1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_X86_INTEL_PT_H 3 #define _ASM_X86_INTEL_PT_H 4 5 #define PT_CPUID_LEAVES 2 6 #define PT_CPUID_REGS_NUM 4 /* number of regsters (eax, ebx, ecx, edx) */ 7 8 enum pt_capabilities { 9 PT_CAP_max_subleaf = 0, 10 PT_CAP_cr3_filtering, 11 PT_CAP_psb_cyc, 12 PT_CAP_ip_filtering, 13 PT_CAP_mtc, 14 PT_CAP_ptwrite, 15 PT_CAP_power_event_trace, 16 PT_CAP_topa_output, 17 PT_CAP_topa_multiple_entries, 18 PT_CAP_single_range_output, 19 PT_CAP_output_subsys, 20 PT_CAP_payloads_lip, 21 PT_CAP_num_address_ranges, 22 PT_CAP_mtc_periods, 23 PT_CAP_cycle_thresholds, 24 PT_CAP_psb_periods, 25 }; 26 27 #if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_INTEL) 28 void cpu_emergency_stop_pt(void); 29 extern u32 intel_pt_validate_hw_cap(enum pt_capabilities cap); 30 extern u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities cap); 31 extern int is_intel_pt_event(struct perf_event *event); 32 #else 33 static inline void cpu_emergency_stop_pt(void) {} 34 static inline u32 intel_pt_validate_hw_cap(enum pt_capabilities cap) { return 0; } 35 static inline u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities capability) { return 0; } 36 static inline int is_intel_pt_event(struct perf_event *event) { return 0; } 37 #endif 38 39 #endif /* _ASM_X86_INTEL_PT_H */ 40