1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (c) 2007-2011, Intel Corporation.
44  * to the different groups of PowerVR 5-series chip designs
48  * PowerVR SGX535    - Poulsbo    - Intel GMA 500, Intel Atom Z5xx
49  * PowerVR SGX535    - Moorestown - Intel GMA 600
50  * PowerVR SGX535    - Oaktrail   - Intel GMA 600, Intel Atom Z6xx, E6xx
51  * PowerVR SGX545    - Cedartrail - Intel GMA 3600, Intel Atom D2500, N2600
52  * PowerVR SGX545    - Cedartrail - Intel GMA 3650, Intel Atom D2550, D2700,
97  *	psb_spank		-	reset the 2D engine
123 	PSB_WSGX32(dev_priv->gtt.gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);  in psb_spank()
129 	struct psb_gtt *pg = &dev_priv->gtt;  in psb_do_init()
133 	if (pg->mmu_gatt_start & 0x0FFFFFFF) {  in psb_do_init()
134 		dev_err(dev->dev, "Gatt must be 256M aligned. This is a bug.\n");  in psb_do_init()
135 		return -EINVAL;  in psb_do_init()
138 	stolen_gtt = (pg->stolen_size >> PAGE_SHIFT) * 4;  in psb_do_init()
139 	stolen_gtt = (stolen_gtt + PAGE_SIZE - 1) >> PAGE_SHIFT;  in psb_do_init()
140 	stolen_gtt = (stolen_gtt < pg->gtt_pages) ? stolen_gtt : pg->gtt_pages;  in psb_do_init()
142 	dev_priv->gatt_free_offset = pg->mmu_gatt_start +  in psb_do_init()
145 	spin_lock_init(&dev_priv->irqmask_lock);  in psb_do_init()
151 	/* Do not bypass any MMU access, let them pagefault instead */  in psb_do_init()
159 	PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);  in psb_do_init()
176 	if (dev_priv->ops->chip_teardown)  in psb_driver_unload()
177 		dev_priv->ops->chip_teardown(dev);  in psb_driver_unload()
181 	if (dev_priv->pf_pd) {  in psb_driver_unload()
182 		psb_mmu_free_pagedir(dev_priv->pf_pd);  in psb_driver_unload()
183 		dev_priv->pf_pd = NULL;  in psb_driver_unload()
185 	if (dev_priv->mmu) {  in psb_driver_unload()
186 		struct psb_gtt *pg = &dev_priv->gtt;  in psb_driver_unload()
190 			(dev_priv->mmu),  in psb_driver_unload()
191 			pg->mmu_gatt_start,  in psb_driver_unload()
192 			dev_priv->vram_stolen_size >> PAGE_SHIFT);  in psb_driver_unload()
193 		psb_mmu_driver_takedown(dev_priv->mmu);  in psb_driver_unload()
194 		dev_priv->mmu = NULL;  in psb_driver_unload()
198 	if (dev_priv->scratch_page) {  in psb_driver_unload()
199 		set_pages_wb(dev_priv->scratch_page, 1);  in psb_driver_unload()
200 		__free_page(dev_priv->scratch_page);  in psb_driver_unload()
201 		dev_priv->scratch_page = NULL;  in psb_driver_unload()
203 	if (dev_priv->vdc_reg) {  in psb_driver_unload()
204 		iounmap(dev_priv->vdc_reg);  in psb_driver_unload()
205 		dev_priv->vdc_reg = NULL;  in psb_driver_unload()
207 	if (dev_priv->sgx_reg) {  in psb_driver_unload()
208 		iounmap(dev_priv->sgx_reg);  in psb_driver_unload()
209 		dev_priv->sgx_reg = NULL;  in psb_driver_unload()
211 	if (dev_priv->aux_reg) {  in psb_driver_unload()
212 		iounmap(dev_priv->aux_reg);  in psb_driver_unload()
213 		dev_priv->aux_reg = NULL;  in psb_driver_unload()
215 	pci_dev_put(dev_priv->aux_pdev);  in psb_driver_unload()
216 	pci_dev_put(dev_priv->lpc_pdev);  in psb_driver_unload()
233 	struct pci_dev *pdev = to_pci_dev(dev->dev);  in psb_driver_load()
241 	int ret = -ENOMEM;  in psb_driver_load()
245 	dev_priv->ops = (struct psb_ops *)flags;  in psb_driver_load()
247 	pg = &dev_priv->gtt;  in psb_driver_load()
251 	dev_priv->num_pipe = dev_priv->ops->pipes;  in psb_driver_load()
255 	dev_priv->vdc_reg =  in psb_driver_load()
257 	if (!dev_priv->vdc_reg)  in psb_driver_load()
260 	dev_priv->sgx_reg = ioremap(resource_start + dev_priv->ops->sgx_offset,  in psb_driver_load()
262 	if (!dev_priv->sgx_reg)  in psb_driver_load()
266 		int domain = pci_domain_nr(pdev->bus);  in psb_driver_load()
268 		dev_priv->aux_pdev =  in psb_driver_load()
272 		if (dev_priv->aux_pdev) {  in psb_driver_load()
273 			resource_start = pci_resource_start(dev_priv->aux_pdev,  in psb_driver_load()
275 			resource_len = pci_resource_len(dev_priv->aux_pdev,  in psb_driver_load()
277 			dev_priv->aux_reg = ioremap(resource_start,  in psb_driver_load()
279 			if (!dev_priv->aux_reg)  in psb_driver_load()
285 			dev_priv->aux_reg = dev_priv->vdc_reg;  in psb_driver_load()
288 		dev_priv->gmbus_reg = dev_priv->aux_reg;  in psb_driver_load()
290 		dev_priv->lpc_pdev =  in psb_driver_load()
293 		if (dev_priv->lpc_pdev) {  in psb_driver_load()
294 			pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,  in psb_driver_load()
295 				&dev_priv->lpc_gpio_base);  in psb_driver_load()
296 			pci_write_config_dword(dev_priv->lpc_pdev, PSB_LPC_GBA,  in psb_driver_load()
297 				(u32)dev_priv->lpc_gpio_base | (1L<<31));  in psb_driver_load()
298 			pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,  in psb_driver_load()
299 				&dev_priv->lpc_gpio_base);  in psb_driver_load()
300 			dev_priv->lpc_gpio_base &= 0xffc0;  in psb_driver_load()
301 			if (dev_priv->lpc_gpio_base)  in psb_driver_load()
303 						dev_priv->lpc_gpio_base);  in psb_driver_load()
305 				pci_dev_put(dev_priv->lpc_pdev);  in psb_driver_load()
306 				dev_priv->lpc_pdev = NULL;  in psb_driver_load()
310 		dev_priv->gmbus_reg = dev_priv->vdc_reg;  in psb_driver_load()
315 	ret = dev_priv->ops->chip_setup(dev);  in psb_driver_load()
322 	ret = -ENOMEM;  in psb_driver_load()
324 	dev_priv->scratch_page = alloc_page(GFP_DMA32 | __GFP_ZERO);  in psb_driver_load()
325 	if (!dev_priv->scratch_page)  in psb_driver_load()
328 	set_pages_uc(dev_priv->scratch_page, 1);  in psb_driver_load()
337 	ret = -ENOMEM;  in psb_driver_load()
339 	dev_priv->mmu = psb_mmu_driver_init(dev, 1, 0, NULL);  in psb_driver_load()
340 	if (!dev_priv->mmu)  in psb_driver_load()
343 	dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0);  in psb_driver_load()
344 	if (!dev_priv->pf_pd)  in psb_driver_load()
351 	/* Add stolen memory to SGX MMU */  in psb_driver_load()
352 	ret = psb_mmu_insert_pfn_sequence(psb_mmu_get_default_pd(dev_priv->mmu),  in psb_driver_load()
353 					  dev_priv->stolen_base >> PAGE_SHIFT,  in psb_driver_load()
354 					  pg->gatt_start,  in psb_driver_load()
355 					  pg->stolen_size >> PAGE_SHIFT, 0);  in psb_driver_load()
357 	psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0);  in psb_driver_load()
358 	psb_mmu_set_pd_context(dev_priv->pf_pd, 1);  in psb_driver_load()
366 	ret = drm_vblank_init(dev, dev_priv->num_pipe);  in psb_driver_load()
374 	dev_priv->vdc_irq_mask = 0;  in psb_driver_load()
375 	dev_priv->pipestat[0] = 0;  in psb_driver_load()
376 	dev_priv->pipestat[1] = 0;  in psb_driver_load()
377 	dev_priv->pipestat[2] = 0;  in psb_driver_load()
378 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);  in psb_driver_load()
382 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);  in psb_driver_load()
386 	dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */  in psb_driver_load()
396 		if (gma_encoder->type == INTEL_OUTPUT_LVDS ||  in psb_driver_load()
397 		    gma_encoder->type == INTEL_OUTPUT_MIPI) {  in psb_driver_load()
410 	return devm_add_action_or_reset(dev->dev, psb_device_release, dev);  in psb_driver_load()
427  * currently cannot easily find the framebuffer's location in stolen
439 	const char *name = req_driver->name;  in gma_remove_conflicting_framebuffers()
463 	dev_priv = devm_drm_dev_alloc(&pdev->dev, &driver, struct drm_psb_private, dev);  in psb_pci_probe()
466 	dev = &dev_priv->dev;  in psb_pci_probe()
470 	ret = psb_driver_load(dev, ent->driver_data);  in psb_pci_probe()
474 	ret = drm_dev_register(dev, ent->driver_data);  in psb_pci_probe()
531 		return -ENODEV;  in psb_init()