1 files changed, 64 insertions, 70 deletions

diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 3502b9101e6b..39fadc6e1492 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -32,13 +32,6 @@
 #include <asm/machdep.h>
 #include <asm/ppc-pci.h>
 
-#ifdef DEBUG
-#include <asm/udbg.h>
-#define DBG(fmt...) printk(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
 unsigned long pci_probe_only = 1;
 
 /* pci_io_base -- the base address from which io bars are offsets.
@@ -102,7 +95,7 @@ static void pci_parse_of_addrs(struct device_node *node, struct pci_dev *dev)
         addrs = of_get_property(node, "assigned-addresses", &proplen);
         if (!addrs)
                 return;
-        DBG("    parse addresses (%d bytes) @ %p\n", proplen, addrs);
+        pr_debug("    parse addresses (%d bytes) @ %p\n", proplen, addrs);
         for (; proplen >= 20; proplen -= 20, addrs += 5) {
                 flags = pci_parse_of_flags(addrs[0]);
                 if (!flags)
@@ -112,8 +105,9 @@ static void pci_parse_of_addrs(struct device_node *node, struct pci_dev *dev)
                 if (!size)
                         continue;
                 i = addrs[0] & 0xff;
-                DBG("  base: %llx, size: %llx, i: %x\n",
-                    (unsigned long long)base, (unsigned long long)size, i);
+                pr_debug("  base: %llx, size: %llx, i: %x\n",
+                         (unsigned long long)base,
+                         (unsigned long long)size, i);
 
                 if (PCI_BASE_ADDRESS_0 <= i && i <= PCI_BASE_ADDRESS_5) {
                         res = &dev->resource[(i - PCI_BASE_ADDRESS_0) >> 2];
@@ -144,7 +138,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
         if (type == NULL)
                 type = "";
 
-        DBG("    create device, devfn: %x, type: %s\n", devfn, type);
+        pr_debug("    create device, devfn: %x, type: %s\n", devfn, type);
 
         dev->bus = bus;
         dev->sysdata = node;
@@ -165,8 +159,8 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
         dev->class = get_int_prop(node, "class-code", 0);
         dev->revision = get_int_prop(node, "revision-id", 0);
 
-        DBG("    class: 0x%x\n", dev->class);
-        DBG("    revision: 0x%x\n", dev->revision);
+        pr_debug("    class: 0x%x\n", dev->class);
+        pr_debug("    revision: 0x%x\n", dev->revision);
 
         dev->current_state = 4;         /* unknown power state */
         dev->error_state = pci_channel_io_normal;
@@ -187,7 +181,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
 
         pci_parse_of_addrs(node, dev);
 
-        DBG("    adding to system ...\n");
+        pr_debug("    adding to system ...\n");
 
         pci_device_add(dev, bus);
 
@@ -195,19 +189,20 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
 }
 EXPORT_SYMBOL(of_create_pci_dev);
 
-void __devinit of_scan_bus(struct device_node *node,
-                           struct pci_bus *bus)
+static void __devinit __of_scan_bus(struct device_node *node,
+                                    struct pci_bus *bus, int rescan_existing)
 {
         struct device_node *child;
         const u32 *reg;
         int reglen, devfn;
         struct pci_dev *dev;
 
-        DBG("of_scan_bus(%s) bus no %d... \n", node->full_name, bus->number);
+        pr_debug("of_scan_bus(%s) bus no %d... \n",
+                 node->full_name, bus->number);
 
         /* Scan direct children */
         for_each_child_of_node(node, child) {
-                DBG("  * %s\n", child->full_name);
+                pr_debug("  * %s\n", child->full_name);
                 reg = of_get_property(child, "reg", &reglen);
                 if (reg == NULL || reglen < 20)
                         continue;
@@ -217,11 +212,15 @@ void __devinit of_scan_bus(struct device_node *node,
                 dev = of_create_pci_dev(child, bus, devfn);
                 if (!dev)
                         continue;
-                DBG("    dev header type: %x\n", dev->hdr_type);
+                pr_debug("    dev header type: %x\n", dev->hdr_type);
         }
 
-        /* Ally all fixups */
-        pcibios_fixup_of_probed_bus(bus);
+        /* Apply all fixups necessary. We don't fixup the bus "self"
+         * for an existing bridge that is being rescanned
+         */
+        if (!rescan_existing)
+                pcibios_setup_bus_self(bus);
+        pcibios_setup_bus_devices(bus);
 
         /* Now scan child busses */
         list_for_each_entry(dev, &bus->devices, bus_list) {
@@ -233,7 +232,20 @@ void __devinit of_scan_bus(struct device_node *node,
                 }
         }
 }
-EXPORT_SYMBOL(of_scan_bus);
+
+void __devinit of_scan_bus(struct device_node *node,
+                           struct pci_bus *bus)
+{
+        __of_scan_bus(node, bus, 0);
+}
+EXPORT_SYMBOL_GPL(of_scan_bus);
+
+void __devinit of_rescan_bus(struct device_node *node,
+                             struct pci_bus *bus)
+{
+        __of_scan_bus(node, bus, 1);
+}
+EXPORT_SYMBOL_GPL(of_rescan_bus);
 
 void __devinit of_scan_pci_bridge(struct device_node *node,
                                   struct pci_dev *dev)
@@ -245,7 +257,7 @@ void __devinit of_scan_pci_bridge(struct device_node *node,
         unsigned int flags;
         u64 size;
 
-        DBG("of_scan_pci_bridge(%s)\n", node->full_name);
+        pr_debug("of_scan_pci_bridge(%s)\n", node->full_name);
 
         /* parse bus-range property */
         busrange = of_get_property(node, "bus-range", &len);
@@ -309,12 +321,12 @@ void __devinit of_scan_pci_bridge(struct device_node *node,
         }
         sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus),
                 bus->number);
-        DBG("    bus name: %s\n", bus->name);
+        pr_debug("    bus name: %s\n", bus->name);
 
         mode = PCI_PROBE_NORMAL;
         if (ppc_md.pci_probe_mode)
                 mode = ppc_md.pci_probe_mode(bus);
-        DBG("    probe mode: %d\n", mode);
+        pr_debug("    probe mode: %d\n", mode);
 
         if (mode == PCI_PROBE_DEVTREE)
                 of_scan_bus(node, bus);
@@ -327,9 +339,10 @@ void __devinit scan_phb(struct pci_controller *hose)
 {
         struct pci_bus *bus;
         struct device_node *node = hose->dn;
-        int i, mode;
+        int mode;
 
-        DBG("PCI: Scanning PHB %s\n", node ? node->full_name : "<NO NAME>");
+        pr_debug("PCI: Scanning PHB %s\n",
+                 node ? node->full_name : "<NO NAME>");
 
         /* Create an empty bus for the toplevel */
         bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, node);
@@ -345,26 +358,13 @@ void __devinit scan_phb(struct pci_controller *hose)
         pcibios_map_io_space(bus);
 
         /* Wire up PHB bus resources */
-        DBG("PCI: PHB IO resource    = %016lx-%016lx [%lx]\n",
-            hose->io_resource.start, hose->io_resource.end,
-            hose->io_resource.flags);
-        bus->resource[0] = &hose->io_resource;
-        for (i = 0; i < 3; ++i) {
-                DBG("PCI: PHB MEM resource %d = %016lx-%016lx [%lx]\n", i,
-                    hose->mem_resources[i].start,
-                    hose->mem_resources[i].end,
-                    hose->mem_resources[i].flags);
-                bus->resource[i+1] = &hose->mem_resources[i];
-        }
-        DBG("PCI: PHB MEM offset     = %016lx\n", hose->pci_mem_offset);
-        DBG("PCI: PHB IO  offset     = %08lx\n",
-            (unsigned long)hose->io_base_virt - _IO_BASE);
+        pcibios_setup_phb_resources(hose);
 
         /* Get probe mode and perform scan */
         mode = PCI_PROBE_NORMAL;
         if (node && ppc_md.pci_probe_mode)
                 mode = ppc_md.pci_probe_mode(bus);
-        DBG("    probe mode: %d\n", mode);
+        pr_debug("    probe mode: %d\n", mode);
         if (mode == PCI_PROBE_DEVTREE) {
                 bus->subordinate = hose->last_busno;
                 of_scan_bus(node, bus);
@@ -380,7 +380,7 @@ static int __init pcibios_init(void)
 
         printk(KERN_INFO "PCI: Probing PCI hardware\n");
 
-        /* For now, override phys_mem_access_prot. If we need it,
+        /* For now, override phys_mem_access_prot. If we need it,g
          * later, we may move that initialization to each ppc_md
          */
         ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot;
@@ -388,6 +388,11 @@ static int __init pcibios_init(void)
         if (pci_probe_only)
                 ppc_pci_flags |= PPC_PCI_PROBE_ONLY;
 
+        /* On ppc64, we always enable PCI domains and we keep domain 0
+         * backward compatible in /proc for video cards
+         */
+        ppc_pci_flags |= PPC_PCI_ENABLE_PROC_DOMAINS | PPC_PCI_COMPAT_DOMAIN_0;
+
         /* Scan all of the recorded PCI controllers.  */
         list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
                 scan_phb(hose);
@@ -422,8 +427,8 @@ int pcibios_unmap_io_space(struct pci_bus *bus)
         if (bus->self) {
                 struct resource *res = bus->resource[0];
 
-                DBG("IO unmapping for PCI-PCI bridge %s\n",
-                    pci_name(bus->self));
+                pr_debug("IO unmapping for PCI-PCI bridge %s\n",
+                         pci_name(bus->self));
 
                 __flush_hash_table_range(&init_mm, res->start + _IO_BASE,
                                          res->end + _IO_BASE + 1);
@@ -437,8 +442,8 @@ int pcibios_unmap_io_space(struct pci_bus *bus)
         if (hose->io_base_alloc == 0)
                 return 0;
 
-        DBG("IO unmapping for PHB %s\n", hose->dn->full_name);
-        DBG("  alloc=0x%p\n", hose->io_base_alloc);
+        pr_debug("IO unmapping for PHB %s\n", hose->dn->full_name);
+        pr_debug("  alloc=0x%p\n", hose->io_base_alloc);
 
         /* This is a PHB, we fully unmap the IO area */
         vunmap(hose->io_base_alloc);
@@ -463,11 +468,11 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
          * thus HPTEs will be faulted in when needed
          */
         if (bus->self) {
-                DBG("IO mapping for PCI-PCI bridge %s\n",
-                    pci_name(bus->self));
-                DBG("  virt=0x%016lx...0x%016lx\n",
-                    bus->resource[0]->start + _IO_BASE,
-                    bus->resource[0]->end + _IO_BASE);
+                pr_debug("IO mapping for PCI-PCI bridge %s\n",
+                         pci_name(bus->self));
+                pr_debug("  virt=0x%016lx...0x%016lx\n",
+                         bus->resource[0]->start + _IO_BASE,
+                         bus->resource[0]->end + _IO_BASE);
                 return 0;
         }
 
@@ -496,11 +501,11 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
         hose->io_base_virt = (void __iomem *)(area->addr +
                                               hose->io_base_phys - phys_page);
 
-        DBG("IO mapping for PHB %s\n", hose->dn->full_name);
-        DBG("  phys=0x%016lx, virt=0x%p (alloc=0x%p)\n",
-            hose->io_base_phys, hose->io_base_virt, hose->io_base_alloc);
-        DBG("  size=0x%016lx (alloc=0x%016lx)\n",
-            hose->pci_io_size, size_page);
+        pr_debug("IO mapping for PHB %s\n", hose->dn->full_name);
+        pr_debug("  phys=0x%016lx, virt=0x%p (alloc=0x%p)\n",
+                 hose->io_base_phys, hose->io_base_virt, hose->io_base_alloc);
+        pr_debug("  size=0x%016lx (alloc=0x%016lx)\n",
+                 hose->pci_io_size, size_page);
 
         /* Establish the mapping */
         if (__ioremap_at(phys_page, area->addr, size_page,
@@ -512,24 +517,13 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
         hose->io_resource.start += io_virt_offset;
         hose->io_resource.end += io_virt_offset;
 
-        DBG("  hose->io_resource=0x%016lx...0x%016lx\n",
-            hose->io_resource.start, hose->io_resource.end);
+        pr_debug("  hose->io_resource=0x%016lx...0x%016lx\n",
+                 hose->io_resource.start, hose->io_resource.end);
 
         return 0;
 }
 EXPORT_SYMBOL_GPL(pcibios_map_io_space);
 
-void __devinit pcibios_do_bus_setup(struct pci_bus *bus)
-{
-        struct pci_dev *dev;
-
-        if (ppc_md.pci_dma_bus_setup)
-                ppc_md.pci_dma_bus_setup(bus);
-
-        list_for_each_entry(dev, &bus->devices, bus_list)
-                pcibios_setup_new_device(dev);
-}
-
 unsigned long pci_address_to_pio(phys_addr_t address)
 {
         struct pci_controller *hose, *tmp;