>> …
>>> +++ b/drivers/iio/industrialio-buffer.c
>> …
>>> +static void iio_buffer_dmabuf_release(struct kref *ref)
>>> +{
>> …
>>> + dma_resv_lock(dmabuf->resv, NULL);
>>> + dma_buf_unmap_attachment(attach, priv->sgt, priv->dir);
>>> + dma_resv_unlock(dmabuf->resv);
>> …
>>
>> Under which cir
Le mercredi 19 juin 2024 à 13:43 +0200, Markus Elfring a écrit :
> …
> > +++ b/drivers/iio/industrialio-buffer.c
> …
> > +static void iio_buffer_dmabuf_release(struct kref *ref)
> > +{
> …
> > + dma_resv_lock(dmabuf->resv, NULL);
> > + dma_buf_unmap_attachment(attach, priv->sgt, priv->dir);
> >
…
> +++ b/drivers/iio/industrialio-buffer.c
…
> +static void iio_buffer_dmabuf_release(struct kref *ref)
> +{
…
> + dma_resv_lock(dmabuf->resv, NULL);
> + dma_buf_unmap_attachment(attach, priv->sgt, priv->dir);
> + dma_resv_unlock(dmabuf->resv);
…
Under which circumstances will another
/commits/Paul-Cercueil/dmaengine-Add-API-function-dmaengine_prep_peripheral_dma_vec/20240618-180602
> base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
> patch link:
> https://lore.kernel.org/r/20240618100302.72886-4-paul%40crapouillou.net
> patch subject: [PATCH v
/scm/linux/kernel/git/jic23/iio.git togreg
patch link:
https://lore.kernel.org/r/20240618100302.72886-4-paul%40crapouillou.net
patch subject: [PATCH v11 3/7] iio: core: Add new DMABUF interface
infrastructure
config: x86_64-randconfig-161-20240619
(https://download.01.org/0day-ci/archiv
Add the necessary infrastructure to the IIO core to support a new
optional DMABUF based interface.
With this new interface, DMABUF objects (externally created) can be
attached to a IIO buffer, and subsequently used for data transfer.
A userspace application can then use this interface to share DM
