summaryrefslogtreecommitdiff
path: root/com32/modules/cpuid.c
diff options
context:
space:
mode:
authorErwan Velu <erwan.velu@free.fr>2009-03-12 22:40:38 +0100
committerErwan Velu <erwan.velu@free.fr>2009-03-12 22:40:38 +0100
commitbe15fb5e6fe184eb1bb725f229e157a7d1967986 (patch)
tree0e03c26bfcec2384b6eb46d4784938a1ef42a4bc /com32/modules/cpuid.c
parente2b00cb9768811ad45526d11bcc5be5e7722b5ba (diff)
downloadsyslinux-be15fb5e6fe184eb1bb725f229e157a7d1967986.tar.gz
Moving dmi & cpuid stuff to gpl subdirs
Fixing copyrights Moving dmi includes to gplinclude/dmi Moving dmi code to gpllib/dmi/ Moving cpuid includes to gplinclude/ Moving cpuid code to gpllib/ Fixing Makefiles accordingly
Diffstat (limited to 'com32/modules/cpuid.c')
-rw-r--r--com32/modules/cpuid.c337
1 files changed, 0 insertions, 337 deletions
diff --git a/com32/modules/cpuid.c b/com32/modules/cpuid.c
deleted file mode 100644
index 4d6d46e4..00000000
--- a/com32/modules/cpuid.c
+++ /dev/null
@@ -1,337 +0,0 @@
-/* ----------------------------------------------------------------------- *
- *
- * Copyright 2006 Erwan Velu - All Rights Reserved
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom
- * the Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall
- * be included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * ----------------------------------------------------------------------- */
-
-#include <stdio.h>
-#include <string.h>
-#include "cpuid.h"
-
-struct cpu_dev * cpu_devs[X86_VENDOR_NUM] = {};
-
-/*
-* CPUID functions returning a single datum
-*/
-
-/* Probe for the CPUID instruction */
-static int have_cpuid_p(void)
-{
- return cpu_has_eflag(X86_EFLAGS_ID);
-}
-
-static struct cpu_dev amd_cpu_dev = {
- .c_vendor = "AMD",
- .c_ident = { "AuthenticAMD" }
-};
-
-static struct cpu_dev intel_cpu_dev = {
- .c_vendor = "Intel",
- .c_ident = { "GenuineIntel" }
-};
-
-static struct cpu_dev cyrix_cpu_dev = {
- .c_vendor = "Cyrix",
- .c_ident = { "CyrixInstead" }
-};
-
-static struct cpu_dev umc_cpu_dev = {
- .c_vendor = "UMC",
- .c_ident = { "UMC UMC UMC" }
-
-};
-
-static struct cpu_dev nexgen_cpu_dev = {
- .c_vendor = "Nexgen",
- .c_ident = { "NexGenDriven" }
-};
-
-static struct cpu_dev centaur_cpu_dev = {
- .c_vendor = "Centaur",
- .c_ident = { "CentaurHauls" }
-};
-
-static struct cpu_dev rise_cpu_dev = {
- .c_vendor = "Rise",
- .c_ident = { "RiseRiseRise" }
-};
-
-static struct cpu_dev transmeta_cpu_dev = {
- .c_vendor = "Transmeta",
- .c_ident = { "GenuineTMx86", "TransmetaCPU" }
-};
-
-void init_cpu_devs(void)
-{
- cpu_devs[X86_VENDOR_INTEL] = &intel_cpu_dev;
- cpu_devs[X86_VENDOR_CYRIX] = &cyrix_cpu_dev;
- cpu_devs[X86_VENDOR_AMD] = &amd_cpu_dev;
- cpu_devs[X86_VENDOR_UMC] = &umc_cpu_dev;
- cpu_devs[X86_VENDOR_NEXGEN] = &nexgen_cpu_dev;
- cpu_devs[X86_VENDOR_CENTAUR] = &centaur_cpu_dev;
- cpu_devs[X86_VENDOR_RISE] = &rise_cpu_dev;
- cpu_devs[X86_VENDOR_TRANSMETA] = &transmeta_cpu_dev;
-}
-
-void get_cpu_vendor(struct cpuinfo_x86 *c)
-{
- char *v = c->x86_vendor_id;
- int i;
- init_cpu_devs();
- for (i = 0; i < X86_VENDOR_NUM; i++) {
- if (cpu_devs[i]) {
- if (!strcmp(v,cpu_devs[i]->c_ident[0]) ||
- (cpu_devs[i]->c_ident[1] &&
- !strcmp(v,cpu_devs[i]->c_ident[1]))) {
- c->x86_vendor = i;
- return;
- }
- }
- }
-
- c->x86_vendor = X86_VENDOR_UNKNOWN;
-}
-
-int get_model_name(struct cpuinfo_x86 *c)
-{
- unsigned int *v;
- char *p, *q;
-
- if (cpuid_eax(0x80000000) < 0x80000004)
- return 0;
-
- v = (unsigned int *) c->x86_model_id;
- cpuid(0x80000002, &v[0], &v[1], &v[2], &v[3]);
- cpuid(0x80000003, &v[4], &v[5], &v[6], &v[7]);
- cpuid(0x80000004, &v[8], &v[9], &v[10], &v[11]);
- c->x86_model_id[48] = 0;
-
- /* Intel chips right-justify this string for some dumb reason;
- undo that brain damage */
- p = q = &c->x86_model_id[0];
- while ( *p == ' ' )
- p++;
- if ( p != q ) {
- while ( *p )
- *q++ = *p++;
- while ( q <= &c->x86_model_id[48] )
- *q++ = '\0'; /* Zero-pad the rest */
- }
-
- return 1;
-}
-
-void generic_identify(struct cpuinfo_x86 *c)
-{
- uint32_t tfms, xlvl;
- unsigned int ebx;
-
- /* Get vendor name */
- cpuid(0x00000000,
- (uint32_t *)&c->cpuid_level,
- (uint32_t *)&c->x86_vendor_id[0],
- (uint32_t *)&c->x86_vendor_id[8],
- (uint32_t *)&c->x86_vendor_id[4]);
-
- get_cpu_vendor(c);
- /* Intel-defined flags: level 0x00000001 */
- if ( c->cpuid_level >= 0x00000001 ) {
- uint32_t capability, excap;
- cpuid(0x00000001, &tfms, &ebx, &excap, &capability);
- c->x86_capability[0] = capability;
- c->x86_capability[4] = excap;
- c->x86 = (tfms >> 8) & 15;
- c->x86_model = (tfms >> 4) & 15;
- if (c->x86 == 0xf)
- c->x86 += (tfms >> 20) & 0xff;
- if (c->x86 >= 0x6)
- c->x86_model += ((tfms >> 16) & 0xF) << 4;
- c->x86_mask = tfms & 15;
- if (cpu_has(c, X86_FEATURE_CLFLSH))
- c->x86_clflush_size = ((ebx >> 8) & 0xff) * 8;
- } else {
- /* Have CPUID level 0 only - unheard of */
- c->x86 = 4;
- }
-
- /* AMD-defined flags: level 0x80000001 */
- xlvl = cpuid_eax(0x80000000);
- if ( (xlvl & 0xffff0000) == 0x80000000 ) {
- if ( xlvl >= 0x80000001 ) {
- c->x86_capability[1] = cpuid_edx(0x80000001);
- c->x86_capability[6] = cpuid_ecx(0x80000001);
- }
- if ( xlvl >= 0x80000004 )
- get_model_name(c); /* Default name */
- }
-}
-
-/*
- * Checksum an MP configuration block.
- */
-
-static int mpf_checksum(unsigned char *mp, int len)
-{
- int sum = 0;
-
- while (len--)
- sum += *mp++;
-
- return sum & 0xFF;
-}
-
-static int smp_scan_config (unsigned long base, unsigned long length)
-{
- unsigned long *bp = (unsigned long *)base;
- struct intel_mp_floating *mpf;
-
-// printf("Scan SMP from %p for %ld bytes.\n", bp,length);
- if (sizeof(*mpf) != 16) {
- printf("Error: MPF size\n");
- return 0;
- }
-
- while (length > 0) {
- mpf = (struct intel_mp_floating *)bp;
- if ((*bp == SMP_MAGIC_IDENT) &&
- (mpf->mpf_length == 1) &&
- !mpf_checksum((unsigned char *)bp, 16) &&
- ((mpf->mpf_specification == 1)
- || (mpf->mpf_specification == 4)) ) {
- return 1;
- }
- bp += 4;
- length -= 16;
- }
- return 0;
-}
-
-int find_smp_config (void)
-{
-// unsigned int address;
-
- /*
- * FIXME: Linux assumes you have 640K of base ram..
- * this continues the error...
- *
- * 1) Scan the bottom 1K for a signature
- * 2) Scan the top 1K of base RAM
- * 3) Scan the 64K of bios
- */
- if (smp_scan_config(0x0,0x400) ||
- smp_scan_config(639*0x400,0x400) ||
- smp_scan_config(0xF0000,0x10000))
- return 1;
- /*
- * If it is an SMP machine we should know now, unless the
- * configuration is in an EISA/MCA bus machine with an
- * extended bios data area.
- *
- * there is a real-mode segmented pointer pointing to the
- * 4K EBDA area at 0x40E, calculate and scan it here.
- *
- * NOTE! There are Linux loaders that will corrupt the EBDA
- * area, and as such this kind of SMP config may be less
- * trustworthy, simply because the SMP table may have been
- * stomped on during early boot. These loaders are buggy and
- * should be fixed.
- *
- * MP1.4 SPEC states to only scan first 1K of 4K EBDA.
- */
-
-// address = get_bios_ebda();
-// if (address)
-// smp_scan_config(address, 0x400);
- return 0;
-}
-
-
-void set_cpu_flags(struct cpuinfo_x86 *c, s_cpu *cpu) {
-cpu->flags.fpu=cpu_has(c, X86_FEATURE_FPU);
-cpu->flags.vme=cpu_has(c, X86_FEATURE_VME);
-cpu->flags.de=cpu_has(c, X86_FEATURE_DE);
-cpu->flags.pse=cpu_has(c, X86_FEATURE_PSE);
-cpu->flags.tsc=cpu_has(c, X86_FEATURE_TSC);
-cpu->flags.msr=cpu_has(c, X86_FEATURE_MSR);
-cpu->flags.pae=cpu_has(c, X86_FEATURE_PAE);
-cpu->flags.mce=cpu_has(c, X86_FEATURE_MCE);
-cpu->flags.cx8=cpu_has(c, X86_FEATURE_CX8);
-cpu->flags.apic=cpu_has(c, X86_FEATURE_APIC);
-cpu->flags.sep=cpu_has(c, X86_FEATURE_SEP);
-cpu->flags.mtrr=cpu_has(c, X86_FEATURE_MTRR);
-cpu->flags.pge=cpu_has(c, X86_FEATURE_PGE);
-cpu->flags.mca=cpu_has(c, X86_FEATURE_MCA);
-cpu->flags.cmov=cpu_has(c, X86_FEATURE_CMOV);
-cpu->flags.pat=cpu_has(c, X86_FEATURE_PAT);
-cpu->flags.pse_36=cpu_has(c, X86_FEATURE_PSE36);
-cpu->flags.psn=cpu_has(c, X86_FEATURE_PN);
-cpu->flags.clflsh=cpu_has(c, X86_FEATURE_CLFLSH);
-cpu->flags.dts=cpu_has(c, X86_FEATURE_DTES);
-cpu->flags.acpi=cpu_has(c, X86_FEATURE_ACPI);
-cpu->flags.mmx=cpu_has(c, X86_FEATURE_MMX);
-cpu->flags.fxsr=cpu_has(c, X86_FEATURE_FXSR);
-cpu->flags.sse=cpu_has(c, X86_FEATURE_XMM);
-cpu->flags.sse2=cpu_has(c, X86_FEATURE_XMM2);
-cpu->flags.ss=cpu_has(c, X86_FEATURE_SELFSNOOP);
-cpu->flags.htt=cpu_has(c, X86_FEATURE_HT);
-cpu->flags.acc=cpu_has(c, X86_FEATURE_ACC);
-cpu->flags.syscall=cpu_has(c, X86_FEATURE_SYSCALL);
-cpu->flags.mp=cpu_has(c, X86_FEATURE_MP);
-cpu->flags.nx=cpu_has(c, X86_FEATURE_NX);
-cpu->flags.mmxext=cpu_has(c, X86_FEATURE_MMXEXT);
-cpu->flags.lm=cpu_has(c, X86_FEATURE_LM);
-cpu->flags.nowext=cpu_has(c, X86_FEATURE_3DNOWEXT);
-cpu->flags.now=cpu_has(c, X86_FEATURE_3DNOW);
-cpu->flags.smp = find_smp_config();
-}
-
-void set_generic_info(struct cpuinfo_x86 *c,s_cpu *cpu) {
- cpu->family=c->x86;
- cpu->vendor_id=c->x86_vendor;
- cpu->model_id=c->x86_model;
- cpu->stepping=c->x86_mask;
- strncpy(cpu->vendor,cpu_devs[c->x86_vendor]->c_vendor,sizeof(cpu->vendor));
- strncpy(cpu->model,c->x86_model_id,sizeof(cpu->model));
-}
-
-void detect_cpu(s_cpu *cpu)
-{
- struct cpuinfo_x86 c;
- c.x86_clflush_size = 32;
- c.x86_cache_size = -1;
- c.x86_vendor = X86_VENDOR_UNKNOWN;
- c.cpuid_level = -1; /* CPUID not detected */
- c.x86_model = c.x86_mask = 0; /* So far unknown... */
- c.x86_max_cores = 1;
- memset(&c.x86_capability, 0, sizeof(c.x86_capability));
- memset(&c.x86_vendor_id,0,sizeof(c.x86_vendor_id));
- memset(&c.x86_model_id,0,sizeof(c.x86_model_id));
-
- if (!have_cpuid_p())
- return;
-
- generic_identify(&c);
- set_generic_info(&c,cpu);
- set_cpu_flags(&c,cpu);
-}