projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| f6d9804d NP |
2 | #undef TRACE_SYSTEM |
| 3 | #define TRACE_SYSTEM ipi | |
| 4 | ||
| 5 | #if !defined(_TRACE_IPI_H) || defined(TRACE_HEADER_MULTI_READ) | |
| 6 | #define _TRACE_IPI_H | |
| 7 | ||
| 8 | #include <linux/tracepoint.h> | |
| 9 | ||
| 10 | /** | |
| 11 | * ipi_raise - called when a smp cross call is made | |
| 12 | * | |
| 13 | * @mask: mask of recipient CPUs for the IPI | |
| 14 | * @reason: string identifying the IPI purpose | |
| 15 | * | |
| 16 | * It is necessary for @reason to be a static string declared with | |
| 17 | * __tracepoint_string. | |
| 18 | */ | |
| 19 | TRACE_EVENT(ipi_raise, | |
| 20 | ||
| 21 | TP_PROTO(const struct cpumask *mask, const char *reason), | |
| 22 | ||
| 23 | TP_ARGS(mask, reason), | |
| 24 | ||
| 25 | TP_STRUCT__entry( | |
| 26 | __bitmask(target_cpus, nr_cpumask_bits) | |
| 27 | __field(const char *, reason) | |
| 28 | ), | |
| 29 | ||
| 30 | TP_fast_assign( | |
| 31 | __assign_bitmask(target_cpus, cpumask_bits(mask), nr_cpumask_bits); | |
| 32 | __entry->reason = reason; | |
| 33 | ), | |
| 34 | ||
| 35 | TP_printk("target_mask=%s (%s)", __get_bitmask(target_cpus), __entry->reason) | |
| 36 | ); | |
| 37 | ||
| 38 | DECLARE_EVENT_CLASS(ipi_handler, | |
| 39 | ||
| 40 | TP_PROTO(const char *reason), | |
| 41 | ||
| 42 | TP_ARGS(reason), | |
| 43 | ||
| 44 | TP_STRUCT__entry( | |
| 45 | __field(const char *, reason) | |
| 46 | ), | |
| 47 | ||
| 48 | TP_fast_assign( | |
| 49 | __entry->reason = reason; | |
| 50 | ), | |
| 51 | ||
| 52 | TP_printk("(%s)", __entry->reason) | |
| 53 | ); | |
| 54 | ||
| 55 | /** | |
| 56 | * ipi_entry - called immediately before the IPI handler | |
| 57 | * | |
| 58 | * @reason: string identifying the IPI purpose | |
| 59 | * | |
| 60 | * It is necessary for @reason to be a static string declared with | |
| 61 | * __tracepoint_string, ideally the same as used with trace_ipi_raise | |
| 62 | * for that IPI. | |
| 63 | */ | |
| 64 | DEFINE_EVENT(ipi_handler, ipi_entry, | |
| 65 | ||
| 66 | TP_PROTO(const char *reason), | |
| 67 | ||
| 68 | TP_ARGS(reason) | |
| 69 | ); | |
| 70 | ||
| 71 | /** | |
| 72 | * ipi_exit - called immediately after the IPI handler returns | |
| 73 | * | |
| 74 | * @reason: string identifying the IPI purpose | |
| 75 | * | |
| 76 | * It is necessary for @reason to be a static string declared with | |
| 77 | * __tracepoint_string, ideally the same as used with trace_ipi_raise for | |
| 78 | * that IPI. | |
| 79 | */ | |
| 80 | DEFINE_EVENT(ipi_handler, ipi_exit, | |
| 81 | ||
| 82 | TP_PROTO(const char *reason), | |
| 83 | ||
| 84 | TP_ARGS(reason) | |
| 85 | ); | |
| 86 | ||
| 87 | #endif /* _TRACE_IPI_H */ | |
| 88 | ||
| 89 | /* This part must be outside protection */ | |
| 90 | #include <trace/define_trace.h> |