Hi Nathan,
On Thu, 2020-07-30 at 18:10 -0700, Nathan Chancellor wrote:
> On Tue, Jul 28, 2020 at 12:09:18PM +0200, Christoph Hellwig wrote:
> > Ok, I found a slight bug that wasn't intended. I wanted to make sure
> > we can always fall back to a lower pool, but got that wrong. Should be
> >
On Fri, 31 Jul 2020 at 06:40, Nathan Chancellor
wrote:
>
> On Tue, Jul 28, 2020 at 12:09:18PM +0200, Christoph Hellwig wrote:
> > Ok, I found a slight bug that wasn't intended. I wanted to make sure
> > we can always fall back to a lower pool, but got that wrong. Should be
> > fixed in the next
On Tue, Jul 28, 2020 at 12:09:18PM +0200, Christoph Hellwig wrote:
> Ok, I found a slight bug that wasn't intended. I wanted to make sure
> we can always fall back to a lower pool, but got that wrong. Should be
> fixed in the next version.
Hi Christoph and Nicolas,
Did a version of that series
On Tue, Jul 28, 2020 at 11:30:32AM +0200, Nicolas Saenz Julienne wrote:
> On Tue, 2020-07-28 at 11:13 +0200, Christoph Hellwig wrote:
> > On Mon, Jul 27, 2020 at 07:56:56PM +0200, Nicolas Saenz Julienne wrote:
> > > Hi Christoph,
> > > thanks for having a look at this!
> > >
> > > On Fri,
On Tue, 2020-07-28 at 11:13 +0200, Christoph Hellwig wrote:
> On Mon, Jul 27, 2020 at 07:56:56PM +0200, Nicolas Saenz Julienne wrote:
> > Hi Christoph,
> > thanks for having a look at this!
> >
> > On Fri, 2020-07-24 at 15:41 +0200, Christoph Hellwig wrote:
> > > Yes, the iommu is an interesting
On Mon, Jul 27, 2020 at 07:56:56PM +0200, Nicolas Saenz Julienne wrote:
> Hi Christoph,
> thanks for having a look at this!
>
> On Fri, 2020-07-24 at 15:41 +0200, Christoph Hellwig wrote:
> > Yes, the iommu is an interesting case, and the current code is
> > wrong for that.
>
> Care to expand on
Hi Christoph,
thanks for having a look at this!
On Fri, 2020-07-24 at 15:41 +0200, Christoph Hellwig wrote:
> Yes, the iommu is an interesting case, and the current code is
> wrong for that.
Care to expand on this? I do get that checking dma_coherent_ok() on memory
that'll later on be mapped
On Fri, Jul 24, 2020 at 09:49:17PM +0530, Amit Pundir wrote:
> On Fri, 24 Jul 2020 at 19:11, Christoph Hellwig wrote:
> >
> > Yes, the iommu is an interesting case, and the current code is
> > wrong for that. Can you try the patch below? It contains a modified
> > version of Nicolas' patch to
On Fri, 24 Jul 2020 at 19:11, Christoph Hellwig wrote:
>
> Yes, the iommu is an interesting case, and the current code is
> wrong for that. Can you try the patch below? It contains a modified
> version of Nicolas' patch to try CMA again for the expansion and a new
> (for now hackish) way to not
Yes, the iommu is an interesting case, and the current code is
wrong for that. Can you try the patch below? It contains a modified
version of Nicolas' patch to try CMA again for the expansion and a new
(for now hackish) way to not apply the addressability check for dma-iommu
allocations.
diff
On Fri, 24 Jul 2020 at 15:06, Nicolas Saenz Julienne
wrote:
>
> Hi Amit,
>
> On Thu, 2020-07-23 at 10:44 +0530, Amit Pundir wrote:
> > Hi Nicolas,
> >
> > Sorry I got stuck on other things yesterday.
>
> No worries :)
>
> > On Tue, 21 Jul 2020 at 21:57, Nicolas Saenz Julienne
>
> [...]
>
> > >
>
Hi Amit,
On Thu, 2020-07-23 at 10:44 +0530, Amit Pundir wrote:
> Hi Nicolas,
>
> Sorry I got stuck on other things yesterday.
No worries :)
> On Tue, 21 Jul 2020 at 21:57, Nicolas Saenz Julienne
[...]
> >
> > Let's get a bigger hammer, I'm just looking for clues here. Can you
> > apply this
Hi Nicolas,
Sorry I got stuck on other things yesterday.
On Tue, 21 Jul 2020 at 21:57, Nicolas Saenz Julienne
wrote:
>
> On Tue, 2020-07-21 at 20:52 +0530, Amit Pundir wrote:
>
> [...]
>
> > > > > Can you try booting *without* my patch and this in the kernel
> > > > > command
> > > > > line:
On Tue, 2020-07-21 at 20:52 +0530, Amit Pundir wrote:
[...]
> > > > Can you try booting *without* my patch and this in the kernel
> > > > command
> > > > line: "cma=16M@0x1-0x2".
> > >
> > > It doesn't boot with this added kernel command line.
> >
> > For the record, this
On Tue, 21 Jul 2020 at 18:15, Nicolas Saenz Julienne
wrote:
>
> On Tue, 2020-07-21 at 17:45 +0530, Amit Pundir wrote:
> > On Tue, 21 Jul 2020 at 16:45, Nicolas Saenz Julienne
> > wrote:
> > > On Tue, 2020-07-21 at 14:24 +0530, Amit Pundir wrote:
> > > > On Tue, 21 Jul 2020 at 14:09, Nicolas
On Tue, 2020-07-21 at 17:45 +0530, Amit Pundir wrote:
> On Tue, 21 Jul 2020 at 16:45, Nicolas Saenz Julienne
> wrote:
> > On Tue, 2020-07-21 at 14:24 +0530, Amit Pundir wrote:
> > > On Tue, 21 Jul 2020 at 14:09, Nicolas Saenz Julienne
> > > wrote:
> > > > Hi Amit,
> > > > > Hi Nicolas,
> > > > >
On Tue, 21 Jul 2020 at 17:07, Nicolas Saenz Julienne
wrote:
>
> On Tue, 2020-07-21 at 13:28 +0200, Christoph Hellwig wrote:
> > On Tue, Jul 21, 2020 at 01:15:23PM +0200, Nicolas Saenz Julienne
> > wrote:
> > > I'm at loss at what could be failing here. Your device should be
> > > able
> > > to
On Tue, 21 Jul 2020 at 16:45, Nicolas Saenz Julienne
wrote:
>
> On Tue, 2020-07-21 at 14:24 +0530, Amit Pundir wrote:
> > On Tue, 21 Jul 2020 at 14:09, Nicolas Saenz Julienne
> > wrote:
> > > Hi Amit,
> > > > Hi Nicolas,
> > > >
> > > > I see a boot regression with this commit d9765e41d8e9
On Tue, 2020-07-21 at 13:28 +0200, Christoph Hellwig wrote:
> On Tue, Jul 21, 2020 at 01:15:23PM +0200, Nicolas Saenz Julienne
> wrote:
> > I'm at loss at what could be failing here. Your device should be
> > able
> > to address the whole 8GB memory space, which AFAIK is the max
> > available
> >
On Tue, Jul 21, 2020 at 01:15:23PM +0200, Nicolas Saenz Julienne wrote:
> I'm at loss at what could be failing here. Your device should be able
> to address the whole 8GB memory space, which AFAIK is the max available
> on that smartphone family. But maybe the device-tree is lying, who
> knows...
On Tue, 2020-07-21 at 14:24 +0530, Amit Pundir wrote:
> On Tue, 21 Jul 2020 at 14:09, Nicolas Saenz Julienne
> wrote:
> > Hi Amit,
> > > Hi Nicolas,
> > >
> > > I see a boot regression with this commit d9765e41d8e9 "dma-pool:
> > > Do not allocate pool memory from CMA" on my Xiaomi Poco F1
> > >
On Tue, 21 Jul 2020 at 14:09, Nicolas Saenz Julienne
wrote:
>
> Hi Amit,
>
> On Tue, 2020-07-21 at 12:51 +0530, Amit Pundir wrote:
> > On Wed, 8 Jul 2020 at 22:43, Nicolas Saenz Julienne
> > wrote:
> > > There is no guarantee to CMA's placement, so allocating a zone
> > > specific
> > > atomic
Hi Amit,
On Tue, 2020-07-21 at 12:51 +0530, Amit Pundir wrote:
> On Wed, 8 Jul 2020 at 22:43, Nicolas Saenz Julienne
> wrote:
> > There is no guarantee to CMA's placement, so allocating a zone
> > specific
> > atomic pool from CMA might return memory from a completely
> > different
> > memory
On Wed, 8 Jul 2020 at 22:43, Nicolas Saenz Julienne
wrote:
>
> There is no guarantee to CMA's placement, so allocating a zone specific
> atomic pool from CMA might return memory from a completely different
> memory zone. So stop using it.
>
> Fixes: c84dc6e68a1d ("dma-pool: add additional
On Wed, 8 Jul 2020, Nicolas Saenz Julienne wrote:
> There is no guarantee to CMA's placement, so allocating a zone specific
> atomic pool from CMA might return memory from a completely different
> memory zone. So stop using it.
>
> Fixes: c84dc6e68a1d ("dma-pool: add additional coherent pools to
Hi,
On 7/8/20 11:49 AM, Nicolas Saenz Julienne wrote:
There is no guarantee to CMA's placement, so allocating a zone specific
atomic pool from CMA might return memory from a completely different
memory zone. So stop using it.
Fixes: c84dc6e68a1d ("dma-pool: add additional coherent pools to map
There is no guarantee to CMA's placement, so allocating a zone specific
atomic pool from CMA might return memory from a completely different
memory zone. So stop using it.
Fixes: c84dc6e68a1d ("dma-pool: add additional coherent pools to map to gfp
mask")
Reported-by: Jeremy Linton
On Wed, Jul 08, 2020 at 06:49:39PM +0200, Nicolas Saenz Julienne wrote:
> There is no guarantee to CMA's placement, so allocating a zone specific
> atomic pool from CMA might return memory from a completely different
> memory zone. So stop using it.
>
> Fixes: c84dc6e68a1d ("dma-pool: add
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