From 10ae1cf2cda38e681849dcc9e6e86ee3330a8b17 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20Niew=C3=B6hner?= <foss@mniewoehner.de>
Date: Sun, 11 Oct 2020 14:05:32 +0200
Subject: {cpu,soc}/intel: deduplicate cpu code
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Move a whole bunch of copy-pasta code from soc/intel/{bdw,skl,cnl,icl,
tgl,ehl,jsl,adl} and cpu/intel/{hsw,model_*} to cpu/intel/common.

This change just moves the code. Rework is done in CB:46588.

Change-Id: Ib0cc834de8492d59c423317598e1c11847a0b1ab
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46274
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 src/soc/intel/alderlake/cpu.c                | 41 +--------------------------
 src/soc/intel/alderlake/include/soc/msr.h    |  1 -
 src/soc/intel/broadwell/cpu.c                | 42 ----------------------------
 src/soc/intel/broadwell/include/soc/msr.h    |  1 -
 src/soc/intel/cannonlake/cpu.c               | 41 ---------------------------
 src/soc/intel/cannonlake/include/soc/msr.h   |  1 -
 src/soc/intel/denverton_ns/include/soc/msr.h |  1 -
 src/soc/intel/elkhartlake/cpu.c              | 41 +--------------------------
 src/soc/intel/elkhartlake/include/soc/msr.h  |  1 -
 src/soc/intel/icelake/Kconfig                |  1 +
 src/soc/intel/icelake/cpu.c                  | 41 +--------------------------
 src/soc/intel/icelake/include/soc/msr.h      |  1 -
 src/soc/intel/jasperlake/cpu.c               | 41 +--------------------------
 src/soc/intel/jasperlake/include/soc/msr.h   |  1 -
 src/soc/intel/skylake/cpu.c                  | 42 ----------------------------
 src/soc/intel/skylake/include/soc/msr.h      |  1 -
 src/soc/intel/tigerlake/cpu.c                | 41 +--------------------------
 src/soc/intel/tigerlake/include/soc/msr.h    |  1 -
 18 files changed, 6 insertions(+), 334 deletions(-)

(limited to 'src/soc')

diff --git a/src/soc/intel/alderlake/cpu.c b/src/soc/intel/alderlake/cpu.c
index e6a21c170e..9b7cc3e4dd 100644
--- a/src/soc/intel/alderlake/cpu.c
+++ b/src/soc/intel/alderlake/cpu.c
@@ -14,6 +14,7 @@
 #include <cpu/x86/msr.h>
 #include <cpu/intel/smm_reloc.h>
 #include <cpu/intel/turbo.h>
+#include <cpu/intel/common/common.h>
 #include <fsp/api.h>
 #include <intelblocks/cpulib.h>
 #include <intelblocks/mp_init.h>
@@ -86,29 +87,6 @@ static void configure_misc(void)
 	wrmsr(MSR_POWER_CTL, msr);
 }
 
-static void enable_lapic_tpr(void)
-{
-	msr_t msr;
-
-	msr = rdmsr(MSR_PIC_MSG_CONTROL);
-	msr.lo &= ~(1 << 10);	/* Enable APIC TPR updates */
-	wrmsr(MSR_PIC_MSG_CONTROL, msr);
-}
-
-static void configure_dca_cap(void)
-{
-	uint32_t feature_flag;
-	msr_t msr;
-
-	/* Check feature flag in CPUID.(EAX=1):ECX[18]==1 */
-	feature_flag = cpu_get_feature_flags_ecx();
-	if (feature_flag & CPUID_DCA) {
-		msr = rdmsr(IA32_PLATFORM_DCA_CAP);
-		msr.lo |= 1;
-		wrmsr(IA32_PLATFORM_DCA_CAP, msr);
-	}
-}
-
 static void enable_pm_timer_emulation(void)
 {
 	msr_t msr;
@@ -128,23 +106,6 @@ static void enable_pm_timer_emulation(void)
 	wrmsr(MSR_EMULATE_PM_TIMER, msr);
 }
 
-static void set_energy_perf_bias(u8 policy)
-{
-	msr_t msr;
-	int ecx;
-
-	/* Determine if energy efficient policy is supported. */
-	ecx = cpuid_ecx(0x6);
-	if (!(ecx & (1 << 3)))
-		return;
-
-	/* Energy Policy is bits 3:0 */
-	msr = rdmsr(IA32_ENERGY_PERF_BIAS);
-	msr.lo &= ~0xf;
-	msr.lo |= policy & 0xf;
-	wrmsr(IA32_ENERGY_PERF_BIAS, msr);
-}
-
 /* All CPUs including BSP will run the following function. */
 void soc_core_init(struct device *cpu)
 {
diff --git a/src/soc/intel/alderlake/include/soc/msr.h b/src/soc/intel/alderlake/include/soc/msr.h
index 67e09dcf41..954fce0a82 100644
--- a/src/soc/intel/alderlake/include/soc/msr.h
+++ b/src/soc/intel/alderlake/include/soc/msr.h
@@ -5,7 +5,6 @@
 
 #include <intelblocks/msr.h>
 
-#define MSR_PIC_MSG_CONTROL		0x2e
 #define MSR_VR_MISC_CONFIG2		0x636
 
 #endif
diff --git a/src/soc/intel/broadwell/cpu.c b/src/soc/intel/broadwell/cpu.c
index 179cd43e3a..00460c6282 100644
--- a/src/soc/intel/broadwell/cpu.c
+++ b/src/soc/intel/broadwell/cpu.c
@@ -311,29 +311,6 @@ static void configure_misc(void)
 	wrmsr(IA32_PACKAGE_THERM_INTERRUPT, msr);
 }
 
-static void enable_lapic_tpr(void)
-{
-	msr_t msr;
-
-	msr = rdmsr(MSR_PIC_MSG_CONTROL);
-	msr.lo &= ~(1 << 10);	/* Enable APIC TPR updates */
-	wrmsr(MSR_PIC_MSG_CONTROL, msr);
-}
-
-static void configure_dca_cap(void)
-{
-	uint32_t feature_flag;
-	msr_t msr;
-
-	/* Check feature flag in CPUID.(EAX=1):ECX[18]==1 */
-	feature_flag = cpu_get_feature_flags_ecx();
-	if (feature_flag & CPUID_DCA) {
-		msr = rdmsr(IA32_PLATFORM_DCA_CAP);
-		msr.lo |= 1;
-		wrmsr(IA32_PLATFORM_DCA_CAP, msr);
-	}
-}
-
 static void set_max_ratio(void)
 {
 	msr_t msr, perf_ctl;
@@ -359,25 +336,6 @@ static void set_max_ratio(void)
 	       ((perf_ctl.lo >> 8) & 0xff) * CPU_BCLK);
 }
 
-static void set_energy_perf_bias(u8 policy)
-{
-	msr_t msr;
-	int ecx;
-
-	/* Determine if energy efficient policy is supported. */
-	ecx = cpuid_ecx(0x6);
-	if (!(ecx & (1 << 3)))
-		return;
-
-	/* Energy Policy is bits 3:0 */
-	msr = rdmsr(IA32_ENERGY_PERF_BIAS);
-	msr.lo &= ~0xf;
-	msr.lo |= policy & 0xf;
-	wrmsr(IA32_ENERGY_PERF_BIAS, msr);
-
-	printk(BIOS_DEBUG, "CPU: energy policy set to %u\n", policy);
-}
-
 static void configure_mca(void)
 {
 	msr_t msr;
diff --git a/src/soc/intel/broadwell/include/soc/msr.h b/src/soc/intel/broadwell/include/soc/msr.h
index 1e47b4429e..b8ed3328cc 100644
--- a/src/soc/intel/broadwell/include/soc/msr.h
+++ b/src/soc/intel/broadwell/include/soc/msr.h
@@ -5,7 +5,6 @@
 
 #include <intelblocks/msr.h>
 
-#define MSR_PIC_MSG_CONTROL		0x2e
 #define MSR_CORE_THREAD_COUNT		0x35
 #define MSR_PLATFORM_INFO		0xce
 #define  PLATFORM_INFO_SET_TDP		(1 << 29)
diff --git a/src/soc/intel/cannonlake/cpu.c b/src/soc/intel/cannonlake/cpu.c
index 0622034217..b6b921a29b 100644
--- a/src/soc/intel/cannonlake/cpu.c
+++ b/src/soc/intel/cannonlake/cpu.c
@@ -83,29 +83,6 @@ static void configure_misc(void)
 	wrmsr(MSR_POWER_CTL, msr);
 }
 
-static void enable_lapic_tpr(void)
-{
-	msr_t msr;
-
-	msr = rdmsr(MSR_PIC_MSG_CONTROL);
-	msr.lo &= ~(1 << 10);	/* Enable APIC TPR updates */
-	wrmsr(MSR_PIC_MSG_CONTROL, msr);
-}
-
-static void configure_dca_cap(void)
-{
-	uint32_t feature_flag;
-	msr_t msr;
-
-	/* Check feature flag in CPUID.(EAX=1):ECX[18]==1 */
-	feature_flag = cpu_get_feature_flags_ecx();
-	if (feature_flag & CPUID_DCA) {
-		msr = rdmsr(IA32_PLATFORM_DCA_CAP);
-		msr.lo |= 1;
-		wrmsr(IA32_PLATFORM_DCA_CAP, msr);
-	}
-}
-
 /*
  * The emulated ACPI timer allows replacing of the ACPI timer
  * (PM1_TMR) to have no impart on the system.
@@ -129,24 +106,6 @@ static void enable_pm_timer_emulation(void)
 	wrmsr(MSR_EMULATE_PM_TIMER, msr);
 }
 
-
-static void set_energy_perf_bias(u8 policy)
-{
-	msr_t msr;
-	int ecx;
-
-	/* Determine if energy efficient policy is supported. */
-	ecx = cpuid_ecx(0x6);
-	if (!(ecx & (1 << 3)))
-		return;
-
-	/* Energy Policy is bits 3:0 */
-	msr = rdmsr(IA32_ENERGY_PERF_BIAS);
-	msr.lo &= ~0xf;
-	msr.lo |= policy & 0xf;
-	wrmsr(IA32_ENERGY_PERF_BIAS, msr);
-}
-
 static void configure_c_states(void)
 {
 	msr_t msr;
diff --git a/src/soc/intel/cannonlake/include/soc/msr.h b/src/soc/intel/cannonlake/include/soc/msr.h
index 57d109b318..1c902d5abb 100644
--- a/src/soc/intel/cannonlake/include/soc/msr.h
+++ b/src/soc/intel/cannonlake/include/soc/msr.h
@@ -5,7 +5,6 @@
 
 #include <intelblocks/msr.h>
 
-#define MSR_PIC_MSG_CONTROL		0x2e
 #define MSR_VR_CURRENT_CONFIG		0x601
 #define MSR_PL3_CONTROL			0x615
 #define MSR_VR_MISC_CONFIG2		0x636
diff --git a/src/soc/intel/denverton_ns/include/soc/msr.h b/src/soc/intel/denverton_ns/include/soc/msr.h
index 9199689ed7..1f64235a14 100644
--- a/src/soc/intel/denverton_ns/include/soc/msr.h
+++ b/src/soc/intel/denverton_ns/include/soc/msr.h
@@ -3,7 +3,6 @@
 #ifndef _DENVERTON_NS_MSR_H_
 #define _DENVERTON_NS_MSR_H_
 
-#define MSR_PIC_MSG_CONTROL 0x2e
 #define MSR_CORE_THREAD_COUNT 0x35
 #define MSR_PLATFORM_INFO 0xce
 #define PLATFORM_INFO_SET_TDP (1 << 29)
diff --git a/src/soc/intel/elkhartlake/cpu.c b/src/soc/intel/elkhartlake/cpu.c
index 271d244db9..c51f3fa550 100644
--- a/src/soc/intel/elkhartlake/cpu.c
+++ b/src/soc/intel/elkhartlake/cpu.c
@@ -4,6 +4,7 @@
 #include <console/console.h>
 #include <cpu/intel/smm_reloc.h>
 #include <cpu/intel/turbo.h>
+#include <cpu/intel/common/common.h>
 #include <cpu/x86/lapic.h>
 #include <cpu/x86/mp.h>
 #include <cpu/x86/msr.h>
@@ -80,29 +81,6 @@ static void configure_misc(void)
 	wrmsr(MSR_POWER_CTL, msr);
 }
 
-static void enable_lapic_tpr(void)
-{
-	msr_t msr;
-
-	msr = rdmsr(MSR_PIC_MSG_CONTROL);
-	msr.lo &= ~(1 << 10);	/* Enable APIC TPR updates */
-	wrmsr(MSR_PIC_MSG_CONTROL, msr);
-}
-
-static void configure_dca_cap(void)
-{
-	uint32_t feature_flag;
-	msr_t msr;
-
-	/* Check feature flag in CPUID.(EAX=1):ECX[18]==1 */
-	feature_flag = cpu_get_feature_flags_ecx();
-	if (feature_flag & CPUID_DCA) {
-		msr = rdmsr(IA32_PLATFORM_DCA_CAP);
-		msr.lo |= 1;
-		wrmsr(IA32_PLATFORM_DCA_CAP, msr);
-	}
-}
-
 static void enable_pm_timer_emulation(void)
 {
 	msr_t msr;
@@ -122,23 +100,6 @@ static void enable_pm_timer_emulation(void)
 	wrmsr(MSR_EMULATE_PM_TIMER, msr);
 }
 
-static void set_energy_perf_bias(u8 policy)
-{
-	msr_t msr;
-	int ecx;
-
-	/* Determine if energy efficient policy is supported. */
-	ecx = cpuid_ecx(0x6);
-	if (!(ecx & (1 << 3)))
-		return;
-
-	/* Energy Policy is bits 3:0 */
-	msr = rdmsr(IA32_ENERGY_PERF_BIAS);
-	msr.lo &= ~0xf;
-	msr.lo |= policy & 0xf;
-	wrmsr(IA32_ENERGY_PERF_BIAS, msr);
-}
-
 /* All CPUs including BSP will run the following function. */
 void soc_core_init(struct device *cpu)
 {
diff --git a/src/soc/intel/elkhartlake/include/soc/msr.h b/src/soc/intel/elkhartlake/include/soc/msr.h
index 67e09dcf41..954fce0a82 100644
--- a/src/soc/intel/elkhartlake/include/soc/msr.h
+++ b/src/soc/intel/elkhartlake/include/soc/msr.h
@@ -5,7 +5,6 @@
 
 #include <intelblocks/msr.h>
 
-#define MSR_PIC_MSG_CONTROL		0x2e
 #define MSR_VR_MISC_CONFIG2		0x636
 
 #endif
diff --git a/src/soc/intel/icelake/Kconfig b/src/soc/intel/icelake/Kconfig
index 21da528daa..57367495ad 100644
--- a/src/soc/intel/icelake/Kconfig
+++ b/src/soc/intel/icelake/Kconfig
@@ -32,6 +32,7 @@ config CPU_SPECIFIC_OPTIONS
 	select REG_SCRIPT
 	select PMC_GLOBAL_RESET_ENABLE_LOCK
 	select PMC_LOW_POWER_MODE_PROGRAM
+	select CPU_INTEL_COMMON
 	select CPU_INTEL_COMMON_SMM
 	select SOC_INTEL_COMMON
 	select SOC_INTEL_COMMON_ACPI_WAKE_SOURCE
diff --git a/src/soc/intel/icelake/cpu.c b/src/soc/intel/icelake/cpu.c
index e76f61fa99..b739d74db6 100644
--- a/src/soc/intel/icelake/cpu.c
+++ b/src/soc/intel/icelake/cpu.c
@@ -8,6 +8,7 @@
 #include <cpu/x86/msr.h>
 #include <cpu/intel/smm_reloc.h>
 #include <cpu/intel/turbo.h>
+#include <cpu/intel/common/common.h>
 #include <fsp/api.h>
 #include <intelblocks/cpulib.h>
 #include <intelblocks/mp_init.h>
@@ -80,29 +81,6 @@ static void configure_misc(void)
 	wrmsr(MSR_POWER_CTL, msr);
 }
 
-static void enable_lapic_tpr(void)
-{
-	msr_t msr;
-
-	msr = rdmsr(MSR_PIC_MSG_CONTROL);
-	msr.lo &= ~(1 << 10);	/* Enable APIC TPR updates */
-	wrmsr(MSR_PIC_MSG_CONTROL, msr);
-}
-
-static void configure_dca_cap(void)
-{
-	uint32_t feature_flag;
-	msr_t msr;
-
-	/* Check feature flag in CPUID.(EAX=1):ECX[18]==1 */
-	feature_flag = cpu_get_feature_flags_ecx();
-	if (feature_flag & CPUID_DCA) {
-		msr = rdmsr(IA32_PLATFORM_DCA_CAP);
-		msr.lo |= 1;
-		wrmsr(IA32_PLATFORM_DCA_CAP, msr);
-	}
-}
-
 static void enable_pm_timer_emulation(void)
 {
 	msr_t msr;
@@ -122,23 +100,6 @@ static void enable_pm_timer_emulation(void)
 	wrmsr(MSR_EMULATE_PM_TIMER, msr);
 }
 
-static void set_energy_perf_bias(u8 policy)
-{
-	msr_t msr;
-	int ecx;
-
-	/* Determine if energy efficient policy is supported. */
-	ecx = cpuid_ecx(0x6);
-	if (!(ecx & (1 << 3)))
-		return;
-
-	/* Energy Policy is bits 3:0 */
-	msr = rdmsr(IA32_ENERGY_PERF_BIAS);
-	msr.lo &= ~0xf;
-	msr.lo |= policy & 0xf;
-	wrmsr(IA32_ENERGY_PERF_BIAS, msr);
-}
-
 static void configure_c_states(void)
 {
 	msr_t msr;
diff --git a/src/soc/intel/icelake/include/soc/msr.h b/src/soc/intel/icelake/include/soc/msr.h
index 67e09dcf41..954fce0a82 100644
--- a/src/soc/intel/icelake/include/soc/msr.h
+++ b/src/soc/intel/icelake/include/soc/msr.h
@@ -5,7 +5,6 @@
 
 #include <intelblocks/msr.h>
 
-#define MSR_PIC_MSG_CONTROL		0x2e
 #define MSR_VR_MISC_CONFIG2		0x636
 
 #endif
diff --git a/src/soc/intel/jasperlake/cpu.c b/src/soc/intel/jasperlake/cpu.c
index 1944e5c269..6f071c33f9 100644
--- a/src/soc/intel/jasperlake/cpu.c
+++ b/src/soc/intel/jasperlake/cpu.c
@@ -8,6 +8,7 @@
 #include <cpu/x86/msr.h>
 #include <cpu/intel/smm_reloc.h>
 #include <cpu/intel/turbo.h>
+#include <cpu/intel/common/common.h>
 #include <fsp/api.h>
 #include <intelblocks/cpulib.h>
 #include <intelblocks/mp_init.h>
@@ -80,29 +81,6 @@ static void configure_misc(void)
 	wrmsr(MSR_POWER_CTL, msr);
 }
 
-static void enable_lapic_tpr(void)
-{
-	msr_t msr;
-
-	msr = rdmsr(MSR_PIC_MSG_CONTROL);
-	msr.lo &= ~(1 << 10);	/* Enable APIC TPR updates */
-	wrmsr(MSR_PIC_MSG_CONTROL, msr);
-}
-
-static void configure_dca_cap(void)
-{
-	uint32_t feature_flag;
-	msr_t msr;
-
-	/* Check feature flag in CPUID.(EAX=1):ECX[18]==1 */
-	feature_flag = cpu_get_feature_flags_ecx();
-	if (feature_flag & CPUID_DCA) {
-		msr = rdmsr(IA32_PLATFORM_DCA_CAP);
-		msr.lo |= 1;
-		wrmsr(IA32_PLATFORM_DCA_CAP, msr);
-	}
-}
-
 static void enable_pm_timer_emulation(void)
 {
 	msr_t msr;
@@ -122,23 +100,6 @@ static void enable_pm_timer_emulation(void)
 	wrmsr(MSR_EMULATE_PM_TIMER, msr);
 }
 
-static void set_energy_perf_bias(u8 policy)
-{
-	msr_t msr;
-	int ecx;
-
-	/* Determine if energy efficient policy is supported. */
-	ecx = cpuid_ecx(0x6);
-	if (!(ecx & (1 << 3)))
-		return;
-
-	/* Energy Policy is bits 3:0 */
-	msr = rdmsr(IA32_ENERGY_PERF_BIAS);
-	msr.lo &= ~0xf;
-	msr.lo |= policy & 0xf;
-	wrmsr(IA32_ENERGY_PERF_BIAS, msr);
-}
-
 /* All CPUs including BSP will run the following function. */
 void soc_core_init(struct device *cpu)
 {
diff --git a/src/soc/intel/jasperlake/include/soc/msr.h b/src/soc/intel/jasperlake/include/soc/msr.h
index 67e09dcf41..954fce0a82 100644
--- a/src/soc/intel/jasperlake/include/soc/msr.h
+++ b/src/soc/intel/jasperlake/include/soc/msr.h
@@ -5,7 +5,6 @@
 
 #include <intelblocks/msr.h>
 
-#define MSR_PIC_MSG_CONTROL		0x2e
 #define MSR_VR_MISC_CONFIG2		0x636
 
 #endif
diff --git a/src/soc/intel/skylake/cpu.c b/src/soc/intel/skylake/cpu.c
index e716c66620..fcec0cefba 100644
--- a/src/soc/intel/skylake/cpu.c
+++ b/src/soc/intel/skylake/cpu.c
@@ -83,48 +83,6 @@ static void configure_misc(void)
 	wrmsr(MSR_POWER_CTL, msr);
 }
 
-static void enable_lapic_tpr(void)
-{
-	msr_t msr;
-
-	msr = rdmsr(MSR_PIC_MSG_CONTROL);
-	msr.lo &= ~(1 << 10);	/* Enable APIC TPR updates */
-	wrmsr(MSR_PIC_MSG_CONTROL, msr);
-}
-
-static void configure_dca_cap(void)
-{
-	uint32_t feature_flag;
-	msr_t msr;
-
-	/* Check feature flag in CPUID.(EAX=1):ECX[18]==1 */
-	feature_flag = cpu_get_feature_flags_ecx();
-	if (feature_flag & CPUID_DCA) {
-		msr = rdmsr(IA32_PLATFORM_DCA_CAP);
-		msr.lo |= 1;
-		wrmsr(IA32_PLATFORM_DCA_CAP, msr);
-	}
-}
-
-static void set_energy_perf_bias(u8 policy)
-{
-	msr_t msr;
-	int ecx;
-
-	/* Determine if energy efficient policy is supported. */
-	ecx = cpuid_ecx(0x6);
-	if (!(ecx & (1 << 3)))
-		return;
-
-	/* Energy Policy is bits 3:0 */
-	msr = rdmsr(IA32_ENERGY_PERF_BIAS);
-	msr.lo &= ~0xf;
-	msr.lo |= policy & 0xf;
-	wrmsr(IA32_ENERGY_PERF_BIAS, msr);
-
-	printk(BIOS_DEBUG, "cpu: energy policy set to %u\n", policy);
-}
-
 static void configure_c_states(void)
 {
 	msr_t msr;
diff --git a/src/soc/intel/skylake/include/soc/msr.h b/src/soc/intel/skylake/include/soc/msr.h
index 3ef9da2a15..92e8215567 100644
--- a/src/soc/intel/skylake/include/soc/msr.h
+++ b/src/soc/intel/skylake/include/soc/msr.h
@@ -5,7 +5,6 @@
 
 #include <intelblocks/msr.h>
 
-#define MSR_PIC_MSG_CONTROL		0x2e
 #define MSR_LT_LOCK_MEMORY		0x2e7
 #define MSR_UNCORE_PRMRR_PHYS_BASE	0x2f4
 #define MSR_UNCORE_PRMRR_PHYS_MASK	0x2f5
diff --git a/src/soc/intel/tigerlake/cpu.c b/src/soc/intel/tigerlake/cpu.c
index 1a5165d1e5..e13712d05f 100644
--- a/src/soc/intel/tigerlake/cpu.c
+++ b/src/soc/intel/tigerlake/cpu.c
@@ -14,6 +14,7 @@
 #include <cpu/x86/msr.h>
 #include <cpu/intel/smm_reloc.h>
 #include <cpu/intel/turbo.h>
+#include <cpu/intel/common/common.h>
 #include <fsp/api.h>
 #include <intelblocks/cpulib.h>
 #include <intelblocks/mp_init.h>
@@ -86,29 +87,6 @@ static void configure_misc(void)
 	wrmsr(MSR_POWER_CTL, msr);
 }
 
-static void enable_lapic_tpr(void)
-{
-	msr_t msr;
-
-	msr = rdmsr(MSR_PIC_MSG_CONTROL);
-	msr.lo &= ~(1 << 10);	/* Enable APIC TPR updates */
-	wrmsr(MSR_PIC_MSG_CONTROL, msr);
-}
-
-static void configure_dca_cap(void)
-{
-	uint32_t feature_flag;
-	msr_t msr;
-
-	/* Check feature flag in CPUID.(EAX=1):ECX[18]==1 */
-	feature_flag = cpu_get_feature_flags_ecx();
-	if (feature_flag & CPUID_DCA) {
-		msr = rdmsr(IA32_PLATFORM_DCA_CAP);
-		msr.lo |= 1;
-		wrmsr(IA32_PLATFORM_DCA_CAP, msr);
-	}
-}
-
 static void enable_pm_timer_emulation(void)
 {
 	msr_t msr;
@@ -128,23 +106,6 @@ static void enable_pm_timer_emulation(void)
 	wrmsr(MSR_EMULATE_PM_TIMER, msr);
 }
 
-static void set_energy_perf_bias(u8 policy)
-{
-	msr_t msr;
-	int ecx;
-
-	/* Determine if energy efficient policy is supported. */
-	ecx = cpuid_ecx(0x6);
-	if (!(ecx & (1 << 3)))
-		return;
-
-	/* Energy Policy is bits 3:0 */
-	msr = rdmsr(IA32_ENERGY_PERF_BIAS);
-	msr.lo &= ~0xf;
-	msr.lo |= policy & 0xf;
-	wrmsr(IA32_ENERGY_PERF_BIAS, msr);
-}
-
 /* All CPUs including BSP will run the following function. */
 void soc_core_init(struct device *cpu)
 {
diff --git a/src/soc/intel/tigerlake/include/soc/msr.h b/src/soc/intel/tigerlake/include/soc/msr.h
index 67e09dcf41..954fce0a82 100644
--- a/src/soc/intel/tigerlake/include/soc/msr.h
+++ b/src/soc/intel/tigerlake/include/soc/msr.h
@@ -5,7 +5,6 @@
 
 #include <intelblocks/msr.h>
 
-#define MSR_PIC_MSG_CONTROL		0x2e
 #define MSR_VR_MISC_CONFIG2		0x636
 
 #endif
-- 
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