diff --git a/BUILD.bazel b/BUILD.bazel
index 4e3ea999..2c6375fd 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -63,6 +63,10 @@ MACH_SRCS = [
"src/mach/topology.c",
]
+FREEBSD_SRCS = [
+ "src/freebsd/topology.c",
+]
+
EMSCRIPTEN_SRCS = [
"src/emscripten/init.c",
]
@@ -112,6 +116,10 @@ MACH_ARM_SRCS = [
"src/arm/mach/init.c",
]
+FREEBSD_X86_SRCS = [
+ "src/x86/freebsd/init.c",
+]
+
EMSCRIPTEN_SRCS = [
"src/emscripten/init.c",
]
@@ -132,6 +140,7 @@ cc_library(
":macos_x86_64": COMMON_SRCS + X86_SRCS + MACH_SRCS + MACH_X86_SRCS,
":macos_x86_64_legacy": COMMON_SRCS + X86_SRCS + MACH_SRCS + MACH_X86_SRCS,
":macos_arm64": COMMON_SRCS + MACH_SRCS + MACH_ARM_SRCS,
+ ":freebsd_x86_64": COMMON_SRCS + X86_SRCS + FREEBSD_SRCS + FREEBSD_X86_SRCS,
":windows_x86_64": COMMON_SRCS + X86_SRCS + WINDOWS_X86_SRCS,
":windows_arm64": COMMON_SRCS + ARM_SRCS + WINDOWS_ARM_SRCS,
":android_armv7": COMMON_SRCS + ARM_SRCS + LINUX_SRCS + LINUX_ARM32_SRCS + ANDROID_ARM_SRCS,
@@ -175,6 +184,7 @@ cc_library(
# Headers must be in textual_hdrs to allow us to set the standard to C99
textual_hdrs = [
"include/cpuinfo.h",
+ "src/freebsd/api.h",
"src/linux/api.h",
"src/mach/api.h",
"src/cpuinfo/common.h",
@@ -463,3 +473,10 @@ config_setting(
"cpu": "asmjs",
},
)
+
+config_setting(
+ name = "freebsd_x86_64",
+ values = {
+ "cpu": "freebsd",
+ },
+)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 99047e58..b6dcb740 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -67,6 +67,9 @@ ENDIF()
# -- [ Determine target processor
SET(CPUINFO_TARGET_PROCESSOR "${CMAKE_SYSTEM_PROCESSOR}")
+IF(CPUINFO_TARGET_PROCESSOR STREQUAL "amd64")
+ SET(CPUINFO_TARGET_PROCESSOR "AMD64")
+ENDIF()
IF(IS_APPLE_OS AND CMAKE_OSX_ARCHITECTURES MATCHES "^(x86_64|arm64.*)$")
SET(CPUINFO_TARGET_PROCESSOR "${CMAKE_OSX_ARCHITECTURES}")
ELSEIF(CMAKE_GENERATOR MATCHES "^Visual Studio " AND CMAKE_VS_PLATFORM_NAME)
@@ -105,7 +108,7 @@ IF(NOT CMAKE_SYSTEM_NAME)
"Target operating system is not specified. "
"cpuinfo will compile, but cpuinfo_initialize() will always fail.")
SET(CPUINFO_SUPPORTED_PLATFORM FALSE)
-ELSEIF(NOT CMAKE_SYSTEM_NAME MATCHES "^(Windows|WindowsStore|CYGWIN|MSYS|Darwin|Linux|Android)$")
+ELSEIF(NOT CMAKE_SYSTEM_NAME MATCHES "^(Windows|WindowsStore|CYGWIN|MSYS|Darwin|Linux|Android|FreeBSD)$")
IF(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.14" AND NOT IS_APPLE_OS)
MESSAGE(WARNING
"Target operating system \"${CMAKE_SYSTEM_NAME}\" is not supported in cpuinfo. "
@@ -178,6 +181,8 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
LIST(APPEND CPUINFO_SRCS src/x86/mach/init.c)
ELSEIF(CMAKE_SYSTEM_NAME MATCHES "^(Windows|WindowsStore|CYGWIN|MSYS)$")
LIST(APPEND CPUINFO_SRCS src/x86/windows/init.c)
+ ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+ LIST(APPEND CPUINFO_SRCS src/x86/freebsd/init.c)
ENDIF()
ELSEIF(CMAKE_SYSTEM_NAME MATCHES "^Windows" AND CPUINFO_TARGET_PROCESSOR MATCHES "^(ARM64|arm64)$")
LIST(APPEND CPUINFO_SRCS
@@ -234,9 +239,11 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
src/linux/processors.c)
ELSEIF(IS_APPLE_OS)
LIST(APPEND CPUINFO_SRCS src/mach/topology.c)
+ ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+ LIST(APPEND CPUINFO_SRCS src/freebsd/topology.c)
ENDIF()
- IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android")
+ IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
SET(CMAKE_THREAD_PREFER_PTHREAD TRUE)
SET(THREADS_PREFER_PTHREAD_FLAG TRUE)
FIND_PACKAGE(Threads REQUIRED)
@@ -301,6 +308,9 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
TARGET_LINK_LIBRARIES(cpuinfo_internals PUBLIC ${CMAKE_THREAD_LIBS_INIT})
TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE _GNU_SOURCE=1)
TARGET_COMPILE_DEFINITIONS(cpuinfo_internals PRIVATE _GNU_SOURCE=1)
+ ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+ TARGET_LINK_LIBRARIES(cpuinfo PUBLIC ${CMAKE_THREAD_LIBS_INIT})
+ TARGET_LINK_LIBRARIES(cpuinfo_internals PUBLIC ${CMAKE_THREAD_LIBS_INIT})
ENDIF()
ELSE()
TARGET_COMPILE_DEFINITIONS(cpuinfo INTERFACE CPUINFO_SUPPORTED_PLATFORM=0)
diff --git a/src/cpuinfo/internal-api.h b/src/cpuinfo/internal-api.h
index d566034e..d84b26a8 100644
--- a/src/cpuinfo/internal-api.h
+++ b/src/cpuinfo/internal-api.h
@@ -49,6 +49,7 @@ extern CPUINFO_INTERNAL const struct cpuinfo_core** cpuinfo_linux_cpu_to_core_ma
CPUINFO_PRIVATE void cpuinfo_x86_mach_init(void);
CPUINFO_PRIVATE void cpuinfo_x86_linux_init(void);
+CPUINFO_PRIVATE void cpuinfo_x86_freebsd_init(void);
#if defined(_WIN32) || defined(__CYGWIN__)
#if CPUINFO_ARCH_ARM64
CPUINFO_PRIVATE BOOL CALLBACK cpuinfo_arm_windows_init(PINIT_ONCE init_once, PVOID parameter, PVOID* context);
diff --git a/src/freebsd/api.h b/src/freebsd/api.h
new file mode 100644
index 00000000..d3774370
--- /dev/null
+++ b/src/freebsd/api.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#include <stdint.h>
+
+struct cpuinfo_freebsd_topology {
+ uint32_t packages;
+ uint32_t cores;
+ uint32_t threads;
+ uint32_t threads_per_core;
+};
+
+struct cpuinfo_freebsd_topology cpuinfo_freebsd_detect_topology(void);
diff --git a/src/freebsd/topology.c b/src/freebsd/topology.c
new file mode 100644
index 00000000..1885035b
--- /dev/null
+++ b/src/freebsd/topology.c
@@ -0,0 +1,110 @@
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/sysctl.h>
+#include <sys/types.h>
+
+#include <cpuinfo/log.h>
+#include <freebsd/api.h>
+
+static int sysctl_int(const char *name) {
+ int value = 0;
+ size_t value_size = sizeof(value);
+ if (sysctlbyname(name, &value, &value_size, NULL, 0) != 0) {
+ cpuinfo_log_error("sysctlbyname(\"%s\") failed: %s", name,
+ strerror(errno));
+ } else if (value <= 0) {
+ cpuinfo_log_error(
+ "sysctlbyname(\"%s\") returned invalid value %d %zu", name,
+ value, value_size);
+ value = 0;
+ }
+ return value;
+}
+
+static char *sysctl_str(const char *name) {
+ size_t value_size = 0;
+ if (sysctlbyname(name, NULL, &value_size, NULL, 0) != 0) {
+ cpuinfo_log_error("sysctlbyname(\"%s\") failed: %s", name,
+ strerror(errno));
+ } else if (value_size <= 0) {
+ cpuinfo_log_error(
+ "sysctlbyname(\"%s\") returned invalid value size %zu",
+ name, value_size);
+ }
+ value_size += 1;
+ char *value = calloc(value_size, 1);
+ if (!value) {
+ cpuinfo_log_error("calloc %zu bytes failed", value_size);
+ return NULL;
+ }
+ if (sysctlbyname(name, value, &value_size, NULL, 0) != 0) {
+ cpuinfo_log_error("sysctlbyname(\"%s\") failed: %s", name,
+ strerror(errno));
+ free(value);
+ return NULL;
+ }
+ return value;
+}
+
+struct cpuinfo_freebsd_topology cpuinfo_freebsd_detect_topology(void) {
+ struct cpuinfo_freebsd_topology topology = {
+ .packages = 0,
+ .cores = 0,
+ .threads_per_core = 0,
+ .threads = 0,
+ };
+ char *topology_spec = sysctl_str("kern.sched.topology_spec");
+ if (!topology_spec) {
+ return topology;
+ }
+ const char *group_tag = "<group level=\"1\" cache-level=\"0\">";
+ char *p = strstr(topology_spec, group_tag);
+ while (p) {
+ const char *cpu_tag = "cpu count=\"";
+ char *q = strstr(p, cpu_tag);
+ if (q) {
+ p = q + strlen(cpu_tag);
+ topology.packages += atoi(p);
+ } else {
+ break;
+ }
+ }
+ if (topology.packages == 0) {
+ const char *group_tag = "<group level=\"1\"";
+ char *p = strstr(topology_spec, group_tag);
+ while (p) {
+ topology.packages += 1;
+ p++;
+ p = strstr(p, group_tag);
+ }
+ }
+ if (topology.packages == 0) {
+ cpuinfo_log_error("failed to parse topology_spec:%s",
+ topology_spec);
+ free(topology_spec);
+ goto fail;
+ }
+ free(topology_spec);
+ topology.cores = sysctl_int("kern.smp.cores");
+ if (topology.cores == 0) {
+ goto fail;
+ }
+ if (topology.cores < topology.packages) {
+ goto fail;
+ }
+ topology.threads_per_core = sysctl_int("kern.smp.threads_per_core");
+ if (topology.threads_per_core == 0) {
+ goto fail;
+ }
+ cpuinfo_log_debug("freebsd topology: packages = %d, cores = %d, "
+ "threads_per_core = %d",
+ topology.packages, topology.cores,
+ topology.threads_per_core);
+ topology.threads = topology.threads_per_core * topology.cores;
+ return topology;
+fail:
+ topology.packages = 0;
+ return topology;
+}
diff --git a/src/init.c b/src/init.c
index 1ab9b5ac..81d5721c 100644
--- a/src/init.c
+++ b/src/init.c
@@ -24,6 +24,8 @@ bool CPUINFO_ABI cpuinfo_initialize(void) {
#if CPUINFO_ARCH_X86 || CPUINFO_ARCH_X86_64
#if defined(__MACH__) && defined(__APPLE__)
pthread_once(&init_guard, &cpuinfo_x86_mach_init);
+#elif defined(__FreeBSD__)
+ pthread_once(&init_guard, &cpuinfo_x86_freebsd_init);
#elif defined(__linux__)
pthread_once(&init_guard, &cpuinfo_x86_linux_init);
#elif defined(_WIN32) || defined(__CYGWIN__)
diff --git a/src/x86/freebsd/init.c b/src/x86/freebsd/init.c
new file mode 100644
index 00000000..d807b1ea
--- /dev/null
+++ b/src/x86/freebsd/init.c
@@ -0,0 +1,402 @@
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <cpuinfo.h>
+#include <cpuinfo/internal-api.h>
+#include <cpuinfo/log.h>
+#include <freebsd/api.h>
+#include <x86/api.h>
+
+static inline uint32_t max(uint32_t a, uint32_t b) { return a > b ? a : b; }
+
+static inline uint32_t bit_mask(uint32_t bits) {
+ return (UINT32_C(1) << bits) - UINT32_C(1);
+}
+
+void cpuinfo_x86_freebsd_init(void) {
+ struct cpuinfo_processor *processors = NULL;
+ struct cpuinfo_core *cores = NULL;
+ struct cpuinfo_cluster *clusters = NULL;
+ struct cpuinfo_package *packages = NULL;
+ struct cpuinfo_cache *l1i = NULL;
+ struct cpuinfo_cache *l1d = NULL;
+ struct cpuinfo_cache *l2 = NULL;
+ struct cpuinfo_cache *l3 = NULL;
+ struct cpuinfo_cache *l4 = NULL;
+
+ struct cpuinfo_freebsd_topology freebsd_topology =
+ cpuinfo_freebsd_detect_topology();
+ if (freebsd_topology.packages == 0) {
+ cpuinfo_log_error("failed to detect topology");
+ goto cleanup;
+ }
+ processors =
+ calloc(freebsd_topology.threads, sizeof(struct cpuinfo_processor));
+ if (processors == NULL) {
+ cpuinfo_log_error(
+ "failed to allocate %zu bytes for descriptions of %" PRIu32
+ " logical processors",
+ freebsd_topology.threads * sizeof(struct cpuinfo_processor),
+ freebsd_topology.threads);
+ goto cleanup;
+ }
+ cores = calloc(freebsd_topology.cores, sizeof(struct cpuinfo_core));
+ if (cores == NULL) {
+ cpuinfo_log_error(
+ "failed to allocate %zu bytes for descriptions of %" PRIu32
+ " cores",
+ freebsd_topology.cores * sizeof(struct cpuinfo_core),
+ freebsd_topology.cores);
+ goto cleanup;
+ }
+ /* On x86 a cluster of cores is the biggest group of cores that shares a
+ * cache. */
+ clusters =
+ calloc(freebsd_topology.packages, sizeof(struct cpuinfo_cluster));
+ if (clusters == NULL) {
+ cpuinfo_log_error(
+ "failed to allocate %zu bytes for descriptions of %" PRIu32
+ " core clusters",
+ freebsd_topology.packages * sizeof(struct cpuinfo_cluster),
+ freebsd_topology.packages);
+ goto cleanup;
+ }
+ packages =
+ calloc(freebsd_topology.packages, sizeof(struct cpuinfo_package));
+ if (packages == NULL) {
+ cpuinfo_log_error(
+ "failed to allocate %zu bytes for descriptions of %" PRIu32
+ " physical packages",
+ freebsd_topology.packages * sizeof(struct cpuinfo_package),
+ freebsd_topology.packages);
+ goto cleanup;
+ }
+
+ struct cpuinfo_x86_processor x86_processor;
+ memset(&x86_processor, 0, sizeof(x86_processor));
+ cpuinfo_x86_init_processor(&x86_processor);
+ char brand_string[48];
+ cpuinfo_x86_normalize_brand_string(x86_processor.brand_string,
+ brand_string);
+
+ const uint32_t threads_per_core = freebsd_topology.threads_per_core;
+ const uint32_t threads_per_package =
+ freebsd_topology.threads / freebsd_topology.packages;
+ const uint32_t cores_per_package =
+ freebsd_topology.cores / freebsd_topology.packages;
+ for (uint32_t i = 0; i < freebsd_topology.packages; i++) {
+ clusters[i] = (struct cpuinfo_cluster){
+ .processor_start = i * threads_per_package,
+ .processor_count = threads_per_package,
+ .core_start = i * cores_per_package,
+ .core_count = cores_per_package,
+ .cluster_id = 0,
+ .package = packages + i,
+ .vendor = x86_processor.vendor,
+ .uarch = x86_processor.uarch,
+ .cpuid = x86_processor.cpuid,
+ };
+ packages[i].processor_start = i * threads_per_package;
+ packages[i].processor_count = threads_per_package;
+ packages[i].core_start = i * cores_per_package;
+ packages[i].core_count = cores_per_package;
+ packages[i].cluster_start = i;
+ packages[i].cluster_count = 1;
+ cpuinfo_x86_format_package_name(x86_processor.vendor,
+ brand_string, packages[i].name);
+ }
+ for (uint32_t i = 0; i < freebsd_topology.cores; i++) {
+ cores[i] = (struct cpuinfo_core){
+ .processor_start = i * threads_per_core,
+ .processor_count = threads_per_core,
+ .core_id = i % cores_per_package,
+ .cluster = clusters + i / cores_per_package,
+ .package = packages + i / cores_per_package,
+ .vendor = x86_processor.vendor,
+ .uarch = x86_processor.uarch,
+ .cpuid = x86_processor.cpuid,
+ };
+ }
+ for (uint32_t i = 0; i < freebsd_topology.threads; i++) {
+ const uint32_t smt_id = i % threads_per_core;
+ const uint32_t core_id = i / threads_per_core;
+ const uint32_t package_id = i / threads_per_package;
+
+ /* Reconstruct APIC IDs from topology components */
+ const uint32_t thread_bits_mask =
+ bit_mask(x86_processor.topology.thread_bits_length);
+ const uint32_t core_bits_mask =
+ bit_mask(x86_processor.topology.core_bits_length);
+ const uint32_t package_bits_offset =
+ max(x86_processor.topology.thread_bits_offset +
+ x86_processor.topology.thread_bits_length,
+ x86_processor.topology.core_bits_offset +
+ x86_processor.topology.core_bits_length);
+ const uint32_t apic_id =
+ ((smt_id & thread_bits_mask)
+ << x86_processor.topology.thread_bits_offset) |
+ ((core_id & core_bits_mask)
+ << x86_processor.topology.core_bits_offset) |
+ (package_id << package_bits_offset);
+ cpuinfo_log_debug("reconstructed APIC ID 0x%08" PRIx32
+ " for thread %" PRIu32,
+ apic_id, i);
+
+ processors[i].smt_id = smt_id;
+ processors[i].core = cores + i / threads_per_core;
+ processors[i].cluster = clusters + i / threads_per_package;
+ processors[i].package = packages + i / threads_per_package;
+ processors[i].apic_id = apic_id;
+ }
+
+ uint32_t threads_per_l1 = 0, l1_count = 0;
+ if (x86_processor.cache.l1i.size != 0 ||
+ x86_processor.cache.l1d.size != 0) {
+ /* Assume that threads on the same core share L1 */
+ threads_per_l1 =
+ freebsd_topology.threads / freebsd_topology.cores;
+ cpuinfo_log_warning("freebsd kernel did not report number of "
+ "threads sharing L1 cache; assume %" PRIu32,
+ threads_per_l1);
+ l1_count = freebsd_topology.threads / threads_per_l1;
+ cpuinfo_log_debug("detected %" PRIu32 " L1 caches", l1_count);
+ }
+
+ uint32_t threads_per_l2 = 0, l2_count = 0;
+ if (x86_processor.cache.l2.size != 0) {
+ if (x86_processor.cache.l3.size != 0) {
+ /* This is not a last-level cache; assume that threads
+ * on the same core share L2 */
+ threads_per_l2 =
+ freebsd_topology.threads / freebsd_topology.cores;
+ } else {
+ /* This is a last-level cache; assume that threads on
+ * the same package share L2 */
+ threads_per_l2 = freebsd_topology.threads /
+ freebsd_topology.packages;
+ }
+ cpuinfo_log_warning("freebsd kernel did not report number of "
+ "threads sharing L2 cache; assume %" PRIu32,
+ threads_per_l2);
+ l2_count = freebsd_topology.threads / threads_per_l2;
+ cpuinfo_log_debug("detected %" PRIu32 " L2 caches", l2_count);
+ }
+
+ uint32_t threads_per_l3 = 0, l3_count = 0;
+ if (x86_processor.cache.l3.size != 0) {
+ /*
+ * Assume that threads on the same package share L3.
+ * However, is it not necessarily the last-level cache (there
+ * may be L4 cache as well)
+ */
+ threads_per_l3 =
+ freebsd_topology.threads / freebsd_topology.packages;
+ cpuinfo_log_warning("freebsd kernel did not report number of "
+ "threads sharing L3 cache; assume %" PRIu32,
+ threads_per_l3);
+ l3_count = freebsd_topology.threads / threads_per_l3;
+ cpuinfo_log_debug("detected %" PRIu32 " L3 caches", l3_count);
+ }
+
+ uint32_t threads_per_l4 = 0, l4_count = 0;
+ if (x86_processor.cache.l4.size != 0) {
+ /*
+ * Assume that all threads share this L4.
+ * As of now, L4 cache exists only on notebook x86 CPUs, which
+ * are single-package, but multi-socket systems could have
+ * shared L4 (like on IBM POWER8).
+ */
+ threads_per_l4 = freebsd_topology.threads;
+ cpuinfo_log_warning("freebsd kernel did not report number of "
+ "threads sharing L4 cache; assume %" PRIu32,
+ threads_per_l4);
+ l4_count = freebsd_topology.threads / threads_per_l4;
+ cpuinfo_log_debug("detected %" PRIu32 " L4 caches", l4_count);
+ }
+
+ if (x86_processor.cache.l1i.size != 0) {
+ l1i = calloc(l1_count, sizeof(struct cpuinfo_cache));
+ if (l1i == NULL) {
+ cpuinfo_log_error(
+ "failed to allocate %zu bytes for descriptions of "
+ "%" PRIu32 " L1I caches",
+ l1_count * sizeof(struct cpuinfo_cache), l1_count);
+ return;
+ }
+ for (uint32_t c = 0; c < l1_count; c++) {
+ l1i[c] = (struct cpuinfo_cache){
+ .size = x86_processor.cache.l1i.size,
+ .associativity =
+ x86_processor.cache.l1i.associativity,
+ .sets = x86_processor.cache.l1i.sets,
+ .partitions = x86_processor.cache.l1i.partitions,
+ .line_size = x86_processor.cache.l1i.line_size,
+ .flags = x86_processor.cache.l1i.flags,
+ .processor_start = c * threads_per_l1,
+ .processor_count = threads_per_l1,
+ };
+ }
+ for (uint32_t t = 0; t < freebsd_topology.threads; t++) {
+ processors[t].cache.l1i = &l1i[t / threads_per_l1];
+ }
+ }
+
+ if (x86_processor.cache.l1d.size != 0) {
+ l1d = calloc(l1_count, sizeof(struct cpuinfo_cache));
+ if (l1d == NULL) {
+ cpuinfo_log_error(
+ "failed to allocate %zu bytes for descriptions of "
+ "%" PRIu32 " L1D caches",
+ l1_count * sizeof(struct cpuinfo_cache), l1_count);
+ return;
+ }
+ for (uint32_t c = 0; c < l1_count; c++) {
+ l1d[c] = (struct cpuinfo_cache){
+ .size = x86_processor.cache.l1d.size,
+ .associativity =
+ x86_processor.cache.l1d.associativity,
+ .sets = x86_processor.cache.l1d.sets,
+ .partitions = x86_processor.cache.l1d.partitions,
+ .line_size = x86_processor.cache.l1d.line_size,
+ .flags = x86_processor.cache.l1d.flags,
+ .processor_start = c * threads_per_l1,
+ .processor_count = threads_per_l1,
+ };
+ }
+ for (uint32_t t = 0; t < freebsd_topology.threads; t++) {
+ processors[t].cache.l1d = &l1d[t / threads_per_l1];
+ }
+ }
+
+ if (l2_count != 0) {
+ l2 = calloc(l2_count, sizeof(struct cpuinfo_cache));
+ if (l2 == NULL) {
+ cpuinfo_log_error(
+ "failed to allocate %zu bytes for descriptions of "
+ "%" PRIu32 " L2 caches",
+ l2_count * sizeof(struct cpuinfo_cache), l2_count);
+ return;
+ }
+ for (uint32_t c = 0; c < l2_count; c++) {
+ l2[c] = (struct cpuinfo_cache){
+ .size = x86_processor.cache.l2.size,
+ .associativity =
+ x86_processor.cache.l2.associativity,
+ .sets = x86_processor.cache.l2.sets,
+ .partitions = x86_processor.cache.l2.partitions,
+ .line_size = x86_processor.cache.l2.line_size,
+ .flags = x86_processor.cache.l2.flags,
+ .processor_start = c * threads_per_l2,
+ .processor_count = threads_per_l2,
+ };
+ }
+ for (uint32_t t = 0; t < freebsd_topology.threads; t++) {
+ processors[t].cache.l2 = &l2[t / threads_per_l2];
+ }
+ }
+
+ if (l3_count != 0) {
+ l3 = calloc(l3_count, sizeof(struct cpuinfo_cache));
+ if (l3 == NULL) {
+ cpuinfo_log_error(
+ "failed to allocate %zu bytes for descriptions of "
+ "%" PRIu32 " L3 caches",
+ l3_count * sizeof(struct cpuinfo_cache), l3_count);
+ return;
+ }
+ for (uint32_t c = 0; c < l3_count; c++) {
+ l3[c] = (struct cpuinfo_cache){
+ .size = x86_processor.cache.l3.size,
+ .associativity =
+ x86_processor.cache.l3.associativity,
+ .sets = x86_processor.cache.l3.sets,
+ .partitions = x86_processor.cache.l3.partitions,
+ .line_size = x86_processor.cache.l3.line_size,
+ .flags = x86_processor.cache.l3.flags,
+ .processor_start = c * threads_per_l3,
+ .processor_count = threads_per_l3,
+ };
+ }
+ for (uint32_t t = 0; t < freebsd_topology.threads; t++) {
+ processors[t].cache.l3 = &l3[t / threads_per_l3];
+ }
+ }
+
+ if (l4_count != 0) {
+ l4 = calloc(l4_count, sizeof(struct cpuinfo_cache));
+ if (l4 == NULL) {
+ cpuinfo_log_error(
+ "failed to allocate %zu bytes for descriptions of "
+ "%" PRIu32 " L4 caches",
+ l4_count * sizeof(struct cpuinfo_cache), l4_count);
+ return;
+ }
+ for (uint32_t c = 0; c < l4_count; c++) {
+ l4[c] = (struct cpuinfo_cache){
+ .size = x86_processor.cache.l4.size,
+ .associativity =
+ x86_processor.cache.l4.associativity,
+ .sets = x86_processor.cache.l4.sets,
+ .partitions = x86_processor.cache.l4.partitions,
+ .line_size = x86_processor.cache.l4.line_size,
+ .flags = x86_processor.cache.l4.flags,
+ .processor_start = c * threads_per_l4,
+ .processor_count = threads_per_l4,
+ };
+ }
+ for (uint32_t t = 0; t < freebsd_topology.threads; t++) {
+ processors[t].cache.l4 = &l4[t / threads_per_l4];
+ }
+ }
+
+ /* Commit changes */
+ cpuinfo_processors = processors;
+ cpuinfo_cores = cores;
+ cpuinfo_clusters = clusters;
+ cpuinfo_packages = packages;
+ cpuinfo_cache[cpuinfo_cache_level_1i] = l1i;
+ cpuinfo_cache[cpuinfo_cache_level_1d] = l1d;
+ cpuinfo_cache[cpuinfo_cache_level_2] = l2;
+ cpuinfo_cache[cpuinfo_cache_level_3] = l3;
+ cpuinfo_cache[cpuinfo_cache_level_4] = l4;
+
+ cpuinfo_processors_count = freebsd_topology.threads;
+ cpuinfo_cores_count = freebsd_topology.cores;
+ cpuinfo_clusters_count = freebsd_topology.packages;
+ cpuinfo_packages_count = freebsd_topology.packages;
+ cpuinfo_cache_count[cpuinfo_cache_level_1i] = l1_count;
+ cpuinfo_cache_count[cpuinfo_cache_level_1d] = l1_count;
+ cpuinfo_cache_count[cpuinfo_cache_level_2] = l2_count;
+ cpuinfo_cache_count[cpuinfo_cache_level_3] = l3_count;
+ cpuinfo_cache_count[cpuinfo_cache_level_4] = l4_count;
+ cpuinfo_max_cache_size = cpuinfo_compute_max_cache_size(&processors[0]);
+
+ cpuinfo_global_uarch = (struct cpuinfo_uarch_info){
+ .uarch = x86_processor.uarch,
+ .cpuid = x86_processor.cpuid,
+ .processor_count = freebsd_topology.threads,
+ .core_count = freebsd_topology.cores,
+ };
+
+ __sync_synchronize();
+
+ cpuinfo_is_initialized = true;
+
+ processors = NULL;
+ cores = NULL;
+ clusters = NULL;
+ packages = NULL;
+ l1i = l1d = l2 = l3 = l4 = NULL;
+
+cleanup:
+ free(processors);
+ free(cores);
+ free(clusters);
+ free(packages);
+ free(l1i);
+ free(l1d);
+ free(l2);
+ free(l3);
+ free(l4);
+}