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-rw-r--r--arch/x86/kernel/cpu/perf_event.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 1342f236e32a..18f05eccbb62 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -2066,12 +2066,6 @@ static __init int p6_pmu_init(void)
2066 2066
2067 x86_pmu = p6_pmu; 2067 x86_pmu = p6_pmu;
2068 2068
2069 if (!cpu_has_apic) {
2070 pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n");
2071 pr_info("no hardware sampling interrupt available.\n");
2072 x86_pmu.apic = 0;
2073 }
2074
2075 return 0; 2069 return 0;
2076} 2070}
2077 2071
@@ -2163,6 +2157,16 @@ static __init int amd_pmu_init(void)
2163 return 0; 2157 return 0;
2164} 2158}
2165 2159
2160static void __init pmu_check_apic(void)
2161{
2162 if (cpu_has_apic)
2163 return;
2164
2165 x86_pmu.apic = 0;
2166 pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n");
2167 pr_info("no hardware sampling interrupt available.\n");
2168}
2169
2166void __init init_hw_perf_events(void) 2170void __init init_hw_perf_events(void)
2167{ 2171{
2168 int err; 2172 int err;
@@ -2184,6 +2188,8 @@ void __init init_hw_perf_events(void)
2184 return; 2188 return;
2185 } 2189 }
2186 2190
2191 pmu_check_apic();
2192
2187 pr_cont("%s PMU driver.\n", x86_pmu.name); 2193 pr_cont("%s PMU driver.\n", x86_pmu.name);
2188 2194
2189 if (x86_pmu.num_events > X86_PMC_MAX_GENERIC) { 2195 if (x86_pmu.num_events > X86_PMC_MAX_GENERIC) {