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| author | H. Peter Anvin <hpa@zytor.com> | 2008-08-27 19:17:07 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-08-27 19:17:07 -0700 |
| commit | b30a72a7edfc64c8929104d5c2178aca489aa559 (patch) | |
| tree | 2b26c155c318d08d946bd2d70cf815dcdb29a243 /arch/x86/kernel/cpu/perfctr-watchdog.c | |
| parent | f1c5d30e1d79bbfb60eaf189db862d3cb2bcac92 (diff) | |
| parent | c1b362e3b4d331a63915b268a33207311a439d60 (diff) | |
| download | blackbird-op-linux-b30a72a7edfc64c8929104d5c2178aca489aa559.tar.gz blackbird-op-linux-b30a72a7edfc64c8929104d5c2178aca489aa559.zip | |
Merge branch 'x86/urgent' into x86/cpu
Conflicts:
arch/x86/kernel/cpu/cyrix.c
Diffstat (limited to 'arch/x86/kernel/cpu/perfctr-watchdog.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perfctr-watchdog.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c index de7439f82b92..05cc22dbd4ff 100644 --- a/arch/x86/kernel/cpu/perfctr-watchdog.c +++ b/arch/x86/kernel/cpu/perfctr-watchdog.c @@ -478,7 +478,13 @@ static int setup_p4_watchdog(unsigned nmi_hz) perfctr_msr = MSR_P4_IQ_PERFCTR1; evntsel_msr = MSR_P4_CRU_ESCR0; cccr_msr = MSR_P4_IQ_CCCR1; - cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4); + + /* Pentium 4 D processors don't support P4_CCCR_OVF_PMI1 */ + if (boot_cpu_data.x86_model == 4 && boot_cpu_data.x86_mask == 4) + cccr_val = P4_CCCR_OVF_PMI0; + else + cccr_val = P4_CCCR_OVF_PMI1; + cccr_val |= P4_CCCR_ESCR_SELECT(4); } evntsel = P4_ESCR_EVENT_SELECT(0x3F) |
