From: Patrik Jakobsson <patrik.jakobs...@linux.intel.com> When reading out hw state for planes we disable inactive planes which in turn triggers an update of the watermarks. The update depends on the crtc_clock being set which is done when reading out encoders. Thus postpone the plane readout until after encoder readout.
This prevents a warning in skl_compute_linetime_wm() where pixel_rate becomes 0 when crtc_clock is 0. Changes since v1: - Set all modes after all state is read out. (Maarten) References: https://bugs.freedesktop.org/show_bug.cgi?id=91428 Signed-off-by: Patrik Jakobsson <patrik.jakobs...@linux.intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com> --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index df237ad4a780..85d52158d476 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -15042,27 +15042,25 @@ static bool primary_get_hw_state(struct intel_crtc *crtc) return !!(I915_READ(DSPCNTR(crtc->plane)) & DISPLAY_PLANE_ENABLE); } -static void readout_plane_state(struct intel_crtc *crtc, - struct intel_crtc_state *crtc_state) +static void intel_sanitize_plane(struct intel_plane *plane) { - struct intel_plane *p; struct intel_plane_state *plane_state; - bool active = crtc_state->base.active; + struct intel_crtc *crtc; - for_each_intel_plane(crtc->base.dev, p) { - if (crtc->pipe != p->pipe) - continue; + plane_state = to_intel_plane_state(plane->base.state); - plane_state = to_intel_plane_state(p->base.state); + if (!plane_state->base.crtc) + return; - if (p->base.type == DRM_PLANE_TYPE_PRIMARY) - plane_state->visible = primary_get_hw_state(crtc); - else { - if (active) - p->disable_plane(&p->base, &crtc->base); + crtc = to_intel_crtc(plane_state->base.crtc); - plane_state->visible = false; - } + if (plane->base.type == DRM_PLANE_TYPE_PRIMARY) { + plane_state->visible = primary_get_hw_state(crtc); + } else { + if (crtc->base.state->active) + plane->disable_plane(&plane->base, &crtc->base); + + plane_state->visible = false; } } @@ -15086,35 +15084,6 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev) crtc->base.state->active = crtc->active; crtc->base.enabled = crtc->active; - memset(&crtc->base.mode, 0, sizeof(crtc->base.mode)); - if (crtc->base.state->active) { - intel_mode_from_pipe_config(&crtc->base.mode, crtc->config); - intel_mode_from_pipe_config(&crtc->base.state->adjusted_mode, crtc->config); - WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, &crtc->base.mode)); - - /* - * The initial mode needs to be set in order to keep - * the atomic core happy. It wants a valid mode if the - * crtc's enabled, so we do the above call. - * - * At this point some state updated by the connectors - * in their ->detect() callback has not run yet, so - * no recalculation can be done yet. - * - * Even if we could do a recalculation and modeset - * right now it would cause a double modeset if - * fbdev or userspace chooses a different initial mode. - * - * If that happens, someone indicated they wanted a - * mode change, which means it's safe to do a full - * recalculation. - */ - crtc->base.state->mode.private_flags = I915_MODE_FLAG_INHERITED; - } - - crtc->base.hwmode = crtc->config->base.adjusted_mode; - readout_plane_state(crtc, to_intel_crtc_state(crtc->base.state)); - DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n", crtc->base.base.id, crtc->active ? "enabled" : "disabled"); @@ -15184,6 +15153,7 @@ intel_modeset_setup_hw_state(struct drm_device *dev) enum pipe pipe; struct intel_crtc *crtc; struct intel_encoder *encoder; + struct intel_plane *plane; int i; intel_modeset_readout_hw_state(dev); @@ -15195,6 +15165,40 @@ intel_modeset_setup_hw_state(struct drm_device *dev) for_each_pipe(dev_priv, pipe) { crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); + crtc->base.hwmode = crtc->config->base.adjusted_mode; + memset(&crtc->base.mode, 0, sizeof(crtc->base.mode)); + if (crtc->base.state->active) { + intel_mode_from_pipe_config(&crtc->base.mode, crtc->config); + intel_mode_from_pipe_config(&crtc->base.state->adjusted_mode, crtc->config); + WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, &crtc->base.mode)); + + /* + * The initial mode needs to be set in order to keep + * the atomic core happy. It wants a valid mode if the + * crtc's enabled, so we do the above call. + * + * At this point some state updated by the connectors + * in their ->detect() callback has not run yet, so + * no recalculation can be done yet. + * + * Even if we could do a recalculation and modeset + * right now it would cause a double modeset if + * fbdev or userspace chooses a different initial mode. + * + * If that happens, someone indicated they wanted a + * mode change, which means it's safe to do a full + * recalculation. + */ + crtc->base.state->mode.private_flags = I915_MODE_FLAG_INHERITED; + } + + for_each_intel_plane(crtc->base.dev, plane) { + if (crtc->pipe != plane->pipe) + continue; + + intel_sanitize_plane(plane); + } + intel_sanitize_crtc(crtc); intel_dump_pipe_config(crtc, crtc->config, "[setup_hw_state]"); _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
