summaryrefslogtreecommitdiffstats
path: root/tools/power
diff options
context:
space:
mode:
authorLen Brown <len.brown@intel.com>2016-03-11 13:26:03 -0500
committerLen Brown <len.brown@intel.com>2016-03-13 03:55:42 -0400
commitaa8d8cc79af16e16da04efff1c1a72b1ea4a9e7e (patch)
tree50e86653357cc2e3e48001ac2760e2a50715c0f0 /tools/power
parent0102b06747c7d24e334d2b27c4b43eed693676f1 (diff)
downloadlinux-aa8d8cc79af16e16da04efff1c1a72b1ea4a9e7e.tar.bz2
tools/power turbostat: indicate SMX and SGX support
SGX presence is related to a SKL power workaround, so lets show when that is enabled. Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'tools/power')
-rw-r--r--tools/power/x86/turbostat/turbostat.c28
1 files changed, 27 insertions, 1 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 43a6dda434ef..db9c9d100042 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -3052,6 +3052,17 @@ guess:
return 0;
}
+void decode_feature_control_msr(void)
+{
+ unsigned long long msr;
+
+ if (!get_msr(base_cpu, MSR_IA32_FEATURE_CONTROL, &msr))
+ fprintf(outf, "cpu%d: MSR_IA32_FEATURE_CONTROL: 0x%08llx (%sLocked %s)\n",
+ base_cpu, msr,
+ msr & FEATURE_CONTROL_LOCKED ? "" : "UN-",
+ msr & (1 << 18) ? "SGX" : "");
+}
+
void decode_misc_enable_msr(void)
{
unsigned long long msr;
@@ -3111,9 +3122,10 @@ void process_cpuid()
if (debug) {
fprintf(outf, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
max_level, family, model, stepping, family, model, stepping);
- fprintf(outf, "CPUID(1): %s %s %s %s %s %s %s %s\n",
+ fprintf(outf, "CPUID(1): %s %s %s %s %s %s %s %s %s\n",
ecx & (1 << 0) ? "SSE3" : "-",
ecx & (1 << 3) ? "MONITOR" : "-",
+ ecx & (1 << 6) ? "SMX" : "-",
ecx & (1 << 7) ? "EIST" : "-",
ecx & (1 << 8) ? "TM2" : "-",
edx & (1 << 4) ? "TSC" : "-",
@@ -3175,6 +3187,20 @@ void process_cpuid()
if (debug)
decode_misc_enable_msr();
+ if (max_level >= 0x7) {
+ int has_sgx;
+
+ ecx = 0;
+
+ __cpuid_count(0x7, 0, eax, ebx, ecx, edx);
+
+ has_sgx = ebx & (1 << 2);
+ fprintf(outf, "CPUID(7): %sSGX\n", has_sgx ? "" : "No-");
+
+ if (has_sgx)
+ decode_feature_control_msr();
+ }
+
if (max_level >= 0x15) {
unsigned int eax_crystal;
unsigned int ebx_tsc;