From 18960ce0c96ebb20c5d7664f6d5ca9d729adea4b Mon Sep 17 00:00:00 2001 From: Marc Jones Date: Mon, 2 Nov 2020 12:41:12 -0700 Subject: soc/intel/xeon_sp: Move CPU helper functions Continue Xeon-SP de-duplication. Move CPU helper functions from skx/ and cpx soc_util.c to common util.c. Functions only used by util.c are updated to be static. The following functions are moved: int get_threads_per_package(void); int get_platform_thread_count(void); const IIO_UDS *get_iio_uds(void); unsigned int soc_get_num_cpus(void); 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); void xeonsp_init_cpu_config(void); Change-Id: I118a451b9468459cf2c2194f31da1055e1435ebe Signed-off-by: Marc Jones Reviewed-on: https://review.coreboot.org/c/coreboot/+/47170 Reviewed-by: Arthur Heymans Reviewed-by: Jay Talbott Reviewed-by: Stefan Reinauer Tested-by: build bot (Jenkins) --- src/soc/intel/xeon_sp/skx/include/soc/soc_util.h | 9 -- src/soc/intel/xeon_sp/skx/soc_util.c | 126 ----------------------- 2 files changed, 135 deletions(-) (limited to 'src/soc/intel/xeon_sp/skx') diff --git a/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h b/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h index cce542a1d5..fd0d4e2fbb 100644 --- a/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h +++ b/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h @@ -13,20 +13,11 @@ struct iiostack_resource { uint8_t get_iiostack_info(struct iiostack_resource *info); -void xeonsp_init_cpu_config(void); - void config_reset_cpl3_csrs(void); -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); - -int get_platform_thread_count(void); -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); int soc_get_stack_for_port(int port); #endif /* _SOC_UTIL_H_ */ diff --git a/src/soc/intel/xeon_sp/skx/soc_util.c b/src/soc/intel/xeon_sp/skx/soc_util.c index 3af6483dfe..5a2b3c6ca5 100644 --- a/src/soc/intel/xeon_sp/skx/soc_util.c +++ b/src/soc/intel/xeon_sp/skx/soc_util.c @@ -1,7 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ #include -#include #include #include #include @@ -230,64 +229,6 @@ void set_bios_init_completion(void) set_bios_init_completion_for_package(sbsp_socket_id); } -void get_core_thread_bits(uint32_t *core_bits, uint32_t *thread_bits) -{ - register int ecx; - struct cpuid_result cpuid_regs; - - /* get max index of CPUID */ - cpuid_regs = cpuid(0); - assert(cpuid_regs.eax >= 0xb); /* cpuid_regs.eax is max input value for cpuid */ - - *thread_bits = *core_bits = 0; - ecx = 0; - while (1) { - cpuid_regs = cpuid_ext(0xb, ecx); - if (ecx == 0) { - *thread_bits = (cpuid_regs.eax & 0x1f); - } else { - *core_bits = (cpuid_regs.eax & 0x1f) - *thread_bits; - break; - } - ecx++; - } -} - -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) -{ - if (package != NULL) - *package = (apicid >> (thread_bits + core_bits)); - if (core != NULL) - *core = (uint32_t)((apicid >> thread_bits) & ~((~0) << core_bits)); - if (thread != NULL) - *thread = (uint32_t)(apicid & ~((~0) << thread_bits)); -} - -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; - const IIO_UDS *hob; - - /* these fields are incorrect - need debugging */ - hob = fsp_find_extension_hob_by_guid(fsp_hob_iio_universal_data_guid, &hob_size); - assert(hob != NULL && hob_size != 0); - return hob->SystemStatus.numCpus; -} - -int get_threads_per_package(void) -{ - unsigned int core_count, thread_count; - cpu_read_topology(&core_count, &thread_count); - return thread_count; -} - -int get_platform_thread_count(void) -{ - return soc_get_num_cpus() * get_threads_per_package(); -} - uint8_t get_iiostack_info(struct iiostack_resource *info) { size_t hob_size; @@ -327,73 +268,6 @@ const struct SystemMemoryMapHob *get_system_memory_map(void) return memmap_addr; } -void xeonsp_init_cpu_config(void) -{ - struct device *dev; - int apic_ids[CONFIG_MAX_CPUS] = {0}, apic_ids_by_thread[CONFIG_MAX_CPUS] = {0}; - int num_apics = 0; - uint32_t core_bits, thread_bits; - unsigned int core_count, thread_count; - unsigned int num_cpus; - - /* sort APIC ids in asending order to identify apicid ranges for - each numa domain - */ - for (dev = all_devices; dev; dev = dev->next) { - if ((dev->path.type != DEVICE_PATH_APIC) || - (dev->bus->dev->path.type != DEVICE_PATH_CPU_CLUSTER)) { - continue; - } - if (!dev->enabled) - continue; - if (num_apics >= ARRAY_SIZE(apic_ids)) - break; - apic_ids[num_apics++] = dev->path.apic.apic_id; - } - if (num_apics > 1) - bubblesort(apic_ids, num_apics, NUM_ASCENDING); - - num_cpus = soc_get_num_cpus(); - cpu_read_topology(&core_count, &thread_count); - assert(num_apics == (num_cpus * thread_count)); - - /* sort them by thread i.e., all cores with thread 0 and then thread 1 */ - int index = 0; - for (int id = 0; id < num_apics; ++id) { - int apic_id = apic_ids[id]; - if (apic_id & 0x1) { /* 2nd thread */ - apic_ids_by_thread[index + (num_apics/2) - 1] = apic_id; - } else { /* 1st thread */ - apic_ids_by_thread[index++] = apic_id; - } - } - - /* update apic_id, node_id in sorted order */ - num_apics = 0; - get_core_thread_bits(&core_bits, &thread_bits); - for (dev = all_devices; dev; dev = dev->next) { - uint8_t package; - - if ((dev->path.type != DEVICE_PATH_APIC) || - (dev->bus->dev->path.type != DEVICE_PATH_CPU_CLUSTER)) { - continue; - } - if (!dev->enabled) - continue; - if (num_apics >= ARRAY_SIZE(apic_ids)) - break; - dev->path.apic.apic_id = apic_ids_by_thread[num_apics]; - get_cpu_info_from_apicid(dev->path.apic.apic_id, core_bits, thread_bits, - &package, NULL, NULL); - dev->path.apic.node_id = package; - printk(BIOS_DEBUG, "CPU %d apic_id: 0x%x (%d), node_id: 0x%x\n", - num_apics, dev->path.apic.apic_id, - dev->path.apic.apic_id, dev->path.apic.node_id); - - ++num_apics; - } -} - /* * EX: SKX-SP * Ports Stack Stack(HOB) IioConfigIou -- cgit v1.2.3