| 1 | // SPDX-FileCopyrightText: 2017 Michael Jeanson <mjeanson@efficios.com> |
| 2 | // |
| 3 | // SPDX-License-Identifier: GPL-2.0-only |
| 4 | |
| 5 | #ifdef CONFIG_PREEMPTIRQ_EVENTS |
| 6 | |
| 7 | #undef TRACE_SYSTEM |
| 8 | #define TRACE_SYSTEM preemptirq |
| 9 | |
| 10 | #if !defined(LTTNG_TRACE_PREEMPTIRQ_H) || defined(TRACE_HEADER_MULTI_READ) |
| 11 | #define LTTNG_TRACE_PREEMPTIRQ_H |
| 12 | |
| 13 | #include <linux/ktime.h> |
| 14 | #include <linux/string.h> |
| 15 | #include <asm/sections.h> |
| 16 | #include <lttng/tracepoint-event.h> |
| 17 | |
| 18 | /* |
| 19 | * The preemptirq probe is built when CONFIG_PREEMPTIRQ_EVENTS is defined. |
| 20 | */ |
| 21 | |
| 22 | LTTNG_TRACEPOINT_EVENT_CLASS(preemptirq_template, |
| 23 | |
| 24 | TP_PROTO(unsigned long ip, unsigned long parent_ip), |
| 25 | |
| 26 | TP_ARGS(ip, parent_ip), |
| 27 | |
| 28 | TP_FIELDS( |
| 29 | ctf_integer_hex(unsigned long, caller, ip) |
| 30 | ctf_integer_hex(unsigned long, parent, parent_ip) |
| 31 | ) |
| 32 | ) |
| 33 | |
| 34 | /* |
| 35 | * Tracing of irq enable / disable events is enabled |
| 36 | * on >= 4.19 when CONFIG_TRACE_IRQFLAGS is defined. |
| 37 | * on previous kernels when CONFIG_PROVE_LOCKING is NOT defined. |
| 38 | */ |
| 39 | #if defined(CONFIG_TRACE_IRQFLAGS) |
| 40 | #define LTTNG_TRACE_IRQ |
| 41 | #elif (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,19,0) && \ |
| 42 | !defined(CONFIG_PROVE_LOCKING)) |
| 43 | #define LTTNG_TRACE_IRQ |
| 44 | #endif |
| 45 | |
| 46 | #ifdef LTTNG_TRACE_IRQ |
| 47 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, irq_disable, |
| 48 | |
| 49 | preemptirq_irq_disable, |
| 50 | |
| 51 | TP_PROTO(unsigned long ip, unsigned long parent_ip), |
| 52 | |
| 53 | TP_ARGS(ip, parent_ip) |
| 54 | ) |
| 55 | |
| 56 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, irq_enable, |
| 57 | |
| 58 | preemptirq_irq_enable, |
| 59 | |
| 60 | TP_PROTO(unsigned long ip, unsigned long parent_ip), |
| 61 | |
| 62 | TP_ARGS(ip, parent_ip) |
| 63 | ) |
| 64 | #endif /* LTTNG_TRACE_IRQ */ |
| 65 | |
| 66 | /* |
| 67 | * Tracing of preempt enable / disable events is enabled |
| 68 | * on >= 4.19 when CONFIG_TRACE_PREEMPT_TOGGLE is defined. |
| 69 | * on previous kernels when CONFIG_DEBUG_PREEMPT is defined. |
| 70 | */ |
| 71 | #if defined(CONFIG_TRACE_PREEMPT_TOGGLE) |
| 72 | #define LTTNG_TRACE_PREEMPT |
| 73 | #elif (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,19,0) && \ |
| 74 | defined(CONFIG_DEBUG_PREEMPT)) |
| 75 | #define LTTNG_TRACE_PREEMPT |
| 76 | #endif |
| 77 | |
| 78 | #ifdef LTTNG_TRACE_PREEMPT |
| 79 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, preempt_disable, |
| 80 | |
| 81 | preemptirq_preempt_disable, |
| 82 | |
| 83 | TP_PROTO(unsigned long ip, unsigned long parent_ip), |
| 84 | |
| 85 | TP_ARGS(ip, parent_ip) |
| 86 | ) |
| 87 | |
| 88 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(preemptirq_template, preempt_enable, |
| 89 | |
| 90 | preemptirq_preempt_enable, |
| 91 | |
| 92 | TP_PROTO(unsigned long ip, unsigned long parent_ip), |
| 93 | |
| 94 | TP_ARGS(ip, parent_ip) |
| 95 | ) |
| 96 | #endif /* LTTNG_TRACE_PREEMPT */ |
| 97 | |
| 98 | #endif /* LTTNG_TRACE_PREEMPTIRQ_H */ |
| 99 | |
| 100 | /* This part must be outside protection */ |
| 101 | #include <lttng/define_trace.h> |
| 102 | |
| 103 | #endif /* CONFIG_PREEMPTIRQ_EVENTS */ |