[Intel-gfx] [v9][PATCH 00/11] drm/i915: adding state checker for gamma lut values

[Swati Sharma]

In this patch series, added state checker to validate gamma
(8BIT and 10BIT).This reads hardware state, and compares the originally
requested state(s/w) to the state read from the hardware.
This is done for legacy, i965, ilk, glk and their variant platforms. 

Intentionally, excluded bdw and ivb since they have spilt gamma mode;
for which degamma read outs are required (which I think shouldn't be
included in this patch series). Will include after degamma state checker
is completed.

v1: -Implementation done for legacy platforms
     (removed all the placeholders) (Jani)
v2: -Restructured code and created platform specific patch series for 
     gamma validation
v3: -Rebase
v4: -Minor changes-function name changes mainly
v5: -Added degamma validation (Ville)
v6: -Removed degamma changes, debugging was becoming difficult
    -Added function to assign bit_precision for gamma/degamma
     lut values /platform
    -Added debug info into intel_dump_pipe_config() (Jani)
v7: -Added platform specific functions to compute gamma bit precision
     on the basis of GAMMA_MODE (Ville)
    -Corrected checkpatch warnings
v8: -Restructured code
    -Removed bdw and ivb platform state checker
v9: -Obliged 80 character word limit [Uma]
    -Added state checker for icl
    -Added bit precision func for icl 

Swati Sharma (11):
  drm/i915/display: Add func to get gamma bit precision
  drm/i915/display: Add debug log for color parameters
  drm/i915/display: Add func to compare hw/sw gamma lut
  drm/i915/display: Add macro to compare gamma hw/sw lut
  drm/i915/display: Extract i9xx_read_luts()
  drm/i915/display: Extract i965_read_luts()
  drm/i915/display: Extract chv_read_luts()
  drm/i915/display: Extract ilk_read_luts()
  drm/i915/display: Extract glk_read_luts()
  drm/i915/display: Extract icl_read_luts()
  FOR_TESTING_ONLY: Print rgb values of hw and sw blobs

 drivers/gpu/drm/i915/display/intel_color.c   | 523 ++++++++++++++++++++++++++-
 drivers/gpu/drm/i915/display/intel_color.h   |   7 +
 drivers/gpu/drm/i915/display/intel_display.c |  34 ++
 drivers/gpu/drm/i915/i915_reg.h              |  21 ++
 4 files changed, 577 insertions(+), 8 deletions(-)

-- 
1.9.1