1 // SPDX-License-Identifier: GPL-2.0
28 /* Base address of the output.  Raster formats must be 4-byte aligned,
29  * T and LT must be 16-byte aligned or maybe utile-aligned (docs are
34 /* Pitch in bytes for raster images, 16-byte aligned.  For tiled, it's
38 /* For T-tiled imgaes, DST_PITCH should be the number of tiles wide,
42 /* For LT-tiled images, DST_PITCH should be the number of utiles wide,
47 /* Pre-rotation width/height of the image.  Must match HVS config.
49  * If TFORMAT and 32-bit, limit is 1920 for 32-bit and 3840 to 16-bit
50  * and width/height must be tile or utile-aligned as appropriate.  If
66 /* Bits 22-23 are set to 0x01 */
110 /* 888s are non-rotated, raster-only */
139 /* Starts a frame.  Self-clearing. */
145 #define TXP_READ(offset) readl(txp->regs + (offset))
146 #define TXP_WRITE(offset, val) writel(val, txp->regs + (offset))
179 	struct drm_device *dev = connector->dev;  in vc4_txp_connector_get_modes()
181 	return drm_add_modes_noedid(connector, dev->mode_config.max_width,  in vc4_txp_connector_get_modes()
182 				    dev->mode_config.max_height);  in vc4_txp_connector_get_modes()
189 	struct drm_device *dev = connector->dev;  in vc4_txp_connector_mode_valid()
190 	struct drm_mode_config *mode_config = &dev->mode_config;  in vc4_txp_connector_mode_valid()
191 	int w = mode->hdisplay, h = mode->vdisplay;  in vc4_txp_connector_mode_valid()
193 	if (w < mode_config->min_width || w > mode_config->max_width)  in vc4_txp_connector_mode_valid()
196 	if (h < mode_config->min_height || h > mode_config->max_height)  in vc4_txp_connector_mode_valid()
232 	vc4_state->txp_armed = true;  in vc4_txp_armed()
244 	if (!conn_state->writeback_job)  in vc4_txp_connector_atomic_check()
247 	crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);  in vc4_txp_connector_atomic_check()
249 	fb = conn_state->writeback_job->fb;  in vc4_txp_connector_atomic_check()
250 	if (fb->width != crtc_state->mode.hdisplay ||  in vc4_txp_connector_atomic_check()
251 	    fb->height != crtc_state->mode.vdisplay) {  in vc4_txp_connector_atomic_check()
253 			      fb->width, fb->height);  in vc4_txp_connector_atomic_check()
254 		return -EINVAL;  in vc4_txp_connector_atomic_check()
258 		if (fb->format->format == drm_fmts[i])  in vc4_txp_connector_atomic_check()
263 		return -EINVAL;  in vc4_txp_connector_atomic_check()
266 	if (fb->pitches[0] & GENMASK(3, 0))  in vc4_txp_connector_atomic_check()
267 		return -EINVAL;  in vc4_txp_connector_atomic_check()
277 	struct vc4_txp *txp = connector_to_vc4_txp(conn);  in vc4_txp_connector_atomic_commit()  local
284 	if (WARN_ON(!conn_state->writeback_job))  in vc4_txp_connector_atomic_commit()
287 	mode = &conn_state->crtc->state->adjusted_mode;  in vc4_txp_connector_atomic_commit()
288 	fb = conn_state->writeback_job->fb;  in vc4_txp_connector_atomic_commit()
291 		if (fb->format->format == drm_fmts[i])  in vc4_txp_connector_atomic_commit()
302 	if (fb->format->has_alpha)  in vc4_txp_connector_atomic_commit()
306 	TXP_WRITE(TXP_DST_PTR, gem->paddr + fb->offsets[0]);  in vc4_txp_connector_atomic_commit()
307 	TXP_WRITE(TXP_DST_PITCH, fb->pitches[0]);  in vc4_txp_connector_atomic_commit()
309 		  VC4_SET_FIELD(mode->hdisplay, TXP_WIDTH) |  in vc4_txp_connector_atomic_commit()
310 		  VC4_SET_FIELD(mode->vdisplay, TXP_HEIGHT));  in vc4_txp_connector_atomic_commit()
314 	drm_writeback_queue_job(&txp->connector, conn_state);  in vc4_txp_connector_atomic_commit()
347 	struct vc4_txp *txp = encoder_to_vc4_txp(encoder);  in vc4_txp_encoder_disable()  local
397 	state->no_vblank = true;  in vc4_txp_atomic_check()
398 	vc4_state->feed_txp = true;  in vc4_txp_atomic_check()
413 	struct drm_device *dev = crtc->dev;  in vc4_txp_atomic_disable()
424 	if (crtc->state->event) {  in vc4_txp_atomic_disable()
427 		spin_lock_irqsave(&dev->event_lock, flags);  in vc4_txp_atomic_disable()
428 		drm_crtc_send_vblank_event(crtc, crtc->state->event);  in vc4_txp_atomic_disable()
429 		crtc->state->event = NULL;  in vc4_txp_atomic_disable()
430 		spin_unlock_irqrestore(&dev->event_lock, flags);  in vc4_txp_atomic_disable()
443 	struct vc4_txp *txp = data;  in vc4_txp_interrupt()  local
444 	struct vc4_crtc *vc4_crtc = &txp->base;  in vc4_txp_interrupt()
448 	drm_writeback_signal_completion(&txp->connector, 0);  in vc4_txp_interrupt()
464 	struct vc4_txp *txp;  in vc4_txp_bind()  local
473 	txp = devm_kzalloc(dev, sizeof(*txp), GFP_KERNEL);  in vc4_txp_bind()
474 	if (!txp)  in vc4_txp_bind()
475 		return -ENOMEM;  in vc4_txp_bind()
476 	vc4_crtc = &txp->base;  in vc4_txp_bind()
477 	crtc = &vc4_crtc->base;  in vc4_txp_bind()
479 	vc4_crtc->pdev = pdev;  in vc4_txp_bind()
480 	vc4_crtc->data = &vc4_txp_crtc_data;  in vc4_txp_bind()
482 	txp->pdev = pdev;  in vc4_txp_bind()
484 	txp->regs = vc4_ioremap_regs(pdev, 0);  in vc4_txp_bind()
485 	if (IS_ERR(txp->regs))  in vc4_txp_bind()
486 		return PTR_ERR(txp->regs);  in vc4_txp_bind()
487 	txp->regset.base = txp->regs;  in vc4_txp_bind()
488 	txp->regset.regs = txp_regs;  in vc4_txp_bind()
489 	txp->regset.nregs = ARRAY_SIZE(txp_regs);  in vc4_txp_bind()
491 	drm_connector_helper_add(&txp->connector.base,  in vc4_txp_bind()
493 	ret = drm_writeback_connector_init(drm, &txp->connector,  in vc4_txp_bind()
505 	encoder = &txp->connector.encoder;  in vc4_txp_bind()
506 	encoder->possible_crtcs |= drm_crtc_mask(crtc);  in vc4_txp_bind()
509 			       dev_name(dev), txp);  in vc4_txp_bind()
513 	dev_set_drvdata(dev, txp);  in vc4_txp_bind()
514 	vc4->txp = txp;  in vc4_txp_bind()
516 	vc4_debugfs_add_regset32(drm, "txp_regs", &txp->regset);  in vc4_txp_bind()
526 	struct vc4_txp *txp = dev_get_drvdata(dev);  in vc4_txp_unbind()  local
528 	vc4_txp_connector_destroy(&txp->connector.base);  in vc4_txp_unbind()
530 	vc4->txp = NULL;  in vc4_txp_unbind()
540 	return component_add(&pdev->dev, &vc4_txp_ops);  in vc4_txp_probe()
545 	component_del(&pdev->dev, &vc4_txp_ops);  in vc4_txp_remove()
550 	{ .compatible = "brcm,bcm2835-txp" },