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authorGustavo Padovan <gustavo.padovan@collabora.co.uk>2016-08-11 18:26:44 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-08-15 17:41:46 +0300
commit35538d7822e86cb38015c21bb708a433f8814af0 (patch)
tree36aa2ccfe355aa93ad345715988a36ceba2498ea /drivers/dma-buf/sync_trace.h
parentfc0c9a03b57efb769a74fa8b33d68d90153b5950 (diff)
downloadlinux-35538d7822e86cb38015c21bb708a433f8814af0.tar.xz
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>
Diffstat (limited to 'drivers/dma-buf/sync_trace.h')
-rw-r--r--drivers/dma-buf/sync_trace.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/dma-buf/sync_trace.h b/drivers/dma-buf/sync_trace.h
new file mode 100644
index 000000000000..d13d59ff1b85
--- /dev/null
+++ b/drivers/dma-buf/sync_trace.h
@@ -0,0 +1,32 @@
+#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>