From 077315abf531676f4b666b223a6a9412cf95476c Mon Sep 17 00:00:00 2001
From: Vincent Brillault <git@lerya.net>
Date: Mon, 25 Sep 2017 21:21:45 +0200
Subject: [PATCH] turbostat: import msr-index header from linux

Since Linux 4.12, the kernel does not expose msr-index.h to the userland
anymore. This commit pulls and hardcode the required definitions.
---
 Makefile.am     |  4 ++-
 configure.ac    | 28 +------------------
 src/msr-index.h | 74 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/turbostat.c |  2 +-
 4 files changed, 79 insertions(+), 29 deletions(-)
 create mode 100644 src/msr-index.h

diff --git a/Makefile.am b/Makefile.am
index 24c5b8c0..04636b3f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1680,7 +1680,9 @@ endif
 
 if BUILD_PLUGIN_TURBOSTAT
 pkglib_LTLIBRARIES += turbostat.la
-turbostat_la_SOURCES = src/turbostat.c
+turbostat_la_SOURCES = \
+	src/turbostat.c \
+	src/msr-index.h
 turbostat_la_LDFLAGS = $(PLUGIN_LDFLAGS)
 endif
 
diff --git a/configure.ac b/configure.ac
index 8f2a9ab3..55f78d8a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -521,32 +521,6 @@ if test "x$ac_system" = "xLinux"; then
     ]]
   )
   # For the turbostat plugin
-  AC_CHECK_HEADERS([asm/msr-index.h],
-    [have_asm_msrindex_h="yes"],
-    [have_asm_msrindex_h="no"]
-  )
-
-  if test "x$have_asm_msrindex_h" = "xyes"; then
-    AC_CACHE_CHECK([whether asm/msr-index.h has MSR_PKG_C10_RESIDENCY],
-      [c_cv_have_usable_asm_msrindex_h],
-      [
-        AC_COMPILE_IFELSE(
-          [
-            AC_LANG_PROGRAM(
-              [[#include<asm/msr-index.h>]],
-              [[
-                int y = MSR_PKG_C10_RESIDENCY;
-                return(y);
-              ]]
-            )
-          ],
-          [c_cv_have_usable_asm_msrindex_h="yes"],
-          [c_cv_have_usable_asm_msrindex_h="no"],
-        )
-      ]
-    )
-  fi
-
   AC_CHECK_HEADERS([cpuid.h],
     [have_cpuid_h="yes"],
     [have_cpuid_h="no (cpuid.h not found)"]
@@ -6227,7 +6201,7 @@ if test "x$ac_system" = "xLinux"; then
     plugin_ipvs="yes"
   fi
 
-  if test "x$c_cv_have_usable_asm_msrindex_h" = "xyes" && test "x$have_cpuid_h" = "xyes"; then
+  if test "x$have_cpuid_h" = "xyes"; then
     plugin_turbostat="yes"
   fi
 
diff --git a/src/msr-index.h b/src/msr-index.h
new file mode 100644
index 00000000..404d4675
--- /dev/null
+++ b/src/msr-index.h
@@ -0,0 +1,74 @@
+/*
+ * Partial header file imported from the linux kernel
+ * (arch/x86/include/asm/msr-index.h)
+ * as it is not provided by the kernel sources anymore
+ *
+ * Only the minimal blocks of macro have been included
+ */
+
+#ifndef _ASM_X86_MSR_INDEX_H
+#define _ASM_X86_MSR_INDEX_H
+
+/*
+ * CPU model specific register (MSR) numbers.
+ *
+ * Do not add new entries to this file unless the definitions are shared
+ * between multiple compilation units.
+ */
+
+/* Intel MSRs. Some also available on other CPUs */
+
+/* C-state Residency Counters */
+#define MSR_PKG_C3_RESIDENCY		0x000003f8
+#define MSR_PKG_C6_RESIDENCY		0x000003f9
+#define MSR_ATOM_PKG_C6_RESIDENCY	0x000003fa
+#define MSR_PKG_C7_RESIDENCY		0x000003fa
+#define MSR_CORE_C3_RESIDENCY		0x000003fc
+#define MSR_CORE_C6_RESIDENCY		0x000003fd
+#define MSR_CORE_C7_RESIDENCY		0x000003fe
+#define MSR_KNL_CORE_C6_RESIDENCY	0x000003ff
+#define MSR_PKG_C2_RESIDENCY		0x0000060d
+#define MSR_PKG_C8_RESIDENCY		0x00000630
+#define MSR_PKG_C9_RESIDENCY		0x00000631
+#define MSR_PKG_C10_RESIDENCY		0x00000632
+
+/* Run Time Average Power Limiting (RAPL) Interface */
+
+#define MSR_RAPL_POWER_UNIT		0x00000606
+
+#define MSR_PKG_POWER_LIMIT		0x00000610
+#define MSR_PKG_ENERGY_STATUS		0x00000611
+#define MSR_PKG_PERF_STATUS		0x00000613
+#define MSR_PKG_POWER_INFO		0x00000614
+
+#define MSR_DRAM_POWER_LIMIT		0x00000618
+#define MSR_DRAM_ENERGY_STATUS		0x00000619
+#define MSR_DRAM_PERF_STATUS		0x0000061b
+#define MSR_DRAM_POWER_INFO		0x0000061c
+
+#define MSR_PP0_POWER_LIMIT		0x00000638
+#define MSR_PP0_ENERGY_STATUS		0x00000639
+#define MSR_PP0_POLICY			0x0000063a
+#define MSR_PP0_PERF_STATUS		0x0000063b
+
+#define MSR_PP1_POWER_LIMIT		0x00000640
+#define MSR_PP1_ENERGY_STATUS		0x00000641
+#define MSR_PP1_POLICY			0x00000642
+
+
+
+/* Intel defined MSRs. */
+#define MSR_IA32_TSC			0x00000010
+#define MSR_SMI_COUNT			0x00000034
+
+#define MSR_IA32_MPERF			0x000000e7
+#define MSR_IA32_APERF			0x000000e8
+
+#define MSR_IA32_THERM_STATUS		0x0000019c
+
+#define MSR_IA32_TEMPERATURE_TARGET	0x000001a2
+
+#define MSR_IA32_PACKAGE_THERM_STATUS		0x000001b1
+
+
+#endif /* _ASM_X86_MSR_INDEX_H */
diff --git a/src/turbostat.c b/src/turbostat.c
index 1049fb2a..034f1fdf 100644
--- a/src/turbostat.c
+++ b/src/turbostat.c
@@ -41,7 +41,7 @@
 #include "plugin.h"
 #include "utils_time.h"
 
-#include <asm/msr-index.h>
+#include "msr-index.h"
 #include <cpuid.h>
 #ifdef HAVE_SYS_CAPABILITY_H
 #include <sys/capability.h>
-- 
2.30.2