| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Nicolas Pitre | f6d9804 | 2014-07-25 16:05:30 -0400 | [diff] [blame] | 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> |