1 // SPDX-License-Identifier: GPL-2.0-or-later
62 		return -EINVAL;  in read_handle()
88 				afu->guest->handle = addr;  in read_phys_addr()
91 				afu->guest->p2n_phys += addr;  in read_phys_addr()
92 				afu->guest->p2n_size = size;  in read_phys_addr()
95 				afu->psn_phys += addr;  in read_phys_addr()
96 				afu->adapter->ps_size = size;  in read_phys_addr()
101 				return -EINVAL;  in read_phys_addr()
133 	if (read_handle(afu_np, &afu->guest->handle))  in cxl_of_read_afu_handle()
134 		return -EINVAL;  in cxl_of_read_afu_handle()
135 	pr_devel("AFU handle: 0x%.16llx\n", afu->guest->handle);  in cxl_of_read_afu_handle()
151 		pr_info("Dump of the 'ibm,coherent-platform-function' node properties:\n");  in cxl_of_read_afu_properties()
167 	rc = read_phys_addr(np, "assigned-addresses", afu);  in cxl_of_read_afu_properties()
171 	if (afu->psn_phys == 0)  in cxl_of_read_afu_properties()
172 		afu->psa = false;  in cxl_of_read_afu_properties()
174 		afu->psa = true;  in cxl_of_read_afu_properties()
177 		read_prop_string(np, "ibm,loc-code");  in cxl_of_read_afu_properties()
181 	read_prop_dword(np, "ibm,#processes", &afu->max_procs_virtualised);  in cxl_of_read_afu_properties()
184 		read_prop_dword(np, "ibm,scratchpad-size", &val);  in cxl_of_read_afu_properties()
190 	read_prop_dword(np, "ibm,max-ints-per-process", &afu->guest->max_ints);  in cxl_of_read_afu_properties()
191 	afu->irqs_max = afu->guest->max_ints;  in cxl_of_read_afu_properties()
193 	prop = read_prop_dword(np, "ibm,min-ints-per-process", &afu->pp_irqs);  in cxl_of_read_afu_properties()
199 		afu->pp_irqs--;  in cxl_of_read_afu_properties()
203 		read_prop_dword(np, "ibm,max-ints", &val);  in cxl_of_read_afu_properties()
204 		read_prop_dword(np, "ibm,vpd-size", &val);  in cxl_of_read_afu_properties()
207 	read_prop64_dword(np, "ibm,error-buffer-size", &afu->eb_len);  in cxl_of_read_afu_properties()
208 	afu->eb_offset = 0;  in cxl_of_read_afu_properties()
211 		read_prop_dword(np, "ibm,config-record-type", &val);  in cxl_of_read_afu_properties()
213 	read_prop64_dword(np, "ibm,config-record-size", &afu->crs_len);  in cxl_of_read_afu_properties()
214 	afu->crs_offset = 0;  in cxl_of_read_afu_properties()
216 	read_prop_dword(np, "ibm,#config-records", &afu->crs_num);  in cxl_of_read_afu_properties()
219 		for (i = 0; i < afu->crs_num; i++) {  in cxl_of_read_afu_properties()
220 			rc = cxl_ops->afu_cr_read16(afu, i, PCI_DEVICE_ID,  in cxl_of_read_afu_properties()
223 				pr_info("record %d - device-id: %#x\n",  in cxl_of_read_afu_properties()
225 			rc = cxl_ops->afu_cr_read16(afu, i, PCI_VENDOR_ID,  in cxl_of_read_afu_properties()
228 				pr_info("record %d - vendor-id: %#x\n",  in cxl_of_read_afu_properties()
230 			rc = cxl_ops->afu_cr_read32(afu, i, PCI_CLASS_REVISION,  in cxl_of_read_afu_properties()
234 				pr_info("record %d - class-code: %#x\n",  in cxl_of_read_afu_properties()
239 		read_prop_dword(np, "ibm,function-number", &val);  in cxl_of_read_afu_properties()
240 		read_prop_dword(np, "ibm,privileged-function", &val);  in cxl_of_read_afu_properties()
241 		read_prop_dword(np, "vendor-id", &val);  in cxl_of_read_afu_properties()
242 		read_prop_dword(np, "device-id", &val);  in cxl_of_read_afu_properties()
243 		read_prop_dword(np, "revision-id", &val);  in cxl_of_read_afu_properties()
244 		read_prop_dword(np, "class-code", &val);  in cxl_of_read_afu_properties()
245 		read_prop_dword(np, "subsystem-vendor-id", &val);  in cxl_of_read_afu_properties()
246 		read_prop_dword(np, "subsystem-id", &val);  in cxl_of_read_afu_properties()
249 	 * if "ibm,process-mmio" doesn't exist then per-process mmio is  in cxl_of_read_afu_properties()
253 	prop = read_prop_dword(np, "ibm,process-mmio", &val);  in cxl_of_read_afu_properties()
255 		afu->pp_psa = true;  in cxl_of_read_afu_properties()
257 		afu->pp_psa = false;  in cxl_of_read_afu_properties()
260 		read_prop_dword(np, "ibm,supports-aur", &val);  in cxl_of_read_afu_properties()
261 		read_prop_dword(np, "ibm,supports-csrp", &val);  in cxl_of_read_afu_properties()
262 		read_prop_dword(np, "ibm,supports-prr", &val);  in cxl_of_read_afu_properties()
265 	prop = read_prop_dword(np, "ibm,function-error-interrupt", &val);  in cxl_of_read_afu_properties()
267 		afu->serr_hwirq = val;  in cxl_of_read_afu_properties()
269 	pr_devel("AFU handle: %#llx\n", afu->guest->handle);  in cxl_of_read_afu_properties()
271 		afu->guest->p2n_phys, afu->guest->p2n_size);  in cxl_of_read_afu_properties()
273 		afu->psn_phys, afu->adapter->ps_size);  in cxl_of_read_afu_properties()
274 	pr_devel("Max number of processes virtualised=%i\n",  in cxl_of_read_afu_properties()
275 		afu->max_procs_virtualised);  in cxl_of_read_afu_properties()
276 	pr_devel("Per-process irqs min=%i, max=%i\n", afu->pp_irqs,  in cxl_of_read_afu_properties()
277 		 afu->irqs_max);  in cxl_of_read_afu_properties()
278 	pr_devel("Slice error interrupt=%#lx\n", afu->serr_hwirq);  in cxl_of_read_afu_properties()
287 	struct irq_avail *cur;  in read_adapter_irq_config()  local
289 	ranges = of_get_property(np, "interrupt-ranges", &len);  in read_adapter_irq_config()
291 		return -EINVAL;  in read_adapter_irq_config()
295 	 * with encode-int  in read_adapter_irq_config()
299 		return -EINVAL;  in read_adapter_irq_config()
301 	adapter->guest->irq_avail = kcalloc(nranges, sizeof(struct irq_avail),  in read_adapter_irq_config()
303 	if (adapter->guest->irq_avail == NULL)  in read_adapter_irq_config()
304 		return -ENOMEM;  in read_adapter_irq_config()
306 	adapter->guest->irq_base_offset = be32_to_cpu(ranges[0]);  in read_adapter_irq_config()
308 		cur = &adapter->guest->irq_avail[i];  in read_adapter_irq_config()
309 		cur->offset = be32_to_cpu(ranges[i * 2]);  in read_adapter_irq_config()
310 		cur->range  = be32_to_cpu(ranges[i * 2 + 1]);  in read_adapter_irq_config()
311 		cur->bitmap = bitmap_zalloc(cur->range, GFP_KERNEL);  in read_adapter_irq_config()
312 		if (cur->bitmap == NULL)  in read_adapter_irq_config()
314 		if (cur->offset < adapter->guest->irq_base_offset)  in read_adapter_irq_config()
315 			adapter->guest->irq_base_offset = cur->offset;  in read_adapter_irq_config()
317 			pr_info("available IRQ range: %#lx-%#lx (%lu)\n",  in read_adapter_irq_config()
318 				cur->offset, cur->offset + cur->range - 1,  in read_adapter_irq_config()
319 				cur->range);  in read_adapter_irq_config()
321 	adapter->guest->irq_nranges = nranges;  in read_adapter_irq_config()
322 	spin_lock_init(&adapter->guest->irq_alloc_lock);  in read_adapter_irq_config()
326 	for (i--; i >= 0; i--) {  in read_adapter_irq_config()
327 		cur = &adapter->guest->irq_avail[i];  in read_adapter_irq_config()
328 		bitmap_free(cur->bitmap);  in read_adapter_irq_config()
330 	kfree(adapter->guest->irq_avail);  in read_adapter_irq_config()
331 	adapter->guest->irq_avail = NULL;  in read_adapter_irq_config()
332 	return -ENOMEM;  in read_adapter_irq_config()
337 	if (read_handle(np, &adapter->guest->handle))  in cxl_of_read_adapter_handle()
338 		return -EINVAL;  in cxl_of_read_adapter_handle()
339 	pr_devel("Adapter handle: 0x%.16llx\n", adapter->guest->handle);  in cxl_of_read_adapter_handle()
356 		pr_info("Dump of the 'ibm,coherent-platform-facility' node properties:\n");  in cxl_of_read_adapter_properties()
358 		read_prop_dword(np, "#address-cells", &val);  in cxl_of_read_adapter_properties()
359 		read_prop_dword(np, "#size-cells", &val);  in cxl_of_read_adapter_properties()
378 		read_prop_string(np, "ibm,loc-code");  in cxl_of_read_adapter_properties()
389 	prop = read_prop_dword(np, "ibm,caia-version", &val);  in cxl_of_read_adapter_properties()
391 		adapter->caia_major = (val & 0xFF00) >> 8;  in cxl_of_read_adapter_properties()
392 		adapter->caia_minor = val & 0xFF;  in cxl_of_read_adapter_properties()
395 	prop = read_prop_dword(np, "ibm,psl-revision", &val);  in cxl_of_read_adapter_properties()
397 		adapter->psl_rev = val;  in cxl_of_read_adapter_properties()
401 		adapter->guest->status = kasprintf(GFP_KERNEL, "%s", (char *) prop);  in cxl_of_read_adapter_properties()
402 		if (adapter->guest->status == NULL)  in cxl_of_read_adapter_properties()
403 			return -ENOMEM;  in cxl_of_read_adapter_properties()
406 	prop = read_prop_dword(np, "vendor-id", &val);  in cxl_of_read_adapter_properties()
408 		adapter->guest->vendor = val;  in cxl_of_read_adapter_properties()
410 	prop = read_prop_dword(np, "device-id", &val);  in cxl_of_read_adapter_properties()
412 		adapter->guest->device = val;  in cxl_of_read_adapter_properties()
415 		read_prop_dword(np, "ibm,privileged-facility", &val);  in cxl_of_read_adapter_properties()
416 		read_prop_dword(np, "revision-id", &val);  in cxl_of_read_adapter_properties()
417 		read_prop_dword(np, "class-code", &val);  in cxl_of_read_adapter_properties()
420 	prop = read_prop_dword(np, "subsystem-vendor-id", &val);  in cxl_of_read_adapter_properties()
422 		adapter->guest->subsystem_vendor = val;  in cxl_of_read_adapter_properties()
424 	prop = read_prop_dword(np, "subsystem-id", &val);  in cxl_of_read_adapter_properties()
426 		adapter->guest->subsystem = val;  in cxl_of_read_adapter_properties()
439 	adapter = dev_get_drvdata(&pdev->dev);  in cxl_of_remove()
440 	for (afu = 0; afu < adapter->slices; afu++)  in cxl_of_remove()
441 		cxl_guest_remove_afu(adapter->afu[afu]);  in cxl_of_remove()
462 	np = pdev->dev.of_node;  in cxl_of_probe()
464 		return -ENODEV;  in cxl_of_probe()
469 		dev_err(&pdev->dev, "guest_init_adapter failed: %li\n", PTR_ERR(adapter));  in cxl_of_probe()
476 			dev_err(&pdev->dev, "AFU %i failed to initialise: %i\n",  in cxl_of_probe()
484 		dev_info(&pdev->dev, "No active AFU");  in cxl_of_probe()
485 		adapter->slices = 0;  in cxl_of_probe()
492 	{ .compatible = "ibm,coherent-platform-facility",},