From: Len Brown <len.brown@intel.com>
Date: Tue, 26 May 2015 16:19:37 +0000 (-0400)
Subject: tools/power turbostat: correctly decode of ENERGY_PERFORMANCE_BIAS
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e9be7dd62899194ebdd90d417fc6c07d5d157912;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

tools/power turbostat: correctly decode of ENERGY_PERFORMANCE_BIAS

When EPB is 0xF, turbosat was incorrectly describing it as "custom"
instead of calling it "powersave":

< cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x0000000f (custom)
> cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x0000000f (powersave)

Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 256a5e1de381..f92211e9e70c 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -1919,7 +1919,7 @@ int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 	if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
 		return 0;
 
-	switch (msr & 0x7) {
+	switch (msr & 0xF) {
 	case ENERGY_PERF_BIAS_PERFORMANCE:
 		epb_string = "performance";
 		break;