[linux-yocto] [PATCH 5/6] x86 tsc_msr: Add Airmont reference clock values
Yong, Jonathan
jonathan.yong at intel.com
Mon Jun 20 01:25:35 PDT 2016
From: Len Brown <len.brown at intel.com>
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 at intel.com>
Signed-off-by: Len Brown <len.brown at intel.com>
Signed-off-by: Yong, Jonathan <jonathan.yong at intel.com>
---
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)
--
2.7.3
More information about the linux-yocto
mailing list