arch/x86/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  * @author Robert Richter <robert.richter@amd.com>
  10  */
  11
  12 #ifndef OP_X86_MODEL_H
  13 #define OP_X86_MODEL_H
  14
  15 #include <asm/types.h>
  16 #include <asm/intel_arch_perfmon.h>
  17
  18 struct op_saved_msr {
  19         unsigned int high;
  20         unsigned int low;
  21 };
  22
  23 struct op_msr {
  24         unsigned long addr;
  25         struct op_saved_msr saved;
  26 };
  27
  28 struct op_msrs {
  29         struct op_msr *counters;
  30         struct op_msr *controls;
  31 };
  32
  33 struct pt_regs;
  34
  35 struct oprofile_operations;
  36
  37 /* The model vtable abstracts the differences between
  38  * various x86 CPU models' perfctr support.
  39  */
  40 struct op_x86_model_spec {
  41         unsigned int    num_counters;
  42         unsigned int    num_controls;
  43         u64             reserved;
  44         u16             event_mask;
  45         int             (*init)(struct oprofile_operations *ops);
  46         void            (*exit)(void);
  47         void            (*fill_in_addresses)(struct op_msrs * const msrs);
  48         void            (*setup_ctrs)(struct op_x86_model_spec const *model,
  49                                       struct op_msrs const * const msrs);
  50         int             (*check_ctrs)(struct pt_regs * const regs,
  51                                       struct op_msrs const * const msrs);
  52         void            (*start)(struct op_msrs const * const msrs);
  53         void            (*stop)(struct op_msrs const * const msrs);
  54         void            (*shutdown)(struct op_msrs const * const msrs);
  55 };
  56
  57 struct op_counter_config;
  58
  59 extern u64 op_x86_get_ctrl(struct op_x86_model_spec const *model,
  60                            struct op_counter_config *counter_config);
  61
  62 extern struct op_x86_model_spec const op_ppro_spec;
  63 extern struct op_x86_model_spec const op_p4_spec;
  64 extern struct op_x86_model_spec const op_p4_ht2_spec;
  65 extern struct op_x86_model_spec const op_amd_spec;
  66 extern struct op_x86_model_spec op_arch_perfmon_spec;
  67
  68 #endif /* OP_X86_MODEL_H */