From dad1e3091f2d9a3fc03b9ca83c2990e23b4ea32c Mon Sep 17 00:00:00 2001 From: Peter Stuge Date: Sat, 22 Nov 2008 17:13:36 +0000 Subject: msrtool: Release Candidate 1 msrtool can decode MSRs and print the value of every field in human readable form. It can also be used to save a set of MSRs to a file, and at a later time compare the saved values with current values in hardware. Signed-off-by: Peter Stuge Acked-by: Stefan Reinauer git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3766 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- util/msrtool/msrtool.h | 183 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 183 insertions(+) create mode 100644 util/msrtool/msrtool.h (limited to 'util/msrtool/msrtool.h') diff --git a/util/msrtool/msrtool.h b/util/msrtool/msrtool.h new file mode 100644 index 0000000000..ab7c227d37 --- /dev/null +++ b/util/msrtool/msrtool.h @@ -0,0 +1,183 @@ +/* + * This file is part of msrtool. + * + * Copyright (c) 2008 Peter Stuge + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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 + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef MSRTOOL_H +#define MSRTOOL_H + +#include +#include + +#define HEXCHARS "0123456789abcdefABCDEF" + +enum { + MSRTYPE_RDONLY, + MSRTYPE_RDWR, + MSRTYPE_WRONLY, + MSRTYPE_EOT +} MsrTypes; + +enum { + PRESENT_RSVD, + PRESENT_DEC, + PRESENT_BIN, + PRESENT_OCT, + PRESENT_HEX, + PRESENT_HEXDEC +} PresentTypes; + +struct msr { + uint32_t hi; + uint32_t lo; +}; + +struct msrbitvalues { + const struct msr value; + const char *text; +}; + +struct msrbits { + const uint8_t start; + const uint8_t size; + const char *name; + const char *desc; + const uint8_t present; + const struct msrbitvalues bitval[32]; +}; + +struct msrdef { + const uint32_t addr; + const uint8_t type; + const struct msr resetval; + const char *symbol; + const char *desc; + const struct msrbits bits[65]; +}; + +#define MSR1(lo) { 0, (lo) } +#define MSR2(hi,lo) { (hi), (lo) } + +#define BITVAL_EOT .text = NULL +#define BITVAL_ISEOT(bv) (NULL == (bv).text) + +#define BITS_EOT .size = 0 +#define BITS_ISEOT(b) (0 == (b).size) + +#define MSR_EOT .type = MSRTYPE_EOT +#define MSR_ISEOT(m) (MSRTYPE_EOT == (m).type) + +#define NOBITS {{ BITVAL_EOT }} +#define RESERVED "RSVD", "Reserved", PRESENT_HEXDEC, NOBITS + +#define MAX_CORES 8 + +struct targetdef { + const char *name; + const char *prettyname; + int (*probe)(const struct targetdef *target); + const struct msrdef *msrs; +}; + +#define TARGET_EOT .name = NULL +#define TARGET_ISEOT(t) (NULL == (t).name) + + +enum SysModes { + SYS_RDONLY = 0, + SYS_WRONLY, + SYS_RDWR +}; + +struct sysdef { + const char *name; + const char *prettyname; + int (*probe)(const struct sysdef *system); + int (*open)(uint8_t cpu, enum SysModes mode); + int (*close)(uint8_t cpu); + int (*rdmsr)(uint8_t cpu, uint32_t addr, struct msr *val); +}; + +#define SYSTEM_EOT .name = NULL +#define SYSTEM_ISEOT(s) (NULL == (s).name) + + +struct cpuid_t { + uint8_t family; + uint8_t model; + uint8_t stepping; + uint8_t ext_family; + uint8_t ext_model; +}; + + +extern const struct sysdef *sys; + +extern uint8_t targets_found; +extern const struct targetdef **targets; + +extern uint8_t reserved, verbose, quiet; + +#define printf_quiet(x...) do { if (!quiet) fprintf(stderr,x); } while(0) +#define printf_verbose(x...) do { if (verbose && !quiet) fprintf(stderr,x); } while(0) + +#define SYSERROR(call, addr) do { \ + const struct msrdef *m = findmsrdef(addr); \ + if (m) \ + fprintf(stderr, "%s: " #call "(0x%08x) %s: %s\n", __func__, addr, m->symbol, strerror(errno)); \ + else \ + fprintf(stderr, "%s: " #call "(0x%08x): %s\n", __func__, addr, strerror(errno)); \ +} while (0); + +/* sys.c */ +struct cpuid_t *cpuid(void); + +/* msrutils.c */ +void hexprint(FILE *f, const struct msr val, const uint8_t bits); +int msr_eq(const struct msr a, const struct msr b); +struct msr msr_shl(const struct msr a, const uint8_t bits); +struct msr msr_shr(const struct msr a, const uint8_t bits); +void msr_and(struct msr *a, const struct msr b); +const struct msrdef *findmsrdef(const uint32_t addr); +void dumpmsrdefs(const struct targetdef *t); +int dumpmsrdefsvals(FILE *f, const struct targetdef *t, const uint8_t cpu); +uint8_t str2msr(char *str, struct msr *msr); +void decodemsr(const uint8_t cpu, const uint32_t addr, const struct msr val); +uint8_t diff_msr(FILE *fout, const uint32_t addr, const struct msr a, const struct msr b); + + + +/** system externs **/ + +/* linux.c */ +extern int linux_probe(const struct sysdef *system); +extern int linux_open(uint8_t cpu, enum SysModes mode); +extern int linux_close(uint8_t cpu); +extern int linux_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val); + + +/** target externs **/ + +/* geodelx.c */ +extern int geodelx_probe(const struct targetdef *t); +extern const struct msrdef geodelx_msrs[]; + +/* cs5536.c */ +extern int cs5536_probe(const struct targetdef *t); +extern const struct msrdef cs5536_msrs[]; + +#endif /* MSRTOOL_H */ -- cgit v1.2.3