Re: i915 driver update testing

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