diff options
| -rw-r--r-- | arch/x86/events/intel/pt.c | 12 | ||||
| -rw-r--r-- | arch/x86/include/asm/intel_pt.h | 2 |
2 files changed, 11 insertions, 3 deletions
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c index 2e83d8d8a52b..918a43937749 100644 --- a/arch/x86/events/intel/pt.c +++ b/arch/x86/events/intel/pt.c @@ -75,14 +75,20 @@ static struct pt_cap_desc { PT_CAP(psb_periods, 1, CPUID_EBX, 0xffff0000), }; -u32 intel_pt_validate_hw_cap(enum pt_capabilities cap) +u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities capability) { - struct pt_cap_desc *cd = &pt_caps[cap]; - u32 c = pt_pmu.caps[cd->leaf * PT_CPUID_REGS_NUM + cd->reg]; + struct pt_cap_desc *cd = &pt_caps[capability]; + u32 c = caps[cd->leaf * PT_CPUID_REGS_NUM + cd->reg]; unsigned int shift = __ffs(cd->mask); return (c & cd->mask) >> shift; } +EXPORT_SYMBOL_GPL(intel_pt_validate_cap); + +u32 intel_pt_validate_hw_cap(enum pt_capabilities cap) +{ + return intel_pt_validate_cap(pt_pmu.caps, cap); +} EXPORT_SYMBOL_GPL(intel_pt_validate_hw_cap); static ssize_t pt_cap_show(struct device *cdev, diff --git a/arch/x86/include/asm/intel_pt.h b/arch/x86/include/asm/intel_pt.h index fa4b4fd2dbed..00f4afb2b7de 100644 --- a/arch/x86/include/asm/intel_pt.h +++ b/arch/x86/include/asm/intel_pt.h @@ -26,9 +26,11 @@ enum pt_capabilities { #if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_INTEL) void cpu_emergency_stop_pt(void); extern u32 intel_pt_validate_hw_cap(enum pt_capabilities cap); +extern u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities cap); #else static inline void cpu_emergency_stop_pt(void) {} static inline u32 intel_pt_validate_hw_cap(enum pt_capabilities cap) { return 0; } +static inline u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities capability) { return 0; } #endif #endif /* _ASM_X86_INTEL_PT_H */ |