69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
--- lsmsr.c.orig 2009-02-06 20:10:58.000000000 +0300
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+++ lsmsr.c 2009-02-09 01:51:49.000000000 +0300
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@@ -31,6 +31,18 @@
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#include "AMD/fam10h.h"
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#include "generic_msr.h"
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+#if defined(__FreeBSD__)
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+# include <sys/param.h>
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+# include <sys/ioctl.h>
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+# if __FreeBSD_version < 701102
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+# define CPUDEV "/dev/cpu%d"
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+# include <cpu.h>
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+# else
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+# define CPUDEV "/dev/cpuctl%d"
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+# include <sys/cpuctl.h>
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+# endif
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+#endif
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+
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/* Todos:
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* - add (list and eventually write) support for write-only MSR
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* - add decoding support for bit fields
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@@ -117,6 +129,29 @@
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fprintf(stdout, "%s version %s\n", g.prog, VERSION);
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}
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+#if defined(__FreeBSD__)
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+
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+int get_msr_val(unsigned int msr, unsigned long long *val)
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+{
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+#if __FreeBSD_version < 701102
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+ cpu_msr_args_t args;
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+#else
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+ cpuctl_msr_args_t args;
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+#endif
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+
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+ args.msr = msr;
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+#if __FreeBSD_version < 701102
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+ if (ioctl(g.fd, CPU_RDMSR, &args) != 0) {
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+#else
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+ if (ioctl(g.fd, CPUCTL_RDMSR, &args) != 0) {
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+#endif
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+ return 0;
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+ }
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+ *val = args.data;
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+
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+ return 0;
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+}
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+#else /* !__FreeBSD__ */
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static int get_msr_val(unsigned int msr, unsigned long long *val)
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{
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off64_t off;
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@@ -142,11 +177,17 @@
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return 0;
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}
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+#endif
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+
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static int open_dev(int cpu)
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{
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char s[20];
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+#ifdef __FreeBSD__
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+ snprintf(s, sizeof(s), CPUDEV, cpu);
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+#else
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snprintf(s, sizeof(s), "/dev/cpu/%d/msr", cpu);
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+#endif
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g.fd = open(s, O_RDONLY);
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if (g.fd < 0)
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fprintf(stderr, "could not open device %s: %s\n", s,
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