[PATCH v2 3/8] x86, cpu: provide a function topology_num_packages to enumerate #packages
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: 2016-09-01 21:13:34
Also in:
linux-acpi, lkml
Subsystem:
the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
From: Tim Chen <redacted> We compute the the number of active packages during boot and topology update. Provide a function to export this info for functions that need this topology info. Signed-off-by: Tim Chen <redacted> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> --- arch/x86/include/asm/topology.h | 1 + arch/x86/kernel/smpboot.c | 5 +++++ 2 files changed, 6 insertions(+)
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 98b669d..0bcf3b7 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h@@ -129,6 +129,7 @@ static inline int topology_max_smt_threads(void) } int topology_update_package_map(unsigned int apicid, unsigned int cpu); +extern int topology_num_packages(void); extern int topology_phys_to_logical_pkg(unsigned int pkg); #else #define topology_max_packages() (1)
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 3782bd4..292df31 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c@@ -297,6 +297,11 @@ found: return 0; } +int topology_num_packages(void) +{ + return logical_packages; +} + /** * topology_phys_to_logical_pkg - Map a physical package id to a logical *
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2.7.4