diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index f055645f6a25..8d0d6348f7c1 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -14777,15 +14777,21 @@ static void skl_commit_modeset_enables(struct intel_atomic_state *state) u8 hw_enabled_slices = dev_priv->wm.skl_hw.ddb.enabled_slices; u8 required_slices = state->wm_results.ddb.enabled_slices; struct skl_ddb_entry entries[I915_MAX_PIPES] = {}; - u8 dirty_pipes = 0; + const u8 num_pipes = INTEL_NUM_PIPES(dev_priv); + u8 update_pipes = 0, modeset_pipes = 0; int i; for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { + if (!new_crtc_state->hw.active) + continue; + /* ignore allocations for crtc's that have been turned off. */ - if (!needs_modeset(new_crtc_state) && new_crtc_state->hw.active) + if (!needs_modeset(new_crtc_state)) { entries[i] = old_crtc_state->wm.skl.ddb; - if (new_crtc_state->hw.active) - dirty_pipes |= BIT(crtc->pipe); + update_pipes |= BIT(crtc->pipe); + } else { + modeset_pipes |= BIT(crtc->pipe); + } } /* If 2nd DBuf slice required, enable it here */ @@ -14795,38 +14801,29 @@ static void skl_commit_modeset_enables(struct intel_atomic_state *state) /* * Whenever the number of active pipes changes, we need to make sure we * update the pipes in the right order so that their ddb allocations - * never overlap with eachother inbetween CRTC updates. Otherwise we'll + * never overlap with each other between CRTC updates. Otherwise we'll * cause pipe underruns and other bad stuff. + * + * So first lets enable all pipes that do not need a fullmodeset as + * those don't have any external dependency. */ - while (dirty_pipes) { + while (update_pipes) { for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { enum pipe pipe = crtc->pipe; - bool modeset = needs_modeset(new_crtc_state); - if ((dirty_pipes & BIT(pipe)) == 0) + if ((update_pipes & BIT(pipe)) == 0) continue; if (skl_ddb_allocation_overlaps(&new_crtc_state->wm.skl.ddb, - entries, - INTEL_NUM_PIPES(dev_priv), i)) + entries, num_pipes, i)) continue; entries[i] = new_crtc_state->wm.skl.ddb; - dirty_pipes &= ~BIT(pipe); + update_pipes &= ~BIT(pipe); - if (modeset && is_trans_port_sync_mode(new_crtc_state)) { - if (is_trans_port_sync_master(new_crtc_state)) - intel_update_trans_port_sync_crtcs(crtc, - state, - old_crtc_state, - new_crtc_state); - else - continue; - } else { - intel_update_crtc(crtc, state, old_crtc_state, - new_crtc_state); - } + intel_update_crtc(crtc, state, old_crtc_state, + new_crtc_state); /* * If this is an already active pipe, it's DDB changed, @@ -14836,11 +14833,72 @@ static void skl_commit_modeset_enables(struct intel_atomic_state *state) */ if (!skl_ddb_entry_equal(&new_crtc_state->wm.skl.ddb, &old_crtc_state->wm.skl.ddb) && - !modeset && dirty_pipes) + (update_pipes | modeset_pipes)) intel_wait_for_vblank(dev_priv, pipe); } } + /* + * Enable all pipes that needs a modeset and do not depends on other + * pipes + */ + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + enum pipe pipe = crtc->pipe; + + if ((modeset_pipes & BIT(pipe)) == 0) + continue; + + if (intel_dp_mst_is_slave_trans(new_crtc_state) || + is_trans_port_sync_slave(new_crtc_state)) + continue; + + WARN_ON(skl_ddb_allocation_overlaps(&new_crtc_state->wm.skl.ddb, + entries, num_pipes, i)); + + entries[i] = new_crtc_state->wm.skl.ddb; + modeset_pipes &= ~BIT(pipe); + + if (is_trans_port_sync_mode(new_crtc_state)) { + struct intel_crtc *slave_crtc; + + intel_update_trans_port_sync_crtcs(crtc, state, + old_crtc_state, + new_crtc_state); + + slave_crtc = intel_get_slave_crtc(new_crtc_state); + /* TODO: update entries[] of slave */ + modeset_pipes &= ~BIT(slave_crtc->pipe); + + } else { + intel_update_crtc(crtc, state, old_crtc_state, + new_crtc_state); + } + } + + /* + * Finally enable all pipes that needs a modeset and depends on + * other pipes, right now it is only MST slaves as both port sync slave + * and master are enabled together + */ + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + enum pipe pipe = crtc->pipe; + + if ((modeset_pipes & BIT(pipe)) == 0) + continue; + + WARN_ON(skl_ddb_allocation_overlaps(&new_crtc_state->wm.skl.ddb, + entries, num_pipes, i)); + + entries[i] = new_crtc_state->wm.skl.ddb; + modeset_pipes &= ~BIT(pipe); + + intel_update_crtc(crtc, state, old_crtc_state, new_crtc_state); + } + + WARN_ON(modeset_pipes); + /* If 2nd DBuf slice is no more required disable it */ if (INTEL_GEN(dev_priv) >= 11 && required_slices < hw_enabled_slices) icl_dbuf_slices_update(dev_priv, required_slices);