arch/i386/oprofile/op_x86_model.h

   1 /**
   2  * @file op_x86_model.h
   3  * interface to x86 model-specific MSR operations
   4  *
   5  * @remark Copyright 2002 OProfile authors
   6  * @remark Read the file COPYING
   7  *
   8  * @author Graydon Hoare
   9  */
  10
  11 #ifndef OP_X86_MODEL_H
  12 #define OP_X86_MODEL_H
  13
  14 struct op_saved_msr {
  15         unsigned int high;
  16         unsigned int low;
  17 };
  18
  19 struct op_msr {
  20         unsigned long addr;
  21         struct op_saved_msr saved;
  22 };
  23
  24 struct op_msrs {
  25         struct op_msr * counters;
  26         struct op_msr * controls;
  27 };
  28
  29 struct pt_regs;
  30
  31 /* The model vtable abstracts the differences between
  32  * various x86 CPU model's perfctr support.
  33  */
  34 struct op_x86_model_spec {
  35         unsigned int const num_counters;
  36         unsigned int const num_controls;
  37         void (*fill_in_addresses)(struct op_msrs * const msrs);
  38         void (*setup_ctrs)(struct op_msrs const * const msrs);
  39         int (*check_ctrs)(unsigned int const cpu,
  40                 struct op_msrs const * const msrs,
  41                 struct pt_regs * const regs);
  42         void (*start)(struct op_msrs const * const msrs);
  43         void (*stop)(struct op_msrs const * const msrs);
  44 };
  45
  46 extern struct op_x86_model_spec const op_ppro_spec;
  47 extern struct op_x86_model_spec const op_p4_spec;
  48 extern struct op_x86_model_spec const op_p4_ht2_spec;
  49 extern struct op_x86_model_spec const op_athlon_spec;
  50
  51 #endif /* OP_X86_MODEL_H */