lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] x86/x86_64: pcibus_to_node

Browse Source 
Define pcibus_to_node to be able to figure out which NUMA node contains a
given PCI device.  This defines pcibus_to_node(bus) in
include/linux/topology.h and adjusts the macros for i386 and x86_64 that
already provided a way to determine the cpumask of a pci device.

x86_64 was changed to not build an array of cpumasks anymore.  Instead an
array of nodes is build which can be used to generate the cpumask via
node_to_cpumask.

Signed-off-by: Christoph Lameter <christoph@lameter.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Lameter
2005-06-23 00:08:18 -07:00
committed by Linus Torvalds
parent e164f5573b
commit 8c5a09082f
5 changed files with 17 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
include/asm-generic/topology.h
View File

@@ -41,8 +41,15 @@
#ifndef node_to_first_cpu
#define node_to_first_cpu(node) (0)
#endif
#ifndef pcibus_to_node
#define pcibus_to_node(node) (-1)
#endif
#ifndef pcibus_to_cpumask
#define pcibus_to_cpumask(bus) (cpu_online_map)
#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
CPU_MASK_ALL : \
node_to_cpumask(pcibus_to_node(bus)) \
)
#endif
#endif /* _ASM_GENERIC_TOPOLOGY_H */