genirq/matrix: Add tracepoints
Add tracepoints for the irq bitmap matrix allocator. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Juergen Gross <jgross@suse.com> Tested-by: Yu Chen <yu.c.chen@intel.com> Acked-by: Juergen Gross <jgross@suse.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Alok Kataria <akataria@vmware.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Rui Zhang <rui.zhang@intel.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Len Brown <lenb@kernel.org> Link: https://lkml.kernel.org/r/20170913213153.279468022@linutronix.dehifive-unleashed-5.1
Thomas Gleixner
parent
2f75d9e1c9
commit
ec0f7cd273
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@ -0,0 +1,201 @@
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM irq_matrix
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#if !defined(_TRACE_IRQ_MATRIX_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_IRQ_MATRIX_H
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#include <linux/tracepoint.h>
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struct irq_matrix;
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struct cpumap;
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DECLARE_EVENT_CLASS(irq_matrix_global,
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TP_PROTO(struct irq_matrix *matrix),
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TP_ARGS(matrix),
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TP_STRUCT__entry(
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__field( unsigned int, online_maps )
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__field( unsigned int, global_available )
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__field( unsigned int, global_reserved )
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__field( unsigned int, total_allocated )
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),
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TP_fast_assign(
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__entry->online_maps = matrix->online_maps;
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__entry->global_available = matrix->global_available;
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__entry->global_reserved = matrix->global_reserved;
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__entry->total_allocated = matrix->total_allocated;
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),
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TP_printk("online_maps=%d global_avl=%u, global_rsvd=%u, total_alloc=%u",
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__entry->online_maps, __entry->global_available,
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__entry->global_reserved, __entry->total_allocated)
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);
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DECLARE_EVENT_CLASS(irq_matrix_global_update,
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TP_PROTO(int bit, struct irq_matrix *matrix),
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TP_ARGS(bit, matrix),
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TP_STRUCT__entry(
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__field( int, bit )
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__field( unsigned int, online_maps )
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__field( unsigned int, global_available )
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__field( unsigned int, global_reserved )
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__field( unsigned int, total_allocated )
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),
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TP_fast_assign(
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__entry->bit = bit;
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__entry->online_maps = matrix->online_maps;
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__entry->global_available = matrix->global_available;
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__entry->global_reserved = matrix->global_reserved;
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__entry->total_allocated = matrix->total_allocated;
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),
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TP_printk("bit=%d online_maps=%d global_avl=%u, global_rsvd=%u, total_alloc=%u",
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__entry->bit, __entry->online_maps,
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__entry->global_available, __entry->global_reserved,
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__entry->total_allocated)
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);
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DECLARE_EVENT_CLASS(irq_matrix_cpu,
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TP_PROTO(int bit, unsigned int cpu, struct irq_matrix *matrix,
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struct cpumap *cmap),
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TP_ARGS(bit, cpu, matrix, cmap),
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TP_STRUCT__entry(
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__field( int, bit )
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__field( unsigned int, cpu )
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__field( bool, online )
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__field( unsigned int, available )
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__field( unsigned int, allocated )
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__field( unsigned int, managed )
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__field( unsigned int, online_maps )
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__field( unsigned int, global_available )
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__field( unsigned int, global_reserved )
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__field( unsigned int, total_allocated )
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),
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TP_fast_assign(
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__entry->bit = bit;
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__entry->cpu = cpu;
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__entry->online = cmap->online;
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__entry->available = cmap->available;
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__entry->allocated = cmap->allocated;
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__entry->managed = cmap->managed;
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__entry->online_maps = matrix->online_maps;
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__entry->global_available = matrix->global_available;
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__entry->global_reserved = matrix->global_reserved;
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__entry->total_allocated = matrix->total_allocated;
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),
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TP_printk("bit=%d cpu=%u online=%d avl=%u alloc=%u managed=%u online_maps=%u global_avl=%u, global_rsvd=%u, total_alloc=%u",
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__entry->bit, __entry->cpu, __entry->online,
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__entry->available, __entry->allocated,
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__entry->managed, __entry->online_maps,
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__entry->global_available, __entry->global_reserved,
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__entry->total_allocated)
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);
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DEFINE_EVENT(irq_matrix_global, irq_matrix_online,
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TP_PROTO(struct irq_matrix *matrix),
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TP_ARGS(matrix)
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);
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DEFINE_EVENT(irq_matrix_global, irq_matrix_offline,
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TP_PROTO(struct irq_matrix *matrix),
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TP_ARGS(matrix)
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);
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DEFINE_EVENT(irq_matrix_global, irq_matrix_reserve,
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TP_PROTO(struct irq_matrix *matrix),
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TP_ARGS(matrix)
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);
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DEFINE_EVENT(irq_matrix_global, irq_matrix_remove_reserved,
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TP_PROTO(struct irq_matrix *matrix),
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TP_ARGS(matrix)
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);
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DEFINE_EVENT(irq_matrix_global_update, irq_matrix_assign_system,
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TP_PROTO(int bit, struct irq_matrix *matrix),
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TP_ARGS(bit, matrix)
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);
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DEFINE_EVENT(irq_matrix_cpu, irq_matrix_alloc_reserved,
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TP_PROTO(int bit, unsigned int cpu,
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struct irq_matrix *matrix, struct cpumap *cmap),
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TP_ARGS(bit, cpu, matrix, cmap)
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);
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DEFINE_EVENT(irq_matrix_cpu, irq_matrix_reserve_managed,
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TP_PROTO(int bit, unsigned int cpu,
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struct irq_matrix *matrix, struct cpumap *cmap),
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TP_ARGS(bit, cpu, matrix, cmap)
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);
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DEFINE_EVENT(irq_matrix_cpu, irq_matrix_remove_managed,
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TP_PROTO(int bit, unsigned int cpu,
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struct irq_matrix *matrix, struct cpumap *cmap),
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TP_ARGS(bit, cpu, matrix, cmap)
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);
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DEFINE_EVENT(irq_matrix_cpu, irq_matrix_alloc_managed,
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TP_PROTO(int bit, unsigned int cpu,
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struct irq_matrix *matrix, struct cpumap *cmap),
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TP_ARGS(bit, cpu, matrix, cmap)
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);
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DEFINE_EVENT(irq_matrix_cpu, irq_matrix_assign,
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TP_PROTO(int bit, unsigned int cpu,
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struct irq_matrix *matrix, struct cpumap *cmap),
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TP_ARGS(bit, cpu, matrix, cmap)
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);
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DEFINE_EVENT(irq_matrix_cpu, irq_matrix_alloc,
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TP_PROTO(int bit, unsigned int cpu,
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struct irq_matrix *matrix, struct cpumap *cmap),
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TP_ARGS(bit, cpu, matrix, cmap)
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);
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DEFINE_EVENT(irq_matrix_cpu, irq_matrix_free,
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TP_PROTO(int bit, unsigned int cpu,
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struct irq_matrix *matrix, struct cpumap *cmap),
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TP_ARGS(bit, cpu, matrix, cmap)
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);
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#endif /* _TRACE_IRQ_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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@ -36,6 +36,9 @@ struct irq_matrix {
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unsigned long system_map[IRQ_MATRIX_SIZE];
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};
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#define CREATE_TRACE_POINTS
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#include <trace/events/irq_matrix.h>
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/**
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* irq_alloc_matrix - Allocate a irq_matrix structure and initialize it
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* @matrix_bits: Number of matrix bits must be <= IRQ_MATRIX_BITS
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@ -84,6 +87,7 @@ void irq_matrix_online(struct irq_matrix *m)
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m->global_available += cm->available;
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cm->online = true;
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m->online_maps++;
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trace_irq_matrix_online(m);
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}
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/**
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@ -98,6 +102,7 @@ void irq_matrix_offline(struct irq_matrix *m)
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m->global_available -= cm->available;
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cm->online = false;
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m->online_maps--;
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trace_irq_matrix_offline(m);
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}
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static unsigned int matrix_alloc_area(struct irq_matrix *m, struct cpumap *cm,
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@ -145,6 +150,8 @@ void irq_matrix_assign_system(struct irq_matrix *m, unsigned int bit,
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}
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if (bit >= m->alloc_start && bit < m->alloc_end)
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m->systembits_inalloc++;
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trace_irq_matrix_assign_system(bit, m);
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}
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/**
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@ -172,6 +179,7 @@ int irq_matrix_reserve_managed(struct irq_matrix *m, const struct cpumask *msk)
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cm->available--;
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m->global_available--;
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}
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trace_irq_matrix_reserve_managed(bit, cpu, m, cm);
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}
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return 0;
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cleanup:
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@ -221,6 +229,7 @@ void irq_matrix_remove_managed(struct irq_matrix *m, const struct cpumask *msk)
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cm->available++;
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m->global_available++;
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}
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trace_irq_matrix_remove_managed(bit, cpu, m, cm);
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}
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}
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@ -242,6 +251,7 @@ int irq_matrix_alloc_managed(struct irq_matrix *m, unsigned int cpu)
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set_bit(bit, cm->alloc_map);
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cm->allocated++;
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m->total_allocated++;
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trace_irq_matrix_alloc_managed(bit, cpu, m, cm);
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return bit;
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}
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@ -264,6 +274,7 @@ void irq_matrix_assign(struct irq_matrix *m, unsigned int bit)
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m->total_allocated++;
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cm->available--;
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m->global_available--;
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trace_irq_matrix_assign(bit, smp_processor_id(), m, cm);
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}
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/**
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@ -282,6 +293,7 @@ void irq_matrix_reserve(struct irq_matrix *m)
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pr_warn("Interrupt reservation exceeds available resources\n");
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m->global_reserved++;
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trace_irq_matrix_reserve(m);
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}
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/**
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@ -296,6 +308,7 @@ void irq_matrix_reserve(struct irq_matrix *m)
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void irq_matrix_remove_reserved(struct irq_matrix *m)
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{
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m->global_reserved--;
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trace_irq_matrix_remove_reserved(m);
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}
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/**
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@ -326,6 +339,7 @@ int irq_matrix_alloc(struct irq_matrix *m, const struct cpumask *msk,
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if (reserved)
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m->global_reserved--;
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*mapped_cpu = cpu;
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trace_irq_matrix_alloc(bit, cpu, m, cm);
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return bit;
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}
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}
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@ -357,6 +371,7 @@ void irq_matrix_free(struct irq_matrix *m, unsigned int cpu,
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m->global_available++;
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}
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}
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trace_irq_matrix_free(bit, cpu, m, cm);
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}
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/**
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