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[POWERPC] Use ppc64 style list management for pci_controller on ppc32

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Use the ppc64 style list management and allocation functions for
pci_controllers.  This makes the pci_controller structs just a bit more
common between ppc32 & ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala
2007-06-27 13:09:43 -05:00
parent 58083dade5
commit a4c9e32827
4 changed files with 94 additions and 122 deletions
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61
arch/powerpc/kernel/pci_32.c
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@ -55,8 +55,7 @@ static u8* pci_to_OF_bus_map;
*/
int pci_assign_all_buses;
struct pci_controller* hose_head;
struct pci_controller** hose_tail = &hose_head;
LIST_HEAD(hose_list);
static int pci_bus_count;
@ -607,25 +606,6 @@ pcibios_enable_resources(struct pci_dev *dev, int mask)
return 0;
}
static int next_controller_index;
struct pci_controller * __init
pcibios_alloc_controller(struct device_node *dev)
{
struct pci_controller *hose;
hose = (struct pci_controller *)alloc_bootmem(sizeof(*hose));
memset(hose, 0, sizeof(struct pci_controller));
*hose_tail = hose;
hose_tail = &hose->next;
hose->global_number = next_controller_index++;
hose->arch_data = dev;
return hose;
}
#ifdef CONFIG_PPC_OF
/*
* Functions below are used on OpenFirmware machines.
@ -671,7 +651,7 @@ void
pcibios_make_OF_bus_map(void)
{
int i;
struct pci_controller* hose;
struct pci_controller *hose, *tmp;
struct property *map_prop;
struct device_node *dn;
@ -688,7 +668,7 @@ pcibios_make_OF_bus_map(void)
pci_to_OF_bus_map[i] = 0xff;
/* For each hose, we begin searching bridges */
for(hose=hose_head; hose; hose=hose->next) {
list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
struct device_node* node;
node = (struct device_node *)hose->arch_data;
if (!node)
@ -819,27 +799,6 @@ pci_device_to_OF_node(struct pci_dev *dev)
}
EXPORT_SYMBOL(pci_device_to_OF_node);
/* This routine is meant to be used early during boot, when the
* PCI bus numbers have not yet been assigned, and you need to
* issue PCI config cycles to an OF device.
* It could also be used to "fix" RTAS config cycles if you want
* to set pci_assign_all_buses to 1 and still use RTAS for PCI
* config cycles.
*/
struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node)
{
if (!have_of)
return NULL;
while(node) {
struct pci_controller* hose;
for (hose=hose_head;hose;hose=hose->next)
if (hose->arch_data == node)
return hose;
node=node->parent;
}
return NULL;
}
static int
find_OF_pci_device_filter(struct device_node* node, void* data)
{
@ -1248,14 +1207,14 @@ pcibios_fixup_p2p_bridges(void)
static int __init
pcibios_init(void)
{
struct pci_controller *hose;
struct pci_controller *hose, *tmp;
struct pci_bus *bus;
int next_busno;
int next_busno = 0;
printk(KERN_INFO "PCI: Probing PCI hardware\n");
/* Scan all of the recorded PCI controllers. */
for (next_busno = 0, hose = hose_head; hose; hose = hose->next) {
list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
if (pci_assign_all_buses)
hose->first_busno = next_busno;
hose->last_busno = 0xff;
@ -1410,9 +1369,9 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
static struct pci_controller*
pci_bus_to_hose(int bus)
{
struct pci_controller* hose = hose_head;
struct pci_controller *hose, *tmp;
for (; hose; hose = hose->next)
list_for_each_entry_safe(hose, tmp, &hose_list, list_node)
if (bus >= hose->first_busno && bus <= hose->last_busno)
return hose;
return NULL;
@ -1462,9 +1421,9 @@ long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn)
unsigned long pci_address_to_pio(phys_addr_t address)
{
struct pci_controller* hose = hose_head;
struct pci_controller *hose, *tmp;
for (; hose; hose = hose->next) {
list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
unsigned int size = hose->io_resource.end -
hose->io_resource.start + 1;
if (address >= hose->io_base_phys &&