/** * @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 [31mCONFIG_OPROFILE_EVENT_MULTIPLEX[0m 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 */ |