diff mbox series

[V3,1/8] perf/x86/intel/P4: Unify logic for detecting HT

Message ID 20220922133800.12918-2-rui.zhang@intel.com (mailing list archive)
State Handled Elsewhere
Headers show
Series x86/topology: Improve CPUID.1F handling | expand

Commit Message

Zhang Rui Sept. 22, 2022, 1:37 p.m. UTC
Any value larger than 1 suggests HT is supported.

Although smp_num_siblings cannot be larger than 2 on P4 platform, it is
better to keep the logic consistent across the kernel.

Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 arch/x86/include/asm/perf_event_p4.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/x86/include/asm/perf_event_p4.h b/arch/x86/include/asm/perf_event_p4.h
index 94de1a05aeba..b14e9a20a7c0 100644
--- a/arch/x86/include/asm/perf_event_p4.h
+++ b/arch/x86/include/asm/perf_event_p4.h
@@ -189,7 +189,7 @@  static inline int p4_ht_active(void)
 static inline int p4_ht_thread(int cpu)
 {
 #ifdef CONFIG_SMP
-	if (smp_num_siblings == 2)
+	if (smp_num_siblings > 1)
 		return cpu != cpumask_first(this_cpu_cpumask_var_ptr(cpu_sibling_map));
 #endif
 	return 0;