src/soc/intel/xeon_sp/skx: Update get_iiostack_info()

Add Pci64BitResourceAllocation return value to get_iiostack_info().
This matches cpx function and is used in future de-duplication.

Change-Id: I939c0101c751d9afced4ab33487958b93e59924c
Signed-off-by: Marc Jones <marcjones@sysproconsulting.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46307
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Jay Talbott <JayTalbott@sysproconsulting.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

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

@@ -11,7 +11,7 @@ struct iiostack_resource {
 	STACK_RES   res[CONFIG_MAX_SOCKET * MAX_IIO_STACK];
 };
 
-void get_iiostack_info(struct iiostack_resource *info);
+uint8_t get_iiostack_info(struct iiostack_resource *info);
 
 void xeonsp_init_cpu_config(void);
 

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

@@ -288,7 +288,7 @@ int get_platform_thread_count(void)
 	return get_cpu_count() * get_threads_per_package();
 }
 
-void get_iiostack_info(struct iiostack_resource *info)
+uint8_t get_iiostack_info(struct iiostack_resource *info)
 {
 	size_t hob_size;
 	const uint8_t fsp_hob_iio_universal_data_guid[16] = FSP_HOB_IIO_UNIVERSAL_DATA_GUID;
@@ -310,6 +310,8 @@ void get_iiostack_info(struct iiostack_resource *info)
 			memcpy(&info->res[info->no_of_stacks++], ri, sizeof(STACK_RES));
 		}
 	}
+
+	return hob->PlatformData.Pci64BitResourceAllocation;
 }
 
 #if ENV_RAMSTAGE