On Fri, Feb 02, 2024 at 12:15:40PM -0400, Jason Gunthorpe wrote:
> > Yes looks like a race of some sort. Adding a bit of debug also makes the
> > issue go away so difficult to see what is happening.
>
> I'm wondering if it is racing with iommu driver probing? I looked but
> didn't notice
On Fri, Feb 02, 2024 at 03:56:52PM +, Jon Hunter wrote:
>
> On 02/02/2024 14:35, Jason Gunthorpe wrote:
> > On Fri, Feb 02, 2024 at 10:40:36AM +, Jon Hunter wrote:
> >
> > > > But, what is the actual log output you see, is it -EEXIST?
> > >
> > > I see ...
> > >
> > > ERR KERN host1x
On 02/02/2024 14:35, Jason Gunthorpe wrote:
On Fri, Feb 02, 2024 at 10:40:36AM +, Jon Hunter wrote:
But, what is the actual log output you see, is it -EEXIST?
I see ...
ERR KERN host1x drm: iommu configuration for device failed with -ENOENT
So that shouldn't happen in you case as
On Fri, Feb 02, 2024 at 10:40:36AM +, Jon Hunter wrote:
> > But, what is the actual log output you see, is it -EEXIST?
>
> I see ...
>
> ERR KERN host1x drm: iommu configuration for device failed with -ENOENT
So that shouldn't happen in you case as far as I can tell, the device
is
On 01/02/2024 20:02, Jason Gunthorpe wrote:
On Thu, Feb 01, 2024 at 07:35:24PM +, Jon Hunter wrote:
You mean this sequence?
err = device_add(>dev);
if (err) {
dev_err(host1x->dev, "could not add context device %d:
%d\n", i, err);
On Thu, Feb 01, 2024 at 07:35:24PM +, Jon Hunter wrote:
> > You mean this sequence?
> >
> > err = device_add(>dev);
> > if (err) {
> > dev_err(host1x->dev, "could not add context device %d:
> > %d\n", i, err);
> >
On 31/01/2024 15:33, Jason Gunthorpe wrote:
On Tue, Jan 30, 2024 at 09:55:18PM +, Jon Hunter wrote:
On 30/01/2024 16:15, Jason Gunthorpe wrote:
This was added in commit c95469aa5a18 ("gpu: host1x: Set DMA ops on device
creation") with the note:
Currently host1x-instanciated
On Tue, Jan 30, 2024 at 09:55:18PM +, Jon Hunter wrote:
>
> On 30/01/2024 16:15, Jason Gunthorpe wrote:
> > This was added in commit c95469aa5a18 ("gpu: host1x: Set DMA ops on device
> > creation") with the note:
> >
> > Currently host1x-instanciated devices have their dma_ops left to
On 30/01/2024 16:15, Jason Gunthorpe wrote:
This was added in commit c95469aa5a18 ("gpu: host1x: Set DMA ops on device
creation") with the note:
Currently host1x-instanciated devices have their dma_ops left to NULL,
which makes any DMA operation (like buffer import) on ARM64
This was added in commit c95469aa5a18 ("gpu: host1x: Set DMA ops on device
creation") with the note:
Currently host1x-instanciated devices have their dma_ops left to NULL,
which makes any DMA operation (like buffer import) on ARM64 fallback
to the dummy_dma_ops and fail with an error.
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