On Sat, Sep 26, 2020 at 4:14 PM Christoph Hellwig wrote:
>
> On Fri, Sep 25, 2020 at 06:46:22PM +, Tomasz Figa wrote:
> > > +static void *iommu_dma_alloc_noncoherent(struct device *dev, size_t size,
> > > + dma_addr_t *handle, enum dma_data_
h | 13 +-----
> 11 files changed, 22 insertions(+), 134 deletions(-)
Acked-by: Tomasz Figa
Best regards,
Tomasz
Hi Christoph,
On Tue, Sep 15, 2020 at 05:51:21PM +0200, Christoph Hellwig wrote:
> Implement the alloc_noncoherent method to provide memory that is neither
> coherent not contiguous.
>
> Signed-off-by: Christoph Hellwig
> ---
> drivers/iommu/dma-iommu.c | 41 +++-
On Tue, Sep 1, 2020 at 1:06 PM Christoph Hellwig wrote:
>
> On Thu, Aug 20, 2020 at 07:33:48PM +0200, Tomasz Figa wrote:
> > > It wasn't meant to be too insulting, but I found this out when trying
> > > to figure out how to just disable it. But it also ends up us
On Thu, Aug 20, 2020 at 6:52 PM Christoph Hellwig wrote:
>
> On Thu, Aug 20, 2020 at 12:24:31PM +0200, Tomasz Figa wrote:
> > > Of course this still uses the scatterlist structure with its annoying
> > > mix of input and output parametes, so I'd rather not expose i
On Thu, Aug 20, 2020 at 6:54 PM Christoph Hellwig wrote:
>
> On Thu, Aug 20, 2020 at 12:05:29PM +0200, Tomasz Figa wrote:
> > The UAPI and V4L2/videobuf2 changes are in good shape and the only
> > wrong part is the use of DMA API, which was based on an earlier email
> >
On Thu, Aug 20, 2020 at 7:20 AM Christoph Hellwig wrote:
>
> On Thu, Aug 20, 2020 at 06:43:47AM +0200, Christoph Hellwig wrote:
> > On Wed, Aug 19, 2020 at 03:57:53PM +0200, Tomasz Figa wrote:
> > > > > Could you explain what makes you think it's unused? It&#
On Thu, Aug 20, 2020 at 6:45 AM Christoph Hellwig wrote:
>
> On Wed, Aug 19, 2020 at 04:11:52PM +0200, Tomasz Figa wrote:
> > > > By the way, as a videobuf2 reviewer, I'd appreciate being CC'd on any
> > > > series related to the subsystem-facing DMA API ch
On Thu, Aug 20, 2020 at 7:02 AM Christoph Hellwig wrote:
>
> On Wed, Aug 19, 2020 at 03:07:04PM +0100, Robin Murphy wrote:
> >> FWIW, I asked back in time what the plan is for non-coherent
> >> allocations and it seemed like DMA_ATTR_NON_CONSISTENT and
> >> dma_sync_*() was supposed to be the righ
Hi Christoph,
On Wed, Aug 19, 2020 at 8:57 AM Christoph Hellwig wrote:
>
> Add a new API to allocate and free pages that are guaranteed to be
> addressable by a device, but otherwise behave like pages allocated by
> alloc_pages. The intended APIs to sync them for use with the device
> and cpu ar
On Wed, Aug 19, 2020 at 4:07 PM Robin Murphy wrote:
>
> On 2020-08-19 13:49, Tomasz Figa wrote:
> > On Wed, Aug 19, 2020 at 1:51 PM Robin Murphy wrote:
> >>
> >> Hi Tomasz,
> >>
> >> On 2020-08-19 12:16, Tomasz Figa wrote:
> >>> Hi Chri
On Wed, Aug 19, 2020 at 3:57 PM Christoph Hellwig wrote:
>
> On Wed, Aug 19, 2020 at 02:49:01PM +0200, Tomasz Figa wrote:
> > With the default config it doesn't, but with
> > CONFIG_DMA_NONCOHERENT_CACHE_SYNC enabled it makes dma_pgprot() keep
> > the pgprot v
On Wed, Aug 19, 2020 at 3:55 PM Christoph Hellwig wrote:
>
> On Wed, Aug 19, 2020 at 01:16:51PM +0200, Tomasz Figa wrote:
> > Hi Christoph,
> >
> > On Wed, Aug 19, 2020 at 8:56 AM Christoph Hellwig wrote:
> > >
> > > The V4L2-FLAG-MEMORY-NON-CONSISTENT
On Wed, Aug 19, 2020 at 1:51 PM Robin Murphy wrote:
>
> Hi Tomasz,
>
> On 2020-08-19 12:16, Tomasz Figa wrote:
> > Hi Christoph,
> >
> > On Wed, Aug 19, 2020 at 8:56 AM Christoph Hellwig wrote:
> >>
> >> The V4L2-FLAG-MEMORY-NON-CONSISTENT flag is
Hi Christoph,
On Wed, Aug 19, 2020 at 8:56 AM Christoph Hellwig wrote:
>
> The V4L2-FLAG-MEMORY-NON-CONSISTENT flag is entirely unused,
Could you explain what makes you think it's unused? It's a feature of
the UAPI generally supported by the videobuf2 framework and relied on
by Chromium OS to ge
15 matches
Mail list logo
