From f61a8f36c4826bdaf33e8c3d2771d13028fc5edf Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Mon, 8 Apr 2019 15:18:15 +0300 Subject: [PATCH] drm/i915: Clean up cherryview_load_luts() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit I like my functions simple, so split up the low level bits from cherryview_load_luts() into separate functions. Also rename the whole thing to chv_load_luts() to match the new world order. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20190408121815.30142-1-ville.syrjala@linux.intel.com Reviewed-by: Swati Sharma --- drivers/gpu/drm/i915/intel_color.c | 96 +++++++++++++++++++++++--------------- 1 file changed, 59 insertions(+), 37 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c index 9093daabc290..962db1236970 100644 --- a/drivers/gpu/drm/i915/intel_color.c +++ b/drivers/gpu/drm/i915/intel_color.c @@ -784,56 +784,78 @@ static void icl_load_luts(const struct intel_crtc_state *crtc_state) } } -static void cherryview_load_luts(const struct intel_crtc_state *crtc_state) +static u32 chv_cgm_degamma_ldw(const struct drm_color_lut *color) +{ + return drm_color_lut_extract(color->green, 14) << 16 | + drm_color_lut_extract(color->blue, 14); +} + +static u32 chv_cgm_degamma_udw(const struct drm_color_lut *color) +{ + return drm_color_lut_extract(color->red, 14); +} + +static void chv_load_cgm_degamma(struct intel_crtc *crtc, + const struct drm_property_blob *blob) { - struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - const struct drm_property_blob *gamma_lut = crtc_state->base.gamma_lut; - const struct drm_property_blob *degamma_lut = crtc_state->base.degamma_lut; + const struct drm_color_lut *lut = blob->data; + int i, lut_size = drm_color_lut_size(blob); enum pipe pipe = crtc->pipe; - cherryview_load_csc_matrix(crtc_state); - - if (crtc_state_is_legacy_gamma(crtc_state)) { - i9xx_load_luts(crtc_state); - return; + for (i = 0; i < lut_size; i++) { + I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 0), + chv_cgm_degamma_ldw(&lut[i])); + I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 1), + chv_cgm_degamma_udw(&lut[i])); } +} - if (degamma_lut) { - const struct drm_color_lut *lut = degamma_lut->data; - int i, lut_size = INTEL_INFO(dev_priv)->color.degamma_lut_size; +static u32 chv_cgm_gamma_ldw(const struct drm_color_lut *color) +{ + return drm_color_lut_extract(color->green, 10) << 16 | + drm_color_lut_extract(color->blue, 10); +} - for (i = 0; i < lut_size; i++) { - u32 word0, word1; +static u32 chv_cgm_gamma_udw(const struct drm_color_lut *color) +{ + return drm_color_lut_extract(color->red, 10); +} - /* Write LUT in U0.14 format. */ - word0 = - (drm_color_lut_extract(lut[i].green, 14) << 16) | - drm_color_lut_extract(lut[i].blue, 14); - word1 = drm_color_lut_extract(lut[i].red, 14); +static void chv_load_cgm_gamma(struct intel_crtc *crtc, + const struct drm_property_blob *blob) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + const struct drm_color_lut *lut = blob->data; + int i, lut_size = drm_color_lut_size(blob); + enum pipe pipe = crtc->pipe; - I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 0), word0); - I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 1), word1); - } + for (i = 0; i < lut_size; i++) { + I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 0), + chv_cgm_gamma_ldw(&lut[i])); + I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 1), + chv_cgm_gamma_udw(&lut[i])); } +} - if (gamma_lut) { - const struct drm_color_lut *lut = gamma_lut->data; - int i, lut_size = INTEL_INFO(dev_priv)->color.gamma_lut_size; - - for (i = 0; i < lut_size; i++) { - u32 word0, word1; +static void chv_load_luts(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); + const struct drm_property_blob *gamma_lut = crtc_state->base.gamma_lut; + const struct drm_property_blob *degamma_lut = crtc_state->base.degamma_lut; - /* Write LUT in U0.10 format. */ - word0 = - (drm_color_lut_extract(lut[i].green, 10) << 16) | - drm_color_lut_extract(lut[i].blue, 10); - word1 = drm_color_lut_extract(lut[i].red, 10); + cherryview_load_csc_matrix(crtc_state); - I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 0), word0); - I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 1), word1); - } + if (crtc_state_is_legacy_gamma(crtc_state)) { + i9xx_load_luts(crtc_state); + return; } + + if (degamma_lut) + chv_load_cgm_degamma(crtc, degamma_lut); + + if (gamma_lut) + chv_load_cgm_gamma(crtc, gamma_lut); } void intel_color_load_luts(const struct intel_crtc_state *crtc_state) @@ -1232,7 +1254,7 @@ void intel_color_init(struct intel_crtc *crtc) if (IS_CHERRYVIEW(dev_priv)) { dev_priv->display.color_check = chv_color_check; dev_priv->display.color_commit = i9xx_color_commit; - dev_priv->display.load_luts = cherryview_load_luts; + dev_priv->display.load_luts = chv_load_luts; } else if (INTEL_GEN(dev_priv) >= 4) { dev_priv->display.color_check = i9xx_color_check; dev_priv->display.color_commit = i9xx_color_commit; -- 2.11.0