On Fri, Mar 31, 2023 at 03:46:05PM +0530, Ankit Nautiyal wrote:
> Start passing the sink_format, to all functions that take a bool
> ycbcr420_output as parameter. This will make the functions generic,
> and will serve as a slight step towards 4:2:2 support later.
>
> v2: Rebased.
>
> v3: Correct the checks in places concerned with pipe output. (Ville)
> Other minor styling and refactoring fixes, as suggested by Ville.
>
> Suggested-by: Ville Syrj_l_ <ville.syrjala@xxxxxxxxxxxxxxx>
Name borked here.
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_dp.c | 32 ++++++++---------
> drivers/gpu/drm/i915/display/intel_hdmi.c | 44 ++++++++++++++---------
> drivers/gpu/drm/i915/display/intel_hdmi.h | 5 +--
> 3 files changed, 45 insertions(+), 36 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index c3f3003c52ca..ce9384a0d153 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -987,7 +987,8 @@ static int intel_dp_max_tmds_clock(struct intel_dp *intel_dp)
>
> static enum drm_mode_status
> intel_dp_tmds_clock_valid(struct intel_dp *intel_dp,
> - int clock, int bpc, bool ycbcr420_output,
> + int clock, int bpc,
> + enum intel_output_format sink_format,
> bool respect_downstream_limits)
> {
> int tmds_clock, min_tmds_clock, max_tmds_clock;
> @@ -995,7 +996,7 @@ intel_dp_tmds_clock_valid(struct intel_dp *intel_dp,
> if (!respect_downstream_limits)
> return MODE_OK;
>
> - tmds_clock = intel_hdmi_tmds_clock(clock, bpc, ycbcr420_output);
> + tmds_clock = intel_hdmi_tmds_clock(clock, bpc, sink_format);
>
> min_tmds_clock = intel_dp->dfp.min_tmds_clock;
> max_tmds_clock = intel_dp_max_tmds_clock(intel_dp);
> @@ -1018,6 +1019,7 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector,
> const struct drm_display_info *info = &connector->base.display_info;
> enum drm_mode_status status;
> bool ycbcr_420_only;
> + enum intel_output_format sink_format;
>
> /* If PCON supports FRL MODE, check FRL bandwidth constraints */
> if (intel_dp->dfp.pcon_max_frl_bw) {
> @@ -1044,18 +1046,23 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector,
>
> ycbcr_420_only = drm_mode_is_420_only(info, mode);
>
> + if (ycbcr_420_only)
> + sink_format = INTEL_OUTPUT_FORMAT_YCBCR420;
> + else
> + sink_format = INTEL_OUTPUT_FORMAT_RGB;
> +
> /* Assume 8bpc for the DP++/HDMI/DVI TMDS clock check */
> status = intel_dp_tmds_clock_valid(intel_dp, target_clock,
> - 8, ycbcr_420_only, true);
> + 8, sink_format, true);
>
> if (status != MODE_OK) {
> - if (ycbcr_420_only ||
> + if (sink_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
> !connector->base.ycbcr_420_allowed ||
> !drm_mode_is_420_also(info, mode))
> return status;
> -
> + sink_format = INTEL_OUTPUT_FORMAT_YCBCR420;
> status = intel_dp_tmds_clock_valid(intel_dp, target_clock,
> - 8, true, true);
> + 8, sink_format, true);
> if (status != MODE_OK)
> return status;
> }
> @@ -1291,19 +1298,10 @@ static bool intel_dp_supports_dsc(struct intel_dp *intel_dp,
> drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd);
> }
>
> -static bool intel_dp_is_ycbcr420(struct intel_dp *intel_dp,
> - const struct intel_crtc_state *crtc_state)
> -{
> - return crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
> - (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444 &&
> - intel_dp->dfp.ycbcr_444_to_420);
> -}
> -
> static int intel_dp_hdmi_compute_bpc(struct intel_dp *intel_dp,
> const struct intel_crtc_state *crtc_state,
> int bpc, bool respect_downstream_limits)
> {
> - bool ycbcr420_output = intel_dp_is_ycbcr420(intel_dp, crtc_state);
> int clock = crtc_state->hw.adjusted_mode.crtc_clock;
>
> /*
> @@ -1323,8 +1321,8 @@ static int intel_dp_hdmi_compute_bpc(struct intel_dp *intel_dp,
>
> for (; bpc >= 8; bpc -= 2) {
> if (intel_hdmi_bpc_possible(crtc_state, bpc,
> - intel_dp->has_hdmi_sink, ycbcr420_output) &&
> - intel_dp_tmds_clock_valid(intel_dp, clock, bpc, ycbcr420_output,
> + intel_dp->has_hdmi_sink) &&
> + intel_dp_tmds_clock_valid(intel_dp, clock, bpc, crtc_state->sink_format,
> respect_downstream_limits) == MODE_OK)
> return bpc;
> }
> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
> index f3af5efd281b..22990841c1bf 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
> @@ -1871,10 +1871,11 @@ hdmi_port_clock_valid(struct intel_hdmi *hdmi,
> return MODE_OK;
> }
>
> -int intel_hdmi_tmds_clock(int clock, int bpc, bool ycbcr420_output)
> +int intel_hdmi_tmds_clock(int clock, int bpc,
> + enum intel_output_format sink_format)
> {
> /* YCBCR420 TMDS rate requirement is half the pixel clock */
> - if (ycbcr420_output)
> + if (sink_format == INTEL_OUTPUT_FORMAT_YCBCR420)
> clock /= 2;
>
> /*
> @@ -1901,7 +1902,8 @@ static bool intel_hdmi_source_bpc_possible(struct drm_i915_private *i915, int bp
> }
>
> static bool intel_hdmi_sink_bpc_possible(struct drm_connector *connector,
> - int bpc, bool has_hdmi_sink, bool ycbcr420_output)
> + int bpc, bool has_hdmi_sink,
> + enum intel_output_format sink_format)
> {
> const struct drm_display_info *info = &connector->display_info;
> const struct drm_hdmi_info *hdmi = &info->hdmi;
> @@ -1911,7 +1913,7 @@ static bool intel_hdmi_sink_bpc_possible(struct drm_connector *connector,
> if (!has_hdmi_sink)
> return false;
>
> - if (ycbcr420_output)
> + if (sink_format == INTEL_OUTPUT_FORMAT_YCBCR420)
> return hdmi->y420_dc_modes & DRM_EDID_YCBCR420_DC_36;
> else
> return info->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_36;
> @@ -1919,7 +1921,7 @@ static bool intel_hdmi_sink_bpc_possible(struct drm_connector *connector,
> if (!has_hdmi_sink)
> return false;
>
> - if (ycbcr420_output)
> + if (sink_format == INTEL_OUTPUT_FORMAT_YCBCR420)
> return hdmi->y420_dc_modes & DRM_EDID_YCBCR420_DC_30;
> else
> return info->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30;
> @@ -1933,7 +1935,8 @@ static bool intel_hdmi_sink_bpc_possible(struct drm_connector *connector,
>
> static enum drm_mode_status
> intel_hdmi_mode_clock_valid(struct drm_connector *connector, int clock,
> - bool has_hdmi_sink, bool ycbcr420_output)
> + bool has_hdmi_sink,
> + enum intel_output_format sink_format)
> {
> struct drm_i915_private *i915 = to_i915(connector->dev);
> struct intel_hdmi *hdmi = intel_attached_hdmi(to_intel_connector(connector));
> @@ -1946,12 +1949,12 @@ intel_hdmi_mode_clock_valid(struct drm_connector *connector, int clock,
> * least one color depth is accepted.
> */
> for (bpc = 12; bpc >= 8; bpc -= 2) {
> - int tmds_clock = intel_hdmi_tmds_clock(clock, bpc, ycbcr420_output);
> + int tmds_clock = intel_hdmi_tmds_clock(clock, bpc, sink_format);
>
> if (!intel_hdmi_source_bpc_possible(i915, bpc))
> continue;
>
> - if (!intel_hdmi_sink_bpc_possible(connector, bpc, has_hdmi_sink, ycbcr420_output))
> + if (!intel_hdmi_sink_bpc_possible(connector, bpc, has_hdmi_sink, sink_format))
> continue;
>
> status = hdmi_port_clock_valid(hdmi, tmds_clock, true, has_hdmi_sink);
> @@ -1976,6 +1979,7 @@ intel_hdmi_mode_valid(struct drm_connector *connector,
> int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
> bool has_hdmi_sink = intel_has_hdmi_sink(hdmi, connector->state);
> bool ycbcr_420_only;
> + enum intel_output_format sink_format;
>
> if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
> clock *= 2;
> @@ -2000,14 +2004,20 @@ intel_hdmi_mode_valid(struct drm_connector *connector,
>
> ycbcr_420_only = drm_mode_is_420_only(&connector->display_info, mode);
>
> - status = intel_hdmi_mode_clock_valid(connector, clock, has_hdmi_sink, ycbcr_420_only);
> + if (ycbcr_420_only)
> + sink_format = INTEL_OUTPUT_FORMAT_YCBCR420;
> + else
> + sink_format = INTEL_OUTPUT_FORMAT_RGB;
> +
> + status = intel_hdmi_mode_clock_valid(connector, clock, has_hdmi_sink, sink_format);
> if (status != MODE_OK) {
> if (ycbcr_420_only ||
> !connector->ycbcr_420_allowed ||
> !drm_mode_is_420_also(&connector->display_info, mode))
> return status;
>
> - status = intel_hdmi_mode_clock_valid(connector, clock, has_hdmi_sink, true);
> + sink_format = INTEL_OUTPUT_FORMAT_YCBCR420;
> + status = intel_hdmi_mode_clock_valid(connector, clock, has_hdmi_sink, sink_format);
> if (status != MODE_OK)
> return status;
> }
> @@ -2016,7 +2026,7 @@ intel_hdmi_mode_valid(struct drm_connector *connector,
> }
>
> bool intel_hdmi_bpc_possible(const struct intel_crtc_state *crtc_state,
> - int bpc, bool has_hdmi_sink, bool ycbcr420_output)
> + int bpc, bool has_hdmi_sink)
> {
> struct drm_atomic_state *state = crtc_state->uapi.state;
> struct drm_connector_state *connector_state;
> @@ -2027,7 +2037,8 @@ bool intel_hdmi_bpc_possible(const struct intel_crtc_state *crtc_state,
> if (connector_state->crtc != crtc_state->uapi.crtc)
> continue;
>
> - if (!intel_hdmi_sink_bpc_possible(connector, bpc, has_hdmi_sink, ycbcr420_output))
> + if (!intel_hdmi_sink_bpc_possible(connector, bpc, has_hdmi_sink,
> + crtc_state->sink_format))
> return false;
> }
>
> @@ -2051,8 +2062,7 @@ static bool hdmi_bpc_possible(const struct intel_crtc_state *crtc_state, int bpc
> adjusted_mode->crtc_hblank_start) % 8 == 2)
> return false;
>
> - return intel_hdmi_bpc_possible(crtc_state, bpc, crtc_state->has_hdmi_sink,
> - intel_hdmi_is_ycbcr420(crtc_state));
> + return intel_hdmi_bpc_possible(crtc_state, bpc, crtc_state->has_hdmi_sink);
> }
>
> static int intel_hdmi_compute_bpc(struct intel_encoder *encoder,
> @@ -2060,7 +2070,6 @@ static int intel_hdmi_compute_bpc(struct intel_encoder *encoder,
> int clock, bool respect_downstream_limits)
> {
> struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
> - bool ycbcr420_output = intel_hdmi_is_ycbcr420(crtc_state);
> int bpc;
>
> /*
> @@ -2078,7 +2087,8 @@ static int intel_hdmi_compute_bpc(struct intel_encoder *encoder,
> bpc = 8;
>
> for (; bpc >= 8; bpc -= 2) {
> - int tmds_clock = intel_hdmi_tmds_clock(clock, bpc, ycbcr420_output);
> + int tmds_clock = intel_hdmi_tmds_clock(clock, bpc,
> + crtc_state->sink_format);
>
> if (hdmi_bpc_possible(crtc_state, bpc) &&
> hdmi_port_clock_valid(intel_hdmi, tmds_clock,
> @@ -2108,7 +2118,7 @@ static int intel_hdmi_compute_clock(struct intel_encoder *encoder,
> return bpc;
>
> crtc_state->port_clock =
> - intel_hdmi_tmds_clock(clock, bpc, intel_hdmi_is_ycbcr420(crtc_state));
> + intel_hdmi_tmds_clock(clock, bpc, crtc_state->sink_format);
>
> /*
> * pipe_bpp could already be below 8bpc due to
> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.h b/drivers/gpu/drm/i915/display/intel_hdmi.h
> index 774dda2376ed..d1e27247b657 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdmi.h
> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.h
> @@ -9,6 +9,7 @@
> #include <linux/types.h>
>
> enum hdmi_infoframe_type;
> +enum intel_output_format;
> enum port;
> struct drm_connector;
> struct drm_connector_state;
> @@ -45,8 +46,8 @@ void intel_read_infoframe(struct intel_encoder *encoder,
> bool intel_hdmi_limited_color_range(const struct intel_crtc_state *crtc_state,
> const struct drm_connector_state *conn_state);
> bool intel_hdmi_bpc_possible(const struct intel_crtc_state *crtc_state,
> - int bpc, bool has_hdmi_sink, bool ycbcr420_output);
> -int intel_hdmi_tmds_clock(int clock, int bpc, bool ycbcr420_output);
> + int bpc, bool has_hdmi_sink);
> +int intel_hdmi_tmds_clock(int clock, int bpc, enum intel_output_format sink_format);
> int intel_hdmi_dsc_get_bpp(int src_fractional_bpp, int slice_width,
> int num_slices, int output_format, bool hdmi_all_bpp,
> int hdmi_max_chunk_bytes);
> --
> 2.25.1
--
Ville Syrjälä
Intel
