+static struct drm_property_blob *
+glk_read_lut_10(const struct intel_crtc_state *crtc_state, u32 prec_index)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ int hw_lut_size = ivb_lut_10_size(prec_index);
+ enum pipe pipe = crtc->pipe;
+ struct drm_property_blob *blob;
+ struct drm_color_lut *blob_data;
+ u32 i, val;
+
+ I915_WRITE(PREC_PAL_INDEX(pipe), prec_index |
+ PAL_PREC_AUTO_INCREMENT);
+
+ blob = drm_property_create_blob(&dev_priv->drm,
+ sizeof(struct drm_color_lut) * hw_lut_size,
+ NULL);
+ if (IS_ERR(blob))
+ return NULL;
+
+ blob_data = blob->data;
+
+ for (i = 0; i < hw_lut_size; i++) {
+ val = I915_READ(PREC_PAL_DATA(pipe));
+
+ blob_data[i].red = intel_color_lut_pack(REG_FIELD_GET(
+ PREC_PAL_DATA_RED_MASK, val), 10);
+ blob_data[i].green = intel_color_lut_pack(REG_FIELD_GET(
+ PREC_PAL_DATA_GREEN_MASK, val), 10);
+ blob_data[i].blue = intel_color_lut_pack(REG_FIELD_GET(
+ PREC_PAL_DATA_BLUE_MASK, val), 10);
+ }
+
+ I915_WRITE(PREC_PAL_INDEX(pipe), 0);
+
+ return blob;
+}
+
+static void glk_read_luts(struct intel_crtc_state *crtc_state)
+{
+ if (crtc_state->gamma_mode == GAMMA_MODE_MODE_8BIT)
+ crtc_state->base.gamma_lut = i9xx_read_lut_8(crtc_state);
+ else
+ crtc_state->base.gamma_lut = glk_read_lut_10(crtc_state, PAL_PREC_INDEX_VALUE(0));
+}
+