[Intel-gfx] [PATCH 0/9] Wrap up ILK-style atomic watermarks

[Matt Roper]

We've been chasing a regression[1] that prevented us from merging the last
couple patches of the ILK-style atomic watermark series.  We've finally
identified the culprit --- if we fail to reconstruct the BIOS FB, our internal
driver state was left in an inconsistent state which caused confusion for the
watermark code.  Here's a series that collects that fix (along with a couple
other bugfixes that were found while debugging), a few debugging enhancements,
and the completion of the ILK atomic watermark series.

 * The first patch in this series addresses that issue and
   ensures that we cleanly turn off the primary plane if we're unable to inherit
   the framebuffer.  
 * Patches 2-4 just clarify/expand some of the information dumped by the
   driver while debugging.
 * Patches 5 and 6 fix two additional bugs that were discovered while
   searching for the cause of the regression.
 * Patch 7 just adds some extra paranoia and invariant checking to the
   watermark code.
 * Patches 8 and 9 are the two final patches from the original atomic watermark
   series; with the fixes earlier in the series, we've confirmed that they no
   longer cause regressions on Jani's machine.

[1] http://lists.freedesktop.org/archives/intel-gfx/2015-October/077113.html

Matt Roper (9):
  drm/i915: Disable primary plane if we fail to reconstruct BIOS fb
  drm/i915: Dump in-flight plane state while dumping in-flight CRTC
    state
  drm/i915: Clarify plane state during CRTC state dumps (v2)
  drm/i915: Dump pipe config after initial FB is reconstructed
  drm/i915: Setup clipped src/dest coordinates during FB reconstruction
    (v2)
  drm/i915: Convert hsw_compute_linetime_wm to use in-flight state
  drm/i915: Add extra paranoia to ILK watermark calculations
  drm/i915: Sanitize watermarks after hardware state readout (v2)
  drm/i915: Add two-stage ILK-style watermark programming (v7)

 drivers/gpu/drm/drm_atomic_helper.c  |   1 +
 drivers/gpu/drm/i915/i915_drv.h      |   5 +
 drivers/gpu/drm/i915/intel_atomic.c  |   1 +
 drivers/gpu/drm/i915/intel_display.c | 195 +++++++++++++++++++++++++++++++++--
 drivers/gpu/drm/i915/intel_drv.h     |  31 +++++-
 drivers/gpu/drm/i915/intel_pm.c      | 186 ++++++++++++++++++++++++---------
 6 files changed, 359 insertions(+), 60 deletions(-)

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2.1.4