[Intel-gfx] [PATCH v11 09/12] drm/i915: HW state readout for Bigjoiner case
Navare, Manasi
manasi.d.navare at intel.com
Mon Oct 26 22:33:36 UTC 2020
On Fri, Oct 23, 2020 at 09:00:25PM +0300, Ville Syrjälä wrote:
> On Wed, Oct 21, 2020 at 10:42:20PM -0700, Manasi Navare wrote:
> > Skip iterating over bigjoiner slaves, only the master has the state we
> > care about.
> >
> > Add the width of the bigjoiner slave to the reconstructed fb.
> >
> > Hide the bigjoiner slave to userspace, and double the mode on bigjoiner
> > master.
> >
> > And last, disable bigjoiner slave from primary if reconstruction fails.
> >
> > Signed-off-by: Manasi Navare <manasi.d.navare at intel.com>
> > ---
> > drivers/gpu/drm/i915/display/icl_dsi.c | 2 -
> > drivers/gpu/drm/i915/display/intel_ddi.c | 36 +-
> > drivers/gpu/drm/i915/display/intel_display.c | 339 ++++++++++++------
> > .../drm/i915/display/intel_display_types.h | 1 +
> > 4 files changed, 260 insertions(+), 118 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
> > index 0fecf372be11..104a423e0cd5 100644
> > --- a/drivers/gpu/drm/i915/display/icl_dsi.c
> > +++ b/drivers/gpu/drm/i915/display/icl_dsi.c
> > @@ -1492,8 +1492,6 @@ 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(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 050891a130c1..d5a0d0664c2d 100644
> > --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> > @@ -4408,20 +4408,14 @@ 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);
> > enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
> > u32 temp, flags = 0;
> >
> > - /* XXX: DSI transcoder paranoia */
> > - if (drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder)))
> > - return;
> > -
> > - intel_dsc_get_config(pipe_config);
> > -
> > temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
> > if (temp & TRANS_DDI_PHSYNC)
> > flags |= DRM_MODE_FLAG_PHSYNC;
> > @@ -4515,6 +4509,29 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
> > default:
> > break;
> > }
> > +}
> > +
> > +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 (drm_WARN_ON(&dev_priv->drm, 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);
> > @@ -4540,7 +4557,8 @@ 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 1be77ba2f9cf..c0715a3ea47b 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > @@ -3631,6 +3631,8 @@ intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
> > struct intel_plane *intel_plane = to_intel_plane(primary);
> > struct intel_plane_state *intel_state =
> > to_intel_plane_state(plane_state);
> > + struct intel_crtc_state *crtc_state =
> > + to_intel_crtc_state(intel_crtc->base.state);
> > struct drm_framebuffer *fb;
> > struct i915_vma *vma;
> >
> > @@ -3653,7 +3655,7 @@ intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
> > if (c == &intel_crtc->base)
> > continue;
> >
> > - if (!to_intel_crtc(c)->active)
> > + if (!to_intel_crtc_state(c->state)->uapi.active)
> > continue;
> >
> > state = to_intel_plane_state(c->primary->state);
> > @@ -3675,6 +3677,11 @@ intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
> > * pretend the BIOS never had it enabled.
> > */
> > intel_plane_disable_noatomic(intel_crtc, intel_plane);
> > + if (crtc_state->bigjoiner) {
> > + struct intel_crtc *slave =
> > + crtc_state->bigjoiner_linked_crtc;
> > + intel_plane_disable_noatomic(slave, to_intel_plane(slave->base.primary));
> > + }
> >
> > return;
> >
> > @@ -8272,6 +8279,30 @@ 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);
> > @@ -9186,20 +9217,22 @@ 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;
>
> This part doesn't seem to have anything to do with the rest of the
> patch. What is it its purpose?
May be just add this to Patch 2: drm/i915: Add hw.pipe_mode to allow bigjoiner pipe/transcoder split
Would that be okay?
>
> >
> > drm_mode_set_name(mode);
> > }
> > @@ -10768,6 +10801,7 @@ static void
> > skl_get_initial_plane_config(struct intel_crtc *crtc,
> > struct intel_initial_plane_config *plane_config)
> > {
> > + struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state);
> > struct drm_device *dev = crtc->base.dev;
> > struct drm_i915_private *dev_priv = to_i915(dev);
> > struct intel_plane *plane = to_intel_plane(crtc->base.primary);
> > @@ -10876,6 +10910,13 @@ skl_get_initial_plane_config(struct intel_crtc *crtc,
> > fb->height = ((val >> 16) & 0xffff) + 1;
> > fb->width = ((val >> 0) & 0xffff) + 1;
> >
> > + /* add bigjoiner slave as well, if the fb stretches both */
> > + if (crtc_state->bigjoiner) {
> > + drm_dbg_kms(&dev_priv->drm,
> > + "Does not support Bigjoiner Fb stretching yet\n");
>
> "stretch" makes me think this has something to do with
> scaling, which it does not. Also I have to wonder what
> is the thing that "does not support". Ie. I guess I would
> word it differently. Maybe something like:
> "Unsupported bigjoiner configuration for initial FB"
>
> Also I think we can check this before we even allocate the
> fb struct, which means the goto error can be replaced
> with a simple return.
Okay will change the debug message and move this to the top if the
function so we can just return
Assuming your r-b after these changes?
Manasi
>
> > + goto error;
> > + }
> > +
> > val = intel_de_read(dev_priv, PLANE_STRIDE(pipe, plane_id));
> > stride_mult = skl_plane_stride_mult(fb, 0, DRM_MODE_ROTATE_0);
> > fb->pitches[0] = (val & 0x3ff) * stride_mult;
> > @@ -11366,6 +11407,8 @@ 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
> > @@ -11439,10 +11482,19 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
> > active = true;
> > }
> >
> > - if (!active)
> > - goto out;
> > + intel_dsc_get_config(pipe_config);
> >
> > - if (!transcoder_is_dsi(pipe_config->cpu_transcoder) ||
> > + if (!active) {
> > + /* bigjoiner slave doesn't enable transcoder */
> > + if (!pipe_config->bigjoiner_slave)
> > + goto out;
> > +
> > + 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);
> > @@ -11517,7 +11569,10 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
> > }
> > }
> >
> > - if (pipe_config->cpu_transcoder != TRANSCODER_EDP &&
> > + if (pipe_config->bigjoiner_slave) {
> > + /* Cannot be read out as a slave, set to 0. */
> > + pipe_config->pixel_multiplier = 0;
>
> I think all the dozens of places with these readout hacks will need a
> FIXME just so we don't forget to fix them. They also make the code semi
> illegible so a FIXME would at least remind me when I wtf at the code
> later.
>
> > + } else if (pipe_config->cpu_transcoder != TRANSCODER_EDP &&
> > !transcoder_is_dsi(pipe_config->cpu_transcoder)) {
> > pipe_config->pixel_multiplier =
> > intel_de_read(dev_priv,
> > @@ -12536,7 +12591,7 @@ 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);
> >
> > @@ -13540,13 +13595,15 @@ intel_crtc_copy_uapi_to_hw_state(struct intel_atomic_state *state,
> > intel_crtc_copy_uapi_to_hw_state_nomodeset(state, crtc_state);
> > }
> >
> > -static void intel_crtc_copy_hw_to_uapi_state(struct intel_crtc_state *crtc_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, &crtc_state->hw.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;
> > crtc_state->uapi.scaling_filter = crtc_state->hw.scaling_filter;
> >
> > @@ -14183,21 +14240,42 @@ 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)) ||
> > @@ -14207,24 +14285,11 @@ 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)
> > @@ -14250,7 +14315,8 @@ 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))
> > @@ -14271,48 +14337,50 @@ 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(port_clock);
> > +
> > + PIPE_CONF_CHECK_I(min_voltage_level);
> > + }
> >
> > PIPE_CONF_CHECK_X(infoframes.enable);
> > PIPE_CONF_CHECK_X(infoframes.gcp);
> > @@ -14324,6 +14392,9 @@ 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);
> > @@ -14595,6 +14666,7 @@ 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;
> >
> > __drm_atomic_helper_crtc_destroy_state(&old_crtc_state->uapi);
> > intel_crtc_free_hw_state(old_crtc_state);
> > @@ -14623,7 +14695,10 @@ 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;
> > bool active;
> >
> > @@ -14633,12 +14708,12 @@ 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);
>
> Introducing that wrapper could easily be a separate patch.
>
> > }
> >
> > intel_crtc_compute_pixel_rate(pipe_config);
> > @@ -18543,7 +18618,7 @@ int intel_modeset_init_nogem(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;
>
> This part looks like a separate patch.
>
> >
> > /*
> > @@ -18856,7 +18931,8 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
> >
> > /* Adjust the state of the output pipe according to whether we
> > * have active connectors/encoders. */
> > - if (crtc_state->hw.active && !intel_crtc_has_encoders(crtc))
> > + if (crtc_state->hw.active && !intel_crtc_has_encoders(crtc) &&
> > + !crtc_state->bigjoiner_slave)
> > intel_crtc_disable_noatomic(crtc, ctx);
> >
> > if (crtc_state->hw.active || HAS_GMCH(dev_priv)) {
> > @@ -19067,9 +19143,19 @@ 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);
> > if (encoder->sync_state)
> > encoder->sync_state(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;
> > }
> > @@ -19125,16 +19211,15 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
> > struct intel_plane *plane;
> > int min_cdclk = 0;
> >
> > + if (crtc_state->bigjoiner_slave)
> > + continue;
> > +
> > if (crtc_state->hw.active) {
> > - struct drm_display_mode *mode = &crtc_state->hw.mode;
> > + struct drm_display_mode mode;
>
> Didn't we decide to keep hw.mode for now? If so, this looks very
> suspicious.
>
> >
> > intel_mode_from_pipe_config(&crtc_state->hw.adjusted_mode,
> > crtc_state);
> >
> > - *mode = crtc_state->hw.adjusted_mode;
> > - mode->hdisplay = crtc_state->pipe_src_w;
> > - mode->vdisplay = crtc_state->pipe_src_h;
> > -
> > /*
> > * The initial mode needs to be set in order to keep
> > * the atomic core happy. It wants a valid mode if the
> > @@ -19149,11 +19234,18 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
> > /* initialize pipe_mode */
> > crtc_state->hw.pipe_mode = crtc_state->hw.adjusted_mode;
> >
> > + mode = crtc_state->hw.adjusted_mode;
> > + mode.hdisplay = crtc_state->pipe_src_w;
> > + mode.vdisplay = crtc_state->pipe_src_h;
> > +
> > + if (crtc_state->bigjoiner)
> > + mode.hdisplay *= 2;
> > +
> > intel_crtc_compute_pixel_rate(crtc_state);
> >
> > intel_crtc_update_active_timings(crtc_state);
> >
> > - intel_crtc_copy_hw_to_uapi_state(crtc_state);
> > + intel_crtc_copy_hw_to_uapi_state(crtc_state, &mode);
> > }
> >
> > for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
> > @@ -19199,6 +19291,39 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
> > intel_bw_crtc_update(bw_state, crtc_state);
> >
> > intel_pipe_config_sanity_check(dev_priv, crtc_state);
> > +
> > + /* discard our incomplete slave state, copy it from master */
> > + if (crtc_state->bigjoiner && crtc_state->hw.active) {
> > + struct intel_crtc *slave = crtc_state->bigjoiner_linked_crtc;
> > + struct intel_crtc_state *slave_crtc_state =
> > + to_intel_crtc_state(slave->base.state);
> > +
> > + copy_bigjoiner_crtc_state(slave_crtc_state, crtc_state);
> > + slave->base.mode = crtc->base.mode;
> > +
> > + cdclk_state->min_cdclk[slave->pipe] = min_cdclk;
> > + cdclk_state->min_voltage_level[slave->pipe] =
> > + crtc_state->min_voltage_level;
> > +
> > + for_each_intel_plane_on_crtc(&dev_priv->drm, slave, plane) {
> > + const struct intel_plane_state *plane_state =
> > + to_intel_plane_state(plane->base.state);
> > +
> > + /*
> > + * FIXME don't have the fb yet, so can't
> > + * use intel_plane_data_rate() :(
> > + */
> > + if (plane_state->uapi.visible)
> > + crtc_state->data_rate[plane->id] =
> > + 4 * crtc_state->pixel_rate;
> > + else
> > + crtc_state->data_rate[plane->id] = 0;
> > + }
> > +
> > + intel_bw_crtc_update(bw_state, slave_crtc_state);
> > + drm_calc_timestamping_constants(&slave->base,
> > + &slave_crtc_state->hw.adjusted_mode);
> > + }
> > }
> > }
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> > index 59ed94d68b55..d82ba1b9d8ef 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> > +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> > @@ -845,6 +845,7 @@ 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 */
> > --
> > 2.19.1
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Ville Syrjälä
> Intel
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