256 lines
7.0 KiB
C
256 lines
7.0 KiB
C
/*
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* This file is part of msrtool.
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*
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* Copyright (c) 2008 Peter Stuge <peter@stuge.se>
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* Copyright (c) 2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef MSRTOOL_H
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#define MSRTOOL_H
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#include <stdio.h>
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#include <stdint.h>
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#if (defined(__MACH__) && defined(__APPLE__))
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/* DirectHW is available here: https://www.coreboot.org/DirectHW */
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#define __DARWIN__
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#include <DirectHW/DirectHW.h>
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#endif
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#if defined(__FreeBSD__)
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#include <sys/ioctl.h>
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#include <sys/cpuctl.h>
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#endif
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#include <pci/pci.h>
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#define HEXCHARS "0123456789abcdefABCDEF"
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enum {
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MSRTYPE_RDONLY,
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MSRTYPE_RDWR,
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MSRTYPE_WRONLY,
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MSRTYPE_EOT
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} MsrTypes;
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enum {
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PRESENT_RSVD,
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PRESENT_DEC,
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PRESENT_BIN,
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PRESENT_OCT,
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PRESENT_HEX,
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PRESENT_HEXDEC,
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PRESENT_STR,
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} PresentTypes;
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struct msr {
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uint32_t hi;
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uint32_t lo;
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};
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struct msrbitvalues {
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const struct msr value;
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const char *text;
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};
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struct msrbits {
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const uint8_t start;
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const uint8_t size;
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const char *name;
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const char *desc;
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const uint8_t present;
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const struct msrbitvalues bitval[32];
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};
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struct msrdef {
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const uint32_t addr;
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const uint8_t type;
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const struct msr resetval;
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const char *symbol;
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const char *desc;
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const struct msrbits bits[65];
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};
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#define MSR1(lo) { 0, (lo) }
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#define MSR2(hi,lo) { (hi), (lo) }
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#define BITVAL_EOT .text = NULL
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#define BITVAL_ISEOT(bv) (NULL == (bv).text)
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#define BITS_EOT .size = 0
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#define BITS_ISEOT(b) (0 == (b).size)
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#define MSR_EOT .type = MSRTYPE_EOT
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#define MSR_ISEOT(m) (MSRTYPE_EOT == (m).type)
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#define NOBITS {{ BITVAL_EOT }}
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#define RESERVED "RSVD", "Reserved", PRESENT_HEXDEC, NOBITS
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#define MAX_CORES 8
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typedef enum {
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VENDOR_INTEL = 1,
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VENDOR_AMD = 2,
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} vendor_t;
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struct cpuid_t {
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uint8_t family;
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uint8_t model;
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uint8_t stepping;
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uint8_t ext_family;
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uint8_t ext_model;
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vendor_t vendor;
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};
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struct targetdef {
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const char *name;
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const char *prettyname;
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int (*probe)(const struct targetdef *target, const struct cpuid_t *id);
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const struct msrdef *msrs;
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};
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#define TARGET_EOT .name = NULL
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#define TARGET_ISEOT(t) (NULL == (t).name)
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enum SysModes {
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SYS_RDONLY = 0,
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SYS_WRONLY,
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SYS_RDWR
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};
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struct sysdef {
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const char *name;
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const char *prettyname;
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int (*probe)(const struct sysdef *system);
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int (*open)(uint8_t cpu, enum SysModes mode);
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int (*close)(uint8_t cpu);
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int (*rdmsr)(uint8_t cpu, uint32_t addr, struct msr *val);
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};
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#define SYSTEM_EOT .name = NULL
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#define SYSTEM_ISEOT(s) (NULL == (s).name)
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extern const struct sysdef *sys;
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extern uint8_t targets_found;
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extern const struct targetdef **targets;
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extern uint8_t reserved, verbose, quiet;
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extern struct pci_access *pacc;
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#define printf_quiet(x...) do { if (!quiet) fprintf(stderr,x); } while(0)
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#define printf_verbose(x...) do { if (verbose && !quiet) fprintf(stderr,x); } while(0)
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#define SYSERROR(call, addr) do { \
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const struct msrdef *m = findmsrdef(addr); \
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if (m) \
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fprintf(stderr, "%s: " #call "(0x%08x) %s: %s\n", __func__, addr, m->symbol, strerror(errno)); \
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else \
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fprintf(stderr, "%s: " #call "(0x%08x): %s\n", __func__, addr, strerror(errno)); \
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} while (0);
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/* sys.c */
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struct cpuid_t *cpuid(void);
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struct pci_dev *pci_dev_find(uint16_t vendor, uint16_t device);
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/* msrutils.c */
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void hexprint(FILE *f, const struct msr val, const uint8_t bits);
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void strprint(FILE *f, const struct msr val, const uint8_t bits);
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int msr_eq(const struct msr a, const struct msr b);
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struct msr msr_shl(const struct msr a, const uint8_t bits);
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struct msr msr_shr(const struct msr a, const uint8_t bits);
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void msr_and(struct msr *a, const struct msr b);
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const struct msrdef *findmsrdef(const uint32_t addr);
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uint32_t msraddrbyname(const char *name);
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void dumpmsrdefs(const struct targetdef *t);
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int dumpmsrdefsvals(FILE *f, const struct targetdef *t, const uint8_t cpu);
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uint8_t str2msr(char *str, struct msr *msr, char **endptr);
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void decodemsr(const uint8_t cpu, const uint32_t addr, const struct msr val);
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uint8_t diff_msr(FILE *fout, const uint32_t addr, const struct msr a, const struct msr b);
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/** system externs **/
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/* linux.c */
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extern int linux_probe(const struct sysdef *system);
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extern int linux_open(uint8_t cpu, enum SysModes mode);
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extern int linux_close(uint8_t cpu);
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extern int linux_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val);
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/* darwin.c */
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extern int darwin_probe(const struct sysdef *system);
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extern int darwin_open(uint8_t cpu, enum SysModes mode);
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extern int darwin_close(uint8_t cpu);
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extern int darwin_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val);
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/* freebsd.c */
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extern int freebsd_probe(const struct sysdef *system);
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extern int freebsd_open(uint8_t cpu, enum SysModes mode);
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extern int freebsd_close(uint8_t cpu);
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extern int freebsd_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val);
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/** target externs **/
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/* geodegx2.c */
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extern int geodegx2_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef geodegx2_msrs[];
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/* geodelx.c */
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extern int geodelx_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef geodelx_msrs[];
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/* cs5536.c */
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extern int cs5536_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef cs5536_msrs[];
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/* k8.c */
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extern int k8_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef k8_msrs[];
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/* intel_pentium3_early.c */
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extern int intel_pentium3_early_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef intel_pentium3_early_msrs[];
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/* intel_pentium3.c */
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extern int intel_pentium3_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef intel_pentium3_msrs[];
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/* intel_core1.c */
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extern int intel_core1_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef intel_core1_msrs[];
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/* intel_core2_early.c */
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extern int intel_core2_early_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef intel_core2_early_msrs[];
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/* intel_core2_later.c */
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extern int intel_core2_later_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef intel_core2_later_msrs[];
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/* intel_pentium4_early.c */
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extern int intel_pentium4_early_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef intel_pentium4_early_msrs[];
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/* intel_pentium4_later.c */
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extern int intel_pentium4_later_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef intel_pentium4_later_msrs[];
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/* intel_nehalem.c */
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extern int intel_nehalem_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef intel_nehalem_msrs[];
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/* intel_atom.c */
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extern int intel_atom_probe(const struct targetdef *t, const struct cpuid_t *id);
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extern const struct msrdef intel_atom_msrs[];
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#endif /* MSRTOOL_H */
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