From bc606f3c917aa453fca62b76c8e9998b4171f4fa Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 1 Mar 2007 11:20:37 -0800 Subject: [PATCH] [SPARC64]: Minor cleanups to schizo pci controller driver. Signed-off-by: David S. Miller --- arch/sparc64/kernel/pci_schizo.c | 110 +++++++++---------------------- 1 file changed, 31 insertions(+), 79 deletions(-) diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c index 48dea52ac522..332cfd9736b7 100644 --- a/arch/sparc64/kernel/pci_schizo.c +++ b/arch/sparc64/kernel/pci_schizo.c @@ -1229,21 +1229,8 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm) pci_config_write8(addr, 64); } -static void pbm_scan_bus(struct pci_controller_info *p, - struct pci_pbm_info *pbm) -{ - pbm->pci_bus = pci_scan_one_pbm(pbm); -} - -static void __schizo_scan_bus(struct pci_controller_info *p, - int chip_type) +static void schizo_scan_bus(struct pci_controller_info *p) { - if (!p->pbm_B.prom_node || !p->pbm_A.prom_node) { - printk("PCI: Only one PCI bus module of controller found.\n"); - printk("PCI: Ignoring entire controller.\n"); - return; - } - pbm_config_busmastering(&p->pbm_B); p->pbm_B.is_66mhz_capable = (of_find_property(p->pbm_B.prom_node, "66mhz-capable", NULL) @@ -1252,28 +1239,19 @@ static void __schizo_scan_bus(struct pci_controller_info *p, p->pbm_A.is_66mhz_capable = (of_find_property(p->pbm_A.prom_node, "66mhz-capable", NULL) != NULL); - pbm_scan_bus(p, &p->pbm_B); - pbm_scan_bus(p, &p->pbm_A); + + p->pbm_B.pci_bus = pci_scan_one_pbm(&p->pbm_B); + p->pbm_A.pci_bus = pci_scan_one_pbm(&p->pbm_A); /* After the PCI bus scan is complete, we can register * the error interrupt handlers. */ - if (chip_type == PBM_CHIP_TYPE_TOMATILLO) + if (p->pbm_B.chip_type == PBM_CHIP_TYPE_TOMATILLO) tomatillo_register_error_handlers(p); else schizo_register_error_handlers(p); } -static void schizo_scan_bus(struct pci_controller_info *p) -{ - __schizo_scan_bus(p, PBM_CHIP_TYPE_SCHIZO); -} - -static void tomatillo_scan_bus(struct pci_controller_info *p) -{ - __schizo_scan_bus(p, PBM_CHIP_TYPE_TOMATILLO); -} - static void schizo_base_address_update(struct pci_dev *pdev, int resource) { struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; @@ -1633,7 +1611,6 @@ static void schizo_pbm_init(struct pci_controller_info *p, int chip_type) { struct linux_prom64_registers *regs; - struct property *prop; unsigned int *busrange; struct pci_pbm_info *pbm; const char *chipset_name; @@ -1667,11 +1644,9 @@ static void schizo_pbm_init(struct pci_controller_info *p, * 3) PBM PCI config space * 4) Ichip regs */ - prop = of_find_property(dp, "reg", NULL); - regs = prop->value; + regs = of_get_property(dp, "reg", NULL); is_pbm_a = ((regs[0].phys_addr & 0x00700000) == 0x00600000); - if (is_pbm_a) pbm = &p->pbm_A; else @@ -1683,14 +1658,8 @@ static void schizo_pbm_init(struct pci_controller_info *p, pbm->pci_first_slot = 1; pbm->chip_type = chip_type; - pbm->chip_version = 0; - prop = of_find_property(dp, "version#", NULL); - if (prop) - pbm->chip_version = *(int *) prop->value; - pbm->chip_revision = 0; - prop = of_find_property(dp, "module-revision#", NULL); - if (prop) - pbm->chip_revision = *(int *) prop->value; + pbm->chip_version = of_getintprop_default(dp, "version#", 0); + pbm->chip_revision = of_getintprop_default(dp, "module-version#", 0); pbm->pbm_regs = regs[0].phys_addr; pbm->controller_regs = regs[1].phys_addr - 0x10000UL; @@ -1701,40 +1670,31 @@ static void schizo_pbm_init(struct pci_controller_info *p, pbm->name = dp->full_name; printk("%s: %s PCI Bus Module ver[%x:%x]\n", - pbm->name, - (chip_type == PBM_CHIP_TYPE_TOMATILLO ? - "TOMATILLO" : "SCHIZO"), + pbm->name, chipset_name, pbm->chip_version, pbm->chip_revision); schizo_pbm_hw_init(pbm); - prop = of_find_property(dp, "ranges", &len); - pbm->pbm_ranges = prop->value; + pbm->pbm_ranges = of_get_property(dp, "ranges", &len); pbm->num_pbm_ranges = (len / sizeof(struct linux_prom_pci_ranges)); schizo_determine_mem_io_space(pbm); pbm_register_toplevel_resources(p, pbm); - prop = of_find_property(dp, "interrupt-map", &len); - if (prop) { - pbm->pbm_intmap = prop->value; + pbm->pbm_intmap = of_get_property(dp, "interrupt-map", &len); + if (pbm->pbm_intmap) { pbm->num_pbm_intmap = (len / sizeof(struct linux_prom_pci_intmap)); - - prop = of_find_property(dp, "interrupt-map-mask", NULL); - pbm->pbm_intmask = prop->value; - } else { - pbm->num_pbm_intmap = 0; + pbm->pbm_intmask = + of_get_property(dp, "interrupt-map-mask", NULL); } - prop = of_find_property(dp, "ino-bitmap", NULL); - ino_bitmap = prop->value; + ino_bitmap = of_get_property(dp, "ino-bitmap", NULL); pbm->ino_bitmap = (((u64)ino_bitmap[1] << 32UL) | ((u64)ino_bitmap[0] << 0UL)); - prop = of_find_property(dp, "bus-range", NULL); - busrange = prop->value; + busrange = of_get_property(dp, "bus-range", NULL); pbm->pci_first_busno = busrange[0]; pbm->pci_last_busno = busrange[1]; @@ -1756,14 +1716,9 @@ static void __schizo_init(struct device_node *dp, char *model_name, int chip_typ { struct pci_controller_info *p; struct pci_iommu *iommu; - struct property *prop; - int is_pbm_a; u32 portid; - portid = 0xff; - prop = of_find_property(dp, "portid", NULL); - if (prop) - portid = *(u32 *) prop->value; + portid = of_getintprop_default(dp, "portid", 0xff); for (p = pci_controller_root; p; p = p->next) { struct pci_pbm_info *pbm; @@ -1776,40 +1731,32 @@ static void __schizo_init(struct device_node *dp, char *model_name, int chip_typ &p->pbm_B); if (portid_compare(pbm->portid, portid, chip_type)) { - is_pbm_a = (p->pbm_A.prom_node == NULL); schizo_pbm_init(p, dp, portid, chip_type); return; } } p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC); - if (!p) { - prom_printf("SCHIZO: Fatal memory allocation error.\n"); - prom_halt(); - } + if (!p) + goto memfail; iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC); - if (!iommu) { - prom_printf("SCHIZO: Fatal memory allocation error.\n"); - prom_halt(); - } + if (!iommu) + goto memfail; + p->pbm_A.iommu = iommu; iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC); - if (!iommu) { - prom_printf("SCHIZO: Fatal memory allocation error.\n"); - prom_halt(); - } + if (!iommu) + goto memfail; + p->pbm_B.iommu = iommu; p->next = pci_controller_root; pci_controller_root = p; p->index = pci_num_controllers++; - p->pbms_same_domain = 0; - p->scan_bus = (chip_type == PBM_CHIP_TYPE_TOMATILLO ? - tomatillo_scan_bus : - schizo_scan_bus); + p->scan_bus = schizo_scan_bus; p->base_address_update = schizo_base_address_update; p->resource_adjust = schizo_resource_adjust; p->pci_ops = &schizo_ops; @@ -1818,6 +1765,11 @@ static void __schizo_init(struct device_node *dp, char *model_name, int chip_typ pci_memspace_mask = 0x7fffffffUL; schizo_pbm_init(p, dp, portid, chip_type); + return; + +memfail: + prom_printf("SCHIZO: Fatal memory allocation error.\n"); + prom_halt(); } void schizo_init(struct device_node *dp, char *model_name) -- 2.39.5