On Wed, Jul 15, 2020 at 03:42:17PM -0700, Manasi Navare wrote:
> From: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
>
> Make vdsc work when no output is enabled. The big joiner needs VDSC
> on the slave, so enable it and set the appropriate bits.
> Also update timestamping constants, because slave crtc's are not
> updated in drm_atomic_helper_update_legacy_modeset_state().
>
> This should be enough to bring up CRTC's in a big joiner configuration,
> without any plane configuration on the second pipe yet.
>
> HOWEVER, we still bring up the crtc's in the wrong order. We need to
> make sure that the master crtc is brought up after the slave crtc.
> This is done correctly later in this series.
>
> The next steps are to enable planes correctly, and make sure we enable
> and update both master and slave in the correct order.
>
> v2:
> * Manual rebase (Manasi)
>
> v3:
> * Rebase (Manasi)
>
> v4:
> * Rebase (Manasi)
>
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> Signed-off-by: Manasi Navare <manasi.d.navare@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/icl_dsi.c | 2 -
> drivers/gpu/drm/i915/display/intel_ddi.c | 68 +++-
> drivers/gpu/drm/i915/display/intel_display.c | 377 ++++++++++++------
> .../drm/i915/display/intel_display_types.h | 1 +
> drivers/gpu/drm/i915/display/intel_dp.c | 6 +-
> drivers/gpu/drm/i915/display/intel_vdsc.c | 199 ++++-----
> drivers/gpu/drm/i915/display/intel_vdsc.h | 7 +-
> 7 files changed, 414 insertions(+), 246 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
> index 8c55f5bee9ab..26f7372b4c25 100644
> --- a/drivers/gpu/drm/i915/display/icl_dsi.c
> +++ b/drivers/gpu/drm/i915/display/icl_dsi.c
> @@ -1454,8 +1454,6 @@ static void gen11_dsi_get_config(struct intel_encoder *encoder,
> struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
>
> - intel_dsc_get_config(encoder, pipe_config);
> -
> /* FIXME: adapt icl_ddi_clock_get() for DSI and use that? */
> pipe_config->port_clock = intel_dpll_get_freq(i915,
> pipe_config->shared_dpll);
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 424d59671561..dd97d725ae65 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -28,6 +28,7 @@
> #include <drm/drm_scdc_helper.h>
>
> #include "i915_drv.h"
> +#include "i915_trace.h"
> #include "intel_audio.h"
> #include "intel_combo_phy.h"
> #include "intel_connector.h"
> @@ -2040,12 +2041,6 @@ static void intel_ddi_get_power_domains(struct intel_encoder *encoder,
> intel_display_power_get(dev_priv,
> intel_ddi_main_link_aux_domain(dig_port));
>
> - /*
> - * VDSC power is needed when DSC is enabled
> - */
> - if (crtc_state->dsc.compression_enable)
> - intel_display_power_get(dev_priv,
> - intel_dsc_power_domain(crtc_state));
> }
>
> void intel_ddi_enable_pipe_clock(struct intel_encoder *encoder,
> @@ -3313,7 +3308,8 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
>
> /* 7.l Configure and enable FEC if needed */
> intel_ddi_enable_fec(encoder, crtc_state);
> - intel_dsc_enable(encoder, crtc_state);
> + if (!crtc_state->bigjoiner)
> + intel_dsc_enable(encoder, crtc_state);
> }
>
> static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
> @@ -3384,7 +3380,8 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
> if (!is_mst)
> intel_ddi_enable_pipe_clock(encoder, crtc_state);
>
> - intel_dsc_enable(encoder, crtc_state);
> + if (!crtc_state->bigjoiner)
> + intel_dsc_enable(encoder, crtc_state);
> }
>
> static void intel_ddi_pre_enable_dp(struct intel_atomic_state *state,
> @@ -3639,6 +3636,21 @@ static void intel_ddi_post_disable(struct intel_atomic_state *state,
> ilk_pfit_disable(old_crtc_state);
> }
>
> + if (old_crtc_state->bigjoiner_linked_crtc) {
> + struct intel_atomic_state *state =
> + to_intel_atomic_state(old_crtc_state->uapi.state);
> + struct intel_crtc *slave =
> + old_crtc_state->bigjoiner_linked_crtc;
> + const struct intel_crtc_state *old_slave_crtc_state =
> + intel_atomic_get_old_crtc_state(state, slave);
> +
> + intel_crtc_vblank_off(old_slave_crtc_state);
> + trace_intel_pipe_disable(slave);
> +
> + intel_dsc_disable(old_slave_crtc_state);
> + skl_scaler_disable(old_slave_crtc_state);
> + }
> +
> /*
> * When called from DP MST code:
> * - old_conn_state will be NULL
> @@ -3853,7 +3865,8 @@ static void intel_enable_ddi(struct intel_atomic_state *state,
> {
> drm_WARN_ON(state->base.dev, crtc_state->has_pch_encoder);
>
> - intel_ddi_enable_transcoder_func(encoder, crtc_state);
> + if (!crtc_state->bigjoiner_slave)
> + intel_ddi_enable_transcoder_func(encoder, crtc_state);
>
> intel_enable_pipe(crtc_state);
>
> @@ -4200,8 +4213,8 @@ static void bdw_get_trans_port_sync_config(struct intel_crtc_state *crtc_state)
> crtc_state->sync_mode_slaves_mask);
> }
>
> -void intel_ddi_get_config(struct intel_encoder *encoder,
> - struct intel_crtc_state *pipe_config)
> +static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
> + struct intel_crtc_state *pipe_config)
> {
> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->uapi.crtc);
> @@ -4209,13 +4222,10 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
> struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
> u32 temp, flags = 0;
>
> - /* XXX: DSI transcoder paranoia */
> - if (drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder)))
> + temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
> + if (!(temp & TRANS_DDI_FUNC_ENABLE))
> return;
>
> - intel_dsc_get_config(encoder, pipe_config);
> -
> - temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
> if (temp & TRANS_DDI_PHSYNC)
> flags |= DRM_MODE_FLAG_PHSYNC;
> else
> @@ -4323,6 +4333,29 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
> intel_dp->regs.dp_tp_ctl = TGL_DP_TP_CTL(transcoder);
> intel_dp->regs.dp_tp_status = TGL_DP_TP_STATUS(transcoder);
> }
> +}
> +
> +void intel_ddi_get_config(struct intel_encoder *encoder,
> + struct intel_crtc_state *pipe_config)
> +{
> + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> + enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
> +
> + /* XXX: DSI transcoder paranoia */
> + if (WARN_ON(transcoder_is_dsi(cpu_transcoder)))
> + return;
> +
> + intel_ddi_read_func_ctl(encoder, pipe_config);
> + if (pipe_config->bigjoiner_slave) {
> + /* read out pipe settings from master */
> + enum transcoder save = pipe_config->cpu_transcoder;
> +
> + /* Our own transcoder needs to be disabled when reading it in intel_ddi_read_func_ctl() */
> + WARN_ON(pipe_config->output_types);
> + pipe_config->cpu_transcoder = (enum transcoder)pipe_config->bigjoiner_linked_crtc->pipe;
> + intel_ddi_read_func_ctl(encoder, pipe_config);
> + pipe_config->cpu_transcoder = save;
> + }
>
> pipe_config->has_audio =
> intel_ddi_is_audio_enabled(dev_priv, cpu_transcoder);
> @@ -4348,7 +4381,8 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
> dev_priv->vbt.edp.bpp = pipe_config->pipe_bpp;
> }
>
> - intel_ddi_clock_get(encoder, pipe_config);
> + if (!pipe_config->bigjoiner_slave)
> + intel_ddi_clock_get(encoder, pipe_config);
>
> if (IS_GEN9_LP(dev_priv))
> pipe_config->lane_lat_optim_mask =
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 955e19abb563..1cda8900d8f5 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -7023,6 +7023,45 @@ static void hsw_set_frame_start_delay(const struct intel_crtc_state *crtc_state)
> intel_de_write(dev_priv, reg, val);
> }
>
> +static void tgl_ddi_bigjoiner_pre_enable(struct intel_atomic_state *state,
> + const struct intel_crtc_state *crtc_state)
> +{
> + struct intel_crtc *master = to_intel_crtc(crtc_state->uapi.crtc);
> + struct intel_crtc_state *master_crtc_state;
> + struct drm_connector_state *conn_state;
> + struct drm_connector *conn;
> + struct intel_encoder *encoder = NULL;
> + int i;
> +
> + if (crtc_state->bigjoiner_slave)
> + master = crtc_state->bigjoiner_linked_crtc;
> +
> + master_crtc_state = intel_atomic_get_new_crtc_state(state, master);
> +
> + for_each_new_connector_in_state(&state->base, conn, conn_state, i) {
> + if (conn_state->crtc != &master->base)
> + continue;
> +
> + encoder = to_intel_encoder(conn_state->best_encoder);
> + break;
> + }
> +
> + if (!crtc_state->bigjoiner_slave) {
> + /* need to enable VDSC, which we skipped in pre-enable */
> + intel_dsc_enable(encoder, crtc_state);
> + } else {
> + /*
> + * Enable sequence steps 1-7 on bigjoiner master
> + */
> + intel_encoders_pre_pll_enable(state, master);
> + intel_enable_shared_dpll(master_crtc_state);
> + intel_encoders_pre_enable(state, master);
> +
> + /* and DSC on slave */
> + intel_dsc_enable(NULL, crtc_state);
> + }
> +}
> +
> static void hsw_crtc_enable(struct intel_atomic_state *state,
> struct intel_crtc *crtc)
> {
> @@ -7036,34 +7075,39 @@ static void hsw_crtc_enable(struct intel_atomic_state *state,
> if (drm_WARN_ON(&dev_priv->drm, crtc->active))
> return;
>
> - intel_encoders_pre_pll_enable(state, crtc);
> -
> - if (new_crtc_state->shared_dpll)
> - intel_enable_shared_dpll(new_crtc_state);
> + if (!new_crtc_state->bigjoiner) {
> + intel_encoders_pre_pll_enable(state, crtc);
>
> - intel_encoders_pre_enable(state, crtc);
> + if (new_crtc_state->shared_dpll)
> + intel_enable_shared_dpll(new_crtc_state);
>
> - if (!transcoder_is_dsi(cpu_transcoder))
> - intel_set_transcoder_timings(new_crtc_state);
> + intel_encoders_pre_enable(state, crtc);
> + } else {
> + tgl_ddi_bigjoiner_pre_enable(state, new_crtc_state);
> + }
>
> intel_set_pipe_src_size(new_crtc_state);
> + if (INTEL_GEN(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
> + bdw_set_pipemisc(new_crtc_state);
>
> - if (cpu_transcoder != TRANSCODER_EDP &&
> - !transcoder_is_dsi(cpu_transcoder))
> - intel_de_write(dev_priv, PIPE_MULT(cpu_transcoder),
> - new_crtc_state->pixel_multiplier - 1);
> + if (!new_crtc_state->bigjoiner_slave && !transcoder_is_dsi(cpu_transcoder)) {
> + if (!transcoder_is_dsi(cpu_transcoder))
> + intel_set_transcoder_timings(new_crtc_state);
>
> - if (new_crtc_state->has_pch_encoder)
> - intel_cpu_transcoder_set_m_n(new_crtc_state,
> - &new_crtc_state->fdi_m_n, NULL);
> + if (cpu_transcoder != TRANSCODER_EDP &&
> + !transcoder_is_dsi(cpu_transcoder))
> + intel_de_write(dev_priv, PIPE_MULT(cpu_transcoder),
> + new_crtc_state->pixel_multiplier - 1);
> +
> + if (new_crtc_state->has_pch_encoder)
> + intel_cpu_transcoder_set_m_n(new_crtc_state,
> + &new_crtc_state->fdi_m_n, NULL);
>
> - if (!transcoder_is_dsi(cpu_transcoder)) {
> hsw_set_frame_start_delay(new_crtc_state);
> - hsw_set_pipeconf(new_crtc_state);
> }
>
> - if (INTEL_GEN(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
> - bdw_set_pipemisc(new_crtc_state);
> + if (!transcoder_is_dsi(cpu_transcoder))
> + hsw_set_pipeconf(new_crtc_state);
>
> crtc->active = true;
>
> @@ -7099,6 +7143,11 @@ static void hsw_crtc_enable(struct intel_atomic_state *state,
> if (INTEL_GEN(dev_priv) >= 11)
> icl_pipe_mbus_enable(crtc);
>
> + if (new_crtc_state->bigjoiner_slave) {
> + trace_intel_pipe_enable(crtc);
> + intel_crtc_vblank_on(new_crtc_state);
> + }
> +
> intel_encoders_enable(state, crtc);
>
> if (psl_clkgate_wa) {
> @@ -7381,6 +7430,9 @@ static u64 get_crtc_power_domains(struct intel_crtc_state *crtc_state)
> if (crtc_state->shared_dpll)
> mask |= BIT_ULL(POWER_DOMAIN_DISPLAY_CORE);
>
> + if (crtc_state->dsc.compression_enable)
> + mask |= BIT_ULL(intel_dsc_power_domain(crtc_state));
> +
> return mask;
> }
>
> @@ -7999,6 +8051,30 @@ static u32 ilk_pipe_pixel_rate(const struct intel_crtc_state *crtc_state)
> pfit_w * pfit_h);
> }
>
> +static void intel_encoder_get_config(struct intel_encoder *encoder,
> + struct intel_crtc_state *crtc_state)
> +{
> + struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
> +
> + encoder->get_config(encoder, crtc_state);
> +
> + *pipe_mode = crtc_state->hw.adjusted_mode;
> + if (crtc_state->bigjoiner) {
> + /*
> + * transcoder is programmed to the full mode,
> + * but pipe timings are half of the transcoder mode
> + */
> + pipe_mode->crtc_hdisplay /= 2;
> + pipe_mode->crtc_hblank_start /= 2;
> + pipe_mode->crtc_hblank_end /= 2;
> + pipe_mode->crtc_hsync_start /= 2;
> + pipe_mode->crtc_hsync_end /= 2;
> + pipe_mode->crtc_htotal /= 2;
> + pipe_mode->crtc_hskew /= 2;
> + pipe_mode->crtc_clock /= 2;
> + }
> +}
> +
> static void intel_crtc_compute_pixel_rate(struct intel_crtc_state *crtc_state)
> {
> struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
> @@ -8910,20 +8986,22 @@ static void intel_get_pipe_src_size(struct intel_crtc *crtc,
> void intel_mode_from_pipe_config(struct drm_display_mode *mode,
> struct intel_crtc_state *pipe_config)
> {
> - mode->hdisplay = pipe_config->hw.adjusted_mode.crtc_hdisplay;
> - mode->htotal = pipe_config->hw.adjusted_mode.crtc_htotal;
> - mode->hsync_start = pipe_config->hw.adjusted_mode.crtc_hsync_start;
> - mode->hsync_end = pipe_config->hw.adjusted_mode.crtc_hsync_end;
> + struct drm_display_mode *hw_mode = &pipe_config->hw.adjusted_mode;
>
> - mode->vdisplay = pipe_config->hw.adjusted_mode.crtc_vdisplay;
> - mode->vtotal = pipe_config->hw.adjusted_mode.crtc_vtotal;
> - mode->vsync_start = pipe_config->hw.adjusted_mode.crtc_vsync_start;
> - mode->vsync_end = pipe_config->hw.adjusted_mode.crtc_vsync_end;
> + mode->hdisplay = hw_mode->crtc_hdisplay;
> + mode->htotal = hw_mode->crtc_htotal;
> + mode->hsync_start = hw_mode->crtc_hsync_start;
> + mode->hsync_end = hw_mode->crtc_hsync_end;
>
> - mode->flags = pipe_config->hw.adjusted_mode.flags;
> + mode->vdisplay = hw_mode->crtc_vdisplay;
> + mode->vtotal = hw_mode->crtc_vtotal;
> + mode->vsync_start = hw_mode->crtc_vsync_start;
> + mode->vsync_end = hw_mode->crtc_vsync_end;
> +
> + mode->flags = hw_mode->flags;
> mode->type = DRM_MODE_TYPE_DRIVER;
>
> - mode->clock = pipe_config->hw.adjusted_mode.crtc_clock;
> + mode->clock = hw_mode->crtc_clock;
>
> drm_mode_set_name(mode);
> }
> @@ -11081,6 +11159,9 @@ static void hsw_get_ddi_port_state(struct intel_crtc *crtc,
> } else {
> tmp = intel_de_read(dev_priv,
> TRANS_DDI_FUNC_CTL(cpu_transcoder));
> + if (!(tmp & TRANS_DDI_FUNC_ENABLE))
> + return;
> +
> if (INTEL_GEN(dev_priv) >= 12)
> port = TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
> else
> @@ -11153,12 +11234,20 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
> drm_WARN_ON(&dev_priv->drm, active);
> active = true;
> }
> + intel_dsc_get_config(pipe_config);
>
> - if (!active)
> - goto out;
> + if (!active) {
> + /* bigjoiner slave doesn't enable transcoder */
> + if (!pipe_config->bigjoiner_slave)
> + goto out;
>
> - if (!transcoder_is_dsi(pipe_config->cpu_transcoder) ||
> - INTEL_GEN(dev_priv) >= 11) {
> + active = true;
> + pipe_config->pixel_multiplier = 1;
> +
> + /* we cannot read out most state, so don't bother.. */
> + pipe_config->quirks |= PIPE_CONFIG_QUIRK_BIGJOINER_SLAVE;
> + } else if (!transcoder_is_dsi(pipe_config->cpu_transcoder) ||
> + INTEL_GEN(dev_priv) >= 11) {
> hsw_get_ddi_port_state(crtc, pipe_config);
> intel_get_transcoder_timings(crtc, pipe_config);
> }
> @@ -11244,8 +11333,11 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
> }
> }
>
> - if (pipe_config->cpu_transcoder != TRANSCODER_EDP &&
> - !transcoder_is_dsi(pipe_config->cpu_transcoder)) {
> + if (pipe_config->bigjoiner_slave) {
> + /* Cannot be read out as a slave, set to 0. */
> + pipe_config->pixel_multiplier = 0;
> + } else if (pipe_config->cpu_transcoder != TRANSCODER_EDP &&
> + !transcoder_is_dsi(pipe_config->cpu_transcoder)) {
> pipe_config->pixel_multiplier =
> intel_de_read(dev_priv,
> PIPE_MULT(pipe_config->cpu_transcoder)) + 1;
> @@ -12260,7 +12352,7 @@ intel_encoder_current_mode(struct intel_encoder *encoder)
> return NULL;
> }
>
> - encoder->get_config(encoder, crtc_state);
> + intel_encoder_get_config(encoder, crtc_state);
>
> intel_mode_from_pipe_config(mode, crtc_state);
>
> @@ -13252,10 +13344,12 @@ intel_crtc_copy_uapi_to_hw_state(struct intel_atomic_state *state,
> static void intel_crtc_copy_hw_to_uapi_state(struct intel_crtc_state *crtc_state,
> struct drm_display_mode *user_mode)
> {
> - crtc_state->uapi.enable = crtc_state->hw.enable;
> - crtc_state->uapi.active = crtc_state->hw.active;
> - drm_WARN_ON(crtc_state->uapi.crtc->dev,
> - drm_atomic_set_mode_for_crtc(&crtc_state->uapi, user_mode) < 0);
> + if (!crtc_state->bigjoiner_slave) {
> + crtc_state->uapi.enable = crtc_state->hw.enable;
> + crtc_state->uapi.active = crtc_state->hw.active;
> + drm_WARN_ON(crtc_state->uapi.crtc->dev,
> + drm_atomic_set_mode_for_crtc(&crtc_state->uapi, user_mode) < 0);
> + }
>
> crtc_state->uapi.adjusted_mode = crtc_state->hw.adjusted_mode;
>
> @@ -13902,21 +13996,42 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
>
> PIPE_CONF_CHECK_X(output_types);
>
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hdisplay);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_htotal);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hblank_start);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hblank_end);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hsync_start);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hsync_end);
> -
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vdisplay);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vtotal);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vblank_start);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vblank_end);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vsync_start);
> - PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vsync_end);
> -
> - PIPE_CONF_CHECK_I(pixel_multiplier);
> + if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_BIGJOINER_SLAVE)) {
> + /* bigjoiner mode = transcoder mode / 2, for calculations */
> + PIPE_CONF_CHECK_I(hw.pipe_mode.crtc_hdisplay);
> + PIPE_CONF_CHECK_I(hw.pipe_mode.crtc_htotal);
> + PIPE_CONF_CHECK_I(hw.pipe_mode.crtc_vdisplay);
> + PIPE_CONF_CHECK_I(hw.pipe_mode.crtc_vtotal);
> +
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hdisplay);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_htotal);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hblank_start);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hblank_end);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hsync_start);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_hsync_end);
> +
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vdisplay);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vtotal);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vblank_start);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vblank_end);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vsync_start);
> + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_vsync_end);
> +
> + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> + DRM_MODE_FLAG_INTERLACE);
> +
> + if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
> + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> + DRM_MODE_FLAG_PHSYNC);
> + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> + DRM_MODE_FLAG_NHSYNC);
> + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> + DRM_MODE_FLAG_PVSYNC);
> + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> + DRM_MODE_FLAG_NVSYNC);
> + }
> + PIPE_CONF_CHECK_I(pixel_multiplier);
> + }
> PIPE_CONF_CHECK_I(output_format);
> PIPE_CONF_CHECK_BOOL(has_hdmi_sink);
> if ((INTEL_GEN(dev_priv) < 8 && !IS_HASWELL(dev_priv)) ||
> @@ -13926,24 +14041,11 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
> PIPE_CONF_CHECK_BOOL(hdmi_scrambling);
> PIPE_CONF_CHECK_BOOL(hdmi_high_tmds_clock_ratio);
> PIPE_CONF_CHECK_BOOL(has_infoframe);
> - PIPE_CONF_CHECK_BOOL(fec_enable);
> + if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_BIGJOINER_SLAVE))
> + PIPE_CONF_CHECK_BOOL(fec_enable);
>
> PIPE_CONF_CHECK_BOOL_INCOMPLETE(has_audio);
>
> - PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> - DRM_MODE_FLAG_INTERLACE);
> -
> - if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
> - PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> - DRM_MODE_FLAG_PHSYNC);
> - PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> - DRM_MODE_FLAG_NHSYNC);
> - PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> - DRM_MODE_FLAG_PVSYNC);
> - PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags,
> - DRM_MODE_FLAG_NVSYNC);
> - }
> -
> PIPE_CONF_CHECK_X(gmch_pfit.control);
> /* pfit ratios are autocomputed by the hw on gen4+ */
> if (INTEL_GEN(dev_priv) < 4)
> @@ -13969,7 +14071,8 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
> }
>
> PIPE_CONF_CHECK_I(scaler_state.scaler_id);
> - PIPE_CONF_CHECK_CLOCK_FUZZY(pixel_rate);
> + if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_BIGJOINER_SLAVE))
> + PIPE_CONF_CHECK_CLOCK_FUZZY(pixel_rate);
>
> PIPE_CONF_CHECK_X(gamma_mode);
> if (IS_CHERRYVIEW(dev_priv))
> @@ -13990,48 +14093,51 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
> PIPE_CONF_CHECK_BOOL(double_wide);
>
> PIPE_CONF_CHECK_P(shared_dpll);
> - PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
> - PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
> - PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
> - PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
> - PIPE_CONF_CHECK_X(dpll_hw_state.wrpll);
> - PIPE_CONF_CHECK_X(dpll_hw_state.spll);
> - PIPE_CONF_CHECK_X(dpll_hw_state.ctrl1);
> - PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr1);
> - PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr2);
> - PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr0);
> - PIPE_CONF_CHECK_X(dpll_hw_state.ebb0);
> - PIPE_CONF_CHECK_X(dpll_hw_state.ebb4);
> - PIPE_CONF_CHECK_X(dpll_hw_state.pll0);
> - PIPE_CONF_CHECK_X(dpll_hw_state.pll1);
> - PIPE_CONF_CHECK_X(dpll_hw_state.pll2);
> - PIPE_CONF_CHECK_X(dpll_hw_state.pll3);
> - PIPE_CONF_CHECK_X(dpll_hw_state.pll6);
> - PIPE_CONF_CHECK_X(dpll_hw_state.pll8);
> - PIPE_CONF_CHECK_X(dpll_hw_state.pll9);
> - PIPE_CONF_CHECK_X(dpll_hw_state.pll10);
> - PIPE_CONF_CHECK_X(dpll_hw_state.pcsdw12);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_refclkin_ctl);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_clktop2_coreclkctl1);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_clktop2_hsclkctl);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_div0);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_div1);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_lf);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_frac_lock);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_ssc);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_bias);
> - PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_tdc_coldst_bias);
> -
> - PIPE_CONF_CHECK_X(dsi_pll.ctrl);
> - PIPE_CONF_CHECK_X(dsi_pll.div);
> -
> - if (IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5)
> - PIPE_CONF_CHECK_I(pipe_bpp);
> -
> - PIPE_CONF_CHECK_CLOCK_FUZZY(hw.adjusted_mode.crtc_clock);
> - PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
> -
> - PIPE_CONF_CHECK_I(min_voltage_level);
> + if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_BIGJOINER_SLAVE)) {
> + PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
> + PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
> + PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
> + PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
> + PIPE_CONF_CHECK_X(dpll_hw_state.wrpll);
> + PIPE_CONF_CHECK_X(dpll_hw_state.spll);
> + PIPE_CONF_CHECK_X(dpll_hw_state.ctrl1);
> + PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr1);
> + PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr2);
> + PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr0);
> + PIPE_CONF_CHECK_X(dpll_hw_state.ebb0);
> + PIPE_CONF_CHECK_X(dpll_hw_state.ebb4);
> + PIPE_CONF_CHECK_X(dpll_hw_state.pll0);
> + PIPE_CONF_CHECK_X(dpll_hw_state.pll1);
> + PIPE_CONF_CHECK_X(dpll_hw_state.pll2);
> + PIPE_CONF_CHECK_X(dpll_hw_state.pll3);
> + PIPE_CONF_CHECK_X(dpll_hw_state.pll6);
> + PIPE_CONF_CHECK_X(dpll_hw_state.pll8);
> + PIPE_CONF_CHECK_X(dpll_hw_state.pll9);
> + PIPE_CONF_CHECK_X(dpll_hw_state.pll10);
> + PIPE_CONF_CHECK_X(dpll_hw_state.pcsdw12);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_refclkin_ctl);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_clktop2_coreclkctl1);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_clktop2_hsclkctl);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_div0);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_div1);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_lf);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_frac_lock);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_ssc);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_bias);
> + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_tdc_coldst_bias);
> +
> + PIPE_CONF_CHECK_X(dsi_pll.ctrl);
> + PIPE_CONF_CHECK_X(dsi_pll.div);
> +
> + if (IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5)
> + PIPE_CONF_CHECK_I(pipe_bpp);
> +
> + PIPE_CONF_CHECK_CLOCK_FUZZY(hw.adjusted_mode.crtc_clock);
> + PIPE_CONF_CHECK_CLOCK_FUZZY(hw.pipe_mode.crtc_clock);
> + PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
> +
> + PIPE_CONF_CHECK_I(min_voltage_level);
> + }
>
> PIPE_CONF_CHECK_X(infoframes.enable);
> PIPE_CONF_CHECK_X(infoframes.gcp);
> @@ -14043,11 +14149,12 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
>
> PIPE_CONF_CHECK_X(sync_mode_slaves_mask);
> PIPE_CONF_CHECK_I(master_transcoder);
> -
> + PIPE_CONF_CHECK_BOOL(bigjoiner);
> + PIPE_CONF_CHECK_BOOL(bigjoiner_slave);
> + PIPE_CONF_CHECK_P(bigjoiner_linked_crtc);
> PIPE_CONF_CHECK_I(dsc.compression_enable);
> PIPE_CONF_CHECK_I(dsc.dsc_split);
> PIPE_CONF_CHECK_I(dsc.compressed_bpp);
> -
> PIPE_CONF_CHECK_I(mst_master_transcoder);
>
> #undef PIPE_CONF_CHECK_X
> @@ -14314,6 +14421,7 @@ verify_crtc_state(struct intel_crtc *crtc,
> struct intel_encoder *encoder;
> struct intel_crtc_state *pipe_config = old_crtc_state;
> struct drm_atomic_state *state = old_crtc_state->uapi.state;
> + struct intel_crtc *master = crtc;
> bool active;
>
> __drm_atomic_helper_crtc_destroy_state(&old_crtc_state->uapi);
> @@ -14340,7 +14448,10 @@ verify_crtc_state(struct intel_crtc *crtc,
> "(expected %i, found %i)\n",
> new_crtc_state->hw.active, crtc->active);
>
> - for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
> + if (new_crtc_state->bigjoiner_slave)
> + master = new_crtc_state->bigjoiner_linked_crtc;
> +
> + for_each_encoder_on_crtc(dev, &master->base, encoder) {
> enum pipe pipe;
>
> active = encoder->get_hw_state(encoder, &pipe);
> @@ -14349,12 +14460,12 @@ verify_crtc_state(struct intel_crtc *crtc,
> encoder->base.base.id, active,
> new_crtc_state->hw.active);
>
> - I915_STATE_WARN(active && crtc->pipe != pipe,
> + I915_STATE_WARN(active && master->pipe != pipe,
> "Encoder connected to wrong pipe %c\n",
> pipe_name(pipe));
>
> if (active)
> - encoder->get_config(encoder, pipe_config);
> + intel_encoder_get_config(encoder, pipe_config);
> }
>
> intel_crtc_compute_pixel_rate(pipe_config);
> @@ -15376,7 +15487,12 @@ static void intel_old_crtc_state_disables(struct intel_atomic_state *state,
> {
> struct drm_i915_private *dev_priv = to_i915(state->base.dev);
>
> + drm_WARN_ON(&dev_priv->drm, old_crtc_state->bigjoiner_slave);
> +
> intel_crtc_disable_planes(state, crtc);
> + if (old_crtc_state->bigjoiner)
> + intel_crtc_disable_planes(state,
> + old_crtc_state->bigjoiner_linked_crtc);
>
> /*
> * We need to disable pipe CRC before disabling the pipe,
> @@ -15406,7 +15522,7 @@ static void intel_commit_modeset_disables(struct intel_atomic_state *state)
> /* Only disable port sync and MST slaves */
> for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
> new_crtc_state, i) {
> - if (!needs_modeset(new_crtc_state))
> + if (!needs_modeset(new_crtc_state) || old_crtc_state->bigjoiner_slave)
> continue;
>
> if (!old_crtc_state->hw.active)
> @@ -15421,7 +15537,6 @@ static void intel_commit_modeset_disables(struct intel_atomic_state *state)
> !intel_dp_mst_is_slave_trans(old_crtc_state))
> continue;
>
> - intel_pre_plane_update(state, crtc);
> intel_old_crtc_state_disables(state, old_crtc_state,
> new_crtc_state, crtc);
> handled |= BIT(crtc->pipe);
> @@ -15431,10 +15546,18 @@ static void intel_commit_modeset_disables(struct intel_atomic_state *state)
> for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
> new_crtc_state, i) {
> if (!needs_modeset(new_crtc_state) ||
> - (handled & BIT(crtc->pipe)))
> + (handled & BIT(crtc->pipe)) ||
> + old_crtc_state->bigjoiner_slave)
> continue;
>
> intel_pre_plane_update(state, crtc);
> + if (old_crtc_state->bigjoiner) {
> + struct intel_crtc *slave =
> + old_crtc_state->bigjoiner_linked_crtc;
> +
> + intel_pre_plane_update(state, slave);
> + }
> +
> if (old_crtc_state->hw.active)
> intel_old_crtc_state_disables(state, old_crtc_state,
> new_crtc_state, crtc);
> @@ -18063,7 +18186,7 @@ int intel_modeset_init(struct drm_i915_private *i915)
> for_each_intel_crtc(dev, crtc) {
> struct intel_initial_plane_config plane_config = {};
>
> - if (!crtc->active)
> + if (!to_intel_crtc_state(crtc->base.state)->uapi.active)
> continue;
>
> /*
> @@ -18562,7 +18685,17 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
> crtc_state = to_intel_crtc_state(crtc->base.state);
>
> encoder->base.crtc = &crtc->base;
> - encoder->get_config(encoder, crtc_state);
> + intel_encoder_get_config(encoder, crtc_state);
> +
> + /* read out to slave crtc as well for bigjoiner */
> + if (crtc_state->bigjoiner) {
> + /* encoder should read be linked to bigjoiner master */
> + WARN_ON(crtc_state->bigjoiner_slave);
> +
> + crtc = crtc_state->bigjoiner_linked_crtc;
> + crtc_state = to_intel_crtc_state(crtc->base.state);
> + intel_encoder_get_config(encoder, crtc_state);
> + }
> } else {
> encoder->base.crtc = NULL;
> }
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 4694cfd90a0a..943709f192f7 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -826,6 +826,7 @@ struct intel_crtc_state {
> * accordingly.
> */
> #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS (1<<0) /* unreliable sync mode.flags */
> +#define PIPE_CONFIG_QUIRK_BIGJOINER_SLAVE (1<<1) /* bigjoiner slave, partial readout */
> unsigned long quirks;
>
> unsigned fb_bits; /* framebuffers to flip */
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 29f45d2206af..41cb9f9c0292 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -2004,12 +2004,10 @@ static bool intel_dp_supports_fec(struct intel_dp *intel_dp,
> static bool intel_dp_supports_dsc(struct intel_dp *intel_dp,
> const struct intel_crtc_state *crtc_state)
> {
> - struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -
> - if (!intel_dp_is_edp(intel_dp) && !crtc_state->fec_enable)
> + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP) && !crtc_state->fec_enable)
> return false;
>
> - return intel_dsc_source_support(encoder, crtc_state) &&
> + return intel_dsc_source_support(crtc_state) &&
> drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd);
> }
>
> diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c
> index c5735c365659..2d343ccef497 100644
> --- a/drivers/gpu/drm/i915/display/intel_vdsc.c
> +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c
> @@ -332,11 +332,10 @@ static const struct rc_parameters *get_rc_params(u16 compressed_bpp,
> return &rc_parameters[row_index][column_index];
> }
>
> -bool intel_dsc_source_support(struct intel_encoder *encoder,
> - const struct intel_crtc_state *crtc_state)
> +bool intel_dsc_source_support(const struct intel_crtc_state *crtc_state)
> {
> const struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> - struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> + struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
> enum pipe pipe = crtc->pipe;
>
> @@ -490,11 +489,10 @@ intel_dsc_power_domain(const struct intel_crtc_state *crtc_state)
> return POWER_DOMAIN_TRANSCODER_VDSC_PW2;
> }
>
> -static void intel_dsc_pps_configure(struct intel_encoder *encoder,
> - const struct intel_crtc_state *crtc_state)
> +static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
> {
> struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> const struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config;
> enum pipe pipe = crtc->pipe;
> u32 pps_val = 0;
> @@ -503,6 +501,9 @@ static void intel_dsc_pps_configure(struct intel_encoder *encoder,
> u8 num_vdsc_instances = (crtc_state->dsc.dsc_split) ? 2 : 1;
> int i = 0;
>
> + if (crtc_state->bigjoiner)
> + num_vdsc_instances *= 2;
> +
> /* Populate PICTURE_PARAMETER_SET_0 registers */
> pps_val = DSC_VER_MAJ | vdsc_cfg->dsc_version_minor <<
> DSC_VER_MIN_SHIFT |
> @@ -973,55 +974,6 @@ static void intel_dsc_pps_configure(struct intel_encoder *encoder,
> }
> }
>
> -void intel_dsc_get_config(struct intel_encoder *encoder,
> - struct intel_crtc_state *crtc_state)
> -{
> - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> - struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config;
> - struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> - enum pipe pipe = crtc->pipe;
> - enum intel_display_power_domain power_domain;
> - intel_wakeref_t wakeref;
> - u32 dss_ctl1, dss_ctl2, val;
> -
> - if (!intel_dsc_source_support(encoder, crtc_state))
> - return;
> -
> - power_domain = intel_dsc_power_domain(crtc_state);
> -
> - wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
> - if (!wakeref)
> - return;
> -
> - if (!is_pipe_dsc(crtc_state)) {
> - dss_ctl1 = intel_de_read(dev_priv, DSS_CTL1);
> - dss_ctl2 = intel_de_read(dev_priv, DSS_CTL2);
> - } else {
> - dss_ctl1 = intel_de_read(dev_priv, ICL_PIPE_DSS_CTL1(pipe));
> - dss_ctl2 = intel_de_read(dev_priv, ICL_PIPE_DSS_CTL2(pipe));
> - }
> -
> - crtc_state->dsc.compression_enable = dss_ctl2 & LEFT_BRANCH_VDSC_ENABLE;
> - if (!crtc_state->dsc.compression_enable)
> - goto out;
> -
> - crtc_state->dsc.dsc_split = (dss_ctl2 & RIGHT_BRANCH_VDSC_ENABLE) &&
> - (dss_ctl1 & JOINER_ENABLE);
> -
> - /* FIXME: add more state readout as needed */
> -
> - /* PPS1 */
> - if (!is_pipe_dsc(crtc_state))
> - val = intel_de_read(dev_priv, DSCA_PICTURE_PARAMETER_SET_1);
> - else
> - val = intel_de_read(dev_priv,
> - ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe));
> - vdsc_cfg->bits_per_pixel = val;
> - crtc_state->dsc.compressed_bpp = vdsc_cfg->bits_per_pixel >> 4;
> -out:
> - intel_display_power_put(dev_priv, power_domain, wakeref);
> -}
> -
> static void intel_dsc_dsi_pps_write(struct intel_encoder *encoder,
> const struct intel_crtc_state *crtc_state)
> {
> @@ -1060,77 +1012,130 @@ static void intel_dsc_dp_pps_write(struct intel_encoder *encoder,
> sizeof(dp_dsc_pps_sdp));
> }
>
> +static i915_reg_t dss_ctl1_reg(const struct intel_crtc_state *crtc_state)
> +{
> + enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
> +
> + if (crtc_state->cpu_transcoder == TRANSCODER_EDP)
> + return DSS_CTL1;
> +
> + return ICL_PIPE_DSS_CTL1(pipe);
> +}
> +
> +static i915_reg_t dss_ctl2_reg(const struct intel_crtc_state *crtc_state)
> +{
> + enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
> +
> + if (crtc_state->cpu_transcoder == TRANSCODER_EDP)
> + return DSS_CTL2;
> +
> + return ICL_PIPE_DSS_CTL2(pipe);
> +}
> +
> void intel_dsc_enable(struct intel_encoder *encoder,
> const struct intel_crtc_state *crtc_state)
> {
> struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> - enum pipe pipe = crtc->pipe;
> - i915_reg_t dss_ctl1_reg, dss_ctl2_reg;
> + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> u32 dss_ctl1_val = 0;
> u32 dss_ctl2_val = 0;
>
> if (!crtc_state->dsc.compression_enable)
> return;
>
> - /* Enable Power wells for VDSC/joining */
> - intel_display_power_get(dev_priv,
> - intel_dsc_power_domain(crtc_state));
Why do we remove the power get for dsc_power_domains here? IMO this is causing the CI error since
in dsc_disables we do try to put the dsc_power_domains but we error out saying on dsc disable:
"Use count on VDSC POWER DOMAIN already 0"
we need to get power domains here since for Pipe A/eDP on TGL, we do need a separate PW2 for VDSC.
Manasi
> + intel_dsc_pps_configure(crtc_state);
>
> - intel_dsc_pps_configure(encoder, crtc_state);
> -
> - if (encoder->type == INTEL_OUTPUT_DSI)
> - intel_dsc_dsi_pps_write(encoder, crtc_state);
> - else
> - intel_dsc_dp_pps_write(encoder, crtc_state);
> -
> - if (!is_pipe_dsc(crtc_state)) {
> - dss_ctl1_reg = DSS_CTL1;
> - dss_ctl2_reg = DSS_CTL2;
> - } else {
> - dss_ctl1_reg = ICL_PIPE_DSS_CTL1(pipe);
> - dss_ctl2_reg = ICL_PIPE_DSS_CTL2(pipe);
> + if (!crtc_state->bigjoiner_slave) {
> + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
> + intel_dsc_dsi_pps_write(encoder, crtc_state);
> + else
> + intel_dsc_dp_pps_write(encoder, crtc_state);
> }
> +
> dss_ctl2_val |= LEFT_BRANCH_VDSC_ENABLE;
> if (crtc_state->dsc.dsc_split) {
> dss_ctl2_val |= RIGHT_BRANCH_VDSC_ENABLE;
> dss_ctl1_val |= JOINER_ENABLE;
> }
> - intel_de_write(dev_priv, dss_ctl1_reg, dss_ctl1_val);
> - intel_de_write(dev_priv, dss_ctl2_reg, dss_ctl2_val);
> + if (crtc_state->bigjoiner) {
> + dss_ctl1_val |= BIG_JOINER_ENABLE;
> + if (!crtc_state->bigjoiner_slave)
> + dss_ctl1_val |= MASTER_BIG_JOINER_ENABLE;
> + }
> + intel_de_write(dev_priv, dss_ctl1_reg(crtc_state), dss_ctl1_val);
> + intel_de_write(dev_priv, dss_ctl2_reg(crtc_state), dss_ctl2_val);
> }
>
> void intel_dsc_disable(const struct intel_crtc_state *old_crtc_state)
> {
> struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc);
> struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> - enum pipe pipe = crtc->pipe;
> - i915_reg_t dss_ctl1_reg, dss_ctl2_reg;
> - u32 dss_ctl1_val = 0, dss_ctl2_val = 0;
>
> if (!old_crtc_state->dsc.compression_enable)
> return;
>
> - if (!is_pipe_dsc(old_crtc_state)) {
> - dss_ctl1_reg = DSS_CTL1;
> - dss_ctl2_reg = DSS_CTL2;
> - } else {
> - dss_ctl1_reg = ICL_PIPE_DSS_CTL1(pipe);
> - dss_ctl2_reg = ICL_PIPE_DSS_CTL2(pipe);
> - }
> - dss_ctl1_val = intel_de_read(dev_priv, dss_ctl1_reg);
> - if (dss_ctl1_val & JOINER_ENABLE)
> - dss_ctl1_val &= ~JOINER_ENABLE;
> - intel_de_write(dev_priv, dss_ctl1_reg, dss_ctl1_val);
> -
> - dss_ctl2_val = intel_de_read(dev_priv, dss_ctl2_reg);
> - if (dss_ctl2_val & LEFT_BRANCH_VDSC_ENABLE ||
> - dss_ctl2_val & RIGHT_BRANCH_VDSC_ENABLE)
> - dss_ctl2_val &= ~(LEFT_BRANCH_VDSC_ENABLE |
> - RIGHT_BRANCH_VDSC_ENABLE);
> - intel_de_write(dev_priv, dss_ctl2_reg, dss_ctl2_val);
> + intel_de_write(dev_priv, dss_ctl1_reg(old_crtc_state), 0);
> + intel_de_write(dev_priv, dss_ctl2_reg(old_crtc_state), 0);
>
> /* Disable Power wells for VDSC/joining */
> intel_display_power_put_unchecked(dev_priv,
> intel_dsc_power_domain(old_crtc_state));
> }
> +
> +void intel_dsc_get_config(struct intel_crtc_state *crtc_state)
> +{
> + struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config;
> + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> + enum pipe pipe = crtc->pipe;
> + enum intel_display_power_domain power_domain;
> + intel_wakeref_t wakeref;
> + u32 dss_ctl1, dss_ctl2, val;
> +
> + if (!intel_dsc_source_support(crtc_state))
> + return;
> +
> + power_domain = intel_dsc_power_domain(crtc_state);
> +
> + wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
> + if (!wakeref)
> + return;
> +
> + dss_ctl1 = intel_de_read(dev_priv, dss_ctl1_reg(crtc_state));
> + dss_ctl2 = intel_de_read(dev_priv, dss_ctl2_reg(crtc_state));
> +
> + crtc_state->dsc.compression_enable = dss_ctl2 & LEFT_BRANCH_VDSC_ENABLE;
> + if (!crtc_state->dsc.compression_enable)
> + goto out;
> +
> + crtc_state->dsc.dsc_split = (dss_ctl2 & RIGHT_BRANCH_VDSC_ENABLE) &&
> + (dss_ctl1 & JOINER_ENABLE);
> +
> + if (dss_ctl1 & BIG_JOINER_ENABLE) {
> + crtc_state->bigjoiner = true;
> +
> + if (!(dss_ctl1 & MASTER_BIG_JOINER_ENABLE)) {
> + crtc_state->bigjoiner_slave = true;
> + if (!WARN_ON(crtc->pipe == PIPE_A))
> + crtc_state->bigjoiner_linked_crtc =
> + intel_get_crtc_for_pipe(dev_priv, crtc->pipe - 1);
> + } else {
> + if (!WARN_ON(INTEL_NUM_PIPES(dev_priv) == crtc->pipe + 1))
> + crtc_state->bigjoiner_linked_crtc =
> + intel_get_crtc_for_pipe(dev_priv, crtc->pipe + 1);
> + }
> + }
> +
> + /* FIXME: add more state readout as needed */
> +
> + /* PPS1 */
> + if (!is_pipe_dsc(crtc_state))
> + val = intel_de_read(dev_priv, DSCA_PICTURE_PARAMETER_SET_1);
> + else
> + val = intel_de_read(dev_priv,
> + ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe));
> + vdsc_cfg->bits_per_pixel = val;
> + crtc_state->dsc.compressed_bpp = vdsc_cfg->bits_per_pixel >> 4;
> +out:
> + intel_display_power_put(dev_priv, power_domain, wakeref);
> +}
> diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.h b/drivers/gpu/drm/i915/display/intel_vdsc.h
> index e56a3254c214..5301345ac5e7 100644
> --- a/drivers/gpu/drm/i915/display/intel_vdsc.h
> +++ b/drivers/gpu/drm/i915/display/intel_vdsc.h
> @@ -11,15 +11,14 @@
> struct intel_encoder;
> struct intel_crtc_state;
>
> -bool intel_dsc_source_support(struct intel_encoder *encoder,
> - const struct intel_crtc_state *crtc_state);
> +bool intel_dsc_source_support(const struct intel_crtc_state *crtc_state);
> void intel_dsc_enable(struct intel_encoder *encoder,
> const struct intel_crtc_state *crtc_state);
> void intel_dsc_disable(const struct intel_crtc_state *crtc_state);
> int intel_dsc_compute_params(struct intel_encoder *encoder,
> struct intel_crtc_state *pipe_config);
> -void intel_dsc_get_config(struct intel_encoder *encoder,
> - struct intel_crtc_state *crtc_state);
> +void intel_dsc_get_config(struct intel_crtc_state *crtc_state);
> +
> enum intel_display_power_domain
> intel_dsc_power_domain(const struct intel_crtc_state *crtc_state);
>
> --
> 2.19.1
>
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