[PATCH 29/44] tools/power turbostat: skip unused counters on BDX

From: Len Brown
Date: Wed Mar 01 2017 - 00:36:07 EST


From: Len Brown <len.brown@xxxxxxxxx>

Skip these two counters on BDX, as they are always zero:
cc7, pc7

Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
tools/power/x86/turbostat/turbostat.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 67a275882a8d..334c4c29d4b5 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2612,6 +2612,19 @@ int is_dnv(unsigned int family, unsigned int model)
}
return 0;
}
+int is_bdx(unsigned int family, unsigned int model)
+{
+
+ if (!genuine_intel)
+ return 0;
+
+ switch (model) {
+ case INTEL_FAM6_BROADWELL_X:
+ case INTEL_FAM6_BROADWELL_XEON_D:
+ return 1;
+ }
+ return 0;
+}
int is_skx(unsigned int family, unsigned int model)
{

@@ -3933,6 +3946,10 @@ void process_cpuid()
BIC_NOT_PRESENT(BIC_CPU_c7);
BIC_NOT_PRESENT(BIC_Pkgpc7);
}
+ if (is_bdx(family, model)) {
+ BIC_NOT_PRESENT(BIC_CPU_c7);
+ BIC_NOT_PRESENT(BIC_Pkgpc7);
+ }
if (has_hsw_msrs(family, model)) {
BIC_PRESENT(BIC_Pkgpc8);
BIC_PRESENT(BIC_Pkgpc9);
--
2.11.0.161.g6610af872