Commit-ID: 6fcb41cdaee5056c96de88ee095bddd27a7697de
Gitweb: http://git.kernel.org/tip/6fcb41cdaee5056c96de88ee095bddd27a7697de
Author: Len Brown <len.brown@xxxxxxxxx>
AuthorDate: Fri, 17 Jun 2016 01:22:48 -0400
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Sun, 10 Jul 2016 17:00:13 +0200
x86/tsc_msr: Add Airmont reference clock values
per the Intel 64 and IA-32 Architecture Software Developer's Manual...
Add the reference clock for Intel Atom Processors
Based on the Airmont Microarchitecture.
Reported-by: Stephane Gasparini <stephane.gasparini@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/abc6a0f4b18281410da1a3f26e2819d8e03e144f.1466138954.git.len.brown@xxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/kernel/tsc_msr.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/tsc_msr.c b/arch/x86/kernel/tsc_msr.c
index 20487e2..65b3d8cb 100644
--- a/arch/x86/kernel/tsc_msr.c
+++ b/arch/x86/kernel/tsc_msr.c
@@ -13,7 +13,7 @@
#include <asm/apic.h>
#include <asm/param.h>
-#define MAX_NUM_FREQS 8
+#define MAX_NUM_FREQS 9
/*
* If MSR_PERF_STAT[31] is set, the maximum resolved bus ratio can be
@@ -40,6 +40,9 @@ static struct freq_desc freq_desc_tables[] = {
{ 6, 0x37, 1, { 83300, 100000, 133300, 116700, 80000, 0, 0, 0 } },
/* ANN - Intel Atom processor Z3500 series */
{ 6, 0x5a, 1, { 83300, 100000, 133300, 100000, 0, 0, 0, 0 } },
+ /* AMT - Intel Atom processor X7-Z8000 and X5-Z8000 series */
+ { 6, 0x4c, 1, { 83300, 100000, 133300, 116700,
+ 80000, 93300, 90000, 88900, 87500 } },
};
static int match_cpu(u8 family, u8 model)
--
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