op_x86_model.h

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#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_warning("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_warning("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 */