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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/gplinclude/cpuid.h
parente2b00cb9768811ad45526d11bcc5be5e7722b5ba (diff)
downloadsyslinux-be15fb5e6fe184eb1bb725f229e157a7d1967986.tar.gz
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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/gplinclude/cpuid.h')
-rw-r--r--com32/gplinclude/cpuid.h215
1 files changed, 215 insertions, 0 deletions
diff --git a/com32/gplinclude/cpuid.h b/com32/gplinclude/cpuid.h
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+/*
+ * Portions of this file taken from the Linux kernel,
+ * Copyright 1991-2009 Linus Torvalds and contributors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ *
+*/
+
+#ifndef _CPUID_H
+#define _CPUID_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <cpufeature.h>
+#include <sys/cpu.h>
+#include <klibc/compiler.h>
+
+#define PAGE_SIZE 4096
+
+#define CPU_MODEL_SIZE 48
+#define CPU_VENDOR_SIZE 48
+
+typedef struct {
+ bool fpu; /* Onboard FPU */
+ bool vme; /* Virtual Mode Extensions */
+ bool de; /* Debugging Extensions */
+ bool pse; /* Page Size Extensions */
+ bool tsc; /* Time Stamp Counter */
+ bool msr; /* Model-Specific Registers, RDMSR, WRMSR */
+ bool pae; /* Physical Address Extensions */
+ bool mce; /* Machine Check Architecture */
+ bool cx8; /* CMPXCHG8 instruction */
+ bool apic;/* Onboard APIC */
+ bool sep; /* SYSENTER/SYSEXIT */
+ bool mtrr;/* Memory Type Range Registers */
+ bool pge; /* Page Global Enable */
+ bool mca; /* Machine Check Architecture */
+ bool cmov;/* CMOV instruction (FCMOVCC and FCOMI too if FPU present) */
+ bool pat; /* Page Attribute Table */
+ bool pse_36; /* 36-bit PSEs */
+ bool psn; /* Processor serial number */
+ bool clflsh; /* Supports the CLFLUSH instruction */
+ bool dts; /* Debug Trace Store */
+ bool acpi;/* ACPI via MSR */
+ bool mmx; /* Multimedia Extensions */
+ bool fxsr;/* FXSAVE and FXRSTOR instructions (fast save and restore */
+ /* of FPU context), and CR4.OSFXSR available */
+ bool sse; /* Streaming SIMD Extensions */
+ bool sse2;/* Streaming SIMD Extensions 2*/
+ bool ss; /* CPU self snoop */
+ bool htt; /* Hyper-Threading */
+ bool acc; /* Automatic clock control */
+ bool syscall; /* SYSCALL/SYSRET */
+ bool mp; /* MP Capable. */
+ bool nx; /* Execute Disable */
+ bool mmxext; /* AMD MMX extensions */
+ bool lm; /* Long Mode (x86-64) */
+ bool nowext;/* AMD 3DNow! extensions */
+ bool now; /* 3DNow! */
+ bool smp; /* A smp configuration has been found*/
+} s_cpu_flags;
+
+typedef struct {
+ char vendor[CPU_VENDOR_SIZE];
+ uint8_t vendor_id;
+ uint8_t family;
+ char model[CPU_MODEL_SIZE];
+ uint8_t model_id;
+ uint8_t stepping;
+ s_cpu_flags flags;
+} s_cpu;
+
+/**********************************************************************************/
+/**********************************************************************************/
+/* From this point this is some internal stuff mainly taken from the linux kernel */
+/**********************************************************************************/
+/**********************************************************************************/
+
+/*
+ * EFLAGS bits
+ */
+#define X86_EFLAGS_CF 0x00000001 /* Carry Flag */
+#define X86_EFLAGS_PF 0x00000004 /* Parity Flag */
+#define X86_EFLAGS_AF 0x00000010 /* Auxillary carry Flag */
+#define X86_EFLAGS_ZF 0x00000040 /* Zero Flag */
+#define X86_EFLAGS_SF 0x00000080 /* Sign Flag */
+#define X86_EFLAGS_TF 0x00000100 /* Trap Flag */
+#define X86_EFLAGS_IF 0x00000200 /* Interrupt Flag */
+#define X86_EFLAGS_DF 0x00000400 /* Direction Flag */
+#define X86_EFLAGS_OF 0x00000800 /* Overflow Flag */
+#define X86_EFLAGS_IOPL 0x00003000 /* IOPL mask */
+#define X86_EFLAGS_NT 0x00004000 /* Nested Task */
+#define X86_EFLAGS_RF 0x00010000 /* Resume Flag */
+#define X86_EFLAGS_VM 0x00020000 /* Virtual Mode */
+#define X86_EFLAGS_AC 0x00040000 /* Alignment Check */
+#define X86_EFLAGS_VIF 0x00080000 /* Virtual Interrupt Flag */
+#define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */
+#define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */
+
+#define X86_VENDOR_INTEL 0
+#define X86_VENDOR_CYRIX 1
+#define X86_VENDOR_AMD 2
+#define X86_VENDOR_UMC 3
+#define X86_VENDOR_NEXGEN 4
+#define X86_VENDOR_CENTAUR 5
+#define X86_VENDOR_RISE 6
+#define X86_VENDOR_TRANSMETA 7
+#define X86_VENDOR_NSC 8
+#define X86_VENDOR_NUM 9
+#define X86_VENDOR_UNKNOWN 0xff
+
+static inline __purefunc bool test_bit(int nr, const uint32_t *addr)
+{
+ return ((1UL << (nr & 31)) & (addr[nr >> 5])) != 0;
+}
+
+#define cpu_has(c, bit) test_bit(bit, (c)->x86_capability)
+
+/*
+ * CPU type and hardware bug flags. Kept separately for each CPU.
+ * Members of this structure are referenced in head.S, so think twice
+ * before touching them. [mj]
+ */
+
+struct cpuinfo_x86 {
+ uint8_t x86; /* CPU family */
+ uint8_t x86_vendor; /* CPU vendor */
+ uint8_t x86_model;
+ uint8_t x86_mask;
+ char wp_works_ok; /* It doesn't on 386's */
+ char hlt_works_ok; /* Problems on some 486Dx4's and old 386's */
+ char hard_math;
+ char rfu;
+ int cpuid_level; /* Maximum supported CPUID level, -1=no CPUID */
+ uint32_t x86_capability[NCAPINTS];
+ char x86_vendor_id[16];
+ char x86_model_id[64];
+ int x86_cache_size; /* in KB, if available */
+ int x86_cache_alignment; /* in bytes */
+ char fdiv_bug;
+ char f00f_bug;
+ char coma_bug;
+ char pad0;
+ int x86_power;
+ unsigned long loops_per_jiffy;
+#ifdef CONFIG_SMP
+ cpumask_t llc_shared_map; /* cpus sharing the last level cache */
+#endif
+ unsigned char x86_max_cores; /* cpuid returned max cores value */
+ unsigned char booted_cores; /* number of cores as seen by OS */
+ unsigned char apicid;
+ unsigned char x86_clflush_size;
+
+} __attribute__((__packed__));
+#endif
+
+struct cpu_model_info {
+ int vendor;
+ int family;
+ char *model_names[16];
+};
+
+/* attempt to consolidate cpu attributes */
+struct cpu_dev {
+ char * c_vendor;
+
+ /* some have two possibilities for cpuid string */
+ char * c_ident[2];
+
+ struct cpu_model_info c_models[4];
+
+ void (*c_init)(struct cpuinfo_x86 * c);
+ void (*c_identify)(struct cpuinfo_x86 * c);
+ unsigned int (*c_size_cache)(struct cpuinfo_x86 * c, unsigned int size);
+};
+
+/*
+ * Structure definitions for SMP machines following the
+ * Intel Multiprocessing Specification 1.1 and 1.4.
+ */
+
+/*
+ * This tag identifies where the SMP configuration
+ * information is.
+ */
+
+#define SMP_MAGIC_IDENT (('_'<<24)|('P'<<16)|('M'<<8)|'_')
+
+struct intel_mp_floating
+{
+ char mpf_signature[4]; /* "_MP_" */
+ uint32_t mpf_physptr; /* Configuration table address */
+ uint8_t mpf_length; /* Our length (paragraphs) */
+ uint8_t mpf_specification; /* Specification version */
+ uint8_t mpf_checksum; /* Checksum (makes sum 0) */
+ uint8_t mpf_feature1; /* Standard or configuration ? */
+ uint8_t mpf_feature2; /* Bit7 set for IMCR|PIC */
+ uint8_t mpf_feature3; /* Unused (0) */
+ uint8_t mpf_feature4; /* Unused (0) */
+ uint8_t mpf_feature5; /* Unused (0) */
+};
+
+
+extern void get_cpu_vendor(struct cpuinfo_x86 *c);
+extern void detect_cpu(s_cpu *cpu);