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[POWERPC] pcibus_to_node fixes

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of_node_to_nid returns -1 if the associativity cannot be found. This
means pcibus_to_cpumask has to be careful not to pass a negative index into
node_to_cpumask.

Since pcibus_to_node could be used a lot, and of_node_to_nid is slow (it
walks a list doing strcmps), lets also cache the node in the
pci_controller struct.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Anton Blanchard
2006-06-10 20:53:06 +10:00
committed by Paul Mackerras
parent f2b09c8189
commit 357518fa34
3 changed files with 27 additions and 8 deletions
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8
include/asm-powerpc/pci-bridge.h
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@@ -6,6 +6,7 @@
#include <asm-ppc/pci-bridge.h>
#else
#include <linux/config.h>
#include <linux/pci.h>
#include <linux/list.h>
@@ -22,6 +23,7 @@
struct pci_controller {
struct pci_bus *bus;
char is_dynamic;
int node;
void *arch_data;
struct list_head list_node;
@@ -165,6 +167,12 @@ static inline unsigned long pci_address_to_pio(phys_addr_t address)
#define PCI_PROBE_NORMAL 0 /* Do normal PCI probing */
#define PCI_PROBE_DEVTREE 1 /* Instantiate from device tree */
#ifdef CONFIG_NUMA
#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = (NODE))
#else
#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = -1)
#endif
#endif /* CONFIG_PPC64 */
#endif /* __KERNEL__ */
#endif