soc/intel/xeon_sp: Call common soc_get_num_cpus()

Use a common function to get the number of CPUs for each soc. This
removes a #if for different function names in the common code.

Change-Id: I3348d37fcae72247731e465ec2a65d9583a2f180
Signed-off-by: Marc Jones <marcjones@sysproconsulting.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46970
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/soc/intel/xeon_sp/cpx/include/soc/soc_util.h

@@ -19,7 +19,7 @@ void get_core_thread_bits(uint32_t *core_bits, uint32_t *thread_bits);
 void get_cpu_info_from_apicid(uint32_t apicid, uint32_t core_bits, uint32_t thread_bits,
 	uint8_t *package, uint8_t *core, uint8_t *thread);
 /* Return socket count, as obtained from FSP HOB */
-unsigned int xeon_sp_get_socket_count(void);
+unsigned int soc_get_num_cpus(void);
 
 int get_platform_thread_count(void);
 int get_threads_per_package(void);

src/soc/intel/xeon_sp/cpx/soc_util.c

@@ -22,7 +22,7 @@ int get_threads_per_package(void)
 
 int get_platform_thread_count(void)
 {
-	return xeon_sp_get_socket_count() * get_threads_per_package();
+	return soc_get_num_cpus() * get_threads_per_package();
 }
 
 const struct SystemMemoryMapHob *get_system_memory_map(void)
@@ -86,7 +86,7 @@ const IIO_UDS *get_iio_uds(void)
 	return hob;
 }
 
-unsigned int xeon_sp_get_socket_count(void)
+unsigned int soc_get_num_cpus(void)
 {
 	/* The FSP IIO UDS HOB has field numCpus, it is actually socket count */
 	return get_iio_uds()->SystemStatus.numCpus;
@@ -119,7 +119,7 @@ void xeonsp_init_cpu_config(void)
 	if (num_apics > 1)
 		bubblesort(apic_ids, num_apics, NUM_ASCENDING);
 
-	num_sockets = xeon_sp_get_socket_count();
+	num_sockets = soc_get_num_cpus();
 	cpu_read_topology(&core_count, &thread_count);
 	assert(num_apics == (num_sockets * thread_count));
 
@@ -310,7 +310,7 @@ void set_bios_init_completion(void)
 	 * to receive the BIOS init completion message. So, we send it to all non-SBSP
 	 * sockets first.
 	 */
-	for (uint32_t socket = 0; socket < xeon_sp_get_socket_count(); ++socket) {
+	for (uint32_t socket = 0; socket < soc_get_num_cpus(); ++socket) {
 		if (socket == sbsp_socket_id)
 			continue;
 		set_bios_init_completion_for_package(socket);

src/soc/intel/xeon_sp/nb_acpi.c

@@ -121,13 +121,7 @@ static unsigned long acpi_fill_srat(unsigned long current)
 
 static unsigned long acpi_fill_slit(unsigned long current)
 {
-#if (CONFIG(SOC_INTEL_COOPERLAKE_SP))
-	unsigned int nodes = xeon_sp_get_socket_count();
-#endif /* SOC_INTEL_COOPERLAKE_SP */
-
-#if (CONFIG(SOC_INTEL_SKYLAKE_SP))
-	int nodes = get_cpu_count();
-#endif /* SOC_INTEL_SKYLAKE_SP */
+	unsigned int nodes = soc_get_num_cpus();
 
 	uint8_t *p = (uint8_t *)current;
 	memset(p, 0, 8 + nodes * nodes);

src/soc/intel/xeon_sp/skx/include/soc/cpu.h

@@ -14,7 +14,6 @@
 /* CPU bus clock is fixed at 100MHz */
 #define CPU_BCLK 100
 
-int get_cpu_count(void);
 void xeon_sp_init_cpus(struct device *dev);
 
 #endif

src/soc/intel/xeon_sp/skx/include/soc/soc_util.h

@@ -26,5 +26,6 @@ int get_threads_per_package(void);
 const struct SystemMemoryMapHob *get_system_memory_map(void);
 
 void set_bios_init_completion(void);
+unsigned int soc_get_num_cpus(void);
 
 #endif /* _SOC_UTIL_H_ */

src/soc/intel/xeon_sp/skx/soc_util.c

@@ -264,7 +264,7 @@ void get_cpu_info_from_apicid(uint32_t apicid, uint32_t core_bits, uint32_t thre
 		*thread = (uint32_t)(apicid & ~((~0) << thread_bits));
 }
 
-int get_cpu_count(void)
+unsigned int soc_get_num_cpus(void)
 {
 	size_t hob_size;
 	const uint8_t fsp_hob_iio_universal_data_guid[16] = FSP_HOB_IIO_UNIVERSAL_DATA_GUID;
@@ -285,7 +285,7 @@ int get_threads_per_package(void)
 
 int get_platform_thread_count(void)
 {
-	return get_cpu_count() * get_threads_per_package();
+	return soc_get_num_cpus() * get_threads_per_package();
 }
 
 uint8_t get_iiostack_info(struct iiostack_resource *info)
@@ -353,7 +353,7 @@ void xeonsp_init_cpu_config(void)
 	if (num_apics > 1)
 		bubblesort(apic_ids, num_apics, NUM_ASCENDING);
 
-	num_cpus = get_cpu_count();
+	num_cpus = soc_get_num_cpus();
 	cpu_read_topology(&core_count, &thread_count);
 	assert(num_apics == (num_cpus * thread_count));