From: Stanislav Lisovskiy <[email protected]> Implement required changes for mode validation and compute config, to support Ultrajoiner. This also includes required DSC changes and checks.
v2: -Use enum for Ultrajoiner pipes. -Drop changes for HDMI. -Separate out DSC changes into another patch. Signed-off-by: Stanislav Lisovskiy <[email protected]> Signed-off-by: Ankit Nautiyal <[email protected]> --- .../drm/i915/display/intel_display_types.h | 1 + drivers/gpu/drm/i915/display/intel_dp.c | 70 +++++++++++++++---- drivers/gpu/drm/i915/display/intel_dp.h | 7 +- drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 ++-- 4 files changed, 70 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 14c78b18ffa1..a36881b047e3 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -616,6 +616,7 @@ struct intel_hdcp { enum intel_joiner_pipe_count { INTEL_PIPE_JOINER_NONE = 0, INTEL_PIPE_JOINER_BIG = 2, + INTEL_PIPE_JOINER_ULTRA = 4, INTEL_PIPE_JOINER_INVALID, }; diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index ff4c123de0ed..c0a1f2603274 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -755,24 +755,33 @@ u32 get_max_compressed_bpp_with_joiner(struct drm_i915_private *i915, enum intel_joiner_pipe_count joined_pipes) { u32 max_bpp_small_joiner_ram; + u32 max_bpp_joiner; /* Small Joiner Check: output bpp <= joiner RAM (bits) / Horiz. width */ max_bpp_small_joiner_ram = small_joiner_ram_size_bits(i915) / mode_hdisplay; + max_bpp_joiner = max_bpp_small_joiner_ram; - if (joined_pipes == INTEL_PIPE_JOINER_BIG) { - int bigjoiner_interface_bits = DISPLAY_VER(i915) >= 14 ? 36 : 24; + /* if ultra joiner is enabled, we have 2 bigjoiners enabled */ + if (joined_pipes == INTEL_PIPE_JOINER_BIG || + joined_pipes == INTEL_PIPE_JOINER_ULTRA) { + int joiner_interface_bits = DISPLAY_VER(i915) >= 14 ? 36 : 24; /* With bigjoiner multiple dsc engines are used in parallel so PPC is 2 */ int ppc = 2; - u32 max_bpp_bigjoiner = - i915->display.cdclk.max_cdclk_freq * ppc * bigjoiner_interface_bits / + max_bpp_joiner = + i915->display.cdclk.max_cdclk_freq * ppc * joiner_interface_bits / intel_dp_mode_to_fec_clock(mode_clock); max_bpp_small_joiner_ram *= 2; - return min(max_bpp_small_joiner_ram, max_bpp_bigjoiner); + return min(max_bpp_small_joiner_ram, max_bpp_joiner); + } + if (joined_pipes == INTEL_PIPE_JOINER_ULTRA) { + /* both get multiplied by 2, because ram bits/ppc now doubled */ + max_bpp_small_joiner_ram *= 2; + max_bpp_joiner *= 2; } - return max_bpp_small_joiner_ram; + return min(max_bpp_small_joiner_ram, max_bpp_joiner); } u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915, @@ -878,6 +887,10 @@ u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector, if (joined_pipes == INTEL_PIPE_JOINER_BIG && test_slice_count < 4) continue; + /* ultrajoiner needs 2 bigjoiners to be enabled */ + if (joined_pipes == INTEL_PIPE_JOINER_ULTRA && test_slice_count < 8) + continue; + if (min_slice_count <= test_slice_count) return test_slice_count; } @@ -1154,9 +1167,9 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector, return MODE_OK; } -bool intel_dp_need_joiner(struct intel_dp *intel_dp, - struct intel_connector *connector, - int hdisplay, int clock) +bool intel_dp_need_bigjoiner(struct intel_dp *intel_dp, + struct intel_connector *connector, + int hdisplay, int clock) { struct drm_i915_private *i915 = dp_to_i915(intel_dp); @@ -1187,6 +1200,25 @@ bool intel_dp_has_dsc(const struct intel_connector *connector) return true; } +static +bool intel_can_ultrajoiner(const struct intel_encoder *encoder) +{ + struct drm_i915_private *i915 = to_i915(encoder->base.dev); + + return IS_DGFX(i915) && DISPLAY_VER(i915) >= 14; +} + +bool intel_dp_need_ultrajoiner(struct intel_dp *dp, int clock) +{ + const struct intel_encoder *encoder = &dp_to_dig_port(dp)->base; + struct drm_i915_private *i915 = to_i915(encoder->base.dev); + + if (!intel_can_ultrajoiner(encoder)) + return false; + + return clock > (i915->display.cdclk.max_dotclk_freq * 2); +} + static enum drm_mode_status intel_dp_mode_valid(struct drm_connector *_connector, struct drm_display_mode *mode) @@ -1223,11 +1255,15 @@ intel_dp_mode_valid(struct drm_connector *_connector, target_clock = fixed_mode->clock; } - if (intel_dp_need_joiner(intel_dp, connector, - mode->hdisplay, target_clock)) { + if (intel_dp_need_ultrajoiner(intel_dp, target_clock)) { + joined_pipes = INTEL_PIPE_JOINER_ULTRA; + max_dotclk *= INTEL_PIPE_JOINER_ULTRA; + } else if (intel_dp_need_bigjoiner(intel_dp, connector, + mode->hdisplay, target_clock)) { joined_pipes = INTEL_PIPE_JOINER_BIG; max_dotclk *= INTEL_PIPE_JOINER_BIG; } + if (target_clock > max_dotclk) return MODE_CLOCK_HIGH; @@ -2401,8 +2437,10 @@ bool intel_dp_joiner_needs_dsc(struct drm_i915_private *i915, * Pipe joiner needs compression up to display 12 due to bandwidth * limitation. DG2 onwards pipe joiner can be enabled without * compression. + * Ultrajoiner always needs compression. */ - return DISPLAY_VER(i915) < 13 && (joined_pipes == INTEL_PIPE_JOINER_BIG); + return (DISPLAY_VER(i915) < 13 && (joined_pipes == INTEL_PIPE_JOINER_BIG)) || + joined_pipes == INTEL_PIPE_JOINER_ULTRA; } static int @@ -2427,9 +2465,11 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, !intel_dp_supports_fec(intel_dp, connector, pipe_config)) return -EINVAL; - if (intel_dp_need_joiner(intel_dp, connector, - adjusted_mode->crtc_hdisplay, - adjusted_mode->crtc_clock)) + if (intel_dp_need_ultrajoiner(intel_dp, adjusted_mode->crtc_clock)) + pipe_config->joiner_pipes = GENMASK(crtc->pipe + 3, crtc->pipe); + else if (intel_dp_need_bigjoiner(intel_dp, connector, + adjusted_mode->crtc_hdisplay, + adjusted_mode->crtc_clock)) pipe_config->joiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe); joined_pipes = intel_joiner_num_pipes(pipe_config); diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h index acd05dc7b8ad..6c607a218fbc 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -153,9 +153,10 @@ int intel_dp_dsc_sink_max_compressed_bpp(const struct intel_connector *connector u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector, int mode_clock, int mode_hdisplay, enum intel_joiner_pipe_count joined_pipes); -bool intel_dp_need_joiner(struct intel_dp *intel_dp, - struct intel_connector *connector, - int hdisplay, int clock); +bool intel_dp_need_bigjoiner(struct intel_dp *intel_dp, + struct intel_connector *connector, + int hdisplay, int clock); +bool intel_dp_need_ultrajoiner(struct intel_dp *intel_dp, int clock); static inline unsigned int intel_dp_unused_lane_mask(int lane_count) { diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 31a2acb7fa11..21b23f8eb5e7 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -579,9 +579,11 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder, if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) return -EINVAL; - if (intel_dp_need_joiner(intel_dp, connector, - adjusted_mode->crtc_hdisplay, - adjusted_mode->crtc_clock)) + if (intel_dp_need_ultrajoiner(intel_dp, adjusted_mode->crtc_clock)) + pipe_config->joiner_pipes = GENMASK(crtc->pipe + 3, crtc->pipe); + else if (intel_dp_need_bigjoiner(intel_dp, connector, + adjusted_mode->crtc_hdisplay, + adjusted_mode->crtc_clock)) pipe_config->joiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe); pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB; @@ -1439,8 +1441,11 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector, * corresponding link capabilities of the sink) in case the * stream is uncompressed for it by the last branch device. */ - if (intel_dp_need_joiner(intel_dp, intel_connector, - mode->hdisplay, target_clock)) { + if (intel_dp_need_ultrajoiner(intel_dp, target_clock)) { + joined_pipes = INTEL_PIPE_JOINER_BIG; + max_dotclk *= INTEL_PIPE_JOINER_BIG; + } else if (intel_dp_need_bigjoiner(intel_dp, intel_connector, + mode->hdisplay, target_clock)) { joined_pipes = INTEL_PIPE_JOINER_BIG; max_dotclk *= INTEL_PIPE_JOINER_BIG; } -- 2.45.2
