1 // SPDX-License-Identifier: GPL-2.0
2 /* psycho_common.c: Code common to PSYCHO and derivative PCI controllers.
39 	struct strbuf *strbuf = &pbm->stc;  in psycho_check_stc_error()
43 	if (!strbuf->strbuf_control)  in psycho_check_stc_error()
46 	err_base = strbuf->strbuf_err_stat;  in psycho_check_stc_error()
47 	tag_base = strbuf->strbuf_tag_diag;  in psycho_check_stc_error()
48 	line_base = strbuf->strbuf_line_diag;  in psycho_check_stc_error()
55 	 * before re-enabling the streaming buffer.  If any dirty data  in psycho_check_stc_error()
60 	control = upa_readq(strbuf->strbuf_control);  in psycho_check_stc_error()
61 	upa_writeq(control | PSYCHO_STRBUF_CTRL_DENAB, strbuf->strbuf_control);  in psycho_check_stc_error()
77 	upa_writeq(control, strbuf->strbuf_control);  in psycho_check_stc_error()
91 				       pbm->name,  in psycho_check_stc_error()
102 			       pbm->name,  in psycho_check_stc_error()
110 			       pbm->name,  in psycho_check_stc_error()
133 		unsigned long base = pbm->controller_regs;  in psycho_record_iommu_tags_and_data()
184 		printk(KERN_ERR "%s: IOMMU TAG(%d)[error(%s) wr(%d) "  in psycho_dump_iommu_tags_and_data()
186 		       pbm->name, i, type_str,  in psycho_dump_iommu_tags_and_data()
191 		printk(KERN_ERR "%s: IOMMU DATA(%d)[valid(%d) cache(%d) "  in psycho_dump_iommu_tags_and_data()
193 		       pbm->name, i,  in psycho_dump_iommu_tags_and_data()
209 	struct iommu *iommu = pbm->iommu;  in psycho_check_iommu_error()  local
212 	spin_lock_irqsave(&iommu->lock, flags);  in psycho_check_iommu_error()
213 	control = upa_readq(iommu->iommu_control);  in psycho_check_iommu_error()
218 		upa_writeq(control, iommu->iommu_control);  in psycho_check_iommu_error()
235 		printk(KERN_ERR "%s: IOMMU Error, type[%s]\n",  in psycho_check_iommu_error()
236 		       pbm->name, type_str);  in psycho_check_iommu_error()
248 	spin_unlock_irqrestore(&iommu->lock, flags);  in psycho_check_iommu_error()
260 	csr = upa_readq(pbm->pci_csr);  in psycho_pcierr_intr_other()
264 		upa_writeq(csr, pbm->pci_csr);  in psycho_pcierr_intr_other()
268 			printk(KERN_ERR "%s: PCI streaming byte hole "  in psycho_pcierr_intr_other()
269 			       "error asserted.\n", pbm->name);  in psycho_pcierr_intr_other()
271 			printk(KERN_ERR "%s: PCI SERR signal asserted.\n",  in psycho_pcierr_intr_other()
272 			       pbm->name);  in psycho_pcierr_intr_other()
275 	addr = psycho_pci_config_mkaddr(pbm, pbm->pci_first_busno,  in psycho_pcierr_intr_other()
283 		printk(KERN_ERR "%s: PCI bus error, PCI_STATUS[%04x]\n",  in psycho_pcierr_intr_other()
284 		       pbm->name, stat);  in psycho_pcierr_intr_other()
312 	afsr = upa_readq(pbm->pci_afsr);  in psycho_pcierr_intr()
313 	afar = upa_readq(pbm->pci_afar);  in psycho_pcierr_intr()
321 	upa_writeq(error_bits, pbm->pci_afsr);  in psycho_pcierr_intr()
322 	printk(KERN_ERR "%s: PCI Error, primary error type[%s]\n",  in psycho_pcierr_intr()
323 	       pbm->name,  in psycho_pcierr_intr()
333 	       pbm->name,  in psycho_pcierr_intr()
337 	printk(KERN_ERR "%s: PCI AFAR [%016llx]\n", pbm->name, afar);  in psycho_pcierr_intr()
338 	printk(KERN_ERR "%s: PCI Secondary errors [", pbm->name);  in psycho_pcierr_intr()
362 		pci_scan_for_target_abort(pbm, pbm->pci_bus);  in psycho_pcierr_intr()
365 		pci_scan_for_master_abort(pbm, pbm->pci_bus);  in psycho_pcierr_intr()
368 		pci_scan_for_parity_error(pbm, pbm->pci_bus);  in psycho_pcierr_intr()
380 		upa_writeq(0, pbm->controller_regs + PSYCHO_IOMMU_TAG + off);  in psycho_iommu_flush()
381 		upa_writeq(0, pbm->controller_regs + PSYCHO_IOMMU_DATA + off);  in psycho_iommu_flush()
405 	struct iommu *iommu = pbm->iommu;  in psycho_iommu_init()  local
409 	iommu->iommu_control  = pbm->controller_regs + PSYCHO_IOMMU_CONTROL;  in psycho_iommu_init()
410 	iommu->iommu_tsbbase  = pbm->controller_regs + PSYCHO_IOMMU_TSBBASE;  in psycho_iommu_init()
411 	iommu->iommu_flush    = pbm->controller_regs + PSYCHO_IOMMU_FLUSH;  in psycho_iommu_init()
412 	iommu->iommu_tags     = pbm->controller_regs + PSYCHO_IOMMU_TAG;  in psycho_iommu_init()
413 	iommu->write_complete_reg = (pbm->controller_regs +  in psycho_iommu_init()
416 	iommu->iommu_ctxflush = 0;  in psycho_iommu_init()
418 	control = upa_readq(iommu->iommu_control);  in psycho_iommu_init()
420 	upa_writeq(control, iommu->iommu_control);  in psycho_iommu_init()
424 	/* Leave diag mode enabled for full-flushing done in pci_iommu.c */  in psycho_iommu_init()
425 	err = iommu_table_init(iommu, tsbsize * 1024 * 8,  in psycho_iommu_init()
426 			       dvma_offset, dma_mask, pbm->numa_node);  in psycho_iommu_init()
430 	upa_writeq(__pa(iommu->page_table), iommu->iommu_tsbbase);  in psycho_iommu_init()
432 	control = upa_readq(iommu->iommu_control);  in psycho_iommu_init()
444 		return -EINVAL;  in psycho_iommu_init()
447 	upa_writeq(control, iommu->iommu_control);  in psycho_iommu_init()
456 	struct device_node *dp = op->dev.of_node;  in psycho_pbm_init_common()
458 	pbm->name = dp->full_name;  in psycho_pbm_init_common()
459 	pbm->numa_node = NUMA_NO_NODE;  in psycho_pbm_init_common()
460 	pbm->chip_type = chip_type;  in psycho_pbm_init_common()
461 	pbm->chip_version = of_getintprop_default(dp, "version#", 0);  in psycho_pbm_init_common()
462 	pbm->chip_revision = of_getintprop_default(dp, "module-revision#", 0);  in psycho_pbm_init_common()
463 	pbm->op = op;  in psycho_pbm_init_common()
464 	pbm->pci_ops = &sun4u_pci_ops;  in psycho_pbm_init_common()
465 	pbm->config_space_reg_bits = 8;  in psycho_pbm_init_common()
466 	pbm->index = pci_num_pbms++;  in psycho_pbm_init_common()
470 	printk(KERN_INFO "%s: %s PCI Bus Module ver[%x:%x]\n",  in psycho_pbm_init_common()
471 	       pbm->name, chip_name,  in psycho_pbm_init_common()
472 	       pbm->chip_version, pbm->chip_revision);  in psycho_pbm_init_common()