63 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#undef TRACE_SYSTEM3#define TRACE_SYSTEM tlb4 5#if !defined(_TRACE_TLB_H) || defined(TRACE_HEADER_MULTI_READ)6#define _TRACE_TLB_H7 8#include <linux/mm_types.h>9#include <linux/tracepoint.h>10 11#define TLB_FLUSH_REASON \12 EM( TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" ) \13 EM( TLB_REMOTE_SHOOTDOWN, "remote shootdown" ) \14 EM( TLB_LOCAL_SHOOTDOWN, "local shootdown" ) \15 EM( TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" ) \16 EMe( TLB_REMOTE_SEND_IPI, "remote ipi send" )17 18/*19 * First define the enums in TLB_FLUSH_REASON to be exported to userspace20 * via TRACE_DEFINE_ENUM().21 */22#undef EM23#undef EMe24#define EM(a,b) TRACE_DEFINE_ENUM(a);25#define EMe(a,b) TRACE_DEFINE_ENUM(a);26 27TLB_FLUSH_REASON28 29/*30 * Now redefine the EM() and EMe() macros to map the enums to the strings31 * that will be printed in the output.32 */33#undef EM34#undef EMe35#define EM(a,b) { a, b },36#define EMe(a,b) { a, b }37 38TRACE_EVENT(tlb_flush,39 40 TP_PROTO(int reason, unsigned long pages),41 TP_ARGS(reason, pages),42 43 TP_STRUCT__entry(44 __field( int, reason)45 __field(unsigned long, pages)46 ),47 48 TP_fast_assign(49 __entry->reason = reason;50 __entry->pages = pages;51 ),52 53 TP_printk("pages:%ld reason:%s (%d)",54 __entry->pages,55 __print_symbolic(__entry->reason, TLB_FLUSH_REASON),56 __entry->reason)57);58 59#endif /* _TRACE_TLB_H */60 61/* This part must be outside protection */62#include <trace/define_trace.h>63