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/**
* @file op_x86_model.h
* interface to x86 model-specific MSR operations
*
* @remark Copyright 2002 OProfile authors
* @remark Read the file COPYING
*
* @author Graydon Hoare
* @author Robert Richter <robert.richter@amd.com>
*/
#ifndef OP_X86_MODEL_H
#define OP_X86_MODEL_H
#include <asm/types.h>
#include <asm/perf_event.h>
struct op_msr {
unsigned long addr;
u64 saved;
};
struct op_msrs {
struct op_msr *counters;
struct op_msr *controls;
struct op_msr *multiplex;
};
struct pt_regs;
struct oprofile_operations;
/* The model vtable abstracts the differences between
* various x86 CPU models' perfctr support.
*/
struct op_x86_model_spec {
unsigned int num_counters;
unsigned int num_controls;
unsigned int num_virt_counters;
u64 reserved;
u16 event_mask;
int (*init)(struct oprofile_operations *ops);
int (*fill_in_addresses)(struct op_msrs * const msrs);
void (*setup_ctrs)(struct op_x86_model_spec const *model,
struct op_msrs const * const msrs);
int (*check_ctrs)(struct pt_regs * const regs,
struct op_msrs const * const msrs);
void (*start)(struct op_msrs const * const msrs);
void (*stop)(struct op_msrs const * const msrs);
void (*shutdown)(struct op_msrs const * const msrs);
#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
void (*switch_ctrl)(struct op_x86_model_spec const *model,
struct op_msrs const * const msrs);
#endif
};
struct op_counter_config;
static inline void op_x86_warn_in_use(int counter)
{
/*
* The warning indicates an already running counter. If
* oprofile doesn't collect data, then try using a different
* performance counter on your platform to monitor the desired
* event. Delete counter #%d from the desired event by editing
* the /usr/share/oprofile/%s/<cpu>/events file. If the event
* cannot be monitored by any other counter, contact your
* hardware or BIOS vendor.
*/
pr_warn("oprofile: counter #%d on cpu #%d may already be used\n",
counter, smp_processor_id());
}
static inline void op_x86_warn_reserved(int counter)
{
pr_warn("oprofile: counter #%d is already reserved\n", counter);
}
extern u64 op_x86_get_ctrl(struct op_x86_model_spec const *model,
struct op_counter_config *counter_config);
extern int op_x86_phys_to_virt(int phys);
extern int op_x86_virt_to_phys(int virt);
extern struct op_x86_model_spec op_ppro_spec;
extern struct op_x86_model_spec op_p4_spec;
extern struct op_x86_model_spec op_p4_ht2_spec;
extern struct op_x86_model_spec op_amd_spec;
extern struct op_x86_model_spec op_arch_perfmon_spec;
#endif /* OP_X86_MODEL_H */
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