[PATCH] fix iomem_resource

Every 64-bit architecture changes the end of iomem_resources. Some more
gracefully than others. This patch does away with all that by making
it end at ~0UL by default.

arch/alpha/kernel/core_marvel.c

@@ -452,7 +452,6 @@ marvel_init_arch(void)
 
 	/* With multiple PCI busses, we play with I/O as physical addrs.  */
 	ioport_resource.end = ~0UL;
-	iomem_resource.end = ~0UL;
 
 	/* PCI DMA Direct Mapping is 1GB at 2GB.  */
 	__direct_map_base = 0x80000000;

arch/alpha/kernel/core_mcpcia.c

@@ -407,7 +407,6 @@ mcpcia_init_arch(void)
 {
 	/* With multiple PCI busses, we play with I/O as physical addrs.  */
 	ioport_resource.end = ~0UL;
-	iomem_resource.end = ~0UL;
 
 	/* Allocate hose 0.  That's the one that all the ISA junk hangs
 	   off of, from which we'll be registering stuff here in a bit.

arch/alpha/kernel/core_titan.c

@@ -412,7 +412,6 @@ titan_init_arch(void)
 
 	/* With multiple PCI busses, we play with I/O as physical addrs.  */
 	ioport_resource.end = ~0UL;
-	iomem_resource.end = ~0UL;
 
 	/* PCI DMA Direct Mapping is 1GB at 2GB.  */
 	__direct_map_base = 0x80000000;

arch/alpha/kernel/core_tsunami.c

@@ -390,7 +390,6 @@ tsunami_init_arch(void)
 #endif
 	/* With multiple PCI busses, we play with I/O as physical addrs.  */
 	ioport_resource.end = ~0UL;
-	iomem_resource.end = ~0UL;
 
 	/* Find how many hoses we have, and initialize them.  TSUNAMI
 	   and TYPHOON can have 2, but might only have 1 (DS10).  */

arch/alpha/kernel/core_wildfire.c

@@ -309,7 +309,6 @@ wildfire_init_arch(void)
 
 	/* With multiple PCI buses, we play with I/O as physical addrs.  */
 	ioport_resource.end = ~0UL;
-	iomem_resource.end = ~0UL;
 
 
 	/* Probe the hardware for info about configuration. */

arch/ia64/sn/io/pci_bus_cvlink.c

@@ -372,12 +372,6 @@ sn1_pci_fixup(int arg)
 #endif
 #endif
 
-	/*
-	 * Set the root start and end for Mem Resource.
-	 */
-	iomem_resource.start = 0;
-	iomem_resource.end = 0xffffffffffffffff;
-
 	/*
 	 * Initialize the device vertex in the pci_dev struct.
 	 */

arch/ia64/sn/io/sn2/pci_bus_cvlink.c

@@ -322,12 +322,6 @@ sn_pci_fixup(int arg)
 	ioport_resource.start  = 0xc000000000000000;
 	ioport_resource.end =    0xcfffffffffffffff;
 
-	/*
-	 * Set the root start and end for Mem Resource.
-	 */
-	iomem_resource.start = 0;
-	iomem_resource.end = 0xffffffffffffffff;
-
 	/*
 	 * Initialize the device vertex in the pci_dev struct.
 	 */

arch/mips64/sgi-ip27/ip27-pci.c

@@ -149,7 +149,6 @@ void __init pcibios_init(void)
 	int	i;
 
 	ioport_resource.end = ~0UL;
-	iomem_resource.end = ~0UL;
 
 	for (i=0; i<num_bridges; i++) {
 		printk("PCI: Probing PCI hardware on host bus %2d.\n", i);

arch/parisc/mm/init.c

@@ -195,11 +195,6 @@ static void __init setup_bootmem(void)
 
 #endif /* __LP64__ */
 
-#if 1
-	/* KLUGE! this really belongs in kernel/resource.c! */
-	iomem_resource.end = ~0UL;
-#endif
-
 	sysram_resource_count = npmem_ranges;
 	for (i = 0; i < sysram_resource_count; i++) {
 		struct resource *res = &sysram_resources[i];

arch/sparc64/kernel/devices.c

@@ -40,7 +40,6 @@ void __init device_scan(void)
 
 	/* FIX ME FAST... -DaveM */
 	ioport_resource.end = 0xffffffffffffffffUL;
-	iomem_resource.end = 0xffffffffffffffffUL;
 
 	prom_getstring(prom_root_node, "device_type", node_str, sizeof(node_str));
 

kernel/resource.c

@@ -21,7 +21,7 @@
 
 
 struct resource ioport_resource = { "PCI IO", 0x0000, IO_SPACE_LIMIT, IORESOURCE_IO };
-struct resource iomem_resource = { "PCI mem", 0x00000000, 0xffffffff, IORESOURCE_MEM };
+struct resource iomem_resource = { "PCI mem", 0UL, ~0UL, IORESOURCE_MEM };
 
 static rwlock_t resource_lock = RW_LOCK_UNLOCKED;