diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_color.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_color.c | 121 |
1 files changed, 103 insertions, 18 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c index c1cce93a1c25..98ece9cd7cdd 100644 --- a/drivers/gpu/drm/i915/display/intel_color.c +++ b/drivers/gpu/drm/i915/display/intel_color.c @@ -460,6 +460,16 @@ static void ilk_lut_10_pack(struct drm_color_lut *entry, u32 val) entry->blue = intel_color_lut_pack(REG_FIELD_GET(PREC_PALETTE_BLUE_MASK, val), 10); } +static void icl_lut_multi_seg_pack(struct drm_color_lut *entry, u32 ldw, u32 udw) +{ + entry->red = REG_FIELD_GET(PAL_PREC_MULTI_SEG_RED_UDW_MASK, udw) << 6 | + REG_FIELD_GET(PAL_PREC_MULTI_SEG_RED_LDW_MASK, ldw); + entry->green = REG_FIELD_GET(PAL_PREC_MULTI_SEG_GREEN_UDW_MASK, udw) << 6 | + REG_FIELD_GET(PAL_PREC_MULTI_SEG_GREEN_LDW_MASK, ldw); + entry->blue = REG_FIELD_GET(PAL_PREC_MULTI_SEG_BLUE_UDW_MASK, udw) << 6 | + REG_FIELD_GET(PAL_PREC_MULTI_SEG_BLUE_LDW_MASK, ldw); +} + static void i9xx_color_commit(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); @@ -893,7 +903,7 @@ icl_load_gcmax(const struct intel_crtc_state *crtc_state, struct intel_dsb *dsb = intel_dsb_get(crtc); enum pipe pipe = crtc->pipe; - /* Fixme: LUT entries are 16 bit only, so we can prog 0xFFFF max */ + /* FIXME LUT entries are 16 bit only, so we can prog 0xFFFF max */ intel_dsb_reg_write(dsb, PREC_PAL_GC_MAX(pipe, 0), color->red); intel_dsb_reg_write(dsb, PREC_PAL_GC_MAX(pipe, 1), color->green); intel_dsb_reg_write(dsb, PREC_PAL_GC_MAX(pipe, 2), color->blue); @@ -1630,6 +1640,24 @@ static int glk_gamma_precision(const struct intel_crtc_state *crtc_state) } } +static int icl_gamma_precision(const struct intel_crtc_state *crtc_state) +{ + if ((crtc_state->gamma_mode & POST_CSC_GAMMA_ENABLE) == 0) + return 0; + + switch (crtc_state->gamma_mode & GAMMA_MODE_MODE_MASK) { + case GAMMA_MODE_MODE_8BIT: + return 8; + case GAMMA_MODE_MODE_10BIT: + return 10; + case GAMMA_MODE_MODE_12BIT_MULTI_SEGMENTED: + return 16; + default: + MISSING_CASE(crtc_state->gamma_mode); + return 0; + } +} + int intel_color_get_gamma_bit_precision(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); @@ -1641,7 +1669,9 @@ int intel_color_get_gamma_bit_precision(const struct intel_crtc_state *crtc_stat else return i9xx_gamma_precision(crtc_state); } else { - if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) + if (INTEL_GEN(dev_priv) >= 11) + return icl_gamma_precision(crtc_state); + else if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) return glk_gamma_precision(crtc_state); else if (IS_IRONLAKE(dev_priv)) return ilk_gamma_precision(crtc_state); @@ -1658,9 +1688,9 @@ static bool err_check(struct drm_color_lut *lut1, ((abs((long)lut2->green - lut1->green)) <= err); } -static bool intel_color_lut_entry_equal(struct drm_color_lut *lut1, - struct drm_color_lut *lut2, - int lut_size, u32 err) +static bool intel_color_lut_entries_equal(struct drm_color_lut *lut1, + struct drm_color_lut *lut2, + int lut_size, u32 err) { int i; @@ -1690,16 +1720,8 @@ bool intel_color_lut_equal(struct drm_property_blob *blob1, lut_size2 = drm_color_lut_size(blob2); /* check sw and hw lut size */ - switch (gamma_mode) { - case GAMMA_MODE_MODE_8BIT: - case GAMMA_MODE_MODE_10BIT: - if (lut_size1 != lut_size2) - return false; - break; - default: - MISSING_CASE(gamma_mode); - return false; - } + if (lut_size1 != lut_size2) + return false; lut1 = blob1->data; lut2 = blob2->data; @@ -1707,11 +1729,16 @@ bool intel_color_lut_equal(struct drm_property_blob *blob1, err = 0xffff >> bit_precision; /* check sw and hw lut entry to be equal */ - switch (gamma_mode) { + switch (gamma_mode & GAMMA_MODE_MODE_MASK) { case GAMMA_MODE_MODE_8BIT: case GAMMA_MODE_MODE_10BIT: - if (!intel_color_lut_entry_equal(lut1, lut2, - lut_size2, err)) + if (!intel_color_lut_entries_equal(lut1, lut2, + lut_size2, err)) + return false; + break; + case GAMMA_MODE_MODE_12BIT_MULTI_SEGMENTED: + if (!intel_color_lut_entries_equal(lut1, lut2, + 9, err)) return false; break; default: @@ -1946,6 +1973,63 @@ static void glk_read_luts(struct intel_crtc_state *crtc_state) crtc_state->hw.gamma_lut = glk_read_lut_10(crtc, PAL_PREC_INDEX_VALUE(0)); } +static struct drm_property_blob * +icl_read_lut_multi_segment(struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + int i, lut_size = INTEL_INFO(dev_priv)->color.gamma_lut_size; + enum pipe pipe = crtc->pipe; + struct drm_property_blob *blob; + struct drm_color_lut *lut; + + blob = drm_property_create_blob(&dev_priv->drm, + sizeof(struct drm_color_lut) * lut_size, + NULL); + if (IS_ERR(blob)) + return NULL; + + lut = blob->data; + + intel_de_write(dev_priv, PREC_PAL_MULTI_SEG_INDEX(pipe), + PAL_PREC_AUTO_INCREMENT); + + for (i = 0; i < 9; i++) { + u32 ldw = intel_de_read(dev_priv, PREC_PAL_MULTI_SEG_DATA(pipe)); + u32 udw = intel_de_read(dev_priv, PREC_PAL_MULTI_SEG_DATA(pipe)); + + icl_lut_multi_seg_pack(&lut[i], ldw, udw); + } + + intel_de_write(dev_priv, PREC_PAL_MULTI_SEG_INDEX(pipe), 0); + + /* + * FIXME readouts from PAL_PREC_DATA register aren't giving + * correct values in the case of fine and coarse segments. + * Restricting readouts only for super fine segment as of now. + */ + + return blob; +} + +static void icl_read_luts(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + + if ((crtc_state->gamma_mode & POST_CSC_GAMMA_ENABLE) == 0) + return; + + switch (crtc_state->gamma_mode & GAMMA_MODE_MODE_MASK) { + case GAMMA_MODE_MODE_8BIT: + crtc_state->hw.gamma_lut = ilk_read_lut_8(crtc); + break; + case GAMMA_MODE_MODE_12BIT_MULTI_SEGMENTED: + crtc_state->hw.gamma_lut = icl_read_lut_multi_segment(crtc); + break; + default: + crtc_state->hw.gamma_lut = glk_read_lut_10(crtc, PAL_PREC_INDEX_VALUE(0)); + } +} + void intel_color_init(struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); @@ -1989,6 +2073,7 @@ void intel_color_init(struct intel_crtc *crtc) if (INTEL_GEN(dev_priv) >= 11) { dev_priv->display.load_luts = icl_load_luts; + dev_priv->display.read_luts = icl_read_luts; } else if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) { dev_priv->display.load_luts = glk_load_luts; dev_priv->display.read_luts = glk_read_luts; |