Re: [Linaro-mm-sig] [RFC 0/1] drm/pl111: Initial drm/kms driver for pl111

2013-09-14 Thread Daniel Stone
Hi, On Tue, 2013-08-06 at 12:31 +0100, Tom Cooksey wrote: > > >> On Fri, Jul 26, 2013 at 11:58 AM, Tom Cooksey > > >> wrote: > > that was part of the reason to punt this problem to userspace ;-) > > > > In practice, the kernel drivers doesn't usually know too much about > > the dimensions/format/

Re: [Linaro-mm-sig] [RFC 0/1] drm/pl111: Initial drm/kms driver for pl111

2013-08-07 Thread Alex Deucher
On Wed, Aug 7, 2013 at 1:33 PM, Tom Cooksey wrote: > >> >> > Didn't you say that programmatically describing device placement >> >> > constraints was an unbounded problem? I guess we would have to >> >> > accept that it's not possible to describe all possible constraints >> >> > and instead find a

Re: [Linaro-mm-sig] [RFC 0/1] drm/pl111: Initial drm/kms driver for pl111

2013-08-06 Thread Daniel Vetter
On Tue, Aug 6, 2013 at 2:18 PM, Lucas Stach wrote: > I strongly disagree with exposing low-level hardware details like tiling > to userspace. If we have to do the negotiation of those things in > userspace we will end up with having to pipe those information through > things like the wayland proto

Re: [Linaro-mm-sig] [RFC 0/1] drm/pl111: Initial drm/kms driver for pl111

2013-08-06 Thread Rob Clark
On Tue, Aug 6, 2013 at 10:36 AM, Lucas Stach wrote: > Am Dienstag, den 06.08.2013, 10:14 -0400 schrieb Rob Clark: >> On Tue, Aug 6, 2013 at 8:18 AM, Lucas Stach wrote: >> > Am Dienstag, den 06.08.2013, 12:31 +0100 schrieb Tom Cooksey: >> >> Hi Rob, >> >> >> >> +lkml >> >> >> >> > >> On Fri, Jul 2

Re: [Linaro-mm-sig] [RFC 0/1] drm/pl111: Initial drm/kms driver for pl111

2013-08-06 Thread Lucas Stach
Am Dienstag, den 06.08.2013, 10:14 -0400 schrieb Rob Clark: > On Tue, Aug 6, 2013 at 8:18 AM, Lucas Stach wrote: > > Am Dienstag, den 06.08.2013, 12:31 +0100 schrieb Tom Cooksey: > >> Hi Rob, > >> > >> +lkml > >> > >> > >> On Fri, Jul 26, 2013 at 11:58 AM, Tom Cooksey > >> > >> wrote: > >> > >> >

Re: [Linaro-mm-sig] [RFC 0/1] drm/pl111: Initial drm/kms driver for pl111

2013-08-06 Thread Rob Clark
On Tue, Aug 6, 2013 at 8:18 AM, Lucas Stach wrote: > Am Dienstag, den 06.08.2013, 12:31 +0100 schrieb Tom Cooksey: >> Hi Rob, >> >> +lkml >> >> > >> On Fri, Jul 26, 2013 at 11:58 AM, Tom Cooksey >> > >> wrote: >> > >> >> > * It abuses flags parameter of DRM_IOCTL_MODE_CREATE_DUMB to >> > >> >> >

Re: [Linaro-mm-sig] [RFC 0/1] drm/pl111: Initial drm/kms driver for pl111

2013-08-06 Thread Lucas Stach
Am Dienstag, den 06.08.2013, 12:31 +0100 schrieb Tom Cooksey: > Hi Rob, > > +lkml > > > >> On Fri, Jul 26, 2013 at 11:58 AM, Tom Cooksey > > >> wrote: > > >> >> > * It abuses flags parameter of DRM_IOCTL_MODE_CREATE_DUMB to > > >> >> >also allocate buffers for the GPU. Still not sure how to