[Intel-gfx] [PATCH v12 2/8] drm/i915: Add CRTC output format YCBCR 4:2:0
Shashank Sharma
shashank.sharma at intel.com
Fri Oct 12 06:23:08 UTC 2018
From: Shashank Sharma <shashank.sharma at linux.intel.com>
Currently, we are using a bool in CRTC state (state->ycbcr420),
to indicate modeset, that the output format is YCBCR 4:2:0. Now in
order to support other YCBCR formats, we will need more such flags.
This patch adds a new enum parameter for YCBCR 4:2:0 outputs, in the
CRTC output formats and then plugs it during the modeset.
V3: Added this patch in the series, to address review comments from
second patchset.
V4: Added r-b from Maarten (on v3)
Addressed review comments from Ville:
- Change the enum name to intel_output_format.
- Start the enum value (INVALID) from 0 instaed of 1.
- Set the crtc's output_format to RGB in encoder's compute_config.
V5: Broke previous patch 1 into two parts,
- first patch to add CRTC output format in general
- second patch (this one) to add YCBCR 4:2:0 output
format specifically.
- Use ARRAY_SIZE(format_str) for output format validity check (Ville)
V6: Added a separate function to calculate crtc_state->output_format, and
calling it from various get_config function (Fix CI build warning)
V7: Fixed checkpatch warnings for alignment
V8: Rebase
V9: Rebase
V10: Rebase
V11: Addressed review comments from Ville:
- Change check for CRTC output format from > ARRAY_SIZE to >= ARRAY_SIZE.
- Check for values < INTEL_OUTPUT_FORMAT_RGB is unnecessary.
- No need to get CRTC YCBCR config, for pre-BDW functions.
Added Ville's r-b.
Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/intel_color.c | 2 +-
drivers/gpu/drm/i915/intel_ddi.c | 2 +-
drivers/gpu/drm/i915/intel_display.c | 67 +++++++++++++++++++++---------------
drivers/gpu/drm/i915/intel_drv.h | 4 +--
drivers/gpu/drm/i915/intel_hdmi.c | 6 ++--
drivers/gpu/drm/i915/intel_panel.c | 2 +-
6 files changed, 46 insertions(+), 37 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index c6a7bea..bf9d8f6 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -149,7 +149,7 @@ static void ilk_load_csc_matrix(struct drm_crtc_state *crtc_state)
if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv))
limited_color_range = intel_crtc_state->limited_color_range;
- if (intel_crtc_state->ycbcr420) {
+ if (intel_crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) {
ilk_load_ycbcr_conversion_matrix(intel_crtc);
return;
} else if (crtc_state->ctm) {
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 47960c9..7d868f5 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1517,7 +1517,7 @@ static void ddi_dotclock_get(struct intel_crtc_state *pipe_config)
else
dotclock = pipe_config->port_clock;
- if (pipe_config->ycbcr420)
+ if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420)
dotclock *= 2;
if (pipe_config->pixel_multiplier)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 7e7742a..b5c5dbb 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4839,7 +4839,8 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach,
if (pixel_format == DRM_FORMAT_NV12)
need_scaling = true;
- if (crtc_state->ycbcr420 && scaler_user == SKL_CRTC_INDEX)
+ if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 &&
+ scaler_user == SKL_CRTC_INDEX)
need_scaling = true;
/*
@@ -6590,7 +6591,8 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc,
return -EINVAL;
}
- if (pipe_config->ycbcr420 && pipe_config->base.ctm) {
+ if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 &&
+ pipe_config->base.ctm) {
/*
* There is only one pipe CSC unit per pipe, and we need that
* for output conversion from RGB->YCBCR. So if CTM is already
@@ -7788,6 +7790,35 @@ static void chv_crtc_clock_get(struct intel_crtc *crtc,
pipe_config->port_clock = chv_calc_dpll_params(refclk, &clock);
}
+static void intel_get_crtc_ycbcr_config(struct intel_crtc *crtc,
+ struct intel_crtc_state *pipe_config)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ enum intel_output_format output = INTEL_OUTPUT_FORMAT_RGB;
+
+ if (IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9) {
+ u32 tmp = I915_READ(PIPEMISC(crtc->pipe));
+
+ if (tmp & PIPEMISC_OUTPUT_COLORSPACE_YUV) {
+ bool ycbcr420_enabled = tmp & PIPEMISC_YUV420_ENABLE;
+ bool blend = tmp & PIPEMISC_YUV420_MODE_FULL_BLEND;
+
+ if (ycbcr420_enabled) {
+ /* We support 4:2:0 in full blend mode only */
+ if (!blend)
+ output = INTEL_OUTPUT_FORMAT_INVALID;
+ else if (!(IS_GEMINILAKE(dev_priv) ||
+ INTEL_GEN(dev_priv) >= 10))
+ output = INTEL_OUTPUT_FORMAT_INVALID;
+ else
+ output = INTEL_OUTPUT_FORMAT_YCBCR420;
+ }
+ }
+ }
+
+ pipe_config->output_format = output;
+}
+
static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
struct intel_crtc_state *pipe_config)
{
@@ -8422,9 +8453,9 @@ static void haswell_set_pipemisc(const struct intel_crtc_state *crtc_state)
if (crtc_state->dither)
val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP;
- if (crtc_state->ycbcr420) {
- val |= PIPEMISC_OUTPUT_COLORSPACE_YUV |
- PIPEMISC_YUV420_ENABLE |
+ if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) {
+ val |= PIPEMISC_OUTPUT_COLORSPACE_YUV;
+ val |= PIPEMISC_YUV420_ENABLE |
PIPEMISC_YUV420_MODE_FULL_BLEND;
}
@@ -9485,28 +9516,11 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
}
intel_get_pipe_src_size(crtc, pipe_config);
+ intel_get_crtc_ycbcr_config(crtc, pipe_config);
pipe_config->gamma_mode =
I915_READ(GAMMA_MODE(crtc->pipe)) & GAMMA_MODE_MODE_MASK;
- if (IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9) {
- u32 tmp = I915_READ(PIPEMISC(crtc->pipe));
- bool clrspace_yuv = tmp & PIPEMISC_OUTPUT_COLORSPACE_YUV;
-
- if (IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
- bool blend_mode_420 = tmp &
- PIPEMISC_YUV420_MODE_FULL_BLEND;
-
- pipe_config->ycbcr420 = tmp & PIPEMISC_YUV420_ENABLE;
- if (pipe_config->ycbcr420 != clrspace_yuv ||
- pipe_config->ycbcr420 != blend_mode_420)
- DRM_DEBUG_KMS("Bad 4:2:0 mode (%08x)\n", tmp);
- } else if (clrspace_yuv) {
- DRM_DEBUG_KMS("YCbCr 4:2:0 Unsupported\n");
- }
- }
-
- pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
power_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
if (intel_display_power_get_if_enabled(dev_priv, power_domain)) {
power_domain_mask |= BIT_ULL(power_domain);
@@ -10925,11 +10939,12 @@ static void snprintf_output_types(char *buf, size_t len,
static const char * const output_format_str[] = {
[INTEL_OUTPUT_FORMAT_INVALID] = "Invalid",
[INTEL_OUTPUT_FORMAT_RGB] = "RGB",
+ [INTEL_OUTPUT_FORMAT_YCBCR420] = "YCBCR4:2:0",
};
static const char *output_formats(enum intel_output_format format)
{
- if (format != INTEL_OUTPUT_FORMAT_RGB)
+ if (format >= ARRAY_SIZE(output_format_str))
format = INTEL_OUTPUT_FORMAT_INVALID;
return output_format_str[format];
}
@@ -10965,9 +10980,6 @@ static void intel_dump_pipe_config(struct intel_crtc *crtc,
pipe_config->fdi_lanes,
&pipe_config->fdi_m_n);
- if (pipe_config->ycbcr420)
- DRM_DEBUG_KMS("YCbCr 4:2:0 output enabled\n");
-
if (intel_crtc_has_dp_encoder(pipe_config)) {
intel_dump_m_n_config(pipe_config, "dp m_n",
pipe_config->lane_count, &pipe_config->dp_m_n);
@@ -11554,7 +11566,6 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
PIPE_CONF_CHECK_BOOL(hdmi_scrambling);
PIPE_CONF_CHECK_BOOL(hdmi_high_tmds_clock_ratio);
PIPE_CONF_CHECK_BOOL_INCOMPLETE(has_infoframe);
- PIPE_CONF_CHECK_BOOL(ycbcr420);
PIPE_CONF_CHECK_BOOL_INCOMPLETE(has_audio);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index ff44fad..01530fa 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -715,6 +715,7 @@ struct intel_crtc_wm_state {
enum intel_output_format {
INTEL_OUTPUT_FORMAT_INVALID,
INTEL_OUTPUT_FORMAT_RGB,
+ INTEL_OUTPUT_FORMAT_YCBCR420,
};
struct intel_crtc_state {
@@ -904,9 +905,6 @@ struct intel_crtc_state {
/* HDMI High TMDS char rate ratio */
bool hdmi_high_tmds_clock_ratio;
- /* output format is YCBCR 4:2:0 */
- bool ycbcr420;
-
/* Output format RGB/YCBCR etc */
enum intel_output_format output_format;
};
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 21be074..33e1a9a 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -478,7 +478,7 @@ static void intel_hdmi_set_avi_infoframe(struct intel_encoder *encoder,
return;
}
- if (crtc_state->ycbcr420)
+ if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420)
frame.avi.colorspace = HDMI_COLORSPACE_YUV420;
else
frame.avi.colorspace = HDMI_COLORSPACE_RGB;
@@ -1619,7 +1619,7 @@ static bool hdmi_deep_color_possible(const struct intel_crtc_state *crtc_state,
if (connector_state->crtc != crtc_state->base.crtc)
continue;
- if (crtc_state->ycbcr420) {
+ if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) {
const struct drm_hdmi_info *hdmi = &info->hdmi;
if (bpc == 12 && !(hdmi->y420_dc_modes &
@@ -1664,7 +1664,7 @@ intel_hdmi_ycbcr420_config(struct drm_connector *connector,
*clock_12bpc /= 2;
*clock_10bpc /= 2;
*clock_8bpc /= 2;
- config->ycbcr420 = true;
+ config->output_format = INTEL_OUTPUT_FORMAT_YCBCR420;
/* YCBCR 420 output conversion needs a scaler */
if (skl_update_scaler_crtc(config)) {
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 7df9bcd..20582cf 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -111,7 +111,7 @@ intel_pch_panel_fitting(struct intel_crtc *intel_crtc,
/* Native modes don't need fitting */
if (adjusted_mode->crtc_hdisplay == pipe_config->pipe_src_w &&
adjusted_mode->crtc_vdisplay == pipe_config->pipe_src_h &&
- !pipe_config->ycbcr420)
+ pipe_config->output_format != INTEL_OUTPUT_FORMAT_YCBCR420)
goto done;
switch (fitting_mode) {
--
2.7.4
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