3 * interface to x86 model-specific MSR operations
5 * @remark Copyright 2002 OProfile authors
6 * @remark Read the file COPYING
8 * @author Graydon Hoare
9 * @author Robert Richter <robert.richter@amd.com>
12 #ifndef OP_X86_MODEL_H
13 #define OP_X86_MODEL_H
15 #include <asm/types.h>
16 #include <asm/perf_event.h>
24 struct op_msr
*counters
;
25 struct op_msr
*controls
;
26 struct op_msr
*multiplex
;
31 struct oprofile_operations
;
33 /* The model vtable abstracts the differences between
34 * various x86 CPU models' perfctr support.
36 struct op_x86_model_spec
{
37 unsigned int num_counters
;
38 unsigned int num_controls
;
39 unsigned int num_virt_counters
;
42 int (*init
)(struct oprofile_operations
*ops
);
43 int (*fill_in_addresses
)(struct op_msrs
* const msrs
);
44 void (*setup_ctrs
)(struct op_x86_model_spec
const *model
,
45 struct op_msrs
const * const msrs
);
46 int (*check_ctrs
)(struct pt_regs
* const regs
,
47 struct op_msrs
const * const msrs
);
48 void (*start
)(struct op_msrs
const * const msrs
);
49 void (*stop
)(struct op_msrs
const * const msrs
);
50 void (*shutdown
)(struct op_msrs
const * const msrs
);
51 #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
52 void (*switch_ctrl
)(struct op_x86_model_spec
const *model
,
53 struct op_msrs
const * const msrs
);
57 struct op_counter_config
;
59 static inline void op_x86_warn_in_use(int counter
)
62 * The warning indicates an already running counter. If
63 * oprofile doesn't collect data, then try using a different
64 * performance counter on your platform to monitor the desired
65 * event. Delete counter #%d from the desired event by editing
66 * the /usr/share/oprofile/%s/<cpu>/events file. If the event
67 * cannot be monitored by any other counter, contact your
68 * hardware or BIOS vendor.
70 pr_warning("oprofile: counter #%d on cpu #%d may already be used\n",
71 counter
, smp_processor_id());
74 static inline void op_x86_warn_reserved(int counter
)
76 pr_warning("oprofile: counter #%d is already reserved\n", counter
);
79 extern u64
op_x86_get_ctrl(struct op_x86_model_spec
const *model
,
80 struct op_counter_config
*counter_config
);
81 extern int op_x86_phys_to_virt(int phys
);
82 extern int op_x86_virt_to_phys(int virt
);
84 extern struct op_x86_model_spec op_ppro_spec
;
85 extern struct op_x86_model_spec op_p4_spec
;
86 extern struct op_x86_model_spec op_p4_ht2_spec
;
87 extern struct op_x86_model_spec op_amd_spec
;
88 extern struct op_x86_model_spec op_arch_perfmon_spec
;
90 #endif /* OP_X86_MODEL_H */