diff options
| author | Peter Zijlstra <[email protected]> | 2012-03-27 16:50:42 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2012-04-03 08:33:38 +0200 |
| commit | 7b8e6da46b921d30ac1553cac56d8fb74f0b431d (patch) | |
| tree | c1dde602088af9d02dc10d8d8bed94dcb3a706bb | |
| parent | 6308191f6f55d3629c7dbe72dfb856ad9fa560fd (diff) | |
perf/x86/p4: Add format attributes
Steven reported his P4 not booting properly, the missing format
attributes cause a NULL ptr deref. Cure this by adding the
missing format specification.
I took the format description out of the comment near
p4_config_pack*() and hope that comment is still relatively
accurate.
Reported-by: Steven Rostedt <[email protected]>
Reported-by: Bruno Prémont <[email protected]>
Tested-by: Steven Rostedt <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Cyrill Gorcunov <[email protected]>
Cc: Lin Ming <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/r/1332859842.16159.227.camel@twins
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event_p4.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index ef484d9d0a25..a2dfacfd7103 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -1271,6 +1271,17 @@ done: return num ? -EINVAL : 0; } +PMU_FORMAT_ATTR(cccr, "config:0-31" ); +PMU_FORMAT_ATTR(escr, "config:32-62"); +PMU_FORMAT_ATTR(ht, "config:63" ); + +static struct attribute *intel_p4_formats_attr[] = { + &format_attr_cccr.attr, + &format_attr_escr.attr, + &format_attr_ht.attr, + NULL, +}; + static __initconst const struct x86_pmu p4_pmu = { .name = "Netburst P4/Xeon", .handle_irq = p4_pmu_handle_irq, @@ -1305,6 +1316,8 @@ static __initconst const struct x86_pmu p4_pmu = { * the former idea is taken from OProfile code */ .perfctr_second_write = 1, + + .format_attrs = intel_p4_formats_attr, }; __init int p4_pmu_init(void) |