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Diffstat (limited to 'arch/powerpc/kernel/pci_64.c')
-rw-r--r--arch/powerpc/kernel/pci_64.c101
1 files changed, 41 insertions, 60 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 4c4449be81ce..efc0b5559ee0 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -13,7 +13,6 @@
#undef DEBUG
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/string.h>
@@ -42,14 +41,6 @@
unsigned long pci_probe_only = 1;
int pci_assign_all_buses = 0;
-/*
- * legal IO pages under MAX_ISA_PORT. This is to ensure we don't touch
- * devices we don't have access to.
- */
-unsigned long io_page_mask;
-
-EXPORT_SYMBOL(io_page_mask);
-
#ifdef CONFIG_PPC_MULTIPLATFORM
static void fixup_resource(struct resource *res, struct pci_dev *dev);
static void do_bus_setup(struct pci_bus *bus);
@@ -146,11 +137,11 @@ EXPORT_SYMBOL(pcibios_bus_to_resource);
* which might have be mirrored at 0x0100-0x03ff..
*/
void pcibios_align_resource(void *data, struct resource *res,
- unsigned long size, unsigned long align)
+ resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
struct pci_controller *hose = pci_bus_to_host(dev->bus);
- unsigned long start = res->start;
+ resource_size_t start = res->start;
unsigned long alignto;
if (res->flags & IORESOURCE_IO) {
@@ -235,8 +226,10 @@ struct pci_controller * pcibios_alloc_controller(struct device_node *dev)
pci_setup_pci_controller(phb);
phb->arch_data = dev;
phb->is_dynamic = mem_init_done;
- if (dev)
+ if (dev) {
+ PHB_SET_NODE(phb, of_node_to_nid(dev));
add_linux_pci_domain(dev, phb);
+ }
return phb;
}
@@ -396,7 +389,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
dev->current_state = 4; /* unknown power state */
- if (!strcmp(type, "pci")) {
+ if (!strcmp(type, "pci") || !strcmp(type, "pciex")) {
/* a PCI-PCI bridge */
dev->hdr_type = PCI_HEADER_TYPE_BRIDGE;
dev->rom_base_reg = PCI_ROM_ADDRESS1;
@@ -405,12 +398,8 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
} else {
dev->hdr_type = PCI_HEADER_TYPE_NORMAL;
dev->rom_base_reg = PCI_ROM_ADDRESS;
+ /* Maybe do a default OF mapping here */
dev->irq = NO_IRQ;
- if (node->n_intrs > 0) {
- dev->irq = node->intrs[0].line;
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
- dev->irq);
- }
}
pci_parse_of_addrs(node, dev);
@@ -605,7 +594,7 @@ static int __init pcibios_init(void)
iSeries_pcibios_init();
#endif
- printk("PCI: Probing PCI hardware\n");
+ printk(KERN_DEBUG "PCI: Probing PCI hardware\n");
/* Scan all of the recorded PCI controllers. */
list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
@@ -630,14 +619,14 @@ static int __init pcibios_init(void)
/* Cache the location of the ISA bridge (if we have one) */
ppc64_isabridge_dev = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL);
if (ppc64_isabridge_dev != NULL)
- printk("ISA bridge at %s\n", pci_name(ppc64_isabridge_dev));
+ printk(KERN_DEBUG "ISA bridge at %s\n", pci_name(ppc64_isabridge_dev));
#ifdef CONFIG_PPC_MULTIPLATFORM
/* map in PCI I/O space */
phbs_remap_io();
#endif
- printk("PCI: Probing PCI hardware done\n");
+ printk(KERN_DEBUG "PCI: Probing PCI hardware done\n");
return 0;
}
@@ -804,7 +793,7 @@ static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp,
else
prot |= _PAGE_GUARDED;
- printk("PCI map for %s:%lx, prot: %lx\n", pci_name(dev), rp->start,
+ printk(KERN_DEBUG "PCI map for %s:%lx, prot: %lx\n", pci_name(dev), rp->start,
prot);
return __pgprot(prot);
@@ -883,7 +872,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
return -EINVAL;
vma->vm_pgoff = offset >> PAGE_SHIFT;
- vma->vm_flags |= VM_SHM | VM_LOCKED | VM_IO;
vma->vm_page_prot = __pci_mmap_set_pgprot(dev, rp,
vma->vm_page_prot,
mmap_state, write_combine);
@@ -894,8 +882,8 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
return ret;
}
-#ifdef CONFIG_PPC_MULTIPLATFORM
-static ssize_t pci_show_devspec(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t pci_show_devspec(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct pci_dev *pdev;
struct device_node *np;
@@ -907,13 +895,10 @@ static ssize_t pci_show_devspec(struct device *dev, struct device_attribute *att
return sprintf(buf, "%s", np->full_name);
}
static DEVICE_ATTR(devspec, S_IRUGO, pci_show_devspec, NULL);
-#endif /* CONFIG_PPC_MULTIPLATFORM */
void pcibios_add_platform_entries(struct pci_dev *pdev)
{
-#ifdef CONFIG_PPC_MULTIPLATFORM
device_create_file(&pdev->dev, &dev_attr_devspec);
-#endif /* CONFIG_PPC_MULTIPLATFORM */
}
#ifdef CONFIG_PPC_MULTIPLATFORM
@@ -1104,8 +1089,6 @@ void __init pci_setup_phb_io(struct pci_controller *hose, int primary)
pci_process_ISA_OF_ranges(isa_dn, hose->io_base_phys,
hose->io_base_virt);
of_node_put(isa_dn);
- /* Allow all IO */
- io_page_mask = -1;
}
}
@@ -1212,7 +1195,7 @@ int remap_bus_range(struct pci_bus *bus)
return 1;
if (start_phys == 0)
return 1;
- printk("mapping IO %lx -> %lx, size: %lx\n", start_phys, start_virt, size);
+ printk(KERN_DEBUG "mapping IO %lx -> %lx, size: %lx\n", start_phys, start_virt, size);
if (__ioremap_explicit(start_phys, start_virt, size,
_PAGE_NO_CACHE | _PAGE_GUARDED))
return 1;
@@ -1232,27 +1215,13 @@ static void phbs_remap_io(void)
static void __devinit fixup_resource(struct resource *res, struct pci_dev *dev)
{
struct pci_controller *hose = pci_bus_to_host(dev->bus);
- unsigned long start, end, mask, offset;
+ unsigned long offset;
if (res->flags & IORESOURCE_IO) {
offset = (unsigned long)hose->io_base_virt - pci_io_base;
- start = res->start += offset;
- end = res->end += offset;
-
- /* Need to allow IO access to pages that are in the
- ISA range */
- if (start < MAX_ISA_PORT) {
- if (end > MAX_ISA_PORT)
- end = MAX_ISA_PORT;
-
- start >>= PAGE_SHIFT;
- end >>= PAGE_SHIFT;
-
- /* get the range of pages for the map */
- mask = ((1 << (end+1)) - 1) ^ ((1 << start) - 1);
- io_page_mask |= mask;
- }
+ res->start += offset;
+ res->end += offset;
} else if (res->flags & IORESOURCE_MEM) {
res->start += hose->pci_mem_offset;
res->end += hose->pci_mem_offset;
@@ -1315,23 +1284,26 @@ EXPORT_SYMBOL(pcibios_fixup_bus);
*/
int pci_read_irq_line(struct pci_dev *pci_dev)
{
- u8 intpin;
- struct device_node *node;
-
- pci_read_config_byte(pci_dev, PCI_INTERRUPT_PIN, &intpin);
- if (intpin == 0)
- return 0;
+ struct of_irq oirq;
+ unsigned int virq;
- node = pci_device_to_OF_node(pci_dev);
- if (node == NULL)
- return -1;
+ DBG("Try to map irq for %s...\n", pci_name(pci_dev));
- if (node->n_intrs == 0)
+ if (of_irq_map_pci(pci_dev, &oirq)) {
+ DBG(" -> failed !\n");
return -1;
+ }
- pci_dev->irq = node->intrs[0].line;
+ DBG(" -> got one, spec %d cells (0x%08x...) on %s\n",
+ oirq.size, oirq.specifier[0], oirq.controller->full_name);
- pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, pci_dev->irq);
+ virq = irq_create_of_mapping(oirq.controller, oirq.specifier, oirq.size);
+ if(virq == NO_IRQ) {
+ DBG(" -> failed to map !\n");
+ return -1;
+ }
+ pci_dev->irq = virq;
+ pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, virq);
return 0;
}
@@ -1442,3 +1414,12 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
return -EOPNOTSUPP;
}
+
+#ifdef CONFIG_NUMA
+int pcibus_to_node(struct pci_bus *bus)
+{
+ struct pci_controller *phb = pci_bus_to_host(bus);
+ return phb->node;
+}
+EXPORT_SYMBOL(pcibus_to_node);
+#endif
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