On Thursday 01 May 2008 19:27:35 Jesse Barnes wrote:
> On Thursday, May 01, 2008 10:16 am Michael Buesch wrote:
> > > So it makes sense to
> > > just update the current code to fallback, and update drivers wanting
> > > specific mask values to check afterwards. I hate to inflict that kind of
> > >
On Thursday 01 May 2008 19:22:55 Jesse Barnes wrote:
> On Thursday, May 01, 2008 10:16 am Michael Buesch wrote:
> > Ok, will redo the patches with that added and the name changed.
> >
> > > Most drivers just do the fallback themselves, right?
> >
> > Right.
> >
> > > So it makes sense to
> > > just
On Thursday 01 May 2008 18:30:04 Jesse Barnes wrote:
> On Thursday, May 01, 2008 9:07 am Michael Buesch wrote:
> > On Thursday 01 May 2008 17:58:26 Christoph Hellwig wrote:
> > > On Thu, May 01, 2008 at 05:47:26PM +0200, Michael Buesch wrote:
> > > > We've discussed that and this behaviour is not a
On Thursday 01 May 2008 17:58:26 Christoph Hellwig wrote:
> On Thu, May 01, 2008 at 05:47:26PM +0200, Michael Buesch wrote:
> > We've discussed that and this behaviour is not acceptable, as the driver
> > must know about a possible fallback in case it can do 32bit DMA
> > more efficiently than 64bi
On Thursday 01 May 2008 17:43:58 Christoph Hellwig wrote:
> On Thu, May 01, 2008 at 05:42:04PM +0200, Michael Buesch wrote:
> > Yeah. because it has to be done in every driver.
> > So we put the implementation into a central place, instead of
> > reimplementing the wheel over and over again. This w
On Thursday 01 May 2008 17:36:18 Christoph Hellwig wrote:
> On Thu, May 01, 2008 at 04:38:15PM +0200, Michael Buesch wrote:
> > This patchset adds API and one user for a "weak" dma_set_mask().
> > Weak means that it will fallback to smaller masks in case the
> > DMA subsystem rejects a big mask.
>
This patchset adds API and one user for a "weak" dma_set_mask().
Weak means that it will fallback to smaller masks in case the
DMA subsystem rejects a big mask.
Currently such rejection may happen if the driver requests a 64bit
mask on a VIA machine, for example. dma_set_mask_weak() will fallback
t
