From: Zhang Rui <rui.zhang@intel.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org,
linux-hwmon@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
dave.hansen@linux.intel.com, hpa@zytor.com, corbet@lwn.net,
fenghua.yu@intel.com, jdelvare@suse.com, linux@roeck-us.net,
len.brown@intel.com, rui.zhang@intel.com
Subject: [PATCH V2 1/8] perf/x86/intel/P4: Fix smp_num_siblings usage
Date: Tue, 16 Aug 2022 13:16:26 +0800 [thread overview]
Message-ID: <20220816051633.17775-2-rui.zhang@intel.com> (raw)
In-Reply-To: <20220816051633.17775-1-rui.zhang@intel.com>
smp_num_siblings can be larger than 2.
Any value larger than 1 suggests HT is supported.
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 --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;
--
2.25.1
next prev parent reply other threads:[~2022-08-16 7:57 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-16 5:16 [PATCH V2 0/8] x86/topology: Improve CPUID.1F handling Zhang Rui
2022-08-16 5:16 ` Zhang Rui [this message]
2022-08-16 8:27 ` [PATCH V2 1/8] perf/x86/intel/P4: Fix smp_num_siblings usage Peter Zijlstra
2022-08-16 9:47 ` Zhang Rui
2022-08-16 10:08 ` Peter Zijlstra
2022-08-16 5:16 ` [PATCH V2 2/8] hwmon/coretemp: Rename indx to index Zhang Rui
2022-08-16 5:16 ` [PATCH V2 3/8] hwmon/coretemp: Handle large core ID value Zhang Rui
2022-08-16 11:16 ` Guenter Roeck
2022-08-16 5:16 ` [PATCH V2 4/8] x86/topology: Fix multiple packages shown on a single-package system Zhang Rui
2022-09-21 16:26 ` Dave Hansen
2022-09-22 13:38 ` Zhang Rui
2022-08-16 5:16 ` [PATCH V2 5/8] x86/topology: Fix duplicated core ID within a package Zhang Rui
2022-08-16 5:16 ` [PATCH V2 6/8] x86/topology: Fix max_siblings calculation Zhang Rui
2022-08-16 5:16 ` [PATCH V2 7/8] Documentation: x86: Update smp_num_siblings/x86_max_cores description Zhang Rui
2022-08-16 5:16 ` [PATCH V2 8/8] Documentation: x86: Remove obsolete x86_max_dies description Zhang Rui
2022-09-20 1:57 ` [PATCH V2 0/8] x86/topology: Improve CPUID.1F handling Zhang Rui
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