Change in coreboot[master]: soc/intel/alderlake: Define the helper functions

[Sridhar Siricilla (Code Review)]

Attention is currently required from: Tim Wawrzynczak, Patrick Rudolph.
Sridhar Siricilla has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/59362 )

Change subject: soc/intel/alderlake: Define the helper functions
......................................................................

soc/intel/alderlake: Define the helper functions

The patch defines following helper functions:

get_cpu_scaling_factor(): Returns scaling factors of big and small core.
cpu_is_nominal_freq_supported(): Returns TRUE if cpu supports Nominal
Frequency, otherwise FASLE.
get_cpu_type(): It returns type of core that is executing the function.

TEST=Verified on Brya

Signed-off-by: Sridahr Siricilla 
Change-Id: I963690a4fadad322095d202bcc08c92dcd845360
---
M src/soc/intel/alderlake/acpi.c
M src/soc/intel/alderlake/cpu.c
M src/soc/intel/alderlake/include/soc/cpu.h
3 files changed, 21 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/62/59362/1

diff --git a/src/soc/intel/alderlake/acpi.c b/src/soc/intel/alderlake/acpi.c
index ab25646..0e13b32 100644
--- a/src/soc/intel/alderlake/acpi.c
+++ b/src/soc/intel/alderlake/acpi.c
@@ -278,6 +278,10 @@

/* Fill in Above 4GB MMIO resource */
    sa_fill_gnvs(gnvs);
+
+	/* Fill core info */
+	if (CONFIG(SOC_INTEL_COMMON_BLOCK_ACPI_CPU_HYBRID))
+		core_fill_gnvs(gnvs);
 }

int soc_madt_sci_irq_polarity(int sci)
diff --git a/src/soc/intel/alderlake/cpu.c b/src/soc/intel/alderlake/cpu.c
index be8b011..259374e 100644
--- a/src/soc/intel/alderlake/cpu.c
+++ b/src/soc/intel/alderlake/cpu.c
@@ -87,6 +87,17 @@
    	return CPUID_CORE_TYPE_INTEL_CORE;
 }

+void get_cpu_scaling_factor(uint16_t *big_core_scal_factor, uint16_t *small_core_scal_factor)
+{
+	*big_core_scal_factor = 1.27;
+	*small_core_scal_factor = 1;
+}
+
+bool cpu_is_nominal_freq_supported(void)
+{
+	return TRUE;
+}
+
 /* 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/cpu.h b/src/soc/intel/alderlake/include/soc/cpu.h
index 06b44a2..24428fd 100644
--- a/src/soc/intel/alderlake/include/soc/cpu.h
+++ b/src/soc/intel/alderlake/include/soc/cpu.h
@@ -33,4 +33,10 @@

/* It returns the cpu type - big or small core */
 uint8_t get_cpu_type(void);
+
+/* Get scaling factors for big and small cores */
+void get_cpu_scaling_factor(uint16_t *big_core_scal_factor, uint16_t *small_core_scale_factor);
+
+/* Check cpu supports Nominal Frequency or not */
+bool cpu_is_nominal_freq_supported(void);
 #endif