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Diffstat (limited to 'arch/powerpc/kernel/pci-common.c')
-rw-r--r--arch/powerpc/kernel/pci-common.c110
1 files changed, 55 insertions, 55 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 1ec73938a00f..f36936d9fda3 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1239,69 +1239,66 @@ static int __init reparent_resources(struct resource *parent,
1239 * as well. 1239 * as well.
1240 */ 1240 */
1241 1241
1242static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) 1242void pcibios_allocate_bus_resources(struct pci_bus *bus)
1243{ 1243{
1244 struct pci_bus *bus; 1244 struct pci_bus *b;
1245 int i; 1245 int i;
1246 struct resource *res, *pr; 1246 struct resource *res, *pr;
1247 1247
1248 /* Depth-First Search on bus tree */ 1248 for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
1249 list_for_each_entry(bus, bus_list, node) { 1249 if ((res = bus->resource[i]) == NULL || !res->flags
1250 for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) { 1250 || res->start > res->end)
1251 if ((res = bus->resource[i]) == NULL || !res->flags 1251 continue;
1252 || res->start > res->end) 1252 if (bus->parent == NULL)
1253 continue; 1253 pr = (res->flags & IORESOURCE_IO) ?
1254 if (bus->parent == NULL) 1254 &ioport_resource : &iomem_resource;
1255 pr = (res->flags & IORESOURCE_IO) ? 1255 else {
1256 &ioport_resource : &iomem_resource; 1256 /* Don't bother with non-root busses when
1257 else { 1257 * re-assigning all resources. We clear the
1258 /* Don't bother with non-root busses when 1258 * resource flags as if they were colliding
1259 * re-assigning all resources. We clear the 1259 * and as such ensure proper re-allocation
1260 * resource flags as if they were colliding 1260 * later.
1261 * and as such ensure proper re-allocation 1261 */
1262 * later. 1262 if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC)
1263 goto clear_resource;
1264 pr = pci_find_parent_resource(bus->self, res);
1265 if (pr == res) {
1266 /* this happens when the generic PCI
1267 * code (wrongly) decides that this
1268 * bridge is transparent -- paulus
1263 */ 1269 */
1264 if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC) 1270 continue;
1265 goto clear_resource;
1266 pr = pci_find_parent_resource(bus->self, res);
1267 if (pr == res) {
1268 /* this happens when the generic PCI
1269 * code (wrongly) decides that this
1270 * bridge is transparent -- paulus
1271 */
1272 continue;
1273 }
1274 } 1271 }
1272 }
1275 1273
1276 DBG("PCI: %s (bus %d) bridge rsrc %d: %016llx-%016llx " 1274 DBG("PCI: %s (bus %d) bridge rsrc %d: %016llx-%016llx "
1277 "[0x%x], parent %p (%s)\n", 1275 "[0x%x], parent %p (%s)\n",
1278 bus->self ? pci_name(bus->self) : "PHB", 1276 bus->self ? pci_name(bus->self) : "PHB",
1279 bus->number, i, 1277 bus->number, i,
1280 (unsigned long long)res->start, 1278 (unsigned long long)res->start,
1281 (unsigned long long)res->end, 1279 (unsigned long long)res->end,
1282 (unsigned int)res->flags, 1280 (unsigned int)res->flags,
1283 pr, (pr && pr->name) ? pr->name : "nil"); 1281 pr, (pr && pr->name) ? pr->name : "nil");
1284 1282
1285 if (pr && !(pr->flags & IORESOURCE_UNSET)) { 1283 if (pr && !(pr->flags & IORESOURCE_UNSET)) {
1286 if (request_resource(pr, res) == 0) 1284 if (request_resource(pr, res) == 0)
1287 continue; 1285 continue;
1288 /* 1286 /*
1289 * Must be a conflict with an existing entry. 1287 * Must be a conflict with an existing entry.
1290 * Move that entry (or entries) under the 1288 * Move that entry (or entries) under the
1291 * bridge resource and try again. 1289 * bridge resource and try again.
1292 */ 1290 */
1293 if (reparent_resources(pr, res) == 0) 1291 if (reparent_resources(pr, res) == 0)
1294 continue; 1292 continue;
1295 }
1296 printk(KERN_WARNING
1297 "PCI: Cannot allocate resource region "
1298 "%d of PCI bridge %d, will remap\n",
1299 i, bus->number);
1300clear_resource:
1301 res->flags = 0;
1302 } 1293 }
1303 pcibios_allocate_bus_resources(&bus->children); 1294 printk(KERN_WARNING "PCI: Cannot allocate resource region "
1295 "%d of PCI bridge %d, will remap\n", i, bus->number);
1296clear_resource:
1297 res->flags = 0;
1304 } 1298 }
1299
1300 list_for_each_entry(b, &bus->children, node)
1301 pcibios_allocate_bus_resources(b);
1305} 1302}
1306 1303
1307static inline void __devinit alloc_resource(struct pci_dev *dev, int idx) 1304static inline void __devinit alloc_resource(struct pci_dev *dev, int idx)
@@ -1372,10 +1369,13 @@ static void __init pcibios_allocate_resources(int pass)
1372 1369
1373void __init pcibios_resource_survey(void) 1370void __init pcibios_resource_survey(void)
1374{ 1371{
1372 struct pci_bus *b;
1373
1375 /* Allocate and assign resources. If we re-assign everything, then 1374 /* Allocate and assign resources. If we re-assign everything, then
1376 * we skip the allocate phase 1375 * we skip the allocate phase
1377 */ 1376 */
1378 pcibios_allocate_bus_resources(&pci_root_buses); 1377 list_for_each_entry(b, &pci_root_buses, node)
1378 pcibios_allocate_bus_resources(b);
1379 1379
1380 if (!(ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC)) { 1380 if (!(ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC)) {
1381 pcibios_allocate_resources(0); 1381 pcibios_allocate_resources(0);