From: Len Brown <len.brown@intel.com>
Date: Wed, 6 Apr 2016 21:15:57 +0000 (-0400)
Subject: tools/power turbostat: decode BXT TSC frequency via CPUID
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=e8efbc80db5e824ce2382d5e65429b6b493e71e2;p=openwrt%2Fstaging%2Fblogic.git

tools/power turbostat: decode BXT TSC frequency via CPUID

Hard-code BXT ART to 19200MHz, so turbostat --debug
can fully enumerate TSC:

CPUID(0x15): eax_crystal: 3 ebx_tsc: 186 ecx_crystal_hz: 0
TSC: 1190 MHz (19200000 Hz * 186 / 3 / 1000000)

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 96d8eafdd380..b15c84323b73 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -3278,7 +3278,10 @@ void process_cpuid()
 				switch(model) {
 				case 0x4E:	/* SKL */
 				case 0x5E:	/* SKL */
-					crystal_hz = 24000000;	/* 24 MHz */
+					crystal_hz = 24000000;	/* 24.0 MHz */
+					break;
+				case 0x5C:	/* BXT */
+					crystal_hz = 19200000;	/* 19.2 MHz */
 					break;
 				default:
 					crystal_hz = 0;