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authorAlex Chiang <achiang@hp.com>2008-04-29 15:05:29 -0700
committerTony Luck <tony.luck@intel.com>2008-04-29 15:05:29 -0700
commitfe086a7bea7ab714930bd48addba961ceeef7634 (patch)
tree9595c1876f94a81a19166cc4eeb3fac84a895f5e /include
parent6ff0bc94eee96fe45e5caa338c8b03cb99431fa9 (diff)
downloadop-kernel-dev-fe086a7bea7ab714930bd48addba961ceeef7634.zip
op-kernel-dev-fe086a7bea7ab714930bd48addba961ceeef7634.tar.gz
[IA64] Provide ACPI fixup for /proc/cpuinfo/physical_id
Legacy HP ia64 platforms currently cannot provide /proc/cpuinfo/physical_id due to legacy SAL/PAL implementations. However, that physical topology information can be obtained via ACPI. Provide an interface that gives ACPI one last chance to provide physical_id for these legacy platforms. This logic only comes into play iff: - ACPI actually provides slot information for the CPU - we lack a valid socket_id Otherwise, we don't do anything. Since x86 uses the ACPI processor driver as well, we provide a nop stub function for arch_fix_phys_package_id() in asm-x86/topology.h Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/asm-ia64/topology.h2
-rw-r--r--include/asm-x86/topology.h4
2 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-ia64/topology.h b/include/asm-ia64/topology.h
index f2f72ef..32863b3 100644
--- a/include/asm-ia64/topology.h
+++ b/include/asm-ia64/topology.h
@@ -116,6 +116,8 @@ void build_cpu_to_node_map(void);
#define smt_capable() (smp_num_siblings > 1)
#endif
+extern void arch_fix_phys_package_id(int num, u32 slot);
+
#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
CPU_MASK_ALL : \
node_to_cpumask(pcibus_to_node(bus)) \
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index 0e6d6b0..4f35a0f 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -193,6 +193,10 @@ extern cpumask_t cpu_coregroup_map(int cpu);
#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu))
#endif
+static inline void arch_fix_phys_package_id(int num, u32 slot)
+{
+}
+
struct pci_bus;
void set_pci_bus_resources_arch_default(struct pci_bus *b);
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