1 // SPDX-License-Identifier: GPL-2.0
31 /* Base address of the output.  Raster formats must be 4-byte aligned,
32  * T and LT must be 16-byte aligned or maybe utile-aligned (docs are
37 /* Pitch in bytes for raster images, 16-byte aligned.  For tiled, it's
41 /* For T-tiled imgaes, DST_PITCH should be the number of tiles wide,
45 /* For LT-tiled images, DST_PITCH should be the number of utiles wide,
50 /* Pre-rotation width/height of the image.  Must match HVS config.
52  * If TFORMAT and 32-bit, limit is 1920 for 32-bit and 3840 to 16-bit
53  * and width/height must be tile or utile-aligned as appropriate.  If
69 /* Bits 22-23 are set to 0x01 */
113 /* 888s are non-rotated, raster-only */
142 /* Starts a frame.  Self-clearing. */
151 		readl(txp->regs + (offset));						\
157 		writel(val, txp->regs + (offset));					\
187 	struct drm_device *dev = connector->dev;  in vc4_txp_connector_get_modes()
189 	return drm_add_modes_noedid(connector, dev->mode_config.max_width,  in vc4_txp_connector_get_modes()
190 				    dev->mode_config.max_height);  in vc4_txp_connector_get_modes()
197 	struct drm_device *dev = connector->dev;  in vc4_txp_connector_mode_valid()
198 	struct drm_mode_config *mode_config = &dev->mode_config;  in vc4_txp_connector_mode_valid()
199 	int w = mode->hdisplay, h = mode->vdisplay;  in vc4_txp_connector_mode_valid()
201 	if (w < mode_config->min_width || w > mode_config->max_width)  in vc4_txp_connector_mode_valid()
204 	if (h < mode_config->min_height || h > mode_config->max_height)  in vc4_txp_connector_mode_valid()
240 	vc4_state->txp_armed = true;  in vc4_txp_armed()
252 	if (!conn_state->writeback_job)  in vc4_txp_connector_atomic_check()
255 	crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);  in vc4_txp_connector_atomic_check()
257 	fb = conn_state->writeback_job->fb;  in vc4_txp_connector_atomic_check()
258 	if (fb->width != crtc_state->mode.hdisplay ||  in vc4_txp_connector_atomic_check()
259 	    fb->height != crtc_state->mode.vdisplay) {  in vc4_txp_connector_atomic_check()
261 			      fb->width, fb->height);  in vc4_txp_connector_atomic_check()
262 		return -EINVAL;  in vc4_txp_connector_atomic_check()
266 		if (fb->format->format == drm_fmts[i])  in vc4_txp_connector_atomic_check()
271 		return -EINVAL;  in vc4_txp_connector_atomic_check()
274 	if (fb->pitches[0] & GENMASK(3, 0))  in vc4_txp_connector_atomic_check()
275 		return -EINVAL;  in vc4_txp_connector_atomic_check()
285 	struct drm_device *drm = conn->dev;  in vc4_txp_connector_atomic_commit()
288 	struct vc4_txp *txp = connector_to_vc4_txp(conn);  in vc4_txp_connector_atomic_commit()  local
296 	if (WARN_ON(!conn_state->writeback_job))  in vc4_txp_connector_atomic_commit()
299 	mode = &conn_state->crtc->state->adjusted_mode;  in vc4_txp_connector_atomic_commit()
300 	fb = conn_state->writeback_job->fb;  in vc4_txp_connector_atomic_commit()
303 		if (fb->format->format == drm_fmts[i])  in vc4_txp_connector_atomic_commit()
314 	if (fb->format->has_alpha)  in vc4_txp_connector_atomic_commit()
327 	TXP_WRITE(TXP_DST_PTR, gem->dma_addr + fb->offsets[0]);  in vc4_txp_connector_atomic_commit()
328 	TXP_WRITE(TXP_DST_PITCH, fb->pitches[0]);  in vc4_txp_connector_atomic_commit()
330 		  VC4_SET_FIELD(mode->hdisplay, TXP_WIDTH) |  in vc4_txp_connector_atomic_commit()
331 		  VC4_SET_FIELD(mode->vdisplay, TXP_HEIGHT));  in vc4_txp_connector_atomic_commit()
335 	drm_writeback_queue_job(&txp->connector, conn_state);  in vc4_txp_connector_atomic_commit()
364 	struct drm_device *drm = encoder->dev;  in vc4_txp_encoder_disable()
365 	struct vc4_txp *txp = encoder_to_vc4_txp(encoder);  in vc4_txp_encoder_disable()  local
421 	crtc_state->no_vblank = true;  in vc4_txp_atomic_check()
436 	struct drm_device *dev = crtc->dev;  in vc4_txp_atomic_disable()
447 	if (crtc->state->event) {  in vc4_txp_atomic_disable()
450 		spin_lock_irqsave(&dev->event_lock, flags);  in vc4_txp_atomic_disable()
451 		drm_crtc_send_vblank_event(crtc, crtc->state->event);  in vc4_txp_atomic_disable()
452 		crtc->state->event = NULL;  in vc4_txp_atomic_disable()
453 		spin_unlock_irqrestore(&dev->event_lock, flags);  in vc4_txp_atomic_disable()
467 	struct vc4_txp *txp = data;  in vc4_txp_interrupt()  local
468 	struct vc4_crtc *vc4_crtc = &txp->base;  in vc4_txp_interrupt()
482 	drm_writeback_signal_completion(&txp->connector, 0);  in vc4_txp_interrupt()
488 	.name = "txp",
501 	struct vc4_txp *txp;  in vc4_txp_bind()  local
508 	txp = drmm_kzalloc(drm, sizeof(*txp), GFP_KERNEL);  in vc4_txp_bind()
509 	if (!txp)  in vc4_txp_bind()
510 		return -ENOMEM;  in vc4_txp_bind()
512 	txp->pdev = pdev;  in vc4_txp_bind()
513 	txp->regs = vc4_ioremap_regs(pdev, 0);  in vc4_txp_bind()
514 	if (IS_ERR(txp->regs))  in vc4_txp_bind()
515 		return PTR_ERR(txp->regs);  in vc4_txp_bind()
517 	vc4_crtc = &txp->base;  in vc4_txp_bind()
518 	vc4_crtc->regset.base = txp->regs;  in vc4_txp_bind()
519 	vc4_crtc->regset.regs = txp_regs;  in vc4_txp_bind()
520 	vc4_crtc->regset.nregs = ARRAY_SIZE(txp_regs);  in vc4_txp_bind()
527 	vc4_encoder = &txp->encoder;  in vc4_txp_bind()
528 	txp->encoder.type = VC4_ENCODER_TYPE_TXP;  in vc4_txp_bind()
530 	encoder = &vc4_encoder->base;  in vc4_txp_bind()
531 	encoder->possible_crtcs = drm_crtc_mask(&vc4_crtc->base);  in vc4_txp_bind()
539 	drm_connector_helper_add(&txp->connector.base,  in vc4_txp_bind()
541 	ret = drm_writeback_connector_init_with_encoder(drm, &txp->connector,  in vc4_txp_bind()
549 			       dev_name(dev), txp);  in vc4_txp_bind()
553 	dev_set_drvdata(dev, txp);  in vc4_txp_bind()
561 	struct vc4_txp *txp = dev_get_drvdata(dev);  in vc4_txp_unbind()  local
563 	drm_connector_cleanup(&txp->connector.base);  in vc4_txp_unbind()
573 	return component_add(&pdev->dev, &vc4_txp_ops);  in vc4_txp_probe()
578 	component_del(&pdev->dev, &vc4_txp_ops);  in vc4_txp_remove()
582 	{ .compatible = "brcm,bcm2835-txp" },