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
8enum 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)
28void cpu_emergency_stop_pt(void);
29extern u32 intel_pt_validate_hw_cap(enum pt_capabilities cap);
30extern u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities cap);
31#else
32static inline void cpu_emergency_stop_pt(void) {}
33static inline u32 intel_pt_validate_hw_cap(enum pt_capabilities cap) { return 0; }
34static inline u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities capability) { return 0; }
35#endif
36
37#endif /* _ASM_X86_INTEL_PT_H */
38