linux-stable/arch/x86/include/asm/intel_pt.h
Ingo Molnar 163b099146 x86: Fix various typos in comments, take #2
Fix another ~42 single-word typos in arch/x86/ code comments,
missed a few in the first pass, in particular in .S files.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-kernel@vger.kernel.org
2021-03-21 23:50:28 +01:00

39 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_INTEL_PT_H
#define _ASM_X86_INTEL_PT_H
#define PT_CPUID_LEAVES 2
#define PT_CPUID_REGS_NUM 4 /* number of registers (eax, ebx, ecx, edx) */
enum pt_capabilities {
PT_CAP_max_subleaf = 0,
PT_CAP_cr3_filtering,
PT_CAP_psb_cyc,
PT_CAP_ip_filtering,
PT_CAP_mtc,
PT_CAP_ptwrite,
PT_CAP_power_event_trace,
PT_CAP_topa_output,
PT_CAP_topa_multiple_entries,
PT_CAP_single_range_output,
PT_CAP_output_subsys,
PT_CAP_payloads_lip,
PT_CAP_num_address_ranges,
PT_CAP_mtc_periods,
PT_CAP_cycle_thresholds,
PT_CAP_psb_periods,
};
#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);
extern int is_intel_pt_event(struct perf_event *event);
#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; }
static inline int is_intel_pt_event(struct perf_event *event) { return 0; }
#endif
#endif /* _ASM_X86_INTEL_PT_H */