diff options
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm64/Kconfig | 1 | ||||
| -rw-r--r-- | include/trace/events/ipi.h | 58 | ||||
| -rw-r--r-- | kernel/trace/Kconfig | 6 |
4 files changed, 38 insertions, 28 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 3072731fe09c..e8f98217d0fc 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -102,6 +102,7 @@ config ARM select HAVE_BUILDTIME_MCOUNT_SORT select HAVE_DEBUG_KMEMLEAK if !XIP_KERNEL select HAVE_DMA_CONTIGUOUS if MMU + select HAVE_EXTRA_IPI_TRACEPOINTS select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 393d71124f5d..a027cb81dfcc 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -136,6 +136,7 @@ config ARM64 select CPU_PM if (SUSPEND || CPU_IDLE) select CPUMASK_OFFSTACK if NR_CPUS > 256 select DCACHE_WORD_ACCESS + select HAVE_EXTRA_IPI_TRACEPOINTS select DYNAMIC_FTRACE if FUNCTION_TRACER select DMA_BOUNCE_UNALIGNED_KMALLOC select DMA_DIRECT_REMAP diff --git a/include/trace/events/ipi.h b/include/trace/events/ipi.h index 3de9bfc982ce..9912f0ded81d 100644 --- a/include/trace/events/ipi.h +++ b/include/trace/events/ipi.h @@ -7,34 +7,6 @@ #include <linux/tracepoint.h> -/** - * ipi_raise - called when a smp cross call is made - * - * @mask: mask of recipient CPUs for the IPI - * @reason: string identifying the IPI purpose - * - * It is necessary for @reason to be a static string declared with - * __tracepoint_string. - */ -TRACE_EVENT(ipi_raise, - - TP_PROTO(const struct cpumask *mask, const char *reason), - - TP_ARGS(mask, reason), - - TP_STRUCT__entry( - __bitmask(target_cpus, nr_cpumask_bits) - __field(const char *, reason) - ), - - TP_fast_assign( - __assign_bitmask(target_cpus, cpumask_bits(mask), nr_cpumask_bits); - __entry->reason = reason; - ), - - TP_printk("target_mask=%s (%s)", __get_bitmask(target_cpus), __entry->reason) -); - TRACE_EVENT(ipi_send_cpu, TP_PROTO(const unsigned int cpu, unsigned long callsite, void *callback), @@ -79,6 +51,35 @@ TRACE_EVENT(ipi_send_cpumask, __get_cpumask(cpumask), __entry->callsite, __entry->callback) ); +#ifdef CONFIG_HAVE_EXTRA_IPI_TRACEPOINTS +/** + * ipi_raise - called when a smp cross call is made + * + * @mask: mask of recipient CPUs for the IPI + * @reason: string identifying the IPI purpose + * + * It is necessary for @reason to be a static string declared with + * __tracepoint_string. + */ +TRACE_EVENT(ipi_raise, + + TP_PROTO(const struct cpumask *mask, const char *reason), + + TP_ARGS(mask, reason), + + TP_STRUCT__entry( + __bitmask(target_cpus, nr_cpumask_bits) + __field(const char *, reason) + ), + + TP_fast_assign( + __assign_bitmask(target_cpus, cpumask_bits(mask), nr_cpumask_bits); + __entry->reason = reason; + ), + + TP_printk("target_mask=%s (%s)", __get_bitmask(target_cpus), __entry->reason) +); + DECLARE_EVENT_CLASS(ipi_handler, TP_PROTO(const char *reason), @@ -127,6 +128,7 @@ DEFINE_EVENT(ipi_handler, ipi_exit, TP_ARGS(reason) ); +#endif /* CONFIG_HAVE_EXTRA_IPI_TRACEPOINTS */ #endif /* _TRACE_IPI_H */ diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index a3f35c7d83b6..35448f7233fe 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -53,6 +53,12 @@ config HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS config HAVE_DYNAMIC_FTRACE_WITH_CALL_OPS bool +config HAVE_EXTRA_IPI_TRACEPOINTS + bool + help + For architectures that use ipi_raise, ipi_entry and ipi_exit + tracepoints. + config HAVE_DYNAMIC_FTRACE_WITH_ARGS bool help |