/* * Copyright © 2014 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ /** * DOC: atomic plane helpers * * The functions here are used by the atomic plane helper functions to * implement legacy plane updates (i.e., drm_plane->update_plane() and * drm_plane->disable_plane()). This allows plane updates to use the * atomic state infrastructure and perform plane updates as separate * prepare/check/commit/cleanup steps. */ #include #include #include "gt/intel_rps.h" #include "i915_config.h" #include "intel_atomic_plane.h" #include "intel_cdclk.h" #include "intel_display_trace.h" #include "intel_display_types.h" #include "intel_fb.h" #include "intel_fb_pin.h" #include "intel_sprite.h" #include "skl_scaler.h" #include "skl_watermark.h" static void intel_plane_state_reset(struct intel_plane_state *plane_state, struct intel_plane *plane) { memset(plane_state, 0, sizeof(*plane_state)); __drm_atomic_helper_plane_state_reset(&plane_state->uapi, &plane->base); plane_state->scaler_id = -1; } struct intel_plane *intel_plane_alloc(void) { struct intel_plane_state *plane_state; struct intel_plane *plane; plane = kzalloc(sizeof(*plane), GFP_KERNEL); if (!plane) return ERR_PTR(-ENOMEM); plane_state = kzalloc(sizeof(*plane_state), GFP_KERNEL); if (!plane_state) { kfree(plane); return ERR_PTR(-ENOMEM); } intel_plane_state_reset(plane_state, plane); plane->base.state = &plane_state->uapi; return plane; } void intel_plane_free(struct intel_plane *plane) { intel_plane_destroy_state(&plane->base, plane->base.state); kfree(plane); } /** * intel_plane_duplicate_state - duplicate plane state * @plane: drm plane * * Allocates and returns a copy of the plane state (both common and * Intel-specific) for the specified plane. * * Returns: The newly allocated plane state, or NULL on failure. */ struct drm_plane_state * intel_plane_duplicate_state(struct drm_plane *plane) { struct intel_plane_state *intel_state; intel_state = to_intel_plane_state(plane->state); intel_state = kmemdup(intel_state, sizeof(*intel_state), GFP_KERNEL); if (!intel_state) return NULL; __drm_atomic_helper_plane_duplicate_state(plane, &intel_state->uapi); intel_state->ggtt_vma = NULL; intel_state->dpt_vma = NULL; intel_state->flags = 0; /* add reference to fb */ if (intel_state->hw.fb) drm_framebuffer_get(intel_state->hw.fb); return &intel_state->uapi; } /** * intel_plane_destroy_state - destroy plane state * @plane: drm plane * @state: state object to destroy * * Destroys the plane state (both common and Intel-specific) for the * specified plane. */ void intel_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *state) { struct intel_plane_state *plane_state = to_intel_plane_state(state); drm_WARN_ON(plane->dev, plane_state->ggtt_vma); drm_WARN_ON(plane->dev, plane_state->dpt_vma); __drm_atomic_helper_plane_destroy_state(&plane_state->uapi); if (plane_state->hw.fb) drm_framebuffer_put(plane_state->hw.fb); kfree(plane_state); } unsigned int intel_adjusted_rate(const struct drm_rect *src, const struct drm_rect *dst, unsigned int rate) { unsigned int src_w, src_h, dst_w, dst_h; src_w = drm_rect_width(src) >> 16; src_h = drm_rect_height(src) >> 16; dst_w = drm_rect_width(dst); dst_h = drm_rect_height(dst); /* Downscaling limits the maximum pixel rate */ dst_w = min(src_w, dst_w); dst_h = min(src_h, dst_h); return DIV_ROUND_UP_ULL(mul_u32_u32(rate, src_w * src_h), dst_w * dst_h); } unsigned int intel_plane_pixel_rate(const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { /* * Note we don't check for plane visibility here as * we want to use this when calculating the cursor * watermarks even if the cursor is fully offscreen. * That depends on the src/dst rectangles being * correctly populated whenever the watermark code * considers the cursor to be visible, whether or not * it is actually visible. * * See: intel_wm_plane_visible() and intel_check_cursor() */ return intel_adjusted_rate(&plane_state->uapi.src, &plane_state->uapi.dst, crtc_state->pixel_rate); } unsigned int intel_plane_data_rate(const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, int color_plane) { const struct drm_framebuffer *fb = plane_state->hw.fb; if (!plane_state->uapi.visible) return 0; return intel_plane_pixel_rate(crtc_state, plane_state) * fb->format->cpp[color_plane]; } static bool use_min_ddb(const struct intel_crtc_state *crtc_state, struct intel_plane *plane) { struct drm_i915_private *i915 = to_i915(plane->base.dev); return DISPLAY_VER(i915) >= 13 && crtc_state->uapi.async_flip && plane->async_flip; } static unsigned int intel_plane_relative_data_rate(const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, int color_plane) { struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane); const struct drm_framebuffer *fb = plane_state->hw.fb; int width, height; if (plane->id == PLANE_CURSOR) return 0; if (!plane_state->uapi.visible) return 0; /* * We calculate extra ddb based on ratio plane rate/total data rate * in case, in some cases we should not allocate extra ddb for the plane, * so do not count its data rate, if this is the case. */ if (use_min_ddb(crtc_state, plane)) return 0; /* * Src coordinates are already rotated by 270 degrees for * the 90/270 degree plane rotation cases (to match the * GTT mapping), hence no need to account for rotation here. */ width = drm_rect_width(&plane_state->uapi.src) >> 16; height = drm_rect_height(&plane_state->uapi.src) >> 16; /* UV plane does 1/2 pixel sub-sampling */ if (color_plane == 1) { width /= 2; height /= 2; } return width * height * fb->format->cpp[color_plane]; } int intel_plane_calc_min_cdclk(struct intel_atomic_state *state, struct intel_plane *plane, bool *need_cdclk_calc) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); const struct intel_plane_state *plane_state = intel_atomic_get_new_plane_state(state, plane); struct intel_crtc *crtc = to_intel_crtc(plane_state->hw.crtc); const struct intel_cdclk_state *cdclk_state; const struct intel_crtc_state *old_crtc_state; struct intel_crtc_state *new_crtc_state; if (!plane_state->uapi.visible || !plane->min_cdclk) return 0; old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc); new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc); new_crtc_state->min_cdclk[plane->id] = plane->min_cdclk(new_crtc_state, plane_state); /* * No need to check against the cdclk state if * the min cdclk for the plane doesn't increase. * * Ie. we only ever increase the cdclk due to plane * requirements. This can reduce back and forth * display blinking due to constant cdclk changes. */ if (new_crtc_state->min_cdclk[plane->id] <= old_crtc_state->min_cdclk[plane->id]) return 0; cdclk_state = intel_atomic_get_cdclk_state(state); if (IS_ERR(cdclk_state)) return PTR_ERR(cdclk_state); /* * No need to recalculate the cdclk state if * the min cdclk for the pipe doesn't increase. * * Ie. we only ever increase the cdclk due to plane * requirements. This can reduce back and forth * display blinking due to constant cdclk changes. */ if (new_crtc_state->min_cdclk[plane->id] <= cdclk_state->min_cdclk[crtc->pipe]) return 0; drm_dbg_kms(&dev_priv->drm, "[PLANE:%d:%s] min cdclk (%d kHz) > [CRTC:%d:%s] min cdclk (%d kHz)\n", plane->base.base.id, plane->base.name, new_crtc_state->min_cdclk[plane->id], crtc->base.base.id, crtc->base.name, cdclk_state->min_cdclk[crtc->pipe]); *need_cdclk_calc = true; return 0; } static void intel_plane_clear_hw_state(struct intel_plane_state *plane_state) { if (plane_state->hw.fb) drm_framebuffer_put(plane_state->hw.fb); memset(&plane_state->hw, 0, sizeof(plane_state->hw)); } void intel_plane_copy_uapi_to_hw_state(struct intel_plane_state *plane_state, const struct intel_plane_state *from_plane_state, struct intel_crtc *crtc) { intel_plane_clear_hw_state(plane_state); /* * For the bigjoiner slave uapi.crtc will point at * the master crtc. So we explicitly assign the right * slave crtc to hw.crtc. uapi.crtc!=NULL simply indicates * the plane is logically enabled on the uapi level. */ plane_state->hw.crtc = from_plane_state->uapi.crtc ? &crtc->base : NULL; plane_state->hw.fb = from_plane_state->uapi.fb; if (plane_state->hw.fb) drm_framebuffer_get(plane_state->hw.fb); plane_state->hw.alpha = from_plane_state->uapi.alpha; plane_state->hw.pixel_blend_mode = from_plane_state->uapi.pixel_blend_mode; plane_state->hw.rotation = from_plane_state->uapi.rotation; plane_state->hw.color_encoding = from_plane_state->uapi.color_encoding; plane_state->hw.color_range = from_plane_state->uapi.color_range; plane_state->hw.scaling_filter = from_plane_state->uapi.scaling_filter; plane_state->uapi.src = drm_plane_state_src(&from_plane_state->uapi); plane_state->uapi.dst = drm_plane_state_dest(&from_plane_state->uapi); } void intel_plane_copy_hw_state(struct intel_plane_state *plane_state, const struct intel_plane_state *from_plane_state) { intel_plane_clear_hw_state(plane_state); memcpy(&plane_state->hw, &from_plane_state->hw, sizeof(plane_state->hw)); if (plane_state->hw.fb) drm_framebuffer_get(plane_state->hw.fb); } void intel_plane_set_invisible(struct intel_crtc_state *crtc_state, struct intel_plane_state *plane_state) { struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane); crtc_state->active_planes &= ~BIT(plane->id); crtc_state->scaled_planes &= ~BIT(plane->id); crtc_state->nv12_planes &= ~BIT(plane->id); crtc_state->c8_planes &= ~BIT(plane->id); crtc_state->data_rate[plane->id] = 0; crtc_state->data_rate_y[plane->id] = 0; crtc_state->rel_data_rate[plane->id] = 0; crtc_state->rel_data_rate_y[plane->id] = 0; crtc_state->min_cdclk[plane->id] = 0; 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 bool i9xx_must_disable_cxsr(const struct intel_crtc_state *new_crtc_state, const struct intel_plane_state *old_plane_state, const struct intel_plane_state *new_plane_state) { struct intel_plane *plane = to_intel_plane(new_plane_state->uapi.plane); bool old_visible = old_plane_state->uapi.visible; bool new_visible = new_plane_state->uapi.visible; u32 old_ctl = old_plane_state->ctl; u32 new_ctl = new_plane_state->ctl; bool modeset, turn_on, turn_off; if (plane->id == PLANE_CURSOR) return false; modeset = intel_crtc_needs_modeset(new_crtc_state); turn_off = old_visible && (!new_visible || modeset); turn_on = new_visible && (!old_visible || modeset); /* Must disable CxSR around plane enable/disable */ if (turn_on || turn_off) return true; if (!old_visible || !new_visible) return false; /* * Most plane control register updates are blocked while in CxSR. * * Tiling mode is one exception where the primary plane can * apparently handle it, whereas the sprites can not (the * sprite issue being only relevant on VLV/CHV where CxSR * is actually possible with a sprite enabled). */ if (plane->id == PLANE_PRIMARY) { old_ctl &= ~DISP_TILED; new_ctl &= ~DISP_TILED; } return old_ctl != new_ctl; } 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; } else if (turn_off) { if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv)) new_crtc_state->update_wm_post = 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; if (HAS_GMCH(dev_priv) && i9xx_must_disable_cxsr(new_crtc_state, old_plane_state, new_plane_state)) new_crtc_state->disable_cxsr = true; /* * 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_crtc_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, struct intel_plane_state *new_plane_state) { struct intel_plane *plane = to_intel_plane(new_plane_state->uapi.plane); const struct drm_framebuffer *fb = new_plane_state->hw.fb; int ret; intel_plane_set_invisible(new_crtc_state, new_plane_state); new_crtc_state->enabled_planes &= ~BIT(plane->id); if (!new_plane_state->hw.crtc && !old_plane_state->hw.crtc) return 0; ret = plane->check_plane(new_crtc_state, new_plane_state); if (ret) return ret; if (fb) new_crtc_state->enabled_planes |= BIT(plane->id); /* FIXME pre-g4x don't work like this */ if (new_plane_state->uapi.visible) new_crtc_state->active_planes |= BIT(plane->id); if (new_plane_state->uapi.visible && intel_plane_is_scaled(new_plane_state)) new_crtc_state->scaled_planes |= BIT(plane->id); if (new_plane_state->uapi.visible && intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier)) new_crtc_state->nv12_planes |= BIT(plane->id); if (new_plane_state->uapi.visible && fb->format->format == DRM_FORMAT_C8) new_crtc_state->c8_planes |= BIT(plane->id); if (new_plane_state->uapi.visible || old_plane_state->uapi.visible) new_crtc_state->update_planes |= BIT(plane->id); if (new_plane_state->uapi.visible && intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier)) { new_crtc_state->data_rate_y[plane->id] = intel_plane_data_rate(new_crtc_state, new_plane_state, 0); new_crtc_state->data_rate[plane->id] = intel_plane_data_rate(new_crtc_state, new_plane_state, 1); new_crtc_state->rel_data_rate_y[plane->id] = intel_plane_relative_data_rate(new_crtc_state, new_plane_state, 0); new_crtc_state->rel_data_rate[plane->id] = intel_plane_relative_data_rate(new_crtc_state, new_plane_state, 1); } else if (new_plane_state->uapi.visible) { new_crtc_state->data_rate[plane->id] = intel_plane_data_rate(new_crtc_state, new_plane_state, 0); new_crtc_state->rel_data_rate[plane->id] = intel_plane_relative_data_rate(new_crtc_state, new_plane_state, 0); } return intel_plane_atomic_calc_changes(old_crtc_state, new_crtc_state, old_plane_state, new_plane_state); } static struct intel_plane * intel_crtc_get_plane(struct intel_crtc *crtc, enum plane_id plane_id) { struct drm_i915_private *i915 = to_i915(crtc->base.dev); struct intel_plane *plane; for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) { if (plane->id == plane_id) return plane; } return NULL; } int intel_plane_atomic_check(struct intel_atomic_state *state, struct intel_plane *plane) { struct drm_i915_private *i915 = to_i915(state->base.dev); struct intel_plane_state *new_plane_state = intel_atomic_get_new_plane_state(state, plane); const struct intel_plane_state *old_plane_state = intel_atomic_get_old_plane_state(state, plane); const struct intel_plane_state *new_master_plane_state; struct intel_crtc *crtc = intel_crtc_for_pipe(i915, plane->pipe); const struct intel_crtc_state *old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc); struct intel_crtc_state *new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc); if (new_crtc_state && intel_crtc_is_bigjoiner_slave(new_crtc_state)) { struct intel_crtc *master_crtc = intel_master_crtc(new_crtc_state); struct intel_plane *master_plane = intel_crtc_get_plane(master_crtc, plane->id); new_master_plane_state = intel_atomic_get_new_plane_state(state, master_plane); } else { new_master_plane_state = new_plane_state; } intel_plane_copy_uapi_to_hw_state(new_plane_state, new_master_plane_state, crtc); new_plane_state->uapi.visible = false; if (!new_crtc_state) return 0; return intel_plane_atomic_check_with_state(old_crtc_state, new_crtc_state, old_plane_state, new_plane_state); } static struct intel_plane * skl_next_plane_to_commit(struct intel_atomic_state *state, struct intel_crtc *crtc, struct skl_ddb_entry ddb[I915_MAX_PLANES], struct skl_ddb_entry ddb_y[I915_MAX_PLANES], unsigned int *update_mask) { struct intel_crtc_state *crtc_state = intel_atomic_get_new_crtc_state(state, crtc); struct intel_plane_state *plane_state; struct intel_plane *plane; int i; if (*update_mask == 0) return NULL; for_each_new_intel_plane_in_state(state, plane, plane_state, i) { enum plane_id plane_id = plane->id; if (crtc->pipe != plane->pipe || !(*update_mask & BIT(plane_id))) continue; if (skl_ddb_allocation_overlaps(&crtc_state->wm.skl.plane_ddb[plane_id], ddb, I915_MAX_PLANES, plane_id) || skl_ddb_allocation_overlaps(&crtc_state->wm.skl.plane_ddb_y[plane_id], ddb_y, I915_MAX_PLANES, plane_id)) continue; *update_mask &= ~BIT(plane_id); ddb[plane_id] = crtc_state->wm.skl.plane_ddb[plane_id]; ddb_y[plane_id] = crtc_state->wm.skl.plane_ddb_y[plane_id]; return plane; } /* should never happen */ drm_WARN_ON(state->base.dev, 1); return NULL; } void intel_plane_update_noarm(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); trace_intel_plane_update_noarm(plane, crtc); if (plane->update_noarm) plane->update_noarm(plane, crtc_state, plane_state); } void intel_plane_update_arm(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); trace_intel_plane_update_arm(plane, crtc); if (crtc_state->do_async_flip && plane->async_flip) plane->async_flip(plane, crtc_state, plane_state, true); else plane->update_arm(plane, crtc_state, plane_state); } void intel_plane_disable_arm(struct intel_plane *plane, const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); trace_intel_plane_disable_arm(plane, crtc); plane->disable_arm(plane, crtc_state); } void intel_crtc_planes_update_noarm(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct intel_crtc_state *new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc); u32 update_mask = new_crtc_state->update_planes; struct intel_plane_state *new_plane_state; struct intel_plane *plane; int i; if (new_crtc_state->do_async_flip) return; /* * Since we only write non-arming registers here, * the order does not matter even for skl+. */ for_each_new_intel_plane_in_state(state, plane, new_plane_state, i) { if (crtc->pipe != plane->pipe || !(update_mask & BIT(plane->id))) continue; /* TODO: for mailbox updates this should be skipped */ if (new_plane_state->uapi.visible || new_plane_state->planar_slave) intel_plane_update_noarm(plane, new_crtc_state, new_plane_state); } } static void skl_crtc_planes_update_arm(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct intel_crtc_state *old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc); struct intel_crtc_state *new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc); struct skl_ddb_entry ddb[I915_MAX_PLANES]; struct skl_ddb_entry ddb_y[I915_MAX_PLANES]; u32 update_mask = new_crtc_state->update_planes; struct intel_plane *plane; memcpy(ddb, old_crtc_state->wm.skl.plane_ddb, sizeof(old_crtc_state->wm.skl.plane_ddb)); memcpy(ddb_y, old_crtc_state->wm.skl.plane_ddb_y, sizeof(old_crtc_state->wm.skl.plane_ddb_y)); while ((plane = skl_next_plane_to_commit(state, crtc, ddb, ddb_y, &update_mask))) { struct intel_plane_state *new_plane_state = intel_atomic_get_new_plane_state(state, plane); /* * TODO: for mailbox updates intel_plane_update_noarm() * would have to be called here as well. */ if (new_plane_state->uapi.visible || new_plane_state->planar_slave) intel_plane_update_arm(plane, new_crtc_state, new_plane_state); else intel_plane_disable_arm(plane, new_crtc_state); } } static void i9xx_crtc_planes_update_arm(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct intel_crtc_state *new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc); u32 update_mask = new_crtc_state->update_planes; struct intel_plane_state *new_plane_state; struct intel_plane *plane; int i; for_each_new_intel_plane_in_state(state, plane, new_plane_state, i) { if (crtc->pipe != plane->pipe || !(update_mask & BIT(plane->id))) continue; /* * TODO: for mailbox updates intel_plane_update_noarm() * would have to be called here as well. */ if (new_plane_state->uapi.visible) intel_plane_update_arm(plane, new_crtc_state, new_plane_state); else intel_plane_disable_arm(plane, new_crtc_state); } } void intel_crtc_planes_update_arm(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct drm_i915_private *i915 = to_i915(state->base.dev); if (DISPLAY_VER(i915) >= 9) skl_crtc_planes_update_arm(state, crtc); else i9xx_crtc_planes_update_arm(state, crtc); } int intel_atomic_plane_check_clipping(struct intel_plane_state *plane_state, struct intel_crtc_state *crtc_state, int min_scale, int max_scale, bool can_position) { struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); struct drm_framebuffer *fb = plane_state->hw.fb; struct drm_rect *src = &plane_state->uapi.src; struct drm_rect *dst = &plane_state->uapi.dst; const struct drm_rect *clip = &crtc_state->pipe_src; unsigned int rotation = plane_state->hw.rotation; int hscale, vscale; if (!fb) { plane_state->uapi.visible = false; return 0; } drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation); /* Check scaling */ hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale); vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale); if (hscale < 0 || vscale < 0) { drm_dbg_kms(&i915->drm, "Invalid scaling of plane\n"); drm_rect_debug_print("src: ", src, true); drm_rect_debug_print("dst: ", dst, false); return -ERANGE; } /* * FIXME: This might need further adjustment for seamless scaling * with phase information, for the 2p2 and 2p1 scenarios. */ plane_state->uapi.visible = drm_rect_clip_scaled(src, dst, clip); drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation); if (!can_position && plane_state->uapi.visible && !drm_rect_equals(dst, clip)) { drm_dbg_kms(&i915->drm, "Plane must cover entire CRTC\n"); drm_rect_debug_print("dst: ", dst, false); drm_rect_debug_print("clip: ", clip, false); return -EINVAL; } /* final plane coordinates will be relative to the plane's pipe */ drm_rect_translate(dst, -clip->x1, -clip->y1); return 0; } struct wait_rps_boost { struct wait_queue_entry wait; struct drm_crtc *crtc; struct i915_request *request; }; static int do_rps_boost(struct wait_queue_entry *_wait, unsigned mode, int sync, void *key) { struct wait_rps_boost *wait = container_of(_wait, typeof(*wait), wait); struct i915_request *rq = wait->request; /* * If we missed the vblank, but the request is already running it * is reasonable to assume that it will complete before the next * vblank without our intervention, so leave RPS alone. */ if (!i915_request_started(rq)) intel_rps_boost(rq); i915_request_put(rq); drm_crtc_vblank_put(wait->crtc); list_del(&wait->wait.entry); kfree(wait); return 1; } static void add_rps_boost_after_vblank(struct drm_crtc *crtc, struct dma_fence *fence) { struct wait_rps_boost *wait; if (!dma_fence_is_i915(fence)) return; if (DISPLAY_VER(to_i915(crtc->dev)) < 6) return; if (drm_crtc_vblank_get(crtc)) return; wait = kmalloc(sizeof(*wait), GFP_KERNEL); if (!wait) { drm_crtc_vblank_put(crtc); return; } wait->request = to_request(dma_fence_get(fence)); wait->crtc = crtc; wait->wait.func = do_rps_boost; wait->wait.flags = 0; add_wait_queue(drm_crtc_vblank_waitqueue(crtc), &wait->wait); } /** * intel_prepare_plane_fb - Prepare fb for usage on plane * @_plane: drm plane to prepare for * @_new_plane_state: the plane state being prepared * * Prepares a framebuffer for usage on a display plane. Generally this * involves pinning the underlying object and updating the frontbuffer tracking * bits. Some older platforms need special physical address handling for * cursor planes. * * Returns 0 on success, negative error code on failure. */ static int intel_prepare_plane_fb(struct drm_plane *_plane, struct drm_plane_state *_new_plane_state) { struct i915_sched_attr attr = { .priority = I915_PRIORITY_DISPLAY }; struct intel_plane *plane = to_intel_plane(_plane); struct intel_plane_state *new_plane_state = to_intel_plane_state(_new_plane_state); struct intel_atomic_state *state = to_intel_atomic_state(new_plane_state->uapi.state); struct drm_i915_private *dev_priv = to_i915(plane->base.dev); const struct intel_plane_state *old_plane_state = intel_atomic_get_old_plane_state(state, plane); struct drm_i915_gem_object *obj = intel_fb_obj(new_plane_state->hw.fb); struct drm_i915_gem_object *old_obj = intel_fb_obj(old_plane_state->hw.fb); int ret; if (old_obj) { const struct intel_crtc_state *new_crtc_state = intel_atomic_get_new_crtc_state(state, to_intel_crtc(old_plane_state->hw.crtc)); /* Big Hammer, we also need to ensure that any pending * MI_WAIT_FOR_EVENT inside a user batch buffer on the * current scanout is retired before unpinning the old * framebuffer. Note that we rely on userspace rendering * into the buffer attached to the pipe they are waiting * on. If not, userspace generates a GPU hang with IPEHR * point to the MI_WAIT_FOR_EVENT. * * This should only fail upon a hung GPU, in which case we * can safely continue. */ if (new_crtc_state && intel_crtc_needs_modeset(new_crtc_state)) { ret = i915_sw_fence_await_reservation(&state->commit_ready, old_obj->base.resv, false, 0, GFP_KERNEL); if (ret < 0) return ret; } } if (new_plane_state->uapi.fence) { /* explicit fencing */ i915_gem_fence_wait_priority(new_plane_state->uapi.fence, &attr); ret = i915_sw_fence_await_dma_fence(&state->commit_ready, new_plane_state->uapi.fence, i915_fence_timeout(dev_priv), GFP_KERNEL); if (ret < 0) return ret; } if (!obj) return 0; ret = intel_plane_pin_fb(new_plane_state); if (ret) return ret; i915_gem_object_wait_priority(obj, 0, &attr); if (!new_plane_state->uapi.fence) { /* implicit fencing */ struct dma_resv_iter cursor; struct dma_fence *fence; ret = i915_sw_fence_await_reservation(&state->commit_ready, obj->base.resv, false, i915_fence_timeout(dev_priv), GFP_KERNEL); if (ret < 0) goto unpin_fb; dma_resv_iter_begin(&cursor, obj->base.resv, DMA_RESV_USAGE_WRITE); dma_resv_for_each_fence_unlocked(&cursor, fence) { add_rps_boost_after_vblank(new_plane_state->hw.crtc, fence); } dma_resv_iter_end(&cursor); } else { add_rps_boost_after_vblank(new_plane_state->hw.crtc, new_plane_state->uapi.fence); } /* * We declare pageflips to be interactive and so merit a small bias * towards upclocking to deliver the frame on time. By only changing * the RPS thresholds to sample more regularly and aim for higher * clocks we can hopefully deliver low power workloads (like kodi) * that are not quite steady state without resorting to forcing * maximum clocks following a vblank miss (see do_rps_boost()). */ if (!state->rps_interactive) { intel_rps_mark_interactive(&to_gt(dev_priv)->rps, true); state->rps_interactive = true; } return 0; unpin_fb: intel_plane_unpin_fb(new_plane_state); return ret; } /** * intel_cleanup_plane_fb - Cleans up an fb after plane use * @plane: drm plane to clean up for * @_old_plane_state: the state from the previous modeset * * Cleans up a framebuffer that has just been removed from a plane. */ static void intel_cleanup_plane_fb(struct drm_plane *plane, struct drm_plane_state *_old_plane_state) { struct intel_plane_state *old_plane_state = to_intel_plane_state(_old_plane_state); struct intel_atomic_state *state = to_intel_atomic_state(old_plane_state->uapi.state); struct drm_i915_private *dev_priv = to_i915(plane->dev); struct drm_i915_gem_object *obj = intel_fb_obj(old_plane_state->hw.fb); if (!obj) return; if (state->rps_interactive) { intel_rps_mark_interactive(&to_gt(dev_priv)->rps, false); state->rps_interactive = false; } /* Should only be called after a successful intel_prepare_plane_fb()! */ intel_plane_unpin_fb(old_plane_state); } static const struct drm_plane_helper_funcs intel_plane_helper_funcs = { .prepare_fb = intel_prepare_plane_fb, .cleanup_fb = intel_cleanup_plane_fb, }; void intel_plane_helper_add(struct intel_plane *plane) { drm_plane_helper_add(&plane->base, &intel_plane_helper_funcs); }