Skip to content

L
linux
Commit ec0f7cd2 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files
Options

genirq/matrix: Add tracepoints 

Add tracepoints for the irq bitmap matrix allocator.
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Tested-by: default avatarJuergen Gross <jgross@suse.com>
Tested-by: default avatarYu Chen <yu.c.chen@intel.com>
Acked-by: default avatarJuergen 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.de
parent 2f75d9e1
Hide whitespace changes
Inline Side-by-side
Showing with 216 additions and 0 deletions
include/trace/events/irq_matrix.h 0 → 100644
View file @ ec0f7cd2
#undef TRACE_SYSTEM
#define TRACE_SYSTEM irq_matrix
#if !defined(_TRACE_IRQ_MATRIX_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_IRQ_MATRIX_H
#include <linux/tracepoint.h>
struct irq_matrix;
struct cpumap;
DECLARE_EVENT_CLASS(irq_matrix_global,
TP_PROTO(struct irq_matrix *matrix),
TP_ARGS(matrix),
TP_STRUCT__entry(
__field( unsigned int, online_maps )
__field( unsigned int, global_available )
__field( unsigned int, global_reserved )
__field( unsigned int, total_allocated )
),
TP_fast_assign(
__entry->online_maps = matrix->online_maps;
__entry->global_available = matrix->global_available;
__entry->global_reserved = matrix->global_reserved;
__entry->total_allocated = matrix->total_allocated;
),
TP_printk("online_maps=%d global_avl=%u, global_rsvd=%u, total_alloc=%u",
__entry->online_maps, __entry->global_available,
__entry->global_reserved, __entry->total_allocated)
);
DECLARE_EVENT_CLASS(irq_matrix_global_update,
TP_PROTO(int bit, struct irq_matrix *matrix),
TP_ARGS(bit, matrix),
TP_STRUCT__entry(
__field( int, bit )
__field( unsigned int, online_maps )
__field( unsigned int, global_available )
__field( unsigned int, global_reserved )
__field( unsigned int, total_allocated )
),
TP_fast_assign(
__entry->bit = bit;
__entry->online_maps = matrix->online_maps;
__entry->global_available = matrix->global_available;
__entry->global_reserved = matrix->global_reserved;
__entry->total_allocated = matrix->total_allocated;
),
TP_printk("bit=%d online_maps=%d global_avl=%u, global_rsvd=%u, total_alloc=%u",
__entry->bit, __entry->online_maps,
__entry->global_available, __entry->global_reserved,
__entry->total_allocated)
);
DECLARE_EVENT_CLASS(irq_matrix_cpu,
TP_PROTO(int bit, unsigned int cpu, struct irq_matrix *matrix,
struct cpumap *cmap),
TP_ARGS(bit, cpu, matrix, cmap),
TP_STRUCT__entry(
__field( int, bit )
__field( unsigned int, cpu )
__field( bool, online )
__field( unsigned int, available )
__field( unsigned int, allocated )
__field( unsigned int, managed )
__field( unsigned int, online_maps )
__field( unsigned int, global_available )
__field( unsigned int, global_reserved )
__field( unsigned int, total_allocated )
),
TP_fast_assign(
__entry->bit = bit;
__entry->cpu = cpu;
__entry->online = cmap->online;
__entry->available = cmap->available;
__entry->allocated = cmap->allocated;
__entry->managed = cmap->managed;
__entry->online_maps = matrix->online_maps;
__entry->global_available = matrix->global_available;
__entry->global_reserved = matrix->global_reserved;
__entry->total_allocated = matrix->total_allocated;
),
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",
__entry->bit, __entry->cpu, __entry->online,
__entry->available, __entry->allocated,
__entry->managed, __entry->online_maps,
__entry->global_available, __entry->global_reserved,
__entry->total_allocated)
);
DEFINE_EVENT(irq_matrix_global, irq_matrix_online,
TP_PROTO(struct irq_matrix *matrix),
TP_ARGS(matrix)
);
DEFINE_EVENT(irq_matrix_global, irq_matrix_offline,
TP_PROTO(struct irq_matrix *matrix),
TP_ARGS(matrix)
);
DEFINE_EVENT(irq_matrix_global, irq_matrix_reserve,
TP_PROTO(struct irq_matrix *matrix),
TP_ARGS(matrix)
);
DEFINE_EVENT(irq_matrix_global, irq_matrix_remove_reserved,
TP_PROTO(struct irq_matrix *matrix),
TP_ARGS(matrix)
);
DEFINE_EVENT(irq_matrix_global_update, irq_matrix_assign_system,
TP_PROTO(int bit, struct irq_matrix *matrix),
TP_ARGS(bit, matrix)
);
DEFINE_EVENT(irq_matrix_cpu, irq_matrix_alloc_reserved,
TP_PROTO(int bit, unsigned int cpu,
struct irq_matrix *matrix, struct cpumap *cmap),
TP_ARGS(bit, cpu, matrix, cmap)
);
DEFINE_EVENT(irq_matrix_cpu, irq_matrix_reserve_managed,
TP_PROTO(int bit, unsigned int cpu,
struct irq_matrix *matrix, struct cpumap *cmap),
TP_ARGS(bit, cpu, matrix, cmap)
);
DEFINE_EVENT(irq_matrix_cpu, irq_matrix_remove_managed,
TP_PROTO(int bit, unsigned int cpu,
struct irq_matrix *matrix, struct cpumap *cmap),
TP_ARGS(bit, cpu, matrix, cmap)
);
DEFINE_EVENT(irq_matrix_cpu, irq_matrix_alloc_managed,
TP_PROTO(int bit, unsigned int cpu,
struct irq_matrix *matrix, struct cpumap *cmap),
TP_ARGS(bit, cpu, matrix, cmap)
);
DEFINE_EVENT(irq_matrix_cpu, irq_matrix_assign,
TP_PROTO(int bit, unsigned int cpu,
struct irq_matrix *matrix, struct cpumap *cmap),
TP_ARGS(bit, cpu, matrix, cmap)
);
DEFINE_EVENT(irq_matrix_cpu, irq_matrix_alloc,
TP_PROTO(int bit, unsigned int cpu,
struct irq_matrix *matrix, struct cpumap *cmap),
TP_ARGS(bit, cpu, matrix, cmap)
);
DEFINE_EVENT(irq_matrix_cpu, irq_matrix_free,
TP_PROTO(int bit, unsigned int cpu,
struct irq_matrix *matrix, struct cpumap *cmap),
TP_ARGS(bit, cpu, matrix, cmap)
);
#endif /* _TRACE_IRQ_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
kernel/irq/matrix.c
View file @ ec0f7cd2
......@@ -36,6 +36,9 @@ struct irq_matrix {
unsigned long system_map[IRQ_MATRIX_SIZE];
};
#define CREATE_TRACE_POINTS
#include <trace/events/irq_matrix.h>
/**
* irq_alloc_matrix - Allocate a irq_matrix structure and initialize it
* @matrix_bits: Number of matrix bits must be <= IRQ_MATRIX_BITS
......@@ -84,6 +87,7 @@ void irq_matrix_online(struct irq_matrix *m)
m->global_available += cm->available;
cm->online = true;
m->online_maps++;
trace_irq_matrix_online(m);
}
/**
......@@ -98,6 +102,7 @@ void irq_matrix_offline(struct irq_matrix *m)
m->global_available -= cm->available;
cm->online = false;
m->online_maps--;
trace_irq_matrix_offline(m);
}
static unsigned int matrix_alloc_area(struct irq_matrix *m, struct cpumap *cm,
......@@ -145,6 +150,8 @@ void irq_matrix_assign_system(struct irq_matrix *m, unsigned int bit,
}
if (bit >= m->alloc_start && bit < m->alloc_end)
m->systembits_inalloc++;
trace_irq_matrix_assign_system(bit, m);
}
/**
......@@ -172,6 +179,7 @@ int irq_matrix_reserve_managed(struct irq_matrix *m, const struct cpumask *msk)
cm->available--;
m->global_available--;
}
trace_irq_matrix_reserve_managed(bit, cpu, m, cm);
}
return 0;
cleanup:
......@@ -221,6 +229,7 @@ void irq_matrix_remove_managed(struct irq_matrix *m, const struct cpumask *msk)
cm->available++;
m->global_available++;
}
trace_irq_matrix_remove_managed(bit, cpu, m, cm);
}
}
......@@ -242,6 +251,7 @@ int irq_matrix_alloc_managed(struct irq_matrix *m, unsigned int cpu)
set_bit(bit, cm->alloc_map);
cm->allocated++;
m->total_allocated++;
trace_irq_matrix_alloc_managed(bit, cpu, m, cm);
return bit;
}
......@@ -264,6 +274,7 @@ void irq_matrix_assign(struct irq_matrix *m, unsigned int bit)
m->total_allocated++;
cm->available--;
m->global_available--;
trace_irq_matrix_assign(bit, smp_processor_id(), m, cm);
}
/**
......@@ -282,6 +293,7 @@ void irq_matrix_reserve(struct irq_matrix *m)
pr_warn("Interrupt reservation exceeds available resources\n");
m->global_reserved++;
trace_irq_matrix_reserve(m);
}
/**
......@@ -296,6 +308,7 @@ void irq_matrix_reserve(struct irq_matrix *m)
void irq_matrix_remove_reserved(struct irq_matrix *m)
{
m->global_reserved--;
trace_irq_matrix_remove_reserved(m);
}
/**
......@@ -326,6 +339,7 @@ int irq_matrix_alloc(struct irq_matrix *m, const struct cpumask *msk,
if (reserved)
m->global_reserved--;
*mapped_cpu = cpu;
trace_irq_matrix_alloc(bit, cpu, m, cm);
return bit;
}
}
......@@ -357,6 +371,7 @@ void irq_matrix_free(struct irq_matrix *m, unsigned int cpu,
m->global_available++;
}
}
trace_irq_matrix_free(bit, cpu, m, cm);
}
/**
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7