diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_atomic_plane.c | 180 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_atomic_plane.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 188 |
3 files changed, 180 insertions, 192 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c index 0e15fe908855..687fc2e3a0d8 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c @@ -45,6 +45,7 @@ #include "intel_fb_pin.h" #include "intel_pm.h" #include "intel_sprite.h" +#include "skl_scaler.h" static void intel_plane_state_reset(struct intel_plane_state *plane_state, struct intel_plane *plane) @@ -330,6 +331,185 @@ void intel_plane_set_invisible(struct intel_crtc_state *crtc_state, plane_state->uapi.visible = false; } +/* FIXME nuke when all wm code is atomic */ +static bool intel_wm_need_update(const struct intel_plane_state *cur, + struct intel_plane_state *new) +{ + /* Update watermarks on tiling or size changes. */ + if (new->uapi.visible != cur->uapi.visible) + return true; + + if (!cur->hw.fb || !new->hw.fb) + return false; + + if (cur->hw.fb->modifier != new->hw.fb->modifier || + cur->hw.rotation != new->hw.rotation || + drm_rect_width(&new->uapi.src) != drm_rect_width(&cur->uapi.src) || + drm_rect_height(&new->uapi.src) != drm_rect_height(&cur->uapi.src) || + drm_rect_width(&new->uapi.dst) != drm_rect_width(&cur->uapi.dst) || + drm_rect_height(&new->uapi.dst) != drm_rect_height(&cur->uapi.dst)) + return true; + + return false; +} + +static bool intel_plane_is_scaled(const struct intel_plane_state *plane_state) +{ + int src_w = drm_rect_width(&plane_state->uapi.src) >> 16; + int src_h = drm_rect_height(&plane_state->uapi.src) >> 16; + int dst_w = drm_rect_width(&plane_state->uapi.dst); + int dst_h = drm_rect_height(&plane_state->uapi.dst); + + return src_w != dst_w || src_h != dst_h; +} + +static bool intel_plane_do_async_flip(struct intel_plane *plane, + const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + struct drm_i915_private *i915 = to_i915(plane->base.dev); + + if (!plane->async_flip) + return false; + + if (!new_crtc_state->uapi.async_flip) + return false; + + /* + * In platforms after DISPLAY13, we might need to override + * first async flip in order to change watermark levels + * as part of optimization. + * So for those, we are checking if this is a first async flip. + * For platforms earlier than DISPLAY13 we always do async flip. + */ + return DISPLAY_VER(i915) < 13 || old_crtc_state->uapi.async_flip; +} + +static int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_state, + struct intel_crtc_state *new_crtc_state, + const struct intel_plane_state *old_plane_state, + struct intel_plane_state *new_plane_state) +{ + struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc); + struct intel_plane *plane = to_intel_plane(new_plane_state->uapi.plane); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + bool mode_changed = intel_crtc_needs_modeset(new_crtc_state); + bool was_crtc_enabled = old_crtc_state->hw.active; + bool is_crtc_enabled = new_crtc_state->hw.active; + bool turn_off, turn_on, visible, was_visible; + int ret; + + if (DISPLAY_VER(dev_priv) >= 9 && plane->id != PLANE_CURSOR) { + ret = skl_update_scaler_plane(new_crtc_state, new_plane_state); + if (ret) + return ret; + } + + was_visible = old_plane_state->uapi.visible; + visible = new_plane_state->uapi.visible; + + if (!was_crtc_enabled && drm_WARN_ON(&dev_priv->drm, was_visible)) + was_visible = false; + + /* + * Visibility is calculated as if the crtc was on, but + * after scaler setup everything depends on it being off + * when the crtc isn't active. + * + * FIXME this is wrong for watermarks. Watermarks should also + * be computed as if the pipe would be active. Perhaps move + * per-plane wm computation to the .check_plane() hook, and + * only combine the results from all planes in the current place? + */ + if (!is_crtc_enabled) { + intel_plane_set_invisible(new_crtc_state, new_plane_state); + visible = false; + } + + if (!was_visible && !visible) + return 0; + + turn_off = was_visible && (!visible || mode_changed); + turn_on = visible && (!was_visible || mode_changed); + + drm_dbg_atomic(&dev_priv->drm, + "[CRTC:%d:%s] with [PLANE:%d:%s] visible %i -> %i, off %i, on %i, ms %i\n", + crtc->base.base.id, crtc->base.name, + plane->base.base.id, plane->base.name, + was_visible, visible, + turn_off, turn_on, mode_changed); + + if (turn_on) { + if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv)) + new_crtc_state->update_wm_pre = true; + + /* must disable cxsr around plane enable/disable */ + if (plane->id != PLANE_CURSOR) + new_crtc_state->disable_cxsr = true; + } else if (turn_off) { + if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv)) + new_crtc_state->update_wm_post = true; + + /* must disable cxsr around plane enable/disable */ + if (plane->id != PLANE_CURSOR) + new_crtc_state->disable_cxsr = true; + } else if (intel_wm_need_update(old_plane_state, new_plane_state)) { + if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv)) { + /* FIXME bollocks */ + new_crtc_state->update_wm_pre = true; + new_crtc_state->update_wm_post = true; + } + } + + if (visible || was_visible) + new_crtc_state->fb_bits |= plane->frontbuffer_bit; + + /* + * ILK/SNB DVSACNTR/Sprite Enable + * IVB SPR_CTL/Sprite Enable + * "When in Self Refresh Big FIFO mode, a write to enable the + * plane will be internally buffered and delayed while Big FIFO + * mode is exiting." + * + * Which means that enabling the sprite can take an extra frame + * when we start in big FIFO mode (LP1+). Thus we need to drop + * down to LP0 and wait for vblank in order to make sure the + * sprite gets enabled on the next vblank after the register write. + * Doing otherwise would risk enabling the sprite one frame after + * we've already signalled flip completion. We can resume LP1+ + * once the sprite has been enabled. + * + * + * WaCxSRDisabledForSpriteScaling:ivb + * IVB SPR_SCALE/Scaling Enable + * "Low Power watermarks must be disabled for at least one + * frame before enabling sprite scaling, and kept disabled + * until sprite scaling is disabled." + * + * ILK/SNB DVSASCALE/Scaling Enable + * "When in Self Refresh Big FIFO mode, scaling enable will be + * masked off while Big FIFO mode is exiting." + * + * Despite the w/a only being listed for IVB we assume that + * the ILK/SNB note has similar ramifications, hence we apply + * the w/a on all three platforms. + * + * With experimental results seems this is needed also for primary + * plane, not only sprite plane. + */ + if (plane->id != PLANE_CURSOR && + (IS_IRONLAKE(dev_priv) || IS_SANDYBRIDGE(dev_priv) || + IS_IVYBRIDGE(dev_priv)) && + (turn_on || (!intel_plane_is_scaled(old_plane_state) && + intel_plane_is_scaled(new_plane_state)))) + new_crtc_state->disable_lp_wm = true; + + if (intel_plane_do_async_flip(plane, old_crtc_state, new_crtc_state)) + new_plane_state->do_async_flip = true; + + return 0; +} + int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state, struct intel_crtc_state *new_crtc_state, const struct intel_plane_state *old_plane_state, diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.h b/drivers/gpu/drm/i915/display/intel_atomic_plane.h index ead789709477..9822b921279c 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.h +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.h @@ -56,10 +56,6 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_ struct intel_plane_state *intel_state); int intel_plane_atomic_check(struct intel_atomic_state *state, struct intel_plane *plane); -int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_state, - struct intel_crtc_state *crtc_state, - const struct intel_plane_state *old_plane_state, - struct intel_plane_state *plane_state); int intel_plane_calc_min_cdclk(struct intel_atomic_state *state, struct intel_plane *plane, bool *need_cdclk_calc); diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index ae278d5e4fe9..a6ebca9c7f76 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -4668,194 +4668,6 @@ intel_encoder_current_mode(struct intel_encoder *encoder) return mode; } -/** - * intel_wm_need_update - Check whether watermarks need updating - * @cur: current plane state - * @new: new plane state - * - * Check current plane state versus the new one to determine whether - * watermarks need to be recalculated. - * - * Returns true or false. - */ -static bool intel_wm_need_update(const struct intel_plane_state *cur, - struct intel_plane_state *new) -{ - /* Update watermarks on tiling or size changes. */ - if (new->uapi.visible != cur->uapi.visible) - return true; - - if (!cur->hw.fb || !new->hw.fb) - return false; - - if (cur->hw.fb->modifier != new->hw.fb->modifier || - cur->hw.rotation != new->hw.rotation || - drm_rect_width(&new->uapi.src) != drm_rect_width(&cur->uapi.src) || - drm_rect_height(&new->uapi.src) != drm_rect_height(&cur->uapi.src) || - drm_rect_width(&new->uapi.dst) != drm_rect_width(&cur->uapi.dst) || - drm_rect_height(&new->uapi.dst) != drm_rect_height(&cur->uapi.dst)) - return true; - - return false; -} - -static bool needs_scaling(const struct intel_plane_state *state) -{ - int src_w = drm_rect_width(&state->uapi.src) >> 16; - int src_h = drm_rect_height(&state->uapi.src) >> 16; - int dst_w = drm_rect_width(&state->uapi.dst); - int dst_h = drm_rect_height(&state->uapi.dst); - - return (src_w != dst_w || src_h != dst_h); -} - -static bool intel_plane_do_async_flip(struct intel_plane *plane, - const struct intel_crtc_state *old_crtc_state, - const struct intel_crtc_state *new_crtc_state) -{ - struct drm_i915_private *i915 = to_i915(plane->base.dev); - - if (!plane->async_flip) - return false; - - if (!new_crtc_state->uapi.async_flip) - return false; - - /* - * In platforms after DISPLAY13, we might need to override - * first async flip in order to change watermark levels - * as part of optimization. - * So for those, we are checking if this is a first async flip. - * For platforms earlier than DISPLAY13 we always do async flip. - */ - return DISPLAY_VER(i915) < 13 || old_crtc_state->uapi.async_flip; -} - -int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_state, - struct intel_crtc_state *new_crtc_state, - const struct intel_plane_state *old_plane_state, - struct intel_plane_state *new_plane_state) -{ - struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc); - struct intel_plane *plane = to_intel_plane(new_plane_state->uapi.plane); - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - bool mode_changed = intel_crtc_needs_modeset(new_crtc_state); - bool was_crtc_enabled = old_crtc_state->hw.active; - bool is_crtc_enabled = new_crtc_state->hw.active; - bool turn_off, turn_on, visible, was_visible; - int ret; - - if (DISPLAY_VER(dev_priv) >= 9 && plane->id != PLANE_CURSOR) { - ret = skl_update_scaler_plane(new_crtc_state, new_plane_state); - if (ret) - return ret; - } - - was_visible = old_plane_state->uapi.visible; - visible = new_plane_state->uapi.visible; - - if (!was_crtc_enabled && drm_WARN_ON(&dev_priv->drm, was_visible)) - was_visible = false; - - /* - * Visibility is calculated as if the crtc was on, but - * after scaler setup everything depends on it being off - * when the crtc isn't active. - * - * FIXME this is wrong for watermarks. Watermarks should also - * be computed as if the pipe would be active. Perhaps move - * per-plane wm computation to the .check_plane() hook, and - * only combine the results from all planes in the current place? - */ - if (!is_crtc_enabled) { - intel_plane_set_invisible(new_crtc_state, new_plane_state); - visible = false; - } - - if (!was_visible && !visible) - return 0; - - turn_off = was_visible && (!visible || mode_changed); - turn_on = visible && (!was_visible || mode_changed); - - drm_dbg_atomic(&dev_priv->drm, - "[CRTC:%d:%s] with [PLANE:%d:%s] visible %i -> %i, off %i, on %i, ms %i\n", - crtc->base.base.id, crtc->base.name, - plane->base.base.id, plane->base.name, - was_visible, visible, - turn_off, turn_on, mode_changed); - - if (turn_on) { - if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv)) - new_crtc_state->update_wm_pre = true; - - /* must disable cxsr around plane enable/disable */ - if (plane->id != PLANE_CURSOR) - new_crtc_state->disable_cxsr = true; - } else if (turn_off) { - if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv)) - new_crtc_state->update_wm_post = true; - - /* must disable cxsr around plane enable/disable */ - if (plane->id != PLANE_CURSOR) - new_crtc_state->disable_cxsr = true; - } else if (intel_wm_need_update(old_plane_state, new_plane_state)) { - if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv)) { - /* FIXME bollocks */ - new_crtc_state->update_wm_pre = true; - new_crtc_state->update_wm_post = true; - } - } - - if (visible || was_visible) - new_crtc_state->fb_bits |= plane->frontbuffer_bit; - - /* - * ILK/SNB DVSACNTR/Sprite Enable - * IVB SPR_CTL/Sprite Enable - * "When in Self Refresh Big FIFO mode, a write to enable the - * plane will be internally buffered and delayed while Big FIFO - * mode is exiting." - * - * Which means that enabling the sprite can take an extra frame - * when we start in big FIFO mode (LP1+). Thus we need to drop - * down to LP0 and wait for vblank in order to make sure the - * sprite gets enabled on the next vblank after the register write. - * Doing otherwise would risk enabling the sprite one frame after - * we've already signalled flip completion. We can resume LP1+ - * once the sprite has been enabled. - * - * - * WaCxSRDisabledForSpriteScaling:ivb - * IVB SPR_SCALE/Scaling Enable - * "Low Power watermarks must be disabled for at least one - * frame before enabling sprite scaling, and kept disabled - * until sprite scaling is disabled." - * - * ILK/SNB DVSASCALE/Scaling Enable - * "When in Self Refresh Big FIFO mode, scaling enable will be - * masked off while Big FIFO mode is exiting." - * - * Despite the w/a only being listed for IVB we assume that - * the ILK/SNB note has similar ramifications, hence we apply - * the w/a on all three platforms. - * - * With experimental results seems this is needed also for primary - * plane, not only sprite plane. - */ - if (plane->id != PLANE_CURSOR && - (IS_IRONLAKE(dev_priv) || IS_SANDYBRIDGE(dev_priv) || - IS_IVYBRIDGE(dev_priv)) && - (turn_on || (!needs_scaling(old_plane_state) && - needs_scaling(new_plane_state)))) - new_crtc_state->disable_lp_wm = true; - - if (intel_plane_do_async_flip(plane, old_crtc_state, new_crtc_state)) - new_plane_state->do_async_flip = true; - - return 0; -} - static bool encoders_cloneable(const struct intel_encoder *a, const struct intel_encoder *b) { |