Re: [PATCH 00/10] drm/i915: Fixes from my attempt at running igt on gen2

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On Mon, Dec 14, 2015 at 06:23:39PM +0200, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> It's been a while since I last ran igt on gen2, so I figured I'd
> give it a shot. 855 had some failures, 830 no longer worked at
> all. So I went ahead and fixed them, and here's the result.
> 
> The first three patches are not even gen2 specific bugs I caught
> with this effort. The rest is for gen2.
> 
> I have some fixes for igt as well, which I'll post separately.
> 
> The good news is that with these patches (and the igt fixes) my
> 855 completes a full kms_flip run without failures, and the BAT
> set has only one failure (gem_render_tiled_blits). 830 is fairly
> good too, but it does have a lot of underruns and pipe_assert()
> dmesg warnings. Lot of those are due to the pipe enable quirks
> since we implement those quite haphazardly.
> 
> The series is available here:
> git://github.com/vsyrjala/linux.git gen2_igt_fixes
> 
> Ville Syrjälä (10):
>   drm/i915: Cleanup phys status page too
>   drm/i915: Wait for pipe to start before sampling vblank timestamps on
>     gen2
>   drm/i915: Allow 27 bytes child_dev for VBT <109
>   drm/i915: Expect child dev size of 22 bytes for VBT < 106
>   drm/i915: Use MI_BATCH_BUFFER_START on 830/845

Merged these. Thanks for the reviews.

>   drm/i915: Release mmaps on partial ggtt vma unbind
>   drm/i915: Write out crc frame counts in hex
>   drm/i915: Use drm_vblank_count() on gen2 for crc frame count
>   drm/i915: Enable vblank_disable_immediate on gen2
>   drm/i915: Reject < 8 byte batches on 830/845

And at some point I'll need to figure out what to do with the
rest. Some I'll just drop for sure.

> 
>  drivers/gpu/drm/i915/i915_debugfs.c        | 13 ++++++++++++-
>  drivers/gpu/drm/i915/i915_gem.c            |  3 +++
>  drivers/gpu/drm/i915/i915_gem_execbuffer.c |  3 +++
>  drivers/gpu/drm/i915/i915_irq.c            | 14 +++++---------
>  drivers/gpu/drm/i915/intel_bios.c          | 21 ++++++++++++--------
>  drivers/gpu/drm/i915/intel_display.c       | 11 +++++++++++
>  drivers/gpu/drm/i915/intel_ringbuffer.c    | 31 +++++++++++++++++++++++-------
>  7 files changed, 71 insertions(+), 25 deletions(-)
> 
> -- 
> 2.4.10

-- 
Ville Syrjälä
Intel OTC
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