1 // SPDX-License-Identifier: GPL-2.0-or-later
35 				afu->guest->handle = addr;  in read_phys_addr()
38 				afu->guest->p2n_phys += addr;  in read_phys_addr()
39 				afu->guest->p2n_size = size;  in read_phys_addr()
42 				afu->psn_phys += addr;  in read_phys_addr()
43 				afu->adapter->ps_size = size;  in read_phys_addr()
48 				return -EINVAL;  in read_phys_addr()
77 	return of_property_read_reg(afu_np, 0, &afu->guest->handle, NULL);  in cxl_of_read_afu_handle()
92 	rc = read_phys_addr(np, "assigned-addresses", afu);  in cxl_of_read_afu_properties()
96 	if (afu->psn_phys == 0)  in cxl_of_read_afu_properties()
97 		afu->psa = false;  in cxl_of_read_afu_properties()
99 		afu->psa = true;  in cxl_of_read_afu_properties()
101 	of_property_read_u32(np, "ibm,#processes", &afu->max_procs_virtualised);  in cxl_of_read_afu_properties()
106 	of_property_read_u32(np, "ibm,max-ints-per-process", &afu->guest->max_ints);  in cxl_of_read_afu_properties()
107 	afu->irqs_max = afu->guest->max_ints;  in cxl_of_read_afu_properties()
109 	if (!of_property_read_u32(np, "ibm,min-ints-per-process", &afu->pp_irqs)) {  in cxl_of_read_afu_properties()
114 		afu->pp_irqs--;  in cxl_of_read_afu_properties()
117 	of_property_read_u64(np, "ibm,error-buffer-size", &afu->eb_len);  in cxl_of_read_afu_properties()
118 	afu->eb_offset = 0;  in cxl_of_read_afu_properties()
120 	of_property_read_u64(np, "ibm,config-record-size", &afu->crs_len);  in cxl_of_read_afu_properties()
121 	afu->crs_offset = 0;  in cxl_of_read_afu_properties()
123 	of_property_read_u32(np, "ibm,#config-records", &afu->crs_num);  in cxl_of_read_afu_properties()
126 		for (i = 0; i < afu->crs_num; i++) {  in cxl_of_read_afu_properties()
127 			rc = cxl_ops->afu_cr_read16(afu, i, PCI_DEVICE_ID,  in cxl_of_read_afu_properties()
130 				pr_info("record %d - device-id: %#x\n",  in cxl_of_read_afu_properties()
132 			rc = cxl_ops->afu_cr_read16(afu, i, PCI_VENDOR_ID,  in cxl_of_read_afu_properties()
135 				pr_info("record %d - vendor-id: %#x\n",  in cxl_of_read_afu_properties()
137 			rc = cxl_ops->afu_cr_read32(afu, i, PCI_CLASS_REVISION,  in cxl_of_read_afu_properties()
141 				pr_info("record %d - class-code: %#x\n",  in cxl_of_read_afu_properties()
147 	 * if "ibm,process-mmio" doesn't exist then per-process mmio is  in cxl_of_read_afu_properties()
151 	if (!of_property_read_u32(np, "ibm,process-mmio", &val) && val == 1)  in cxl_of_read_afu_properties()
152 		afu->pp_psa = true;  in cxl_of_read_afu_properties()
154 		afu->pp_psa = false;  in cxl_of_read_afu_properties()
156 	if (!of_property_read_u32(np, "ibm,function-error-interrupt", &val))  in cxl_of_read_afu_properties()
157 		afu->serr_hwirq = val;  in cxl_of_read_afu_properties()
159 	pr_devel("AFU handle: %#llx\n", afu->guest->handle);  in cxl_of_read_afu_properties()
161 		afu->guest->p2n_phys, afu->guest->p2n_size);  in cxl_of_read_afu_properties()
163 		afu->psn_phys, afu->adapter->ps_size);  in cxl_of_read_afu_properties()
164 	pr_devel("Max number of processes virtualised=%i\n",  in cxl_of_read_afu_properties()
165 		afu->max_procs_virtualised);  in cxl_of_read_afu_properties()
166 	pr_devel("Per-process irqs min=%i, max=%i\n", afu->pp_irqs,  in cxl_of_read_afu_properties()
167 		 afu->irqs_max);  in cxl_of_read_afu_properties()
168 	pr_devel("Slice error interrupt=%#lx\n", afu->serr_hwirq);  in cxl_of_read_afu_properties()
177 	struct irq_avail *cur;  in read_adapter_irq_config()  local
179 	ranges = of_get_property(np, "interrupt-ranges", &len);  in read_adapter_irq_config()
181 		return -EINVAL;  in read_adapter_irq_config()
185 	 * with encode-int  in read_adapter_irq_config()
189 		return -EINVAL;  in read_adapter_irq_config()
191 	adapter->guest->irq_avail = kcalloc(nranges, sizeof(struct irq_avail),  in read_adapter_irq_config()
193 	if (adapter->guest->irq_avail == NULL)  in read_adapter_irq_config()
194 		return -ENOMEM;  in read_adapter_irq_config()
196 	adapter->guest->irq_base_offset = be32_to_cpu(ranges[0]);  in read_adapter_irq_config()
198 		cur = &adapter->guest->irq_avail[i];  in read_adapter_irq_config()
199 		cur->offset = be32_to_cpu(ranges[i * 2]);  in read_adapter_irq_config()
200 		cur->range  = be32_to_cpu(ranges[i * 2 + 1]);  in read_adapter_irq_config()
201 		cur->bitmap = bitmap_zalloc(cur->range, GFP_KERNEL);  in read_adapter_irq_config()
202 		if (cur->bitmap == NULL)  in read_adapter_irq_config()
204 		if (cur->offset < adapter->guest->irq_base_offset)  in read_adapter_irq_config()
205 			adapter->guest->irq_base_offset = cur->offset;  in read_adapter_irq_config()
207 			pr_info("available IRQ range: %#lx-%#lx (%lu)\n",  in read_adapter_irq_config()
208 				cur->offset, cur->offset + cur->range - 1,  in read_adapter_irq_config()
209 				cur->range);  in read_adapter_irq_config()
211 	adapter->guest->irq_nranges = nranges;  in read_adapter_irq_config()
212 	spin_lock_init(&adapter->guest->irq_alloc_lock);  in read_adapter_irq_config()
216 	for (i--; i >= 0; i--) {  in read_adapter_irq_config()
217 		cur = &adapter->guest->irq_avail[i];  in read_adapter_irq_config()
218 		bitmap_free(cur->bitmap);  in read_adapter_irq_config()
220 	kfree(adapter->guest->irq_avail);  in read_adapter_irq_config()
221 	adapter->guest->irq_avail = NULL;  in read_adapter_irq_config()
222 	return -ENOMEM;  in read_adapter_irq_config()
227 	return of_property_read_reg(np, 0, &adapter->guest->handle, NULL);  in cxl_of_read_adapter_handle()
241 	if (!of_property_read_u32(np, "ibm,caia-version", &val)) {  in cxl_of_read_adapter_properties()
242 		adapter->caia_major = (val & 0xFF00) >> 8;  in cxl_of_read_adapter_properties()
243 		adapter->caia_minor = val & 0xFF;  in cxl_of_read_adapter_properties()
246 	if (!of_property_read_u32(np, "ibm,psl-revision", &val))  in cxl_of_read_adapter_properties()
247 		adapter->psl_rev = val;  in cxl_of_read_adapter_properties()
250 		adapter->guest->status = kasprintf(GFP_KERNEL, "%s", p);  in cxl_of_read_adapter_properties()
251 		if (adapter->guest->status == NULL)  in cxl_of_read_adapter_properties()
252 			return -ENOMEM;  in cxl_of_read_adapter_properties()
255 	if (!of_property_read_u32(np, "vendor-id", &val))  in cxl_of_read_adapter_properties()
256 		adapter->guest->vendor = val;  in cxl_of_read_adapter_properties()
258 	if (!of_property_read_u32(np, "device-id", &val))  in cxl_of_read_adapter_properties()
259 		adapter->guest->device = val;  in cxl_of_read_adapter_properties()
261 	if (!of_property_read_u32(np, "subsystem-vendor-id", &val))  in cxl_of_read_adapter_properties()
262 		adapter->guest->subsystem_vendor = val;  in cxl_of_read_adapter_properties()
264 	if (!of_property_read_u32(np, "subsystem-id", &val))  in cxl_of_read_adapter_properties()
265 		adapter->guest->subsystem = val;  in cxl_of_read_adapter_properties()
278 	adapter = dev_get_drvdata(&pdev->dev);  in cxl_of_remove()
279 	for (afu = 0; afu < adapter->slices; afu++)  in cxl_of_remove()
280 		cxl_guest_remove_afu(adapter->afu[afu]);  in cxl_of_remove()
298 …dev_err_once(&pdev->dev, "DEPRECATION: cxl is deprecated and will be removed in a future kernel re…  in cxl_of_probe()
302 	np = pdev->dev.of_node;  in cxl_of_probe()
304 		return -ENODEV;  in cxl_of_probe()
309 		dev_err(&pdev->dev, "guest_init_adapter failed: %li\n", PTR_ERR(adapter));  in cxl_of_probe()
316 			dev_err(&pdev->dev, "AFU %i failed to initialise: %i\n",  in cxl_of_probe()
324 		dev_info(&pdev->dev, "No active AFU");  in cxl_of_probe()
325 		adapter->slices = 0;  in cxl_of_probe()
332 	{ .compatible = "ibm,coherent-platform-facility",},