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authorPrarit Bhargava <prarit@redhat.com>2016-09-19 08:51:40 -0400
committerThomas Gleixner <tglx@linutronix.de>2016-09-20 01:00:32 +0200
commit655e52d2b62458032fc67ff7daaa664af6f36fb5 (patch)
treef95fcb753708130c29e9b924909685facbca9dc6
parentf99fd22e4d4bc84880a8a3117311bbf0e3a6a9dc (diff)
x86/tsc: Use cpu id defines instead of hex constants
asm/intel-family.h contains defines for cpu ids which should be used instead of hex constants. Convert the switch case in native_calibrate_tsc() to use the defines before adding more cpu models. [ tglx: Massaged changelog ] Signed-off-by: Prarit Bhargava <prarit@redhat.com> Cc: Len Brown <len.brown@intel.com> Cc: Rafael Aquini <aquini@redhat.com> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Cc: Andy Lutomirski <luto@kernel.org> Link: http://lkml.kernel.org/r/1474289501-31717-2-git-send-email-prarit@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/kernel/tsc.c7
1 files 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;
}