patch-2.4.20 linux-2.4.20/arch/alpha/kernel/pci.c

• Lines: 61
• Date: Thu Nov 28 15:53:08 2002
• Orig file: linux-2.4.19/arch/alpha/kernel/pci.c
• Orig date: Fri Nov 2 17:39:20 2001

diff -urN linux-2.4.19/arch/alpha/kernel/pci.c linux-2.4.20/arch/alpha/kernel/pci.c
@@ -128,7 +128,8 @@
 #define GB			(1024*MB)
 
 void
-pcibios_align_resource(void *data, struct resource *res, unsigned long size)
+pcibios_align_resource(void *data, struct resource *res,
+		       unsigned long size, unsigned long align)
 {
 	struct pci_dev *dev = data;
 	struct pci_controller *hose = dev->sysdata;
@@ -168,7 +169,7 @@
 		 */
 
 		/* Align to multiple of size of minimum base.  */
-		alignto = MAX(0x1000, size);
+		alignto = MAX(0x1000, align);
 		start = ALIGN(start, alignto);
 		if (hose->sparse_mem_base && size <= 7 * 16*MB) {
 			if (((start / (16*MB)) & 0x7) == 0) {
@@ -245,25 +246,6 @@
 		/* Root bus */
 		bus->resource[0] = hose->io_space;
 		bus->resource[1] = hose->mem_space;
-	} else {
-		/* This is a bridge. Do not care how it's initialized,
-		   just link its resources to the bus ones */
-		int i;
-
-		for(i=0; i<3; i++) {
-			bus->resource[i] =
-				&dev->resource[PCI_BRIDGE_RESOURCES+i];
-			bus->resource[i]->name = bus->name;
-		}
-		bus->resource[0]->flags |= pci_bridge_check_io(dev);
-		bus->resource[1]->flags |= IORESOURCE_MEM;
-		/* For now, propogate hose limits to the bus;
-		   we'll adjust them later. */
-		bus->resource[0]->end = hose->io_space->end;
-		bus->resource[1]->end = hose->mem_space->end;
-		/* Turn off downstream PF memory address range by default */
-		bus->resource[2]->start = 1024*1024;
-		bus->resource[2]->end = bus->resource[2]->start - 1;
 	}
 
 	for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
@@ -348,10 +330,14 @@
 	ranges->io_end -= hose->io_space->start;
 	ranges->mem_start -= hose->mem_space->start;
 	ranges->mem_end -= hose->mem_space->start;
+/* FIXME: On older alphas we could use dense memory space
+	  to access prefetchable resources. */
+	ranges->prefetch_start -= hose->mem_space->start;
+	ranges->prefetch_end -= hose->mem_space->start;
 }
 
 int
-pcibios_enable_device(struct pci_dev *dev)
+pcibios_enable_device(struct pci_dev *dev, int mask)
 {
 	/* Nothing to do, since we enable all devices at startup.  */
 	return 0;