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

ville.syrjala
2015-12-14T16:23:52Z

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

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: Release mmaps on partial ggtt vma unbind
drm/i915: Cleanup phys status page too
drm/i915: Write out crc frame counts in hex
drm/i915: Wait for pipe to start before sampling vblank timestamps on
gen2
drm/i915: Use drm_vblank_count() on gen2 for crc frame count
drm/i915: Enable vblank_disable_immediate 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: Reject < 8 byte batches on 830/845
drm/i915: Use MI_BATCH_BUFFER_START on 830/845

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(-)

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2.4.10