[src/trunk]: src/sys/arch/x86 Rename CPUID_APM_TSC to CPUID_APM_ITSC. No func...

[msaitoh <msaitoh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/cd1ea6033125
branches:  trunk
changeset: 970899:cd1ea6033125
user:      msaitoh <msaitoh%NetBSD.org@localhost>
date:      Mon Apr 06 09:24:49 2020 +0000

description:
Rename CPUID_APM_TSC to CPUID_APM_ITSC. No functional change.

diffstat:

 sys/arch/x86/include/specialreg.h |  8 +++++---
 sys/arch/x86/x86/tsc.c            |  6 +++---
 2 files changed, 8 insertions(+), 6 deletions(-)

diffs (57 lines):

diff -r 734be625fc21 -r cd1ea6033125 sys/arch/x86/include/specialreg.h
--- a/sys/arch/x86/include/specialreg.h Mon Apr 06 08:28:53 2020 +0000
+++ b/sys/arch/x86/include/specialreg.h Mon Apr 06 09:24:49 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: specialreg.h,v 1.160 2020/04/06 02:36:49 msaitoh Exp $ */
+/*     $NetBSD: specialreg.h,v 1.161 2020/04/06 09:24:49 msaitoh Exp $ */
 
 /*
  * Copyright (c) 2014-2019 The NetBSD Foundation, Inc.
@@ -697,8 +697,10 @@
        "\35" "L2IPERFC" "\36" "MWAITX" "\37" "B30"     "\40" "B31"
 
 /*
- * AMD Advanced Power Management
+ * Advanced Power Management
  * CPUID Fn8000_0007 %edx
+ *
+ * Only ITSC is for both Intel and AMD. Others are only for AMD.
  */
 #define CPUID_APM_TS   0x00000001      /* Temperature Sensor */
 #define CPUID_APM_FID  0x00000002      /* Frequency ID control */
@@ -708,7 +710,7 @@
 #define CPUID_APM_STC  0x00000020      /* Software thermal control (STC) */
 #define CPUID_APM_100  0x00000040      /* 100MHz multiplier control */
 #define CPUID_APM_HWP  0x00000080      /* HW P-State control */
-#define CPUID_APM_TSC  0x00000100      /* TSC invariant (Intel, too) */
+#define CPUID_APM_ITSC 0x00000100      /* invariant TSC */
 #define CPUID_APM_CPB  0x00000200      /* Core performance boost */
 #define CPUID_APM_EFF  0x00000400      /* Effective Frequency (read-only) */
 #define CPUID_APM_PROCFI 0x00000800    /* Proc Feedback Interface */
diff -r 734be625fc21 -r cd1ea6033125 sys/arch/x86/x86/tsc.c
--- a/sys/arch/x86/x86/tsc.c    Mon Apr 06 08:28:53 2020 +0000
+++ b/sys/arch/x86/x86/tsc.c    Mon Apr 06 09:24:49 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tsc.c,v 1.39 2020/04/03 03:05:39 knakahara Exp $       */
+/*     $NetBSD: tsc.c,v 1.40 2020/04/06 09:24:50 msaitoh Exp $ */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tsc.c,v 1.39 2020/04/03 03:05:39 knakahara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tsc.c,v 1.40 2020/04/06 09:24:50 msaitoh Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -135,7 +135,7 @@
                x86_cpuid(0x80000000, descs);
                if (descs[0] >= 0x80000007) {
                        x86_cpuid(0x80000007, descs);
-                       invariant = (descs[3] & CPUID_APM_TSC) != 0;
+                       invariant = (descs[3] & CPUID_APM_ITSC) != 0;
                }
        }