Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1486435

[PATCH 1/2 v2] x86,tsc: Use cpu id defines from intel-family.h

From Prarit Bhargava <prarit@redhat.com>
Newsgroups linux.kernel
Subject [PATCH 1/2 v2] x86,tsc: Use cpu id defines from intel-family.h
Date 2016-09-19 15:00 +0200
Message-ID <sj6kW-5ze-25@gated-at.bofh.it> (permalink)
References <sj6kW-5ze-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


asm/intel-family.h contains defines for cpu ids which should be
used in the native_calibrate_tsc() function.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Rafael Aquini <aquini@redhat.com>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Len Brown <len.brown@intel.com>
Cc: lenb@kernel.org
---
 arch/x86/kernel/tsc.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 78b9cb5a26af..2344758ba8a3 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -23,6 +23,7 @@
 #include <asm/x86_init.h>
 #include <asm/geode.h>
 #include <asm/apic.h>
+#include <asm/intel-family.h>
 
 unsigned int __read_mostly cpu_khz;	/* TSC clocks / usec, not used here */
 EXPORT_SYMBOL(cpu_khz);
@@ -686,11 +687,11 @@ unsigned long native_calibrate_tsc(void)
 
 	if (crystal_khz == 0) {
 		switch (boot_cpu_data.x86_model) {
-		case 0x4E:	/* SKL */
-		case 0x5E:	/* SKL */
+		case INTEL_FAM6_SKYLAKE_MOBILE:
+		case INTEL_FAM6_SKYLAKE_DESKTOP:
 			crystal_khz = 24000;	/* 24.0 MHz */
 			break;
-		case 0x5C:	/* BXT */
+		case INTEL_FAM6_ATOM_GOLDMONT:
 			crystal_khz = 19200;	/* 19.2 MHz */
 			break;
 		}
-- 
1.7.9.3

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread


Thread

[PATCH 1/2 v2] x86,tsc: Use cpu id defines from intel-family.h Prarit Bhargava <prarit@redhat.com> - 2016-09-19 15:00 +0200
  [tip:x86/timers] x86/tsc: Use cpu id defines instead of hex  constants tip-bot for Prarit Bhargava <tipbot@zytor.com> - 2016-09-20 01:10 +0200

csiph-web