10.1 kernel device config for drm2 and kms drivers

[John Marshall]

On Thu, 11 Sep 2014, 11:46 +0300, Konstantin Belousov wrote:
> On Thu, Sep 11, 2014 at 10:28:26AM +0200, Jean-S??bastien P??dron wrote:
> > On 11.09.2014 08:47, John Marshall wrote:
> > > I cannot find any kernel device configuration statements for drm2 or KMS
> > > (e.g. i915kms) drivers in any of the NOTES files in 10-STABLE.
> > > Presumably configurtation statements for these ought to be available for
> > > use in kernel configuration files for 10.1-RELEASE?
> > 
> > Currently, building DRM drivers into the kernel isn't supported. I guess
> > it's mostly a lack of time and demand.
> I did not added file list to the static kernel config due to display
> becoming blank after the driver initialization, which is very early
> for the syscons setup.  Might be, since vt is functional, this may
> be reconsidered.

That's fair enough if the drivers are deemed to be not yet
production-ready.  I am guessing that NEW_XORG will be delivered as
default for 10.1-RELEASE just like it was for 9.3-RELEASE, so lots more
desktop users (unless they explicitly disable NEW_XORG) will find
themselves using these drivers.

> Driver initialization was never tested when loaded from loader, I
> have no idea how i915 starts up with interrupts still disabled.

The console display goes blank for several seconds and then comes to
life with the smaller font and the backlog of dmesg output displayed.

Perhaps I am doing all the wrong things.  I just assumed these new
drivers were functional replacements for drm and i915drm which could be
included in a custom kernel.

-- 
John Marshall
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