From b06cf5953339db0d173fceb0028a492661624490 Mon Sep 17 00:00:00 2001 From: Stanislav Lisovskiy Date: Mon, 3 Feb 2020 01:06:26 +0200 Subject: [PATCH] drm/i915: Move dbuf slice update to proper place MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Current DBuf slices update wasn't done in proper place, especially its "post" part, which should disable those only once vblank had passed and all other changes are committed. v2: Fix to use dev_priv and intel_atomic_state instead of skl_ddb_values (to be nuked in Villes patch) v3: Renamed "enabled_slices" to "enabled_dbuf_slices_num" (Matt Roper) v4: - Rebase against drm-tip. - Move post_update closer to optimize_watermarks, to prevent unneeded noise from underrun reporting (Ville Syrjälä) Reviewed-by: Matt Roper Reviewed-by: Ville Syrjälä Signed-off-by: Stanislav Lisovskiy Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20200202230630.8975-3-stanislav.lisovskiy@intel.com --- drivers/gpu/drm/i915/display/intel_display.c | 37 +++++++++++++++----- 1 file changed, 28 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 2e78a9b67b28..afb56a95b454 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -15445,13 +15445,33 @@ static void intel_update_trans_port_sync_crtcs(struct intel_crtc *crtc, state); } +static void icl_dbuf_slice_pre_update(struct intel_atomic_state *state) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + u8 hw_enabled_slices = dev_priv->enabled_dbuf_slices_num; + u8 required_slices = state->enabled_dbuf_slices_num; + + /* If 2nd DBuf slice required, enable it here */ + if (INTEL_GEN(dev_priv) >= 11 && required_slices > hw_enabled_slices) + icl_dbuf_slices_update(dev_priv, required_slices); +} + +static void icl_dbuf_slice_post_update(struct intel_atomic_state *state) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + u8 hw_enabled_slices = dev_priv->enabled_dbuf_slices_num; + u8 required_slices = state->enabled_dbuf_slices_num; + + /* 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); +} + static void skl_commit_modeset_enables(struct intel_atomic_state *state) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); struct intel_crtc *crtc; struct intel_crtc_state *old_crtc_state, *new_crtc_state; - u8 hw_enabled_slices = dev_priv->enabled_dbuf_slices_num; - u8 required_slices = state->enabled_dbuf_slices_num; struct skl_ddb_entry entries[I915_MAX_PIPES] = {}; const u8 num_pipes = INTEL_NUM_PIPES(dev_priv); u8 update_pipes = 0, modeset_pipes = 0; @@ -15472,10 +15492,6 @@ static void skl_commit_modeset_enables(struct intel_atomic_state *state) } } - /* If 2nd DBuf slice required, enable it here */ - if (INTEL_GEN(dev_priv) >= 11 && required_slices > hw_enabled_slices) - icl_dbuf_slices_update(dev_priv, required_slices); - /* * 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 @@ -15577,9 +15593,6 @@ static void skl_commit_modeset_enables(struct intel_atomic_state *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); } static void intel_atomic_helper_free_state(struct drm_i915_private *dev_priv) @@ -15706,6 +15719,9 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) if (state->modeset) intel_encoders_update_prepare(state); + /* Enable all new slices, we might need */ + icl_dbuf_slice_pre_update(state); + /* Now enable the clocks, plane, pipe, and connectors that we set up. */ dev_priv->display.commit_modeset_enables(state); @@ -15759,6 +15775,9 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) dev_priv->display.optimize_watermarks(state, crtc); } + /* Disable all slices, we don't need */ + icl_dbuf_slice_post_update(state); + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { intel_post_plane_update(state, crtc); -- 2.30.2