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-rw-r--r--src/soc/intel/common/block/cpu/cpulib.c46
-rw-r--r--src/soc/intel/common/block/include/intelblocks/cpulib.h22
2 files changed, 24 insertions, 44 deletions
diff --git a/src/soc/intel/common/block/cpu/cpulib.c b/src/soc/intel/common/block/cpu/cpulib.c
index 9964f2b02c..a7f89baafd 100644
--- a/src/soc/intel/common/block/cpu/cpulib.c
+++ b/src/soc/intel/common/block/cpu/cpulib.c
@@ -185,50 +185,36 @@ int cpu_get_burst_mode_state(void)
}
/*
- * Enable Burst mode.
+ * Program CPU Burst mode
+ * true = Enable Burst mode.
+ * false = Disable Burst mode.
*/
-void cpu_enable_burst_mode(void)
+void cpu_burst_mode(bool burst_mode_status)
{
msr_t msr;
msr = rdmsr(IA32_MISC_ENABLE);
- msr.hi &= ~BURST_MODE_DISABLE;
+ if (burst_mode_status)
+ msr.hi &= ~BURST_MODE_DISABLE;
+ else
+ msr.hi |= BURST_MODE_DISABLE;
wrmsr(IA32_MISC_ENABLE, msr);
}
/*
- * Disable Burst mode.
+ * Program Enhanced Intel Speed Step Technology
+ * true = Enable EIST.
+ * false = Disable EIST.
*/
-void cpu_disable_burst_mode(void)
+void cpu_set_eist(bool eist_status)
{
msr_t msr;
msr = rdmsr(IA32_MISC_ENABLE);
- msr.hi |= BURST_MODE_DISABLE;
- wrmsr(IA32_MISC_ENABLE, msr);
-}
-
-/*
- * Enable Intel Enhanced Speed Step Technology.
- */
-void cpu_enable_eist(void)
-{
- msr_t msr;
-
- msr = rdmsr(IA32_MISC_ENABLE);
- msr.lo |= (1 << 16); /* Enhanced SpeedStep Enable */
- wrmsr(IA32_MISC_ENABLE, msr);
-}
-
-/*
- * Disable Intel Enhanced Speed Step Technology.
- */
-void cpu_disable_eist(void)
-{
- msr_t msr;
-
- msr = rdmsr(IA32_MISC_ENABLE);
- msr.lo &= ~(1 << 16); /* Enhanced SpeedStep Disable */
+ if (eist_status)
+ msr.lo |= (1 << 16);
+ else
+ msr.lo &= ~(1 << 16);
wrmsr(IA32_MISC_ENABLE, msr);
}
diff --git a/src/soc/intel/common/block/include/intelblocks/cpulib.h b/src/soc/intel/common/block/include/intelblocks/cpulib.h
index 5cea96e409..70ad253607 100644
--- a/src/soc/intel/common/block/include/intelblocks/cpulib.h
+++ b/src/soc/intel/common/block/include/intelblocks/cpulib.h
@@ -97,24 +97,18 @@ enum {
int cpu_get_burst_mode_state(void);
/*
- * Enable Burst mode.
+ * Program CPU Burst mode
+ * true = Enable Burst mode.
+ * false = Disable Burst mode.
*/
-void cpu_enable_burst_mode(void);
+void cpu_burst_mode(bool burst_mode_status);
/*
- * Disable Burst mode.
+ * Program Enhanced Intel Speed Step Technology
+ * true = Enable EIST.
+ * false = Disable EIST.
*/
-void cpu_disable_burst_mode(void);
-
-/*
- * Enable Intel Enhanced Speed Step Technology.
- */
-void cpu_enable_eist(void);
-
-/*
- * Disable Intel Enhanced Speed Step Technology.
- */
-void cpu_disable_eist(void);
+void cpu_set_eist(bool eist_status);
/*
* Set Bit 6 (ENABLE_IA_UNTRUSTED_MODE) of MSR 0x120