[Intel-gfx] [PATCH 00/15] drm/i915: Two stage watermarks for g4x

[ville.syrjala at linux.intel.com]

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

This makes g4x follow the two stage watermark programming approach as
well, and as a bonus exposes the video sprites on g4x.

There is one slight problem with merging the wms from multiple pipes;
If one pipe is currently enabled and we're about to enabled another one,
we should turn off CxSR before the second pipe gets enabled as the FIFO
will get repartitioned. This could also happen when there's a parallel
watermark update on the first pipe, so a dumb approach of just disabling
CxSR in the modeset path doesn't really work. I think the proper fix
will involve some shuffling of code in the modeset path because it's
currently a bit of a mess. So with the current code there could be an
occasional underrun reported when enabling the second pipe.

Entire series available here:
git://github.com/vsyrjala/linux.git g4x_atomic_wm_8

Ville Syrjälä (15):
  drm/i915: s/vlv_plane_wm_compute/vlv_raw_plane_wm_compute/ etc.
  drm/i915: Drop the debug message from vlv_get_fifo_size()
  drm/i915: s/vlv_num_wm_levels/intel_wm_num_levels/
  drm/i915: Rename bunch of vlv_ watermark structures to g4x_
  drm/i915: Make vlv/chv watermark debug print less cryptic
  drm/i915: Document CxSR
  drm/i915: Fix cursor 'cpp' in watermark calculatins for old platforms
  drm/i915: Fix the g4x watermark TLB miss workaround
  drm/i915: Refactor the g4x TLB miss w/a to a helper
  drm/i915: Refactor wm calculations
  drm/i915: Apply the g4x TLB miss w/a to SR watermarks as well
  drm/i915: Two stage watermarks for g4x
  drm/i915: Enable HPLL watermarks on g4x
  drm/i915: Add g4x watermark tracepoint
  drm/i915: Add support for sprites on g4x

 drivers/gpu/drm/i915/i915_debugfs.c      |   12 +-
 drivers/gpu/drm/i915/i915_drv.h          |   20 +-
 drivers/gpu/drm/i915/i915_trace.h        |   49 ++
 drivers/gpu/drm/i915/intel_device_info.c |    2 +-
 drivers/gpu/drm/i915/intel_display.c     |   29 +-
 drivers/gpu/drm/i915/intel_drv.h         |   34 +-
 drivers/gpu/drm/i915/intel_pm.c          | 1254 ++++++++++++++++++++++--------
 drivers/gpu/drm/i915/intel_sprite.c      |   18 +-
 8 files changed, 1081 insertions(+), 337 deletions(-)

-- 
2.10.2