diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-03-27 17:50:41 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-03-28 21:29:53 +0200 |
| commit | fbeb4f36221358f01c9608b959b8d542e7becae6 (patch) | |
| tree | f4d1f9c7cef2e787ef3fbc96c83438845471d4a7 /drivers/gpu | |
| parent | 1b386cf84931a75676d3d14c4868929c0296d6c1 (diff) | |
| download | linux-next-fbeb4f36221358f01c9608b959b8d542e7becae6.tar.gz | |
drm/i915: Extract glk_color_check()
Unlike the earlier platforms GLK has dedicated degamma and gamma
LUTs. And quite curiously the degamma LUT is actually controlled
via the PLANE_COLOR_CTL CSC enable bit. Hence we must compute
gamma_enable and csc_enable differently to pre-GLK platforms.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190327155045.28446-7-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_color.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c index cb40c89da038..90ebcf7bef82 100644 --- a/drivers/gpu/drm/i915/intel_color.c +++ b/drivers/gpu/drm/i915/intel_color.c @@ -883,6 +883,44 @@ static int chv_color_check(struct intel_crtc_state *crtc_state) return 0; } +static u32 glk_gamma_mode(const struct intel_crtc_state *crtc_state) +{ + if (!crtc_state->gamma_enable || + crtc_state_is_legacy_gamma(crtc_state)) + return GAMMA_MODE_MODE_8BIT; + else + return GAMMA_MODE_MODE_10BIT; +} + +static int glk_color_check(struct intel_crtc_state *crtc_state) +{ + int ret; + + ret = check_luts(crtc_state); + if (ret) + return ret; + + crtc_state->gamma_enable = + crtc_state->base.gamma_lut && + !crtc_state->c8_planes; + + /* On GLK+ degamma LUT is controlled by csc_enable */ + crtc_state->csc_enable = + crtc_state->base.degamma_lut || + crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB || + crtc_state->base.ctm || crtc_state->limited_color_range; + + crtc_state->gamma_mode = glk_gamma_mode(crtc_state); + + crtc_state->csc_mode = 0; + + ret = intel_color_add_affected_planes(crtc_state); + if (ret) + return ret; + + return 0; +} + static u32 icl_gamma_mode(const struct intel_crtc_state *crtc_state) { u32 gamma_mode = 0; @@ -993,6 +1031,8 @@ void intel_color_init(struct intel_crtc *crtc) } else { if (INTEL_GEN(dev_priv) >= 11) dev_priv->display.color_check = icl_color_check; + else if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) + dev_priv->display.color_check = glk_color_check; else dev_priv->display.color_check = _intel_color_check; |