[Intel-gfx] [PATCH 00/16] drm/i915: Adding NV12 for skylake display

[Chandra Konduru]

This patch series is adding initial NV12 support for Skylake display
after rebasing on latest drm-intel-nightly. Earlier I had two patch
series one for 0/180 and another for 90/270. Some of the patches
were already merged. This is combined series to support 0/90/180/270
and removing the ones that are already merged.

Feature is tested with igt/kms_nv12 testcases.
Feature is unit tested for linear/X/Y formats in 0, 90, 180, 270
orientations with combinations of 1 or 2 planes enabled along with
scaling. Also negatively tested for enabling NV12 on unsupported
plane.

The last patch in this series depends on Tvrtko's GEM remapping
for NV12 format patch series.

First two patches fixing couple things in dbuf logic to allocate
correct min number of dbuf blocks and use correct source width
and height in 90/270 rotation cases.

Update from last rev:
 Resolved Daniel's review feedback
 - Did one WA per commit
 - Moved get stepping functions better place
 - Added comments

Chandra Konduru (16):
  drm/i915: Allocate min dbuf blocks per bspec
  drm/i915: In DBUF/WM calcs for 90/270, swap w & h
  drm/i915: Add register definitions for NV12 support
  drm/i915: Set scaler mode for NV12
  drm/i915: Stage scaler request for NV12 as src format
  drm/i915: Update format_is_yuv() to include NV12
  drm/i915: Upscale scaler max scale for NV12.
  drm/i915: Add NV12 as supported format for primary plane
  drm/i915: Add NV12 as supported format for sprite plane
  drm/i915: Add NV12 support to intel_framebuffer_init
  drm/i915: Add NV12 to primary plane programming.
  drm/i915: Add NV12 to sprite plane programming.
  drm/i915: Set initial phase & trip for NV12 scaler
  drm/i915: skl nv12 wa - disable streamer fix
  drm/i915: skl nv12 wa - NV12 to RGB switch
  drm/i915: Add 90/270 rotation for NV12 format.

 drivers/gpu/drm/i915/i915_reg.h      |   47 +++++++
 drivers/gpu/drm/i915/intel_atomic.c  |    5 +-
 drivers/gpu/drm/i915/intel_csr.c     |   29 -----
 drivers/gpu/drm/i915/intel_display.c |  226 ++++++++++++++++++++++++++++++++--
 drivers/gpu/drm/i915/intel_drv.h     |    6 +-
 drivers/gpu/drm/i915/intel_pm.c      |   71 ++++++++++-
 drivers/gpu/drm/i915/intel_sprite.c  |  125 +++++++++++++++----
 7 files changed, 439 insertions(+), 70 deletions(-)

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1.7.9.5