometimes causes
> > omap3isp failures (i.e. whenever the buffer passed from userspace is
Hi Ohad,
On Wednesday 31 August 2011 12:52:08 Ohad Ben-Cohen wrote:
> On Mon, Aug 29, 2011 at 10:36 PM, Ohad Ben-Cohen wrote:
> > From: Laurent Pinchart
> >
> > omap_iovmm requires page-aligned buffers, and that sometimes causes
> > omap3isp failures (i.e. whenever the buffer passed from usersp
On Mon, Aug 29, 2011 at 10:36 PM, Ohad Ben-Cohen wrote:
> From: Laurent Pinchart
>
> omap_iovmm requires page-aligned buffers, and that sometimes causes
> omap3isp failures (i.e. whenever the buffer passed from userspace is not
> page-aligned).
>
> Remove this limitation by rounding the address o
From: Laurent Pinchart
omap_iovmm requires page-aligned buffers, and that sometimes causes
omap3isp failures (i.e. whenever the buffer passed from userspace is not
page-aligned).
Remove this limitation by rounding the address of the first page entry
down, and adding the offset back to the device
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