From 522e4864b9b8b6751a9cb35ad8f1926f5d162837 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Fri, 4 Mar 2016 12:44:14 +0100 Subject: Add CPU detection functions Change-Id: Id7ea0410d6a789000c747c36a7e50076e31dc29a Signed-off-by: Damjan Marion --- vppinfra/Makefile.am | 2 + vppinfra/vppinfra/cpu.c | 110 ++++++++++++++++++++++++++++++++++++++++++++++++ vppinfra/vppinfra/cpu.h | 22 ++++++++++ 3 files changed, 134 insertions(+) create mode 100644 vppinfra/vppinfra/cpu.c create mode 100644 vppinfra/vppinfra/cpu.h (limited to 'vppinfra') diff --git a/vppinfra/Makefile.am b/vppinfra/Makefile.am index e3a7d46def4..3a400163e52 100644 --- a/vppinfra/Makefile.am +++ b/vppinfra/Makefile.am @@ -168,6 +168,7 @@ nobase_include_HEADERS = \ vppinfra/byte_order.h \ vppinfra/cache.h \ vppinfra/clib.h \ + vppinfra/cpu.h \ vppinfra/elf.h \ vppinfra/elf_clib.h \ vppinfra/elog.h \ @@ -224,6 +225,7 @@ nobase_include_HEADERS = \ CLIB_CORE = \ vppinfra/asm_x86.c \ vppinfra/backtrace.c \ + vppinfra/cpu.c \ vppinfra/elf.c \ vppinfra/elog.c \ vppinfra/error.c \ diff --git a/vppinfra/vppinfra/cpu.c b/vppinfra/vppinfra/cpu.c new file mode 100644 index 00000000000..852f9869c73 --- /dev/null +++ b/vppinfra/vppinfra/cpu.c @@ -0,0 +1,110 @@ +/* + * 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 + +#if __x86_64__ +#include +#endif + +#define foreach_x86_cpu_uarch \ + _(0x06, 0x3d, "Broadwell", "Broadwell") \ + _(0x06, 0x3f, "Haswell", "Haswell-E") \ + _(0x06, 0x3c, "Haswell", "Haswell") \ + _(0x06, 0x3e, "IvyBridge", "IvyBridge-E/EN/EP") \ + _(0x06, 0x3a, "IvyBridge", "IvyBridge") \ + _(0x06, 0x2a, "SandyBridge", "SandyBridge") \ + _(0x06, 0x2d, "SandyBridge", "SandyBridge-E/EN/EP") \ + _(0x06, 0x25, "Westmere", "Arrandale,Clarksdale") \ + _(0x06, 0x2c, "Westmere", "Westmere-EP/EX,Gulftown") \ + _(0x06, 0x2f, "Westmere", "Westmere-EX") \ + _(0x06, 0x1e, "Nehalem", "Clarksfield,Lynnfield,Jasper Forest") \ + _(0x06, 0x1a, "Nehalem", "Nehalem-EP,Bloomfield)") \ + _(0x06, 0x2e, "Nehalem", "Nehalem-EX") \ + _(0x06, 0x17, "Penryn", "Yorkfield,Wolfdale,Penryn,Harpertown (DP)") \ + _(0x06, 0x1d, "Penryn", "Dunnington (MP)") \ + _(0x06, 0x37, "Atom", "Bay Trail") \ + _(0x06, 0x36, "Atom", "Cedarview") \ + _(0x06, 0x26, "Atom", "Lincroft") \ + _(0x06, 0x1c, "Atom", "Pineview/Silverthorne") + +u8 * +format_cpu_uarch (u8 * s, va_list * args) +{ +#if __x86_64__ + u32 __attribute__((unused)) eax, ebx, ecx, edx; + u8 model, family; + + if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0) + return format (s, "unknown (missing cpuid)"); + + model = ((eax >> 4) & 0x0f) | ((eax >> 12) & 0xf0); + family = (eax >> 8) & 0x0f; + +#define _(f,m,a,c) if ((model == m) && (family == f)) return format(s, "%s (%s)", a, c); + foreach_x86_cpu_uarch +#undef _ + return format (s, "unknown (family 0x%02x model 0x%02x)", family, model); + +#else /* ! __x86_64__ */ + return format (s, "unknown"); +#endif +} + +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; + +#else /* ! __x86_64__ */ + return format (s, "unknown"); +#endif +} \ No newline at end of file diff --git a/vppinfra/vppinfra/cpu.h b/vppinfra/vppinfra/cpu.h new file mode 100644 index 00000000000..79cdf74f84b --- /dev/null +++ b/vppinfra/vppinfra/cpu.h @@ -0,0 +1,22 @@ +/* + * 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. + */ + +#ifndef included_clib_cpu_h +#define included_clib_cpu_h + +format_function_t format_cpu_uarch; +format_function_t format_cpu_model_name; + +#endif \ No newline at end of file -- cgit 1.2.3-korg