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linux-next/drivers/dma-buf/sync_trace.h
Gustavo Padovan 35538d7822 dma-buf/sw_sync: de-stage SW_SYNC
SW_SYNC allows to run tests on the sync_file framework via debugfs on

<debugfs>/sync/sw_sync

Opening and closing the file triggers creation and release of a sync
timeline. To create fences on this timeline the SW_SYNC_IOC_CREATE_FENCE
ioctl should be used. To increment the timeline value use SW_SYNC_IOC_INC.

Also it exports Sync information on

<debugfs>/sync/info

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 16:41:46 +02:00

33 lines
735 B
C

#undef TRACE_SYSTEM
#define TRACE_INCLUDE_PATH ../../drivers/dma-buf
#define TRACE_SYSTEM sync_trace
#if !defined(_TRACE_SYNC_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SYNC_H
#include "sync_debug.h"
#include <linux/tracepoint.h>
TRACE_EVENT(sync_timeline,
TP_PROTO(struct sync_timeline *timeline),
TP_ARGS(timeline),
TP_STRUCT__entry(
__string(name, timeline->name)
__field(u32, value)
),
TP_fast_assign(
__assign_str(name, timeline->name);
__entry->value = timeline->value;
),
TP_printk("name=%s value=%d", __get_str(name), __entry->value)
);
#endif /* if !defined(_TRACE_SYNC_H) || defined(TRACE_HEADER_MULTI_READ) */
/* This part must be outside protection */
#include <trace/define_trace.h>