/* * Copyright (c) 2016 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include #include #define foreach_x86_cpu_uarch \ _ (0x06, 0x9e, "Kaby Lake", "Kaby Lake DT/H/S/X") \ _ (0x06, 0x9c, "Tremont", "Jasper Lake") \ _ (0x06, 0x9a, "Alder Lake", "Alder Lake L") \ _ (0x06, 0x97, "Alder Lake", "Alder Lake") \ _ (0x06, 0x96, "Tremont", "Elkhart Lake") \ _ (0x06, 0x8f, "Sapphire Rapids", "Sapphire Rapids X") \ _ (0x06, 0x8e, "Kaby Lake", "Kaby Lake Y/U") \ _ (0x06, 0x8c, "Tiger Lake", "Tiger Lake U") \ _ (0x06, 0x86, "Tremont", "Jacobsville") \ _ (0x06, 0x85, "Knights Mill", "Knights Mill") \ _ (0x06, 0x7e, "Ice Lake", "Ice Lake U") \ _ (0x06, 0x7d, "Ice Lake", "Ice Lake Y") \ _ (0x06, 0x7a, "Goldmont Plus", "Gemini Lake") \ _ (0x06, 0x6c, "Ice Lake", "Ice Lake SP") \ _ (0x06, 0x6a, "Ice Lake", "Ice Lake DE") \ _ (0x06, 0x66, "Cannon Lake", "Cannon Lake U") \ _ (0x06, 0x5f, "Goldmont", "Denverton") \ _ (0x06, 0x5e, "Skylake", "Skylake DT/H/S") \ _ (0x06, 0x5c, "Goldmont", "Apollo Lake") \ _ (0x06, 0x5a, "Silvermont", "Moorefield") \ _ (0x06, 0x57, "Knights Landing", "Knights Landing") \ _ (0x06, 0x56, "Broadwell", "Broadwell DE") \ _ (0x06, 0x55, "Skylake", "Skylake X/SP") \ _ (0x06, 0x4f, "Broadwell", "Broadwell EP/EX") \ _ (0x06, 0x4e, "Skylake", "Skylake Y/U") \ _ (0x06, 0x4d, "Silvermont", "Rangeley") \ _ (0x06, 0x4c, "Airmont", "Braswell") \ _ (0x06, 0x47, "Broadwell", "Broadwell H") \ _ (0x06, 0x46, "Haswell", "Crystalwell") \ _ (0x06, 0x45, "Haswell", "Haswell ULT") \ _ (0x06, 0x3f, "Haswell", "Haswell E") \ _ (0x06, 0x3e, "Ivy Bridge", "Ivy Bridge E/EN/EP") \ _ (0x06, 0x3d, "Broadwell", "Broadwell U") \ _ (0x06, 0x3c, "Haswell", "Haswell") \ _ (0x06, 0x3a, "Ivy Bridge", "IvyBridge") \ _ (0x06, 0x37, "Silvermont", "BayTrail") \ _ (0x06, 0x36, "Saltwell", "Cedarview,Centerton") \ _ (0x06, 0x35, "Saltwell", "Cloverview") \ _ (0x06, 0x2f, "Westmere", "Westmere EX") \ _ (0x06, 0x2e, "Nehalem", "Nehalem EX") \ _ (0x06, 0x2d, "Sandy Bridge", "SandyBridge E/EN/EP") \ _ (0x06, 0x2c, "Westmere", "Westmere EP/EX,Gulftown") \ _ (0x06, 0x2a, "Sandy Bridge", "Sandy Bridge") \ _ (0x06, 0x27, "Saltwell", "Medfield") \ _ (0x06, 0x26, "Bonnell", "Tunnel Creek") \ _ (0x06, 0x25, "Westmere", "Arrandale,Clarksdale") \ _ (0x06, 0x1e, "Nehalem", "Clarksfield,Lynnfield,Jasper Forest") \ _ (0x06, 0x1d, "Penryn", "Dunnington") \ _ (0x06, 0x1c, "Bonnell", "Pineview,Silverthorne") \ _ (0x06, 0x1a, "Nehalem", "Nehalem EP,Bloomfield)") \ _ (0x06, 0x17, "Penryn", "Yorkfield,Wolfdale,Penryn,Harpertown") /* _(implementor-id, part-id, vendor-name, cpu-name, show CPU pass as string) */ #define foreach_aarch64_cpu_uarch \ _ (0x41, 0xd03, "ARM", "Cortex-A53", 0) \ _ (0x41, 0xd07, "ARM", "Cortex-A57", 0) \ _ (0x41, 0xd08, "ARM", "Cortex-A72", 0) \ _ (0x41, 0xd09, "ARM", "Cortex-A73", 0) \ _ (0x41, 0xd0a, "ARM", "Cortex-A75", 0) \ _ (0x41, 0xd0b, "ARM", "Cortex-A76", 0) \ _ (0x41, 0xd0c, "ARM", "Neoverse-N1", 0) \ _ (0x41, 0xd49, "ARM", "Neoverse-N2", 0) \ _ (0x41, 0xd4a, "ARM", "Neoverse-E1", 0) \ _ (0x43, 0x0a1, "Marvell", "THUNDERX CN88XX", 0) \ _ (0x43, 0x0a2, "Marvell", "OCTEON TX CN81XX", 0) \ _ (0x43, 0x0a3, "Marvell", "OCTEON TX CN83XX", 0) \ _ (0x43, 0x0af, "Marvell", "THUNDERX2 CN99XX", 1) \ _ (0x43, 0x0b1, "Marvell", "OCTEON TX2 CN98XX", 1) \ _ (0x43, 0x0b2, "Marvell", "OCTEON TX2 CN96XX", 1) __clib_export u8 * format_cpu_uarch (u8 * s, va_list * args) { #if __x86_64__ u32 __attribute__ ((unused)) eax, ebx, ecx, edx; u8 model, family, stepping; u8 amd_vendor = 0; if (__get_cpuid (0, &eax, &ebx, &ecx, &edx) == 0) return format (s, "unknown (missing cpuid)"); if (amd_vendor (ebx, ecx, edx)) amd_vendor = 1; if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0) return format (s, "unknown (missing cpuid)"); stepping = eax & 0x0f; if (amd_vendor) { family = ((eax >> 8) & 0x0f); model = ((eax >> 4) & 0x0f); if (family >= 0xf) { family = family + ((eax >> 20) & 0xf); model = (model | ((eax >> 12) & 0xf0)); } return format (s, "Zen (family 0x%02x model 0x%02x)", family, model); } else { model = ((eax >> 4) & 0x0f) | ((eax >> 12) & 0xf0); family = (eax >> 8) & 0x0f; } #define _(f,m,a,c) if ((model == m) && (family == f)) return \ format(s, "[0x%x] %s ([0x%02x] %s) stepping 0x%x", f, a, m, c, stepping); foreach_x86_cpu_uarch #undef _ return format (s, "unknown (family 0x%02x model 0x%02x)", family, model); #elif __aarch64__ unformat_input_t input; u32 implementer, primary_part_number, variant, revision; if (unformat_init_file (&input, "/proc/cpuinfo")) { while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT) { if (unformat (&input, "CPU implementer%_: 0x%x", &implementer)) ; else if (unformat (&input, "CPU part%_: 0x%x", &primary_part_number)) ; else if (unformat (&input, "CPU variant%_: 0x%x", &variant)) ; else if (unformat (&input, "CPU revision%_: %u", &revision)) ; else unformat_skip_line (&input); } unformat_free (&input); } else return format (s, "unknown"); #define _(i,p,a,c,_format) if ((implementer == i) && (primary_part_number == p)){ \ if (_format)\ return format(s, "%s (%s PASS %c%u)", a, c, 'A'+variant, revision);\ else {\ if (implementer == 0x43)\ variant++; \ return format (s, "%s (%s PASS %u.%u)", a, c, variant, revision);}} foreach_aarch64_cpu_uarch #undef _ return format (s, "unknown (implementer 0x%02x part 0x%03x PASS %u.%u)", implementer, primary_part_number, variant, revision); #else /* ! __x86_64__ */ return format (s, "unknown"); #endif } __clib_export u8 * format_cpu_model_name (u8 * s, va_list * args) { #if __x86_64__ u32 __attribute__ ((unused)) eax, ebx, ecx, edx; u8 *name = 0; u32 *name_u32; if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0) return format (s, "unknown (missing cpuid)"); __get_cpuid (0x80000000, &eax, &ebx, &ecx, &edx); if (eax < 0x80000004) return format (s, "unknown (missing ext feature)"); vec_validate (name, 48); name_u32 = (u32 *) name; __get_cpuid (0x80000002, &eax, &ebx, &ecx, &edx); name_u32[0] = eax; name_u32[1] = ebx; name_u32[2] = ecx; name_u32[3] = edx; __get_cpuid (0x80000003, &eax, &ebx, &ecx, &edx); name_u32[4] = eax; name_u32[5] = ebx; name_u32[6] = ecx; name_u32[7] = edx; __get_cpuid (0x80000004, &eax, &ebx, &ecx, &edx); name_u32[8] = eax; name_u32[9] = ebx; name_u32[10] = ecx; name_u32[11] = edx; s = format (s, "%s", name); vec_free (name); return s; #elif defined(__aarch64__) return format (s, "armv8"); #else /* ! __x86_64__ */ return format (s, "unknown"); #endif } #if defined(__x86_64__) || defined(__aarch64__) static inline char const * flag_skip_prefix (char const *flag, const char *pfx, int len) { if (0 == strncmp (flag, pfx, len - 1)) return flag + len - 1; return flag; } #endif __clib_export u8 * format_cpu_flags (u8 *s, va_list *args) { #if defined(__x86_64__) #define _(flag, func, reg, bit) \ if (clib_cpu_supports_##flag ()) \ s = format (s, "%s ", flag_skip_prefix (#flag, "x86_", sizeof ("x86_"))); foreach_x86_64_flags return s; #undef _ #elif defined(__aarch64__) #define _(flag, bit) \ if (clib_cpu_supports_##flag ()) \ s = format (s, "%s ", \ flag_skip_prefix (#flag, "aarch64_", sizeof ("aarch64_"))); foreach_aarch64_flags return s; #undef _ #else /* ! ! __x86_64__ && ! __aarch64__ */ return format (s, "unknown"); #endif } __clib_export u32 clib_get_current_cpu_id () { #ifdef __linux__ unsigned cpu, node; syscall (__NR_getcpu, &cpu, &node, 0); return cpu; #else return 0; #endif /* __linux__ */ } __clib_export u32 clib_get_current_numa_node () { #ifdef __linux__ unsigned cpu, node; syscall (__NR_getcpu, &cpu, &node, 0); return node; #else return 0; #endif /* __linux__ */ } __clib_export u8 * format_march_variant (u8 *s, va_list *args) { clib_march_variant_type_t t = va_arg (*args, clib_march_variant_type_t); char *variants[] = { [0] = "default", #define _(s, n) [CLIB_MARCH_VARIANT_TYPE_##s] = n, foreach_march_variant #undef _ }; return format (s, "%s", variants[t]); } #ifdef __aarch64__ __clib_export const clib_cpu_info_t * clib_get_cpu_info () { static int first_run = 1; static clib_cpu_info_t info = {}; if (first_run) { FILE *fp = fopen ("/proc/cpuinfo", "r"); char buf[128]; if (!fp) return 0; while (!feof (fp)) { if (!fgets (buf, sizeof (buf), fp)) break; buf[127] = '\0'; if (strstr (buf, "CPU part")) info.aarch64.part_num = strtol (memchr (buf, ':', 128) + 2, NULL, 0); if (strstr (buf, "CPU implementer")) info.aarch64.implementer = strtol (memchr (buf, ':', 128) + 2, NULL, 0); } fclose (fp); first_run = 0; } return &info; } #endif