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ppc64: Add a `primary' argument to pci_process_bridge_OF_ranges

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... for consistency with ppc32 and to make the powermac merge easier.
Also make it use just a single resource in the host bridge for multiple
consecutive elements of the ranges property.

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras 2005-10-22 15:03:21 +10:00
parent a5b518ed31
commit f7abbc190b
4 changed files with 34 additions and 12 deletions
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2
arch/ppc64/kernel/maple_pci.c
View File

@ -359,7 +359,7 @@ static int __init add_bridge(struct device_node *dev)
/* Interpret the "ranges" property */
/* This also maps the I/O region and sets isa_io/mem_base */
pci_process_bridge_OF_ranges(hose, dev);
pci_process_bridge_OF_ranges(hose, dev, primary);
pci_setup_phb_io(hose, primary);
/* Fixup "bus-range" OF property */

38
arch/ppc64/kernel/pci.c
View File

@ -880,9 +880,9 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node,
}
void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
struct device_node *dev)
struct device_node *dev, int prim)
{
unsigned int *ranges;
unsigned int *ranges, pci_space;
unsigned long size;
int rlen = 0;
int memno = 0;
@ -905,16 +905,39 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
while ((rlen -= np * sizeof(unsigned int)) >= 0) {
res = NULL;
pci_addr = (unsigned long)ranges[1] << 32 | ranges[2];
pci_space = ranges[0];
pci_addr = ((unsigned long)ranges[1] << 32) | ranges[2];
cpu_phys_addr = ranges[3];
if (na == 2)
cpu_phys_addr = cpu_phys_addr << 32 | ranges[4];
if (na >= 2)
cpu_phys_addr = (cpu_phys_addr << 32) | ranges[4];
size = (unsigned long)ranges[na+3] << 32 | ranges[na+4];
size = ((unsigned long)ranges[na+3] << 32) | ranges[na+4];
ranges += np;
if (size == 0)
continue;
switch ((ranges[0] >> 24) & 0x3) {
/* Now consume following elements while they are contiguous */
while (rlen >= np * sizeof(unsigned int)) {
unsigned long addr, phys;
if (ranges[0] != pci_space)
break;
addr = ((unsigned long)ranges[1] << 32) | ranges[2];
phys = ranges[3];
if (na >= 2)
phys = (phys << 32) | ranges[4];
if (addr != pci_addr + size ||
phys != cpu_phys_addr + size)
break;
size += ((unsigned long)ranges[na+3] << 32)
| ranges[na+4];
ranges += np;
rlen -= np * sizeof(unsigned int);
}
switch ((pci_space >> 24) & 0x3) {
case 1: /* I/O space */
hose->io_base_phys = cpu_phys_addr;
hose->pci_io_size = size;
@ -948,7 +971,6 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
res->sibling = NULL;
res->child = NULL;
}
ranges += np;
}
}

4
arch/ppc64/kernel/rtas_pci.c
View File

@ -400,7 +400,7 @@ unsigned long __init find_and_init_phbs(void)
if (!phb)
continue;
pci_process_bridge_OF_ranges(phb, node);
pci_process_bridge_OF_ranges(phb, node, 0);
pci_setup_phb_io(phb, index == 0);
#ifdef CONFIG_PPC_PSERIES
if (ppc64_interrupt_controller == IC_OPEN_PIC && pSeries_mpic) {
@ -450,7 +450,7 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
if (!phb)
return NULL;
pci_process_bridge_OF_ranges(phb, dn);
pci_process_bridge_OF_ranges(phb, dn, primary);
pci_setup_phb_io_dynamic(phb, primary);
of_node_put(root);

2
include/asm-ppc64/pci-bridge.h
View File

@ -123,7 +123,7 @@ static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
}
extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
struct device_node *dev);
struct device_node *dev, int primary);
extern int pcibios_remove_root_bus(struct pci_controller *phb);