i915 driver update testing

[O. Hartmann]

Am Sun, 05 Oct 2014 21:54:22 +0200
Koop Mast <kwm at rainbow-runner.nl> schrieb:

> On Fri, 2014-10-03 at 20:02 +0300, Konstantin Belousov wrote:
> > Please find at the
> > https://kib.kiev.ua/kib/drm/i915.1.patch
> > a patch which provides some updates to the i915 driver. At large, this
> > is import of the batch of Linux commits, and as such, it is interesting
> > mostly as attempt to restart the race to get us more up to date Linux code
> > imported. It might provide some bug fixes, most likely for IvyBridge.
> > Interesting from the development PoV is the update of the GEM i/o ioctl
> > code path to mimic Linux code structure.
> > 
> > I am asking _only_ for reports of regressions with the patch applied,
> > comparing with the code which is currently in HEAD. I will not debug
> > any existing bugs, my goal right now is to commit this update, which is
> > needed for further work. I.e., only when you get an issue with the patch
> > applied, but cannot reproduce the problem without the patch, please
> > prepare a bug report.
> > 
> > FYI, the driver will attach to haswell gfx, but I am not interested in
> > reports about this (see above paragraph). On my test box, which is Core
> > i7 4770S, the mode-setting and front-buffer rendering works, but Mesa
> > immediately cause renderer to bug out.
> > 
> > Work was sponsored by The FreeBSD Foundation, both by time and hardware,
> > and Intel provided access to the documentation.
> 
> Hi, I got a working X-server and framebuffer console on my Sandybridge
> system. The only regression I noticed so far is the line below, where
> the number after 'expected' changes per time the line is printed. 
> 
> Oct  5 21:50:12 crashalot kernel: error: [drm:pid1049:gen6_sanitize_pm]
> *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected
> 160d0000, was 16000000
> Oct  5 21:51:04 crashalot kernel: error: [drm:pid1049:gen6_sanitize_pm]
> *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected
> 160d0000, was 16000000
> Oct  5 21:53:14 crashalot kernel: error: [drm:pid1170:gen6_sanitize_pm]
> *ERROR* Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected
> 160d0000, was 16000000
> 
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Is this patch supposed to work also with IvyBridge type iGPUs, i.w. P4600 (the iGPU of
some XEONs of the i5-122Xv2 series)?

When I load drm2 and i915kms via loader.conf, the box gets black screen and then dies.

Oliver 
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